| Patents for F01N 1 - Silencing apparatus characterised by method of silencing (8,998) |
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| 04/24/2002 | EP1198660A1 Apparatus and method for multi-conduit waterlift engine silencing |
| 04/24/2002 | CN1346013A Method for making silencing purifier and apparatus thereof |
| 04/23/2002 | US6374944 Silencer with internal rain diverter |
| 04/23/2002 | US6374599 Compact tuned exhaust system for aircraft with reciprocating engines |
| 04/18/2002 | US20020043065 Exhaust heat energy recovery system for internal combustion engine |
| 04/18/2002 | DE10139700A1 Internal combustion engine for handheld tools has exhaust gas muffler with structure of oxygen rich exhaust gases storage |
| 04/17/2002 | CN1344859A Engine silencer |
| 04/17/2002 | CN1083042C Soundabsorbing element and procedure for manufacture of same and use thereof |
| 04/11/2002 | US20020040826 Muffler with catalytic converter arrangement, and method |
| 04/11/2002 | US20020040578 Internal combustion engine as a drive engine in a portable handheld work apparatus |
| 04/11/2002 | DE10048118A1 Verfahren zur Herstellung eines Absorptions-Schalldämpfers für Kraftfahrzeuge sowie Absorptions-Schalldämpfer A process for producing an absorption silencer for motor vehicles and absorption silencers |
| 04/10/2002 | EP1195499A2 Device and method for reducing the noise emissions of internal combustion engines and for diagnosing the same |
| 04/10/2002 | EP0714475A4 Muffler with intermediate sound-attenuating partition and method |
| 04/10/2002 | CN2485427Y Secondary silencer for motorcycle |
| 04/10/2002 | CN1344177A System for neutralising poluting gases by pyrolysis |
| 04/10/2002 | CN1343833A Exhaust silencer |
| 04/04/2002 | WO2002027161A1 An ant-scald exhaust muffler |
| 04/04/2002 | WO2002027159A2 Muffler assembly of a motor vehicle having a variable damping characteristic |
| 04/04/2002 | WO2001081737A3 Exhaust pipe outlet |
| 04/04/2002 | DE10044604A1 Verfahren zum Erzeugen eines an harmonischen Frequenzen reichen, sportlich klingenden Ansaug- und/oder Auspuffgeräusches bei Viertaktmotoren A method for generating a rich harmonic frequencies, sporty sounding intake and / or exhaust noise for four-stroke engines |
| 04/03/2002 | CN2484409Y Air-inlet silencer of tractor |
| 04/02/2002 | US6364055 Acoustically non-resonant pipe |
| 04/02/2002 | US6364054 High performance muffler |
| 03/28/2002 | WO2000050742A9 Resonator |
| 03/28/2002 | US20020036114 Audible tuning apparatus for a muffler |
| 03/27/2002 | EP1191219A1 Ventilative noise suppressing unit for vehicle |
| 03/27/2002 | EP1191195A1 Catalytic muffler and method |
| 03/27/2002 | EP1191194A2 Valve for a control muffler |
| 03/27/2002 | EP1190163A2 Muffler with acoustic barrier material for limited clearance pneumatic device applications |
| 03/21/2002 | WO2002023099A1 Sound absorbent |
| 03/21/2002 | WO2002023019A1 Device for treating waste gases resulting from technical combustion processes |
| 03/21/2002 | WO2002023018A1 Exhaust system having angled baffle |
| 03/21/2002 | US20020033304 Muffler for an engine |
| 03/21/2002 | US20020033303 Valve for a control muffler |
| 03/21/2002 | US20020033302 Controllable muffler system for internal combustion engine |
| 03/21/2002 | US20020033018 Engine exhaust assembly for a motorcycle |
| 03/20/2002 | EP1108122B1 Device for catalytic exhaust gas purification |
| 03/20/2002 | CN1340659A Spiral silencer |
| 03/14/2002 | US20020029928 Exhaust silencer |
| 03/14/2002 | US20020029807 Pressure sensible valve for exhaust muffler and method of assembling same |
| 03/14/2002 | DE10104293A1 Silencer insert for motor vehicle exhaust systems or mufflers, especially for motor cycles, has controled flap near outlet allowing flow to outlet bypassing one or more chambers when open |
| 03/14/2002 | DE10042542A1 Abgasreinigungssystem für Kraftfahrzeuge, insbesondere Diesel-Nutzfahrzeuge Emission control system for motor vehicles, in particular diesel commercial vehicles |
| 03/14/2002 | DE10020491A1 Schalldämpferanlage eines Kraftfahrzeuges mit variabler Dämpfungscharakteristik Exhaust system of a motor vehicle with variable damping characteristic |
| 03/13/2002 | EP1186756A2 Pressure sensible valve for exhaust muffler and method of assembling same |
| 03/13/2002 | EP1186755A2 Exhaust silencer |
| 03/13/2002 | CN1080820C Silencing apparatus with catalyst inside |
| 03/12/2002 | US6354398 Mufflers for use with engine retarders; and methods |
| 03/07/2002 | DE10042145A1 Abgasschalldämpfer für eine Brennkraftmaschine Exhaust muffler for an internal combustion engine |
| 03/06/2002 | EP1184543A2 Exhaust purification system for motor vehicles, particularly Diesel utility vehicles |
| 03/06/2002 | EP1183446A1 Muffler with acoustic absorption insert for limited clearance pneumatic device applications |
| 03/06/2002 | EP1051562B1 Silencer with a shunt resonator |
| 03/05/2002 | US6352068 Method and apparatus for reducing oxides of nitrogen in the exhaust gas of an internal combustion engine |
| 02/28/2002 | US20020023799 Exhaust gas muffler for an internal combustion engine |
| 02/28/2002 | US20020023435 Exhaust cleaning system for motor vehicles, especially diesel-powered utility vehicles |
| 02/28/2002 | US20020023346 Method of sheet metal construction for thin boom tube exhaust pipes |
| 02/27/2002 | CN2479343Y Sound-absorbing cylinder head cover |
| 02/27/2002 | CN2479218Y Modular structural catalytic silencer |
| 02/27/2002 | CN2479217Y Exhaust silencer assembly for vehicle |
| 02/26/2002 | US6349541 Exhaust silencer for an internal combustion engine and the method of operation |
| 02/21/2002 | WO2002014561A1 Engine silencer for controlling back pressure and gas leakage |
| 02/21/2002 | US20020022416 Personal watercraft having an improved exhaust system |
| 02/21/2002 | US20020020581 Marine engine silencer |
| 02/14/2002 | DE10137239A1 Car exhaust pipe noise reduction system having loudspeakers with adjustment mechanism exhaust tubes associated and connected together forming modular unit. |
| 02/13/2002 | CN2476701Y Tunnel casing device for reducing outer noise of engine front-mounted bus |
| 02/12/2002 | US6345687 Tube end closure |
| 02/07/2002 | WO2002010563A1 Device for cleaning exhaust gases |
| 02/07/2002 | WO2002010561A1 Transverse partition for exhaust volume |
| 02/07/2002 | WO2002010560A1 Device for active attenuation of sound waves produced by an exhaust line |
| 02/07/2002 | DE10036190A1 Exhaust gas purification unit used for diesel engines of locomotives comprises filtering device having loose filter particles |
| 02/07/2002 | DE10036186A1 Sound damping device used in roofs of diesel locomotives comprises discrete gas permeable fabric layer |
| 02/06/2002 | EP1178187A1 Low cost muffler |
| 02/06/2002 | EP1177368A1 Manifold arrangement for exhaust systems |
| 02/06/2002 | CN2475837Y Sound-lowing cover for compressor |
| 02/06/2002 | CN2475836Y Natural gas exhaust silencer for engine |
| 02/06/2002 | CN2475835Y Silencer for air cooled condenser |
| 02/06/2002 | CN1078927C Resonance exhaust silencer |
| 02/05/2002 | US6343673 Turbine exhaust structure for vehicle |
| 02/05/2002 | US6343672 Blowdown and venting jet noise suppressor |
| 01/31/2002 | US20020011065 Gas turbine exhaust passage and damper system for same |
| 01/31/2002 | DE10034243A1 Schalldämpfer für den Ein- und/oder Ablass in bzw. aus Druckluftsystemen Silencer for the inlet and / or outlet to or from compressed air systems |
| 01/30/2002 | EP1176293A2 Marine wet exhaust system |
| 01/30/2002 | CN2474732Y Silencer |
| 01/30/2002 | CN2474731Y Corrugated pipe suction resistance sound eliminator |
| 01/30/2002 | CN1333419A Computer controlled silencer |
| 01/29/2002 | US6341664 Exhaust muffler with stamp formed internal assembly |
| 01/29/2002 | US6341663 Silencer with a shunt resonator |
| 01/24/2002 | WO2002006643A2 A multiple layer fiber filled sound absorber and a method of manufacturing the same |
| 01/24/2002 | WO2001014695A3 Muffler with acoustic barrier material for limited clearance pneumatic device applications |
| 01/24/2002 | DE10034557A1 Ventil in einer abgas-Schalldämpfer-Anlage eines Kraftfahrzeugs Valve in an exhaust muffler system of a motor vehicle |
| 01/24/2002 | CA2413724A1 A multiple layer fiber filled sound absorber and a method of manufacturing the same |
| 01/17/2002 | US20020006342 Discharge muffler of a hermetic rotary compressor |
| 01/17/2002 | US20020005318 Valve in an exhaust gas muffler device of a motor vehicle |
| 01/17/2002 | DE10132164A1 Silencer for an internal combustion engine |
| 01/16/2002 | EP1172548A2 Silencer for intake and/or exhaust in respect of compressed air systems |
| 01/16/2002 | EP1172530A1 Valve in an exhaust gas silencer device in a vehicle |
| 01/16/2002 | CN2471934Y Silencer |
| 01/15/2002 | US6338246 Exhaust passage control valve |
| 01/10/2002 | WO2002002915A1 Muffler with energy gaining apparatus |
| 01/10/2002 | WO2001042630A3 Apparatus for treating a gas system |
| 01/10/2002 | US20020003060 Methods and systems for low temperature cleaning of diesel exhaust and other incomplete combustion products of carbon-containing fuels |