Patents by Inventor Torsten Tietze

Torsten Tietze 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).

  • Internal combustion engine which may be selectively operated by the two-stroke method or the four-stroke method and method for operating such an internal combustion engine
    Patent number: 9732682
    Abstract: Systems and methods are provided for operating an internal combustion engine in a two-stroke mode or a four-stroke mode to achieve greater fuel efficiency and minimize emissions. The system comprises a mode-adaptable valve; a valve rocker arm to actuate opening and closing of the mode adaptable valve; a cam follower of a first cam for carrying out a two-stroke mode; a cam follower of a second cam for carrying out a four-stroke mode; and a pin to mechanically couple the valve rocker arm to the cam follower of the first cam or the cam follower of the second cam. Coupling the valve rocker arm to the cam follower of the first cam enables a two-stroke mode and coupling the valve rocker arm to the cam follower of the second cam enables a four-stroke mode.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: August 15, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Torsten Tietze, Christian Winge Vigild, Andreas Kuske, Wilbert Hemink
  • INTERNAL COMBUSTION ENGINE WHICH MAY BE SELECTIVELY OPERATED BY THE TWO-STROKE METHOD OR THE FOUR-STROKE METHOD AND METHOD FOR OPERATING SUCH AN INTERNAL COMBUSTION ENGINE
    Publication number: 20140069372
    Abstract: Systems and methods are provided for operating an internal combustion engine in a two-stroke mode or a four-stroke mode to achieve greater fuel efficiency and minimize emissions. The system comprises a mode-adaptable valve; a valve rocker arm to actuate opening and closing of the mode adaptable valve; a cam follower of a first cam for carrying out a two-stroke mode; a cam follower of a second cam for carrying out a four-stroke mode; and a pin to mechanically couple the valve rocker arm to the cam follower of the first cam or the cam follower of the second cam. Coupling the valve rocker arm to the cam follower of the first cam enables a two-stroke mode and coupling the valve rocker arm to the cam follower of the second cam enables a four-stroke mode.
    Type: Application
    Filed: July 2, 2013
    Publication date: March 13, 2014
    Inventors: Torsten Tietze, Christian Winge Vigild, Andreas Kuske, Wilbert Hemink