Patents by Inventor Ralf Hentschel

Ralf Hentschel 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: 6382185
    Abstract: A fuel injection valve for a high-pressure injection of fuel from a central high-pressure reservoir into combustion chambers of an internal combustion engine, wherein, by means of an inlet throttle bore, the high-pressure reservoir is operationally connected to a control chamber which controls the opening and closing of the fuel injector, and wherein the control chamber communicates with an on-off valve by means of an outlet throttle bore. The inlet throttle bore is aligned eccentrically in relation to the control chamber.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 7, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Michael Mennicken, Ralf Wirth, Peter Boehland, Christoph Badock, Ralf Hentschel
  • Fuel injection valve
    Patent number: 6276335
    Abstract: A fuel injection valve for high-pressure injection of fuel from a central high-pressure line into combustion chambers of an internal combustion engine, which includes a switching valve with a valve seat and a valve ball; the valve ball in the opened state is lifted from the valve seat by means of a high-pressure jet which is supplied from a throttle bore by a pressure chamber operatively connected to a central high-pressure line. The transition from the throttle bore to the valve seat is embodied as a diffuser.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 21, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Walter Egler, Peter Boehland, Lorenz Betz, Ralf Hentschel