Patents by Inventor Siegfried Rahe

Siegfried Rahe 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).

  • Articulated unit and method for lubricating an articulated unit
    Patent number: 8678656
    Abstract: An articulated unit for a motor vehicle with a housing (1) and a link pin (2) supported in the housing (1), and a bearing shell (4) disposed between the housing (1) and a bearing section (3) of the link pin (2), with the bearing shell (4) supported with its outer surface (5) at least in sections in the housing (1) and having on its inner surface (6) facing the bearing section (3) of the link pin (2) recesses (7) for a lubricant. The bearing shell (4) has at least one opening (8) which extends through the bearing shell (4) from the inner surface (6) to the outer surface (5) and forms a flow channel. A method for lubricating an articulated unit is presented, wherein the bearing shell (4) having elastic compliance produces during the relative movement of the link pin (2) in the housing (1) a pumping action, which enables distribution of the lubricant via the lubricant channel system.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 25, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Richter, Arnold Middelkampf, Siegfried Rahe
  • ARTICULATED UNIT AND METHOD FOR LUBRICATING AN ARTICULATED UNIT
    Publication number: 20090152834
    Abstract: An articulated unit for a motor vehicle with a housing (1) and a link pin (2) supported in the housing (1), and a bearing shell (4) disposed between the housing (1) and a bearing section (3) of the link pin (2), with the bearing shell (4) supported with its outer surface (5) at least in sections in the housing (1) and having on its inner surface (6) facing the bearing section (3) of the link pin (2) recesses (7) for a lubricant. The bearing shell (4) has at least one opening (8) which extends through the bearing shell (4) from the inner surface (6) to the outer surface (5) and forms a flow channel. A method for lubricating an articulated unit is presented, wherein the bearing shell (4) having elastic compliance produces during the relative movement of the link pin (2) in the housing (1) a pumping action, which enables distribution of the lubricant via the lubricant channel system.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 18, 2009
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas Richter, Arnold Middelkampf, Siegfried Rahe