Proportional solenoid valve and connector

Details Proportional solenoid valve and connector Proportional solenoid valve and connector

1979-02-23

1981-01-20

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Remote or follow-up control system for electrical actuator

251141, F16K 3106

Patent

active

042458153

ABSTRACT:
A solenoid controlled proportional flow valve comprises an operating solenoid having an axially extending coil, and a valve body having an axially extending cavity with a fluid inlet passage, a fluid outlet passage and a valve seat surrounding one of the passages on one end wall of the cavity. A valve plunger is axially movable within the cavity for movement of one end wall thereof toward and away from the valve seat. Biasing means is interposed between the opposite ends of the cavity and plunger, the biasing means including a generally conical abutment having a rounded free end preloaded in contact with a resilient deformable elastomeric spring having a diameter at all times greater than the portion of said conical abutment member in contact therewith. The biasing means normally maintains the valve plunger in contact with the valve seat, and the solenoid moves the plunger away from the valve seat in proportion to the flow of current therethrough.
A connector permits the valve (as well as other valves of variant design) to be connected to a printed circuit board, with all pneumatic and electrical connections to the valve on the side of the board remote from the valve.

REFERENCES:
patent: 3684238 (1972-08-01), Michellone et al.
patent: 4108420 (1978-08-01), West et al.

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