Dual pressure, dual piston actuator

Details Dual pressure, dual piston actuator Dual pressure, dual piston actuator

1981-12-28

1983-11-01

Reger, Duane A.

Brakes

Operators

Multiple

188 724, F16D 6522

Patent

active

044126034

ABSTRACT:
A hydraulic actuator comprises a first piston mounted within a primary bore and moved in response to a low pressure force while a second piston is mounted in an axially aligned secondary bore and is moved in response to a high pressure force. The second piston engages the axially aligned first piston and both are moved under the influence of the high pressure while the first piston only is moved by the influence of the low pressure force. The piston areas are in proportion to each other as the separate pressure forces so as to provide a substantially equal output actuating force irrespective of the actuating pressure.

REFERENCES:
patent: 3312313 (1967-04-01), Moyer
patent: 3511346 (1970-05-01), Schlitz
patent: 3741354 (1973-06-01), Ooka et al.
patent: 3773148 (1973-11-01), Jean-Claude et al.

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