Patents by Inventor Martin Buhner

Martin Buhner 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).

  • Patent number: 6182912
    Abstract: A fuel injection valve, in particular a high-pressure injection valve for the direct injection of fuel into the combustion chamber of a compressed mixture, externally ignited internal combustion engine, has in a guide and seat area provided at the downstream end of the valve which area is formed by three disk-shaped elements. A swirl element is nested between a guide element and a valve seat element. The guide element, which can move radially in the assembled valve and which has an inner guide opening, serves to guide an axially movable valve needle which extends through it, while a valve closing section of the valve needle acts in concert with a valve seat surface of the valve seat element. The guide element is spring-loaded through a compression spring which acts upon it.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: February 6, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Martin Müller, Stefan Herold, Jochen Riefenstahl, Reinhold Brückner, Dirk Fischbach, Andreas Eichendorf, Martin Bühner, Rainer Norgauer, Jürgen Virnekäs, Peter Schramm, Hans Weidler, Christian Preussner, Thomas Keil, Oliver Kirsten, Ottmar Martin, Wolfgang Leuschner
  • Patent number: 6145761
    Abstract: A fuel injection valve, in particular, a high-pressure injection valve, for injecting fuel directly into a combustion chamber of a compressed-mixture internal combustion engine with externally supplied ignition. The fuel injection valve includes a guide and seating area formed by three disc-shaped elements provided at the downstream end of the valve. A swirl element is embedded between a guide element and a valve seat element. The guide element is used to guide a valve needle which passes through it and can move in the axial direction, while a valve closing segment of the valve needle interacts with a valve seat surface of the valve seat element. The swirl element has an inner opening area with multiple swirl channels which are not joined to the outer circumference of the swirl element. The entire opening area extends completely across the axial thickness of the swirl element.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: November 14, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Martin Muller, Stefan Herold, Jochen Riefenstahl, Reinhold Bruckner, Dirk Fischbach, Andreas Eichendorf, Martin Buhner, Rainer Norgauer, Jurgen Virnekas, Peter Schramm, Hans Weidler, Christian Preussner, Thomas Keil, Oliver Kirsten, Ottmar Martin, Wolfgang Leuschner