LOCOMOTIVE GEARED WHEEL UNIT Russian patent published in 2015 - IPC B61C9/50 F16D127/06 

FIELD: transport.

SUBSTANCE: geared wheel unit consists of traction motor fitted on mounted axle and engaged therewith by gearing. Traction motor end surface opposite said gearing has air cylinder body secured thereat with spring-loaded piston. Said piston has the set of different-diameter slotted sleeves at its end to interact. On one side, with the slots of ring rigidly secured to traction motor stator end and. Om opposite side, with motor armature shaft slots. Air cylinder body is connected by pipe with standby tank of diesel locomotive brake system.

EFFECT: higher reliability.

2 dwg