Patents Assigned to Brandenburgische Forschungs-und Entwicklungsgesellschaft Cottbus mbH
  • Rotary piston engine having an oil system for lubrication and cooling
    Patent number: 6503070
    Abstract: A trochoidal design rotary piston engine design has a rotary piston housing with a double curve inner contour and triangular type rotary pistons. Sliding bearings distribute lubricating oil from a pressure cycle into a high pressure circuit and a low pressure bypass circuit branches to the side parts and axial cooling channels of the rotary piston housing to supply the cooling oil.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: January 7, 2003
    Assignee: Brandenburgische Forschungs-und Entwicklungsgesellschaft Cottbus mbH
    Inventor: Dankwart Eiermann
  • Trochoidal design rotary piston engine and method of making same
    Patent number: 6481989
    Abstract: In a trochoidal design rotary piston engine, side disks are intended to be assembled from one cast side section and a cover disk, where the side section and the cover disks are used in a sealing function. The side section includes cast in reinforcing ribs on a side thereof facing away from the engine combustion chamber.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: November 19, 2002
    Assignee: Brandenburgische Forschungs-und Entwicklungsgesellschaft Cottbus mbH
    Inventor: Dankwart Eiermann
  • Rotary piston engine having a cogwheel pump and an oil metering pump
    Patent number: 6474965
    Abstract: A trochoidal design rotary piston engine design has an external axis cogwheel oil pump which has a smaller diameter drive cogwheel which drives a larger diameter size cogwheel where the larger diameter size cogwheel is coupled to an oil-metering pump. The larger cogwheel is supported in a side disk disposed at one side of an engine housing forming a combustion engine.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: November 5, 2002
    Assignee: Brandenburgische Forschungs-und Entwicklungsgesellschaft Cottbus mbH
    Inventor: Dankwart Eiermann