Resources Contact Us Home
Semi-active muffler for internal combustion engine

Image Number 5 for United States Patent #6176347.

A semi-active muffler for an internal combustion engine comprising a case defining a closed space with a predetermined capacity, the case being partitioned into first, second, and third chambers, a first bypass pipe for communicating the first chamber with the third chamber, a second bypass pipe for communicating the second chamber with the third chamber, an inlet pipe for introducing exhaust gas into the first and second chambers, an outlet pipe for exhausting the exhaust gas introduced into the third chamber from the first and second chambers respectively through the first and second bypass pipes, a valve for selectively opening a downstream end of the second bypass pipe according to a pressure level within the second chamber, and buffer means for reducing an impact and noise when the valve is opened and closed, wherein the buffer means comprises a gap kept between the valve and the downstream end of the second bypass pipe even when the valve is in a completely closed position.

  Recently Added Patents
Treatment of active infections and related compositions
Partially replicated, locally searched peer to peer file sharing system
Method of sensing data of a magnetic random access memories (MRAM)
Signal processing apparatus and signal processing method
Apparatus and method for manufacturing lids with tear-off foil
Method and system for modeling external volume changes within an acoustic echo canceller
Detection apparatus for detecting charged particles, methods for detecting charged particles and mass spectrometer
  Randomly Featured Patents
Method and apparatus for data frame synchronization and delineation
Single management point for a storage system or storage area network
Sonet B2 parity byte calculation method and apparatus
Management procedure in wireless communication system and station supporting management procedure
Compensation method of digital image data
Oxodiazine compounds and pharmaceutical compositions thereof
Video recording, transmitting and reproducing with concurrent recording and transmitting or multiple dubbing of copy protected video signals
System and method for amplitude reduction in RF pulse design
Catalytic reactor designed to reduce catalyst slumping and crushing