Solenoid valve

Details Solenoid valve Solenoid valve

1993-04-20

1995-04-04

Fox, John C.

Fluid handling

Systems

Supply and exhaust

3031192, 1374842, 25112907, F16K 3106

Patent

active

054028248

ABSTRACT:
A solenoid valve incorporates a pressure chamber with passage to an inlet port, a pressure chamber with passage to an outlet port, and an electromagnetically-actuatable valve arrangement fitted in the fluid line between the two pressure chambers. The chambers are manufactured inside a housing inserted into a housing cavity bored into a mounting block. The opening or closing of the valve arrangement switches fluid lines, wherein each pressure chamber is fitted on either side in the axial direction with a seal in which the pressure-subjected area of each seal is virtually equal. Each pressure chamber is connected with passage to a corresponding inlet or outlet port. Thus, no axial force in any one direction is generated no matter how high the pressure becomes within a pressure chamber.
Further, a pair of solenoid valves can be inserted face-to-face on either side of a housing cavity bored through the full length of the mounting block. The valve arrangement of each solenoid valve is set inside a common monolithic housing, thereby enabling another pressure chamber connected to either an inlet port or outlet port as appropriate, to be common to both solenoid valves.

REFERENCES:
patent: 2826215 (1958-03-01), Wolfslau et al.
patent: 4478241 (1984-10-01), Cardenas-Franco et al.
patent: 5167442 (1992-12-01), Alaze et al.

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