Patents for F01N 3 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (61,059)
05/1993
05/27/1993DE4138851A1 Catalyst for e.g. IC engine gaseous emissions purificn. - comprises catalysts on carriers coated on foils which form smooth, corrugated grooved or offset channels
05/27/1993DE4138306A1 Diesel engine exhaust filter - has nozzle system for directing regeneration gas onto filter body
05/27/1993DE4138284A1 Diesel engine exhaust filter - with reduced temp. variation caused by hot gas regeneration, has baffle with opening connecting exhaust space to regeneration space
05/27/1993DE4132440A1 Exhaust catalyst heating system - has containers contg. solids for high and low temp. reaction with gas, esp. hydrogen@
05/26/1993EP0543710A1 Structure of the catalytic support of the exhaust of a vehicle engine
05/26/1993EP0543075A1 Electrical heating element for a soot filter
05/25/1993US5214020 Backwash type particulate filter
05/25/1993US5213068 Arrangement for connecting pressure medium systems to cylinder head in big diesel engines
05/25/1993US5212949 Exhaust gas cleaning system for a marine propulsion unit
05/25/1993US5212948 Trap apparatus with bypass
05/25/1993CA1318256C Exhaust muffler for two-cycle motors, in particular as used for portable tools such as power saws
05/20/1993CA2083246A1 Catalyst material support for engine exhaust gas especially for car
05/19/1993EP0542452A1 Improvements in connecting pressure medium systems to the cylinder head of an I.C. engine
05/19/1993EP0542124A1 Silencer
05/19/1993EP0542002A2 Catalytic converter for the exhaust gases of an internal combustion engine
05/19/1993DE4236893A1 Exhaust gas system for internal combustion engines - has exhaust pipes leading from cylinder head exhaust duct and catalytic converter arrangement
05/19/1993DE4137771A1 Electrically regenerable particle filter assembly - for diesel engine exhausts
05/19/1993DE4137738A1 Practice filter for internal combustion engine - minimising pressure losses and reducing thermal loads
05/18/1993US5211918 Catalytic converter for exhaust gases
05/18/1993US5211012 Catalytic converter housing, particularly for starting catalytic converters, and associated catalyst carrier body
05/18/1993US5211011 Control apparatus for rapidly warming up catalyst in internal combustion engine
05/18/1993US5211010 Exhaust gas purification system for a diesel engine
05/18/1993US5211009 Method for the regeneration of particulate-filter systems
05/18/1993CA1317885C Apparatus for treating particulate emission from diesel engine
05/13/1993WO1993009335A1 Method for monitoring the efficiency of a catalytic converter for treating exhaust gases from an internal combustion engine
05/13/1993DE4238068A1 Diesel engine exhaust gas feedback control - regulates flow vol. through exhaust gas feedback channel dependent on press. in exhaust gas line containing particle filter
05/13/1993DE4137002A1 Recycling system for automobile engine exhaust gases - uses condensate container incorporated in rear bumper and cooler-condenser mounted on roof of vehicle
05/13/1993CA2082188A1 Catalyzer arrangement for the exhaust gases of an internal combustion engine
05/12/1993EP0541293A1 A valve
05/12/1993EP0541190A1 Core for an electrically heatable catalytic converter
05/12/1993EP0540743A1 Process, apparatus and system for the treatment of flue gas
05/12/1993CN1071852A Exhaust gas denitration method and apparatus therefor
05/11/1993US5209192 Two-cycle engine
05/11/1993US5209062 Large diesel engine
05/11/1993US5209061 Lean NOx catalyst, temperature sensor
05/06/1993DE4136304A1 Encapsulated piston engine - has protective tube round exhaust pipe where it passes out of housing with insulating material attached to tube and housing
05/06/1993DE4135055C1 Efficient, reliable and uniform charging of cylindrical honeycomb member - includes passing carrier gas through honeycomb member in closed circuit, etc.
05/06/1993CA2074534A1 Core for an electrically heatable catalytic converter
05/05/1993EP0540280A1 Nitrogen oxides decreasing apparatus for internal combustion engine
05/05/1993CN2131987Y Silencing dust-removing device for car
05/04/1993US5208205 Catalyst system for converting emissions of a lean-burn engine
05/04/1993US5207990 Exhaust gas purifying device for internal combustion engine
05/04/1993US5207989 Heat resistant seals for automobile exhaust
05/04/1993US5207807 Electric heater with electroconductive fibers; elongated insulators
05/04/1993US5207734 Engine exhaust system for reduction of hydrocarbon emissions
05/04/1993US5207058 Internal combustion engine
05/04/1993US5207057 Air-fuel ratio control device for an engine
05/04/1993CA1317240C Filter unit, and apparatus for treating particulates in an exhaust gas from a diesel engine
05/04/1993CA1317231C Process for the production of a catalytic converter for exhaust-gas cleaning and catalytic converter produced according to this
04/1993
04/29/1993WO1993008383A1 Exhaust and purification device for internal combustion engine
04/29/1993WO1993008382A1 Method and apparatus for initiating regeneration in an engine exhaust particulate filter
04/29/1993DE4134949A1 Method of maintenance of soot filter - enables soot to be burnt in filter and filter to be cleaned by reverse flow
04/27/1993US5206467 Muffler with a catalyst
04/27/1993US5205850 Particular filter
04/27/1993US5205120 Mixture-compressing internal-combustion engine with secondary-air injection and with air-mass metering in the suction pipe
04/27/1993CA1316841C Particulate trap exhaust muffler
04/26/1993CA2076487A1 Marine propulsion device internal combustion engine and method for making the same
04/22/1993DE4234841A1 Exhaust gas feedback control for diesel engine - controls throttle to allow regeneration of particle filter in exhaust line
04/22/1993DE4134199A1 Scavenging method for activated carbon filter - uses scavenging airflow, which is fed into exhaust cleaner, during certain operational conditions of engine
04/21/1993EP0537968A1 Nitrogen oxides decreasing apparatus for an internal combustion engine
04/21/1993EP0537942A1 Method of treating the emissions of a lean-burn engine
04/21/1993EP0537603A1 Double-walled air-insulated pipe for exhaust installations in vehicles
04/21/1993EP0537219A1 Process and device for cleaning exhaust gases.
04/21/1993EP0407559B1 Recirculatory system
04/20/1993US5204067 Catalytic exhaust system for internal combustion engine; inserts in outlet ducts; metal filter plates
04/20/1993US5204066 Method of operating catalytic converter
04/20/1993US5203872 Secondary air control and check valves
04/20/1993US5203167 Marine propulsion device internal combustion engine and method for making the same
04/20/1993US5203166 Method and apparatus for treating diesel exhaust gas to remove fine particulate matter
04/15/1993WO1993007366A1 Device for reducing the level of pollutants in exhaust emissions, in particular vehicle exhaust emissions
04/15/1993WO1993007365A1 Catalytic converter
04/15/1993WO1993007364A1 Exhaust gas catalytic converter
04/15/1993DE4233977A1 IC engine exhaust system catalyser deterioration detector - contains upstream and downstream oxygen sensors, arrangement for evaluating areas of sensor signal graphs
04/15/1993DE4218523C1 Catalyst appts. allowing easy operation of temp. - includes main exhaust gas line, thin by=pass line, exhaust gas line and control unit
04/15/1993CA2120759A1 Catalytic converter
04/14/1993EP0536789A2 A device for determining deterioration of a catalytic converter for an engine
04/14/1993EP0536158A1 Process for protecting catalysts used for cleaning exhaust gases and heat tone sensor for implementing the process.
04/14/1993CN1070985A Silencer combined with catalytic converter for internal combustionengines and modular diaphragm elements for said silencer
04/14/1993CN1070984A Ozone-catalyst method automobile tail gas purifier and technology
04/13/1993US5202548 Resistance adjusting type heater
04/13/1993US5202547 Resistance adjusting type heater
04/13/1993US5202303 Combustion apparatus for high-temperature environment
04/13/1993US5201802 Zeolite catalyst
04/13/1993US5201173 Catalyst temperature control system for internal combustion engines
04/13/1993CA1316113C Apparatus for increasing regenerative filter heating element temperature
04/08/1993DE4209470A1 Exhaust-driven burner for regenerator particle filter - has after burner chamber with partial exhaust flow, between combustion and mixer chambers
04/08/1993DE4141116C1 Operating burner receiving exhaust gas of IC engine - regenerating particle filter installation producing flame in variable manner
04/08/1993DE4133117A1 Decontamination of combustion engine exhaust gases - preheating catalyser, e.g. by feeding secondary air or electrical heating, according to its ageing state and downstream temp.
04/08/1993DE4132814A1 Exhaust gas purification method using catalytic converter, esp. for cold start - using fuel fired burner to preheat catalytic converter, controlled by temperature sensors
04/08/1993DE4132807A1 Exhaust with filter and fluid pump for motor vehicle - has removable filter cartridge, to be replaced and cleaned at petrol stations
04/08/1993CA2079176A1 Selective reduction of nox
04/08/1993CA2079123A1 Catalyst system for converting emissions of a lean-burn engine
04/08/1993CA2079122A1 Treating emissions from engines fueled by compressed natural gas
04/06/1993US5200629 Chemical conversion to reduce pollution; exhaust gases from internal combustion engines
04/06/1993US5200154 Powder metallurgy
04/06/1993US5199389 Work apparatus having an air-cooled internal combustion engine
04/06/1993US5199257 Device for removal of particulates from exhaust and flue gases
04/06/1993CA2014165C Catalytic converter front flange and method of making same
04/06/1993CA1315668C Filter-device and a filter-appliance from such filter-device
04/06/1993CA1315526C Catalyst-agglomerate bodies encapsulated in a structure