Patents by Inventor Steffen Matthias Kappler

Steffen Matthias Kappler 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).

  • Patent number: 9097144
    Abstract: A valve drive arrangement for actuating gas exchange valves of an internal combustion engine having a camshaft, on which first and second cam carriers are arranged on first and second contact regions in a non-positive and/or positively locking manner, the first cam carrier having at least one cam for actuating a gas exchange valve and the second cam carrier having at least one cam for actuating an ancillary unit, the first contact region being configured with regard to the geometric dimensions differently in relation to the second contact region in such a way that the second cam carrier can be mounted, without being impeded by the contact regions for the first cam carrier.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: August 4, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Steffen Matthias Kappler
  • Publication number: 20140102391
    Abstract: A sliding cam arrangement for the variable actuation of gas exchange valves of an internal combustion engine, having a camshaft which has toothing regions with an external toothing, wherein the toothing regions mesh in each case with an internal toothing of a cam carrier, wherein the ratio of base circle radius R2 of the cam carrier to tip circle radius R1 of the toothing of the camshaft satisfies the following criteria: R2/R1<1.55.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 17, 2014
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Steffen Matthias Kappler, Frank Ickinger
  • Publication number: 20140102393
    Abstract: A valve drive arrangement for actuating gas exchange valves of an internal combustion engine having a camshaft, on which first and second cam carriers are arranged on first and second contact regions in a non-positive and/or positively locking manner, the first cam carrier having at least one cam for actuating a gas exchange valve and the second cam carrier having at least one cam for actuating an ancillary unit, the first contact region being configured with regard to the geometric dimensions differently in relation to the second contact region in such a way that the second cam carrier can be mounted, without being impeded by the contact regions for the first cam carrier.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 17, 2014
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Steffen Matthias Kappler