Impulse valve

Details Impulse valve Impulse valve

1981-08-25

1984-02-21

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

1376256, F15B 13043

Patent

active

044323913

ABSTRACT:
An impulse valve has a housing provided with a working chamber and a main piston movable in the working chamber; two preliminary control valves are electromagnetically operated for a short period to switch over the main piston into a selected switching position which is retained even if the preliminary control valve is deenergized. To reduce volume of the valve and to reduce manufacturing cost, a flexible diaphragm is arranged between the preliminary control valves and the main control valve and cooperates with two opposite valve seats in such a manner as to establish connection between an inlet port to the working chamber and alternatively to pressure-relieve the working chamber.

REFERENCES:
patent: 2981287 (1961-04-01), Caslow
patent: 3805837 (1974-04-01), Stampfli

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