Patents by Inventor Gunter Kapolke

Gunter Kapolke 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).

  • Patent number: 4768719
    Abstract: Fuel injection nozzle for internal combustion engines includes a first closing spring which acts continuously on the valve needle by means of a central pressure pin and, in addition, a second closing spring which acts continuously on the valve needle by means of a pressure piece after covering the distance of an initial stroke. The pressure piece is supported at the nozzle body by means of an intermediate bush during the initial stroke. The initial stroke is limited by means of the shoulders at the valve needle and the intermediate bush, whereas the total stroke is limited by means of the shoulders at the intermediate bush and the intermediate disk. Accordingly, the initial stroke can be adjusted very accurately to a desired magnitude merely by means of grinding the valve needle and does not change during the assembly of the injection nozzle.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: September 6, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Max Straubel, Ewald Eblen, Paul Fussner, Gunter Kapolke, Edgar Schneider, Klaus Wolf, Werner Wagner, Karl Hofmann