Patents by Inventor Rudolf Zentsch

Rudolf Zentsch 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: 20240026961
    Abstract: A continuously variable power-branched transmission has a shaft (4) that can be coupled to a drive motor, where the drive motor is connected to at least one variator (1). In order to obtain forward and reverse driving operation, the drive motor is coupled by way of spur gear pairs that can be engaged by means of driving direction clutches (KV, KR) to a drive output (13). The driving direction clutches (KV, KR) are arranged a distance apart.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Gerhard Milbradt, Christian Kreutle, Rainer Hildebrand, Taras Bidenko, Rudolf Zentsch, Jan Baudis, Stefan Dirnberger, Johannes Ziegler, Wiebke Breil, Giuseppe Muro
  • Patent number: 6817268
    Abstract: In order to damp the vibrations in a hydraulic branch of a power distribution transmission, the hydraulic pump (1) and the hydraulic motor (3) which are interconnected are non-rotatably but elastically maintained in the transmission housing in the area of their connecting point by damping elements (5). The input shaft (11) of the hydraulic pump (1) and the output shaft (18) of the hydraulic motor (3) are connected with shafts (12, 17) which on their engagements have crowned teeth or spiral gearings and are floatingly mounted. It is hereby obtained that the hydraulic branch is easy to mount, can freely move and the vibrations it produces are not transmitted to the transmission housing (7) or to the toothed wheels (13, 16) of the mechanical distribution branch.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: November 16, 2004
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Hildebrand, Rudolf Zentsch