DEVICE TO CONTROL DUMP CAR DUMPING AIR CYLINDERS (AIR RETARDER) Russian patent published in 2011 - IPC B61D9/00 

FIELD: transport.

SUBSTANCE: invention relates to compressed air feed control devices incorporated with dump car dumping air cylinders. proposed device comprises housing accommodating cylinder 2 that houses piston 3, inlet valve 7, discharge valve 5 and bypass valve 8. Space above discharge valve communicates with atmosphere. Space 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. Car body inclination control chamber is arranged between piston and body bottom communicated with air line to release unauthorised compressed air into atmosphere and made up of automatic valve. Valve shut-off element is arranged in open position to be retained thereat by flexible element acting toward seat valve by compressed air pressure that, in standard conditions, exceeds flexible element force, and let airflow pass via valve to generated sound signal.

EFFECT: higher reliability.

3 dwg