Patents by Inventor Karl-Josef Casper

Karl-Josef Casper 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 with at least two liquid cooled cylinders
    Patent number: 4672923
    Abstract: Each cylinder of a liquid cooled in-line internal combustion engine includes a cylinder pipe surrounded by an annular cooling chamber. The cooling chambers are interconnected in series by crossover passages between adjacent cylinder pipes and the cooling chambers have a greater cross sectional flow area on one side of the longitudinal central plane of the engine than on the other side. This cross sectional flow area relationship is reversed from cylinder to cylinder to thereby cause a meandering course of flow for a portion of the coolant thereby assuring adequate flow around the entire surface of the cylinder pipe and good flushing of the crossover passages between the cylinder pipes.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: June 16, 1987
    Assignee: Kloeckner-Humboldt-Deutz AG
    Inventors: Jurgen Wahnschaffe, Ernst-Siegfried Hartmann, Karl-Josef Casper, Achim zur Nieden, Herbert Schleiermacher