Hydraulic motor with orbiting drive member

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

1975-10-08

1976-09-21

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418 77, 418 81, 418 82, 418102, 418133, 418186, F01C 102, F01C 2100, F01C 1908, F01C 2104

Patent

active

039816419

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. Hydraulically 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 ring are respectively 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.

REFERENCES:
patent: 1079561 (1913-11-01), Kinney
patent: 2544988 (1951-03-01), Gardiner et al.
patent: 3516765 (1970-06-01), Boyadjieff et al.
patent: 3606599 (1971-09-01), Verge et al.
patent: 3703344 (1922-11-01), Reitter
patent: 3736078 (1973-05-01), Read et al.
patent: 3901630 (1975-08-01), Kilmer

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