Patent ID: 6241499
Filing Date: 2001-06-05
Classification: F01C,F04C

Abstract:
A rotary piston engine to be used as a pump or a engine, comprising:a housing fitted with end walls;a rotary body rotatably mounted in said housing; andat least one sealing element separating a volume formed between the housing and the rotary body,said housing having at least one pair of inlet and outlet openings and the sealing element having two leg portions, the ends of which abut against the rotary body, and a web portion intermediate said leg portions,said sealing element additionally being pivotable about a pivot axis on said web portion, wherein said sealing element is movably associated with the housing in such a manner that the sealing element is displaceable radially, thus allowing the sum of the distances from the axis of rotation of the rotary body to the points of abutment on said body to vary, said sealing element is also displaceable in and oppositely to the direction of rotation, and the intermediate web portion of the sealing element is formed with surfaces that are inclined in the direction oppositely to the direction of rotation, which inclined surfaces are intended to engage portions of the housing in order to transform a force in the direction of rotation to a force in the radial direction.