CN201934229U - Double-tangential air inlet passage of four-valve cylinder diesel engine - Google Patents
Double-tangential air inlet passage of four-valve cylinder diesel engine Download PDFInfo
- Publication number
- CN201934229U CN201934229U CN2010206450343U CN201020645034U CN201934229U CN 201934229 U CN201934229 U CN 201934229U CN 2010206450343 U CN2010206450343 U CN 2010206450343U CN 201020645034 U CN201020645034 U CN 201020645034U CN 201934229 U CN201934229 U CN 201934229U
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- air
- cylinder
- diesel engine
- flow
- air inlet
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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
A double-tangential air inlet passage of a four-valve cylinder diesel engine comprises air inlets, an air passage and air outlets, wherein the air passage of the air inlet passage is divided into two passages which are respectively provided with the air outlets; the air outlets are tangential to a cylinder wall; when the air suction stroke of the diesel engine starts, an inlet valve is turned on, the air flow flows into the air passage from the air inlet and is then divided into two paths, and the two paths of air flow enter a cylinder from the two air inlets according to the tangential direction of the cylinder. The air flow deviates from the center of the cylinder to enter the cylinder, so that the air flow has certain vortex moment of momentum, and the air flow in the cylinder has vorticity required by an oil supply system; meanwhile, the two paths of air flow entering the cylinder are tangential air flows, the flow resistance is small, and the flow rate is high. Due to inertial action, the air flow in the cylinder has vortex after the compression stroke of the diesel engine, the vortex is fully mixed with the sprayed fuel, and the fuel is sufficiently burnt. The novel air inlet passage meets the air inlet requirement of low swirl ratio and high air inlet of the four-valve cylinder diesel engine.
Description
Technical field
The utility model relates to a kind of four door cylinder diesel engine two inlets intake ducts.
Background technique
Current high-power diesel engine development rapidly, and the technology of Related product does not often reach requirement, most dependence on import, especially the intake duct of four-valve diesel engine motor, its air inflow and swirl rate often are difficult to satisfy the demands, and need the inlet cylinder of developing a kind of low swirl rate, big air inflow badly.
The model utility content
The utility model provides a kind of four door cylinder diesel engine two inlets intake ducts, and this kind intake duct satisfies the requirement to air inflow and swirl rate of high-power diesel engine.
For achieving the above object, by the following technical solutions:
A kind of four door cylinder diesel engine two inlets intake ducts, its composition comprises suction port, air flue, air outlet, the air flue of this kind intake duct is divided into two, an air outlet is respectively arranged, and air outlet and cylinder wall be direction tangential, when the diesel engine suction stroke begins, intake valve is opened, air-flow enters from suction port, is divided into two-way then, and the tangent direction according to cylinder enters cylinder from two valves respectively.Because of air-flow enters cylinder for departing from the cylinder center, have certain eddy current moment of momentum, make that air-flow has the required strength of vortex of oil supply system (swirl rate) in the cylinder, simultaneously, what enter cylinder because of two-way all is tangential gas flow, flow resistance is little, and flow is big.Because action of inertia, after the diesel engine compression stroke finished, air-flow still maintained eddy current in the cylinder, and it fully mixes with the fuel oil that sprays into, and makes oil inflame more abundant.The novel intake duct of this kind has satisfied the low swirl rates of four door cylinder diesel engines, the air inlet requirement of air inflow greatly.
Description of drawings
According to embodiment and accompanying drawing the utility model is described in further detail below.
Fig. 1 is a kind of four door cylinder diesel engine two inlets intake duct general structure front views described in the utility model;
Fig. 2 is the rear view of a kind of four door cylinder diesel engine two inlets intake ducts described in the utility model;
Fig. 3 is the left view of a kind of four door cylinder diesel engine two inlets intake ducts described in the utility model.
Among the figure:
1, suction port; 2, air flue; 3, air outlet; 4, cylinder wall.
Embodiment
As shown in Figures 1 to 3, provided the specific embodiment of a kind of four door cylinder diesel engine two inlets intake ducts described in the utility model, among the figure, being divided into 2, two air flues 2 of two air flues after the suction port 1 respectively has an air outlet 3, and two suction ports 3 all are direction tangential with cylinder wall 4 circumference, when the diesel engine suction stroke began, intake valve was opened, and air-flow enters air flue 2 from suction port 1, be divided into two-way then, the tangent direction according to cylinder enters cylinder from two suction ports 3 respectively.Because of air-flow enters cylinder for departing from the cylinder center, have certain eddy current moment of momentum, make that air-flow has the required strength of vortex of oil supply system (swirl rate) in the cylinder, simultaneously, what enter cylinder because of two-way all is tangential gas flow, and flow resistance is little, and flow is big.Because action of inertia, after the diesel engine compression stroke finished, air-flow still maintained eddy current in the cylinder, and it fully mixes with the fuel oil that sprays into, and makes oil inflame more abundant.The novel intake duct of this kind has satisfied the low swirl rates of four door cylinder diesel engines, the air inlet requirement of air inflow greatly.
Claims (2)
1. door cylinder diesel engine two inlets intake duct, its composition comprises suction port (1), air flue (2) and air outlet (3), it is characterized in that: air flue (2) is divided into two, and an air outlet (3) is respectively arranged.
2. a kind of four door cylinder diesel engine two inlets intake ducts according to claim 1 is characterized in that, two air outlet (3) outgassing directions and the cylinder wall circumference of described air flue (2) are direction tangential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206450343U CN201934229U (en) | 2010-12-07 | 2010-12-07 | Double-tangential air inlet passage of four-valve cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206450343U CN201934229U (en) | 2010-12-07 | 2010-12-07 | Double-tangential air inlet passage of four-valve cylinder diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934229U true CN201934229U (en) | 2011-08-17 |
Family
ID=44445748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206450343U Expired - Fee Related CN201934229U (en) | 2010-12-07 | 2010-12-07 | Double-tangential air inlet passage of four-valve cylinder diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934229U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030091A (en) * | 2013-12-19 | 2016-10-12 | 法雷奥电机控制系统公司 | Combustion engine air intake system |
| CN107269416A (en) * | 2017-07-10 | 2017-10-20 | 河南柴油机重工有限责任公司 | A kind of Design of High Pressure Common Rail Diesel Engine cylinder head |
| CN110685836A (en) * | 2019-09-06 | 2020-01-14 | 浙江吉利新能源商用车集团有限公司 | Double-tumble air inlet passage and engine |
-
2010
- 2010-12-07 CN CN2010206450343U patent/CN201934229U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030091A (en) * | 2013-12-19 | 2016-10-12 | 法雷奥电机控制系统公司 | Combustion engine air intake system |
| CN107269416A (en) * | 2017-07-10 | 2017-10-20 | 河南柴油机重工有限责任公司 | A kind of Design of High Pressure Common Rail Diesel Engine cylinder head |
| CN110685836A (en) * | 2019-09-06 | 2020-01-14 | 浙江吉利新能源商用车集团有限公司 | Double-tumble air inlet passage and engine |
| CN110685836B (en) * | 2019-09-06 | 2021-04-02 | 浙江吉利新能源商用车集团有限公司 | Double-tumble air inlet passage and engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20171207 |