Valve arrangement, for example a proportional valve

Details Valve arrangement, for example a proportional valve Valve arrangement, for example a proportional valve

1990-11-19

1992-09-08

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Plural separately controlled waste passages for single...

91459, 13762565, 13759617, F15B 1108, F15B 13044

Patent

active

051448815

ABSTRACT:
As a result of an appropriate displacement of the control member, a connection of a fluid unit can, for pressure relief, be connected to a line leading to a low-pressure reservoir or be isolated from this line and/or, for the exertion of pressure, connected to a connection of a pressure source. Should the control member jam and be incapable of following an appropriate actuating stroke of a servomotor into the pressure-relieving position, a safety relief valve is opened by means of the actuating stroke.

REFERENCES:
patent: 4620565 (1986-11-01), Brown
patent: 4844119 (1989-07-01), Martinic
patent: 5000420 (1991-03-01), Hendrixon et al.
patent: 5036885 (1991-08-01), Miura
patent: 5051631 (1991-09-01), Anderson
Article entitled "Olhydraulik" by Dr. Heinz Zoebl, Wion, Mit 439 Textabbildungen, 1963 pp. 261-262.

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