Hydraulic motor with wobble-stick and brake assembly

Details Hydraulic motor with wobble-stick and brake assembly Hydraulic motor with wobble-stick and brake assembly

1989-10-03

1991-01-01

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418102, 418104, 418181, F03C 208

Patent

active

049814230

ABSTRACT:
A hydraulic device includes a hydraulic motor having a wobble shaft driven by a rotor of a gerotor gear set. An outer end of the wobble shaft is received in a hollow inner end portion of an output shaft. A brake assembly holds the motor output shaft against rotation when the hydraulic motor is being operated. A seal blocks fluid flow between the brake assembly and the hydraulic motor. The seal is disposed in sealing engagement with the hollow end portion of the output shaft at a location between the motor and the brake assembly.

REFERENCES:
patent: 3536230 (1970-10-01), Williams
patent: 3616882 (1971-11-01), White
patent: 3771905 (1973-11-01), Ohrberg et al.
patent: 3960470 (1976-06-01), Kinder
patent: 4739865 (1988-04-01), Yater et al.
Torqmotor MG, MF, MB, ME Series Service Procedure.

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