Patents by Inventor Nathan Peter Keeler

Nathan Peter Keeler 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
    Patent number: 9470196
    Abstract: The present invention relates to a fuel injector for use in a fuel system of an internal combustion engine. The fuel injector has a supply passage for high pressure fuel and an injection nozzle. The injection nozzle includes a valve needle which can engage with a valve needle seating to control fuel delivery from the fuel injector. A first control valve is provided for controlling fuel pressure within a control chamber to control the valve needle. The fuel injector also includes a second control valve for controlling fuel pressure within a low pressure drain. The invention also relates to a control valve for controlling fuel pressure within a low pressure drain.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 18, 2016
    Assignee: Delphi International Operations Luxembourg SARL
    Inventor: Nathan Peter Keeler