Control valve

Details Control valve Control valve

1982-06-29

1984-06-26

Tapolcai, William E.

Automatic temperature and humidity regulation

Motors

Fluid-operated

137491, 236 93R, G05D 23275

Patent

active

044561709

ABSTRACT:
A pressure valve for heating a pressure medium and maintaining its temperature constant, has a control slider provided with a throttle, a pilot valve influencing a position of the control slider and having a spring-loaded valve member and a valve seat, a thermosensor arranged to sense the pressure medium and to determine throttling of the latter, wherein the thermosensor controls an electromagnet acting upon the pilot valve, and the spring of the pilot valve in the opened position of the valve member is at least partially pretensioned, and upon actuation of the electromagnet and assuming by the valve member the closed position the spring is tensioned to a value corresponding an opening pressure.

REFERENCES:
patent: 2830767 (1958-04-01), Herbenar
patent: 2975976 (1961-03-01), Smith et al.
patent: 3401605 (1968-09-01), Born
patent: 3608576 (1971-09-01), Wilhelm
patent: 4303197 (1981-12-01), Sandau
patent: 4336903 (1982-06-01), Zirps

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