Solenoid valve

Details Solenoid valve Solenoid valve

1989-05-16

1990-01-30

Nilson, Robert G.

Fluid handling

Systems

Sequentially progressive opening or closing of plural valves

25112915, 335262, F16K 3106

Patent

active

048966991

ABSTRACT:
In a conventional solenoid valve, a solenoid coil is disposed on a spool of a non-magnetic material, which forms a magnetic path therefor. By contrast, according to the invention, a sleeve-shaped guide which is formed as part of a spacer of a magnetic material is fitted into the spool and a plunger is slidably fitted into the guide, so that the plunger and the spacer define part of the magnetic path for the solenoid, thus allowing an improved magnetic path to be defined.

REFERENCES:
patent: 3241005 (1966-03-01), Morris
patent: 4759255 (1988-07-01), Shimamura
patent: 4826130 (1989-05-01), Griffith
patent: 4836248 (1989-06-01), Stegmaier

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