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7622096 Multilayered catalyst compositions  
A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed....
7622095 Catalyst composition for use in a lean NOx trap and method of using  
A lean NO x trap composition. The lean NO x trap composition utilizes ruthenium in place of higher cost metals such as platinum. The lean NO x trap composition provides high NO x storage...
7618255 Apparatus and method for catalytic combustion  
A catalytic combustion apparatus is equipped with a reactor for catalytically burning a gas to be treated containing a combustible organic compound, which further comprises a condensate forming...
7617675 Catalyst chamber  
In order to make available an exhaust gas system for a combustion engine with an external housing, which contains at least one rear shell and one front shell, and with a catalyst chamber, in which...
7614212 Engine control apparatus  
An engine control apparatus is configured to prevent damage to a catalytic converter caused by the occurrence of temperature differences. The engine control apparatus is particularly useful in a...
7569197 Process for purification of sulphur-containing exhaust gas  
The invention provides a process and system for purification of an exhaust gas stream from a combustion engine containing hydrocarbons, soot, carbon monoxide and sulphur dioxide. The process...
7568548 Motorcycle  
Disclosed is a motorcycle having a cowling covering an under side thereof in which the cowling can be formed so as to avoid a catalyst while maintaining strength of the cowling, and can maintain a...
7563422 Method for reducing a particle and nitrogen oxide proportion in an exhaust gas flow of an internal combustion engine and corresponding exhaust gas treatment unit  
A method for reducing the particle and nitrogen oxide proportion in an exhaust gas flow of an internal combustion engine includes supplying a reducing agent to the exhaust gas flow, subjecting the...
7552587 Deflector plate to enhance fluid stream contact with a catalyst  
A low-cost catalytic article is provided for treating gaseous fluid streams such as exhaust streams from gasoline-powered engines. The articles contain residence chambers defined by chamber walls...
7552586 Marine exhaust system with a downstream oxygen sensor located away from a water reversion liquid trajectory path  
A marine engine exhaust system has an oxygen sensor located within a catalyst housing structure and downstream from a catalyst device. The oxygen sensor is located away from a reversion liquid...
7524546 Thermal insulating material and pollution control device using the same  
A thermal insulating material which can be efficiently produced while the content of organic matters, such as organic fibers and/or an organic binder, is reduced to the same or lower degree as...
7517510 Layered catalyst composite  
A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In...
7501105 NOx reduction catalyst having excellent low-temperature characteristics  
A NOx removal catalyst comprising a carrier that includes a zeolite, and preferably a β-zeolite, that has undergone ion exchange with iron, and ferric oxide supported on the carrier. This NOx...
7491373 Flow-through honeycomb substrate and exhaust after treatment system and method  
A system and method including a radially non-uniformly plugged flow-through honeycomb substrate positioned upstream of a wall-flow particulate filter for controlled thermal regeneration of the...
7487633 Device for exhaust gas purification for spark-ignited engines  
The exhaust gas purification device has a first chamber having an exhaust pipe inlet, an ambient air inlet, and an exhaust gas outlet. A Venturi is arranged within the chamber, having an inlet end...
7485273 Method for the reduction of NOx and NH3 emissions  
This catalyst system simultaneously removes ammonia and enhances net NO x conversion by placing an NH 3 —SCR catalyst formulation downstream of a lean NO x trap. By doing so, the NH 3 —SCR...
7485271 Catalyst structure for treating NOx containing exhaust gas from a lean burn engine  
A catalyst structure for treating exhaust gas from a lean burn internal combustion engine comprises a substrate monolith comprising a lean NO X catalyst (LNC) composition associated with at least...
7485270 Process for treating compression ignition engine exhaust gas  
A process for treating exhaust gas from a compression ignition engine wherein substantially all fuel for combustion is injected into a combustion chamber prior to the start of combustion comprises...
7481041 Exhaust system and method for operating the same  
An exhaust system for a mobile combustion engine includes at least one exhaust pipe. The exhaust pipe has at least one catalytically active reaction chamber, inside which long-chain hydrocarbons...
7481040 Exhaust-gas heat exchanger, in particular exhaust-gas cooler for exhaust gas recirculation in motor vehicles  
The invention relates to an exhaust-gas heat exchanger, in particular an exhaust-gas cooler ( 1 ) for exhaust-gas recirculation (AGR) in motor vehicles equipped with channels, through which exhaust...
7461505 Exhaust pipe of vehicle  
An exhaust pipe 1 having a circular cross section is connected to a circular cylindrical housing 2 which creates part of pipe conduit. The housing 2 forms a storage space 21 having a...
7451849 Substantially fibrous exhaust screening system for motor vehicles  
An exhaust gas pollution treatment device, having an inlet pipe, an outlet pipe with an exhaust path extending between the inlet pipe and the outlet pipe. A gas permeable backbone member is...
7448348 Hydrogen-fueled internal combustion engine  
The present invention relates to a system that is capable of freely selecting one or two or more types of fuel and supplying the selected types of fuel to an internal combustion engine. Disclosed...
7412824 Catalytic converter system for diesel engines  
An improved exhaust system for a diesel engine and an improved overhead exhaust manifold segment therefore wherein the improvement comprises a plurality of catalytic converter elements removably...
7407036 Muffler for compact combustion engines  
To provide a muffler for a compact combustion engine, which is simple in structure and effective to sufficiently reduce the temperature of exhaust gases while avoiding contact with an external air,...
7402292 Device and methods of ammonia generation for NOx abatement  
One embodiment of a method of operating a NOx abatement system comprises: introducing an exhaust stream to an ammonia generator in a normal flow direction, adsorbing NOx from the exhaust stream in...
7399452 Meander-type catalytic converter  
To provide an exhaust system ( 100 ) for an internal combustion engine having a housing ( 10 ) in which there are provided at least one exhaust inlet port ( 15 b ) and another exhaust discharge...
7380637 Exhaust-gas muffler  
The invention is directed to an exhaust-gas muffler ( 1 ) of a handheld work apparatus driven by an internal combustion engine. The exhaust-gas muffler ( 1 ) includes a muffler housing ( 2 ) which...
7367180 System and method for controlling valve timing of an engine with cylinder deactivation  
Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such...
7361320 Exhaust gas purification unit with reducing agent supply  
The invention proposes an exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel...
7357901 Exhaust gas purification device for an internal combustion engine and exhaust gas purification method for an internal combustion engine  
An internal combustion engine with an exhaust gas purification device is provided in which the NOx held in a NOx catalyst can be efficiently reduced and purified, and a sufficient amount of NOx can...
7308788 Engine and method for counteracting face plugging of a diesel oxidation catalyst  
A turbocharged engine ( 20, 20′, 20″, 20 ′″) counteracts plugging of a diesel oxidation catalyst (DOC 48 ) by causing a first portion of exhaust from one or more exhaust manifolds ( 26, 28...
7296657 Engine exhaust muffler with exhaust emission control function  
A muffler having a muffler body divided into first and second exhaust chambers by a partitioning member which has a third exhaust chamber formed therein. An exhaust inlet introduces exhaust gas...
7266942 Diagnostic device and method of engine exhaust purifying system  
A diagnostic device and method of an engine exhaust purifying system, which perform active control of an air-fuel ratio and can make diagnosis of air-fuel ratio sensors, catalysts, etc. in the...
7159393 Device for exhaust gas purification  
A device for purifying exhaust gases from a combustion engine ( 1 ) is provided with a first filter ( 10 ) arranged in an exhaust conduit ( 7 ) between the engine ( 1 ) and an exhaust outlet ( 8 )...
7155902 Structure for fixing catalytic body to exhaust pipe  
For fixing a catalytic body, which has a cylindrical case and is housed in an exhaust pipe, to the exhaust pipe that serves as part of an exhaust system connected to an engine. The catalytic body...
7146806 Internal combustion engine cylinder and muffler assembly with catalytic converter  
A two cycle internal combustion engine cylinder having a piston chamber. The cylinder includes transfer ports; and an exhaust port divided into at least two sections. A first one of the sections...
7132087 Catalytic converter assembly  
An embodiment includes an apparatus and method of distributing gases within a catalytic converter assembly. Gases flow through at least one inlet into a housing and out of the housing through at...
7096664 Internal combustion engine  
An internal combustion engine is provided in which the temperature of an exhaust gas gradually decreases from its upstream side to its downstream side, and the temperature of a working medium of a...
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...
6962048 Engine exhaust apparatus  
An exhaust manifold of an engine exhaust apparatus includes a plurality of exhaust branches and a straight pipe section. The exhaust branches extend toward a confluence portion, from respective...
6962047 Engine intake A/F ratio control system in outboard engine system  
In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected...
6955043 Muffler assembly  
A muffler assembly for an internal combustion engine of a portable handheld work apparatus such as a motor-driven chain saw, cutoff machine or the like includes an exhaust-gas muffler ( 1 ) which...
6948309 Method of operating an internal combustion engine  
The invention relates to a method of operating an internal combustion engine having at least one mode of operation in which combustion substantially relies on autoignition of a compression...
6945036 Exhaust emission control filter and method of controlling exhaust emission  
Carbon-containing particulates like soot included in an exhaust gas of an internal combustion engine are collected by means of a heat-resistant filter medium. The filter medium dispersedly collects...
6941749 Device for the treatment of the exhaust gases of a compression-ignition engine comprising a catalyst and a nitrogen oxide adsorber placed in the exhaust manifold  
The device comprises in a cylindrical case ( 3 ) of an exhaust manifold ( 2 ) of an engine, a catalyst body ( 12 ) in a centre position, and means ( 14, 15 ) for adsorbing nitrogen oxides contained...
6911184 Exhaust emission control system and method for internal combustion engines  
An NO x storage-and-reduction type catalyst is used which exhibits a saturated NO x storage amount of 5 g or more as NO 2 with respect to 1 liter of a catalyst volume at 500° C., and rich...
6892854 Muffler with catalytic converter arrangement; and method  
An apparatus for modifying an exhaust stream of a diesel engine is provided. The apparatus includes a muffler arrangement having an exhaust inlet and an exhaust outlet in construct and arrange for...
6880328 Exhaust system of a multi-cylinder internal combustion engine and a method of cleaning an exhaust gas  
An exhaust system of a multi-cylinder internal combustion engine includes at least one first gas sensor, which is sensitive for at least one component of the exhaust gas and is arranged in the...
6851257 Exhaust gas passage structure of outboard engine  
A split face of an exhaust passage-defining member is coupled to a split face provided at a rear portion of an oil case interposed between an engine block and an extension case. A main exhaust gas...
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