Connecting valve and hydraulic oil safety and power system in wh

Details Connecting valve and hydraulic oil safety and power system in wh Connecting valve and hydraulic oil safety and power system in wh

1992-01-13

1993-06-08

Cohan, Alan

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 3001, 251 635, F16K 31122

Patent

active

052171990

ABSTRACT:
Connecting valve and hydraulic oil safety and power system in which the connecting valve is used.
This connecting valve (1) has at least one sealing location (5) which is actuated by means of a piston/cylinder arrangement. A piston (3) is subjected to a pressure fluid and moved against the force of a spring (7).
A connecting valve (1) is created which can be inspected for freedom of movement without influencing operation. The hydraulic oil safety and power system should be particularly operationally reliable by means of the connecting valve (1) in accordance with the invention. This is achieved by at least two pipes (17, 18) entering the drive volume (2) offset in the axial direction, of which pipes only one first pipe (17) is initially effective.

REFERENCES:
patent: 3833200 (1974-09-01), McCombs

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