Control arrangement for a hydraulic force transmission

Details Control arrangement for a hydraulic force transmission Control arrangement for a hydraulic force transmission

1979-01-25

1981-01-27

McCarthy, Edward J.

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

91461, F15B 1110

Patent

active

042468329

ABSTRACT:
A control arrangement for a hydraulic force transmission, especially for a hydraulically operated lifting device on agricultural vehicles comprises, besides a main control slide, a pressure control slide and a blocking device, an auxiliary slide arranged in a bore of the pre-control slide. The hydraulic working fluid is fed from the main slide directly to the blocking device and a special arrangement of the auxiliary slide in the hydraulic control circuit permits a compact and simple construction of the control arrangement, while preventing tight throttling of the fluid in either direction of the flow.

REFERENCES:
patent: 3625004 (1971-12-01), Holzbock
patent: 3903786 (1975-09-01), Walters
patent: 4007666 (1977-02-01), Bauer
patent: 4065922 (1978-01-01), Ott

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