Patents by Inventor Klaus Wichart

Klaus Wichart 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).

  • Variable valve control system for a piston internal-combustion engine
    Patent number: 4714057
    Abstract: In a variable valve control system for an internal-combustion engine, having an intake valve actuated by a valve lever that can be pivoted around a shiftable bearing point, a lift camshaft and a control camshaft are provided. The camshafts control the pivoting of the valve lever. The system also includes a device for phase-shifting the control camshaft relative to the lift camshaft in response to operating parameters of the internal-combustion engine. This provides for premature closing of the intake valve.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: December 22, 1987
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Klaus Wichart