Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01N - Gas-flow silencers or exhaust apparatus for machines or engines in general; Gas-flow silencers or exhaust apparatus for internal-combustion engines › F01N 1 - Silencing apparatus characterised by method of silencing
Patents for F01N 1 - Silencing apparatus characterised by method of silencing (8,998)
11/1999
11/03/1999EP0953736A2 Insert for a silencer and method for producing it
11/03/1999EP0784845A4 Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors
11/03/1999CN1233707A Low resistance and high efficiency silencer
10/1999
10/26/1999US5972299 Catalytic member installed in an exhaust pipe of a motorcycle for converting exhaust toxic gases to nontoxic gases, liquid petroleum gas heating means including an air mixer, liquid petroleum gas tank, controller
10/26/1999US5971098 Muffler for internal combustion engine
10/26/1999US5971097 Muffler for motor vehicles
10/20/1999EP0950460A1 Method for the production of a housing of a silencer, and such a housing
10/20/1999CN2344550Y High-effective waste gas cleaning muffler for motor vehicle
10/19/1999US5969299 Exhaust system for vehicle
10/19/1999US5967193 Flexible pipe unit for use in exhaust pipe line of automotive engine
10/13/1999EP0949407A1 Exhaust apparatus of vehicles
10/13/1999EP0948709A1 Internal combustion engine
10/13/1999CN2343349Y Straight-type multi-porous silencing chamber
10/12/1999US5966452 Sound reduction method and system for jet engines
10/07/1999WO1999050539A2 A silencer and a method of operating a vehicle
10/07/1999DE19912466A1 Exhaust gas system for vehicle with seat saddle
10/07/1999CA2373774A1 A silencer and a method of operating a vehicle
10/06/1999CN2342102Y Punctured board-inner insert tube type reflux three cavity silencer
10/06/1999CN2342101Y Exhaust gas silencer for diesel engine
10/06/1999CN1230626A Exhaust apparatus of saddle-type vehicle
10/06/1999CN1045484C Exhaust unit of internal combustion engine
10/05/1999US5962822 Muffler/exhaust extractor and method
10/05/1999US5962821 Internal combustion engine noise reduction apparatus
09/1999
09/30/1999WO1999049218A1 Discharge silencer provided with drain recovering function
09/30/1999WO1999048661A1 Thin mineral fibre components, method and mould for making same by vacuum suction
09/29/1999CN2340902Y Assembled motorcycle silencer
09/28/1999US5959263 Bypass muffler
09/28/1999US5959262 Exhaust-gas muffler
09/28/1999US5957230 Cooling system for snowmobile engine
09/16/1999WO1999046147A1 Vibration-damping, noise-reducing and heat-shielding vehicle lining
09/15/1999EP0941441A2 Method and apparatus for making preforms from glass fiber strand material
09/14/1999US5952625 To attenuate sounds of combustion gases exhausted from an ic engine
09/14/1999US5952624 Noise attenuator
09/14/1999US5952623 Pneumatic hand tool exhaust muffler
09/10/1999WO1999044722A1 Apparatus for reducing contaminants in a pulsating exhaust gas
09/07/1999US5949989 Method of designing and developing engine induction systems which minimize engine source noise
09/07/1999US5949890 Active noise control apparatus and waveform transforming apparatus through neural network
09/07/1999US5949035 Stamp-formed muffler having a unitary inner cartridge
09/02/1999WO1999043934A1 Method for treating an internal combustion engine exhaust gases and associated exhaust line
09/01/1999EP0939577A2 Loudspeaker pressure plate
09/01/1999EP0939393A2 Modular active silencer with port dish
09/01/1999EP0939207A1 New catalytic unit for the treatment of the exhaust gas of an internal combustion engine
08/1999
08/24/1999US5941069 For a combustion engine
08/19/1999WO1999041491A1 Mufflers for use with engine retarders; and methods
08/19/1999DE19806219A1 Adjustment mechanism for motorcycle silencers to steplessly adjust acoustic spectrum
08/19/1999CA2318534A1 Mufflers for use with engine retarders; and methods
08/17/1999US5939212 Flexible corrugated multilayer metal foil shields and method of making
08/12/1999WO1999040297A2 Aluminum muffler and method of manufacture
08/11/1999EP0935057A1 Pipe section running along a curve
08/11/1999EP0934457A1 Gas flow silencer
08/10/1999US5936210 For use in the attenuation of sound waves
08/10/1999US5934959 Marine muffler
08/05/1999WO1999039087A1 Stamped-formed muffler apparatus and assembly process
08/05/1999DE19807538A1 Noise-damping air suction tube for road vehicle stand heating
07/1999
07/29/1999DE19902915A1 Silencer for internal combustion engine
07/28/1999EP0931971A1 Sound proofing and insulating material, process for its production and articles using said material
07/28/1999EP0931913A1 Exhaust silencer for internal combustion engines
07/28/1999CN1224110A Silencer for two-wheeled motorcycle etc.
07/27/1999US5930371 Tunable acoustic system
07/27/1999US5929398 Muffler device
07/27/1999US5926954 Method of making a silencer
07/22/1999WO1999036680A1 Improved high performance muffler
07/22/1999WO1999036679A1 Pneumatic hand tool exhaust muffler
07/15/1999WO1999035378A1 A silencer
07/14/1999CN2328796Y Tail gas noise clearing device for motor vehicle
07/14/1999CN2328795Y 消音器 Silencer
07/14/1999CN1222635A Tail gas purifying and noise silencing device for motor vehicle
07/13/1999US5921081 Motor vehicle muffler
06/1999
06/30/1999EP0926320A2 Method for manufacturing an absorption silencer
06/30/1999EP0925984A1 Exhaust system for a motor vehicle, as well as motor vehicle and process for making an exhaust system
06/30/1999CN2326729Y Low-fall explosion-proof silencing dust-controlling tail-gas tube
06/29/1999US5917161 Muffler with variable damping characteristics
06/29/1999US5916132 Engine exhaust emission control system utilizing a catalyst carried in a porous flexible bag
06/29/1999US5916128 Sound deadening and catalyst treating system
06/29/1999US5915677 For use in a flexible pipe unit
06/24/1999WO1999031361A1 Device for the purification of gaseous waste
06/24/1999DE19754840A1 Motor air intake silencer
06/23/1999CN2325519Y Silencing apparatus for exaust of internal combustion engine
06/17/1999DE19753049C1 Acoustic exhaust damper for electro-pneumatic valve
06/16/1999EP0809757A4 Integral threaded turbine outlet
06/16/1999EP0592693B1 Noise control device
06/16/1999CN2324290Y Muffler of gas escape tube
06/16/1999CN2324289Y Power-absorbing muffler
06/15/1999US5912441 Absorption/reflection exhaust muffler
06/09/1999CN1218870A Lubricating device for vehicle engine
06/03/1999WO1999027238A1 Silencer
06/03/1999WO1999027237A1 Silencer with a shunt resonator
06/02/1999DE19751596A1 Active noise damper for automobile exhaust
06/01/1999US5909016 Pneumatic hand tool exhaust muffler
06/01/1999US5907904 For vehicles
05/1999
05/27/1999WO1999025962A1 Device and method for sound-attenuating units
05/26/1999EP0918144A2 Muffler for small general-purpose engine
05/25/1999US5907135 Exhaust muffler
05/19/1999EP0916818A2 A silencer
05/19/1999EP0916817A2 Active silencer
05/19/1999EP0916391A1 Mixing device and flue gas channel provided therewith
05/18/1999CA2026336C Muffler for an internal combustion engine
05/14/1999WO1999023368A1 Muffler with gas-dispersing shell and sound-absorption layers
05/14/1999WO1999023367A1 Sound muffling material and method of making thereof
05/12/1999CN2318406Y Purification silencer
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