Patents by Inventor Hermann Zelenka

Hermann Zelenka 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: 3935846
    Abstract: A system for the digital-electronic control of the inlet-, exhaust and possibly injection valves as well as of the ignition of internal combustion engines, especially of motor vehicle internal combustion engines, in which the valves are electromagnetically actuated and the respective crankshaft position is adapted to be detected digitally; a fixed value memory or storage device is provided in which at least for one cylinder the opening and closing instants of the inlet, exhaust, and possibly of the injection valves and/or of the ignition instants are at least partly adapted to be stored and selected as digital values coordinated to the respective operating conditions and corresponding to a predetermined crankshaft position in the form of data sets; a storage register is provided for each stored value of a data set to which this stored value is adapted to be transferred; a pulse comparison unit is also provided for each value of a data set in which the value either stored in the storage register or fixedly pre
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: February 3, 1976
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Hermann Zelenka