CN204921197U - EGR waste gas blender structure - Google Patents
EGR waste gas blender structure Download PDFInfo
- Publication number
- CN204921197U CN204921197U CN201520644024.0U CN201520644024U CN204921197U CN 204921197 U CN204921197 U CN 204921197U CN 201520644024 U CN201520644024 U CN 201520644024U CN 204921197 U CN204921197 U CN 204921197U
- Authority
- CN
- China
- Prior art keywords
- egr
- air inlet
- flange
- waste gas
- blender
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses a EGR waste gas blender structure, including air inlet piping, air inlet piping's one end be the air inlet end, and the other end is the gas mixture end of giving vent to anger, and air inlet end port department is equipped with waste gas inside the communicateing interface flange that admits air, installs the EGR blender in the air inlet end, and the top of EGR blender is equipped with EGR blender flange, EGR blender flange is put into and is installed in admit air interface flange's inside of waste gas, and the EGR blender is the curve bend form, and the terminal return bend axis of this EGR blender parallels with air inlet piping's flow path axis, and the terminal end department of this EGR blender is equipped with the through -hole towards air inlet end blowout waste gas. The utility model provides the distribution homogeneity is rateed to the EGR of high each jar of engine, improves the performance of engine, reduces nitrogen oxide (NOx's) emission effectively.
Description
Technical field
The utility model relates to a kind of component of motor car engine, particularly relates to a kind of EGR exhaust mixer structure.
Background technique
Gas recirculation system (ExhaustGasRecirculation) is called for short EGR, the sub-fraction of waste gas that motor produces is sent again back to the technology that cylinder burns once again, particularly, enter cylinder again after being mixed with fresh air by the waste gas that motor is discharged, its main purpose is nitrogen oxide (NOx) discharge in order to reduce in tail gas.
Current engine EGR system off gas mixed method: outlet pipe is directly received air inlet tube by waste gas circulation pipe, waste gas in outlet pipe directly mixes with the fresh air of air inlet tube, but this scheme mixed effect is poor, do not reach ideal mixed effect, cause the EGR rate distributing uniformity of each cylinder poor, and then affect performance and the comprehensive discharge of motor.
Model utility content
The utility model, in order to solve the above-mentioned deficiency of prior art, proposes a kind of EGR exhaust mixer structure.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of EGR exhaust mixer structure, comprise air inlet tube, one end of described air inlet tube is air inlet end, the other end is mixed gas outlet side, described air inlet end port is provided with and is communicated with inner gas inlet flange, in described air inlet end, EGR mixer is installed, the top of described EGR mixer is provided with EGR mixer flange, described EGR mixer flange inserts the inside being arranged on described gas inlet flange, the curved syphon shape of described EGR mixer, the end bending axis of this EGR mixer parallels with the flow path axis of air inlet tube, and the end end of this EGR mixer is provided with towards the through hole of air inlet end ejection waste gas.
Preferably, the EGR mixer pad preventing exhaust gas leakage is installed between described gas inlet flange and EGR mixer flange.
EGR mixer of the present utility model is formed by flange and elbow pipe welding, and bend pipe front section is circular, and end portion is band cone structure, and conical surface is provided with the through hole that waste gas flows through, and the direction of through hole is vertical with FAI Fresh Air Intake direction.
EGR mixer end cone on the surface through hole has 4 row, often capable evenly distributed 4 through holes, and through-hole diameter reduces successively (12mm, 8mm, 6mm), and least significant end end face is enclosed construction, and waste gas can only flow out by through hole from the side.
After EGR mixer assembles, end cone segment axis will parallel with air inlet tube FAI Fresh Air Intake end axis, and through hole is evenly in the centre of air inlet tube.
EGR mixer and air inlet tube are by Flange joint, and by two M8 bolton, assembly technology is simple and convenient, are applicable to producing in enormous quantities.
Compared with prior art, beneficial effect of the present invention is: by increasing EGR mixer, waste gas enters fresh air inside by the through hole dispersion of EGR mixer and mixes, increase the area that waste gas mixes with fresh air, make waste gas and fresh air Homogeneous phase mixing in air inlet tube, improve the EGR rate distributing uniformity of each cylinder of motor, improve the performance of motor, effectively reduce the discharge of nitrogen oxide (NOx).
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of EGR mixer of the present utility model;
Fig. 3 is the structural representation of air inlet tube of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, model utility is described in detail.
As Fig. 1, shown in 2 and 3, the EGR exhaust mixer structure that the utility model proposes, comprise air inlet tube 1, one end of air inlet tube 1 is air inlet end 11, the other end is mixed gas outlet side 13, air inlet end 11 port is provided with and is communicated with inner gas inlet flange 12, EGR mixer 2 is installed in air inlet end 11, the top of EGR mixer 2 is provided with EGR mixer flange 22, EGR mixer flange 22 inserts the inside being arranged on gas inlet flange 12, the curved syphon shape of EGR mixer 2, the end bending axis of this EGR mixer 2 parallels with the flow path axis of air inlet tube, and the end end of this EGR mixer 2 is provided with the through hole 21 spraying waste gas towards air inlet end 11.
The EGR mixer pad preventing exhaust gas leakage is installed between gas inlet flange 12 and EGR mixer flange 22.
EGR mixer 2 is arranged on after on air inlet tube 1, through hole 21 is evenly distributed on the neutral position of air inlet tube 1, and EGR mixer bend pipe end axis parallels with air inlet tube FAI Fresh Air Intake end axis, exhaust gas flow direction contrary with fresh air flow direction (gas flow direction see Fig. 1), through hole 21 is evenly arranged in EGR mixer end, evenly distributed 4 row, often capable evenly distributed 4 through holes, through-hole diameter reduces successively, be respectively: 12mm, 8mm, 6mm, vertical with fresh air flow direction from through hole 21 exhaust gas flow direction out.
By increasing EGR mixer of the present invention, waste gas enters fresh air inside through through hole 21 dispersion and mixes, increase the area of contact of waste gas and fresh air, make waste gas fully mixing in air inlet tube 1, improve the EGR rate distributing uniformity of each cylinder of motor, improve engine performance, effectively reduce the discharge of nitrogen oxide (NOx).
Above-described embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the utility model patent and protection domain should be as the criterion with appended claims.
Claims (2)
1. an EGR exhaust mixer structure, it is characterized in that: comprise air inlet tube (1), one end of described air inlet tube (1) is air inlet end (11), the other end is mixed gas outlet side (13), described air inlet end (11) port is provided with and is communicated with inner gas inlet flange (12), in described air inlet end (11), EGR mixer (2) is installed, the top of described EGR mixer (2) is provided with EGR mixer flange (22), described EGR mixer flange (22) inserts the inside being arranged on described gas inlet flange (12), described EGR mixer (2) curved syphon shape, the end bending axis of this EGR mixer (2) parallels with the flow path axis of air inlet tube, and the end end of this EGR mixer (2) is provided with towards the through hole (21) of air inlet end (11) ejection waste gas.
2. EGR exhaust mixer structure according to claim 1, is characterized in that: be provided with the EGR mixer pad (3) preventing exhaust gas leakage between described gas inlet flange (12) and EGR mixer flange (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644024.0U CN204921197U (en) | 2015-08-25 | 2015-08-25 | EGR waste gas blender structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644024.0U CN204921197U (en) | 2015-08-25 | 2015-08-25 | EGR waste gas blender structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921197U true CN204921197U (en) | 2015-12-30 |
Family
ID=54970331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520644024.0U Expired - Fee Related CN204921197U (en) | 2015-08-25 | 2015-08-25 | EGR waste gas blender structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114216A (en) * | 2015-08-25 | 2015-12-02 | 江西五十铃发动机有限公司 | Exhaust gas mixer structure for EGR |
-
2015
- 2015-08-25 CN CN201520644024.0U patent/CN204921197U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114216A (en) * | 2015-08-25 | 2015-12-02 | 江西五十铃发动机有限公司 | Exhaust gas mixer structure for EGR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |