Patents by Inventor Hans-Joerg Hermanns

Hans-Joerg Hermanns 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).

  • Combustion engine having a variable compression ratio
    Patent number: 5595146
    Abstract: A combustion engine. The engine includes an engine housing; at least one cylinder disposed in the engine housing; and a crank drive including: a crankshaft having a crank; and a piston being axially displaceable within the cylinder. The crank drive further includes a connecting rod which has an upper connecting rod part hinged to the piston; and a lower connecting rod part hinged to the crank. The lower connecting rod part is hinged to the upper connecting rod part. A central joint hinges the upper connecting rod part and the lower connecting rod part to one another, a longitudinal axis of the upper connecting rod part further being defined by a line connecting the central joint with a hinge joint of the upper connecting rod part to the piston.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: January 21, 1997
    Assignee: FEV Motorentechnik GmbH & Co. Kommanditgesellschaft
    Inventors: Christoph Bollig, Hans-Joerg Hermanns, Torsten Schellhase, Frank Widmann