Rotary pump or motor with drive rollers and free- floating...

Details Rotary pump or motor with drive rollers and free- floating... Rotary pump or motor with drive rollers and free- floating...

F - Mech Eng,Light,Heat,Weapons

04

C

103/74

F04C 2/10 (2006.01)

Patent

CA 1184431

ABSTRACT OF THE DISCLOSURE A pump or motor has a plurality of spaced drive rollers which rotate in an annular path in a chamber about an axis eccentric to the axis of the chamber. A plurality of free-floating rollers in the chamber are driven through the chamber by the drive rollers to form expanding and contracting areas in the chamber which control the flow of fluid into and out of the chamber. Another free-floating roller or member is centrally located between the drive rollers, and it is concentric with the path of the drive rollers. The centrally located roller is closely adjacent to the drive rollers and forms therewith a fluid seal that prevents any substantial fluid leakage therebetween. The centrally located roller may be loosely mounted on a shaft, or it may be confined centrally between the drive rollers solely by contact with the drive rollers and the opposed sidewalls of the chamber.

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