Patents by Inventor Peter Buthmann

Peter Buthmann 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 charging unit
    Patent number: 4932211
    Abstract: An internal combustion engine charging unit is disclosed which includes a displacement compressor connected to a drive shaft of an internal combustion engine so as to be driven by the internal combustion engine. The displacement compressor is preferably a screw compressor including a main rotor and a secondary rotor. An exhaust gas turbine is connected to an exhaust line of the internal combustion engine. The shaft of the gas turbine is preferably connected to one of the main rotor, secondary rotor or both the main rotor and the secondary rotor.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: June 12, 1990
    Assignee: MAN Gutehoffnungshutte GmbH
    Inventors: Peter Buthmann, Joachim Kotzur
  • Internal combustion engine charging unit
    Patent number: 4926642
    Abstract: An internal combustion engine charging unit is disclosed which includes a displacement compressor connected to a drive shaft of an internal combustion engine so as to be driven by the internal combustion engine. The displacement compressor is preferably a screw compressor including a main rotor and a secondary rotor. An exhaust gas turbine is connected to an exhaust line of the internal combustion engine. The shaft of the gas turbine is preferably connected to one of the main rotor, secondary rotor or both the main rotor and the secondary rotor.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: May 22, 1990
    Assignee: MAN Gutehoffnungshutte, GmbH
    Inventors: Peter Buthmann, Joachim Kotzur