Patents by Inventor Ralf SPERLICH

Ralf SPERLICH 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).

  • Publication number: 20230014947
    Abstract: An arrangement including a transmission and a generator is disclosed. The generator includes a generator rotor being non-rotatably connected to an output shaft of the transmission or configured to be connectable to the output shaft of the transmission. An assembly bearing that supports the generator rotor in the output shaft is also disclosed.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 19, 2023
    Inventors: Wim De Laet, Andy Maes, Ralf Sperlich
  • Publication number: 20220341398
    Abstract: An arrangement includes a transmission, a pitch tube, and a fixation device configured to affix the pitch tube in the transmission. The fixation device is electrically insulated from the pitch tube. The pitch tube can be axially movable relative to the fixation device. The pitch tube can be fixed in a shaft or a rotatably-mounted planet carrier of the transmission by the fixation device.
    Type: Application
    Filed: August 17, 2020
    Publication date: October 27, 2022
    Inventors: Dirk STRASSER, Dietmar WEIST, Deyan STOYANOV, Ralf SPERLICH
  • Patent number: 11293542
    Abstract: A transmission housing includes a first housing half forming a first sealing surface and a first lubricant line, and a second housing half forming a second sealing surface and a second lubricant line. The first sealing surface and the second sealing surface seal an internal space in relation to an environment. An opening of the first lubricant line and an opening of the second lubricant line are fluidically connected to one another. The first sealing surface has a first groove and the second sealing surface has a second groove. The first groove and the second groove together form a third lubricant line. The third lubricant line runs between the opening of the first lubricant line into the first sealing surface and the environment of the transmission housing and between the opening of the second lubricant line into the second sealing surface and the environment of the transmission housing.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 5, 2022
    Assignees: ZF FRIEDRICHSHAFEN AG, ZF WIND POWER ANTWERPEN N.V.
    Inventors: Ralf Sperlich, Dirk Strasser, Joerg Muench
  • Publication number: 20210148452
    Abstract: A transmission housing includes a first housing half forming a first sealing surface and a first lubricant line, and a second housing half forming a second sealing surface and a second lubricant line. The first sealing surface and the second sealing surface seal an internal space in relation to an environment. An opening of the first lubricant line and an opening of the second lubricant line are fluidically connected to one another. The first sealing surface has a first groove and the second sealing surface has a second groove. The first groove and the second groove together form a third lubricant line. The third lubricant line runs between the opening of the first lubricant line into the first sealing surface and the environment of the transmission housing and between the opening of the second lubricant line into the second sealing surface and the environment of the transmission housing.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 20, 2021
    Inventors: Ralf SPERLICH, Dirk STRASSER, Joerg MUENCH
  • Patent number: 10969002
    Abstract: An assembly includes a first planetary stage, a second planetary stage, and at least one retainer plate. The first planetary stage has a planet carrier and the second planetary stage has a ring gear. The planet carrier and the ring gear are configured to be rotated about a common axis of rotation. The retainer plate is attached to the ring gear and engages in a groove in the planet carrier. The groove and the axis of rotation are at least partially skewed to each other. The retainer plate is arranged at least partially on a first side of a first plane and on a first side of a second plane. The first plane and the second plane intersect along the axis of rotation. All planet bolts fixed in the planet carrier each lie on a second side of the first plane and/or the second plane.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 6, 2021
    Assignees: ZF Friedrichshafen AG, ZF Wind Power Antwerpen N.V.
    Inventors: Ralf Sperlich, Joerg Muench, Dirk Strasser
  • Patent number: 10746285
    Abstract: A planetary carrier for a gear stage of a planetary gearset includes at least one planetary pin that is disposed in a rotationally fixed manner in the planetary carrier, and a pair of tapered roller bearings that are disposed on the planetary pin supporting a planet gear. The planetary pin is fastened by a pin screw connection, which comprises a pin screw and a nut, to the planetary carrier. The tapered roller bearings are clamped against each other between the planetary carrier and the planet pin and are axially pretensioned by the pin screw connection.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: August 18, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Joerg Muench, Dirk Strasser, Ralf Sperlich
  • Publication number: 20200056679
    Abstract: An assembly includes a first planetary stage, a second planetary stage, and at least one retainer plate. The first planetary stage has a planet carrier and the second planetary stage has a ring gear. The planet carrier and the ring gear are configured to be rotated about a common axis of rotation. The retainer plate is attached to the ring gear and engages in a groove in the planet carrier. The groove and the axis of rotation are at least partially skewed to each other. The retainer plate is arranged at least partially on a first side of a first plane and on a first side of a second plane. The first plane and the second plane intersect along the axis of rotation. All planet bolts fixed in the planet carrier each lie on a second side of the first plane and/or the second plane.
    Type: Application
    Filed: November 3, 2017
    Publication date: February 20, 2020
    Inventors: Ralf Sperlich, Joerg Muench, Dirk Strasser
  • Publication number: 20190032771
    Abstract: A planetary carrier for a gear stage of a planetary gearset includes at least one planetary pin that is disposed in a rotationally fixed manner in the planetary carrier, and a pair of tapered roller bearings that are disposed on the planetary pin supporting a planet gear. The planetary pin is fastened by means of a pin screw connection, which comprises a pin screw and a nut, to the planetary carrier. The tapered roller bearings are clamped against each other between the planetary carrier and the planet pin and are axially pretensioned by means of the pin screw connection.
    Type: Application
    Filed: November 22, 2016
    Publication date: January 31, 2019
    Inventors: Joerg MUENCH, Dirk STRASSER, Ralf SPERLICH