DEVICE TO CONTROL DUMPCAR DUMPING AIR CYLINDERS (AIR RETARDER) Russian patent published in 2011 - IPC B61D9/12 

FIELD: transport.

SUBSTANCE: invention relates to railway rolling stock, namely, to body tilting cylinder control devices. Proposed device comprises casing 1 with cylinder 2 wherein piston 3 with seal moves, inlet and outlet valves. Space above outlet valve communicates with atmosphere, that above inlet valve communicates with air line and is separated by said valve and bypass valve from space communicated with body tilting cylinder block and atmosphere. Body tilt control compressed air feed chamber 11 is arranged between piston and body bottom, said chamber being communicated with air line via valve and/or other shut-off valve. Aforesaid chamber 11 comprises two bal shut-off valves 15 in position open for drain outlet 14 to keep each other in position stopping drain outlet 14. Positions of ball shut-off valves 15 vary automatically subject to control compressed air pressure. Open drain outlet 14 allows outflow of moisture into atmosphere. Unauthorised compressed air discharge is accompanied by comprehensive audible signal.

EFFECT: higher efficiency and reliability.

2 dwg