Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01N - Gas-flow silencers or exhaust apparatus for machines or engines in general; Gas-flow silencers or exhaust apparatus for internal-combustion engines › F01N 3 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
Patents for F01N 3 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (61,059)
10/1991
10/16/1991EP0451207A1 Method for reducing emissions from or increasing the utilizable energy of fuel for powering internal combustion engines.
10/15/1991US5057482 Catalytic composite for purifying exhaust gases and a method for preparing the same
10/10/1991DE4010913A1 IC engine exhaust gas cleaning system - including spark gaps for post-combustion of un:combusted components
10/09/1991EP0450899A2 Method of producing porous ceramic filter, using cordierite composition including talc and silica powders
10/09/1991EP0450897A2 Heat-resistant metal monolith and manufacturing method therefor
10/09/1991EP0450348A1 Catalytic converter for internal combustion engines
10/09/1991EP0227711B1 Process and apparatus to remove pollutants in the exhaust gas of internal combustion engines
10/08/1991US5055348 Rigidity; impregnation of skin into core upon sintering
10/08/1991US5055275 Reinforced catalytic unit intended for purifying exhaust gases
10/08/1991US5055274 Central section with reduced diameter to compress support mat around catalyst
10/08/1991US5055112 Diesel particulate reducing 1,2-alkanediol additives
10/03/1991WO1991014861A1 Process and device for monitoring the degree of poisoning of a catalytic converter in the exhaust system of an internal-combustion engine
10/03/1991WO1991014856A1 Process and device for controlling an internal combustion engine in function of the actual temperature of a downstream catalyst
10/03/1991WO1991014855A1 Process and device for monitoring the performance of a catalyst in an internal combustion engine
10/03/1991WO1991014854A1 Active control of noise
10/03/1991WO1991014495A1 Method and apparatus for filtering engine exhaust
10/02/1991EP0449556A2 Production of ceramic honeycomb structural bodies
10/02/1991EP0449423A1 Catalyst for purification of exhaust gas from diesel engine
10/02/1991EP0448810A2 Slip-casting process for the manufacture of a ceramic product
10/02/1991DE4000716A1 IC engine exhaust purification - involves use of shock waves in exhaust to raise temp.
10/02/1991DE4000198A1 Exhaust system for internal combustion engine - has baffle in exhaust pipe to create turbulence in exhaust gases
10/02/1991CN2085855U Apparatus for purifying waste gas and reclaiming energy sources
10/01/1991US5053914 Safety circuit for a high-voltage generator of an electrostatic filter
10/01/1991US5053603 Electrical resistance heater
10/01/1991US5053062 Ceramic foam prefilter for diesel exhaust filter system
10/01/1991US5052178 Unitary hybrid exhaust system and method for reducing particulate emmissions from internal combustion engines
10/01/1991US5052177 Air-fuel ratio feedback control system having single air-fuel ratio sensor downstream of or within three-way catalyst converter
09/1991
09/29/1991CA2013266A1 Apparatus for reducing air pollution
09/27/1991WO1991014857A1 Improved low nox cogeneration process and system
09/27/1991CA2079234A1 Low nox cogeneration process and system
09/26/1991DE4008789A1 Process and assembly for treatment of vehicle exhaust gases - using cold catalytic converter equipped with buffer to retain initial exhaust until hot exhaust gases pass through
09/26/1991DE4005432A1 Thermally generated hydrogen from hydride reservoir - for redn. of metal salt or gas, esp. for purifying waste gas
09/25/1991EP0448054A1 Casing arrangement for monoliths used in motor vehicle exhaust purification
09/24/1991US5051392 Oxidation catalysts for converting carbon dioxide, hydrocarbons and nitrogen oxides
09/24/1991US5051294 Catalytic converter substrate and assembly
09/24/1991US5051244 Use of a molecular sieve bed to minimize emissions during cold start of internal combustion engines
09/24/1991US5051241 Microlith catalytic reaction system
09/24/1991US5050790 Process for the fabrication of metal-made carrier body for exhaust gas cleaning catalyst
09/24/1991US5050551 System for controlling ignition timing and fuel injection timing of a two-cycle engine
09/24/1991US5050377 Exhaust emission control apparatus
09/24/1991US5050376 Control system for diesel particulate trap regeneration system
09/24/1991CA1289544C High strength ceramic honeycomb structure
09/24/1991CA1289315C Refractory fiber spacial structure and manufacturing method thereof
09/22/1991CA2012844A1 Method of and an apparatus for regenerating a diesel particulate exhaust filter
09/19/1991DE4008092A1 Regeneration of carbon filters for Diesel IC engine - using reference airflow to monitor pressure build=up on filters to determine regeneration point
09/18/1991EP0446726A1 Silencer device
09/18/1991EP0446422A1 Soot filter for diesel engines
09/18/1991EP0446400A1 Method of and apparatus for the regeneration of a soot filter
09/18/1991CN2084983U Safety fire cover for exhaust pipe of motor vehicle
09/17/1991US5049770 Electric motor-driven impeller-type air pump
09/17/1991US5049206 Metal-made carrier body for exhaust gas cleaning catalyst and production of the carrier body
09/17/1991US5049170 Filter assembly for gas analyzer
09/17/1991US5048290 Arrangement for waste gas purification
09/17/1991US5048287 Tuned exhaust processor assembly
09/12/1991DE4106249A1 Catalytic cleaning set=up for exhaust gas of IC engine - has two catalytic converters with series connection in starting phase and parallel operation in normal conditions
09/12/1991DE4104165A1 Catalyser for reducing pollutants in exhaust gases - is heated by exhaust gas which has passed through pre-catalyser
09/12/1991DE4007516A1 Reduction of exhaust pollution of diesel engine - by fitting particle filter and oxidising catalyser
09/11/1991EP0446046A1 Filter for fine particulates from diesel engines
09/11/1991EP0445962A2 Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method
09/11/1991EP0445567A1 Exhaust gas cleaning system for diesel engine
09/11/1991EP0445408A1 Process for the reduction of nitrogen oxides contained in waste gases
09/11/1991EP0296165B1 Exhaust system for combustion engines
09/10/1991US5047381 Laminated substrate for catalytic combustor reactor bed
09/10/1991US5046308 Exhaust system for internal combustion engines provided with a device for housing filters designed to trap solid particles and unburned hydrocarbons entrained in exhaust gases
09/05/1991WO1991013242A1 Device and method for regeneration of an internal combustion exhaust particulate trap
09/03/1991US5045404 Heat-resistant stainless steel foil for catalyst-carrier of combustion exhaust gas purifiers
09/03/1991US5045403 Metal sheets forming walls of channels through which fluid can flow
09/03/1991US5045097 Soot filter for diesel-powered vehicles
09/03/1991US5045005 Marine engine exhaust system and method
09/03/1991US5044423 Method and an arrangement for disconnecting a heat exchanger charged with a heat vehicle fluid and placed in the path of exhaust gas from an IC engine
09/03/1991US5044159 Exhaust system for two-stroke cycle engines
09/03/1991US5044158 Process and device for closed-loop and open-loop control of the output of a burner
09/03/1991US5044157 Method and apparatus for eliminating carbon collected in an exhaust gas filter of an internal combustion engine
08/1991
08/29/1991DE4104637A1 Catalyser for motor vehicles - has inlet and outlet sections contg. concentric cone-shaped baffles on catalyser axis
08/28/1991WO1991013247A1 Exhaust emission control
08/28/1991EP0443625A1 Exhaust filter element and exhaust gas-treating apparatus
08/27/1991US5043311 Ceramic or metallic support with active metal oxide; concentration gradient from core to edge
08/27/1991US5043147 Combined muffler and catalytic converter exhaust unit
08/27/1991US5043146 Denitration reactor
08/27/1991US5042249 Soot filter for cleaning the exhaust from an internal combustion engine
08/27/1991US5042248 Process and apparatus for the regeneration of a soot-particle filter in an internal-combustion engine
08/24/1991CA2036854A1 Exhaust filter element and exhaust gas-treating apparatus
08/22/1991WO1991012416A1 Filter body for filtering a gas stream, especially for purifying exhaust gases issued by an internal combustion engine
08/22/1991DE4004861A1 Particle filter for IC engine exhaust gas
08/21/1991EP0442648A2 Method of and apparatus for monitoring operation of a catalytic converter
08/21/1991EP0442331A1 Method and apparatus for diminishing the possibility of gas detection
08/21/1991EP0442318A2 Particle filter regenerable by combusting for exhaust gases of internal combustion engines
08/21/1991CN2083196U Spark-extinguishing apparatus with columnar filter screen for internal-combustion engines
08/21/1991CN1053899A Catalyst for purification of exhaust gases of internal combustion engines
08/21/1991CA2010546A1 Microwave diesel scrubber assembly
08/20/1991US5041145 Bridged stream corona generator
08/20/1991US5040497 Engine starting aid
08/15/1991CA2036293A1 Method of and apparatus for monitoring operation of a catalytic converter
08/14/1991EP0441401A1 Exhaust gas purification system for an internal combustion engine
08/14/1991EP0441173A1 Catalyst for cleaning exhaust gases from combustion engines
08/14/1991EP0441062A1 Method for purification of exhaust gas and apparatus therefor
08/14/1991EP0440604A1 Devices and method for cleaning gases.
08/14/1991DE4003939A1 Noble metal alumina catalyst contg. oxide promoter for gas purificn. - doped with base metal for cold start property and resistance to lean gas
08/13/1991US5039647 Catalyst for exhaust gas purification and method for producing the catalyst
08/13/1991US5038815 Scrubber and muffler for exhaust gas from gas-powered valve actuators
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