Patents by Inventor Bernard Vethacke

Bernard Vethacke 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).

  • Patent number: 6129064
    Abstract: A liquid-cooled cylinder head for a multicylinder internal combustion engine. The cylinder head has a coolant chamber in which gas exchange passages running in the direction of a transverse engine axis and at least one chamber for a spark plug and/or an injection nozzle are arranged. Also, bolt pipes for distributing the bolt tension forces of the cylinder head bolts are provided, the cylinder head being joinable to a crankcase of the internal combustion engine with interposition of a cylinder head seal. The bolt pipes have ribs formed by thickened configurations of adjacent wall sections of the gas exchange passages in the region of the cylinder head bolt. A high, uniform surface pressure on the cylinder head seal is thereby enabled, even in the regions between the cylinder head bolts, and even when space is restricted.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: October 10, 2000
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Klaus Berner, Wolfgang Kizler, Roland Meyer, Bernard Vethacke