Hydraulic pressure control valve assembly for automotive hydraul

Details Hydraulic pressure control valve assembly for automotive hydraul Hydraulic pressure control valve assembly for automotive hydraul

1979-05-07

1981-08-18

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

303 24C, 303 24F, B60T 814

Patent

active

042843073

ABSTRACT:
A hydraulic pressure control valve assembly comprising a proportioning valve and a deceleration sensing valve is such arranged that when the magnitude of hydraulic pressure in an expandable chamber of the deceleration sensing valve exceeds a predetermined value in response to rapid deceleration of the vehicle, a piston associated with the expandable chamber is brought into contact with a plunger of the proportioning valve thereby suppressing the axial movement of the plunger in a direction toward the piston. Thus, under this condition, the normal operation of the proportioning valve stops so that the hydraulic pressure in the fluid inlet port is supplied to the fluid outlet port, keeping the pressure unchanged.

REFERENCES:
patent: 3899217 (1975-08-01), Ohta
patent: 4062597 (1977-12-01), Sawyer et al.
patent: 4133584 (1979-01-01), Ohta et al.

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