Patents by Inventor Brian E. Uhlenhake

Brian E. Uhlenhake 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).

  • Method of determining the fuel injection timing for an internal combustion engine
    Patent number: 6367456
    Abstract: In one aspect of the present invention, a method is disclosed for controlling the timing at which fuel is to be injected. In response to engine speed and temperature, a desired timing signal is produced. The desired timing angle represents when the start of injection is to occur in order to cause combustion at substantially Top Dead Center (TDC). The timing signal additionally accounts for a predetermined ignition delay from the time that fuel is injected to the start of combustion.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: April 9, 2002
    Assignee: Caterpillar Inc.
    Inventors: Travis E. Barnes, Brian E. Uhlenhake
  • Method of determining the fuel injection timing for an internal combustion engine
    Publication number: 20010047793
    Abstract: In one aspect of the present invention, a method is disclosed for controlling the timing at which fuel is to be injected. In response to engine speed and temperature, a desired timing signal is produced. The desired timing angle represents when the start of injection is to occur in order to cause combustion at substantially Top Dead Center (TDC). The timing signal additionally accounts for a predetermined ignition delay from the time that fuel is injected to the start of combustion.
    Type: Application
    Filed: August 3, 2001
    Publication date: December 6, 2001
    Inventors: Travis E. Barnes, Brian E. Uhlenhake
  • Method for controlling the fuel injection rate of a hydraulically-actuated fuel injection system
    Patent number: 5529044
    Abstract: In one aspect of the present invention, a method is disclosed for controlling the fuel injection rate of a hydraulically-actuated fuel injector. A desired actuating fluid pressure is determined based on the engine speed and temperature. The desired actuating fluid pressure is used to control the fuel injection rate to result in quick engine starting.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: June 25, 1996
    Assignee: Caterpillar Inc.
    Inventors: Travis E. Barnes, Brian E. Uhlenhake