Flow control valve

Details Flow control valve Flow control valve

1982-06-22

1984-03-06

Gluck, Richard E.

Pumps

Plural pumps with individual or relative control

Bypass control

417440, 137607, F04B 2306, F04B 4106

Patent

active

044351348

ABSTRACT:
A discharge flow control rate valve for a multiple cylinder type reciprocating pump has a flow rate control valve associated with two cylinders of the pump. The flow control valve has a bypass passage connecting the suction side of the pump with a stepped cylinder chamber provided in the body member of the control valve. A needle valve fitted with a separate valving element is reciprocably disposed in the stepped cylinder chamber and operates to return a part of the fluid in the first cylinder or in the first and second cylinders to the suction side of the pump as a function of the intrusion distance of the valve into the cylinder chamber so as to modify the overall discharge flow rate of the pump.

REFERENCES:
patent: 2420052 (1947-05-01), Muir
patent: 2758543 (1951-12-01), Harr
patent: 4277031 (1981-07-01), Moumaneix et al.

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