Patents by Inventor Michael GRÄBER

Michael GRÄBER 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).

  • Planetary gearbox and gas turbine engine having planetary gearbox
    Patent number: 12049848
    Abstract: The invention relates to a planetary gearbox in a gas turbine engine wherein a plurality of planetary gears are each mounted on a planetary gear bearing journal by a slide bearing, characterized in that a bushing is arranged in an inner bore of at least one planetary gear, which bushing spatially separates the sliding surface of the slide bearing from the inner bore of the planetary gear and the bushing is designed as a replacement part, in particular as a sacrificial part. The invention also relates to a gas turbine engine.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: July 30, 2024
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Michael Gräber, Greg Blake
  • Gear wheel of a transmission
    Patent number: 12007010
    Abstract: A gear wheel of a transmission, in particular of a transmission of a gas turbine engine is described, which is designed with a groove which extends in the circumferential direction on the outer periphery of a base body of the gear wheel and in which fibers running at least in the circumferential direction are arranged. The fibers surround the base body in the circumferential direction, wherein the fibers at least partially support the operating loads on the gear wheel only on a breakage of the base body.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: June 11, 2024
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Michael Gräber
  • PLANETARY GEARBOX AND GAS TURBINE ENGINE HAVING PLANETARY GEARBOX
    Publication number: 20230272750
    Abstract: The invention relates to a planetary gearbox in a gas turbine engine wherein a plurality of planetary gears are each mounted on a planetary gear bearing journal by a slide bearing, characterized in that a bushing is arranged in an inner bore of at least one planetary gear, which bushing spatially separates the sliding surface of the slide bearing from the inner bore of the planetary gear and the bushing is designed as a replacement part, in particular as a sacrificial part. The invention also relates to a gas turbine engine.
    Type: Application
    Filed: October 7, 2020
    Publication date: August 31, 2023
    Inventors: Michael GRÄBER, Greg BLAKE
  • GEAR WHEEL OF A TRANSMISSION
    Publication number: 20230053677
    Abstract: A gear wheel of a transmission, in particular of a transmission of a gas turbine engine is described, which is designed with a groove which extends in the circumferential direction on the outer periphery of a base body of the gear wheel and in which fibers running at least in the circumferential direction are arranged. The fibers surround the base body in the circumferential direction, wherein the fibers at least partially support the operating loads on the gear wheel only on a breakage of the base body.
    Type: Application
    Filed: July 7, 2022
    Publication date: February 23, 2023
    Inventor: Michael GRÄBER