Patents by Inventor Michael KUJAS

Michael KUJAS 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: 9046011
    Abstract: In a cam element for a valve drive train device of an internal combustion engine having at least one cam comprising at least two partial cams which are arranged next to one another and have a shared base circle phase in at least one angular camshaft range for valve lift switching by displacing their axial position with respect to a cam follower from one of the partial cams to another of the partial cams, the partial cams are angularly displaced in an axially overlapping arrangement. Also, between adjacent partial cams, a circular undercut is formed which has a center that is slightly offset from the rotational axis of the cam element so as to facilitate a switch over of valve actuation from one to another of the adjacent partial cams.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 2, 2015
    Assignee: Daimle AG
    Inventors: Michael Kujas, Thomas Stolk, Alexander Von Gaisberg-Helfenberg
  • Publication number: 20140150743
    Abstract: In a cam element for a valve drive train device of an internal combustion engine having at least one cam comprising at least two partial cams which are arranged next to one another and have a shared base circle phase in at least one angular camshaft range for valve lift switching by displacing their axial position with respect to a cam follower from one of the partial cams to another of the partial cams, the partial cams are angularly displaced in an axially overlapping arrangement. Also, between adjacent partial cams, a circular undercut is formed which has a center that is slightly offset from the rotational axis of the cam element so as to facilitate a switch over of valve actuation from one to another of the adjacent partial cams.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: DAIMLER AG
    Inventors: Michael KUJAS, Thomas STOLK, Alexander VON GAISBERG-HELFENBERG