Air pressure modulated brake valve system

Fluid-pressure and analogous brake systems – Releasing – Motor

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Details

188170, 188359, 303 13, 303 40, 303 68, B60T 1322

Patent

active

040069397

ABSTRACT:
A brake pressure modulating control valve for a hydraulically operated brake system. The control valve includes a spool associated with an air spring chamber. The system includes equipment for modulating the air pressure in the air chamber for constantly and concurrently modulating the pressure of the hydraulic fluid in the brake system.

REFERENCES:
patent: 3259216 (1966-07-01), Klaus et al.
patent: 3423136 (1969-01-01), Lohbauer
patent: 3511276 (1970-05-01), Jessen et al.
patent: 3547234 (1970-12-01), Cummins et al.
patent: 3586138 (1971-06-01), Engle
patent: 3606485 (1971-09-01), Scott
patent: 3647030 (1972-03-01), Burnett
patent: 3650568 (1972-03-01), Poplawski

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