Three-point regulator with feedback

Details Three-point regulator with feedback Three-point regulator with feedback

1976-07-20

1977-07-26

Maslousky, Paul E.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

91388, 91433, F16K 3112, F16K 3136, F15B 1316

Patent

active

040376192

ABSTRACT:
The specification describes a three-point regulator, for example of the pneumatic type, in the case of which with a drop and a rise in the measurement value of the regulation quantity after overcoming an operating distance a respective switch is operated. One switch is moved or turned by a servo-member (motor) in one direction and the other switch is moved or turned by the servo-member in the other direction. A feedback is provided which acts on both switches in such a manner that the operating distance is increased and accordingly the switched-on switch is switched off.

REFERENCES:
patent: 2285540 (1942-06-01), Stein et al.

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