CN201982207U - Inlet channel of direct injection gasoline engine in turbocharging cylinder - Google Patents
Inlet channel of direct injection gasoline engine in turbocharging cylinder Download PDFInfo
- Publication number
- CN201982207U CN201982207U CN2011200259287U CN201120025928U CN201982207U CN 201982207 U CN201982207 U CN 201982207U CN 2011200259287 U CN2011200259287 U CN 2011200259287U CN 201120025928 U CN201120025928 U CN 201120025928U CN 201982207 U CN201982207 U CN 201982207U
- Authority
- CN
- China
- Prior art keywords
- engine
- air flue
- direct injection
- utility
- arc transition
- 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 - Lifetime
Links
- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract 3
- 239000007921 spray Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
一种涡轮增压缸内直喷汽油发动机进气道，用于提高直喷汽油发动机系统滚流比。其构成中包括气道体和气道喉口，改进后，所述气道体外侧与气道喉口相交部分设有一圆弧过渡面，该圆弧过渡面的圆弧半径R为130-145mm。本实用新型通过合理设置进气道与气道喉口间的圆弧过渡面及进气道轮廓，减少汽油喷雾与气道壁面接触，提高燃烧效率，充分利用发动机气道流通能力，提高进气滚流比强度,使油气混合更加均匀,改善发动机燃烧状态。改进后，试验表明，本实用新型可以实现提高滚流比强度的目的，并使混合气混合更加均匀，提高发动机燃烧效率。
The utility model relates to an intake port of a direct-injection gasoline engine in a turbocharged cylinder, which is used for increasing the tumble ratio of the direct-injection gasoline engine system. Its composition includes an airway body and an airway throat. After improvement, a circular arc transition surface is provided at the intersecting part of the outside of the airway body and the airway throat. The arc radius R of the arc transition surface is 130-145mm. The utility model reduces the contact between the gasoline spray and the wall surface of the air passage by rationally setting the arc transition surface between the air inlet passage and the throat of the air passage and the contour of the air passage, improves the combustion efficiency, makes full use of the flow capacity of the air passage of the engine, and improves the air intake. The specific strength of the tumble flow makes the oil and gas mix more uniform and improves the combustion state of the engine. After the improvement, the test shows that the utility model can achieve the purpose of increasing the tumble specific strength, make the mixed gas mix more uniformly, and improve the combustion efficiency of the engine.
Description
Technical field
The utility model relates to a kind of engine components, and particularly turbosupercharging in-cylinder direct injection petrol engine air inlet belongs to technical field of automobile engine.
Background technique
Along with the continuous lifting of auto output and technical merit, the Consumer also improves the requirement of automotive performance index thereupon, and motor is as the heart of automobile, for each index of correlation of automobile provides the most direct support.At the motor that influences one of automotive performance index major reason, motor car engine air ducting system reasonable in design can improve engine combustion significantly, when the output of powerful power is provided, effectively improves the fuel economy, discharging of automobile etc.At present, direct injection spark ignition engine is a kind of advanced technology in the engine combustion technical field, and it can optimize the air inlet mixing efficiency, has brought great development potentiality with effectively power output and low pollution emission for low displacement engine.But also there are some problems in the direct injection spark ignition engine technology, as: the gasoline spraying contacts with the intake duct wall and easily forms drop inflow firing chamber, influences combustion efficiency; It is lower that stream rolls in some vehicle engine air flue system, under the low-speed running state, and the combustion gas mixing inequality, it is insufficient to burn.Therefore, air passage structure rationally is set optimizes its flow characteristics, improve and roll the stream ratio.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of higher turbosupercharging in-cylinder direct injection petrol engine air inlet that rolls the stream ratio that forms is provided.
The alleged problem of the utility model realizes with following technical proposals:
A kind of turbosupercharging in-cylinder direct injection petrol engine air inlet, comprise air flue body and air flue aditus laryngis in the formation, its specialization is: external side of described air flue and air flue aditus laryngis intersection are provided with an arc transition face, and the radius of arc R of this arc transition face is 130-145mm.
Above-mentioned turbosupercharging in-cylinder direct injection petrol engine air inlet, described air flue body is a straight-tube shape.
Above-mentioned turbosupercharging in-cylinder direct injection petrol engine air inlet, the angle α of described air flue body axis and air flue aditus laryngis axis are 35 °-40 °.
The utility model rolls stream than problem at improving the engine air flue system, has proposed a kind of petrolic intake duct structure of turbosupercharging in-cylinder direct injection that is applicable to.Described intake duct is by rationally being provided with arc transition face and the intake duct profile between intake duct and air flue aditus laryngis, can reduce the gasoline spraying contacts with the air flue wall, improve combustion efficiency, make full use of the engine air flue negotiability, improve air inlet and roll the stream specific strength, it is more even that oil gas is mixed, and effectively improves the engine combustion state.Test shows that the utility model can reach and improve the purpose of rolling the stream specific strength, and it is more even that mixed gas is mixed, and improves engine combustion efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
Each label is among the figure: 1, air flue body; 2, air flue aditus laryngis; 3, arc transition face; 4, air flue body axis; 5, aditus laryngis axis; 6, valve stem; 7. cylinder head.
Embodiment
The utility model has carried out optimal design to the petrolic intake duct of turbosupercharging in-cylinder direct injection, referring to Fig. 1, described intake duct is arranged in the cylinder head 7, its formation comprises air flue body 1 and air flue aditus laryngis 2, the air flue body is a straight-tube shape, air flue body internal surface is a smooth surface, makes the intake stroke minimum, and reduces air-flow linear loss and local losses as far as possible.Be provided with an arc transition face 3 at air flue body and air flue aditus laryngis intersection, the radius of arc R of this arc surface is 130-145mm.What this arc transition face can guarantee to form higher-strength rolls the stream ratio, and it is more even that oil gas is mixed, and effectively improves the engine combustion state.Require and structural limitations based on engine operation, air flue body axis 4 is the valve stem axis with air flue aditus laryngis axis 5() angle α be 35 °-40 °.Test shows, adopts the utility model design, can reach and improve the purpose of rolling the stream specific strength, and it is more even that mixed gas is mixed, and improves engine combustion efficiency.
Claims (3)
1. turbosupercharging in-cylinder direct injection petrol engine air inlet, it comprises air flue body (1) and air flue aditus laryngis (2), it is characterized in that: external side of described air flue and air flue aditus laryngis intersection are provided with an arc transition face (3), and the radius of arc R of this arc transition face is 130-145mm.
2. turbosupercharging in-cylinder direct injection petrol engine air inlet according to claim 1 is characterized in that: described air flue body (1) is a straight-tube shape.
3. according to claim 1 or 2 described turbosupercharging in-cylinder direct injection petrol engine air inlets, it is characterized in that: described air flue body axis (4) is 35 °-40 ° with the angle α of air flue aditus laryngis axis (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200259287U CN201982207U (en) | 2011-01-26 | 2011-01-26 | Inlet channel of direct injection gasoline engine in turbocharging cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200259287U CN201982207U (en) | 2011-01-26 | 2011-01-26 | Inlet channel of direct injection gasoline engine in turbocharging cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982207U true CN201982207U (en) | 2011-09-21 |
Family
ID=44609670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200259287U Expired - Lifetime CN201982207U (en) | 2011-01-26 | 2011-01-26 | Inlet channel of direct injection gasoline engine in turbocharging cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696868A (en) * | 2013-12-10 | 2014-04-02 | 天津大学 | Internal combustion engine cylinder cover with high eddy ratio or high tumble ratio |
| CN113944543A (en) * | 2021-08-31 | 2022-01-18 | 东风汽车集团股份有限公司 | Gasoline engine combustion system, gasoline engine assembly and vehicle |
-
2011
- 2011-01-26 CN CN2011200259287U patent/CN201982207U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696868A (en) * | 2013-12-10 | 2014-04-02 | 天津大学 | Internal combustion engine cylinder cover with high eddy ratio or high tumble ratio |
| CN103696868B (en) * | 2013-12-10 | 2016-05-25 | 天津大学 | There is high-eddy and the engine cylinder head system that rolls stream ratio |
| CN113944543A (en) * | 2021-08-31 | 2022-01-18 | 东风汽车集团股份有限公司 | Gasoline engine combustion system, gasoline engine assembly and vehicle |
| CN113944543B (en) * | 2021-08-31 | 2023-05-30 | 东风汽车集团股份有限公司 | Gasoline engine combustion system, gasoline engine assembly and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |