DEVICE TO CONTROL DUMP CAR UNLOADING AIR CYLINDERS (AIR RETARDER) Russian patent published in 2010 - IPC B61D9/12 

FIELD: transport.

SUBSTANCE: invention relates to railway rolling stock, namely to car body inclination cylinder control devices. Proposed device comprises housing 1 with cylinder 2 wherein piston 3 reciprocates vertically and elastic sealing element 4 that moves vertically with respect to said piston driven by gravity, as well as inlet and outlet valves. Chamber above outlet valve communicates with atmosphere, chamber above inlet valve communicates with air line and is separated by said valve and bypass valve from chamber communicated with piston chambers of body inclination cylinder block. Compressed air intake chamber 11 is arranged between piston and housing bottom part to communicate with air line via valve and/or any other shut-off device. With pressure increasing in said chamber 11, sealing element of space about it are automatically blown and cleaned of rubbish.

EFFECT: higher reliability, ruling out possibility of car self-unloading, reduced wear of sealing element.

14 dwg