SU17336A1 - Device for the stepped release of single-chamber air brakes - Google Patents

Description

The invention retracts to devices for, step-release of single-chamber air brakes, depending on the pressure levels in the air duct, equipped with a valve,

regulating the release of the air from the brake cylinder. In the proposed device, the release valve regulating the air outlet from the brake cylinder cylinder 1p is connected on one side by means of a non-return valve to the spare air reservoir, while on the other side there is a working surface under pressure from the brake cylinder by means of an intermediate valve that opens) SYa T01 only when braking, hitting, and closed

cst "5ths directly connected to the first output air pipeline from the

Moznb1: o cylinder on an additional path-with outside air. ; The drawing schematically depicts a view of the device. From the main pipeline 30, the pipes 14 and 50 lead through the emergency valves with the valve 31 into the chamber 13 of the valve 21. Next, from chamber 13, controlled by the intermediate valve 21, chamber 12 leads Under the piston 7 of the release valve. Piston 19, Comm; with valve 21, stem 20, slides around, with a price 53 that connects, with valve 21 closed, spaces 70 and 71 are on both sides of the pistons 19. In space 71, the front 19 does not lead through pipe 15 connected to the i channel 36 of the conventional air distributor, while from the space 70 above the piston 19, the hole 17 will lead out; The channel 23 from the space 71 leads further under the valve 80 in contact with the rod 9 carrying the piston 7 ,. and regulating the air outlet to the chamber 81, which is connected by the opening 82 with the outside air; The space of the piston 7 of the release valve is continuously connected by pipeline 4 with the reserve air tank 39. Pipe 4 has a check valve-83 so that the maximum pressure of the reserve air tank continuously dominates over the piston 7.

The drawing shows the position of the device during movement, with

in the main pipe 30, in the reserve air tank 39, in the chamber 13 and on the inside of the screw 7 there is the same

pressure and valves 21 and 80 are closed. The brake cylinder is connected by a pipe 38 with an air distributor duct 36, a pipe 15, a groove 53 and a hole 17 with external air. ;

When deceleration must start, then the pressure in the main pipeline decreases, so that the piston 3.1 of the control brake valve shifts to the right. The control valve of the brake valve connects the brake cylinder with the spare air tank until the pressure is out of balance. blessed by creating

step valve 56 will block the connection with the brake cylinder. At the same time, in the position of the intermediate valve and the valve for releasing nothing is changed. LiNh in the chamber 13 of the intermediate valve is reduced pressure. If the braking should start after braking, the pressure in the main pipe will increase, due to which the piston of the regulating brake valve returns to the position shown in the drawing. The pressure increase is transmitted through conduit 50 to chamber 13. The brake cylinder communicates via conduit 38, duct 36 and conduits 15 with space 71

under the piston 19, which, under the influence of an excess of elevation, rises. due to 1, the valve 21 opens. This opens the connection to the regulating brake / valve, and the groove 53 and the hole 1) 7 overlap the piston 19.

Now the pressure from the main pipeline is transmitted under the piston 7, and the pressure of the cake is acting on Apan 80.

cylinder. Under the influence of these forces, porous Hb 7 goes upward with valve 80, so that compressed air from the brake cylinder can escape through the opening 82.

As ONLY acting on valve 8 (the pressure of the brake cylinder has lowered accordingly, outweighs the pressure on the piston | 7 in the direction of closing the pressure from the main pipe and the piston 7 goes, thanks to this, down to the depicted position again and closes the valve 80, the valve 21 does not changes its openings | to the position. This completes the restoring stage | i with a further increase in pressure in the main pipeline repeats the same cycle. If, after non-slip braking, the pressure in the brake cylinder drops also known minimum tgoporshen 19 is lowered down and connects the brake cylinder to the outside air directly through the slot 53.

PRIORITY ATTENTION.

at i

A device for the stepwise release of single-chamber air brakes, depending on the pressure levels in the main air duct, equipped with a valve regulating the release of air from the brake cylinder, characterized by the use of two unrelated to each other, pistons 19 A, of which the first one has its own stem; the valve 21, and the rod 9 of the second rests I into the valve 80, the same formed in the housing: the specified device of the chamber communicates: the chamber 13 above the valve 21 - with the main air duct, the chamber above the piston 7 through the return valve a spare tank, the chamber 12 under the piston 7, with open valve 21, with chamber 13, chamber under piston 19, through channel 36 of conventional.) Air distributor .- with a torch cylinder, and at corresponding times, with the atmosphere or channel 53, or through valve 80 and ki-g measure 81.,. : ...

E patent, in-ing company Joint-stock company Take Hardy, jraiuri construction company

    7 ;;. factory.