Magnetic valve for fluid control

Details Magnetic valve for fluid control Magnetic valve for fluid control

1985-11-26

1987-09-01

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

With means to bias valve open

25112916, 239585, F16K 3106

Patent

active

046903747

ABSTRACT:
A magnetic valve used for fluid control includes a valve housing, having a magnetic coil surrounding a core, and an armature, which is joined to a valve closing element which cooperates with a fixed valve seat. An end on which a collar is embodied, the valve closing element protrudes into an interior of a spring housing, which is slidably disposed counter to the force of a counterspring. A first bent end of an angle element is supported on a cover of the spring housing, while a second bent end grips the collar from behind and protrudes through a bottom opening of the spring housing. In the open position of the valve closing element, the second bent end is spaced apart from the collar by a distance a. In the valve closing element there is a compensation bore leading to the interior of the spring housing. After actuation of the magnetic coil, the armature displaces the valve closing element toward the valve seat counter to the force of the restoring spring. Only with a delay does a fluid pressure build up in the interior which displaces the spring housing toward the housing stop, thereby stressing a supplementary spring. When the magnetic coil excitation is interrupted, the forces of the restoring spring and of the supplementary spring act in common in the opening direction of the valve closing element, thereby effecting a rapid opening.

REFERENCES:
patent: 2217141 (1940-10-01), Sprenkle
patent: 2980139 (1961-04-01), Lynn
patent: 4475690 (1984-10-01), Hascher-Reichl et al.
patent: 4512549 (1985-04-01), Gast et al.

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