Hydraulic control arrangement with at least one multiple positio

Details Hydraulic control arrangement with at least one multiple positio Hydraulic control arrangement with at least one multiple positio

1978-11-13

1980-07-29

Hershkovitz, Abraham

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

With means to control the working fluid to one working...

60484, 60DIG2, 91449, 91530, F15B 1116, F15B 1304

Patent

active

042145066

ABSTRACT:
A hydraulic control arrangement for hydraulic consumer includes a multiple position valve having a control slide movable by proportional magnets between a neutral position and a plurality of working positions, in which the magnets may be remote controlled from an analog desired value signal and in which a stop valve is provided in a control circuit leading from the consumer to an over-pressure valve, which in turn is connected, upstream of the multiple position valve, parallel to the consumer between a pressure conduit connected to a source of pressure and a return conduit connected to a tank.

REFERENCES:
patent: 2643515 (1953-06-01), Harsch
patent: 3910045 (1975-10-01), Herrmann

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