Patents by Inventor Wolfgang Schaffitz

Wolfgang Schaffitz 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
    Patent number: 4712528
    Abstract: A fuel injection system for dosing and atomizing fuel under high pressure into the cylinders of an internal combustion engine has a continuously operating, controllable-flow-rate fuel pump and at least one adjusting drive associated with injection nozzles respectively for each cylinder of the engine. The flow rate of the fuel pump is controlled by the sum of the fuel quantities to be fed per unit time to all of the injection nozzles for controlling the fuel dose injected into each cylinder. The adjusting drive at least opens a fuel path to the injection nozzle for each cylinder at the correct time to control the injection timing. Separating the dose and timing controls in this way simplifies the structure required for both controls.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: December 15, 1987
    Assignee: Institut fur Motorenbau Professor Huber e.V.
    Inventor: Wolfgang Schaffitz
  • Fuel injection nozzle for internal combustion engines with internal mixing
    Patent number: 4177948
    Abstract: Cavitation-induced wear-enlargement of the injection hole bores of fuel injection nozzles is prevented by providing gas passage bores which interconnect the combustion compartment and the injection hole bores at downstream locations adjacent the inlet ends of the injection hole bores.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: December 11, 1979
    Assignee: Institut fur Motorenbau Professor Huber Eingetragener Verein
    Inventors: Wolfgang Schaffitz, Eugen W. Huber, deceased