Patents by Inventor Stefan Hoelzel

Stefan Hoelzel 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 adjuster
    Patent number: 10267186
    Abstract: A camshaft adjuster (1) including a stator (2) and a rotor (4), a spring (6) tenses the rotor (4) rotationally counter to the stator (2). According to the invention, the spring is a coil spring (6), the stator (2) includes a first recess (8) of a first free end (10) of the coil spring (6) and the rotor (4) includes a second recess (12) for a second free end (14) of the coil spring (6).
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: April 23, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Stefan Sebald, Stefan Hoelzel, Boris Puetz, Ali Bayrakdar
  • CAMSHAFT ADJUSTER
    Publication number: 20170037748
    Abstract: A camshaft adjuster (1) including a stator (2) and a rotor (4), a spring (6) tenses the rotor (4) rotationally counter to the stator (2). According to the invention, the spring is a helical spring (6), the stator (2) includes a first recess (8) of a first free end (10) of the helical spring (6) and the rotor (4) includes a second recess (12) for a second free end (14) of the helical spring (6).
    Type: Application
    Filed: April 2, 2015
    Publication date: February 9, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Stefan Sebald, Stefan Hoelzel, Boris Puetz, Ali Bayrakdar