SU23444A1 - Air distributor for automatic air rail brakes - Google Patents

Description

The present invention relates to air distributors providing, in automatic air rail brakes, inexhaustible action, tempering speed and operation at any pressure in the air line.

The drawing depicts a longitudinal section of the air distributor. When charging brake air from the main line through the union. T enters chamber d, and from there along channel / into chamber A. Piston 5 is lifted up (according to air) under pressure of air and spring and the ground end 20 of its rod closes channel b leading to the brake cylinder. At the same time, the air in chamber d opens valve 3 and through channel 4 is sent to the reserve tank through fitting U, as well as to chamber B, and I8 last through channel 14 to chamber C, and further along channel 75, opening valve 12 to chamber D constant pressure, separated from chamber C by diaphragm 10. Equalized by equal pressure on both sides, this diaphragm does not touch valve 7 with its stem 21, and the spring is pressed to its saddle with the spring, opening the end of its shank 22 atmospheric channel 8, thus the brake becomes ready to action at what pressure The setting in chambers A, B, C, and D of the device is the same with the pressure in the line, and in chambers M, t, and P connected to the atmosphere by channels 9, Z, 8, of the atmosphere; together with this, valve 15 closes

with its spring force, and its shank 23 closes the central hole in the differential piston 16, since this piston is displaced by the spring K to the left.

At the beginning of braking with a pressure drop in the main line, the pressure in chamber A also decreases, then the pressure difference in chambers A B lowers the piston 5, and the end 20 of its rod opens the kangi 6. Air is directed from the reserve tank through fitting Y, channel 4, Chamber B, channel 6 and further through jump valve 18, will quickly flow through fitting T into the brake cylinder, at the same time filling chamber / 7. With a subsequent decrease in pressure in the reserve tank and chamber B, it will decrease in chamber C, whereas in chamber D the pressure will remain the same and deflect the diaphragm 10 towards chamber C, while the rod 21 presses valve 7, it will rise, closing its the shank 22 is the atmospheric channel 5, from which, in the subsequent braking period, the cylinder cylinder will be replenished with air from the chamber C through the channels 9, Z, through the chamber /, the valve 15 opened at the beginning of the deceleration from the pressure increase in the chamber 77, and through this last chamber . When the pressure of air passed into chamber L / from chamber C along channel I overcomes the force of spring L, and by displacing the piston 16 to the right a little, will enable the spring of valve 15 to press it

to its saddle, then the cameras t to F, |) a8, and further replenishment of the brake cylinder from the camera t stops.

It may happen that the core 20 of the piston 5 or insufficient air supply to the brake cylinder, i.e. Close channel 6 early, or transmit, i.e. will close later than necessary. In the first case, the shortage will replenish from chamber t, from which spontaneous leakage replenishes, and in the second, the excess air transferred to the brake cylinder and chamber P will push valve 15 to the left, and piston 16 to the right, and through open shank 23 This valve bore in the center of the piston 16 exit through the channel 17 atmosphere.

During braking, the increased pressure in the line, opening the valve 5, is transmitted equally to chambers A and B. The piston 5 rises by force of its spring, and the end of its rod 20 closes channel 6. The increased pressure spreads to chamber C, but until it reaches the last one in the constant pressure chamber D, the diaphragm / O continues to be raised, keeping the valve 7 open, closing the atmospheric channel 5. From chamber C, the pressurized air will pass through channels 5 and g to chambers t and M, will close the valve 15 and move the pores 16 to the right, from which the central opening of the latter will open, and the air from the brake cylinder through connection T, chamber P and through this opening will exit channel / 7 into the atmosphere. In this way a partial vacation will occur. brakes. For the same quick and complete tempering, the pressure in chamber C, and consequently in the line, must be raised higher than that in chamber D; then, the diaphragm 10, having gone down, will occupy the middle position, the valve 7 will close, opening the atmospheric channel 5, through which channel 9 will release air from chamber M. Piston 16 under the action of spring K will move to the left and hire the valve stem 15 by hiring brake cylinder through the chamber 77 and f and the channels z and S will be released into the atmosphere.

The subject matter of the invention.

Claims (2)

1. Air distributor for automatic air rail brakes, providing for the braking effect of the brake, tempering step and its operation at any line pressure, characterized in that, in order to slow down the train as quickly as possible, compressed air first decelerates from the reserve tank to the brake cylinder through channel 6 through the jump valve 18, whereas in the subsequent braking period, the brake cylinder is replenished through channel 9, z, through chamber t and valve 15, with the aim of Possible quick release compressed air from the brake cylinder is discharged through the atmospheric port 8 is opened by the valve and zakrshaemy shank 7, while the supply and partial excessive venting takes place through the atmospheric passage 17 opens and closes the shank 15 of the same valve. 2. The form of the air distributor according to claim 1, characterized in that the operation of the valve 15 is controlled by a differential piston 16, the movement of which is effected by the difference in air pressure in the brake cylinder, the reserve tank and the atmosphere.