Patents for F01N 3 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (61,059)
03/1994
03/10/1994DE4229954A1 Exhaust gas soot filter assembly with connectors for external electrical power supply and filter insert of sintered metal fleece - facilitating heat treatment of particles in absence of other heat treatment of gases
03/10/1994DE4229721A1 Spacer with collar holding monolithic catalyst honeycomb sections - and inside spacing flange, for removing nitrogen oxide, hydrocarbon, carbon mon:oxide, organic chlorine or inorganic fluorine cpds. from waste gas
03/10/1994DE4229414A1 Pneumatic switch valve for air intake of exhaust pipe of IC engine - has seal dependent upon size of membrane of positioning component
03/09/1994EP0586176A2 Control system for internal combustion engines
03/09/1994EP0585984A1 Method and apparatus for heating internal combustion engine exhaust gas
03/09/1994EP0585900A1 An exhaust gas purification device of an engine
03/09/1994EP0585752A1 Exhaust gas purification device for diesel engines
03/09/1994EP0585577A2 Exhaust system with a catalyst for an internal combustion engine of a motor vehicle
03/09/1994EP0585572A1 Apparatus and method for modifying gaseous mixtures
03/09/1994EP0506686B1 Exhaust pipe with helical-flow catalyst support
03/08/1994US5292485 Heat-resistant metal monolith
03/08/1994CA2043295C Exhaust gas purification system for an internal combustion engine
03/08/1994CA2026668C Recirculatory system
03/03/1994WO1994004804A1 A method of controlling a large two-stroke turbocharged internal combustion engine and an engine for use in this method
03/03/1994WO1994004800A1 Process for monitoring the operation of a catalytic converter
03/03/1994WO1994004246A1 Environmental control system filter purificator
03/03/1994DE4328715A1 IC engine with catalytic converter with heating unit for low emission cold start - in which fluid circuit connects thermal storage unit to engine block and uses electrically heated exhaust gas sensor
03/03/1994DE4328276A1 Fuel combustion in e.g. petrol or diesel engines - forms an inner shell as soot is developed with other gas components to give a chemical reaction without an outer shell formation
03/03/1994DE4325202A1 Control arrangement for secondary -air supply to an exhaust catalytic converter - for catalytic reduction of hydrocarbons, carbon mon:oxide and nitrogen oxide(s)
03/03/1994DE4244315A1 Catalytic cleaning appts. for exhaust gas - using catalyst in tube with conical transition piece with prevention of damage to catalyst by fixing inner cone, at end nearest catalyst, to tube and transition piece
03/03/1994DE4228863A1 Catalytic converter circular heat screen with corrugated profile - facilitating construction of thin-walled ring allowing core expansion
03/02/1994EP0585047A2 The purification of internal combustion engine exhaust emissions
03/02/1994EP0537219B1 Process and device for cleaning exhaust gases
03/01/1994US5290522 Catalytic converter mounting mat
03/01/1994US5289678 Apparatus and method of on-board catalytic converter efficiency monitoring
02/1994
02/24/1994DE4328125A1 Exhaust gas cleaning system for motor vehicle IC engine - has first cleaning treatment section arranged in exhaust system along with catalyser in main exhaust passage and by=pass passage downstream of this section.
02/24/1994DE4227741A1 Catalytic denitrification of engine exhaust gas with reducing agent - in amt. controlled according to nitrogen oxide concn. before and/or after redn. and pref. residual reducing agent content
02/23/1994EP0583594A1 System and method for removing hydrocarbons from gaseous mixtures using multiple adsorbing agents
02/23/1994EP0583507A1 Soot filter with hot gas generator
02/23/1994CN1082663A Catalytic solution
02/23/1994CN1082662A Catalytic solution
02/22/1994US5289360 Equipment for the generation of stabilized high direct voltage, particularly for use in combination with a non-polluting muffler
02/22/1994US5288975 Resistance adjusting type heater
02/22/1994US5288470 Metal substrate having an insulating barrier
02/22/1994US5287698 Exhaust gas purifying device for an internal combustion engine
02/17/1994WO1994003712A2 Method and apparatus for filtering engine exhaust
02/17/1994WO1994003711A1 Process and device for determining the load level of particle filters
02/17/1994WO1994003710A1 Exhaust gas preheating system
02/17/1994WO1994003268A1 METHOD FOR REDUCING AUTOMATIVE NOx EMISSIONS IN LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST USING ZEOLITES
02/17/1994CA2141564A1 Method for reducing automotive no emissions in lean burn internal combustion engine exhaust using zeolites
02/17/1994CA2141426A1 Method and apparatus for filtering engine exhaust
02/17/1994CA2140751A1 Exhaust gas preheating system
02/16/1994EP0582971A1 Process for the catalytic purification of automobile exhaust gases with improved cold start behaviour
02/16/1994EP0582917A1 An exhaust gas purification device for an engine
02/16/1994EP0582743A1 Catalytic reduction of NOx and carbon monoxide using methane in the presence of oxygen
02/16/1994EP0582618A1 Power generation system
02/16/1994CN1081931A Catalytic reduction of nox and carbon monoxide using methane in the presence of oxygen
02/15/1994US5286460 Method of operating catalytic converter
02/15/1994US5286442 High-aluminum-containing ferritic stainless steel having improved high-temperature oxidation resistance
02/15/1994US5286164 Radial blower with blower wheel rotating in spiral housing
02/15/1994US5285640 Integrated post-engine emissions heater, catalytic converter and muffler
02/15/1994US5285639 Method and system for controlling secondary air for internal combustion engine
02/14/1994CA2077202A1 Catalytic reduction of nox and carbon monoxide using methane in the presence of oxygen
02/10/1994DE4326384A1 Exhaust gas cleaning system for IC engine - has electrical heating system for catalyser in exhaust pipe and control unit connecting batteries in series or parallel
02/10/1994DE4326372A1 Exhaust gas cleaning system for IC engine using catalyser - uses heating system with wind guard to introduce heated air at air inlet pipe upstream of catalyser connected to exhaust gas pipe
02/10/1994DE4310962C1 Common exhaust gas unit for several engines - has common exhaust pipe with branch pipes contg. individual SCR catalysts
02/10/1994DE4226111A1 Use of a catalyst contg. acidic zeolite and precious metals - to reduce amt. of carbon and particle compsn. and size in diesel engine exhaust gas.
02/09/1994EP0582106A1 Exhaust pipe
02/09/1994EP0581784A1 Electrically heatable honeycomb body
02/08/1994US5284638 System and method for removing hydrocarbons from gaseous mixtures using multiple adsorbing agents
02/08/1994US5284556 Exhaust treatment system and method
02/08/1994US5284123 Pressure wave supercharger having a stationary cellular member
02/08/1994US5284018 Internal combustion engine with exhaust turbine
02/08/1994US5284016 Exhaust gas burner reactor
02/08/1994CA2016381C Two cycle engine catalytic emission control
02/06/1994CA2099693A1 System and method for removing hydrocarbons from gaseous mixtures using multiple adsorbing agents
02/06/1994CA2096197A1 Apparatus and method for modifying gaseous mixtures
02/03/1994WO1994002720A1 Gas cleaning device with a filter
02/03/1994WO1994002719A1 Method and device for removing particles from internal-combustion engine exhaust gases
02/03/1994DE4325004A1 Method of periodically attaining the ignition temp. of soot in the exhaust of an IC engine - requires soot filter with heater and flap in front to control back pressure, depending on temp.
02/03/1994DE4310837C1 Fuel system for engine exhaust burner with nozzle - has suction pipe with control valve connected to engine intake and leading to vacuum tank
02/03/1994DE4225361A1 Functional testing of secondary air admission into IC engine exhaust - involves measuring lambda value of exhaust gases by sensor supplying electronic control unit for secondary air pump and valve
02/03/1994DE4225274A1 Vehicle catalytic converter - heated before engine start-up, and activated by infrared door locking system remote control unit
02/02/1994EP0581279A2 An exhaust gas purification device for an engine
02/02/1994EP0581190A1 A device to clean catalytically the exhaust gases of internal combustion engines
02/02/1994EP0580931A1 Internal combustion engine with bypassable start-up catalyst
02/02/1994EP0580743A1 Catalytic converter having a monolith mounting which is comprised of partially dehydrated vermiculite flakes.
02/02/1994CN1081492A Constructure of waste gas discharging tube with catalyst muffler
02/01/1994US5282383 Method and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensors system
02/01/1994US5282355 Exhaust gas NOx removal system
01/1994
01/27/1994DE4324506A1 Hot-air exhaust gas cleaner for internal combustion engine - has control unit adjusting alternator output and controlling flow of air pumped through heater into catalytic converter
01/27/1994DE4324458A1 Water-cooled exhaust pipe element - has extra shell over outer pipe forming sealed cooled interspace to reduce operational temp.
01/27/1994DE4222469C1 Verfahren und Vorrichtung zur thermischen Behandlung von Gas, insbesondere thermischen und/oder katalytischen Nachverbrennung von Abgas Method and apparatus for thermal treatment of gas, in particular thermal and / or catalytic after-burning of waste gas
01/26/1994EP0580389A1 Exhaust gas purification apparatus for an internal combustion engine
01/26/1994EP0579956A1 Catalytic converter for internal combustion engines
01/26/1994EP0579803A1 Regenerable diesel exhaust filter
01/26/1994EP0545976B1 Monitoring of the catalytic activity of a catalytic converter through which a catalysable fluid flows
01/26/1994EP0545974B1 Monitoring of the catalytic activity of a catalyst in the exhaust gas system of an internal combustion engine
01/26/1994EP0521052B1 Process and device for monitoring the performance of a catalyst in an internal combustion engine
01/25/1994US5281399 For treatment of exhaust gases; chemical resistance; rigid cellular material fills space between refractory body and container wall
01/25/1994US5281245 Flue gas treatment apparatus and flue gas treatment system
01/25/1994US5280708 Exhaust gas purifying device for an outboard motor
01/25/1994US5280707 Apparatus for detecting deterioration of catalyst
01/25/1994CA1326455C Erosion resistant mounting composite for catalytic converter
01/20/1994WO1994001661A1 Metal honeycomb body of entwined layers of sheet metal and process for producing it
01/20/1994WO1994001660A1 Low nox cogeneration process and system
01/20/1994WO1994001202A1 Gas thermal treatment process and device, in particular thermal and/or catalytic afterburning of waste gas
01/20/1994DE4223648A1 Katalytische Abgasreinigungsvorrichtung Catalytic exhaust gas purification device
01/20/1994DE4223277A1 Verfahren und Vorrichtung zur Partikelentfernung aus Abgasen von Brennkraftmaschinen Method and apparatus for particle removal from exhaust gases of internal combustion engines
01/20/1994DE4223134A1 Honeycomb shaped catalytic support - produced by deforming structured sheet at paint, where the sheet rotation direction is changed