Patents by Inventor G{umlaut over (u)}nter Lewentz

G{umlaut over (u)}nter Lewentz 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 valve with control valve
    Patent number: 6168132
    Abstract: The injection valve has a control valve with a control chamber in which a closing member is disposed. The closing member is pressed against a corresponding sealing seat by a pressure (e.g. fuel pressure) in the control chamber. The closing member merges into a rod that passes through a drain hole and is connected to a spring plate. The spring plate is preloaded against the housing by a compression spring in such a way that the closing member is pressed against an associated sealing seat. The closing member can be raised from the sealing seat by an actuator piston which rests against the spring plate.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: January 2, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Frank, G{umlaut over (u)}nter Lewentz, J{umlaut over (u)}rgen Rink, Gerd Schmutzler, Joachim Vendulet