Patents by Inventor Konrad Lummerzheim

Konrad Lummerzheim 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).

  • Internal combustion engine having an afterburning device
    Patent number: 4215538
    Abstract: An internal combustion engine has at least one outlet passage for exhausting the burned gases, terminating at the exterior surface of the engine, and, alternatively, connectable to the afterburning device or to a by-pass line by-passing the afterburning device. A control regulated as a function of temperature is provided to direct the burned gases through the by-pass line at high temperature and through the afterburning device at low temperature.
    Type: Grant
    Filed: July 6, 1978
    Date of Patent: August 5, 1980
    Assignee: Audi NSU Auto Union Aktiengesellschaft
    Inventors: Johannes Steinwart, Konrad Lummerzheim, Armin Bauder, Gottlieb Wilmers
  • Piston of light metal for a rotary piston combustion engine
    Patent number: 3989423
    Abstract: A piston of light metal for a rotary piston combustion engine of trochoid type is rotatably mounted on the eccentric of an eccentric shaft. A hollow steel gear is arranged coaxially with the axis of rotation of the piston and is in engagement with a stationary pinion fixed to the housing coaxially with the axis of rotation of the eccentric shaft.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: November 2, 1976
    Assignees: Audi NSU Auto Union Aktiengesellschaft, Wankel GmbH
    Inventors: Max Rue, Horst Ehemann, Konrad Lummerzheim