Variable load control valve with dual diaphragms reinforced by w

Details Variable load control valve with dual diaphragms reinforced by w Variable load control valve with dual diaphragms reinforced by w

1993-06-11

1994-08-23

Le, Mark T.

Fluid-pressure and analogous brake systems

Load control

Responsive to fluid pressure spring

303 228, 303 40, B60T 818, B60T 1502

Patent

active

053402030

ABSTRACT:
A diaphragm-type of variable load control valve device having a diaphragm piston assembly for effectively providing pressurized fluid to the brake cylinders of a railway vehicle in accordance with the brake demand established by a vehicle operator and at a pressure level in conformance with the load condition of the vehicle.

REFERENCES:
patent: 2062500 (1936-12-01), Casler et al.
patent: 3285674 (1966-11-01), Eaton
patent: 3460872 (1969-08-01), Reno et al.
patent: 3504698 (1970-04-01), Frill
patent: 3517971 (1970-06-01), Scott
patent: 3583772 (1971-06-01), Reno
patent: 4453779 (1984-06-01), Bridigum

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