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6986247 Thermoelectric catalytic power generator with preheat  
An automobile catalytic converter that utilizes the energy of the exothermic reactions that take place in the catalysis substrate to produce electrical energy with a thermoelectric generator. On...
6976355 Exhaust-gas cleaning device for engine  
An exhaust-gas cleaning device for an engine comprises an HC-adsorbing catalytic converter disposed in an exhaust passage, the HC-adsorbing catalytic converter including an HC-adsorbing material...
6968681 Method and device for aftertreatment of exhaust gases from combustion engines  
The invention relates to a device and a method for the aftertreatment of exhaust gases from combustion engines, in particular from internal combustion engines. The device according to the invention...
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...
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...
6941743 Lean burn emissions system protectant composition and method  
A method, apparatus, and fuel composition for the protection of a catalytic after treatment system and a method for protecting a catalytic after treatment system in a lean burn system are...
6935102 Method of controlling the concentration of nitrogen oxides, hydrocarbons and carbon monoxide in conjunction with the cleansing of emission gases  
A method of controlling the concentration of nitrogen oxides, hydrocarbons, and carbon monoxide in waste gases. A first lambda value (λ1) of the air-fuel mixture is set to less than 1. The gases...
6935105 Integrated apparatus for removing pollutants from a fluid stream in a lean-burn environment with heat recovery  
An apparatus and method to treat fluid streams, and in particular emissions from lean-burn engines such as diesel engines, are disclosed, which use multiple catalysts chosen to remove hydrocarbons,...
6931839 Apparatus and method for reduced cold start emissions  
An exhaust system for an internal combustion engine having a plurality of cylinders, comprising: a exhaust manifold for providing fluid communication of exhaust of the plurality of cylinders to a...
6922891 Method of manufacturing a catalytic converter  
A manufacturing process for producing a particulate reactor substrate according to the invention includes the steps of first roll-stamping small, raised dimples into the fabric substrate to control...
6912840 Diagnosis of a water adsorber in the exhaust of an internal combustion engine  
A method for checking the functionality of a water adsorber in the exhaust of an internal combustion engine is provided. A sensor measures the temperature of the exhaust gases downstream in the...
6880327 Arrangement and method for compressed air systems in vehicles  
Method and arrangement for providing a compressed air system in a vehicle including a compressor ( 2 ) for generating compressed air and a connection ( 11 ) for feeding compressed air generated by...
6878354 Catalyst and process for exhaust purification  
A catalyst for internal combustion engine exhaust purification without frequently switching to a rich burn mode. The catalyst includes a catalyst A containing an NO x absorbing substance and an NO...
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...
6850165 Catalyst deterioration detecting system for an automobile  
The invention provides a catalyst deterioration detecting system that is capable of detecting the degree of deterioration of each catalyst in a catalyst converter which includes two or more...
6843817 Ceramic filter and filter device  
The present invention provides a ceramic filter to be used at a high temperature, and it contains a substance having preferential reactivity with an ash component contained in materials captured by...
6827909 Catalytic converter, diesel engine and lean-burn engine having a catalytic converter  
A catalytic converter for cleaning exhaust gas from an internal combustion engine, in particular a diesel engine or a lean-burn engine, includes at least one honeycomb body coated with...
6745562 Diverter for catalytic converter  
A diverter ( 60 ) is provided, which is of low cost and which is effective in more evenly distributing exhaust gasses passing from a small diameter upstream exhaust gas pipe section ( 42 ) into a...
6729127 Exhaust cleaning system for motor vehicles, especially diesel-powered utility vehicles  
An exhaust cleaning system for motor vehicles, especially a diesel exhaust cleaning system for medium to heavy utility vehicles. The exhaust cleaning system has an exhaust muffler ( 1 ), a...
6725815 Cam-drive engine and cylinder assembly for use therein  
A cam-drive engine having one or more cylinder assemblies detachably affixed to an engine core that does not include a cylinder block per se. Each cylinder assembly can be attached to or detached...
6725647 Exhaust gas treatment units for internal combustion engines and processes for operating them  
The present invention provides an exhaust gas treatment unit for an internal combustion engine. A first catalyst unit produces ammonia from corresponding constituents in a rich exhaust gas...
6725654 Vortex device and system for treating exhaust gas from internal combustion engine  
The present invention is to provide a vortex device for treating exhaust gas of an internal combustion engine, which comprises a first housing having a first end surface and a second end surface; a...
6722123 Exhaust aftertreatment device, including chemical mixing and acoustic effects  
An exhaust aftertreatment device ( 10 ) includes an aftertreatment element ( 24 ) for treating internal combustion engine exhaust, an injector ( 26 ) for injecting chemical species mixing with the...
6722126 Exhaust arrangement for internal combustion engine  
An exhaust arrangement for a multi-cylinder internal combustion engine of a vehicle which has a row of cylinders. The arrangement includes an exhaust manifold including a branch portion having a...
6718758 Regenerative catalytic apparatus in hybrid vehicle  
The exhaust emission of a hybrid vehicle is improved by providing a technology of achieving effective functioning of a regenerative catalytic apparatus by utilizing a feature of the hybrid vehicle...
6698193 Exhaust gas cleaning system for an internal combustion engine, for a motor vehicle  
An exhaust gas cleaning system for an internal combustion engine for a motor vehicle has a catalytic converter housing with an associated exhaust catalytic converter and an inlet opening for...
6662555 Catalyzer arrangement for engine  
A catalyzer arrangement for an engine includes an improved construction that does not require a large space for furnishing a relatively large volume catalyzer. The engine is surrounded by a...
6660239 Method and system for treating volatile organic compounds using a catalytic oxidizer without a burner  
A catalytic oxidation system and method for the treatment of volatile organic compounds in which VOC-containing gas is preheated in a heat exchanger for raising its temperature before oxidation in...
6655129 Process for operating a three-way catalyst that contains an oxygen-storage component  
A process is provided for operating a three-way catalyst that contains an oxygen storage component, that has a minimum and a maximum filling degree for oxygen and that is located in the exhaust gas...
6647713 Stratified scavenging two-cycle engine with catalyst  
A stratified scavenging two-cycle engine with catalyst capable of meeting such a requirement that a THC exhaust rate is 54 [g/kW·h] or less with use of catalyst. For this purpose, in the...
6634168 Exhaust gas purification system  
The invention relates to an exhaust gas purification system for removing carbon monoxide, hydrocarbon and nitrogen oxide from an exhaust gas of an internal combustion engine. This system includes...
6625976 Three-way conversion catalysts and methods for the preparation therefor  
A platinum group metal three-way conversion catalyst composition containing a high temperature catalytic component and a low temperature catalytic component has each catalytic component present as...
6622482 Combined catalytic muffler  
A catalytic muffler has at least one reactor bed, each bed having an array of discreet adjacent flow zones. The flow zones are interconnected by a series of passages for unidirection flow of a...
6584768 Vehicle exhaust filtration system and method  
A Vehicle Exhaust Filtration System and Method is disclosed. Also disclosed is a system and method that reduces the airborne contaminants leaving the exhaust pipe of any internal combustion engine...
6572682 Self-cleaning filter system using direct electrically heated sintered metal fiber filter media  
A Diesel particulate filter cartridge system for filtering particulate matter and nitrogen oxide from a flow of air containing particular matter includes a filter support plate with a plurality of...
6562309 Photocatalytic system  
A photocatalytic device for photocatalytically treating evaporative emissions comprises a substrate with a photocatalyst. A shell is disposed about the substrate, and can optionally comprises one...
6544310 Exhaust aftertreatment filter with particulate distribution pattern  
An exhaust aftertreatment filter and method is provided for filtering engine exhaust. Varying cell size is provided to spread trapped contaminant particulate along a distribution pattern reducing...
6539707 Exhaust emission control system for internal combustion engine  
An upstream catalyst and a downstream catalyst are disposed in series in an exhaust pipe, and first through third sensors for detecting the air-fuel ratio or an adsorption amount of hazardous...
6517784 Exhaust gas purifying apparatus for an internal combustion engine  
Exhaust gas from internal combustion engines is treated with catalyst comprising an inorganic oxide supporter which supports at least one of noble metals selected from Rh, Pt, and Pd, alkali rare...
6516608 Method for controlling the injection and ignition in a direct-injection endothermic engine, in order to accelerate heating of the catalytic converter  
Method for controlling the injection and ignition in a direct-injection endothermic engine, in order to accelerate heating of a catalytic converter , which is disposed along the exhaust pipe of the...
6513324 Device with heating element for exhaust gas cleaning  
A device for cleaning exhaust gas from an internal combustion engine, especially a diesel engine, includes at least one catalyst carrier body through which an exhaust gas can flow. The catalyst...
6513322 Device for controlling the rise of the catalyst temperature in an internal combustion engine  
A device for controlling the rise of the catalyst temperature in an internal combustion engine, capable of quickly raising the catalyst temperature at the start to satisfy the exhaust gas...
6502392 Induction cooled exhaust filtration system  
An exhaust filtration system for filtering exhaust gases produced by an internal combustion engine may comprise a fan having an intake side and a discharge side and an air inlet operatively...
6497851 Engine exhaust treatment apparatus and method of use  
An exhaust gas treatment apparatus and method for its use includes an upstream catalyst and a downstream catalyst. The upstream catalyst contains a catalytic metal effective at least for the...
6490858 Catalytic converter thermal aging method and apparatus  
A method and apparatus for the thermal aging of catalytic converters uses a gas dynamic exhaust gas generator for generating heated exhaust gas for the thermal aging process. The gas generator...
6488904 Method of controlling emissions in exhaust gases from a two-stroke gasoline engine  
An exhaust gas catalyst especially for small two-stroke gasoline engines comprises a platinum group metal deposited on a refractory metal honeycomb support and is provided with a diffusion barrier...
6471924 Method and apparatus for NOx abatement in lean gaseous streams  
A method for reduction of NO x in a lean gaseous stream includes passing the gaseous stream at a temperature within the NO x sorbing temperature range through a catalyzed trap member having an...
6453664 Control system for internal combustion engine  
A control system for an internal combustion engine having an exhaust system provided with a catalyst is provided. The control system comprises a catalyst temperature rise accelerating control in...
RE37848 Exhaust cleaning system for marine propulsion engine  
An exhaust cleaning system for a marine propulsion engine that includes a catalyst positioned within a tube that communicates with an expansion chamber. A cooling jacket extends around at least a...
6438946 Exhaust gas purification device for engines  
A plurality of catalysts are installed in an exhaust pipe, air-fuel ratio sensors or oxygen sensors are installed upstream and downstream of each catalyst, and the air-fuel ratio of the exhaust gas...