Variable load valve

Details Variable load valve Variable load valve

1987-07-09

1988-11-22

Kashnikow, Andres

Fluid-pressure and analogous brake systems

Load control

Railway vehicle

303 225, 303 36, 303 85, B60T 818, B60T 1552, B60T 1134

Patent

active

047861177

ABSTRACT:
A variable load brake control equipment for a road/rail type vehicle comprising variable load brake apparatus located between the auxiliary reservoir and a supplemental volume reservoir in the supply line upstream of the vehicle control valve device. During braking, the auxiliary reservoir pressure and the supplemental volume reservoir pressure combine to provide an unmodulated buildup of brake pressure until the brake pressure reaches a value that varies as a function of the vehicle load. At this point, the variable load valve device operates to isolate the auxiliary reservoir, so that a continued buildup of brake pressure is modulated by reason of the fact that the supplemental volume reservoir alone supplies braking pressure.

REFERENCES:
patent: 2178928 (1939-11-01), Campbell
patent: 2918332 (1959-12-01), Hines
patent: 3169801 (1965-02-01), Racki
patent: 3275380 (1966-09-01), May
patent: 3385636 (1968-05-01), Cruse
patent: 4127308 (1978-11-01), McEathron
patent: 4387933 (1983-06-01), Cripe

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