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
Method of controlling semiconductor device, signal processing method, semiconductor device, and electronic apparatus
Vehicle control apparatus
Wireless network device including a polarization and spatial diversity antenna system
Bi-directional, compact, multi-path and free space channel replicator
System and method for enabling image recognition and searching of remote content on display
Pharmaceutical treatment process using chitosan or derivative thereof
  Randomly Featured Patents
Photosensitive microencapsulated toner
Tire for motorcycle
Device for needleless injection operating with two concentric energetic materials
DC/DC converter with inductor current sensing capability
Semi-solid processing of beryllium-containing alloys of magnesium
Control systems for sailing vessels
Washer with integral flap and fastening assembly combining fastener with such washer
Propagating keys from servers to clients
Belt mounted fishing pole holder
System and method for piecewise streaming of video using a dedicated overlay network