CN108757245A - The gas handling system of four cylinder engine - Google Patents
The gas handling system of four cylinder engine Download PDFInfo
- Publication number
- CN108757245A CN108757245A CN201810718333.6A CN201810718333A CN108757245A CN 108757245 A CN108757245 A CN 108757245A CN 201810718333 A CN201810718333 A CN 201810718333A CN 108757245 A CN108757245 A CN 108757245A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- inlet pipe
- egr
- cylinder
- air
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
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- 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
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
Abstract
The invention discloses a kind of gas handling systems of four cylinder engine.The gas handling system of the four cylinder engine includes：Cylinder head air intake duct is four, is right hand helix air intake duct；Air inlet pipe, using hierarchical design, including：Lower layer's air inlet pipe and upper layer air inlet pipe, one end closing of lower layer's air inlet pipe, side are opened up respectively there are four air inlet pipeline joint, and respectively with the inlet communication of four cylinder head air intake ducts, one end of the upper layer air inlet pipe is connected to the other end of lower layer's air inlet pipe；The other end of the upper layer air inlet pipe is intake interface；Air inlet tube, one end are connected to the intake interface of the air inlet pipe, and the side of the air inlet tube offers EGR interfaces；And EGR branches.The air inlet pipe of the gas handling system of the four cylinder engine uses hierarchical design, EGR exhaust to enter from air inlet pipe so that the mixed path of EGR exhaust and fresh air is elongated, and mixed effect is more abundant.
Description
Technical field
The present invention relates to engine arts, especially with regard to a kind of gas handling system of four cylinder engine.
Background technology
In order to make diesel engine have lower emission effect, reach stringent emission regulation demands, diesel engine body often needs
Increase EGR (exhaust gas recycling) system.After increasing egr system, exhaust gas has to adequately be mixed with ozone,
It can be only achieved preferable reduction emission effect.
Existing technical solution has the following disadvantages：
1, four cylinder engine, structure is too compact, and air inlet pipeline length is short, it is more difficult to reach more satisfactory EGR exhaust, fresh
The mixed effect of air inlet.
2, the air inlet of the air inlet pipe of four cylinder engine is arranged at the both ends of air inlet pipe, can obtain good each cylinder air inlet
Discharge uniformity, but this structure, when progress vehicle is mating, there are the bad problems of suitability.The air inlet of same air inlet pipe
Be arranged at the middle part of air inlet pipe, vehicle suitability is preferable, but each cylinder charge flow rate uniformity but it is bad.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide a kind of gas handling system of simple and reasonable four cylinder engine, which starts
The air inlet pipe of the gas handling system of machine uses hierarchical design, EGR exhaust to enter from air inlet pipe so that EGR exhaust and fresh air
Mixed path it is elongated, mixed effect is more abundant.And the air intake duct of cylinder head use right hand helix structure, the direction of air inlet and
The airflow direction angle of air inlet pipe is obtuse angle so that the EGR exhaust of cylinder evenly, charge flow rate scattered error it is small.
To achieve the above object, the present invention provides a kind of gas handling systems of four cylinder engine, including：Cylinder head air inlet
Road is four, is right hand helix air intake duct；Air inlet pipe is arranged in the both sides of cylinder head with exhaust pipe, the air inlet
Pipe uses hierarchical design, including：Lower layer's air inlet pipe and upper layer air inlet pipe, one end closing of lower layer's air inlet pipe, side point
Do not open up there are four air inlet pipeline joint, respectively with the inlet communication of four cylinder head air intake ducts so that right hand helix air intake duct
The charge air flow angular separation of airintake direction and the air inlet pipe is obtuse angle, and the upper layer air inlet pipe is arranged in lower layer's air inlet pipe
Top, one end are connected to the other end of lower layer's air inlet pipe；The other end of the upper layer air inlet pipe is intake interface；Air inlet tube,
One end is connected to the intake interface of the air inlet pipe, and the side of the air inlet tube offers EGR interfaces；And EGR branches, packet
It includes：EGR branches air inlet pipe, EGR valve, cooler for recycled exhaust gas and EGR connecting tubes, the EGR branches air inlet pipe are connect with exhaust pipe, again
It is connected by the EGR interfaces of EGR valve, cooler for recycled exhaust gas and EGR connecting tubes and air inlet tube.
In a preferred embodiment, intake interface is laid in the centre position of the second cylinder and third cylinder.
In a preferred embodiment, the middle upper part position in the second cylinder and third cylinder is arranged in intake interface.
Compared with prior art, the gas handling system of four cylinder engine according to the present invention has the advantages that：This four
The air inlet pipe of the gas handling system of Cylinder engine uses hierarchical design, and EGR exhaust enters from air inlet pipe so that EGR exhaust and newly
The mixed path of fresh air is elongated, and mixed effect is more abundant.And the air intake duct of cylinder head uses right hand helix structure, air inlet
The airflow direction angle of direction and air inlet pipe is obtuse angle so that the EGR exhaust of cylinder evenly, charge flow rate scattered error it is small.
Description of the drawings
Fig. 1 is the structural schematic diagram of the gas handling system of four cylinder engine according to an embodiment of the present invention.
Fig. 2 is the lateral schematic cross-sectional view of the gas handling system of four cylinder engine according to an embodiment of the present invention.
Fig. 3 is longitudinal schematic cross-sectional view of the gas handling system of four cylinder engine according to an embodiment of the present invention.
Fig. 4 is the air inlet pipe sectional structure signal of the gas handling system of four cylinder engine according to an embodiment of the present invention
Figure.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield range is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 3, the concrete structure of the gas handling system of four cylinder engine according to the preferred embodiment of the present invention
Including：Air inlet pipe 1, air inlet tube 2, cylinder head air intake duct 3 and EGR branches.Wherein, air inlet pipe 1 is arranged in exhaust pipe
The exhaust gas all the way of the both sides of cylinder head, exhaust pipe enters air inlet pipe 1, cylinder head air intake duct 3 by EGR branches, air inlet tube 2.
Wherein, air inlet pipe 1 uses hierarchical design, EGR exhaust to enter from air inlet pipe so that the mixing road of EGR exhaust and fresh air
Diameter is elongated, and mixed effect is more abundant.And cylinder head air intake duct 3 uses right hand helix structure, the direction of air inlet and air inlet pipe
Airflow direction angle is obtuse angle so that the EGR exhaust of cylinder evenly, charge flow rate scattered error it is small.
Specifically, cylinder head air intake duct 3 is four, is right hand helix air intake duct, the mixing of exhaust gas and fresh air
Gas respectively enters four cylinders from four cylinder head air intake ducts and participates in burning.Exhaust gas and fresh air mixing whether fully, four
Whether the air inflow of cylinder is uniform, most important to the performance discharge of engine.
Air inlet pipe 1 is arranged in the both sides of cylinder head with exhaust pipe, as shown in figure 4, air inlet pipe 1 uses hierarchical design,
Including：Lower layer's air inlet pipe and upper layer air inlet pipe, wherein one end of lower layer's air inlet pipe is closed, side open up respectively there are four into
Air flue interface, respectively with the inlet communication of four cylinder head air intake ducts 3, and cylinder head air intake duct 3 be right hand helix air intake duct,
The charge air flow angular separation of airintake direction and air inlet pipe 1 is obtuse angle, this makes, and the intake resistance of entire cylinder head is small, cyclone effect
Fruit is good.Upper layer air inlet pipe is arranged in the top of lower layer's air inlet pipe, and one end is connected to the other end of lower layer's air inlet pipe.Upper layer air inlet pipe
The other end be intake interface, for being connect with air inlet tube 2.
Preferably, intake interface is laid in the centre position of the second cylinder and third cylinder.
Preferably, the middle upper part position in the second cylinder and third cylinder is arranged in intake interface, facilitates and carries out to all kinds of
The mating arrangement of vehicle；Hierarchical design is used inside air inlet pipe, realizes the effect that air-flow enters from rear end, and EGR is useless
Gas mixing is abundant, the charge flow rate uniformity scattered error of four cylinders is small.
One end of air inlet tube 2 is connected to the intake interface of air inlet pipe 1, and the side of the air inlet tube 2 offers EGR and connects
Mouthful.
EGR branches include：EGR branches air inlet pipe 4, EGR valve 5, cooler for recycled exhaust gas 6 and EGR connecting tubes 7, EGR branch air inlets
Pipe 4 is connect with exhaust pipe, is connect, is made with the EGR interfaces of air inlet tube 2 further through EGR valve 5, cooler for recycled exhaust gas 6 and EGR connecting tubes
The exhaust gas for obtaining fresh air and coming from exhaust pipe, starts to converge at air inlet tube, due to being layered inside air inlet pipe
Design, the path of air inlet is longer, and fresh air and exhaust gas can be made adequately to be mixed before entering cylinder-head port.
As it can be seen that the air inlet pipe of the gas handling system of the four cylinder engine use hierarchical design, EGR exhaust from air inlet pipe into
Enter so that the mixed path of EGR exhaust and fresh air is elongated, and mixed effect is more abundant.The gas handling system of the four cylinder engine
Cylinder head 4 air intake ducts use right hand helix structure, the direction of air inlet and the airflow direction angle of air inlet pipe are obtuse angle, are made
4 cylinders EGR exhaust evenly, charge flow rate scattered error it is small.Machine shape is more attractive.
To sum up, the air inlet pipe of the gas handling system of the four cylinder engine use hierarchical design, EGR exhaust from air inlet pipe into
Enter so that the mixed path of EGR exhaust and fresh air is elongated, and mixed effect is more abundant.And the air intake duct of cylinder head uses
Right hand helix structure, the direction of air inlet and the airflow direction angle of air inlet pipe are obtuse angle so that the EGR exhaust of cylinder evenly,
Charge flow rate scattered error is small.
The description of the aforementioned specific exemplary embodiment to the present 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 the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (3)
1. a kind of gas handling system of four cylinder engine, which is characterized in that including：
Cylinder head air intake duct is four, is right hand helix air intake duct；
Air inlet pipe is arranged in the both sides of cylinder head with exhaust pipe, which uses hierarchical design, including：Lower layer into
Tracheae and upper layer air inlet pipe, one end closing of lower layer's air inlet pipe, side opens up respectively there are four air inlet pipeline joint, distinguishes
With the inlet communication of four cylinder head air intake ducts so that the air inlet gas of the airintake direction of right hand helix air intake duct and the air inlet pipe
Stream angular separation is obtuse angle, and the upper layer air inlet pipe is arranged in the top of lower layer's air inlet pipe, and one end is another with lower layer air inlet pipe
End connection；The other end of the upper layer air inlet pipe is intake interface；
Air inlet tube, one end are connected to the intake interface of the air inlet pipe, and the side of the air inlet tube offers EGR interfaces；
And
EGR branches, including：EGR branches air inlet pipe, EGR valve, cooler for recycled exhaust gas and EGR connecting tubes, the EGR branches air inlet pipe with
Exhaust pipe connects, and is connected further through the EGR interfaces of EGR valve, cooler for recycled exhaust gas and EGR connecting tubes and air inlet tube.
2. the gas handling system of four cylinder engine as described in claim 1, which is characterized in that the intake interface is laid in second
The centre position of cylinder and third cylinder.
3. the gas handling system of four cylinder engine as claimed in claim 2, which is characterized in that the intake interface is arranged second
The middle upper part position of cylinder and third cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718333.6A CN108757245A (en) | 2018-07-03 | 2018-07-03 | The gas handling system of four cylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718333.6A CN108757245A (en) | 2018-07-03 | 2018-07-03 | The gas handling system of four cylinder engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757245A true CN108757245A (en) | 2018-11-06 |
Family
ID=63975961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810718333.6A Pending CN108757245A (en) | 2018-07-03 | 2018-07-03 | The gas handling system of four cylinder engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN108757245A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486332A (en) * | 2019-07-18 | 2019-11-22 | 浙江福锐特电力科技有限公司 | Generator noise silencer |
Citations (7)
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|---|---|---|---|---|
| US20010025632A1 (en) * | 2000-02-02 | 2001-10-04 | Herbert Pietrowski | Intake manifold with integrated exhaust gas recirculation system |
| CN101858281A (en) * | 2010-04-09 | 2010-10-13 | 谢国华 | Air inlet sectioning device for internal combustion engine |
| CN201851238U (en) * | 2010-11-19 | 2011-06-01 | 安徽江淮汽车股份有限公司 | Aluminum induction manifold for 2.0L gasoline engine |
| CN102410089A (en) * | 2010-09-20 | 2012-04-11 | 广西玉柴机器股份有限公司 | Light diesel engine EGR (Exhaust Gas Recycle) intake control system |
| CN103670833A (en) * | 2013-12-11 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Air intake manifold of diesel engine |
| JP2017044192A (en) * | 2015-08-28 | 2017-03-02 | いすゞ自動車株式会社 | Intake structure of internal combustion engine |
| CN208364268U (en) * | 2018-07-03 | 2019-01-11 | 广西玉柴机器股份有限公司 | The gas handling system of four cylinder engine |
-
2018
- 2018-07-03 CN CN201810718333.6A patent/CN108757245A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010025632A1 (en) * | 2000-02-02 | 2001-10-04 | Herbert Pietrowski | Intake manifold with integrated exhaust gas recirculation system |
| CN101858281A (en) * | 2010-04-09 | 2010-10-13 | 谢国华 | Air inlet sectioning device for internal combustion engine |
| CN102410089A (en) * | 2010-09-20 | 2012-04-11 | 广西玉柴机器股份有限公司 | Light diesel engine EGR (Exhaust Gas Recycle) intake control system |
| CN201851238U (en) * | 2010-11-19 | 2011-06-01 | 安徽江淮汽车股份有限公司 | Aluminum induction manifold for 2.0L gasoline engine |
| CN103670833A (en) * | 2013-12-11 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Air intake manifold of diesel engine |
| JP2017044192A (en) * | 2015-08-28 | 2017-03-02 | いすゞ自動車株式会社 | Intake structure of internal combustion engine |
| CN208364268U (en) * | 2018-07-03 | 2019-01-11 | 广西玉柴机器股份有限公司 | The gas handling system of four cylinder engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486332A (en) * | 2019-07-18 | 2019-11-22 | 浙江福锐特电力科技有限公司 | Generator noise silencer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
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| RJ01 | Rejection of invention patent application after publication |