Derailment detector unit with extended sensitivity

Abstract

The invention relates to a derailment detector unit (4) for sensing vertical acceleration peaks on a rail vehicle comprising a vertical movable filling mass (6) connected in series with a compression spring (7) for transforming significant vertical acceleration peaks into an actuation stroke of a mechanically coupled emergency brake valve assembly (8) for actuating a compressed air brake system by venting a main break pipe (HL), wherein the emergency brake valve assembly (8) is actuated via a trigger mass piston (9) preloaded due to vertical motion of the filling mass (6), in order to form a double-mass triggering unit for the emergency brake valve assembly (8).

Description

technical field

[0001] The invention relates to a derailment detector unit for detecting a peak vertical acceleration on a rail vehicle, the derailment detector unit comprising a vertically movable filler mass connected in series with a compression spring for converting the effective peak vertical acceleration into The actuation impulse of the mechanically linked emergency brake valve assembly used to actuate the compressed air brake system by venting the main brake line (HL). Furthermore, the invention relates to a rail vehicle with a compressed air braking system, which rail vehicle is provided with such a derailment detector unit. Background technique

[0002] The derailment detector unit may be used on any rail vehicle where emergency braking may be activated by venting the main brake pipe, in particular on freight cars carrying dangerous goods. Derailment of a rail vehicle is a rare, unique and undesirable event, so immediate emergency braking must be activated. Varia...

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