Hydraulic motor with orbiting drive member

Details Hydraulic motor with orbiting drive member Hydraulic motor with orbiting drive member

F - Mech Eng,Light,Heat,Weapons

04

C

103/94

F04C 2/00 (2006.01) F01C 1/32 (2006.01)

Patent

CA 1047315

TITLE HYDRAULIC MOTOR WITH ORBITING DRIVE MEMBER ABSTRACT A working member, i.e., an eccentric drive ring having internal teeth, orbits about a driven pinion having a lesser number of teeth to achieve gear reduction. Hydrau- lically expressed divider vanes on the orbiting drive ring engage the inner periphery of a surrounding fixed ring to define working chambers between the outer periphery of the drive ring and the inner periphery of the fixed ring. Port plates on opposite sides of the drive rinq are respec- tively exposed to high and low pressure fluid. Valving occurs when slots on opposite sides of the drive ring are exposed to ports on the port plate as the result of the orbital movement of the drive ring, so as to establish fluid flow paths to and from the working chambers.

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