Patents by Inventor Achim Eisemann

Achim Eisemann 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).

  • Distributor structure for a fuel cell or electrolyser
    Patent number: 12080921
    Abstract: The invention relates to a distributor structure (12, 20), particularly a bipolar plate for a stack structure (10) of a fuel cell or of an electrolyser. The distributor structure (12, 20) comprises a channel structure (48) that interacts with at least one polymer membrane (16). The distributor structure (12, 20) is designed as a plastic part (40) that has electrically conductive properties.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: September 3, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Seitz, Achim Eisemann, Alexander Eifert, Andre Neidhardt, Arne Stephen Fischer, Christoph Haluschka, Felix Wald, Friedrich Kneule, Jan Hendrik Ohs, Laszlo Hagymasi, Laura Bauer, Rolf Lernbecher, Stefan Grosse, Stefan Schoenbauer
  • DISTRIBUTOR STRUCTURE FOR A FUEL CELL OR ELECTROLYSER
    Publication number: 20220029175
    Abstract: The invention relates to a distributor structure (12, 20), particularly a bipolar plate for a stack structure (10) of a fuel cell or of an electrolyser. The distributor structure (12, 20) comprises a channel structure (48) that interacts with at least one polymer membrane (16). The distributor structure (12, 20) is designed as a plastic part (40) that has electrically conductive properties.
    Type: Application
    Filed: November 28, 2019
    Publication date: January 27, 2022
    Inventors: Rainer Seitz, Achim Eisemann, Alexander Eifert, Andre Neidhardt, Arne Stephen Fischer, Christoph Haluschka, Felix Wald, Friedrich Kneule, Jan Hendrik Ohs, Laszlo Hagymasi, Laura Bauer, Rolf Lernbecher, Stefan Grosse, Stefan Schoenbauer
  • Method for making defined conical holes using a laser beam
    Patent number: 6518543
    Abstract: A method for producing bore holes, including conical bore holes, having a definite hole geometry in the longitudinal direction of the bore hole by adjusting the beam geometry and/or the beam parameters of a laser beam.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: February 11, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Benz, Thomas Wawra, Rainer Schneider, Achim Eisemann
  • Fuel injection device for internal combustion engines
    Patent number: 6283390
    Abstract: A fuel injection device for internal combustion engines, having a fuel injection pump, which can be inserted into a housing of the engine and is axially clamped together with a fuel injection valve by means of a clamping sleeve. The valve, with an end remote from the pump, protrudes into a combustion chamber of the engine. A fuel supply line to the fuel injection pump feeds into an annular chamber encompassing the clamping sleeve and, via through openings in the clamping sleeve and inlet conduits in the pump housing, the valve can be connected to a pump working chamber of fuel injection pump. According to the invention, the fuel filter in the inlet to the pump working chamber is constituted by the clamping sleeve, which has a multitude of filter openings for this purpose in its circumference wall, in the vicinity of the annular chamber.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: September 4, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Peter Brendle, Rainer Schneider, Achim Eisemann, Maximilian Kronberger, Herbert Strahberger, Ernst Feichtinger