3-position 3-way solenoid valve

Details 3-position 3-way solenoid valve 3-position 3-way solenoid valve

1995-09-28

1996-10-22

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

13759617, 25112919, B60T 836

Patent

active

055670237

ABSTRACT:
A 3-position 3-way solenoid valve for an anti-lock brake system simplifies a structure of a modulator block and has an excellent assemblage with the modulator block. The solenoid valve has a first chamber communicated with an inlet port and outlet port and a second chamber communicated with the first chamber via a barrier-wall hole in a barrier wall, in which the first chamber includes an inlet valve for opening/closing the inlet port, an outlet valve for opening/closing a through hole, a plunger, a first spring between the inlet valve and plunger, a second spring between the plunger and outlet valve and a cylinder having one end connected to the outlet valve no accommodate the inlet valve, and a second chamber communicated with an exhaust port includes an armature. One end of a push rod is fixed to the armature and extends to the first chamber via the barrier-wall hole and thruhole in the outlet valve, and other end thereof is coupled to the plunger.

REFERENCES:
patent: 5234030 (1993-08-01), Kervagoret et al.
patent: 5299859 (1994-04-01), Tackett et al.
patent: 5333945 (1994-08-01), Volz et al.

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