Title of Invention

"A POLLUTION CONTROLE DEVICE FITTED TO THE TAIL PIPE OF A VEHICLE"

Abstract

"A pollution control device fitted to the exhaust tail pipe of an engine" This invention relates to a pollution control device fitted to the exhaust tail pipe of an engine characterized in that is insulated cover (3) having ion emitter (4) disposed within said insulated cover (3), said ion emitter (4) is connected to a power source to emit ions which consist in the formation of nascent oxygen which converts carbon monoxide in the exhaust stream to carbon dioxide in the flow path of the exhaust stream of said engine, said ion emitter (4) is disposed along the longitudinal axis or radially of tail pipe (1), a circuit having a switching member connected between said power source and ion emitter (4) to disconnect the ion emitter (4) in the event of a short circuit.

Full Text

FIELD OF INVENTION pfiJtW^ CenO^o e This invention relates to a^evice adajTrrrl IIE fitted to the exhaust tail pipe of an engine. The device of the present invention has a particular application with reference to a vehicle though not limited thereto. BACKGROUND OF THE INVENTION It is known to provide a silencer upstream and downstream of an exhaust pipe of a vehicle. It is also known to provide a catalytic converter, with an exhaust tail pipe so as to reduce the content of hazardous^ pollutants in the exhaust stream. OBJECTS OF THE INVENTION An object of this invention is to propose a device adapted to be held to the exhaust tail pipe of an engine or an extension of sa}d tail pipe so as to cause a reduction xin the level of hazardous pollutants/entrained in the exhaust stream. Another object of this invention is to propose a device adapted to be held to the exhaust tail pipe of an engine or an extension of said tail pipe which is efficient and simple in construction. : 2 : DESCRIPTION OF THE INVENTION , pJUoffW C*^ According to this invention there is provided a device nrHptrrl tn hr ffitted to the exhaust tail pipe of an engine characterized in that is insulated cover having ion emitter disposed within said insulated cover, -u, *^ said ion emitter is connected to a power source in JIT to.emit ions.in^n^P^V^^ -. Jjc/^->^ l,p*v4rVvy,rtjt^- ^-*i flow path of the exhaust stream of said engme^saiaion^miTO disposed along the longitudinal axis or radially of tail pipe, a circuit dfifcrbLt. having a switching member connected between said power source and ion emitter to disconnect the ion emitter in the event of a short circuit. Reference is made hereinafter to a vehicle. Such a reference has been made as a matter of convenience to exemplify an embodiment, but without intending to imply any limitation. Thus, such reference is also intended to include an engine. In accordance with this invention the device is adapted to be fitted or held to the tail pipe and after the silencer of a vehicle. A negative ion generating member is provided with said device. Preferably, a plurality of such generating members are provided with said device. In accordance with one embodiment, the ion generating member are disposed in a spaced relationship to each other, such members being : 3 : : 4 : disposed longitudinally and within the length of the tail pipe,, The generating members may comprise needles or sharp pointed members so as to cause a generation of negative ions. In accordance with another embodiment, i. on g en er a t i n g mem bers a re d i sposed rad i a 11 y to 5a i d pipe and within or outside thereto. The negative ion generating members are confiected to a power" source through a circuit comprising a high voltage amplifier which produces a.d.c. voltage of at least 5 KV„ The device may comprises a time delay switch operative in the presence of a short circuit. Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawings and wherein: Fig.. .1 shows a device adapted to be fitted to a tail pipe in accordance with one embodiment; Fi g,, 2 shows a device adapted to be fitted to a tail pipe in accordance with a second embodiment; "* _ . Afa&k cl^lA^ Of. JCL+JL F i g ,, 3 s hows the/ device, t h a.|- gap. . Referring to the drawings and with particular reference to fig. 1 the tail pipe 1 has the device 2 of s 5 : the present invention removably held thereto, by means of metal clamps 15. The device 2 specifically. comprises ian ioniser 4 disposed within the tail pipe 1. and at the outlet end 5,, Ionizer 4 is covered within an i n su 1 a t i. n g mem ber 3 prov i ded ex ter i or to tail p i pe .1., and adapted to hie connected to a power source through the circuit of fig 4. As shown in fig. 1 ionizer 4 has an e;-;posed surface 4a within tailpipe 1 and terminating i. n t o a B i. n q 1 e p o i. n t e d n e e d 1 e 4 b , T h e s i. n g 1 e p o i n t needle 4b discharges a cloud of ions within tail pipe 4. Such .ions meet the exhaust stream discharged from the engine and flows in the direction of the outlet of tail pipe i. Such ions assist in the formation of nascent oxygen which converts carbon monoxide in the exhaust stream to carbon dioxide. Further, such a nascent oxygen converts the hydrocarbons present in the exhaust stream into water and carbon dioxide. The part.iculat.es present in the exhaust. stream form a cluster and agglomerate into bigger particles and drop to the bottom of the tail pipe 1 and are drawn out by the moving gases. In accordance with the present invention, ionizer 4 is connected to a power source through a circuit having a voltage amplifier so as to produce a high d.c. voltage 19 of at least 5KV to the ionizer. The? presence of such a high voltage allows the production of hiqher levels of nascent oxygen. ; 6 : T h o u g h the t h e o r y \"\ a B bee n d e s c r i. b e d h e r e i n a b a v e , i t. is o n 1 y t :> e 1 i e v e d t h a t s u c h a the o r y applies to the blanket of ions meeting the exhaust 1 stream. However,, it is still uncertain as to whether such a theory is correct, though it is certain that such a device does provide a reduction of the pollutants e n t r' a i. vie d i n t h e e ;•: h a u s t g a s e s D f t h e t a i. 1 p i p e . Referring to fig. .1 , the pointed needle 4b has insulating washers 5 to prevent a contact of said needle or the exposed surface 4a with the inner surface of tai i pipe 1„ Fig. Ib is shows an embodiment of the exposed surface 4a within tail pipe .1... In accordance with such an embodiment,, a plurality of sharp edges is provided on a part or whole of the length of exposed surface 4a. Fi.q,, la shows only a single embodiment and where such sharp edges are provided by a screw 6 formation exposed surface 4 a. Fit:),, Ib shows yet another embodiment and where the sharp edges are provided by wrapping wires 7 on the exposed surface 4a. A plurality of such wires 7 disposed in a spaced relationship to each other are wound on exposed surface 4a. Fiqs. la and Ib are only exemplary illustrations of the constructional means for providing a plurality of sharp edqes,, Other constructional means for providing a plurality of sharp edges may be provided BO as to increase the emission of ions from device 2. Fiq. 2a illustrates yet another embodiment of the means for emission of ions and which comprises an outer cover" 8 of insulating material adapted to rest on the inner surface of the tail pipe. Cover 8 supports a continuous metal strip 9 extending along the 1onqitudinal axis of the tail pipe and has a p 1 u r a 1 i t y 0 f nee d 1 e s 10 p r a j e c 11. n g i. n the flow p a t h o f the exhaust gases., Metal strip S3 is adapted to be connected to a high voltage source. Fig., 2b shows yet another embodiment of the means for emitting a stream of ions into the flow path of the exhaust gases,, The means of fig. 2b comprises an outer cover 8 having a plurality of metal strips 11 disposed along the longitudinal axis of the tail pipe and supported on the inner surface of cover 8. Strips 11 are disposed in a parallel and spaced relationship to each other and adapted to be connected to a high voltage source,, Strips 11 have a plurality of needles 12 extending into the flow path of the exhaust gases. : 8 : Fig. 2C shows yet another embodiment of the means for emitting ions and comprises a cover 8 of insulating material and adapted to rest within the tailpipe,, A wire mesh 13 adapted to be connected to a high voltage source is supported on cover 8. Finally f.i.q.2d shows yet another embodiment and comprises an outer cover 8 of any suitable insulating material and adapted to be disposed within the tail pipe,, A plurality of separate wires or a single continuous wire 14 is supported on cover 8, said wire .14 disposed along the longitudinal axis of the tail pipe,, Wire 14 is adapted to be connected to a high v o 11 a q e s o u r <::: e> 'The plates of Figs. 2a and 2b and the wires of fig,. 2c and 2d and the emitter of Figs. 1., la and Ib are made of any suitable non corrosion conducting metal such as copper,, brass or stainless steel,, The ion emitting means of Figs. 1, la and 2a to 2d are disposed within the tailpipe of the vehicle. However,, the embodiment of Fig. 3 illustrates the device 2 disposed outward of tailpipe 1 and at the discharge is n d t. here o f ,, D e v i c e 2 s i m i. 1 a r • 1 y c o m p rises a n i n s u 1 a t i o n cover' 3 having a single or plurality of needles 4b : 9 : extending outwardly of cover 3,, said needles adapted to be connected to a high voltage source. Device 2 is held to tailpipe 1 through a clamps .1.5. Reference is now made to fig, 4 which illustrates the block diagram of the device 2. The circuit comprises a d „(:::„ power source 16, which may be a separate or the same power source of the vehicle, or the power generated from the generator of the vehicle or otherwise power source .1.6 is connected to a light emitting diode 17 through a fuse 18,, If required, a rectifier is provided in case the power source is a. c . Power source 16 supplies power to an oscillator 19 to convert the d „ c . supply into a high voltage a»c . The voltage from oscillator circuit 19 is steppted up by a high voltage circuit 20,, the stepped up voltage being applied to ionizer 21 and indicators 22 to indicate that ioniser 21 is connected to the power source and has a high voltage potential. A relay 23 is provided between l.e.d. indicator 17 and oscillator 19, said relay having a timer. Relay 23 disconnects ioniser 21 from power s o u r c e 16 i n t h e e v e n t o f a s h o r t c i. r c. u i t. S u c h a short circuit can occur due to various reasons such as moisture or water in tailpipe 1. Tailpipe .1. is earthed in any suitable manner. I CLAIM: 1. A pollution control device fitted to the exhaust tail pipe of an engine characterized in that is insulated cover (3) having ion emitter (4) disposed within said insulated cover (3), said ion emitter (4) is connected to a power source to emit ions which consist in the formation of nascent oxygen which converts carbon monoxide in the exhaust stream to carbon dioxide in the flow path of the exhaust stream of said engine, said ion emitter (4) is disposed along the longitudinal axis or radially of tail pipe (1), a circuit having a switching member connected between said power source and ion emitter (4) to disconnect the ion emitter (4) in the event of a short circuit. 2. A pollution control device fitted to the exhaust tail pipe of an engine substantially as herein described and illustrated.

Documents:

752-del-1997-abstract.pdf

752-del-1997-claims.pdf

752-del-1997-correspondence-others.pdf

752-del-1997-correspondence-po.pdf

752-del-1997-description (complete).pdf

752-del-1997-drawings.pdf

752-del-1997-form-1.pdf

752-del-1997-form-19.pdf

752-del-1997-form-2.pdf

752-del-1997-form-3.pdf

752-del-1997-form-5.pdf

752-del-1997-form-6.pdf

752-del-1997-gpa.pdf