Solenoid valve

Details Solenoid valve Solenoid valve

1990-02-16

1990-10-09

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

25112915, F16K 3106

Patent

active

049615610

ABSTRACT:
A solenoid valve plunger 23 has a conical tip portion 25 which is insertable into a valve seat 5 to close it, a cylindrical portion 24 slidable within a magnetic plate 2, and an annular raised portion 26 for deflecting a fluid flow between the conical portion of the plunger and the valve opening away from the magnetic plate. Alternatively, the plunger may have a nonmagnetic conical tip portion 32 which is insertable into the valve opening to close it, and a partially nonmagnetic cylindrical portion slidable within the magnetic plate, the magnetic plate having a nonmagnetic guide portion 35. Both constructions avoid the impeding accumulation of magnetic particles at the plunger base.

REFERENCES:
patent: 4501407 (1985-02-01), Murray
patent: 4720078 (1988-01-01), Nakamura et al.

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