Patents by Inventor Thomas Rothkegel

Thomas Rothkegel 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
    Patent number: 10018100
    Abstract: An internal combustion engine has a cooling jacket defined in the cylinder block for cooling at least an exhaust side of the cylinder. The cooling jacket at least partially surrounds the cylinder and includes a first cooling passage positioned between the exhaust passage and the first auxiliary exhaust passage, and a second cooling passage positioned between the exhaust passage and the second auxiliary exhaust passage. The cooling jacket on at least the exhaust side of the cylinder comprises an upper portion and a lower portion which are in fluid communication with each other via at least one of the first cooling passage and the second cooling passage.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: July 10, 2018
    Assignee: BRP-ROTAX GMBH & CO. KG
    Inventors: Petra Wiesinger, Thomas Rothkegel, Michael Gumpesberger
  • INTERNAL COMBUSTION ENGINE
    Publication number: 20180023452
    Abstract: An internal combustion engine has a cooling jacket defined in the cylinder block for cooling at least an exhaust side of the cylinder. The cooling jacket at least partially surrounds the cylinder and includes a first cooling passage positioned between the exhaust passage and the first auxiliary exhaust passage, and a second cooling passage positioned between the exhaust passage and the second auxiliary exhaust passage. The cooling jacket on at least the exhaust side of the cylinder comprises an upper portion and a lower portion which are in fluid communication with each other via at least one of the first cooling passage and the second cooling passage.
    Type: Application
    Filed: July 25, 2016
    Publication date: January 25, 2018
    Inventors: Petra WIESINGER, Thomas ROTHKEGEL, Michael GUMPESBERGER
  • Piston for an internal combustion engine
    Patent number: 8910609
    Abstract: A piston for an internal combustion engine has a crown, a skirt extending from the crown, a pair of pin bosses, and a plurality of struts connecting the pin bosses to inner sides of the crown and skirt. An internal combustion engine having the piston is also disclosed.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 16, 2014
    Assignee: BRP-Powertrain GmbH & Co. KG
    Inventor: Thomas Rothkegel