Patents by Inventor Norbert Hirtz

Norbert Hirtz 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).

  • Hydraulic device comprising a segment having at least one through-hole configured to promote the rotation of said segment
    Patent number: 10837553
    Abstract: A hydraulic device includes a cylinder, a piston that is able to move in the cylinder, and a segment which is interposed between the cylinder and the piston and which includes at least one leakage duct that is configured to generate a hydraulic film, between the segment and the piston, reducing friction and to orient a hydraulic flow leaving the leakage duct which causes the segment to rotate about the piston.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: November 17, 2020
    Assignee: AIRBUS SAS
    Inventor: Norbert Hirtz
  • Hydraulic Device Comprising A Segment Having At Least One Through-Hole Configured To Promote The Rotation Of Said Segment
    Publication number: 20200173554
    Abstract: A hydraulic device includes a cylinder, a piston that is able to move in the cylinder, and a segment which is interposed between the cylinder and the piston and which includes at least one leakage duct that is configured to generate a hydraulic film, between the segment and the piston, reducing friction and to orient a hydraulic flow leaving the leakage duct which causes the segment to rotate about the piston.
    Type: Application
    Filed: November 19, 2019
    Publication date: June 4, 2020
    Applicant: AIRBUS SAS
    Inventor: Norbert Hirtz
  • System and method for spinning up a rotary element of a mechanical device, particularly a turbomachine
    Patent number: 10066500
    Abstract: A system comprising a discharge valve that allows some of the fluid generated by a fluid generating source and intended for a drive torque generating member for a rotary element of a mechanical device to be removed so as to limit the corresponding rotational speed, this being done for a length of time that allows a thermal gradient to be reduced sufficiently that a phenomenon of deformation of said rotary element can be prevented.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: September 4, 2018
    Assignees: AIRBUS OPERATIONS SAS, AIRBUS SAS
    Inventors: Alexis Manneville, Norbert Hirtz, Valentin Theard
  • SYSTEM AND METHOD FOR SPINNING UP A ROTARY ELEMENT OF A MECHANICAL DEVICE, PARTICULARLY A TURBOMACHINE
    Publication number: 20140373518
    Abstract: A system comprising a discharge valve that allows some of the fluid generated by a fluid generating source and intended for a drive torque generating member for a rotary element of a mechanical device to be removed so as to limit the corresponding rotational speed, this being done for a length of time that allows a thermal gradient to be reduced sufficiently that a phenomenon of deformation of said rotary element can be prevented.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 25, 2014
    Inventors: Alexis Manneville, Norbert Hirtz, Valentin Theard