Patents by Inventor Peter Langenberger

Peter Langenberger 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 valve
    Patent number: 4033507
    Abstract: A fuel injection valve for an internal combustion engine has a main fuel valve formed by a needle urged against a valve seat by a spring and also includes a solenoid to pull the valve needle away from the seat for fuel metering purposes. In addition, the valve has an extension in which a pestle with two enlarged ends is axially carried in two spring support cups. The enlarged ends of the pestle also act as valves in such a manner that even low fuel-flow causes a fluttering of the pestle, resulting in good fuel atomization.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: July 5, 1977
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Fromel, Peter Langenberger