Railway rolling stock – Trucks – Levelers
Patent
1977-10-25
1979-09-11
Makay, Albert J.
Railway rolling stock
Trucks
Levelers
105175A, 105184, 105199R, 105210, 267 3, B61F 110, B61F 304, B61F 524, B61F 552
Patent
active
041671430
ABSTRACT:
A rail vehicle having a driving bogie frame and a vehicle frame, in which these frames are interconnected by means of supporting springs and at least one of the end faces of said frames are interconnected by air springs. The air springs communicate with a source of compressed air through a conduit system having two branch lines respectively connected to the interior of the air springs while adjustable pressure control valves are respectively arranged in these branch lines. The two branch lines are interconnected by a conduit having an adjustable throttle valve interposed therein. Depending on the respective driving direction of the vehicle by adjusting the valves in the branch lines a differential pressure is established between the air pressures in the air springs connected to the branch lines so that the respective end of the bogie frame is pulled up or pressed down so that the wheel set relief is compensated for. Thus the control of the air pressure in the air springs during operation of the rail vehicle is carried out automatically in conformity with the pulling force acting upon the pulling force of the driving body of the vehicle.
REFERENCES:
patent: 2969975 (1961-01-01), Chuba
patent: 3896740 (1975-07-01), Kreissig
Beltran Howard
Makay Albert J.
Thyssen Industrie Aktiengesellschaft
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