Brake

Details Brake Brake

1988-11-17

1990-05-29

Reger, Duane A.

Brakes

Operators

Electric and mechanical

188365, F16D 6527

Patent

active

049287974

ABSTRACT:
An internal shoe drum brake has a body (1) carrying a plurality of circumferentially spaced friction elements (2) movable into engagement with a rotatable drum (3) by a hydraulic system including an actuator (5) having a pressure-applying cylinder (2) in which a pressure-generating piston (21) is driven by an electrical stepper motor (28), slave cylinders (4) which actuate the friction elements, and internal ducts (7, 8) for transmitting pressure from piston (21) to slave cylinders (4).

REFERENCES:
patent: 2324979 (1943-07-01), Hatch
patent: 3790225 (1974-02-01), Wehde
patent: 4130188 (1978-12-01), Askew
patent: 4327414 (1982-04-01), Klein

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