Pressure regulating valve with feedback control

Details Pressure regulating valve with feedback control Pressure regulating valve with feedback control

1984-02-09

1986-01-21

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137492, 1376275, 251 3001, G05D 1610

Patent

active

045652090

ABSTRACT:
The invention relates to a pressure regulating valve for pneumatic and hydraulic pressure media wherein a higher primary pressure is regulated to a desired lower secondary pressure. The valve comprises a primary connection, a secondary connection and a relief connection, there being a switch valve between the primary connection and the secondary connection, a relief valve between the secondary connection and the relief connection, and a control connection for controlling the operation of the valve in response to an external controlled quantity. The controlled quantity may be the secondary pressure output of the valve, or may be another pressure or a mechanical displacement of a larger system.

REFERENCES:
patent: 2783769 (1957-03-01), Philbrick
patent: 3071147 (1963-01-01), Dudzinski
patent: 4071042 (1978-01-01), Lombard
patent: 4117865 (1978-10-01), Beck
patent: 4452267 (1984-06-01), Ott

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