Patents by Inventor Gottfried Hatz

Gottfried Hatz 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).

  • Injection internal combustion engine
    Patent number: 3946712
    Abstract: An improvement in an injection internal combustion engine having at least one fuel injection pump therein which is connected to the fuel supply tank through a suction conduit having a check valve connected in circuit therewith. Fuel which is not injected into the internal combustion engine is returned to the supply tank through another check valve located in a separate conduit from the suction conduit. The check valve in the separate conduit, when it is in its seated position, permits a small flow of fuel between the injection pump and the separate conduit.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: March 30, 1976
    Assignee: Motorengabrik Hatz KG.
    Inventors: Gottfried Hatz, Heinz Eibl