Three-bridge relay valve

A relay valve and valve body technology, which is applied in the field of automobile brakes, can solve the problems of poor agility of heavy vehicles and inflexibility of light brakes.

Pending Publication Date: 2018-09-11
李中辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a three-bridge relay valve to solve the problems that the existing relay valve has

Method used

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Examples

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Embodiment 1

[0032] Such asfigure 1 , figure 2 and image 3 As shown, a three-bridge relay valve proposed in this embodiment includes a valve cover 1 and a valve body 2 in a sealed connection, and the valve cover 1 is provided with a control port 11 communicating with a control air source, as figure 2 As shown, the valve body 2 is provided with an air supply port 21 communicated with the air supply source, a brake air inlet 22 communicated with the air storage cylinder, six brake air outlets 23 communicated with the brake cylinder and connected with the brake cylinder. The brake gas exhaust port 24 communicated with the outside world.

[0033] Such as figure 2 As shown, the brake air inlet 22 includes a first brake air inlet 221, a second brake air inlet 222, a third brake air inlet 223, a fourth brake air inlet 224 and a fifth brake air inlet 225. A brake gas inlet 221 is arranged on the side of the valve body 2 opposite to the air supply port 21, a second brake gas inlet 222 is ver...

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PUM

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Abstract

The invention discloses a three-bridge relay valve. The three-bridge relay valve comprises a valve cover and a valve body in tight connection with the valve cover, wherein a control hole is formed inthe valve cover, an air supply hole, a braking air inlet, six braking air outlets and a braking air exhausting hole are formed in the valve body, and a braking piston is mounted in the valve piston; abraking air cavity is communicated with the braking air outlets; a heavy braking variable-pressure adjustment valve and a light braking variable-pressure adjustment valve are arranged on one side ofthe valve body, an air inlet of the heavy braking variable-pressure adjustment valve is communicated with the braking air outlets, an air outlet of the heavy braking variable-pressure adjustment valveis communicated with an air inlet of the light braking variable-pressure adjustment valve, and an air outlet of the light braking variable-pressure adjustment valve is communicated with a buffer aircavity through a third pipeline. According to the three-bridge relay valve, the flexible and smooth braking can be realized when a vehicle is light or the road condition is simple, and the braking sensitivity is high when the vehicle is heavy or the road condition is complex, so that the three-bridge relay valve can meet the braking requirements of different loads or road conditions.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to a three-bridge relay valve. Background technique [0002] The relay valve is a part of the automobile air brake system. In the brake system of the truck, the relay valve plays the role of shortening the reaction time and pressure build-up time. The relay valve is used at the end of the long pipeline to make the storage The compressed air in the air cylinder quickly fills the brake air chamber to realize the functions of working brake, inflating the air cylinder, emergency braking and exhaust. At present, the three-bridge relay valve is widely used in the automobile braking system, especially in the It is more commonly used in the brake system of trailer or semi-trailer. [0003] Most of the three-bridge relay valves on the market are for the purpose of boosting the valve cover or the outlet of the valve body. The three-bridge relay valve is flexible and convenient to ...

Claims

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Application Information

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IPC IPC(8): B60T15/18
CPCB60T15/18
Inventor 李中辉
Owner 李中辉
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