Rail vehicle braking system for a rail vehicle
AssigneeFaiveley Transport Amiens
InventorsClaudino GONCALVES, Damien BEAUVOIS
Life of this patent
Estimating the term…
Abstract
Disclosed is a brake system for a railroad vehicle, including a parking brake provided with a piston and having a first configuration in which the piston is in a working position in which it acts on a lining support and applies a predetermined force to a brake disc; a second configuration in which the piston is in a rest position in which it does not act on the support and does not apply any force to the disc; and a third configuration in which, when the vehicle is not at a standstill and the ambient temperature in the environment of the disc is greater than a threshold value, it forces the piston to move towards a trip position different from its working and rest positions, in order to limit or cancel the force applied to the disc.
Claims20
A rail vehicle braking system for a rail vehicle having braking members (5) with at least one lining (7;
- 807) and at least one disk (6), comprising a parking brake (2) having a body (8;
- 508) presenting a cavity (10;
- 510), a lining mounting (32;
- 832) which is movable relative to said body (8;
- 508) and configured to act on at least one said braking member (6, 7;
- 807), as well as an actuator (19) comprising a braking piston (21;
- 321;
- 521;
- 621) at least partly accommodated in said cavity (10;
- 510), movable relative to said body (8;
- 508) and configured to act on said lining mounting (32;
- 832);
- said system (1) having a first configuration in which said braking piston (21;
- 321;
- 521;
- 621) is in a resting position in which it does not act on said lining mounting (32;
- 832) and it does not apply any load to said at least one braking member (6, 7;
- 807), whereby said parking brake (2) is not applied, as well as a second configuration in which said braking piston (21;
- 321;
- 521;
- 621) is in a working position in which it acts on said lining mounting (32;
- 832) and it applies a predetermined load to said at least one braking member (6, 7;
- 807), whereby said parking brake (2) is applied;
- said system (1) further comprising a third configuration in which, when said rail vehicle is not stationary and the ambient temperature in the environment of said braking member (6, 7;
- 807) is greater than a predetermined threshold value, it forces the movement of said braking piston (21;
- 321;
- 521;
- 621) from its working position into a fuse position different from its resting position, in which fuse position the load applied to said at least one braking member (6, 7;
- 807) is limited or cancelled
Dependencies are inferred from the claim text.