CN109083771A - EGR mixer system - Google Patents
EGR mixer system Download PDFInfo
- Publication number
- CN109083771A CN109083771A CN201811173947.7A CN201811173947A CN109083771A CN 109083771 A CN109083771 A CN 109083771A CN 201811173947 A CN201811173947 A CN 201811173947A CN 109083771 A CN109083771 A CN 109083771A
- Authority
- CN
- China
- Prior art keywords
- mixer
- egr
- air inlet
- inlet tube
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
Abstract
The invention 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 present invention relates to engine arts, 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 general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of simple and reasonable EGR mixer system, which makes
Exhaust gas and fresh air energy ratio into each cylinder of engine is consistent as far as possible, and is uniformly mixed, and promotes performance and the row of engine
It puts.
To achieve the above object, the present invention provides a kind of EGR mixer systems, comprising: air inlet tube, one end with into
The connection of gas manifold, the inlet manifold are connect with each cylinder of engine；The side wall of the air inlet tube offers ejector pipe socket, institute
It states and is provided with mixer laying position on the inside of one end of air inlet tube；EGR exhaust introduces pipe, and input end is connect with exhaust pipe；Draw
Pipe is penetrated, the outlet end that the EGR exhaust introduces pipe is arranged in by one end, the other end of the ejector pipe is inserted into air inlet tube
The ejector pipe socket of side wall will introduce the upstream of air inlet tube by ejector pipe from the exhaust gas of exhaust pipe；And fan-shaped mixer,
Its mixer that the air inlet tube is arranged in lays position, and the sector mixer includes: central axis and central axial along this
Multiple blades of external radiation, the blade are 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 invention has the following beneficial effects: the EGR mixer
EGR exhaust is introduced into a kind of fan-shaped mixer by the exhaust gas that system will be introduced from exhaust pipe by ejector pipe, mixed by blade
The different angle of clutch blade setting, can be in the stream for acting on change gas by arc shaped blade by the exhaust gas of introducing and fresh air
To enabling exhaust gas constantly to carry 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 is consistent as far as possible, and is uniformly mixed, and promotes performance and the row of engine
It puts.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of EGR mixer system according to an embodiment of the present invention.
Fig. 2 is the fan-shaped mixer structure schematic diagram of EGR mixer system according to an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range 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, the specific structure of EGR mixer system according to the preferred embodiment of the present invention includes: EGR exhaust
Introduce pipe 1, ejector pipe 2, air inlet tube 3, fan-shaped mixer 4 and inlet manifold 5.The setting of ejector pipe 2 introduces pipe 1 in EGR exhaust
Outlet end, EGR exhaust introduces pipe 1 will introduce the upstream of air inlet tube 3 by ejector pipe 2 from the exhaust gas of exhaust pipe, and sector is mixed
The downstream of air inlet tube 3 is arranged in clutch 4, and EGR exhaust is introduced into fan-shaped mixer 4 by ejector pipe 2, passes through its blade
The exhaust gas of introducing and fresh air can be made to give up by the different angle of setting in the flow direction for acting on change gas by arc shaped blade
Gas can constantly carry out cross-mixing with fresh air, play being sufficiently mixed for EGR exhaust and fresh air.Cause to pass through air inlet
The exhaust gas and fresh air energy ratio of manifold 5 into each cylinder of engine are consistent as far as possible, and are uniformly mixed, and promote the performance of engine
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 aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
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 |
|---|---|---|---|
| CN201811173947.7A CN109083771A (en) | 2018-10-09 | 2018-10-09 | EGR mixer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173947.7A CN109083771A (en) | 2018-10-09 | 2018-10-09 | EGR mixer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109083771A true CN109083771A (en) | 2018-12-25 |
Family
ID=64843345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811173947.7A Pending CN109083771A (en) | 2018-10-09 | 2018-10-09 | EGR mixer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109083771A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059562A (en) * | 2022-05-25 | 2022-09-16 | 中国第一汽车股份有限公司 | EGR mixer, EGR system and control method thereof |
| US11480139B1 (en) | 2021-09-14 | 2022-10-25 | Ford Global Technologies, Llc | Exhaust gas recovery system with high-pressure mixer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230429A (en) * | 2011-04-29 | 2011-11-02 | 奇瑞汽车股份有限公司 | EGR (Exhaust Gas Recirculation) gas mixer |
| CN104005886A (en) * | 2014-06-09 | 2014-08-27 | 中国船舶重工集团公司第七一一研究所 | EGR (Exhaust Gas Recirculation) mixer for marine diesel engine |
| CN104265513A (en) * | 2014-09-22 | 2015-01-07 | 广西玉柴机器股份有限公司 | Natural gas engine egr mixing device |
| CN104870799A (en) * | 2012-12-18 | 2015-08-26 | 爱信精机株式会社 | Air intake device for internal combustion engine |
| CN105114217A (en) * | 2015-09-29 | 2015-12-02 | 安徽江淮汽车股份有限公司 | EGR waste gas mixing mechanism |
| CN106593605A (en) * | 2016-12-26 | 2017-04-26 | 重庆小康工业集团股份有限公司 | Exhaust pipe provided with mixer |
-
2018
- 2018-10-09 CN CN201811173947.7A patent/CN109083771A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230429A (en) * | 2011-04-29 | 2011-11-02 | 奇瑞汽车股份有限公司 | EGR (Exhaust Gas Recirculation) gas mixer |
| CN104870799A (en) * | 2012-12-18 | 2015-08-26 | 爱信精机株式会社 | Air intake device for internal combustion engine |
| CN104005886A (en) * | 2014-06-09 | 2014-08-27 | 中国船舶重工集团公司第七一一研究所 | EGR (Exhaust Gas Recirculation) mixer for marine diesel engine |
| CN104265513A (en) * | 2014-09-22 | 2015-01-07 | 广西玉柴机器股份有限公司 | Natural gas engine egr mixing device |
| CN105114217A (en) * | 2015-09-29 | 2015-12-02 | 安徽江淮汽车股份有限公司 | EGR waste gas mixing mechanism |
| CN106593605A (en) * | 2016-12-26 | 2017-04-26 | 重庆小康工业集团股份有限公司 | Exhaust pipe provided with mixer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11480139B1 (en) | 2021-09-14 | 2022-10-25 | Ford Global Technologies, Llc | Exhaust gas recovery system with high-pressure mixer |
| CN115059562A (en) * | 2022-05-25 | 2022-09-16 | 中国第一汽车股份有限公司 | EGR mixer, EGR system and control method thereof |
| CN115059562B (en) * | 2022-05-25 | 2024-04-12 | 中国第一汽车股份有限公司 | EGR (exhaust gas recirculation) mixer, EGR system and control method of EGR system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
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| RJ01 | Rejection of invention patent application after publication |