Pressure control device for vehicle hydraulic braking system

Fluid-pressure and analogous brake systems – Flow retarder – Isolation valve

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Details

200 82D, 340 52C, B60T 1718

Patent

active

039514692

ABSTRACT:
A pressure control device for use in a dual-circuits hydraulic braking system for a vehicle having a plunger assembly slidably mounted in a housing and adapted to be moved by differential pressure acting across the assembly for compensating variation in pressures in both braking circuits, and an indicator means for indicating failure in pressure in either of the circuits, in which the plunger assembly comprises two sleeves working in aligned bores in the housing, a plunger the opposite ends of which being slidably received in aligned bores formed in respective sleeves, and a stop for limiting movement of the plunger relative to the sleeve in one direction, and that movement of one of the sleeves over a predetermined distance is prevented by a stop while the other sleeve and the plunger can move further.

REFERENCES:
patent: 1253672 (1918-01-01), Decker
patent: 1808654 (1931-06-01), Hagens
patent: 2226136 (1940-12-01), Parker
patent: 2842897 (1958-07-01), Finn
patent: 2844914 (1958-07-01), Finn
patent: 3015188 (1962-01-01), Reinecker et al.
patent: 3123362 (1964-03-01), Elvers, Sr.
patent: 3304647 (1967-02-01), Szekely
patent: 3672732 (1972-06-01), Green

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