Control valve assembly

Details Control valve assembly Control valve assembly

1985-06-03

1986-11-25

Nilson, Robert G.

Fluid handling

Systems

Multi-way valve unit

25112905, 25112917, F16K 3106

Patent

active

046242856

ABSTRACT:
A control valve assembly 10 having a pair of axially opposed seats 54, 56 is disclosed. A poppet 66 is disposed in a control chamber 58 between the seats. The poppet is movable between the seats to establish an average pressure in the control chamber. The poppet is an integral portion of an armature 28. In one embodiment, the armature is urged in a first direction by a solenoid and in the opposite direction by a conical spring 76 which extends between the armature and a housing of the valve. In another embodiment, the armature has a spherical zone 94 on a convex surface 92 and a spring guide 84 engages the spring and has a concave surface which engages the spherical zone. In still another embodiment, means 310, such as diaphragms 312 or 314 or the slidable engagement 318, 320 between the housing 224 and the first end 251 of the armature are provided for radially positioning the armature as the armature is moved between the seats.

REFERENCES:
patent: 2750961 (1956-06-01), Uritis
patent: 4304391 (1981-12-01), Yamaguchi
patent: 4538645 (1985-09-01), Perach

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