| Patents for F01N 1 - Silencing apparatus characterised by method of silencing (8,998) |
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| 03/03/2004 | CN2605384Y Exhaust silencer for internal combustion engine |
| 03/03/2004 | CN1478994A Muffler |
| 03/02/2004 | US6698194 Two-stroke internal combustion engine |
| 02/26/2004 | DE10333096A1 Fahrzeugabgassystem mit längenausgleichendem Schalldämpfer Vehicle exhaust system with silencer längenausgleichendem |
| 02/26/2004 | DE10237667A1 Exhaust gas silencer for combustion engine, especially two-stroke engine, has interference body arranged upstream of catalyst unit and lying at distance from collision surface of catalyst unit |
| 02/25/2004 | EP1391597A2 Noise reduction conduit for static components in aircraft engines |
| 02/25/2004 | EP1017936B1 Silencer with a bypass resonator |
| 02/24/2004 | US6695094 Acoustic muffler for turbine engine |
| 02/19/2004 | US20040033313 Thermal insulating and acoustic absorption coating |
| 02/19/2004 | US20040031643 Muffler with catalytic converter arrangement; and method |
| 02/18/2004 | CN1475659A Exhaust device with resonance noise elimination as characteristics |
| 02/18/2004 | CN1138905C Muffler with acoustic absorption insert for limited clearance pneumatic device applications |
| 02/17/2004 | US6692238 Muffler of compressor |
| 02/17/2004 | CA2319292C An air intake silencer |
| 02/12/2004 | US20040026166 Muffler for marine engine |
| 02/12/2004 | US20040026165 Muffler for engine |
| 02/12/2004 | DE10235408A1 Exhaust gas silencer for internal combustion engine in portable powered appliance has resonance chamber sealed fluidtight in relation to damping chamber and through which is led exhaust gas-carrying resonance pipe |
| 02/11/2004 | CN2602724Y Sound filter |
| 02/11/2004 | CN1474041A Multiple independent serial silencers |
| 02/10/2004 | US6688929 Personal watercraft having an improved exhaust system |
| 02/05/2004 | WO2004011783A2 System and method for reducting pollutants from diesel engine exhaust |
| 02/05/2004 | DE10231056A1 Abgasanlage Exhaust system |
| 02/05/2004 | DE10230044A1 Schalldämpfer Silencer |
| 02/05/2004 | DE10000464B4 Fluidisches Schaltelement The fluidic switching element |
| 02/05/2004 | CA2493161A1 System and method for reducting pollutants from diesel engine exhaust |
| 02/04/2004 | EP0975859B1 Improved muffler with partition array |
| 02/04/2004 | CN2602167Y Sound absorption sheet |
| 02/04/2004 | CN1472088A Exhauster for mopeds |
| 02/04/2004 | CN1137328C Muffler for IC engine |
| 01/28/2004 | EP1383989A1 Pneumatic hand tool exhaust muffler having inner and outer tubes |
| 01/27/2004 | US6681889 Exhaust muffler for a fuel-operated heating device |
| 01/27/2004 | US6681888 Silencing apparatus, notably for a turbo engine |
| 01/22/2004 | WO2004007108A2 Sound-absorbing hollow body for an air supply |
| 01/22/2004 | DE10231048A1 Schalldämmender Hohlkörper zur Luftführung Sound-insulating hollow body for air guidance |
| 01/21/2004 | CN1469970A Device for treating waste gases resulting from technical combustion processes |
| 01/20/2004 | US6679742 Exhaust structure for a jet propulsion watercraft |
| 01/20/2004 | US6679351 Air turbine for combustion engine |
| 01/15/2004 | US20040006970 Exhaust gas system |
| 01/15/2004 | DE10250237A1 Vorrichtung zur Reduzierung von Schallemissionen und Verfahren zur Herstellung einer solchen Vorrichtung A device for reducing sound emissions and method for manufacturing such a device |
| 01/15/2004 | DE10228045A1 Nachschalldämpfer für eine Abgasanlage einer Brennkraftmaschine und Verfahren zum Betreiben dieser Silencer for an exhaust system of an internal combustion engine and method for operating the same |
| 01/14/2004 | EP1380734A2 Exhaust system |
| 01/14/2004 | EP1380730A1 Silencer |
| 01/14/2004 | CN1134284C System for neutralising polluted gases by pyrolysis |
| 01/08/2004 | US20040003963 Multiple-chambered exhaust muffler |
| 01/08/2004 | DE10322522A1 Schalldämpfer für Motoren Silencers for motors |
| 01/08/2004 | DE10131475B4 Abgasschalldämpfer Exhaust muffler |
| 01/07/2004 | CN2597670Y Silencer for motorcycle |
| 01/06/2004 | US6672425 Noise abatement module |
| 01/02/2004 | EP1375848A1 Device for reducing the noise emissions and method for production thereof |
| 01/02/2004 | EP1373689A1 Apparatus for damping resonance in a conduit |
| 01/02/2004 | EP1372913A1 Pneumatic tool with muffler bypass mechanism |
| 01/01/2004 | US20040000448 Silencer and power enhancement environmental device |
| 12/30/2003 | US6668973 Transverse partition for exhaust volume |
| 12/30/2003 | US6668972 Bumper/muffler assembly |
| 12/30/2003 | US6668971 Pneumatic hand tool exhaust muffler having inner and outer tubes |
| 12/30/2003 | US6668540 Gas turbine exhaust passage and damper system for same |
| 12/24/2003 | CN2594469Y Motorcycle noise silencer |
| 12/24/2003 | CN1132498C Loudspeaker phase distortion control using velocity feedback |
| 12/24/2003 | CN1131928C Pipe fixing method and main fram of motor bicycle |
| 12/24/2003 | CN1131772C 一种柔性的波纹状多层金属薄片防护屏及其制造方法 A flexible corrugated multilayer metal foil shield and its manufacturing method |
| 12/18/2003 | WO2003103477A2 Apparatus for containing noise generated by a pneumatically powered surgical instrument and related method |
| 12/17/2003 | EP1371824A1 Device for purifying exhaust gas of a combustion system |
| 12/17/2003 | CN1461884A Silencer of air inlet for reciprocating type compressor |
| 12/16/2003 | US6662554 Adjustable restriction muffler system for a combine |
| 12/11/2003 | WO2003102917A1 Device for creating noise in a motor vehicle |
| 12/11/2003 | WO2003102393A1 Low-noise pressure reduction system |
| 12/11/2003 | WO2003101780A1 Device for sonic configuration in a motor vehicle |
| 12/10/2003 | EP1368558A1 Method and device for production of a honeycomb body and honeycomb bodies |
| 12/10/2003 | CN2591239Y Locomotive muffler |
| 12/10/2003 | CN1461376A Muffler for internal combustion engine |
| 12/10/2003 | CN1130497C Flange member, noice silencer, tube end closure or connection device, and forming method and device |
| 12/09/2003 | US6660403 Flexible corrugated multilayer metal foil shields and method of making |
| 12/09/2003 | US6659821 Exhaust structure for jet propulsion boat |
| 12/09/2003 | US6659222 Multi-chambered muffler |
| 12/04/2003 | US20030221906 Low-noise pressure reduction system |
| 12/04/2003 | US20030221424 Exhaust cleaning system |
| 12/03/2003 | EP1366274A1 Exhaust processor with renewable particulate eliminator |
| 12/03/2003 | EP1366273A1 Air turbine for combustion engine |
| 11/27/2003 | US20030219131 Noise cancellation device, engine-noise cancellation device, and noise cancellation method |
| 11/26/2003 | EP1365120A1 Acoustic transducer for motor vehicle |
| 11/26/2003 | CN2588059Y Silencer for enginer |
| 11/26/2003 | CN1128711C Shaped multiplayer metal foil shield structures and method of making |
| 11/25/2003 | US6651773 Exhaust sound attenuation and control system |
| 11/20/2003 | US20030213643 Attenuating power booster |
| 11/19/2003 | EP0948709B1 Internal combustion engine |
| 11/19/2003 | CN1128292C Automative exhaust system structure |
| 11/18/2003 | US6648099 Exhaust pipe and muffler for motorcycle that does not heat discolor |
| 11/18/2003 | US6647713 Stratified scavenging two-cycle engine with catalyst |
| 11/13/2003 | US20030211020 Internal combustion engines; ceramic substrate with channels for controlling gas flow |
| 11/12/2003 | EP1360401A1 Soundproofing material for exhaust silencers that expands at a certain temperature |
| 11/11/2003 | US6644437 Vehicle exhaust with length-equalizing muffler |
| 11/05/2003 | EP1359308A1 Outlet silencer and heat recovery structures for gas turbine |
| 11/05/2003 | EP1358398A1 Silencer and exhaust gas system comprising a silencer |
| 11/05/2003 | CN1454288A An anti-scald exhaust muffler |
| 11/05/2003 | CN1454286A Engine silencer for controlling back pressure and gas leakage |
| 11/04/2003 | US6640927 Auxiliary silencer system for all terrain vehicles |
| 10/29/2003 | EP1356193A1 Method and apparatus for improved noise attenuation in a dissipative internal combustion engine exhaust muffler |
| 10/28/2003 | US6637545 Silencer |
| 10/28/2003 | US6637449 Pressure sensible valve for exhaust muffler and method of assembling same |
| 10/23/2003 | WO2003087547A1 Exhaust chamber comprising an envelope defining a gas circulation passage |