Variable load valve for railway vehicles

Details Variable load valve for railway vehicles Variable load valve for railway vehicles

1991-09-24

1992-09-08

Nilson, Robert G.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

303 225, 303 228, F16K 31126

Patent

active

051449854

ABSTRACT:
A variable load valve device for a railway car having an arrangement for changing the axial position of a variable area piston in order to adjust the output pressure of piston valve assembly in accordance with different load weights of the railway car. The axial position of a supply valve seat is set in accordance with a load weight signal to in turn set the axial position at which the piston assembly, including the variable area piston, assumes a lap condition.

REFERENCES:
patent: 3125379 (1964-03-01), Valentine
patent: 3413042 (1968-11-01), Herold
patent: 4077676 (1978-03-01), Hata
patent: 4883089 (1989-11-01), Tamamori
patent: 4917148 (1990-04-01), Tamamori

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