Patents by Inventor Friedrich Kurzay

Friedrich Kurzay 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).

  • Method of speed control of a friction clutch in a drive train and a drive engine and drive unit for execution of the method
    Patent number: 5845755
    Abstract: A method and device for speed control of a friction clutch in a drive unit having a drive engine and in which the friction clutch includes at least two clutch parts that can be pressed together for purposes of torque transfer. The first clutch part is coupled at least indirectly to the drive engine and the second clutch part can be coupled to the drive engine via the first clutch part. The contact force for the clutch parts required for torque transfer is automatically applied hydraulically at least on achieving the idling speed of the drive engine by rotational pressure of a rotating ring of hydraulic fluid.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: December 8, 1998
    Assignee: Voith Turbo GmbH
    Inventors: Georg Wahl, Friedrich Kurzay, Thomas Rogner, Dieter Proger