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
Haworthia plant named `CAPETOWN`
Method and apparatus for connecting to external device
Down-drawable, chemically strengthened glass for cover plate
Continuous geospatial tracking system and method
Channel estimating method and device
Method and apparatus for generating soft bit values in reduced-state equalizers
Methods and apparatus for address translation functions
  Randomly Featured Patents
Plasma torch with a lateral injector
Zone-associated objects
Method and apparatus for translating rectilinear information into scan line information for display by a computer system
Ligament attachment method and apparatus
Fluorinated fused aromatics and their use in liquid-crystal mixtures
Food handling implement
Surgical instrument having an articulated jaw structure and a detachable knife
Ultrasonic generating unit having a plurality of ultrasonic transducers
Method of improving efficiency in ruminants
Method for processing fish heads and apparatus for separating processed fish heads