High response, compact solenoid two-way valve

Details High response, compact solenoid two-way valve High response, compact solenoid two-way valve

1988-12-29

1991-04-09

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Including solenoid

25112921, 251333, 25112905, F16K 3106

Patent

active

050058037

ABSTRACT:
A compact, high response regulating valve has a solenoid modulated armature and plunger construction. The solenoid assembly and armature minimize magnetic flux leakage by maintaining the armature in close proximity to the induced magnetic field. In one embodiment, the lightweight armature has a number of holes to increase the speed at which it may be modulated. Mounted to the armature is a regulator plunger which controls fluid communication between the valve's inlet and outlet ports. Normally spring-biased closed, the plunger uses a line seal to maximize flow with minimal longitudinal plunger movement. Plunger response time is enhanced by eliminating elastomeric friction (i.e., eliminating O-rings and replacing them with a number of notches about the plunger periphery). A conical seat and bevelled plunger provide an effective line seal.

REFERENCES:
patent: 881060 (1908-03-01), Cook
patent: 2297535 (1942-09-01), Bryant
patent: 2927737 (1960-03-01), Zeuch et al.
patent: 4368755 (1983-01-01), King
patent: 4589528 (1986-05-01), Axthammer et al.
patent: 4610424 (1986-09-01), Koppers et al.
patent: 4774976 (1988-10-01), Janecke et al.
patent: 4785920 (1988-11-01), Knecht et al.
patent: 4796855 (1989-01-01), Sofianek

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