Patents by Inventor Stefan GRABITZKY

Stefan GRABITZKY 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 gearset
    Patent number: 11073194
    Abstract: A planetary gearset (6) has a sun gear (10) connected rotationally fixedly to an input shaft (8), a carrier (15) that carries planetary gears (11) and is connected rotationally fixedly to an output shaft (16), and a ring gear (14) fixedly connected to a housing (4) that encloses the planetary gearset (6). To reduce the noise emission from the planetary gearset with as little structural complexity as possible without reducing its efficiency due to pressure rings that are guided and slide against the planetary gears and the carrier, the sun gear (10), the planetary gears (11) and the ring gear (14) are provided with helical teeth and the input shaft (8) is at least indirectly supported on the housing (4), in both axial directions, by way of a single roller bearing (20).
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: July 27, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Christoph Bauer, Stefan Grabitzky, Manfred Klose, Walter Fischer, Andreas Bauer
  • PLANETARY GEARSET
    Publication number: 20200309234
    Abstract: A planetary gearset (6) has a sun gear (10) connected rotationally fixedly to an input shaft (8), a carrier (15) that carries planetary gears (11) and is connected rotationally fixedly to an output shaft (16), and a ring gear (14) fixedly connected to a housing (4) that encloses the planetary gearset (6). To reduce the noise emission from the planetary gearset with as little structural complexity as possible without reducing its efficiency due to pressure rings that are guided and slide against the planetary gears and the carrier, the sun gear (10), the planetary gears (11) and the ring gear (14) are provided with helical teeth and the input shaft (8) is at least indirectly supported on the housing (4), in both axial directions, by way of a single roller bearing (20).
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Christoph BAUER, Stefan GRABITZKY, Manfred KLOSE, Walter FISCHER, Andreas BAUER