SU25632A1 - Air distributor for automatic air brake - Google Patents

Description

BASIC Patent No. 6410 describes an air distributor consisting of two flat spools pivotally connected by their processes with two mechanically unconnected pistons, of which one is under the action of air pressure in the main air duct on one side and air pressure in the spare tank is on the other hand, and the other is under the action of air pressure in the brake cylinder on one side and Spring pressure on the other. In the proposed air distributor, for the purpose of a more rapid operation of the brake cylinder at the beginning of the deceleration process, the cylinder, on one side, communicates with the main valve. air duct, and on the other with a spare tank, equipped with two automatically controlled valves.

The drawing schematically depicts the air distribution system.

When the pressure in the main air duct 8 decreases, the piston 7 is compressed by the action of compressed air in the reserve tank 13 and, turning the valve 5 along the remaining fixed valve 7, communicates the copper chamber 9 e with the brake cylinder chamber 13 and with the regulating cylinder chamber 13. As pressure increases in chambers 13 and 13, the piston of the regulating cylinder compresses the spring and, turning, the spool 7 along the spool 5, again separates the spool chamber and the brake cylinder. When the pressure in the main air duct is increased, the piston 1 moves in the opposite direction, turns the valve 3 in the opposite direction, and connects the chambers 13 and 13 with the outside air. As the pressure drops in chambers 13 f. 13, the piston of the regulating cylinder, paralyzed under the action of a compressed spring, turns the valve 7 in the opposite direction and again blocks the connection of the chambers J5 and 13 with the outside air.

In order to accelerate the initial action of the brake cylinder, the distribution cylinder is equipped with a valve 21, which closes the channel 24, which communicates the reservoir 12 with the chamber 11, and a valve 16, which serves as the backflow rod 78 and closes the annular channel, which communicates the cameras and 17. The valve 21 is located below the action of the spring and rests its rod into the piston rod 25 of the piston 1. The chamber 17 through the spools 5 and 7 at some of their position communicates through the channel 22 to the reservoir 23, has atmospheric pressure, and is disconnected from the spool chamber 9.

When the pressure in the main air duct decreases, the piston 2, beginning to move to the right, turns the valve 3 clockwise and communicates the chamber 17 with the reservoir 23, from which the air in the chamber 11, the valve 16, lifts the pressure quickly, and in connection with this the piston jerks moves by the length of the rod 35, after which the valve 21 closes the channel 34, and the piston moves slowly under the action of air coming from the reservoir IS into the chamber 11 only through the opening 26. Rapid movement of the piston followed by the beginning of its movement an armature onset point at which occurs soobsh; ix slide valve chamber 9 to the brake cylinder.

In its extreme right position, the piston 1 with the annular protrusion 19 abuts against the leather seal 20.

The subject matter of the invention. ,

1. An embodiment of the air distributor according to patent No. 6410, characterized in that in order to accelerate the advancement of the piston 1, a valve 16 is used to accelerate braking, opening the message of chamber i 7 when it is raised by the movement of the rod 18, which valve 16 serves simultaneously; and mainframe stock 18..,

2. The embodiment of the air distributor according to patent No. 6410, wherein in order to stop the piston 1 in the required length of its travel path on the channel, which communicates an additional reservoir J2 with the main pressure chamber L, there is applied a spring valve 1 that abuts against the end 35. stem 18 and controlled by this end of the stem by giving the end of the stem a corresponding profile.