Patents by Inventor Helmut Giessauf

Helmut Giessauf 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: 12241442
    Abstract: The invention relates to a fuel injection device (100) for a compression-ignition engine, comprising a first storage unit (20) which can be supplied with fuel by at least one high-pressure pump (16), the first storage unit (20) being arranged preferably inside the high-pressure pump (16), a first connecting line (26) from the first storage unit (20) to a second storage unit (30), and a second connecting line (40) from the second storage unit (30) to a fuel injector (50).
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: March 4, 2025
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Fuchs, Christoph Eduard Kammerer, Helmut Giessauf, Martin Bernhaupt, Walter Walkner
  • Publication number: 20240117784
    Abstract: The invention relates to a fuel injection device (100) for a compression-ignition engine, comprising a first storage unit (20) which can be supplied with fuel by at least one high-pressure pump (16), the first storage unit (20) being arranged preferably inside the high-pressure pump (16), a first connecting line (26) from the first storage unit (20) to a second storage unit (30), and a second connecting line (40) from the second storage unit (30) to a fuel injector (50).
    Type: Application
    Filed: December 27, 2021
    Publication date: April 11, 2024
    Inventors: Alexander Fuchs, Christoph Eduard Kammerer, Helmut Giessauf, Martin Bernhaupt, Walter Walkner
  • Publication number: 20150101688
    Abstract: A device for limiting the feed of fuel out of a high-pressure supply via a controllable injector into the combustion space of an internal combustion engine comprises a housing including a pressure supply-side housing inlet, an injector-side housing outlet, and at least one duct having a throttle, and a closing member longitudinally displaceable in a chamber between an initial position and an end position, spring-prestressed opposite to a flow direction, and configured to control a flow connection between the housing inlet and the housing outlet. The housing inlet is connected to the housing outlet via the at least one duct, and the at least one duct runs radially outside the chamber.
    Type: Application
    Filed: March 28, 2013
    Publication date: April 16, 2015
    Applicant: Robert Bosch GmbH
    Inventor: Helmut Giessauf
  • Publication number: 20090205614
    Abstract: In a device for the injection of fuel into the combustion chamber of an internal combustion engine, including an injector nozzle (5) and a nozzle needle (7) which is guided in a longitudinally displaceable manner within the injector nozzle (5) and, for the control of its opening and closing movements, is capable of being pressurized in the axial direction by the pressure prevailing in a control chamber (12) filled with fuel, wherein the control chamber (12) communicates with a supply line (14) and a discharge line (19), and a magnetic control valve (16) is arranged in at least one of the two lines, said magnetic control valve comprising a valve-closing member (25) coupled with an actuating member (21) and pressable against a valve seat (26), and said actuating member (21) being separated from the closing member (25) and the valve seat (26) by a bellows seal (28), the valve-closing member is configured as a valve ball and pressable against a conical valve seat (26).
    Type: Application
    Filed: July 29, 2005
    Publication date: August 20, 2009
    Applicant: Robert Bosch GmbH
    Inventors: Jaroslav Hlousek, Franz Guggenbichler, Helmut Giessauf, Joachim Lackner, Bernd Kogler