Empty and load sensing valve

Details Empty and load sensing valve Empty and load sensing valve

1976-06-14

1977-07-26

Halvosa, George E. A.

Fluid-pressure and analogous brake systems

Inertia control

137102, 1376275, 188195, B60T 818

Patent

active

040378799

ABSTRACT:
An empty-load valve structure for a railroad air brake system include a load sensing valve for sensing the loaded condition of a railroad vehicle and a pressure control valve. In one position of the load sensing valve, full pressure is applied through the pressure control valve to the vehicle brakes. In a second position of the load sensing valve, less than full pressure is applied through the pressure control valve to the vehicle brakes. In all positions of the load sensing valve, a piston movable within the pressure control valve is balanced by opposing air pressure created forces.

REFERENCES:
patent: 2362931 (1944-11-01), Rodway
patent: 3612621 (1971-10-01), Scott
patent: 3671086 (1972-06-01), Scott

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