Proportional valve

Details Proportional valve Proportional valve

1988-02-17

1988-12-13

Rosenthal, Arnold

Fluid handling

Convertible

Reversible check

335262, 25112915, 25112908, 25112918, 251368, F16K 3106

Patent

active

047903457

ABSTRACT:
A fluid flow control proportional valve having structure for providing mounting therein of any one of a plurality of different solenoid coils having different electromechanical characteristics for providing desired positioning of the movable valve thereof. The solenoid armature is slidably mounted within the solenoid tube by structure providing extremely low friction so as to provide improved accuracy in correspondence between the current flow through the solenoid coil and resulting positioning of the spool assembly of the valve. The structure for mounting the armature in the solenoid tube further defines a seal between the armature and solenoid tube.

REFERENCES:
patent: 3215902 (1965-11-01), Foley et al.
patent: 3510814 (1970-05-01), Nordfors
patent: 3684238 (1972-08-01), Michellone et al.
patent: 4004343 (1977-01-01), Marsden
patent: 4074700 (1978-02-01), Engle
patent: 4108420 (1978-08-01), West et al.

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