Patents by Inventor Karl Kellermann

Karl Kellermann 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 injection pump for internal combustion engines
    Patent number: 5188075
    Abstract: The invention is based on a fuel injection pump in which an adjuster, which may also be an injection onset adjuster, is actuated via an adjusting mechanism, and the adjusting mechanism has an adjusting piston, which is displaceable in a cylinder and is adjustable counter to a restoring force by a pressure fluid. The delivery of pressure fluid to the adjusting piston is controlled via electric valves, making a graduated, geometrically defined adjustment of the adjusting piston possible, but no feedback sensors for the actual status of the adjusting mechanism at a given time are required.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: February 23, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Max Straubel, Karl Kellermann