Patents by Inventor ANDREAS WEHNEMANN

ANDREAS WEHNEMANN 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).

  • Valve device for an internal combustion engine
    Patent number: 11846225
    Abstract: A valve device for an internal combustion engine. The valve device includes an actuator which moves a valve rod, a housing with an inlet and an outlet, a valve closing member attached to the valve rod which is lowered onto and lifted off of a first valve seat, a non-return plate which is loaded via a spring force in a direction of a second valve seat, and a sealing lip which is formed on the second valve seat or on the non-return plate. The sealing lip extends from the second valve seat in a direction of the non-return plate or from the non-return plate in a direction of the second valve seat. The sealing lip is formed with a free end which is inclined in a direction of a side on which a higher pressure is applied when the non-return plate rests on the second valve seat.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: December 19, 2023
    Assignee: PIERBURG GMBH
    Inventors: Kai Sassenrath, Halim Celik, Andreas Wehnemann, Berthold Herrmann
  • VALVE DEVICE FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20220282656
    Abstract: A valve device for an internal combustion engine. The valve device includes an actuator which moves a valve rod, a housing with an inlet and an outlet, a valve closing member attached to the valve rod which is lowered onto and lifted off of a first valve seat, a non-return plate which is loaded via a spring force in a direction of a second valve seat, and a sealing lip which is formed on the second valve seat or on the non-return plate. The sealing lip extends from the second valve seat in a direction of the non-return plate or from the non-return plate in a direction of the second valve seat. The sealing lip is formed with a free end which is inclined in a direction of a side on which a higher pressure is applied when the non-return plate rests on the second valve seat.
    Type: Application
    Filed: June 17, 2020
    Publication date: September 8, 2022
    Applicant: PIERBURG GMBH
    Inventors: KAI SASSENRATH, HALIM CELIK, ANDREAS WEHNEMANN, BERTHOLD HERRMANN