Patents by Inventor Stephan Leiber

Stephan Leiber 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).

  • Lubrication oil supply for crankshaft
    Patent number: 7152569
    Abstract: An engine crankshaft includes a split crankshaft journal that includes offset connecting rod journals for two connecting rods. Oil supply systems disposed on opposite axial sides of the crankshaft journal each lubricate a corresponding one of the connecting rod journals. The oil supply systems are either axial or peripheral oil supply systems that do not require oil to be supplied to the crankshaft through the main crankcase bearings. Consequently, the oil supply systems sufficiently lubricate each connecting rod journal without requiring weakening holes or grooves in the main crankcase bearings.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: December 26, 2006
    Assignee: BRP-Rotax GmbH & Co. KG
    Inventors: Stephan Leiber, Robert Kindl
  • Lubrication oil supply for crankshaft
    Publication number: 20050016491
    Abstract: An engine crankshaft includes a split crankshaft journal that includes offset connecting rod journals for two connecting rods. Oil supply systems disposed on opposite axial sides of the crankshaft journal each lubricate a corresponding one of the connecting rod journals. The oil supply systems are either axial or peripheral oil supply systems that do not require oil to be supplied to the crankshaft through the main crankcase bearings. Consequently, the oil supply systems sufficiently lubricate each connecting rod journal without requiring weakening holes or grooves in the main crankcase bearings.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 27, 2005
    Inventors: Stephan Leiber, Robert Kindl