Patents by Inventor Manfred Hoecker

Manfred Hoecker 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).

  • Injection pump with preinjection
    Patent number: 4881506
    Abstract: The injection pump provides preinjection only during engine idling and partial load. This is achieved by providing a main release opening and an auxiliary release opening in the pump cylinder which appropriately register with first and second release grooves in a pump plunger which is rotatable between full load and low idle positions.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: November 21, 1989
    Assignee: Kloeckner-Humboldt-Deutz AG
    Inventor: Manfred Hoecker