Patents by Inventor Roland Ennsmann

Roland Ennsmann 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).

  • All-terrain vehicle with substransmission detachably mounted to the engine
    Publication number: 20060019790
    Abstract: An all-terrain vehicle (ATV) has a subtransmission detachably fastened to an engine casing. The engine crankshaft includes a drive pulley connected via a belt to a driven pulley in the subtransmission, thus providing a continuously variable transmission (CVT) between the engine crankshaft and the subtransmission. The subtransmission includes a 2WD-4WD selector mechanism to select two-wheel-drive or four-wheel-drive and also includes a transmission selector mechanism to put the vehicle in park, neutral, reverse, high-speed drive or low-speed drive. By disposing these selector mechanisms in the subtransmission, mass centralization is improved relative to prior-art drivetrains wherein the 2WD-4WD selector mechanism connects to the front differential. When operating in 2WD mode, the drivetrain does not waste energy rotating the front drive shaft, as in the prior art.
    Type: Application
    Filed: July 18, 2005
    Publication date: January 26, 2006
    Applicants: Bombardier Recreational Products Inc., BRP-Rotax GmbH & Co. KG
    Inventors: Vincent Morin, Ghislain Caron, Ronald Schapf, Roland Ennsmann
  • Four stroke engine having blow-by ventilation system and lubrication system
    Patent number: 6591819
    Abstract: A four stroke internal combustion engine is disclosed having a lubrication system for circulating lubricant within the engine. The engine further include a system for separating lubricant from blow-by gas within the crank case.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: July 15, 2003
    Assignee: Bombardier-Rotax GmbH
    Inventors: Rudolf Tscherne, Alois Wolfsgruber, Roland Ennsmann
  • Four stroke engine having blow-by ventilation system and lubrication system
    Publication number: 20020000224
    Abstract: A four stroke internal combustion engine is disclosed having a lubrication system for circulating lubricant within the engine. The engine further include a system for separating lubricant from blow-by gas within the crank case.
    Type: Application
    Filed: February 28, 2001
    Publication date: January 3, 2002
    Inventors: Rudolf Tscherne, Alois Wolfsgruber, Roland Ennsmann