Modulator valve

Details Modulator valve Modulator valve

1986-12-01

1987-07-28

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137508, 1376275, G05D 1610

Patent

active

046826211

ABSTRACT:
A modulator valve has a modulator member which is slidably mounted in a cylinder and through which an air flow passage extends. A valve member is slidably mounted in the air flow passage and is operable to open and close the through passage. By providing a resilient actuator for displacing the modulator member in a first direction and a stop for arresting the movement of the flow control valve while permitting movement of the modulator valve it is possible to provide for modulated opening and closing of the control valve by balancing the pressure applied by the resilient actuator against the air pressure applied to the modulator member downstream of the through passage.

REFERENCES:
patent: 3204972 (1965-09-01), Alfieri
patent: 3485259 (1969-12-01), Ulbing
patent: 4240464 (1980-12-01), Schink
patent: 4293118 (1981-10-01), Olson
patent: 4526197 (1985-07-01), Martin

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