Multi-disk braking device
First Claim
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1. A multi-disk braking device for a vehicle equipped with a braking retarder, which device comprises:
- a first set of disks (4) made from a metallic material and of which at least some are integrally connected, in terms of rotation, to a rotary element (2) of said vehicle;
first pressure means (6) capable of acting on the first set of disks (4) and joined to a stationary element (3) of said vehicle;
a second set of disks (5) made from carbon and of which at least some are integrally connected, in terms of rotation, to said rotary element;
second pressure means (7) capable of acting on the second set of disks and joined to said stationary element of the vehicle, said second pressure means being normally inoperative while said braking retarder is operable;
means (CA, LA, DI, etc.) for controlling the actuation of said first pressure means (6) as soon as the vehicle, braked by said retarder, reaches a prescribed limiting speed; and
means (DE) for detecting an operational failure of said retarder and for actuating the second pressure means (7) to stop said vehicle using said second set of disks.
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Abstract
A multi-disk braking device for a vehicle, particularly a train equipped with a braking retarder, includes a first set of metallic braking disks and a second set of carbon braking disks. Under normal operation of the train, the braking retarder is used to slow the train to a predetermined relatively slow speed, and the metallic disks are then actuated to complete the stop. If the braking retarder fails, the carbon disks, not used in normal operation, are actuated to bring the train to a slow speed or to a complete stop.
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Citations
15 Claims
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1. A multi-disk braking device for a vehicle equipped with a braking retarder, which device comprises:
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a first set of disks (4) made from a metallic material and of which at least some are integrally connected, in terms of rotation, to a rotary element (2) of said vehicle; first pressure means (6) capable of acting on the first set of disks (4) and joined to a stationary element (3) of said vehicle; a second set of disks (5) made from carbon and of which at least some are integrally connected, in terms of rotation, to said rotary element; second pressure means (7) capable of acting on the second set of disks and joined to said stationary element of the vehicle, said second pressure means being normally inoperative while said braking retarder is operable; means (CA, LA, DI, etc.) for controlling the actuation of said first pressure means (6) as soon as the vehicle, braked by said retarder, reaches a prescribed limiting speed; and means (DE) for detecting an operational failure of said retarder and for actuating the second pressure means (7) to stop said vehicle using said second set of disks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification