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Large-flow adjustable double-ahead proportional relay valve

A proportional relay valve, large flow technology, applied in the field of auto parts, can solve the problem of not very good braking force, and achieve the effect of stable operation, variable volume and small volume

Pending Publication Date: 2022-04-05
RUILI GROUP RUIAN AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patent document achieves the braking effect of lightly stepping on the light brake and heavy stepping on the heavy brake by setting a three-stage piston and a pressure regulating structure. When the engineering vehicle is braking, it is necessary to further improve the force sensitivity of the relay valve when the brake is lightly applied

Method used

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  • Large-flow adjustable double-ahead proportional relay valve
  • Large-flow adjustable double-ahead proportional relay valve
  • Large-flow adjustable double-ahead proportional relay valve

Examples

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Embodiment 1

[0028] Such as Figure 1-3As shown, the present embodiment discloses a large flow rateable double front proportional relay valve, wherein figure 1 It is a cross-sectional view of the relay valve, which is not obtained in a cross-sectional cross-sectional cross-sectional combination, which is generally divided into E, F and G, E is the pressure regulating unit part. , F and g are part of the relay valve body. figure 2 The dashed line is divided into two partial cross-sectional.

[0029] The large flow rateable double front proportional relay valve disclosed in this example includes a housing including a sealing-connected upper casing 1 and a lower housing 2, which is achieved by the eighth seal 49, as for The installation of the eighth seal 49 can be implemented using a mounting slot; the upper housing 1 and the lower casing 2 are combined, form a piston cavity 3, and a piston is provided in the piston cavity 3. And other components cooperated with the piston; the upper housing 1 fo...

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PUM

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Abstract

According to the high-flow adjustable double-ahead proportional relay valve, a piston structure is redesigned, so that a front cavity structure is reformed, and particularly, the reverse force application area of gas in a front cavity to a piston, especially a piston pressure plate, is reduced; the starting edge of the front cavity is changed from the inner cavity wall of the piston to the first annular structure moving towards the axis in the radial direction, so that the front output proportion is increased, braking is correspondingly faster, the braking response time is shortened, and the braking speed is increased on the basis of light treading and light braking.

Description

Technical field [0001] The present invention relates to the field of automotive parts, and more particularly to a large flow rateable double-proportional relay valve. Background technique [0002] The relay valve is part of the automobile air brake system, which is attached to the gas tube, and the air outlet is connected to the brake chamber. When the pedal is pressed, the output air pressure of the brake valve acts as the control pressure input of the relay valve. Under the control pressure, the gas valve is pushed away, so that the compressed air has a gas cylinder directly into the brake gas through the air. The chamber is not used through the brake valve, which greatly shortens the inflatable line of the brake chamber, and accelerates the restart process of the air chamber. For example, Chinese literature CN102481919A discloses a relay valve device, and then, for example, the Chinese Patent Document CN207510415U discloses an emergency vehicle with pressure regulating functio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T15/18
Inventor 金荣信谭小艳蒋伟荣戴家豪黄益会
Owner RUILI GROUP RUIAN AUTO PARTS CO LTD
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