Patents by Inventor Haijun Kang

Haijun Kang 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).

  • Fuel injector having recessed check top
    Patent number: 7415969
    Abstract: A fuel injector for a machine is disclosed. The fuel injector has a nozzle member with a first end and a second end. The first end of the fuel injector has at least one orifice. The fuel injector also has a control chamber located at the second end of the nozzle member with an end wall portion approximately orthogonal to an axial direction of the nozzle member. The fuel injector further has a port disposed in the end wall portion of the control chamber and at least one passageway in fluid communication with the control chamber via the port. The fuel injector additionally has a needle valve element with a tip end and a base end. The tip end is configured to selectively block fuel flow through the at least one orifice. The base end has a recess configured to cap off the port.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: August 26, 2008
    Assignee: Caterpillar Inc.
    Inventors: Jinhui Sun, Dennis H. Gibson, Haijun Kang
  • Fuel injector having recessed check top
    Publication number: 20070199544
    Abstract: A fuel injector for a machine is disclosed. The fuel injector has a nozzle member with a first end and a second end. The first end of the fuel injector has at least one orifice. The fuel injector also has a control chamber located at the second end of the nozzle member with an end wall portion approximately orthogonal to an axial direction of the nozzle member. The fuel injector further has a port disposed in the end wall portion of the control chamber and at least one passageway in fluid communication with the control chamber via the port. The fuel injector additionally has a needle valve element with a tip end and a base end. The tip end is configured to selectively block fuel flow through the at least one orifice. The base end has a recess configured to cap off the port.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 30, 2007
    Inventors: Jinhui Sun, Dennis Gibson, Haijun Kang