DEVICE FOR AUTOMATIC BRAKING OF TRAIN AT DERAILMENT Russian patent published in 2006 - IPC B61H11/02 B60T7/12 

FIELD: railway transport; speed and acceleration control systems.

SUBSTANCE: proposed device contains derailment detector unit whose output is connected with input of brake cut-in unit connected to braking device. Derailment detector unit consists of two chambers, one nest in the other. Outer chamber is provided with discharge hole communicating with atmosphere and hole communicating with train brake main line. Inner chamber is provided with discharge hole communicating inner chamber with atmosphere and intake hole communicating inner and outer chambers and overlapped by inertia mass limited in displacement by guide rod and pressed to intake hole by its weight and spring. Upper wall of inner chamber is made in form of diaphragm rigid center of which is connected with brake cut-in unit through spring-loaded valve closing discharge hole of outer chamber communicating with atmosphere.

EFFECT: improved reliability of device owing to introduction of additional symptom of derailment-increased of frequency of displacements of inertia mass at beginning of car derailment.

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