| Patents for F01N 3 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (61,059) |
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| 02/06/1991 | EP0412019A1 Device for the elimination of carbon particles in exhaust gas from internal combustion engines |
| 02/06/1991 | EP0411561A1 Catalytic muffler structure for engines |
| 02/06/1991 | EP0411445A2 Regeneratable particulate filter trap system |
| 02/06/1991 | EP0411421A1 Process for the production of a filter and filter produced thereby |
| 02/06/1991 | CN2070825U Device of silencing and extinguishing used for car |
| 02/06/1991 | CN2070824U Silencer having mean for purifying |
| 02/05/1991 | US4989409 Exhaust device for small sized boat engine |
| 02/05/1991 | US4989408 Device for removing soot from diesel exhaust |
| 02/03/1991 | CA2021723A1 Process for the manufacture of a filter and the filter then manufactured |
| 01/31/1991 | DE3923720A1 Electrostatic filtration by agglomerating charged contaminant particle - with opposite polarity carriers for later removal from entraining fluid stream |
| 01/30/1991 | EP0410924A2 Catalytic Converter |
| 01/30/1991 | EP0410200A1 Porous body for the treatment of gases and/or vapours and/or liquids and process for the production thereof |
| 01/30/1991 | CN2070362U Circular volute purifier for automobile exhaust |
| 01/29/1991 | US4988483 Honeycomb cores with exhaust gas cleaning catalyst, tubular metal casing |
| 01/29/1991 | US4987738 Cleaner, burner |
| 01/29/1991 | CA1279578C Low energy regeneration system for particulate trap for an internal combustionengine |
| 01/26/1991 | CA2021502A1 Diffuser |
| 01/23/1991 | EP0408910A2 Exhaust system of a reciprocating internal combustion engine |
| 01/23/1991 | EP0408772A1 Exhaust gas cleaning method |
| 01/22/1991 | US4987034 High-efficiency metal-made carrier body for exhaust gas cleaning catalyst |
| 01/22/1991 | US4986070 Prevention of formation of hydrogen sulfide |
| 01/22/1991 | US4986069 Engine exhaust particle trap captured mass sensor |
| 01/17/1991 | DE4020990A1 Exhaust gas to air heat exchanger for IC engine exhaust - has air inlet and outlet connections at the ends and midpoint of heat exchanger, dividing it into two separate axial sections |
| 01/17/1991 | DE3923094A1 Honeycomb catalytic exhaust purifier - comprises corrugated strips intersecting at acute angle and partly open to each other |
| 01/17/1991 | DE3922910A1 Exhaust gas cleaning unit esp. for diesel engines - has filter tubes of catalytic porous sintered metal |
| 01/17/1991 | DE3922909A1 Monolithic body esp. for diesel exhaust gas treatment - consists of porous sintered metal contg. catalyst |
| 01/16/1991 | CN2069485U Diesel exhaust device capable of collecting exhaust smoke |
| 01/16/1991 | CN1048581A Process for regeneration of soot filters on diesel engines |
| 01/15/1991 | US4985388 Catalytic exhaust pipe insert |
| 01/15/1991 | US4985387 Catalyst supports/catalysts for the treatment of vehicular exhaust gases |
| 01/15/1991 | US4985212 Support apparatus for a ceramic honeycomb element |
| 01/15/1991 | US4985210 Exhaust gas purifying apparatus for automobile |
| 01/13/1991 | WO1991000770A1 Permeable porous body for treating gases and/or vapours and/or liquids and process for manufacturing it |
| 01/13/1991 | WO1991000769A1 An apparatus and a method for separating particulate material from high-temperature gases |
| 01/13/1991 | CA2036385A1 Permeable, porous body for the treatment of gases and/or vapors and/or liquids and method of producing it |
| 01/10/1991 | WO1991000680A1 Methods for generating plasma and producing ozone |
| 01/10/1991 | WO1991000241A1 Photopromoted method for decomposing oxides of nitrogen into environmentally compatible products |
| 01/10/1991 | DE3920844A1 Monolithic ceramic element for use as soot filter - comprising segments split into sections sepd. by expansion gaps filled by binder |
| 01/10/1991 | DE3920159A1 Heat generation by flameless combustion in gas flow |
| 01/08/1991 | US4983135 Apparatus and method for cooling exhaust in an outboard marine propulsion system |
| 01/08/1991 | US4982565 Pilot burner for a device for burning solids in the exhaust gas of internal combustion engines |
| 01/02/1991 | EP0405310A2 Process for regenerating soot filters of diesel engines |
| 12/27/1990 | WO1990015955A1 Process and device for generating heat through the flameless burning of a fuel in a gas current |
| 12/27/1990 | EP0404320A2 Two cycle engine emission control apparatus |
| 12/25/1990 | US4980040 By heating under photoenergy absorbable by added metal oxide catalyst to decompose to nitrogen and oxygen |
| 12/25/1990 | US4979968 Apparatus for removing particles from exhaust gas |
| 12/25/1990 | US4979889 Extrusion die for mini-monolith substrate |
| 12/25/1990 | US4979364 Method of separating soot particles from diesel fuel exhaust gases |
| 12/20/1990 | DE3923640A1 Filtering out soot particles from IC engine exhaust gas flow - using existing and specified polarity conditioned retention power and/or related reaction with positive and negative charged filters |
| 12/20/1990 | DE3919533A1 Soot burning filter for diesel engine - incorporates fine mesh located after filter |
| 12/20/1990 | DE3919343A1 Burning off soot in catalytic diesel engine exhaust system - in cold conditions, by localised hot air stream maintaining ignition temp. |
| 12/19/1990 | EP0402864A1 Apparatus for treating exhaust particulates resulting from combustion in diesel engine |
| 12/19/1990 | EP0402773A1 System for the protection of automotive exhaust gas combustion devices |
| 12/19/1990 | EP0402705A1 Regeneration system for particulate trap |
| 12/18/1990 | US4977741 Combination exhaust manifold and exhaust elbow for marine propulsion system |
| 12/13/1990 | DE3918601A1 Pre and main converters for treatment of exhaust gas - pass gases directly to main converter when gas temp. is high enough for effective main converter operation |
| 12/13/1990 | DE3918597A1 Thermal converter for IC engine exhaust gases - raises exhaust gas temp. when necessary to conversion temp. by heat from exhaust gas fed thermal reservoir |
| 12/12/1990 | EP0401646A1 Metallic core member for catalytic converter and catalytic converter containing same |
| 12/11/1990 | US4976929 Electrically heated catalytic converter |
| 12/11/1990 | US4976760 Open-cell refractory |
| 12/11/1990 | US4976103 Multilayer composite body with gas flow passageways |
| 12/11/1990 | CA1277603C Catalytic converter for a diesel engine |
| 12/05/1990 | EP0401196A2 Exhaust system for two-cycle internal combustion engines |
| 12/05/1990 | EP0401195A2 Exhaust system, particularly for two-cycle internal combustion engines |
| 12/05/1990 | EP0401178A1 Exhaust header for internal combustion engines, able to eliminate unburnt combustion residues |
| 12/05/1990 | EP0400836A1 Coal fired power plant with pollution control and useful byproducts |
| 12/04/1990 | US4975099 Regeneratable particle filter for waste gases |
| 12/04/1990 | US4974414 Particulate purging apparatus for diesel engine exhaust |
| 12/02/1990 | WO1990015228A1 Device for removing oxidizable or combustible particles from exhaust gases |
| 11/29/1990 | WO1990014506A1 Device for cleaning hot gases from combustion engines |
| 11/29/1990 | WO1990014146A1 Muffler for a compressed air driven motor |
| 11/28/1990 | EP0399892A1 Combustion engine exhaust gas treatment multifonctional catalyst which contains uranium, at least one uranium promoter and at least one precious metal and process for its production |
| 11/28/1990 | EP0399891A1 Multifonctional catalysts which contain cerium, uranium and at least a metal for converting pollutants from exhaust gases of combustion engines, and their preparation |
| 11/28/1990 | EP0399203A2 Monolith or honeycomb catalyst |
| 11/22/1990 | EP0398479A1 Catalytic converter substrate and assembly |
| 11/22/1990 | EP0398130A2 Heat-resistant expansive member |
| 11/22/1990 | EP0397759A1 Method for improving combustion in combustion engines. |
| 11/22/1990 | DE3916556A1 Cleaning Diesel engine exhaust - involves pulsation radiation tube with independent resonance shock-wave ignition |
| 11/20/1990 | US4971769 Filter device for use in heating or incineration plants |
| 11/20/1990 | US4971768 Diffuser with convoluted vortex generator |
| 11/20/1990 | US4971612 Reclassifying silencer |
| 11/20/1990 | CA1276613C Catalyst carrier body and method and apparatus for brazing the same |
| 11/18/1990 | WO1990014507A1 Emission control |
| 11/18/1990 | CA2064568A1 Emission control |
| 11/15/1990 | WO1990013736A1 Metallic catalyst support mounted in a separating wall |
| 11/15/1990 | DE4014214A1 Insulating gap between honeycomb catalyser matrix and casing - in vehicle exhaust purifier is bridged by helical or annular fins |
| 11/14/1990 | CN2065672U Sound damper with fireproof, purifing, exhausting function |
| 11/13/1990 | US4969330 Two cycle engine catalytic emission control |
| 11/13/1990 | US4969329 Two cycle engine with exhaust emission control |
| 11/13/1990 | US4969328 Diesel engine exhaust oxidizer |
| 11/13/1990 | US4969265 Method of producing metal support for exhaust gas catalyst |
| 11/13/1990 | US4969264 Catalytic converter and substrate support |
| 11/08/1990 | DE3914871A1 Exhaust manifold for IC engine - incorporates coaxial pipe for air to cool exhaust gases |
| 11/07/1990 | EP0396331A1 Crack resistant intumescent sheet material |
| 11/07/1990 | EP0396330A1 Intumescent conforming mounting pad |
| 11/07/1990 | EP0396262A2 Two cycle engine with exhaust emission control |
| 11/07/1990 | EP0395840A1 Exhaust gas purifying soot filter for an internal combustion engine |
| 11/07/1990 | EP0344284A4 Porous ceramic shapes, compositions for the preparation thereof, and method for producing same |
| 11/07/1990 | CN2065241U Exhaust purifying apparatus for automative vehicle |
| 11/05/1990 | CA2015916A1 Two cycle engine with exhaust emission control |