LOCOMOTIVE UNDERFRAME BRAKE Russian patent published in 2015 - IPC B61H13/20 B60T13/26 B60T17/08 B61H1/00 F16D59/00 

FIELD: transport.

SUBSTANCE: proposed brake comprises brake line communicated via cutoff valve with air pressure control valve, primary brake cylinder and auxiliary brake cylinder. Extra cylinder rod can reciprocate and is fitted in the groove of clevis hinged to two-arm lever of the main brake cylinder. Hemispheric groove is made in brake cylinder rod, in its lengthwise plane, to contact with ball-shaped retainer rigidly secured at spring-loaded plunger. Case of the latter is arranged at brake cylinder while its rod chamber is connected with spare tank via pipeline. Said plunger is provided with handle sliding in L-like groove made in case wall. Note here that head chamber of said case communicates with atmosphere.

EFFECT: higher reliability, simplified design and lower metal input.

2 dwg