Flow rate control valve system

Details Flow rate control valve system Flow rate control valve system

1986-11-18

1988-02-09

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Having means to produce digital pulses

25112908, 25112911, 2511292, F16K 3104

Patent

active

047237546

ABSTRACT:
A flow rate control valve system in which a valve plug is linearly driven against a valve seat by a stepping motor. The valve plug is fixed to a sleeve that has internal threads mating with external threads on the motor shaft. Splines prevent rotation of sleeve and plug. A bearing is interposed between a smooth end of the shaft and the plug.

REFERENCES:
patent: 4650159 (1987-03-01), Shimamura

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