Patents by Inventor Rainer Messer

Rainer Messer 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).

  • Camshaft having a sliding piece which has different cam profiles
    Patent number: 8701609
    Abstract: A camshaft assembly has a rotationally drivable basic camshaft and at least one sliding piece which is mounted in the basic camshaft and can be displaced in the longitudinal direction of the latter, the sliding piece having at least one cam pack with at least two cams with different cam profiles, and having a switching device which has a switch guide plate for displacing the at least one sliding piece into different switching positions of the cams. It is provided in a camshaft of this type that the switching device has a switching shaft which can be rotated about the rotational axis of the basic camshaft with a switch guide plate which has a slotted-guide track, and a slotted-guide pin which is connected to the sliding piece and engages into the slotted-guide track.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: April 22, 2014
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Michael Wahl, Siegfried Luhmann, Rainer Messer
  • CAMSHAFT HAVING A SLIDING PIECE WHICH HAS DIFFERENT CAM PROFILES
    Publication number: 20120260870
    Abstract: A camshaft assembly has a rotationally drivable basic camshaft and at least one sliding piece which is mounted in the basic camshaft and can be displaced in the longitudinal direction of the latter, the sliding piece having at least one cam pack with at least two cams with different cam profiles, and having a switching device which has a switch guide plate for displacing the at least one sliding piece into different switching positions of the cams. It is provided in a camshaft of this type that the switching device has a switching shaft which can be rotated about the rotational axis of the basic camshaft with a switch guide plate which has a slotted-guide track, and a slotted-guide pin which is connected to the sliding piece and engages into the slotted-guide track.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 18, 2012
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Michael Wahl, Siegfried Luhmann, Rainer Messer