Hydraulic gerotor motor and parking brake for use therein

Details Hydraulic gerotor motor and parking brake for use therein Hydraulic gerotor motor and parking brake for use therein

1982-11-22

1985-01-15

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 3N, 744115, 418 61B, F16H 5710, B60K 4128

Patent

active

044934041

ABSTRACT:
A hydraulic motor including an integral parking brake section (15). The motor is of the type including a gerotor displacement mechanism (17) including an orbiting and rotating star (27) and a main drive shaft (41) which engages in orbital movement. The parking brake includes a lock shaft (77) having a cutaway portion (125) which permits normal orbital movement of the main drive shaft (41) in the unlocked condition. When it is desired to lock the motor and prevent rotation of the output shaft (31), the lock shaft (77) is rotated by a control shaft (101) to a locked condition in which a lock surface (123) is disposed within the orbit circle (C) of the drive shaft (41) to prevent orbital movement thereof.

REFERENCES:
patent: 3616882 (1971-11-01), White
patent: 3960470 (1976-06-01), Kinder
patent: 4390329 (1983-06-01), Thorson
patent: 4451217 (1984-05-01), White
patent: 4457677 (1984-07-01), Todd
GR-M Publication, Tokyo Instrument, Sep. 12, 1981.
Ausco Publication, Failsafe Brakes, June 1982.

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