Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Methods and compositions for wound healing
Using network labels without standard-defined syntax and semantics
Optimization of packaging sizes
Cosmetic/dermatological compositions comprising naphthoic acid compounds and polyurethane polymers
Housing for gas flow indicator
LED package chip classification system
LO generation with deskewed input oscillator signal
  Randomly Featured Patents
Resistance-change memory
Systems, methods and apparatus for an endo-rectal receive-only probe
Fiber optic repeater
Bi-chambered magnetic igloo
Toner for development of electrostatic latent images
Connector, connector assembling system and method of assembling a connector
Electro-acoustic transducer
Carriages incorporating vertically adjustable wheel assemblies
Sound barrier wall
Process for determining the activity of a palladium-tin catalyst