Patents by Inventor Helmut Eidtmann

Helmut Eidtmann 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).

  • Fuel injection system for successively introducing multiple fuel quantities in an engine cylinder
    Patent number: 4022165
    Abstract: A fuel injection system which is of the type that introduces with a time lag two separate fuel quantities into the same cylinder prior to ignition includes a metering valve assembly to vary one of said quantities supplied by a fuel injection pump and a fuel injection nozzle associated with each engine cylinder and formed of two separate injection valves; one valve is supplied with fuel directly from said fuel injection pump, while the other valve is supplied from said metering valve assembly.
    Type: Grant
    Filed: November 13, 1969
    Date of Patent: May 10, 1977
    Assignee: Robert Bosch G.m.b.H.
    Inventors: Konrad Eckert, Josef Steiner, Klaus Zeilinger, Helmut Eidtmann