Patents by Inventor Daren N. Bolbolan

Daren N. Bolbolan 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 for an internal combustion engine
    Patent number: 6776143
    Abstract: A fuel injector pump in a direct-injection fuel delivery system for an internal combustion engine including a solenoid valve for controlling transfer of fluid from a high pressure chamber to a fuel injector nozzle. A supply passage and a return passage provide a fuel flow circuit for the fuel delivery system, the high pressure chamber being defined in part by a camshaft-driven plunger. An independent fuel leak flow path is provided to accommodate fuel leakage past a plunger of the pump, the fuel leak flow path extending to a zero pressure fuel tank.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: August 17, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Scott A. Goodenough, Tim D. Haas, Thomas K. Rapp, Aaron M. Jacobs, Michael T. Dillane, Gregg R. Spoolstra, Daren N. Bolbolan
  • Fuel injector for an internal combustion engine
    Publication number: 20030159680
    Abstract: A fuel injector pump in a direct-injection fuel delivery system for an internal combustion engine including a solenoid valve for controlling transfer of fluid from a high pressure chamber to a fuel injector nozzle. A supply passage and a return passage provide a fuel flow circuit for the fuel delivery system, the high pressure chamber being defined in part by a camshaft-driven plunger. An independent fuel leak flow path is provided to accommodate fuel leakage past a plunger of the pump, the fuel leak flow path extending to a zero pressure fuel tank.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 28, 2003
    Inventors: Scott A. Goodenough, Tim D. Haas, Thomas K. Rapp, Aaron M. Jacobs, Michael T. Dillane, Gregg R. Spoolstra, Daren N. Bolbolan