Parking brake control system for railway vehicles

Details Parking brake control system for railway vehicles Parking brake control system for railway vehicles

B - Operations, Transporting

60

T

303/65

B60T 17/16 (2006.01) B61H 1/00 (2006.01) F16D 65/32 (2006.01)

Patent

CA 1116661

(Case No. 6968) ABSTRACT OF THE DISCLOSURE A parking brake for use primarily on railway vehicles of the mass transit type in conjunction with the service brake apparatus but operable independently thereof. A parking brake hydraulic cylinder is mechanically connected to the brake shoe hanger of the brake unit. After the vehicle has been brought to a stop, a parking brake application may be made by supplying pressure, by a handpump, to the hydraulic cylinder which also includes a lock-nut actuable by said pressure, in excess of a certain pressure for locking the parking brake hydraulic cylinder in its applied position. A relief valve is provided for relieving the hydraulic cylinder of hydraulic pressure when the application is to be released.

331902

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