Patents by Inventor Frank-Holger Schoefer

Frank-Holger Schoefer 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).

  • Injector, injection-molding tool, and method for manufacturing an injector
    Patent number: 11618190
    Abstract: An injector for introducing a fluid includes a main body designed as an insert and including a first tool contact surface for an injection-molding tool and a second tool contact surface for the injection-molding tool; and an injection-molded housing that completely encloses the main body on at least one portion of the main body, the injection-molded housing including at least one first opening that extends linearly towards the main body.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: April 4, 2023
    Assignee: ROBERT BOSCH GMBH
    Inventors: Frank-Holger Schoefer, Ralf Kromer, Andreas Glaser, Lars Wittko, Marcio Dos Santos Trombin, Onur Sahiner
  • INJECTOR, INJECTION-MOLDING TOOL, AND METHOD FOR MANUFACTURING AN INJECTOR
    Publication number: 20190315029
    Abstract: An injector for introducing a fluid includes a main body designed as an insert and including a first tool contact surface for an injection-molding tool and a second tool contact surface for the injection-molding tool; and an injection-molded housing that completely encloses the main body on at least one portion of the main body, the injection-molded housing including at least one first opening that extends linearly towards the main body.
    Type: Application
    Filed: October 19, 2017
    Publication date: October 17, 2019
    Inventors: Frank-Holger Schoefer, Ralf Kromer, Andreas Glaser, Lars Wittko, Marcio Dos Santos Trombin, Onur Sahiner
  • Decoupling element for a fuel injection device
    Patent number: 9057349
    Abstract: A decoupling element for a fuel injection device provides a low-noise construction. The fuel injection device has at least one fuel injection valve and a receiving bore in a cylinder head for the fuel injection valve as well as the decoupling element between a valve housing of the fuel injection valve and a wall of the receiving bore. The spring rigidity of the decoupling element is so low and the decoupling element is placed between the valve housing of the fuel injection valve and the wall of the receiving bore in such a way that the decoupling resonance is located in the frequency range below 2.5 kHz. The fuel injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing spark-ignited internal combustion engine.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: June 16, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Michael Fischer, Andrej Elsinger, Frank-Holger Schoefer, Corren Heimgaertner, Michael Kleindl
  • DECOUPLING ELEMENT FOR A FUEL INJECTION DEVICE
    Publication number: 20120031375
    Abstract: A decoupling element for a fuel injection device provides a low-noise construction. The fuel injection device has at least one fuel injection valve and a receiving bore in a cylinder head for the fuel injection valve as well as the decoupling element between a valve housing of the fuel injection valve and a wall of the receiving bore. The spring rigidity of the decoupling element is so low and the decoupling element is placed between the valve housing of the fuel injection valve and the wall of the receiving bore in such a way that the decoupling resonance is located in the frequency range below 2.5 kHz. The fuel injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing spark-ignited internal combustion engine.
    Type: Application
    Filed: November 26, 2009
    Publication date: February 9, 2012
    Inventors: Michael Fischer, Andrej Elsinger, Frank-Holger Schoefer, Corren Heimgaertner, Michael Kleindl