Patents by Inventor Tiegang Fang

Tiegang Fang 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 injection device for an internal combustion engine, and associated method
    Patent number: 9316189
    Abstract: A fuel injection device and associated method are provided. An injector body defines an axial bore and has a nozzle exit extending into the combustion chamber. The injector body receives fuel within the bore and channels the fuel through the nozzle exit into the combustion chamber. A flow rate control member is movably disposed within the injector body bore and is actuatable by a first actuator to move with respect to and to interact with the nozzle exit to control a flow rate of the channeled fuel. A pintle member is movably disposed within a flow rate control member bore and is actuatable by a second actuator, independently of the flow rate control member, to move with respect to the flow rate control member and to interact with the nozzle exit to control a spray angle of the channeled fuel. The flow rate and spray angle are thereby independently controllable.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: April 19, 2016
    Assignee: North Carolina State University
    Inventors: Gregory D. Buckner, Tiegang Fang
  • FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE, AND ASSOCIATED METHOD
    Publication number: 20110005499
    Abstract: A fuel injection device and associated method are provided. An injector body defines an axial bore and has a nozzle exit extending into the combustion chamber. The injector body receives fuel within the bore and channels the fuel through the nozzle exit into the combustion chamber. A flow rate control member is movably disposed within the injector body bore and is actuatable by a first actuator to move with respect to and to interact with the nozzle exit to control a flow rate of the channeled fuel. A pintle member is movably disposed within a flow rate control member bore and is actuatable by a second actuator, independently of the flow rate control member, to move with respect to the flow rate control member and to interact with the nozzle exit to control a spray angle of the channeled fuel. The flow rate and spray angle are thereby independently controllable.
    Type: Application
    Filed: January 12, 2009
    Publication date: January 13, 2011
    Applicant: NORTH CAROLINA STATE UNIVERSITY
    Inventors: Gregory D. Buckner, Tiegang Fang