Rotary hydraulic motor with brake system

Details Rotary hydraulic motor with brake system Rotary hydraulic motor with brake system

1990-11-09

1992-05-19

Bertsch, Richard A.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418181, 188170, 192 136, F03C 208, F04C 210

Patent

active

051143240

ABSTRACT:
A rotary hydraulic motor which comprises a brake which is adapted to be applied under the pressure of springs and to restrain the output shaft of the hydromotor when the hydromotor is not pressurized and which is arranged to a supply of hydraulic liquid under pressure to the hydraulic motor. In order to ensure that the hydraulic liquid can be withdrawn from the hydraulic cylinder in a simple manner when the motor has stopped so that the brake can subsequently be applied, the piston of the hydraulic cylinder is provided with an orifice plate or a throttle bore through which the hydraulic liquid can enter a chamber of the hydraulic motor.

REFERENCES:
patent: 3403763 (1968-10-01), Hilpert et al.
patent: 3616882 (1971-11-01), White
patent: 3960470 (1976-06-01), Kinder
patent: 4415067 (1983-11-01), Cory
patent: 4667784 (1987-05-01), Cronin
patent: 4981423 (1991-01-01), Bissonette

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