SU941230A2 - Brake system of vehicle with pneumatic suspension - Google Patents

Description

chambers) piston rod and rodless piston cavity, connected with a bolt. a valve for disassembling the front and rear springs; brakes; contours, this device is equipped with a pressure regulating valve in one way.

beSNGGOKOVOY recessed, SOSTOYA1NPM PP VNUSKnogo klanapa installed in the track present HopHJHe, N exhaust valve seat which is formed on the servo sleeve kpnematncheskp associated with pornshem intermediate node bespltokova cavity which communicates with zadnpm brake circuit nrichem plates intake n outlet valves rigidly interconnected by a stem, which, by means of a pin, is connected to said sleeve, equipped with a release valve for working cpe.if.i from the rear brake circuit.

The drawing shows a part of the brake system of a vehicle with a newer driver, containing a brake force regulator, a section.

The brake system of a suspension-suspended vehicle contains a source of working medium, front and rear brake circuits with wheeled devices (not shown), controls for supplying compressed working medium to the specified circuits with a brake control regulator, consisting of a cut-off device and an intermediate node. The shut-off device consists of a housing 1, which, with the following pressure 2, forms a cavity 3, which through the opening 4 communicates with the front brake circuit. The piston 2, resting on the spring 5, comprises a channel 6 connecting the cavity 3 and the cavity 7, which in turn contains the piston 8 connected by a brush 9 with a valve disc 10 of the shut-off device. The valve 10 of the shut-off device divides the cavity 3 n cavity 11, communicated through the hole 12 with the rear brake circuit. The adjustment of the pressure in the cavity 7 is carried out by means of a valve assembly consisting of an inlet valve 13 installed on the piston 2, an exhaust valve 14 mounted on a follower sleeve 15 having a vent hole 16 and kinematically connected to the intermediate node, The intake and exhaust valve plates are connected by a rod 17. A pin 18 is mounted on the rod 17, which is installed with a clearance relative to the sleeve 19 by the pressure spring 20 to the end face of the follower sleeve 15. The spring 21 serves to press the exhaust valve plate 14 to the end face an ice bushing 15. The cavity And the shut-off device is communicated via a flexible tube 22, having a choke 23, with a cavity 24 of the intermediate node. The cavity 24 belongs to the end face of the piston 25, kinematically connected by a lever 26 with a follower sleeve 15. During braking, the pressure

j 1 from the front braking system through the oxygen source 4 enters cavity 3, which is: nast peremep1, enie porn 2n compression pi.Kpny 5. As a result, we will peremet ;;

 2 the valve plate of the internal valve 13 О1 plots from the surface of the piston 2 and opens up the working medium from the cavity 3 3 to the cavity 7 through the channel 6. At this, Btu / head 19 n the valve of the reconditioning valve

i- are located by springs 20 and 21 to the end face;; 1e;: of sleeve 15, which ensures (separation of cavity 7 from cavity 11 and the atmosphere). Due to the small internal volume of the cavity, the pressure in it increases without delay, and because of the small area) 1 or 2 from the side of the cavity 7, the pressure of the Miie does not affect the position of the norons 2. The increase in pressure in the cavity 7 causes the piston 8 to alternate and together with

him valve plates 10 cutoff device. At the same time, the working medium begins to flow into the cavity 11 and further through the opening 12 - into the rear brake circuit and through the tube 22 with the throttle 23 into the cavity

24. The resistance of the throttles 23 is adjusted so that the laws of change in time of the pressure in the cavity 24 and in the wheel power devices of the rear brake circuit coincide. As a result

The pressure in the cavity 24 moves the piston 25 and associated with it through the lever 26 following the sleeve 15. At a certain pressure P in the cavity 24, a change in the follower sleeve causes the channel 6 to close with the inlet valve plate 13 and the opening of the exhaust valve 14. As a result This working medium from the cavity 7 through the opening 16 is released into the atmosphere, causing snp: -;

piston 8 surface. Due to the small internal volume of cavity 7, emptying occurs instantaneously, as a result of which piston 8 and the valve 9 associated with it are rod 9

10, the cut-off device abruptly moves to its original position. This stops the access of the working medium from the cavity 3 to the cavity 11 and the pressure Pj in the wheeled power units of the rear brake circuit and in the cavity 24 is set in accordance with the pressure PI in the front brake circuit and the weight state of the transport means. When releasing the pressure P in cavity 3

decreases and the follower piston 2 under the action of the external 5 moves, carries along the rod 17 along with the plate of the inlet valve 13. At the same time, the pin 18 picks up the sleeve 19, tears it from the end face

the tracking sleeve 15 and the working medium from the cavity 11 and the rear brake circuit in communication with it through the opening 16 are released into the atmosphere, ensuring the assembly of wheel power devices and the rear brake circuit.

The effectiveness of this brake system is that the cut-off area of the cut-off device does not change during the pressure control process and the shut-off valve does not provide additional co-resistance to the flow of the working medium in the rear brake circuit, this braking system improves speed, thereby increasing the braking efficiency .facilities.

Claims (1)

Invention Formula Brake system of a vehicle with air suspension on the bus. St. No.806502, from LIch Ayush, and with the fact that, in order to increase the efficiency of braking by increasing the speed of the braking system, a chamber is formed, in which a ush section is installed, a chamber on a rod and rodless cavity, a piston connected by a rod to a valve for breaking, front and rear brake circuits, while the shut-off device is equipped with a valve stem pressure regulation unit, from the intake valve installed in the next piston, and the exhaust valve, the seat of which is made on the next sleeve, kinematically connected with the piston of the intermediate unit, the free cavity of which is communicated, to the rear brake a contour, the plates of the inlet and outlet valves are rigidly connected to each other by a rod, which is connected with a pin by means of a pin with a sleeve equipped with an operating medium discharge valve nz rear brake circuit.