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| Number | Title | Issue Date |
| 8166752 | Apparatus and method for cooling an exhaust gas An exhaust gas cooling apparatus and method for cooling an exhaust gas is provided. The exhaust cooling apparatus having a first fluid conduit having a variable nozzle opening disposed at one end of the first fluid conduit, the variable nozzle opening being defined ... | 05/01/2012 |
| 7434656 | Exhaust device for vehicle engine An exhaust device includes an exhaust pipe connected at its upstream end to a cylinder head of the engine and an exhaust muffler connected to the downstream end of the exhaust pipe for suppressing the generation of noise from a heat insulating cover that covers a pa... | 10/14/2008 |
| 7356987 | Exhaust gas recirculation system having an electrostatic precipitator An exhaust gas recirculation system for a power source, has at least one inlet port configured to receive at least a portion of a flow of exhaust produced by the power source. The exhaust gas recirculation system also has an electrode disposed upstream of the at lea... | 04/15/2008 |
| 7156929 | Cast iron alloy The invention proposes a cast iron alloy for cast iron products which are highly thermally stable, the alloy containing, as nonferrous constituents, at least the elements C, Si, Mo, Al and, as admixtures, Ni, Mg and/or S, and the C content being less than 2.9% by we... | 01/02/2007 |
| 6978605 | Exhaust emission control system for engine In an exhaust emission control system for an engine, comprising an exhaust emission control catalyst disposed in an exhaust muffler whose inside is divided into a plurality of chambers, at least a portion of the inside of the exhaust muffler is divided into a first ... | 12/27/2005 |
| 6964161 | Induction exhaust system A induction exhaust system, for an internal combustion engine, capable of the multi step processes of 1) scavenging the chamber of exhaust gases and free radicals, 2) breaking the scavenge vacuum wave behind each energetic exhaust pulse, releasing said free radicals... | 11/15/2005 |
| 6789385 | System for supplying secondary air in the exhaust system of an internal combustion engine A reciprocating piston engine (2) includes an exhaust system comprising an exhaust pipe (8) which communicates with a silencer (10), whose upstream portion (11) is divergent in the direction of gas flow through it, an oxidising catalyst (... | 09/14/2004 |
| 6584952 | Method and device for controlling the combustion mode of an internal combustion engine Device for controlling the mode of combustion of a controlled-ignition four-stroke petrol engine (1) equipped with a system (2) for the direct injection of fuel into the combustion chamber, with at least one catalytic converter (3) placed in the exhaust l... | 07/01/2003 |
| 6516613 | Exhaust manifold device An exhaust manifold device is provided to allow air to enter an exhaust manifold during normal operation or an engine to prevent exhaust gases being sucked into the cylinders via exhaust valves. Air can be supplied, via valves (18 and 21) to the exhaust m... | 02/11/2003 |
| 6357223 | Method and apparatus for enhancing the rate and efficiency of gas phase reactions An apparatus and a method for enhancing the rate of a chemical reaction in a gas stream. The apparatus includes at least one heterogeneous catalyst having an upstream end and a downstream end, and at least one surface having a plurality of catalytically a... | 03/19/2002 |
| 6250075 | Engine muffler An engine muffler is provided which comprises a first expansion chamber for exhaust gas which includes an exhaust gas inlet to be connected to an exhaust port of an engine, a second expansion chamber which includes an exhaust gas outlet, a first exhaust g... | 06/26/2001 |
| 6205777 | Catalytic method An emissions control system for rich-burn internal combustion engines, includes a reaction chamber for thermal oxidation of exhaust gas fuel values. A passive means utilizes exhaust flow energy for induction of air into engine exhaust gas, and a duct tran... | 03/27/2001 |
| 6185934 | Device and method for filtering internal combustion engine exhaust gases and vehicle equipped with such a device The invention discloses a device for filtering internal combustion engine exhaust gases, comprising an electrostatic filtering chamber equipped with electrostatic filtering means, a line for supplying gases into the chamber, in fluid communication with an... | 02/13/2001 |
| 6167700 | Exhaust system for an internal combustion engine An exhaust system for an internal combustion engine. A plenum chamber has two ports, one which is connected to a header tube for conducting a stream of exhaust gas and another which is connected to a ram tube adapted to collect outside air provided by mov... | 01/02/2001 |
| 6164066 | Muffler for internal combustion engine A muffler for an internal combustion engine has a vertically elongated expansion chamber into which an exhaust gas from the exhaust port of internal combustion engine is introduced. The expansion chamber is separated level-wise into a first expansion cham... | 12/26/2000 |
| 6047543 | Method and apparatus for enhancing the rate and efficiency of gas phase reactions An apparatus and a method for enhancing the rate of a chemical reaction in a gas stream. The apparatus includes at least one heterogeneous catalyst having an upstream end and a downstream end, and at least one surface having a plurality of catalytically a... | 04/11/2000 |
| 5941069 | Exhaust apparatus An exhaust apparatus for a combustion engine having a combustion chamber and an exhaust pipe for conveying exhaust gas in an exhaust stream from the combustion chamber is disclosed, wherein the exhaust apparatus includes a fan member disposed downstream o... | 08/24/1999 |
| 5921080 | Oxidation catalytic converter system for small spark ignited engines An oxidation catalytic converter system for small spark ignited engines includes a housing containing a catalyst, an inlet for receiving exhaust gases from the engine, and an outlet for discharge of the exhaust gases from the housing after passing through... | 07/13/1999 |
| 5887424 | Exhaust apparatus for engine An exhaust apparatus for an engine is provided, which is capable of efficiently sucking in secondary air for a catalyst by utilizing an ejector (entraining) effect caused by the exhaust gases and which has a simple and inexpensive structure. Exhaust gases... | 03/30/1999 |
| 5732555 | Multi-pass catalytic converter A multi-pass catalytic converter/muffler uses a single catalytic support bed without increasing the overall size of the catalytic converter/muffler. The outer surface area of the catalytic support bed is disposed adjacent to the outer wall of the catalyti... | 03/31/1998 |
| 5730946 | Combined catalytic converter and muffler The invention relates to combined catalytic converter and muffler device intended for attachment to the exhaust pipe of an engine, e.g. on a lawn mower. The device comprises a housing within which a catalytic substance (14) is arranged. According to the i... | 03/24/1998 |
| 5590523 | Flow focusing and mixing device The present invention is a flow focusing and mixing device for use with internal combustion engines. The flow focusing and mixing device may be located in the exhaust stream of an internal combustion engine for increased oxidization of the exhaust, increa... | 01/07/1997 |
| 5590522 | Catalytic combustion engine exhaust gas purifier with additional air supply The invention relates to a catalytic combustion engine exhaust gas purifier with additional air supply. The exhaust gas purifier comprises a housing structure (1) accommodating an exhaust gas inlet (2), at least one catalyst element (3), means (4) for lam... | 01/07/1997 |
| 5548955 | Catalytic converter having a venturi formed from two stamped components The catalytic muffler for small internal combustion engines has a venturi with a flattened profile formed from two stamped pieces, namely the muffler housing and the separator plate. This design eliminates the need for a separate piece of tubing or machin... | 08/27/1996 |
| 5545377 | Catalyst degradation detecting apparatus An exhaust purification device includes a catalytic converter for purifying exhaust gas from an engine, air-fuel ratio sensors provided on the upstream side and downstream side of the catalytic converter, respectively, for detecting the concentration of a... | 08/13/1996 |
| 5515674 | Exhaust afterburner An exhaust afterburner for positioning in an exhaust duct or the like of an internal combustion engine through which partially reacted gases are circulated is disclosed. The exhaust afterburner includes a venturi induction member which has a circumferenti... | 05/14/1996 |
| 5499502 | Secondary air supplying system having a motor-driven air pump A motor-driven air pump operates when an engine is starting so that warming-up of an exhaust gas purifying catalyst may be expedited. The air pump has a low ventilation resistance to pass secondary air therethrough even when the pump is not driven by the ... | 03/19/1996 |
| 5431013 | Engine exhaust apparatus An engine exhaust apparatus comprises a sound suppressing section for lowering the exhaust noise level as an exhaust gas discharged from the exhaust port passes through it. The exhaust apparatus is provided with an ejector section for introducing secondar... | 07/11/1995 |
| 5421154 | Exhaust temperature control An emissions control system for rich-burn internal combustion engines, said control system comprising: a. a reaction chamber for oxidation of exhaust gas fuel values, b. passive means to utilize reaction chamber effluent flow energy to mix cooling air into rea... | 06/06/1995 |
| 5396767 | Engine exhaust gas cleaning system An engine exhaust gas cleaning system including a converter section that is disposed at the rear end of the exhaust pipe and which has an outer shell that is surrounded by a further outer shell having a rearwardly disposed atmospheric air inlet and a forw... | 03/14/1995 |
| 5193341 | Arrangement for removing oxidizable or combustible particles from exhaust gases The invention relates to a device for removing soot particles from exhaust gases of a diesel engine. To this end, the exhaust pipe (15) of the diesel engine (1) is connected to a vortex tube (2) into which the exhaust gases of the diesel engine flow tange... | 03/16/1993 |
| 4830833 | Catalytic converter A catalystic converter includes an annular catalyst bed containing catalyst beads and defined by inner and outer coaxial perforated tubes. An outer shell coaxial with the catalyst bed defines a passage between the outer shell and the outer perforated tube... | 05/16/1989 |
| 4444725 | Catalytic booster device for vehicular exhaust systems and method of installing A catalytic booster-converter for insertion into the exhaust pipe of a vehicular exhaust system comprising an elongated conduit device adapted to be rigidly connected in series with an exhaust pipe intermediate the ends thereof. The elongated conduit devi... | 04/24/1984 |
| 4248199 | Bidirectional pulse jet ejector manifold The invention relates to new and useful improvements in the design of fluid ejectors and in particular to their use in the exhaust and induction manifolds of the piston driven internal combustion engine. Accelerated exhaust gases jetting from an engine cy... | 02/03/1981 |
| 4209493 | Combination catalytic converter and muffler for an exhaust system A combination muffler and catalytic converter for an exhaust system. The unit comprises an outer housing having an inlet to receive exhaust gases, and a venturi is located within the housing and provides an aspirating effect to draw air into the housing f... | 06/24/1980 |
| 4094645 | Combination muffler and catalytic converter having low backpressure Combination muffler and catalytic converter utilizes an axial flow monolithic catalytic element to treat exhaust gases from an internal combustion engine and partially reduce their sound. The device incorporates a venturi in the exhaust gas inlet path to ... | 06/13/1978 |
| 4019883 | Vortex sulfuric acid separator A separator for removing sulfuric acid from a hot gas stream comprising a substantially cylindrical body having tangentially arranged inlet and outlet conduits to create a vortical flow path of the gas being treated, means being provided for adding coolin... | 04/26/1977 |
