PARKING BRAKE FOR ROLLING STOCK BRAKE SYSTEM Russian patent published in 2012 - IPC B60T13/24 B60T17/08 B60T15/02 B61H13/34 B61H13/04 

FIELD: transport.

SUBSTANCE: invention relates to rolling stock brakes. Parking brake drive comprises hollow housing, piston assembly, piston rod, piston rod lock, spring element, hydraulic fluid line, first elongated thread, ratchet gear, opening made axially in the latter, second thread made on axial hole surface, shaft and pawl. Parking brake comprises ratchet arranged on piston rod with brake drive thread to turn thereon, and pawl to be engaged with said pawl. Manual uncoupling gear for railway car parking brake comprises bracket, L-like cutout made in said bracket, elongated element of connection link, means for coupling second end of connection link with said brake drive, grip element and clamp means. Brake system comprises first and second spaced apart braking beams, first and second levers of force transfer, first and second force transfer means, and pusher rod. Parking brake manual uncoupler comprises valve arranged inside aforesaid hydraulic fluid line to communicate said brake with brake main line, and manual control means connected with said valve. Parking brake manual uncoupler comprises valve arranged inside aforesaid hydraulic fluid line to communicate said brake with brake main line, and manual control means connected with said valve. Valve inlet is directly communicated with brake main line.

EFFECT: improved operating performances, brake operation after pressure drop in brake main line.

30 cl, 13 dwg