Patents by Inventor Stefan Zaensch

Stefan Zaensch 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).

  • Piston fuel pump for an internal combustion engine
    Patent number: 10400727
    Abstract: A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston that is configured to be axially displaced in the pump cylinder. A working chamber is defined by the pump piston. A seal is provided on the pump cylinder, which seals the working chamber counter to a low pressure region. The seal is applied directly to the pump piston by an injection molding method.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 3, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Jochen Kaesser, Bernd Beiermeister, Soeren Stritzel, Wolfgang Ochs, Ralf Assmann, Heiko Jahn, Christian Preissner, Achim Laub, Peter Ropertz, Stefan Zaensch
  • Piston Fuel Pump for an Internal Combustion Engine
    Publication number: 20170306912
    Abstract: A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston that is configured to be axially displaced in the pump cylinder. A working chamber is defined by the pump piston. A seal is provided on the pump cylinder, which seals the working chamber counter to a low pressure region. The seal is applied directly to the pump piston by an injection molding method.
    Type: Application
    Filed: December 4, 2015
    Publication date: October 26, 2017
    Inventors: Jochen Kaesser, Bernd Beiermeister, Soeren Stritzel, Wolfgang Ochs, Ralf Assmann, Heiko Jahn, Christian Preissner, Achim Laub, Peter Ropertz, Stefan Zaensch