CN202228228U - Air inlet pipe of engine - Google Patents
Air inlet pipe of engine Download PDFInfo
- Publication number
- CN202228228U CN202228228U CN2011203178826U CN201120317882U CN202228228U CN 202228228 U CN202228228 U CN 202228228U CN 2011203178826 U CN2011203178826 U CN 2011203178826U CN 201120317882 U CN201120317882 U CN 201120317882U CN 202228228 U CN202228228 U CN 202228228U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- inlet tube
- engine
- pipe
- mixer
- 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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- 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
Abstract
The utility model discloses an air inlet pipe of an engine. The air inlet pipe of the engine comprises a main air inlet pipe, an air inlet connection pipe and a mixer, wherein a fresh air inlet and an EGR (exhaust gas recirculation) waste gas inlet are respectively arranged at the air inlet end of the air inlet connection pipe; and the mixer comprises a pipe body and a plurality of helical blades, the pipe body is connected with the main air inlet pipe and the air inlet connection pipe, and the plurality of helical blades are fixed inside the pipe body and form a helical channel for air to pass through. As the mixer with the helical channel is adopted, the EGR waste gas and the fresh air in the gas inlet pipe can be mixed more uniformly before entering the engine, so that the working performance of the engine is improved.
Description
Technical field
The utility model relates to engine art, particularly a kind of engine air inlet tube.
Background technique
Along with the upgrading of automobile emission regulation, reduce the discharging of engine exhaust, the utilization ratio that improves fuel oil has become the important directions of automobile research and development, and the EGR technology is as the important means that the reduces discharged nitrous oxides motor of extensive use.
The conventional engines egr system is to satisfy waste gas to mix with the even of fresh air; Need to supply waste gas further to mix with fresh air at one section long pipeline of suction tude Front-end Design; But this kind suction tude volume is big, can cause motor can't satisfy the supporting installation of car load.
The model utility content
The technical problem that the utility model solves provides a kind of waste gas and mixed uniformly engine air inlet tube of fresh air of can making.
For achieving the above object; The utility model provides a kind of engine air inlet tube; Comprise: intake manifold, air inlet tube and mixer; The inlet end of air inlet tube is furnished with fresh air intake and EGR exhaust gas entrance respectively, and mixer comprises: connect the body and a plurality of helical blades that are fixed in the body of intake manifold and air inlet tube, a plurality of helical blades form the helical duct that supplied gas is passed through.
Further, the lead angle of helical blade is that 20 degree are to 70 degree.
Further, helical blade is four.
Further, body offers four through holes.
Further, the EGR exhaust gas entrance is opened on the sidewall of air inlet tube.
According to the technological scheme of the utility model, owing to adopted the mixer with helical duct, it is more even to make that EGR waste gas and fresh air in the suction tude mixes before the entering motor, and then has improved the service behaviour of motor.
Description of drawings
Fig. 1 is the perspective view according to the engine air inlet tube of the utility model;
Fig. 2 is the broken section structural representation according to the engine air inlet tube of the utility model;
Fig. 3 is the perspective view according to the mixer of the engine air inlet tube of the utility model;
Fig. 4 is the main TV structure schematic representation according to the mixer of the engine air inlet tube of the utility model;
Fig. 5 is the sectional structure schematic representation of the A-A direction of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.
Referring to Fig. 1 (arrow is represented airflow direction), this engine air inlet tube comprises: intake manifold 1 and air inlet tube 3, and the mixer 2 that connects intake manifold 1 and air inlet tube 3.Wherein, the inlet end of air inlet tube 3 is furnished with fresh air intake 31 and EGR exhaust gas entrance 32 respectively, and fresh air and waste gas enter in the air inlet tube 3 from two inlets respectively.Because of the temperature of two strands of air-flows of fresh air and waste gas is different, in air inlet tube 3, can produce laminar flow, when air inlet tube 3 length were not enough, fresh air can't evenly mix with waste gas.Like Fig. 3 and (arrow is represented airflow direction) shown in Figure 4; Mixer 2 comprises: the body 21 and the helical blade 22 that is fixed in this body 21 that connect intake manifold 1 and air inlet tube 3; Body 21 offers four through holes 211; This helical blade 22 is four, forms the helical duct 23 that supplied gas is passed through between each helical blade 22.Helical blade 22 lead angles of this mixer 2 can be set according to design demand.Lead angle is big more, and intake resistance is just little, and mixed effect is just poor, and lead angle is few more, and intake resistance is just big, and mixed effect is all right.Preferably, the lead angle of helical blade 22 is between 20 degree to 70 degree.
Under engine charge suction; Fresh air and waste gas enter in the air inlet tube 3 with EGR exhaust gas entrance 32 from the fresh air intake 31 of air inlet tube 3 respectively, because of the temperature of two strands of air-flows of fresh air and waste gas is different, in air inlet tube 3, can produce stratified flow to mixer 2; Then; Flow through the helical duct 23 that the formation supplied gas is passed through between each helical blade 22 and produce high speed rotating, thereby after making fresh air and waste gas evenly mixing, offer the motor acting through intake manifold 1; Make each cylinder burning of motor evenly, and reduce discharge of harmful gases.
In order to make the compact structure of engine arrangement, mixer 2 can arrange in position according to the structure needs, but must guarantee that gas flow pattern must pass through air inlet tube 3, mixer 2 and intake manifold 1 successively.
More than a disclosed specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.
Claims (5)
1. engine air inlet tube; It is characterized in that; Comprise: intake manifold, air inlet tube and mixer; The inlet end of said air inlet tube is furnished with fresh air intake and EGR exhaust gas entrance respectively, and said mixer comprises: connect the body and a plurality of helical blades that are fixed in the said body of said intake manifold and air inlet tube, a plurality of said helical blades form the helical duct that supplied gas is passed through.
2. engine air inlet tube according to claim 1 is characterized in that, the lead angle of said helical blade is that 20 degree are to 70 degree.
3. engine air inlet tube according to claim 1 is characterized in that, said helical blade is four.
4. engine air inlet tube according to claim 1 is characterized in that, said body offers four through holes.
5. according to each described engine air inlet tube in the claim 1 to 4, it is characterized in that said EGR exhaust gas entrance is opened on the sidewall of said air inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203178826U CN202228228U (en) | 2011-08-29 | 2011-08-29 | Air inlet pipe of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203178826U CN202228228U (en) | 2011-08-29 | 2011-08-29 | Air inlet pipe of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228228U true CN202228228U (en) | 2012-05-23 |
Family
ID=46078816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203178826U Expired - Fee Related CN202228228U (en) | 2011-08-29 | 2011-08-29 | Air inlet pipe of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953867A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Engine air inlet pipe |
| CN104653354A (en) * | 2014-10-23 | 2015-05-27 | 成都耐尔特科技有限公司 | EGR (exhaust gas recirculation) mixing device |
-
2011
- 2011-08-29 CN CN2011203178826U patent/CN202228228U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953867A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Engine air inlet pipe |
| CN104653354A (en) * | 2014-10-23 | 2015-05-27 | 成都耐尔特科技有限公司 | EGR (exhaust gas recirculation) mixing device |
| CN104653354B (en) * | 2014-10-23 | 2017-01-04 | 成都耐尔特科技有限公司 | EGR mixing arrangement |
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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: 20120523 Termination date: 20160829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |