Solenoid valve

Details Solenoid valve Solenoid valve

1982-09-30

1985-06-25

Rosenthal, Arnold

Fluid handling

With casing, support, protector or static constructional...

251129, 251139, 251 65, 13762565, F16K 1107, F16K 3108

Patent

active

045247978

ABSTRACT:
The solenoid valve has an exciter coil formed with a central passage which at one end guides a plunger or armature of a permanently magnetic material which is polarized in the direction of its axial movement. At the other end of the passage there is provided a tubular core of a magnetically soft material which acts as a mechanical limit stop for the armature and is also shaped as a valve seat controlled by the end face of the armature. An annular magnetically conductive member is arranged at the other end of the coil around the armature and is spaced from the latter by an aggregate so as to act as a magnetic holding member for the armature when the coil is energized and the armature is displaced to its working position away from the stop member.

REFERENCES:
patent: 3529806 (1970-09-01), Kozel
patent: 4005733 (1977-02-01), Riddel
patent: 4102526 (1978-07-01), Hargraves
patent: 4159026 (1979-06-01), Williamson
patent: 4211257 (1980-07-01), Sakakibara
patent: 4322057 (1982-03-01), Yamanaka et al.
patent: 4326696 (1982-04-01), Ishikawa et al.

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