RAIL VEHICLE BRAKE AIR DISTRIBUTOR REDUCTION DEVICE Russian patent published in 2007 - IPC B60T15/18 B61H11/02 

FIELD: railway transport.

SUBSTANCE: invention relates to reduction ("softness") devices of vehicle brake air distributors. Proposed reduction device of brake air distributor has movable partition rigidly connected by rod with valve separating channels of spool and main line chambers of air distributor. Pressure equalizing chamber is arranged over partition. Partition is made to provide closing of channel of main line chamber by valve of rod under action of pressure build in pressure equalizing chamber at standard braking conditions. Displacement of partition, when valve is open, is limited by stop arranged at distance sufficient to communicate spool and main line chambers. Step is made form of limiting ring.

EFFECT: improved operation of brakes owing to opening of reduction valve at small pressures and simplified design of said device.

1 dwg