Patents by Inventor Gordon Cheever

Gordon Cheever 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).

  • Solenoid driver with high-voltage boost and reverse current capability
    Publication number: 20060238949
    Abstract: Prior to the operation of a solenoid type of fuel injector, a DC voltage is applied across the injector to create a current through the injector that is below the activation current of the injector. A capacitor is then placed in series with the injector and the flyback energy from the injector transfers a charge onto the capacitor. When the injector current drops to a predetermined level, the capacitor is removed from the circuit and isolated. This process is repeated until a minimum charge is on the capacitor. By placing the capacitor charge onto the injector at the time that the injector is to be activated, the opening response of the injector is improved. By applying the charge on the capacitor to the injector in a manner to neutralize the eddy currents when the voltage across the injector is removed, the closing response is improved.
    Type: Application
    Filed: April 26, 2005
    Publication date: October 26, 2006
    Inventor: Gordon Cheever
  • Method for controlling a dual coil fuel injector
    Publication number: 20050045157
    Abstract: A method for controlling a dual coil fuel injector having an opening coil and a closing coil includes issuing an opening coil pulse to the opening coil. The opening coil pulse has an opening coil pulse width (OCPW) and an opening coil turn on time (OCTOT). A closing coil turn on time (CCTOT) is calculated dependent at least in part upon the OCPW. A closing coil pulse is issued to the closing coil at the calculated CCTOT.
    Type: Application
    Filed: October 4, 2004
    Publication date: March 3, 2005
    Inventors: Harry Mieny, Eugene Kobos, Gordon Cheever
  • Method and apparatus for controlling a dual coil fuel injector
    Patent number: 6799559
    Abstract: A method for controlling a dual coil fuel injector having an opening coil and a closing coil includes issuing an opening coil pulse to the opening coil. The opening coil pulse has an opening coil pulse width (OCPW) and an opening coil turn on time (OCTOT). A closing coil turn on time (CCTOT) is calculated dependent at least in part upon the OCPW. A closing coil pulse is issued to the closing coil at the calculated CCTOT.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: October 5, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Harry R. Mieny, Eugene A. Kobos, Gordon Cheever, Jr.
  • Method and apparatus for controlling a dual coil fuel injector
    Publication number: 20040040544
    Abstract: A method for controlling a dual coil fuel injector having an opening coil and a closing coil includes issuing an opening coil pulse to the opening coil. The opening coil pulse has an opening coil pulse width (OCPW) and an opening coil turn on time (OCTOT). A closing coil turn on time (CCTOT) is calculated dependent at least in part upon the OCPW. A closing coil pulse is issued to the closing coil at the calculated CCTOT.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: Harry R. Mieny, Eugene A. Kobos, Gordon Cheever