Load sensitive brake control valve assemblies

Details Load sensitive brake control valve assemblies Load sensitive brake control valve assemblies

1977-02-10

1978-05-23

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Load control

Responsive to fluid pressure spring

188195, 188349, 303 6C, B60T 818, B60T 826

Patent

active

040907406

ABSTRACT:
A control valve assembly for a vehicle braking system comprises a control valve having a control valve operating member operable to control communication between an inlet and an outlet, a pivoted lever arrangement subjected to an input force applied by a spring and applying an output force to the valve operating member, and a device for varying the lever ratio of lever arrangement in dependence upon vehicle loading. The input force applied to the lever arrangement by the spring is substantially constant and independent of vehicle loading, variations in the lever ratio varying the load transmitted to the valve operating member.

REFERENCES:
patent: 3329471 (1967-07-01), Oberthur
patent: 3512845 (1970-05-01), Farmery et al.
patent: 3709568 (1973-01-01), Miyake et al.

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