Title of Invention

EXHAUST GAS PURIFYING APPARATUS FOR MOTOR CYCLES

Abstract An exhaust gas purifying apparatus comprising: an exhaust pipe connected to an engine; a catalyst arranged in the exhaust pipe; a secondary air supply pipe connected to the exhaust pipe on an upstream side of a position in which the catalyst is arranged; and a muffler that accommodates a connection of the secondary air supply pipe and the exhaust pipe and an end of the exhaust pipe, through which exhaust gases are discharged, wherein the muffler comprises a flow inhibiting member provided between the end or the exhaust pipe and the connection to inhibit flow of exhaust gases.
Full Text EXHAUST GAS PURIFYING APPARATUS
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an exhaust gas purifying
apparatus, in which exhaust gases discharged from an engine
are mixed with a secondary air to be purified.
2. Description of the Related Art
Conventionally, there exists an exhaust gas purifying
apparatus for motorcycles, in which a catalyst is arranged in
an exhaust pipe connected to an engine and a secondary air supply
pipe is connected to an upstream side of the catalyst to permit
a secondary air and exhaust gases to be mixed together, thereby
activating an operation of the catalyst (for example, Japanese
Utility Model Registration No. 2504008). With a conventional
exhaust gas purifying apparatus, however, a connection of the
exhaust pipe and the secondary air supply pipe is exposed to
an outside. Therefore, there is a fear that a coating on the
connection is deteriorated due to heat of exhaust gases flowing
through the exhaust pipe to lead to marring of an outward
appearance.
In this connection, an exhaust gas purifying apparatus
is conceivable, inwhiich a secondary air supply pipe is introduced
into a muffler and a connection of an exhaust pipe and the secondary
air supply pipe is accommodated in the muffler and exposure
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of the connection is. prevented from,
SUMMARY OF THE INVENTION
With the exhaust gas purifying apparatus, in which the
secondary air supply pipe is introduced into themuffler, however,
the secondary air supply pipe is excessively heated when
high-temperature exhaust gases discharged from an end of the
exhaust pipe are jetted directly toward the secondary air supply
pipe. In this case, an air flowing through an interior of the
secondary air supply pipe is heated during its flowing step
to expand in volume, therefore, there is a fear that oxygen
flowing into the exhaust pipe is reduced in volume.
The invention has been thought of in view of the situation
and has its object to provide an exhaust gas purifying apparatus
that prevents high-temperature exhaust gases from heating a
secondary air supply pipe and inhibits a decrease in an amount
of oxygen which flows into an exhaust pipe.
In order to solve such problem, the invention provides
an exhaust gas purifying apparatus comprising an exhaust pipe
connected to an engine, a catalyst arranged in the exhaust pipe,
a secondary sir supply pipe connected to the exhaust pipe on
an upstream side of a position in which the catalyst is arranged,
and a muffler that accommodates a connection of the secondary
air supply pipe and the exhaust pipe and an end of the exhaust
pipe, through which Exhaust gases are discharged, and wherein
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the muffler comprises a flow inhibiting member provided between
the and of the exhaust pipe and the connection to inhibit flow
of exhaust gases.
According to the invention, the flow inhibiting member
is provided between the end of the exhaust pipe, through which
exhaust gases are discharged, and the connection, to inhibit
flow of exhaust gases. Therefore, exhaust gases discharged
from the end of the exhaust pipe are prevented from being jetted
directly toward the secondary air supply pipe. Consequently,
the secondary air supply pipe is not heated excessively, so
that it is possible to inhibit a decrease in amount of oxygen
which flows into the exhaust pipe from the secondary expansion
chamber. Also, since the catalyst is arranged in the exhaust
pipe, a major part of heat of exhaust gases ere not leaked outside
the exhaust pipe but fed to the catalyst, so that an operation
of the catalyst is activated.
Here, the flow inhibiting member is arranged between the
end of the exhaust pipe and the connection to comprise, for
example, a partition that separates an expansion chamber, in
which the end of the exhaust pipe is arranged, and the secondary
air supply pipe from each other, a shield that inhibits exhaust
gases, which are jetted from the end of the exhaust pipe, from
reaching the connection linearly, etc. Also, the flow inhibiting
member is not limited to a circular shape or an elliptical shape
conformed to a cross sectional shape of the muffler in a short
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side direction but may be various in shape, for example,
semi-circular, or the like. Also, the flow inhibiting member
maybe joined to a whole inner peripheral surface of the muffler
to be supported thereby or may be supported by a part of art
inner peripheral surface of the muffler, or a pipe arranged
in the muffler. Also, the flow inhibiting member may be a
plate-shaped member, or a member partially having a projection
and a recess while taking consideration the sizes ot the expansion
chambers inside the muffler.
Also, in order to solve such problem, the invention provides
a further exhaust gas.purifying apparatus comprising an exhaust
pipe connected to an engine, a catalyst arranged in the exhaust
pipe, a secondary air supply pipe connected, to the exhaust pipe
on an upstream side of a position in which the catalyst is arranged,
and a muffler that accommodates a connection of the secondary
air supply pipe and the exhaust pipe and an end of the exhaust
pipe, through which exhaust gases are discharged, and wherein
the muffler comprises a flow inhibiting member provided between
the end of the exhaust pipe and that portion of the secondary
air supply pipe, which is accommodated in the muffler, to inhibit
flow of exhaust gases. According to the invention, exhaust
gases discharged from the end of the exhaust pipe are not jetted
directly toward the secondary air supply pipe, so that the
secondary air supply pipe portion is not heated excessively
and a decrease in an amount of oxygen, which flows into the
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exhaust pipe from the secondary air supply pipe, is inhibited.
Also, in an embodiment of the invention, at least a part
of art outer wall of the muffler is double-structured to have
an inner wall member and an outer wall member, the secondary
air supply pipe extends between the inner wall member and the
outer wall member to be introduced into the muffler, and the
flow inhibiting member comprises the inner wall member.
According to this embodiment, the secondary air supply pipe
extends between the inner wall member and the outer wall member
to be introduced into the muffler. Therefore, since the inner
wall member inhibits exhaust gases from being jetted. directly
toward the secondary air supply pipe, the secondary expansion
chamber is prevented from being excessively increased in
temperature. Also, a downstream portion of the secondary
expansion chamber toward the exhaust pipe is prevented by the
outer wall member from being exposed to an owtside air.
Consequently, heat preserved inside the muffler raises a
low-temperature secondary air slightly in temperature to cause
the same to flow into exhaust pipe, thereby activating an operati on
of the catalyst further.
Also, in the embodiment, the muffler may comprise a hollow
drum and a lid member joined to an opening of the hollow drum,
and the lid member may be double-structured to have an inner
wall member and an outer wall member. By doing this, since
the lid member is double-structured to have an inner wall member
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and an outer wall member and the inner wall member functions
as a flow inhibiting member, an exhaust gas purifying apparatus
is realized, which is easy to assemble as compared with the
case where, for example, an exclusive member for inhibition
of flow of exhaust gases is arranged in the muffler.
Also, in an embodijrtent of the invention, the muffler
comprises therein a plurality of expansion chambers, and the
flow inhibiting member is used as a partition for separation
of the expansion chambers of the muffler. According to this
embodiment, since the partition for separation of the expansion
chambers of the mutfler is used as a flow inhibiting member
that inhibits flow of exhaust gases, it is possible to inhibit
a decrease in amount of oxygen, which flows into the exhaust
pipe from the secondary expansion chamber, without an increase
in the number of parts for an exhaust gas purifying apparatus.
Also, in order to solve such problem, the invention provides
a further exhaust gas purifying apparatus comprising an exhaust
pipe connected to an engine, a catalyst arranged in the exhaust
pipe, a secondary air supply pipe connected to the exhaust pipe
on an upstream side of a position in which the catalyst is arranged,
and a muffler that accommodates a connection of the -secondary
air supply pipe and the exhaust pipe and an end of the exhaust
pipe, through which exhaust gases are discharged, and wherein
that portion of the secondary air supply pipe, which is
accommodated- in the muffler, is arranged in a region except
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that spatial region, into which exhaust gases discharged from
the end of the exhaust pipe are jetted directly. According
to the invention, that portion of the secondary air supply pipe,
which is accommodated in the muffler, is arranged in a region
except that region, into which exhaust gases discharged from
the end of the exhaust pipe are jetted directly. Therefore,
the secondary air supply pipe portion is not heated excessively
and a decrease in an amount of oxygen, which flows into the
exhaust pipe from the secondary air supply pipe, is inhibited.
Also, in an embodiment of the invention, the exhaust pipe
comprises a straight pipe portion, from an end of which exhaust
gases are discharged, the muffler accommodates the end of the
straight pipe portion, and the secondary air supply pipe is
provided so as to be clear of its intersection of a spatial
region in the muffler, which extends in a direction of extension
of the straight pipe portion from the end of the straight pipe
portion. According to the embodiment, the secondary air supply
pipe is provided in the muffler to be clear of its intersection
of a spatial region in a direction of extension of the straight
pipe portion. Therefore, exhaust gases discharged from the
end of the straight pipe portion are not jetted directly toward
the secondary air supply pipe and the secondary air supply pipe
is prevented from being heated excessively. That is, exhaust
gases are discharged from the straight pipe portion to expand,
decreased in temperature, and then contacts first with the
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secondary air supply pipe. Consequently, the secondary sir
supply pipe is prevented from being heated excessively.
Also, according to an embodiment of the invention, the
secondary air supply pipe is arranged on an opposite side of
the end of the exhaust pipe to a direction in Which exhaust
gases discharged From the end are discharged. According to
this embodiment, the secondary air supply pipe is connected
to the exhaust pipe positioned on an opposite side of the end
of the exhaust pipe to a direction in which exhaust gases discharged
from the end are discharged. Therefore, exhaust gases discharged
from the end of the exhaust pipe are inhibited from reaching
the secondary air supply pipe directly, and the secondary air
supply pipe is prevented from being heated excessively.
Also, the saddle-ride type vehicle according to the
invention is provided with, atxy ane at the exhaust gas purifying
apparatuses. The saddle-ride type vehicle comprises, for
example, a motorcycle (including a scooter), a four-wheeled
buggy, a snowmobile, etc. According to the invention, exhaust
gases discharged from the end of the exhaust pipe are prevented
from being jetted directly toward the secondary air supply pipe.
Therefore, the secondary air supply pipe is prevented from
being increased excessively in temperature and a decrease in
amount of oxygen in a secondary air being mixed with exhaust
gases is inhibited. Then, since an operation of a catalyst
is further activated, further clean exhaust gases axe discharged
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from the muffler and so a saddle-ride type vehicle being favorable
in terms of an environment is realized.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a side view showing a motorcycle provided with
an exhaust gaspurifying apparatus according to a first embodiment
at the invention;
Fig. 2 is a cross sectional view showing, the exhaust gas
purifying apparatus;
Fig. 3 is a perspective view showing a front part of the
exhaust gas purifying apparatus in a whicle traveling direction;
Fig, 4 is a cross sectional view taken along the line IV-IV
in Fig. 2;
Fig. 5 is a cross sectional view showing an exhaust gas
purifying apparatus according to a second embodiment;
Fig. 6 is a cross sectional view taken along ths line'VI-VI
in Fig. 5;
Fig. 7 is a cross sectional view showing an exhaust gas
purifying apparatus according to a third embodiment.
Fig. 8 is across sectional view taken along the lineVIII-VIII
in Fig, 7; and
Fig, 9 is a cross sectional view showing a rear part of
an exhaust gas purifying apparatus, according to a fourth
embodiment, in a vehicle traveling direction.
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DETAILED DESCRIPTION OF THE PREFFERED EMBODIMENTS
An embodiment of the invention will be described below
with reference to the drawings.
Figs. 1 to 4 are views illustrating an exhaust gas purifying
apparatus according to a first embodiment of the invention.
Fig. l is a side view showing an outward appearance of a motorcycle
being a configuration of a saddle-ride type vehicle according
to the invention, Fig. 2 is a cross sectional view showing an
exhaust gas purifying apparatus 20 according to the first
embodiment, and Fig. 3 is a perspective view showing a front
part of. the exhaust gas purifying apparatus 20 in a vehicle
traveling direction. Fig. 4 is a cross sectional view taken
along the line IV-IV in Fig. -2.
In Fig. 1, a front end of an undeirbone type vehicle body
frame 2 of a motorcycle 1 supports a front fork 3 to enable
the same to turn left and right. A central portion of the vehicle
body frame 2 supports a unit swing type engine unit 4 to enable
the same to swing vertically. A seat 5 is mounted above the
engine unit 4. The front fork 3 mounts a front wheel 6 at a
lower end thereof and a handle 7 at an upper end thereof. A
rear wheel 8 is arranged at a rear end of the engine unit 4.
The engine unit 4 is constructed to unite a four-cycle
water-cooled engine with a transmission casing, in which a V-belt
type continuously variable transmission is provided, and an
engine 10 is mounted with a cylinder shaft directed substantially
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horizontally and forvardly.
The engine 10 is connected to an exhaust pipe 15, through
which, exhaust gases discharged upon driving of the engine ID
are discharged rearward in a vehicle traveling direction (a
direction indicated by Fr in the figure) . The exhaust pipe
15 extends rightward from a portion thereof connected to the
engine 10 in the vehicle traveling direction and substantially
linearly rearwardly of a vehicle body. A downstream portion
15a (referred below to as a downstream portion of the exhaust
pipe, see Fig. 2) of the exhaust pipe 15 is accommodated in
a muffler 30. The muffler 30 connects thereto a tail pipe 17,
through which exhaust gases are discharged rearward in the-vehicle
traveling direction.
An exhaust gas purifying apparatus 20 is arranged on a
right side of the rear wheel 8 in the vehicle traveling direction
to purify NOX, CO, HC in exhaust gases discharged from the engine
10 . The exhaust gas purifying apparatus 20 comprises the muffler
30 and the exhaust pipe downstream portion 15a. A bracket 18
is joined to an upper portion of the exhaust gas purifying apparatus
20, the bracket I8 being securedly bolted to the engine unit
4. Thereby, the exhaust gas purifying apparatus 20 is made
to swing vertically together with the engine unit 4. A secondary
air supply pipe 23 is introduced into the muffler 30 which forms
the exhaust, gas purifying apparatus 20, an end of the secondary
ais supply pipe 23 being connected to the exhaust pipe downstream
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portion 15a (see figs. 2 to 4).
One end of a secondary air introduction pipe 25 is connected
to the other end of the secondary air supply pipe 23, which
projects outwardly of the muffler 30, and the other end of the
secondary air introduction pipe 25 is connected to a reed valve
assembly 26. The reed valve assembly 26 is arranged inside
a rear cover, rearwardly downwardly of the seat 5, and above
the rear wheel 8 . The reed valve assembly 26 has the function
of permitting only flow of a secondary air toward a catalyst
and blocking flow in an opposite direction.
The exhaust gas purifying apparatus 20 according to the
first embodiment of the invention will be described in detail
with reference to Figs. 2 to 4 .
As shown in Fig, 2, the muffler 30, which forms the exhaust
gas purifying apparatus 20, comprises a hollow drum 32 being
a Cylinder having a substantiallyelliptical-shaped cross section,
a front lid member 34 joined to a front opening of the hollow
drum 32 in the vehicle traveling direction, and a rear lid member
36 joined to a rear opening in the vehic.le traveling direction.
The hollow drum 32, the front lid member 34, and the rear lid
member 36, respectively, are double-structured. Glass wool
32a is charged between an outside member and an inside member
of the hollow drum 32 to enhance the heat insulating property
of the muffler 30.
An interior of the muffler 30 is compartedmented into a primary
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expansion chamber 50, a secondary expansion chamber 51, and
a third expansion chamber 52 in order from the front in the
vehicle traveling direction by a first partition 57 and a second
partition 58. A first pipe 56 is provided through the first
partition 57 in the primary expansion chamber 50 and the secondary
expansion chamber 51 to permit exhaust gases to flow from the
primary expansion chamber 50 to the secondary expansion chamber
51. Also, a second pipe 54 is provided through the second
partition 58 in the secondary expansion chamber 51 and the third
expansion chamber 52 to permit exhaust gases to flow from the
secondary expansion chamber 51 to the third expansion chamber
52 .
The front lid member 34 comprises an outer wall member
39, an inner wall member (a flow inhibiting member) 35, and
a cylindrical-shaped lid member 33. The outer wall number 39
is formed to be substantially.bowl-shaped, and formed at a bottom
thereof with an introduction port 39a for the exhaust pipe
downstream portion 15a. The cylindrical-shaped lid member 33
is formed to be cylindrical-shaped, and one end 33b thereof,
is joined to an edge 39d of the intreduction port 39a of the
outer wall member.
The inner wall member 35 is formed to be substantially
bowl-shaped, and an edge 35c thereof is formed to be the same
in shape as an edge 39c of the outer wall member 39 and joined
to an inside of the edge 39c of the outer wall member 39. The
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Inner Wall member 35 comprises a bottom 35a, which is deeper
than other portion, on a semi-circular portion of a bottom surface
thereof (see Fig. 4) . The inner wall member 35 is fitted inside
the outer wall member and joined in a plurality of locations
on the edge 35c thereof to an inside of the edge 39c of the
outer wall member 39. In addition, an insertion hole 35d for
permitting insertion of the exhaust pipe downstream portion
15a is also formed on the inner wall member 35.
The exhaust pipe dovnstream portion 15a is introduced into
the muffler 30 from an exhaust pipe introduction port 33a on
the other side of the cylinctrical-shaped lid member 33. The
exhaust pipe downstream portion 15a extends lengthwise of the
muffler 30 rearward from the front in the vehicle traveling
direction, and a rearmost portion 15c of the exhaust pipe
downstream portion 15a in the vehicle traveling direction is
bent in a U-shaped fashion. An end I5i, through which exhaust
gases are discharged, is positioned in the primary expansion
chamber 50 positioned forwardmost in the vehicle traveling
direction. Thereby, a length of the muffler 30 in a longitudinal
direction can be shortened while a length of the exhaust pipe
downstream portion 15a accommodated in the muffler 30 is
maintained.
Arranged in the exhaust pipe downstream portion 15a are
two catalysts, that is; an upstream catalyst 21 which mainly
perfoms reduction, and a downstream catalyst 22 which mainlv
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performs oxidation. The upstream catalyst 21 is arranged in
the exhaust pipe downstream portion 15a to be positioned inside
the cylindrical-shaped lid member 33. Exhaust gases supplied
from an upstream side of the exhaust pipe 15 flow through the
upstream catalyst 21 and the downstream catalyst 22, and then
are discharged into the primary expansion chamber 50 from the
end 15i of the exhaust pipe downstream portion 15a. In addition,
an end of the exhaust pipe introduction port 33a of the
cylindrical-shaped lid member 33 is tapered, and a tip end of
the tapered portion supports a side of the exhaust pipe downstream
portion 15a.
The secondary air supply pipe 23 is connected to a portion
of the exhaust pipe downstream portion 15a between the outer
wall member 39 and the inner wall member 35 and downstream of
the upstream catalyst 21. Here, connection of the secondary
air supply pipe 23 to the exhaust pipe downstream portion 15a
is described with reference to Figs. 4 and 3. In Fig. 4, the
rear wheel 8 of the vehicle is shown on the left of the exhaust
gas purifying apparatus 20, As shown in figure, an insertion
hole 39b is provided on an upper portion of the outer wall member
39 toward the vehicle body, and the secondary air supply pipe
23 is inserted into the mufflet 30 from the insertion hole 39b.
The secondary air supply pipe 23 comprises a first partial
supply pipe 23d and a second partial supply pipe 23e. In Fig.
4, the bottom 35a of the inner wall member 35 is shown as being
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semi-circular in cross section. The first partial supply pipe
23d is introduced into the muffler 30 along a side of the bottom
35a of the inner wall member 35. One end 23g of the first partial
supply pipe 23d is connected to the exhaust pipe downstream
portion 15a arranged in a lower region of the muffler 30. A
secondary air inflow port 15f is provided on the exhaust pipe
downstream portion 15a, and the one end 23g of the first partial
supply pipe 23d and a peripheral edge of the secondary air inflow
port 15f are joined together by welding.
In addition, in the vicinity of the secondary air inflow
port 15f of the exhaust pipe downstream portion 15a, the exhaust
pipe downstream portion 15a comprises a lower semi-cylindrical
member 15g which is substantially semi-cylindrical in shape,
and an upper semi-cylindrical member I5h which is likewise
substantially semi-cylindrical in shape (see Fig. 2) . The lower
semi-cylindrical member I5g forms a lower side of the exhaust
pipe downstream portion 15a, and the upper semi-cylindrical
member 15h forms an upper side of the exhaust pipe downstream
portion 15a. A side of the upper semi-cylindrical member I5h
and a side of the lower semi-cylindrical member 15q are joined
together to thereby form the cylindrical-shaped exhaust pipe
downstream portion 15a. Tne secondary air inflow port 15f is
formed on the upper semi-cylindrical member 15h. Also, the
other end 23h of the first partial supply pipe 23d and a side
23e' of the second partial supply pipe 23e are joined together
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outside the muffler 30 by welding. Thereby, when the exhaust
gas purifying apparatus 20 is to be assembled, the second partial
supply pipe 23e can be connected to the other end 23h of the
first partial supply pipe 23d after the first partial supply
pipe 23d is accommodated in the muffler 30, so that it becomes
easy to assemble the exhaust gas purifying apparatus 20.
As shown in Fig. 2, the secondary air supply pipe 23 is
introduced into the muffler 30 through a region between the
inner wall member 35 and the outer wall member 39 from outside
the muffler 30 to be connected to the exhaust pipe downstream
portion 15a between the inner wall member 35 and the outer wall
inember 39. A connection of the exhaust pipe downstream portion
15a and the secondary air supply pipe 23 and a portion (including
the end 15i) of the exhaust pipe downst ream portion 15a downstream
of the connection are accommodated in the muffler 30. Also,
in the exhaust pipe downstream portion 15a, a part downstream
of the connection of the exhaust pipe downstream portion 15a
and the secondary air supply pipe 23 is introduced into a
cylindrical-shaped body, which is formed by the inner wall member
35, the hollow drum 32, and the rear lid member 36, through
the insertion hole 35d provided on the inner wall member 35.
As descr ibed above, the end 15i of the exhaust pipe downstream
portion 15a is arranged inside the primary expansion chamber
50 provided forwardmost inside the muffler 30 in the vehicle
traveling direction. Also, as shown in Figs. 2 to 4, the first
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partial supplypipe 23d is introduced into the muffler 30 through
a region between the inner wall member 35 and the outer wall
member 39 from outside the muffler 30, Therefore, the inner
wall member 35 is provided between the end 15i of the exhaust
pipe downstream portion 15a and the first partial supply pipe
23d. Then, the inner wall member 35 functions as a flow inhibiting
member that inhibits exhaust gases discharged from the exhaust
pipe downstream portion 15a from being jetted directly toward
the first partial supply pipe 23d.
That is, the flow inhibiting member used as the inner wall
member 35 according to the embodiment shields a region from
the end I5i of the exhaust pipe downstream portion 15a to a
aide of the first partial supply pipe 23d accommodated in the
muffler 30 in all directions. Therefore, exhaust gases
discharged from the end I5i to be jetted towatd the first partial
supply pipe 236 strike against the inner wall member 35, so
that exhaust gases are inhibited from being Jetted directly
toward the first partial supply pipe 23d,
Further as described above, the edge 35c of of the innet
well number 35 is formed to be the same in shape as the edge
39c of the outer wall member 39, and an outside of the edge
35c and an inside of the edge 39c of the edge
are joined together in a plurality of locations.Accordingly
only a small amount of exhust gases havingexpende
primary expention chamber 50 to be XXX
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flows outside the inner wall member 35 from a clearance formed
between the inner wall member 35 and the outer wall member 39.
Therefore, the secondary air supply pipe 23 formed by the first
partial supply pipe 23d is not heated excessively and a decrease
in amount of oxygen in the secondary air is inhibited.
Also, the inner wall member 35 comprises the substantially
bowl-shaped bottom 35a formed to have a semi-circular cross
section, the bottom. 35a being positioned to be opposed to the
end I5i of the exhaust pipe downstream portion 15a. Therefore,
exhaust gases jetted toward the bottom 35a from the end 15i
of the exhaust pipe downstream portion 15a strike against the
bottom 35a to be inhibited from flowing toward the secondary
air supply pipe 23. Also, since the bottom 35a is formed to
be substantially bowl shaped, exhaust gases do not stagnate
on the bottom 35a but smoothly reversed in a jetting direction
to flow toward the first pipe 56 ,
Also, an air flowing in the secondary air supply pipe 23
is caused by heat, which :is preserved inside the outer wall
member 39, the cylindrical-shaped lid member 33, and the hollow
drum 32, to he slightly increased in temperature, as compared
with an outside air, while flowing through the first partial
supply pipe 23d. As a result, time elapsed until the catalyst
reaches its activation temperature is shortened.
In addition, according to the embodiment, while the
secondary air supply pipe 23 is introduced into the muffler
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30 through the insertion hole 39b formed on the upper portion
of the outer wall member 39 toward the vehicle body to be connected
to the peripheral edge of the secondary air inflow port I5f
formed on the upper semi-cylindrical member 15h. However, a
path, along which the secondary air supply pipe 23 is introduced,
is not limited thereto. For example, the insertion hole 39b
may be formed, on a lower portion of the outer wall member 39,
and. the secondary air inflow port 15f may be formed on the lower
semi-cylindrical member 15g. Then, the secondary air supply
pipe 23 may be In troduced into the muffler 30 through the insertion
hole 39b to be connected to the peripheral edge of the secondary
air inflow port I5f formed on the lower semi-cylindrical member
15g. In this case, the exhaust pipe downstream portion 15a
(the upper semi-cylindrical member 15h) itself is positioned
between the end I5i of the exhaust pipe downstream portion 15a
and a portion of the secondary air supply pipe 23 accomtnodated
in the muffler 30. Accordingly, the exhaust pipe downstream
portion 15a itself can function as a flow inhibiting member
of exhaust gases without the provision of the inner wall member
35 In the muffler 30.
Subsequently, an exhaust gas purifying apparatus 200
according to a second embodiment of the invention wil1 be described
with reference to Figs. 5 and 6. Fig. 5 shows the exhaust gas
purifying apparatus 200 according to the second embodiment of
the invention, and Fig, 6 is a cross sectional view taken along
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the line VI-VI in Fig, 5, Here, the same parts of the exhaust
gas purifying apparatus 200 according to the second embodiment
as those in rhe exhaust gas purifying apparatus 20 according
to the first embodiment are denoted by the same reference numerals
as those in the latter, and a detailed explanation therefore
is omitted below. Also, according to the present embodiment,
while a secondary air supply pipe 23 comprises a first partial
supply Pipe 23d and a second partial supply pipe 23e, it is
the same as that in the first embodiment, and so an explanation
therefore is omitted.
An exhaust pipe downstream portion 15a comprises a straight
pipe portion 15k, and exhaust gases are discharged into a muffler
30 from an end I5i of the straight pipe portion 15k. A secondary
air supply pipe 23 is provided go as to be clear of its intersection
of a spatial region V in the muffler 30, which extends in a
direction of extension of the straight pipe portion 15k from
the end 15i of the straight pipe portion 15k.
Specifically, as shown in Fig. 5, an exhaust pipe downstream
portion 15a is introduced into the muffler 30 from an exhaust
pipe introduction port 33a of a cylindrical-shaped lid meisher
33 to extend below the muffler 30 and rearward in a vehicle
traveling direction. An upstream catalyst 21 is arranged on
an upstream side in a portion of the exhaust pipe downstream
portion 15a extended rearward in the vehicle traveling direction.
A secondary air inflow port 15f is formed- on a downstream side
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of the upstream catalyst 21, and a downstream catalyst 22 is.
accommodated on a downstream side of the secondary air inflow
port 15f . A rearmost portion 15c of the exhaust pipe downstream
portion 15a in the vehicle traveling direction is bent in a
U-shaped fashion, and the straight pipe portion 15k contiguous
to the rearmost portion 15c in the vehicle traveling direction
is extended forward in the vehicle traveling direction. The
end 15i of the straight pipe portion 15k is positioned rearwardly
of the secondary air inflow port 15f in the vehicle traveling
direction.
Exhaust gases flowing through an interior of the straight
pipe portion 15k flows forward (a direction indicated by an
arrow G in the figure) in the vehicle traveling direction to
be discharged into the muffler 30 from the end 15i of the straight
pipe portion 15k. The exhaust gases as discharged flow further
forward in the vehicle traveling direction while expanding in
the muffler 30, and exhaust gases, which have not yet expanded
adequately and are especially high in temperature, are jetted
in a spatial region V in the muffler 30 which extends in the
direction of extension of the straight pipe portion 15k. When
the secondary air supply pipe 23 is arranged in a position,
in which it intersects the spatial region V, in the muffler
30, the secondary air supply pipe 23 is excessively heated.
According to the embodiment, as shown in Fig . 6, tha secondary
air supply pipe 23 is introduced into the muffler 30 while being
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clear of a position opposed to the end 15i of the straight pipe
portion 15k. Specifically, the secondary air supply pipe 23
is introduced into the muffler 30 from, an insertion hole 39b
which is formed on an upper portion of an outer wall member
39 forward in the vehicle traveling direction and toward a vehicle
body. The secondary air supply pipe 23 is extended toward a
central axis of the muffler 30, bent slightly downward at a
benc portion 23d1, and. extended, further. One end 23g of the
secondary air supply pipe 23 is joined to a peripheral edge
of the secondary air inflow port 15f formed on an upper
semi-cylindrical member 15h.
The exhaust pipe downstream portion 15a is extended in
a lower region in the muffler 30 and bent at the rearmost portion
15c in the vehicle traveling direction in a U-shaped fashion.
Therefore, the end 15i of the straight pipe portion 15k is
positioned as shown in Fig. 6 above the exhaust pipe downstream
portion 15a extended in a lower region in the muffler 30. As
described above, the secondary air supply pipe 23 is introduced
into the muffler 30 while being clear of a position opposed
to the end 15i of the straight pipe portion 15k. The secondary
air supply pipe 23 is arranged in the muffler 30 so as not to
intersect the spatial region V, which extends in the direction
of extension of the straight pipe portion 15k, and an end 23g
thereof is joined to a peripheral edge of the secondary air
inflow port I5f formed forwardly of the end I5i in the vehicle
- 23 -

traveling direction. Thereby, without the pxdvision- of a flew
inhibiting member (an inner wall member 35) in the muffler 30,
the secondary air supply pipe 23 can be prevented from being
heated excessively by exhaust gases . In addition, the insertion
hole 39b may be provided optionally, tor example, on the outer
wail member 39 further toward the vehicle body, or below the
muffler 30 to be clear of a position opposed to the end 15i
of the straight pipe portion l5k.
Subsequently, an exhaust gas purifying apparatus 201
according to a third embodiment of the invention will be described
with reference to Figs, 7 and 8. Fig. 7 shows the exhaust gas
purifying apparatus 201 according to the third enibodiment of
the invention, and Fig, 8 is a cross sectional view taken along
the line VI11-VI11 in Fig. 7 . Here, the same parts of the exhaust
gas purifying apparatus 201 according to the third embodiment
as those in the exhaust gas purifying apparatus 20 according'
to the first embodiment are denoted by the same reference numerals
as those in the latter, and a detailed explanation therefor
is omitted below. In addition, piping extending through
partitions to enable flow of exhaust gases between respective
expansion chambers, and a tail pipe are omitted in Fig. 8.
Also, a secondary air supply pipe 23 is indicated by two-dot
chain lines in Fig. 7,
As shown in Fig, 7, a muffler 30, which forms the exhaust
gas purifying apparatus 201, comprises a hollow drum 32, a
- 24 -

bowl-shaped front lid member 34 joined to a front opening of
the hollcw drum 32 in a vehicle traveling direction, and a rear
lid member 36 joined to a rear opening in the vehicle traveling
direction.
The hollow drum 32, the front lid member 34, and the rear
lid member 36, respectively, are double-structured. Glass wool
32a is charged between an outside member and an inside member
of the hollow drum 32. The front lid member 34 comprises a
bowl-shaped outer wall member 61 which forms an outer wall of
the muffler 30, and a bowl-shaped inner wall member 63 arranged
inside the outer wall member 61 to form an inner well of the
muffler 30, The both members are provided with an insertion
hole 34a. An exhaust pipe downstream portion. 15a extended
lengthwise of the muffler 30 is inserted through the insertion
hole 34a rearward from the front in the vehicle traveling direction.
The whole exhaust pipe downstream porrion 15a is accommodated
in the muffler 30. An upstream catalyst 21 and a downstream
catalyst 22 are arranged in the exhaust pipe downstream portion
15a to be positioned inside the muffler 30.
An interior of the muffler 30 is compartmented into a primary
expansion chamber 50, a secondary expansion, chamber 51, and
a third expansion chamber 52 in order from the rear in the vehicle
traveling direction by a first partition 57 and a secondpartition
58. A first pipe 56 is provided in the primary expansion chamber
50 and the secondary expansion chamber 51 to extend through
- 25 -

the first partition 57. Also, a second pipe 54 is provided
in the secondary expansion chamber 51 and the third expansion
chamber 52 to extend through the second partition 58. An edge
57' of the first partition 57 and an edge 58' of the second
partition 58 are joined to an inner peripheral surface of the
hollow drum by welding. Also, the first partition 57 is joined
to a side of the first pipe 56 by welding, and the second partition
56 is joined to a side of the second pipe 54 by welding. In
addition, the exhaust pipe downstream portion 15a extends through I
the first partition 57 and the secondpartition.58 and are supported
in the muffler 30 by the partitions. Also, a third pipe 55. 1
permitting exhaust gases, which have expanded in the third I
expansion chamber 52, to be discharged rearwatdly of a vehicle,
extends through the first partition 58 and the second par tition
57 to be connected to a tail pipe 17.
As shown in Fig. 8, a secondary air supply pipe 23 extends
inside the third expansion chamber 52 and the secondary expansion
chamber 51 of the muffler 30 in the same direction as an axis
of the exhaust pipe downstream portion l.5a. The secondary air
supply pipe 23 is bent at a bent portion 23c positioned in the
secondary expansion chamber 51 to be directed toward the exhaust
pipe downstream portion 15a, and an end 23a of the secondary
air supply pipe 23 is connected to the exhaust pipe downstream
portion 15a in the secondary expansion chamber 51.
Specifically, the end 23a of the secondary air supply pipe
- 26 -

23 is joined to a secondary air inflow port 15f provided between
the upstream catalyst 21 and the downstream catalyst 22 of the
exhaust pipe downstream portion 15a as shown in Fig, 8. The
secondary air inflow port I5f is positioned in the secondary
expansion chamber 51, A torus-shaped reinforcement member 42
is fitted onto the end 23a of the secondary air supply pipe
23. The reinforcement member 42 is joined to the end 23a of
the secondary air supply pipe 23 by welding and also joined
to a peripheral portion I5f' of the secondary air inflow port
I5f provided on a side of the exhaust pipe downstream portion
15a by welding. Thereby, strength, with which the secondary
air supply pipe 23 is supported by the exhaust pipe downstream
portion 15a, is increased. Also, the secondary air supply pipe
23 extends through the second partition 58 to be supported by
the second partition 58. Thereby, an exhaust gas purifying'
apparatus 201 is realized, which prevents the secondary air
supply pipe 23 from fluctuating in the muffler 30 and is excellent
in durability.
As shown in Figs . 7 and 8, the first partition 57 is provided
between the end 15i of the exhaust pipe downstream portion 15a,
through which exhaust gases are discharged into the primary
expansion chamber 50, and a connection, at which the secondary
air supply pipe 23 is connected to the exhaust pipe downstream
portion 15a. Thereby, the first partition 57 functions as a
flow inhibiting member that inhibits exhaust gases, which are
- 27 -

discharged from the end 15i of the exhaust pipe downst ream portion
15a, from being jetted directly toward the secondary air supply
pipe 23.
That is, the first partition 57 shields a region from the
end 15i of the exhaust pipe downstream portion 15a to a side
of the secondary air supply pipe 23 accommodated in the muffler
30 in all directions. According to the embodiment, the end
15i of the exhaust pipe downstream portion 15a is arranged in
the primary expansion chamber 50. Also, as described above,
the secondary air supply pipe 23 is arranged in the expansion
cnamber, which is different therefrom, that is, the secondary
expansion chamber 51 and the third expansion chamber 52 to be
connected to the exhaust pipe downstream portion 15a in the
secondary expansion chamber 51. The edge 57 ' of the first
partition 57, which separates the primary expansion chamber
50 and the secondary expansion chamber 51 from each other, is
joined to the inner peripheral surface of the hollow drum 32
by welding. Therefore, the first partition 57 serves as a barrier,
exhaust gases are not jetted directly toward the secondary air
supply pipe 23 but flow through the first pipe 56, and eXhaust
gases having expanded in the secondary expansion chamber 51
contact first with the secondary air supply pipe 23 . Therefore,
a secondary air flowing through the secondary air supply pipe
23 is not heated excessively, so that a decrease in amount of
oxygen in the secondary air is inhibited.
- 28 -

Also, exhaust gases having expanded in the secondary
expansion chamber 51 flow through the second pipe 54 to flow
into the third expansion chamber 52 to expand again. Exhaust
gases having expanded in the third expansion chamber 52 contact
with a portion 23i (an upstream portion of the secondary air
supply pipe) of the secondary air supply pipe 23, which is
positioned in the third expansion chamber 52 . Heat thus generated
is transmitted to the secondary air supply pipe portion 23i.
Exhaust gases having expanded in the third expansion chamber
52 are lowar in temperature than exhaust gases flowing through
the exhaust pipe downstream portion 15a, so that the secondary
air supply pipe portion 23i is also prevented from being heated
excessively.
Also, as described above, the secondary air supply pipe
23 extends through the secondary expansion chamber 51 and the
third expansion chamber 52 to be connected to the exhaust pipe
downstream portion l5a. Therefore, exhaust gases in the
respective expansion chambers raise an air, which flows through
the secondary air supply pipe 23, slightly in temperature as
compared with an outside air, arid so time elapsed until the
catalyst reaches its activation temperature is shortened.
Subsequently, a fourth embodiment of the invention will
be described in detail with reference to Fig. 9. Fig. 9 shows
an exhaust gas purifying apparatus 202 according to the fourth
embodiment of the invention, and is a cross sectional view mainly
- 29 -

showing a rear part of the exhaust gas purifying apparatus 202
in a vehicle traveling direction. Here, the same parts of the
exhaust gas purifying apparatus 202 according to the fourth
embodiment as those in the exhaust gas purifying apparatus 20
according to the third embodiment 201 are denoted by the same
reference numerals as those in the latter, and a detailed
explanation therefor is omitted below. In addition, piping
extending through partitions to enable flow of exhaust gases
between respective expansion chambers, a tail pipe, and a third
expansion chamber are omitted in Fig. 19.
According to the embodiment, a secondary air supply pipe
23 is connected to an exhaust pipe downstream portion 15a
positioned in a reverse direction (here, forward in the vehicle
traveling direction) from an end 15i of the exhaust pipe downs tream
portion 15a to a direction, in which exhaust gases discharged
from the end I5i are discharged. This , is described below in
detail. As shown in Fig. 9, an interior of a moffler 30 is
compartmented into a primary expansion chamber 50, a secondary
expansion chamber 51, and a third expansion chamber (not shown)
in order from the rear in the vehicle traveling direction by
a first partition 57 and a second partition (not shown). In
addition, according to the embodiment, the primary expansion
chamber 50 is formed to be larger in volume than that in the
embodiments in order to improve the noise eliminating performance
of the muffler 30.
- 30 -

The exhaust pipe downstream portion: 15a is extended in
the muffler 30 rearward from the front in the vehicle traveling
direction. An upstream catalyst 21 is arranged on an upstream
side in the exhaust pipe downstream portion 15a, a secondary
sir inflow port 15f is formed on a downstream side thereof,
and a downstream catalyst 22 is arranged on a downstream side
of the secondary air inflow port 15f. An end 15i of the exhaust
pipe downstream portion 15a Is arranged in the primary expansion
chamber 50 provided rearmost in the vehicle traveling direction.
Exhaust gases flowing through the exhaust pipe downstream portion
15a are discharged from the end 15i of the exhaust pipe downstream
portion 15a rearward (a direction indicated by an arrow G in
the figure) in the vehicle traveling direction to expand in
the primary expansion chamber 50 to be decreased in temperature.
The secondary air supply pipe 23 is spacent from the exhaust
pipe downstream portion 15a and arranged in parallel to the
exhaust pipe downstream portion 15a rearward from the front
in the vehicle traveling direction. The secondary air supply
pipe is extended through the third expansion chamber and the
secondary expansion chamber 51 to the primary expansion chamber
51. The secondary air supply pipe 23 is ment at a bent portion
23c positioned in the primary expansion chamber 50 to be directed
toward the exhaust pipe dawnstream portion 15a. The secondary
air supply pipe 23 is joined to a peripheral edge of the secondary
air inflow port I5f formed forwardly of the end 15i of the exhaust
- 31 -

pipe downstream portion 15a in the vehicle traveling direction,
and a reinforcement member 42. The secondary air supply pipe
23 is connected to the exhaust pipe downstream portion 15a
positioned in a reverse direction of the end 15i of the exhaust
pipe downstream portion 15a to a direction, in which exhaust
gases are discharged. Thereby, any portion of the secondary
air supply pipe 23 is positioned on an opposite side of exhaust
gases just after being discharged from the end 15i of the exhaust
pipe downstream portion 15a, with the end 15i therebetween.
Therefore, exhaust gases are discharged from the end I5i to
expand to be decreased in temperature to then contact first
with the secondary air supply pipe 23, Thereby, the secondary
air supply pipe 23 is prevented from being heated excessively.
In addition, the invention is not limited to the embodiments
but susceptible to various modifications. For example, with
the exhaust gas purifying apparatuses 20 to 202 described above,
the flow inhibiting member also functions; as an inner wall member
or a part it ion that compartments the expansion chambers. However,
an exclusive member that prevents exhaust gases discharged from
the end 15i of the exhaust pipe 15 from being jetted directly
toward the secondary air supply pipe 23, may be provided as
a flow inhibiting member in the muffler 30.
Also, with the exhaust gas purifying apparatuses 20 to
202 described above, the inner wall member or the partition
functioning as a flow inhibiting member is joined at an outer
- 32 -

peripheral edge thereof to an inner peripheral surface of the
muffler 30 to be supported thereby. However, a method of
supporting a flow inhibiting member is not limited thereto.
For example, a flow inhibiting member may be supported by a
part of the inner peripheral surface of the muffler 30, the
exhaust pipe downstream portion 15a, or piping, which enables
flow of exhaust gases between the respective expansion chambers.
- 33 -

What_Is claimed is:
WE CLAIM
1. An exhaust gas purifying apparatus comprising:
an exhaust pipe connected to an engine;
a catalyst arranged in the exhaust pipe;
a secondary air supply pipe connected to the exhaust pipe
on an upstream side of a position in which the catalyst is arranged;
and
a muffler that accommodates a connection of the secondary
air supply pipe and the exhaust pipe and an end of the exhaust
pipe, through which exhaust gases are discharged,
wherein the muffler comprises a flow inhibiting member
provided between the end or the exhaust pipe and the connection
to inhibit flow of exhaust gases.
2. An exhaust gas purifying apparatus comprising:
an exhaust pipe connected. to an engine;
a catalyst arranged in the exhaust pipe;
a secondary air supply pipe connected to the exhaust pipe
on an upstream side of a position in which the catalyst is arranged;
and
a mufflex that accommodates a connection of the secondary
air supply pipe and the exhaust pipe and an end of the exhaust
pipe, through which exhaust gases are discharged,
wherein the muffler comprises a flow inhibiting member
provided between the end of the exhaust pipe and that portion
- 34 -

of the secondary air supply pipe, which is accommodated in the
muffler, to inhibit flow of exhaust gases.
3. The exhaust gas purifying apparatus as claimed in. claim
1 or 2, wherein at least a part of an outer wall of the muffler
is double-structured to have an inner wall member and an outer
wall member,
the secondary air supply pipe extends between the inner
wall member and the outer wall member to be introduced into
the muffler, and
the flow inhibiting member comprises the inner wall member.
4. The exhaust gas purifying apparatus as claimed in claim
3, wherein the muffler comprises a hollow drum and a lid member
joined to an opening of the hollow drhm, and
the lid member is double-structured to have an inner wall
member and an outer wall member.
5. The exhaust gas purifying apparatus as claimed in claim
1 or 2, wherein the muffler comprises therein a plurality of
expansion chambers, and
the flow inhibiting member comprises a partition for
separation of the expansion chambers of the muffler.
6. An exhaust gas purifying apparatus comprising:
- 35 -

an exhaust pipe connected to an engine;
a catalyst arranged in the exhaust pipe;
a secondary air supply pipe connected to the exhaust pipe
on an upstream side of a position in which the catalyst is arranged;
and
a muffler that accommodates a connection of the secondary
air supply pipe and the exhaust pipe and an end of the exhaust
pipe, through which exhaust gases are discharged,.
wherein that portion of the secondary air supply pipe,
which is accommodated in the muffler, is arranged in a region
except that spatial region, into which exhaust gases discharged
from the end of the exhaust pipe are jetted directly.
7. The exhaust gas purifying apparatus as claimed in claim
6. wherein the exhaust pipe comprises a straight pipe portion,
from an end of which exhaust gases are discharged,
the muff1er accommodates the endof the straight pipe portion,
and
the secondary air supply pipe is provided so as to be clean
of its intersection of a spatial region in the muffler which
extends in a direction of extension of the straight pipe portion
from the end of the straight pipe portion.
8. The exhaust gas purifying apparatus as claimed in claim
6, wherein the secondary air supply pipe is arranged on a side
- 36 -

of the end of the exhaust pipe in a reverse direction to a direction
in which exhaust gases discharged from the end are discharged.
9. A saddle-ride type vehicle comprising the exhaust gas
purifying apparatus as claimed in any one of claims 1 to 8.
Dated this 17th day of MARCH 2006.

- 37 -

Documents:

00218-kol-2006-claims.pdf

00218-kol-2006-description complete.pdf

00218-kol-2006-drawings.pdf

00218-kol-2006-form 1.pdf

00218-kol-2006-form 2.pdf

00218-kol-2006-form 3.pdf

00218-kol-2006-form 5.pdf

00218-kol-2006-gpa.pdf

218-KOL-2006-(14-03-2012)-CORRESPONDENCE.pdf

218-KOL-2006-(14-03-2012)-PA.pdf

218-KOL-2006-(27-01-2012)-CORRESPONDENCE.pdf

218-KOL-2006-(27-01-2012)-FORM 27.pdf

218-KOL-2006-(27-01-2012)-PA.pdf

218-KOL-2006-ABSTRACT.pdf

218-KOL-2006-AMANDED CLAIMS.pdf

218-KOL-2006-AMANDED PAGES OF SPECIFICATION.pdf

218-KOL-2006-CANCELLED PAGES.pdf

218-KOL-2006-CLAIMS 1.1.pdf

218-KOL-2006-CORRESPONDENCE 1.1.pdf

218-kol-2006-correspondence-1.3.pdf

218-KOL-2006-CORRESPONDENCE.pdf

218-KOL-2006-DESCRIPTION (COMPLETE) 1.1.pdf

218-KOL-2006-DESCRIPTION (COMPLETE) 1.2.pdf

218-KOL-2006-DESCRIPTION (COMPLETE).pdf

218-KOL-2006-DRAWINGS 1.1.pdf

218-KOL-2006-DRAWINGS 1.2.pdf

218-KOL-2006-DRAWINGS.pdf

218-KOL-2006-EXAMINATION REPORT REPLY RECIEVED 1.1.pdf

218-kol-2006-examination report-1.3.pdf

218-KOL-2006-FORM 1 1.1.pdf

218-KOL-2006-FORM 1 1.2.pdf

218-KOL-2006-FORM 1.pdf

218-kol-2006-form 18.pdf

218-KOL-2006-FORM 2 1.1.pdf

218-KOL-2006-FORM 2 1.2.pdf

218-KOL-2006-FORM 2.pdf

218-KOL-2006-FORM 3 1.1.pdf

218-kol-2006-form 3-1.3.pdf

218-KOL-2006-FORM 3.pdf

218-kol-2006-form 5-1.3.pdf

218-kol-2006-gpa.pdf

218-kol-2006-granted-abstract.pdf

218-kol-2006-granted-claims.pdf

218-kol-2006-granted-description (complete).pdf

218-kol-2006-granted-drawings.pdf

218-kol-2006-granted-form 1.pdf

218-kol-2006-granted-form 2.pdf

218-kol-2006-granted-letter patent.pdf

218-kol-2006-granted-specification.pdf

218-KOL-2006-OTHERS 1.2.pdf

218-KOL-2006-OTHERS 1.3.pdf

218-KOL-2006-OTHERS DOCUMENTS 1.1.pdf

218-kol-2006-others-1.4.pdf

218-KOL-2006-OTHERS.pdf

218-KOL-2006-PETITION UNDER RULE 137-1.1.pdf

218-KOL-2006-PETITION UNDER RULE 137.pdf

218-kol-2006-reply to examination report-1.1.pdf

218-KOL-2006-REPLY TO EXAMINATION REPORT.pdf


Patent Number 244451
Indian Patent Application Number 218/KOL/2006
PG Journal Number 50/2010
Publication Date 10-Dec-2010
Grant Date 07-Dec-2010
Date of Filing 17-Mar-2006
Name of Patentee YAMAHA HATSUDOKI KABUSHIKI KAISHA
Applicant Address 2500 SHINGAI, IWATA-SHI, SHIZUOKA 438-8501 JAPAN, AJAPANESE COMPANY
Inventors:
# Inventor's Name Inventor's Address
1 HIDEHIRO NISHIMURA C/O. YAMAHA HATSUDOKI KABUSHIKI KAISHA, 2500 SHINGAI, IWATA-SHI, SHIZUOKA 438-8501 JAPAN
2 YUUJI KANEDA C/O. YAMAHA HATSUDOKI KABUSHIKI KAISHA, 2500 SHINGAI, IWATA-SHI, SHIZUOKA 438-8501 JAPAN
3 MICHIHIKO ENDOU C/O. YAMAHA HATSUDOKI KABUSHIKI KAISHA, 2500 SHINGAI, IWATA-SHI, SHIZUOKA 438-8501 JAPAN
4 OSAMU TAKII C/O. YAMAHA HATSUDOKI KABUSHIKI KAISHA, 2500 SHINGAI, IWATA-SHI, SHIZUOKA 438-8501 JAPAN
PCT International Classification Number B01D 50/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2006-045870 2006-02-22 Japan
2 2005-080688 2005-03-18 Japan