Patents by Inventor Junru Azam

Junru Azam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Valve assembly having multiple rate shaping capabilities and fuel injector using same
    Patent number: 6935580
    Abstract: Engineers have determined that the performance of fuel injectors, including those used in common rail fuel injection systems, can be increased, and undesirable emissions reduced, by controlling the mass flow rate of fuel injected into a combustion chamber during an injection event. While a number of fuel injectors have been developed that have limited rate shaping capabilities, the ability to produce some front end rate shapes has not been possible. In an effort to increase rate shaping capabilities, the present invention includes a valve assembly having at least one valve member that is movable between a plurality of positions to control fluid communication between a number of fluid inlets and outlets.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: August 30, 2005
    Assignee: Caterpillar Inc
    Inventors: Junru Azam, Edward R. Gillis
  • Valve assembly having multiple rate shaping capabilities and fuel injector using same
    Publication number: 20040159716
    Abstract: Engineers have determined that the performance of fuel injectors, including those used in common rail fuel injection systems, can be increased, and undesirable emissions reduced, by controlling the mass flow rate of fuel injected into a combustion chamber during an injection event. While a number of fuel injectors have been developed that have limited rate shaping capabilities, the ability to produce some front end rate shapes has not been possible. In an effort to increase rate shaping capabilities, the present invention includes a valve assembly having at least one valve member that is movable between a plurality of positions to control fluid communication between a number of fluid inlets and outlets.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 19, 2004
    Inventors: Junru Azam, Edward R. Gillis