SU45945A1 - Air distributor for automatic air brakes - Google Patents

Description

This invention relates to an air distributor for automatic air brakes, incorporating all of the conventional elements of a Westinghouse three-way valve. In the proposed air distributor, for the purpose of eidani to the fast / acting Westinghouse valve of stepped braking and inexhaustible properties, the brake cylinder communicates with the reserve reservoir for the first cwia through the valve, which overlaps during the period deceleration, the communication of the reserve tank with the main air duct, for the implementation of the second property (inexhaustibility) the communication of the reserve tank with the main air duct can occur along the channel in the nutrient valve fitted with a non-return ball valve.

The schematic h (retezhe depicts a longitudinal section of the air distributor.

To the air diffuser (the Westinghouse distributor was added a body / with a vpressovoy 1 in it, sleeve o, in which is placed the piston 3 with a brush 2 and a spool, equipped with a spring 7 with a cover 8. In the hole connecting the channel / 5 from the spare cylinder with cavity J4 of sleeve b, a valve 5 is placed, pressed against the saddle by a JO spring, the pressure which is regulated by the nipple 9.,

(233).;:

In the housing / there are a hole JS for air intake from the spare peaiepweeder under piston 3 and when the valve is actuated to the accelerator for launching HiSpea recess 21 directly into the brake cylinder, hole / 5, intended to let air into the torus of the m6 cylinder and out of it through the hole 76, and a hole / 5 for passing air from the line to the reserve tank and from the latter to the brake cylinder. The cavity 74 when the brake is released is connected to the atmosphere; when braking, there is a pressure in it that is in the brake cylinder |: e.

When charging and releasing the brake, the main piston of the triple valve moves to the left and, as usual, separates the line from the atmospheric orifice, connects the line to the spare reservoir through channel 13 in the additional part; the brake cylinder through port 15, cavity 14 and port 16 is in communication with the atmosphere; The cavity P under pressure 3 through the opening 18 and the atmospheric opening in the triple valve are connected with the atmosphere.

When braking, the main piston moves to the right, the air from the aaliacHoro tank through channel 13, the triple valve brake chamber and the opening / (enters the piston 3 and lifts it, so that the spool 4 closes the opening 16 and separates the brake cylinder with the atmosphere. After that, the piston 5 Moving further, it lifts valve 5, and air from the reserve tank flows under the valve into cavity 14, from where it passes through hole 75 into the brake cylinder before equalizing the pressure in the reserve tank and brake cylinder. the reserve tank gets an increase in pressure compared to the brake cylinder, there is a simultaneous increase in pressure under the piston 3 compared to the cavity 14 and the piston 3, pressing the valve 5, causes air to flow from the spare cylinder into the brake cylinder.

In the triple valve piston 18, a channel 19 with a diameter of 0.6 mm and an opening 2 are drilled (in which a check valve 12 is placed, which does not let out of the reserve tank back into the main line. To prevent the ball from jumping into the opening, the nipple ///. the holes are designed to maintain a constant pressure in the reserve tank during prolonged deceleration.

When the brake is released, the air flow causes the piston to still move to the release position, since the hole 19, due to the small diameter, will not have any effect.

If there are leaks in the spare tank during braking,

pressure inequality on the left and cnjjaBa piston / 5; then the air enters the channel / I lifts the ball valve 72 and gives replenishment in the reserve tank. If there are leaks in the brake cylinder, then there is an unequal pressure between the bottom and the top of the piston J, which, moving upwards, lifts the valve and gives the brake cylinder poplite from the reserve tank.

The subject matter of the invention.

Air distributor for automatic air brakes, which includes all the main elements of the Worthingauz three-way triple valve, characterized in that in order to give the Westinghouse three-way valve the stepped braking and inexhaustible properties, the brake cylinder message to the reserve tank - for the first property — occurs through a non-return valve 5, controlled by a spring piston 3, the rod of which is connected with the spool 4, which overlaps the brake message during braking a cylinder with the atmosphere, and for the implementation of the second property (inexhaustibility), the reserve tank can be connected with the main air duct during braking through channel 19 in the feed piston, equipped with a check ball valve 12.

to the author's testimony of G. A. V ntinen

No. 45945