Patents by Inventor Gerhard Grammes

Gerhard Grammes 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).

  • Diesel engine
    Patent number: 4434758
    Abstract: In a turbulence chamber diesel engine, fuel consumption, smoke and noise are reduced by a transfer port arrangement having a plano-convex lens-like cross section with rounded off edges in which a convex side is disposed inwardly toward the cylinder axis and a flat side is disposed outwardly toward the cylinder periphery, the port cross-sectional area equals about 1% to 0.7% of that of the cylinder and the port angle of entry with the cylinder closed end is about 37.degree. to 44.degree..
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: March 6, 1984
    Assignee: General Motors Corporation
    Inventor: Gerhard Grammes