Patents by Inventor Achim Degel

Achim Degel 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 injector
    Patent number: 8656591
    Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: February 25, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Guido Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
  • FUEL INJECTOR
    Publication number: 20110305823
    Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 15, 2011
    Inventors: Manfred ROESSLER, Achim DEGEL, Rolf KELLER, Markus GESK, Guido PILGRAM, Bernd EINWILLER, Norbert KEIM, Michael LINGNER
  • Fuel injection valve
    Patent number: 8020789
    Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: September 20, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Guido Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
  • Method for determining a fuel pressure related fault and operating an internal combustion engine based on the fault
    Patent number: 7360408
    Abstract: The invention relates to a method for operating a combustion engine (1) comprising a fuel-driven heat engine (5), which permits a differentiation of faults during the supply of fuel. To this end, the fuel is supplied under pressure to the heat engine (5) via a fuel supply (10). A pressure reduction speed in the fuel supply (10) is determined, and a fault is inferred based on a comparison of the pressure reduction speed with a predetermined threshold value.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: April 22, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Dingler, Stefan Lauter, Achim Degel
  • Method for operating an internal combustion engine
    Publication number: 20070079792
    Abstract: A method for operating an internal combustion engine having a fuel-driven combustion motor, making possible a differentiation of faults in the fuel delivery system. Fuel is delivered under pressure to the combustion motor via a fuel delivery system. A pressure decay rate in the fuel delivery system is determined, and a fault is inferred as a function of a comparison of the pressure decay rate with a predefined threshold value.
    Type: Application
    Filed: June 4, 2004
    Publication date: April 12, 2007
    Inventors: Thomas Dingler, Stefan Lauter, Achim Degel
  • Fuel injection valve
    Publication number: 20060151639
    Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.
    Type: Application
    Filed: July 2, 2003
    Publication date: July 13, 2006
    Inventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Giudo Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner