Electromagnetic valve

Details Electromagnetic valve Electromagnetic valve

1989-08-09

1990-05-08

Fox, John

Fluid handling

Systems

Supply and exhaust

25112921, F16K 3102

Patent

active

049229613

ABSTRACT:
An electromagnetic valve used in a hydraulic-pressure brake device, etc. is disclosed. The electromagnetic valve is so designed that the movement of its plungers is not hindered by the working liquid. Cylindrical members are arranged between the casing of the electromagnetic valve and its plungers, defining a bypass passage between the respective outer peripheral surfaces of the cylindrical members and the inner peripheral surface of the casing. With this structure, most of the liquid flowing with the opening/closing movement of valve members operatively connected to the plungers is allowed to flow through the bypass passage, thus making it possible to provide an electromagnetic valve having a high control responsiveness, without enlarging the size of the plungers.

REFERENCES:
patent: 4668024 (1987-05-01), Nakanishi et al.
patent: 4859005 (1989-08-01), Rey et al.

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