Filtering device and corresponding vacuum adjusting device

A technology of filter device and regulator, applied in combination devices, chemical instruments and methods, separation methods, etc., can solve the problems of easy entry of dust, poor filtering effect, stuck vacuum regulator, etc., to achieve smooth flow and avoid dust Stuck and improve the effect of filtering

Active Publication Date: 2015-03-11
长城汽车股份有限公司平湖分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the filter device is mainly that after the air enters from the air inlet, it passes through a layer of filter sponge and directly communicates with the valve core of the vacuum regulator. The existing filter sponge is very thin, and its filtering effect is not good, and dust can easily enter the vacuum regulator. inside the regulator, causing the vacuum regulator to stick

Method used

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  • Filtering device and corresponding vacuum adjusting device
  • Filtering device and corresponding vacuum adjusting device
  • Filtering device and corresponding vacuum adjusting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 A filtering device 14

[0023] This embodiment provides a filtering device 14, such as Figure 1 to Figure 3 As shown, it is mounted on the vacuum regulator 12.

[0024] One end of the filter device 14 is the air inlet 1 and the other end is the connecting end 2.

[0025] The inlet end 1 is provided with an annular filter cavity 3 into which the inlet pipe 13 of the vacuum regulator 12 can be inserted. The front end of the inlet pipe 13 can be inserted into the middle of the filter cavity 3.

[0026] The connecting end 2 is combined with the housing of the vacuum regulator 12.

[0027] The filter cavity 3 is provided with an annular filter sponge 4 coaxially arranged with the air inlet pipe 13, and a vent 5 is provided on the wall surface of the filter cavity 3 below the filter sponge 4, and the vent 5 allows air to enter the filter cavity 3 Inside. Since the filter sponge 4 is located above the air vent 5, the effective filtering part of the filter sponge 4 is app...

Embodiment 2

[0033] Embodiment 2 A vacuum regulator

[0034] This embodiment provides a vacuum regulator. The filter device 14 of the first embodiment is provided on the vacuum regulator. The filter device 14 is installed on the intake pipe 13 of the vacuum regulator 12. figure 1 versus image 3 .

[0035] The structure of other parts of the vacuum regulator is completely the same as the prior art.

[0036] The vacuum regulator can work stably for a long time and avoid the jamming of dust inside.

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PUM

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Abstract

The invention discloses a filtering device. One end of the filtering device is an air inlet end and the other end of the filtering device is a connection end; the air inlet end is provided with an annular filtering cavity into which an air inlet pipe of a vacuum adjusting device is inserted; the connection end is combined with a shell of the vacuum adjusting device; the filtering cavity is internally provided with annular filtering sponge which is coaxial with the air inlet pipe; an air vent is arranged on the wall face, which is located below the filtering sponge, of the filtering cavity; a buffering cavity communicated with the air vent is arranged at the outer side of the filtering cavity; one side, which is far away from the connection end, of the buffering cavity is provided with an air inlet communicated with external atmosphere; and the connection end is provided with a bent part which enables air to flow in an opposite direction to reach the air vent. The invention further discloses the vacuum adjusting device. The filtering device disclosed by the invention is applicable to various vacuum adjusting devices and can ensure smooth air feeding of the vacuum adjusting devices for a long time so as to avoid blocking and reduce the times of maintenance.

Description

technical field [0001] The invention relates to a dust-proof filter device, in particular to a filter device for filtering air entering a vacuum regulator, and also relates to a vacuum regulator. Background technique [0002] The vacuum regulator is used in automobiles to control the opening and closing of the EGR valve. When the EGR valve is not required to work, the air spring inside the vacuum regulator will block the connecting pipeline between the vacuum regulator and the vacuum pump. At the same time, the inner cavity of the vacuum regulator It communicates with the atmosphere through the intake pipe and filter device, so that the inner chamber pressure returns to atmospheric pressure, so that the EGR valve is closed. The function of the filter device is to prevent the dust in the air from entering the inside of the vacuum regulator and prevent the vacuum regulator from being stuck. [0003] At present, the filter device is mainly that after the air enters from the ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00
Inventor 杨建成刘欢
Owner 长城汽车股份有限公司平湖分公司
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