METHOD FOR WEAR RATE LOWERING IN "WHEEL-RAIL" SYSTEM OF RAILWAY VEHICLE Russian patent published in 2014 - IPC B61K3/00 

FIELD: transport.

SUBSTANCE: method for wear rate lowering in "wheel-rail" system of railway vehicle consists in feeding chemical agent to rail side surface and/or wheel flange by means of controlled mechanical devices. In this system, controlled mechanical devices are installed on locomotive, in cars, on switch assemblies and in bends. Carbon dioxide (CO₂) is used as chemical agent. The gas is fed on movable devices, during braking-acceleration - on locomotives, during braking - on cars, during railway train passing switch assemblies and bends. In this process, gas feeding while passing switch assemblies and bends is performed at rate not exceeding 2-4 L/min per controlled mechanical device for feeding chemical agent, and during braking and acceleration - not less than 6-8 L/min per controlled mechanical device for feeding chemical agent installed on locomotive. Agent flow is set by gas manometric pressure at output from controlled device nozzle.

EFFECT: lower wear rate of wheels and rails in bends and on switch assemblies, reduced formation of slides and deposits on wheels during braking and acceleration of locomotives.

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