Title of Invention	AN INTAKE ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE AND A METHOD FOR FORMING A RESONATOR WITH THE INTAKE ASSEMBLY
Abstract	An intake assembly, such as a supercharger assembly, is provided for an internal combustion engine. The intake assembly includes a housing having a wall defining an inlet passage through which intake air enters the intake assembly. A plurality of stiffening ribs is provided on the wall opposite the inlet passage and at least partially defines at least one cavity. A plate is mounted to the wall of the housing and further defines the at least one cavity. The wall defines at least one orifice configured to provide communication between the inlet passage and the at least one cavity. The at least one cavity and the at least one orifice cooperate to form at least one resonator. A method of forming the intake assembly having integral resonators is also provided.

Title of Invention

AN INTAKE ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE AND A METHOD FOR FORMING A RESONATOR WITH THE INTAKE ASSEMBLY

Abstract

An intake assembly, such as a supercharger assembly, is provided for an internal combustion engine. The intake assembly includes a housing having a wall defining an inlet passage through which intake air enters the intake assembly. A plurality of stiffening ribs is provided on the wall opposite the inlet passage and at least partially defines at least one cavity. A plate is mounted to the wall of the housing and further defines the at least one cavity. The wall defines at least one orifice configured to provide communication between the inlet passage and the at least one cavity. The at least one cavity and the at least one orifice cooperate to form at least one resonator. A method of forming the intake assembly having integral resonators is also provided.

Full Text	GP-309101-PTE-JK 1 INTAKE ASSEMBLY WITH INTEGRAL RESONATORS TECHNICAL FIELD [0001] The present invention relates to an intake assembly incorporating a supercharger having integral resonators formed on an inlet side of a supercharger housing. BACKGROUND OF THE INVENTION [0002] Various methods may be employed to reduce the intake noise of an internal combustion engine. One method is to use a Helmholtz resonator on an intake air pipe configured to communicate intake air to the internal combustion engine. The intake air pipe is typically disposed upstream from an intake manifold and is configured to communicate intake air to the intake manifold of the internal combustion engine. A Helmholtz resonator includes a resonance volume or chamber having a small opening, typically referred to as a neck. The neck is operable to enable communication between the resonance chamber and the intake air pipe. Sound waves generated by components within the internal combustion engine travel along the intake air pipe where their acoustic pressure impinges on the neck. This acoustic pressure excites a mass of air within the neck. The acoustic pressure within the resonance chamber reacts against the air mass within the neck and produces an out-of-phase acoustic pressure at the intake air pipe to cause cancellation of intake noise at the resonant frequency. In this way, some of the engine noise is eliminated as the out-of-phase acoustic pressures in the intake air pipe cancel each other. [0003] The frequency at which the attenuating acoustic pressures reach their maximum amplitude is known as the resonant frequency. A number of parameters determine the resonant frequency and bandwidth of a Helmholtz resonator, including the volume of the resonance chamber and the length and cross sectional area of the neck. GP-309101-PTE-JK 2 SUMMARY OF THE INVENTION [0004] An intake assembly, such as a supercharger assembly, is provided for an internal combustion engine. The intake assembly includes a housing having a wall defining an inlet passage through which intake air enters the intake assembly. A plurality of stiffening ribs are provided on the wall opposite the inlet passage and at least partially define at least one cavity. A plate is mounted to the wall of the housing and further defines the at least one cavity. The wall defines at least one orifice configured to provide communication between the inlet passage and the at least one cavity. The at least one cavity and the at least one orifice cooperate to form at least one resonator. Preferably, the plate is sealingly engaged with the wall of the housing, such as by a gasket member, sealant, etc. [0005] A method of forming integral resonators within the intake assembly is also provided including the steps of: A) forming the orifices in the housing operable to provide communication between the inlet passage and the cavities; and B) mounting the plate to the housing to further define the cavities. As mentioned hereinabove, the orifices and the cavities cooperate to form the resonator. The method further includes the step of sealing the plate with respect to the housing. [0006] The above features and advantages and other features and advantages of the present invention are readily apparent from the following detailed description of the best modes for carrying out the invention when taken in connection with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0007] Figure 1 is a perspective view of an intake assembly or supercharger assembly; [0008] Figure 2 is a bottom view of the supercharger assembly of Figure 1 illustrating stiffening ribs provided on a housing and partially defining a plurality of cavities or volumes; GP-309101-PTE-JK 3 [0009] Figure 3 is a bottom view of the supercharger assembly of Figures 1 and 2 illustrating a plate mounted to the housing and further defining the plurality of volumes; and [0010] Figure 4 is a cross sectional view of the supercharger assembly of Figure 3, taken along line 4-4, illustrating integral resonators. DESCRIPTION OF THE PREFERRED EMBODIMENTS [0011] Referring to the drawings wherein like reference numbers correspond to like or similar components throughout the several figures, there is shown in Figure 1 a perspective view of an intake assembly or supercharger 10 for an internal combustion engine, not shown. Although the intake assembly is illustrated in Figure 1 as a supercharger 10; those skilled in the art will recognize that the intake assembly may have other forms, such as an intake manifold, while remaining within the scope of that which is claimed. The supercharger assembly 10, as shown in Figure 1, is a roots-type or screw-type supercharger and includes a housing 12 having a wall 14 that at least partially defines an inlet passage 16. The inlet passage 16 is configured to communicate intake air, indicted by arrow 18, into the supercharger assembly 10. The housing 12 further defines a rotor cavity 20 within which a first and second rotor 22 and 24, respectively are rotatably contained. The first and second rotors 22 and 24 are counter-rotating with respect to each other and cooperate to transfer volumes of intake air 18 as it passes through the rotor cavity 20 to an exit port 26 defined by the housing 12 where it is subsequently introduced to the internal combustion engine, not shown. [0012] A plurality of stiffening ribs 28 are provided on the housing 12 to prevent distortion of the housing 12 during operation of the supercharger assembly 10. The stiffening ribs 28 are preferably arranged in a generally cross-wise arrangement to form a waffle pattern. Referring now to Figure 2, there is shown a bottom view of the supercharger assembly 10. The stiffening ribs 28 cooperate to partially define a plurality of cavities or volumes 30 on the side of the wall 14 opposite the inlet passage 16. A plurality of orifices 32 are defined by the wall 14 and are configured to allow communication between the cavities 30 and the inlet passage 16. Referring to Figure 3, GP-309101-PTE-JK 4 there is shown a bottom view of the intake assembly 12 having a plate 34 mounted to the housing 12 by a plurality of fasteners 35. Referring now to Figure 4, there is shown a cross sectional view of the housing 12 taken along line 4-4 of Figure 3. The plate 34 further defines the cavities 30. The plate 34 is sealed with respect to the housing by a gasket member 36. Alternately, a sealant, such a room temperature vulcanizing (RTV) sealant, may be used in lieu of the gasket member 36. Since a vacuum is typically present within the inlet passage 16 during operation of the supercharger assembly 10, it is beneficial to seal the plate 34 to prevent the unwanted entry of air into the cavities 30 and the inlet passage 16. The plate 34 is preferably formed from a material possessing sufficient structural rigidity to avoid deflection. Additionally, the plate 34 may further tend to increase the rigidity of the wall 14 of the housing 12. [0013] As illustrated in Figure 4, the cavities 30 and orifices 32 cooperate to form resonators 38, such as a Helmholtz resonator. The cavities 30 form resonance chambers, while the orifices 32 form necks. The frequency at which the resonators 38 attenuate may be varied by varying the volume of the cavities 30 and/or the volume of the orifices 32. Multiple frequencies may be attenuated by providing cavities 30 and orifices 32 of varying dimensions or geometries. Additionally, multiple orifices 32 may be provided in communication with each of the cavities 30, as shown in Figure 4. The resonator 38 may also be provided with orifices 32 and cavities 30 having a constant cross sectional area such that the resonator 38 forms a quarter wave resonator. [0014] By positioning the resonators 38 near the noise source, i.e. the supercharger assembly 10, the pressure pulses acting on the housing 12 may be reduced resulting in less radiation of noise than with noise attenuation devices mounted further upstream of the inlet passage 16 of the supercharger assembly 10. Additionally, the flow of intake air 18 through the intake passage 16 may improve by employing the resonators 38 as a result of the cancellation of pressure pulses within the inlet passage 16 of the supercharger assembly 10. [0015] A method of forming integral resonators 38 within the supercharger assembly 10 is also provided including the steps of: A) forming the orifices 32 in the housing 12 operable to provide communication between the inlet passage 16 and the GP-309101-PTE-JK 5 cavities 30; and B) mounting the plate 34 to the housing 12 to further define the cavities. As mentioned hereinabove, the orifices 32 and the cavities 30 cooperate to form the resonator 38. The method further includes the step of sealing the plate 34 with respect to the housing 12. The orifices 32 may be formed by machining the housing 12 such as by drilling or reaming. Alternately, if the housing 12 is a cast component, the orifices 32 may be formed by pin-like mold features, not shown, disposed within a mold, not shown, and used to form the housing 12. The pin-like mold features may form closed ended bores, such that the orifices 32 are formed by the removal of material from the resulting closed ended bores during the machining of the inlet passage 16. [0016] While the best modes for carrying out the invention have been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the invention within the scope of the appended claims. GP-309101-PTE-JK 6 CLAIMS 1. An intake assembly for an internal combustion engine comprising: a housing having a wall defining an inlet passage through which intake air enters the intake assembly; a plurality of stiffening ribs provided on said wall opposite said inlet passage and at least partially defining at least one cavity; a plate mounted to said wall of said housing and further defining said at least one cavity; wherein said wall defines at least one orifice configured to provide communication between said inlet passage and said at least one cavity; and wherein said at least one cavity and said at least one orifice cooperate to form at least one resonator. 2. The intake assembly of claim 1, wherein said plate is configured to sealingly engage said wall of said housing. 3. The intake assembly of claim 1, wherein the intake assembly is a supercharger and wherein said housing defines a rotor cavity, said supercharger assembly having a plurality of counter-rotating rotors disposed within said rotor cavity. 4. The intake assembly of claim 1, wherein said plurality of stiffening ribs are arranged generally cross-wise in a waffle pattern. 5. The intake assembly of claim 1, further comprising a gasket member disposed between said plate and said housing and operable to seal said plate with respect to said housing. 6. A supercharger assembly for an internal combustion engine comprising: GP-309101-PTE-JK 7 a housing having a wall defining an inlet passage through which intake air enters the supercharger assembly; a plurality of stiffening ribs provided on said wall opposite said inlet passage and at least partially defining at least one cavity; a rotor cavity defined by said housing and sufficiently configured to contain a plurality of counter rotating rotors operable to pressurized said intake air; a plate mounted to said wall of said housing and further defining said at least one cavity; wherein said wall defines at least one orifice configured to provide communication between said inlet passage and said at least one cavity; and wherein said at least one cavity and said at least one orifice cooperate to form at least one resonator. 7. The supercharger assembly of claim 6, wherein said plate is configured to sealingly engage said wall of said housing. 8. The supercharger assembly of claim 6, wherein said plurality of stiffening ribs are arranged generally cross-wise in a waffle pattern. 9. The supercharger assembly of claim 6, further comprising a gasket member disposed between said plate and said housing and operable to seal said plate with respect to said housing. 10. A method of forming at least one resonator within an intake assembly including a housing having a wall with a plurality of stiffening ribs formed thereon, wherein the plurality of stiffening ribs on the wall of the housing partially define at least one cavity on the wall opposite an inlet passage defined by the housing through which intake air passes, the method comprising: forming at least one orifice in the housing, wherein said orifice operable to provide communication between the inlet passage and the at least one cavity; GP-309101-PTE-JK 8 mounting a plate to the housing to further define the at least one cavity; and wherein the at least one orifice and the at least one cavity cooperate to form at least one resonator. 11. The method of claim 11, further comprising sealing said plate to the housing. 12. The method of claim 11, wherein the housing is formed by a casting operation and wherein forming said at least one orifice is performed by at least one of a machining operation and said casting operation. 13. The method of claim 11, wherein the plurality of stiffening ribs on the wall of the housing are arranged in a generally cross-wise arrangement to form a waffle pattern. 14. The method of claim 11, wherein the intake assembly is a supercharger assembly and wherein the housing defines a rotor cavity, said supercharger assembly having a plurality of counter-rotating rotors disposed within said rotor cavity. An intake assembly, such as a supercharger assembly, is provided for an internal combustion engine. The intake assembly includes a housing having a wall defining an inlet passage through which intake air enters the intake assembly. A plurality of stiffening ribs is provided on the wall opposite the inlet passage and at least partially defines at least one cavity. A plate is mounted to the wall of the housing and further defines the at least one cavity. The wall defines at least one orifice configured to provide communication between the inlet passage and the at least one cavity. The at least one cavity and the at least one orifice cooperate to form at least one resonator. A method of forming the intake assembly having integral resonators is also provided.

Full Text

GP-309101-PTE-JK
1
INTAKE ASSEMBLY WITH INTEGRAL RESONATORS
TECHNICAL FIELD
[0001] The present invention relates to an intake assembly incorporating a
supercharger having integral resonators formed on an inlet side of a supercharger
housing.
BACKGROUND OF THE INVENTION
[0002] Various methods may be employed to reduce the intake noise of an
internal combustion engine. One method is to use a Helmholtz resonator on an intake
air pipe configured to communicate intake air to the internal combustion engine. The
intake air pipe is typically disposed upstream from an intake manifold and is configured
to communicate intake air to the intake manifold of the internal combustion engine. A
Helmholtz resonator includes a resonance volume or chamber having a small opening,
typically referred to as a neck. The neck is operable to enable communication between
the resonance chamber and the intake air pipe. Sound waves generated by components
within the internal combustion engine travel along the intake air pipe where their
acoustic pressure impinges on the neck. This acoustic pressure excites a mass of air
within the neck. The acoustic pressure within the resonance chamber reacts against the
air mass within the neck and produces an out-of-phase acoustic pressure at the intake
air pipe to cause cancellation of intake noise at the resonant frequency. In this way,
some of the engine noise is eliminated as the out-of-phase acoustic pressures in the
intake air pipe cancel each other.
[0003] The frequency at which the attenuating acoustic pressures reach their
maximum amplitude is known as the resonant frequency. A number of parameters
determine the resonant frequency and bandwidth of a Helmholtz resonator, including
the volume of the resonance chamber and the length and cross sectional area of the
neck.

GP-309101-PTE-JK
2
SUMMARY OF THE INVENTION
[0004] An intake assembly, such as a supercharger assembly, is provided for an
internal combustion engine. The intake assembly includes a housing having a wall
defining an inlet passage through which intake air enters the intake assembly. A
plurality of stiffening ribs are provided on the wall opposite the inlet passage and at
least partially define at least one cavity. A plate is mounted to the wall of the housing
and further defines the at least one cavity. The wall defines at least one orifice
configured to provide communication between the inlet passage and the at least one
cavity. The at least one cavity and the at least one orifice cooperate to form at least one
resonator. Preferably, the plate is sealingly engaged with the wall of the housing, such
as by a gasket member, sealant, etc.
[0005] A method of forming integral resonators within the intake assembly is
also provided including the steps of: A) forming the orifices in the housing operable to
provide communication between the inlet passage and the cavities; and B) mounting the
plate to the housing to further define the cavities. As mentioned hereinabove, the
orifices and the cavities cooperate to form the resonator. The method further includes
the step of sealing the plate with respect to the housing.
[0006] The above features and advantages and other features and advantages of
the present invention are readily apparent from the following detailed description of the
best modes for carrying out the invention when taken in connection with the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 is a perspective view of an intake assembly or supercharger
assembly;
[0008] Figure 2 is a bottom view of the supercharger assembly of Figure 1
illustrating stiffening ribs provided on a housing and partially defining a plurality of
cavities or volumes;

GP-309101-PTE-JK
3
[0009] Figure 3 is a bottom view of the supercharger assembly of Figures 1 and 2
illustrating a plate mounted to the housing and further defining the plurality of volumes;
and
[0010] Figure 4 is a cross sectional view of the supercharger assembly of Figure
3, taken along line 4-4, illustrating integral resonators.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Referring to the drawings wherein like reference numbers correspond to
like or similar components throughout the several figures, there is shown in Figure 1 a
perspective view of an intake assembly or supercharger 10 for an internal combustion
engine, not shown. Although the intake assembly is illustrated in Figure 1 as a
supercharger 10; those skilled in the art will recognize that the intake assembly may have
other forms, such as an intake manifold, while remaining within the scope of that which
is claimed. The supercharger assembly 10, as shown in Figure 1, is a roots-type or
screw-type supercharger and includes a housing 12 having a wall 14 that at least partially
defines an inlet passage 16. The inlet passage 16 is configured to communicate intake
air, indicted by arrow 18, into the supercharger assembly 10. The housing 12 further
defines a rotor cavity 20 within which a first and second rotor 22 and 24, respectively are
rotatably contained. The first and second rotors 22 and 24 are counter-rotating with
respect to each other and cooperate to transfer volumes of intake air 18 as it passes
through the rotor cavity 20 to an exit port 26 defined by the housing 12 where it is
subsequently introduced to the internal combustion engine, not shown.
[0012] A plurality of stiffening ribs 28 are provided on the housing 12 to prevent
distortion of the housing 12 during operation of the supercharger assembly 10. The
stiffening ribs 28 are preferably arranged in a generally cross-wise arrangement to form a
waffle pattern. Referring now to Figure 2, there is shown a bottom view of the
supercharger assembly 10. The stiffening ribs 28 cooperate to partially define a plurality
of cavities or volumes 30 on the side of the wall 14 opposite the inlet passage 16. A
plurality of orifices 32 are defined by the wall 14 and are configured to allow
communication between the cavities 30 and the inlet passage 16. Referring to Figure 3,

GP-309101-PTE-JK
4
there is shown a bottom view of the intake assembly 12 having a plate 34 mounted to the
housing 12 by a plurality of fasteners 35. Referring now to Figure 4, there is shown a
cross sectional view of the housing 12 taken along line 4-4 of Figure 3. The plate 34
further defines the cavities 30. The plate 34 is sealed with respect to the housing by a
gasket member 36. Alternately, a sealant, such a room temperature vulcanizing (RTV)
sealant, may be used in lieu of the gasket member 36. Since a vacuum is typically
present within the inlet passage 16 during operation of the supercharger assembly 10, it is
beneficial to seal the plate 34 to prevent the unwanted entry of air into the cavities 30 and
the inlet passage 16. The plate 34 is preferably formed from a material possessing
sufficient structural rigidity to avoid deflection. Additionally, the plate 34 may further
tend to increase the rigidity of the wall 14 of the housing 12.
[0013] As illustrated in Figure 4, the cavities 30 and orifices 32 cooperate to form
resonators 38, such as a Helmholtz resonator. The cavities 30 form resonance chambers,
while the orifices 32 form necks. The frequency at which the resonators 38 attenuate
may be varied by varying the volume of the cavities 30 and/or the volume of the orifices
32. Multiple frequencies may be attenuated by providing cavities 30 and orifices 32 of
varying dimensions or geometries. Additionally, multiple orifices 32 may be provided in
communication with each of the cavities 30, as shown in Figure 4. The resonator 38 may
also be provided with orifices 32 and cavities 30 having a constant cross sectional area
such that the resonator 38 forms a quarter wave resonator.
[0014] By positioning the resonators 38 near the noise source, i.e. the
supercharger assembly 10, the pressure pulses acting on the housing 12 may be reduced
resulting in less radiation of noise than with noise attenuation devices mounted further
upstream of the inlet passage 16 of the supercharger assembly 10. Additionally, the
flow of intake air 18 through the intake passage 16 may improve by employing the
resonators 38 as a result of the cancellation of pressure pulses within the inlet passage
16 of the supercharger assembly 10.
[0015] A method of forming integral resonators 38 within the supercharger
assembly 10 is also provided including the steps of: A) forming the orifices 32 in the
housing 12 operable to provide communication between the inlet passage 16 and the

GP-309101-PTE-JK
5
cavities 30; and B) mounting the plate 34 to the housing 12 to further define the
cavities. As mentioned hereinabove, the orifices 32 and the cavities 30 cooperate to
form the resonator 38. The method further includes the step of sealing the plate 34
with respect to the housing 12. The orifices 32 may be formed by machining the
housing 12 such as by drilling or reaming. Alternately, if the housing 12 is a cast
component, the orifices 32 may be formed by pin-like mold features, not shown,
disposed within a mold, not shown, and used to form the housing 12. The pin-like
mold features may form closed ended bores, such that the orifices 32 are formed by the
removal of material from the resulting closed ended bores during the machining of the
inlet passage 16.
[0016] While the best modes for carrying out the invention have been described
in detail, those familiar with the art to which this invention relates will recognize various
alternative designs and embodiments for practicing the invention within the scope of the
appended claims.

GP-309101-PTE-JK
6
CLAIMS
1. An intake assembly for an internal combustion engine comprising:
a housing having a wall defining an inlet passage through which
intake air enters the intake assembly;
a plurality of stiffening ribs provided on said wall opposite said
inlet passage and at least partially defining at least one cavity;
a plate mounted to said wall of said housing and further defining
said at least one cavity;
wherein said wall defines at least one orifice configured to provide
communication between said inlet passage and said at least one cavity; and
wherein said at least one cavity and said at least one orifice
cooperate to form at least one resonator.
2. The intake assembly of claim 1, wherein said plate is configured to
sealingly engage said wall of said housing.
3. The intake assembly of claim 1, wherein the intake assembly is a
supercharger and wherein said housing defines a rotor cavity, said supercharger assembly
having a plurality of counter-rotating rotors disposed within said rotor cavity.
4. The intake assembly of claim 1, wherein said plurality of stiffening
ribs are arranged generally cross-wise in a waffle pattern.
5. The intake assembly of claim 1, further comprising a gasket
member disposed between said plate and said housing and operable to seal said plate with
respect to said housing.
6. A supercharger assembly for an internal combustion engine
comprising:

GP-309101-PTE-JK
7
a housing having a wall defining an inlet passage through which
intake air enters the supercharger assembly;
a plurality of stiffening ribs provided on said wall opposite said
inlet passage and at least partially defining at least one cavity;
a rotor cavity defined by said housing and sufficiently configured
to contain a plurality of counter rotating rotors operable to pressurized said intake air;
a plate mounted to said wall of said housing and further defining
said at least one cavity;
wherein said wall defines at least one orifice configured to provide
communication between said inlet passage and said at least one cavity; and
wherein said at least one cavity and said at least one orifice
cooperate to form at least one resonator.
7. The supercharger assembly of claim 6, wherein said plate is
configured to sealingly engage said wall of said housing.
8. The supercharger assembly of claim 6, wherein said plurality of
stiffening ribs are arranged generally cross-wise in a waffle pattern.
9. The supercharger assembly of claim 6, further comprising a gasket
member disposed between said plate and said housing and operable to seal said plate with
respect to said housing.
10. A method of forming at least one resonator within an intake
assembly including a housing having a wall with a plurality of stiffening ribs formed
thereon, wherein the plurality of stiffening ribs on the wall of the housing partially define
at least one cavity on the wall opposite an inlet passage defined by the housing through
which intake air passes, the method comprising:
forming at least one orifice in the housing, wherein said orifice
operable to provide communication between the inlet passage and the at least one cavity;

GP-309101-PTE-JK
8
mounting a plate to the housing to further define the at least one
cavity; and
wherein the at least one orifice and the at least one cavity
cooperate to form at least one resonator.
11. The method of claim 11, further comprising sealing said plate to
the housing.
12. The method of claim 11, wherein the housing is formed by a
casting operation and wherein forming said at least one orifice is performed by at least
one of a machining operation and said casting operation.
13. The method of claim 11, wherein the plurality of stiffening ribs on
the wall of the housing are arranged in a generally cross-wise arrangement to form a
waffle pattern.
14. The method of claim 11, wherein the intake assembly is a
supercharger assembly and wherein the housing defines a rotor cavity, said supercharger
assembly having a plurality of counter-rotating rotors disposed within said rotor cavity.

An intake assembly, such as a supercharger assembly, is provided for an
internal combustion engine. The intake assembly includes a housing having a wall
defining an inlet passage through which intake air enters the intake assembly. A plurality
of stiffening ribs is provided on the wall opposite the inlet passage and at least partially
defines at least one cavity. A plate is mounted to the wall of the housing and further
defines the at least one cavity. The wall defines at least one orifice configured to provide
communication between the inlet passage and the at least one cavity. The at least one
cavity and the at least one orifice cooperate to form at least one resonator. A method of
forming the intake assembly having integral resonators is also provided.

Documents:

01570-kol-2007-abstract.pdf

01570-kol-2007-assignment.pdf

01570-kol-2007-claims.pdf

01570-kol-2007-correspondence others 1.1.pdf

01570-kol-2007-correspondence others.pdf

01570-kol-2007-description complete.pdf

01570-kol-2007-drawings.pdf

01570-kol-2007-form 1.pdf

01570-kol-2007-form 2.pdf

01570-kol-2007-form 3.pdf

01570-kol-2007-form 5.pdf

01570-kol-2007-priority document.pdf

1570-KOL-2007-(18-06-2012)-ABSTRACT.pdf

1570-KOL-2007-(18-06-2012)-CLAIMS.pdf

1570-KOL-2007-(18-06-2012)-CORRESPONDENCE.pdf

1570-KOL-2007-(18-06-2012)-DESCRIPTION (COMPLETE).pdf

1570-KOL-2007-(18-06-2012)-DRAWINGS.pdf

1570-KOL-2007-(18-06-2012)-FORM-1.pdf

1570-KOL-2007-(18-06-2012)-FORM-2.pdf

1570-KOL-2007-(18-06-2012)-FORM-3.pdf

1570-KOL-2007-(18-06-2012)-FORM-5.pdf

1570-KOL-2007-(18-06-2012)-OTHERS.pdf

1570-KOL-2007-(18-06-2012)-PETITION UNDER RULE 137.pdf

1570-KOL-2007-(26-09-2012)-CORRESPONDENCE.pdf

1570-KOL-2007-CORRESPONDENCE 1.1.pdf

1570-KOL-2007-CORRESPONDENCE OTHERS 1.2.pdf

1570-KOL-2007-CORRESPONDENCE OTHERS 1.3.pdf

1570-KOL-2007-EXAMINATION REPORT REPLY RECIEVED.PDF

1570-KOL-2007-FORM 18.pdf

1570-KOL-2007-OTHERS.pdf

1570-KOL-2007-PA.pdf

abstract-01570-kol-2007.jpg

« Previous Patent

Next Patent »

Patent Number

257919

Indian Patent Application Number

1570/KOL/2007

PG Journal Number

47/2013

Publication Date

22-Nov-2013

Grant Date

19-Nov-2013

Date of Filing

21-Nov-2007

Name of Patentee

GM GLOBAL TECHNOLOGY OPERATIONS, INC.

Applicant Address

300 GM RENAISSANCE CENTER, DETROIT, MICHIGAN

Inventors:

#	Inventor's Name	Inventor's Address
1	GREGORY P. PRIOR	551 OAKLAND AVENUE, BIRMINGHAM, MICHIGAN 48009
2	ROXANN M. BITTNER	2816 BAMLET ROAD, ROYAL OAK, MICHIGAN 48073

PCT International Classification Number

F02M35/10; F02B31/06; F02M35/10;H01P1/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	11/622481	2007-01-12	U.S.A.