CN208870712U - EGR mixer system - Google Patents
EGR mixer system Download PDFInfo
- Publication number
- CN208870712U CN208870712U CN201821635392.9U CN201821635392U CN208870712U CN 208870712 U CN208870712 U CN 208870712U CN 201821635392 U CN201821635392 U CN 201821635392U CN 208870712 U CN208870712 U CN 208870712U
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- mixer
- egr
- air inlet
- pipe
- inlet tube
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Abstract
The utility model discloses a kind of EGR mixer systems.The EGR mixer system includes: air inlet tube, and one end is connect with inlet manifold, and the inlet manifold is connect with each cylinder of engine；The side wall of the air inlet tube offers ejector pipe socket, and mixer is provided on the inside of one end of the air inlet tube and lays position；EGR exhaust introduces pipe, and input end is connect with exhaust pipe；The outlet end that the EGR exhaust introduces pipe, the ejector pipe socket of the other end insertion air inlet tube side wall of the ejector pipe is arranged in by one end in ejector pipe；And fan-shaped mixer, the mixer that the air inlet tube is arranged in lay position, the sector mixer includes: central axis and multiple blades along the central axial external radiation, which is arc.The EGR mixer system keeps exhaust gas and fresh air ratio into each cylinder of engine consistent as far as possible, and is uniformly mixed, and promotes the performance and discharge of engine.
Description
Technical field
The utility model is about engine art, especially with regard to a kind of EGR mixer system.
Background technique
The exhaust gas of engine: being usually introduced directly into engine charge air inlet tube by available engine machine egr system,
It is directly mixed with fresh air, the EGR exhaust of importing can only be mixed with fresh air by the disturbance of its air-flow, in order to reach
To relatively uniform mixed effect, usual air inlet connecting longer dimension, and mixed effect is bad, therefore influences the performance of engine.
And for there is the mixer of ejection structure, it, can be a degree of also only by the discarded body central for importeding into air inlet pipe adapter tube
Accelerating fresh air and discarded mixing, exhaust gas can not be mixed adequately within the scope of relatively short distance with fresh air,
Influence engine performance.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of simple and reasonable EGR mixer system, the EGR mixer systems
System keeps exhaust gas and fresh air ratio into each cylinder of engine consistent as far as possible, and is uniformly mixed, and promotes the performance of engine
With discharge.
To achieve the above object, the utility model provides a kind of EGR mixer system, comprising: air inlet tube, one end
It is connect with inlet manifold, the inlet manifold is connect with each cylinder of engine；The side wall of the air inlet tube offers ejector pipe and inserts
Mouthful, it is provided with mixer on the inside of one end of the air inlet tube and lays position；EGR exhaust introduces pipe, and input end and exhaust pipe connect
It connects；The outlet end that the EGR exhaust introduces pipe is arranged in by one end in ejector pipe, the other end of the ejector pipe be inserted into
The ejector pipe socket of gas adapter tube side wall will introduce the upstream of air inlet tube by ejector pipe from the exhaust gas of exhaust pipe；And it is fan-shaped
Mixer, the mixer that the air inlet tube is arranged in lay position, and the sector mixer includes: central axis and in this
For mandrel to multiple blades of external radiation, which is arc.
In a preferred embodiment, the other end of ejector pipe extend into the cental axial position of fan-shaped mixer.
In a preferred embodiment, multiple blades of fan-shaped mixer are that turn-knob is arc-shaped.
In a preferred embodiment, the blade of fan-shaped mixer is 3-10 piece.
In a preferred embodiment, the blade of fan-shaped mixer is 5.
Compared with prior art, EGR mixer system according to the present utility model has the following beneficial effects: that the EGR is mixed
EGR exhaust is introduced into a kind of fan-shaped mixer by ejector pipe, passes through leaf by the exhaust gas that clutch system will be introduced from exhaust pipe
The exhaust gas of introducing and fresh air can acted on change gas by arc shaped blade by the different angle of piece blender blade setting
Flow direction, so that exhaust gas is constantly carried out cross-mixing with fresh air, play being sufficiently mixed for EGR exhaust and fresh air.
Cause exhaust gas and fresh air energy ratio into each cylinder of engine consistent as far as possible, and be uniformly mixed, promotes the performance of engine
With discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the EGR mixer system of one embodiment of the utility model.
Fig. 2 is the fan-shaped mixer structure schematic diagram according to the EGR mixer system of one embodiment of the utility model.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1, including: EGR according to the specific structure of the EGR mixer system of the preferred embodiments of the present invention
Exhaust gas introduces pipe 1, ejector pipe 2, air inlet tube 3, fan-shaped mixer 4 and inlet manifold 5.The setting of ejector pipe 2 is introduced in EGR exhaust
The outlet end of pipe 1, EGR exhaust introduces the upstream that pipe 1 will introduce air inlet tube 3 by ejector pipe 2 from the exhaust gas of exhaust pipe, fan-shaped
The downstream of air inlet tube 3 is arranged in mixer 4, and EGR exhaust is introduced into fan-shaped mixer 4 by ejector pipe 2, passes through its leaf
The different angle of piece setting can make the exhaust gas of introducing and fresh air in the flow direction for acting on change gas by arc shaped blade
Exhaust gas can constantly carry out cross-mixing with fresh air, play being sufficiently mixed for EGR exhaust and fresh air.Cause by into
The exhaust gas and fresh air energy ratio of gas manifold 5 into each cylinder of engine are consistent as far as possible, and are uniformly mixed, and promote the property of engine
It can be with discharge.
Specifically, one end of air inlet tube 3 is connect with inlet manifold 5, and inlet manifold 5 is connect with each cylinder of engine again,
Exhaust gas and fresh gaseous mixture are introduced into each cylinder of engine by inlet manifold 5.The side wall of air inlet tube 3 offers ejector pipe and inserts
Mouthful, it is provided with mixer on the inside of one end of air inlet tube 3 and lays position.
The input end that EGR exhaust introduces pipe 1 is connect with exhaust pipe, and ejector pipe 2 is arranged by one end to be introduced in EGR exhaust
The outlet end of pipe 1, the ejector pipe socket of other end insertion 3 side wall of air inlet tube of ejector pipe 2, will be from exhaust by ejector pipe 2
The exhaust gas of pipe introduces the upstream of air inlet tube 3.
The mixer that 3 downstream of air inlet tube is arranged in fan-shaped mixer 4 lays position, is introduced EGR exhaust by ejector pipe 2
Into fan-shaped mixer 4.(arrow represents the flow direction of gas in figure) as shown in Figure 2, fan-shaped mixer 4 include: central axis and
Along multiple blades of the central axial external radiation, which is arc, the different angle being arranged by multiple blades, by introducing
Exhaust gas and fresh air can enable exhaust gas constantly to carry out with fresh air in the flow direction for acting on change gas by arc shaped blade
Cross-mixing plays being sufficiently mixed for EGR exhaust and fresh air.
Preferably, the other end of ejector pipe 2 extend into the cental axial position of fan-shaped mixer 4, so that the outlet of ejector pipe
It is centrally disposed in the center of fan-shaped mixer, to improve the mixed effect of EGR exhaust and fresh air.
Preferably, multiple blades of fan-shaped mixer are that turn-knob is arc-shaped, i.e., the bending direction of blade is mixed with sector
The central axis of device 4 is nonopiate, can pass through distortion circular arc vane effect change gas convenient for the exhaust gas and fresh air of introducing
Flow direction (as shown in Figure 2), so that exhaust gas is constantly carried out cross-mixing with fresh air.
Preferably, the blade of fan-shaped mixer is 3-10 piece.
It is introduced by EGR exhaust and manages introduced EGR exhaust, imported among the tube body of air inlet tube by ejector pipe,
Meanwhile the fresh air introduced by air inlet tube carries out first time premixing in the gas imported with ejector pipe, by premixing
Mixed gas afterwards is by arc shaped blade mixer, and under the action of arc shaped blade mixer, air-flow is anti-by arc shaped blade
Active force changes the direction of air-flow, and the gaseous mixture after premixing is caused to be introduced in different directions, non-uniform mixing
Gas is mixed by further progress, and EGR exhaust is with fresh air after being pre-mixed and disturbing and mix, and fresh air and exhaust gas are
Elementary mixing is uniform.Simultaneously as vaned guide functions, the uniform gaseous mixture gas of elementary mixing is mixed in arc shaped blade
It forms eddy flow in clutch, exhaust gas is accelerated to mix with the further of fresh air, play being sufficiently mixed for exhaust gas and fresh air.
To sum up, EGR exhaust is introduced into one by ejector pipe by the exhaust gas which will introduce from exhaust pipe
In the fan-shaped mixer of kind, the different angle being arranged by blade mixer blade can be logical by the exhaust gas of introducing and fresh air
The flow direction for crossing arc shaped blade effect change gas, enables exhaust gas constantly to carry out cross-mixing with fresh air, plays EGR exhaust
With being sufficiently mixed for fresh air.Cause exhaust gas and fresh air energy ratio into each cylinder of engine consistent as far as possible, and mixes
Uniformly, the performance and discharge of engine are promoted.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
1. a kind of EGR mixer system characterized by comprising
Air inlet tube, one end are connect with inlet manifold, and the inlet manifold is connect with each cylinder of engine；The air inlet tube
Side wall offers ejector pipe socket, and mixer is provided on the inside of one end of the air inlet tube and lays position；
EGR exhaust introduces pipe, and input end is connect with exhaust pipe；
The outlet end that the EGR exhaust introduces pipe is arranged in by one end in ejector pipe, the other end of the ejector pipe be inserted into
The ejector pipe socket of gas adapter tube side wall will introduce the upstream of air inlet tube by ejector pipe from the exhaust gas of exhaust pipe；And
Fan-shaped mixer, the mixer that the air inlet tube is arranged in lay position, the sector mixer include: central axis with
And multiple blades along the central axial external radiation, the blade are arc.
2. EGR mixer system as described in claim 1, which is characterized in that the other end of the ejector pipe extend into sector
The cental axial position of mixer.
3. EGR mixer system as described in claim 1, which is characterized in that it is described sector mixer multiple blades be
Turn-knob is arc-shaped.
4. EGR mixer system as claimed in claim 3, which is characterized in that the blade of the sector mixer is 3-10 piece.
5. EGR mixer system as claimed in claim 4, which is characterized in that the blade of the sector mixer is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635392.9U CN208870712U (en) | 2018-10-09 | 2018-10-09 | EGR mixer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635392.9U CN208870712U (en) | 2018-10-09 | 2018-10-09 | EGR mixer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870712U true CN208870712U (en) | 2019-05-17 |
Family
ID=66469644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821635392.9U Active CN208870712U (en) | 2018-10-09 | 2018-10-09 | EGR mixer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870712U (en) |
-
2018
- 2018-10-09 CN CN201821635392.9U patent/CN208870712U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right |