CN209195568U - A kind of inlet structure, engine and automobile - Google Patents
A kind of inlet structure, engine and automobile Download PDFInfo
- Publication number
- CN209195568U CN209195568U CN201822249890.6U CN201822249890U CN209195568U CN 209195568 U CN209195568 U CN 209195568U CN 201822249890 U CN201822249890 U CN 201822249890U CN 209195568 U CN209195568 U CN 209195568U
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- CN
- China
- Prior art keywords
- intake duct
- air intake
- air flue
- air
- aditus laryngis
- Prior art date
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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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of inlet structures, including air intake duct, one end of the air intake duct is entrance, the other end is air flue aditus laryngis, it is equipped with valve guide bushing close to the top of air flue aditus laryngis in air intake duct, the inlet valve being connected to air intake duct is equipped in valve guide bushing, the air intake duct is from entrance to the diminishing structure in the cross section of air flue aditus laryngis, it is bigger to reduce amplitude closer to air flue aditus laryngis for cross section；Along being in rectangle on the cross section of its entrance, lower edge is in the arc-shaped of indent.It can be under the premise of guaranteeing high Tumble intensity, so that discharge coefficient is not greatly lowered.The invention also discloses a kind of engine and automobiles.
Description
Technical field
The utility model relates to petrol engines, and in particular to a kind of inlet structure, engine and automobile.
Background technique
As emission regulation and the further of fuel economy regulation add sternly, for petrol engine, the thermal efficiency is promoted
Just it is particularly important, and it is mostly important to improve burning in numerous measures.Outstanding engine inlets design can be obvious
Improvement burning, achieve the purpose that reduce oil consumption and discharge.In the design of air intake duct, the parameter that usually we pay close attention to is tumble flow
Intensity and discharge coefficient, but the two parameters are often contradictory.In current most of air intake duct schemes, in order to keep flat
Weighing apparatus, Tumble intensity and discharge coefficient be not optimal level, this results in some with greater need for high Tumble intensity air intake duct
The purpose for improving oil consumption and discharge is not achieved in engine.
Summary of the invention
The purpose of the utility model is to provide a kind of inlet structure, engine and automobiles, can guarantee high tumble flow
Under the premise of intensity, so that discharge coefficient is not greatly lowered.
One end of inlet structure described in the utility model, including air intake duct, the air intake duct is entrance, and the other end is
Air flue aditus laryngis is equipped with valve guide bushing close to the top of air flue aditus laryngis in air intake duct, is equipped in valve guide bushing and is connected to air intake duct
Inlet valve, the air intake duct are from entrance to the diminishing structure in the cross section of air flue aditus laryngis, and cross section is closer to air flue larynx
Mouthful, it is bigger to reduce amplitude；Along being in rectangle on the cross section of its entrance, lower edge is in the arc-shaped of indent.
Further, fish belly shape transition face is equipped with the junction of air flue aditus laryngis on the downside of the air intake duct.
Further, the air intake duct is straight air flue, and air flue inclination angle is 33 ± 10 °, air inlet passage center line and air flue aditus laryngis
The tumble flow angle of axis is 31 ± 15 °.
Further, the equivalent diameter of the air flue aditus laryngis be 9 ~ 12mm, the flange face of the inlet of the air intake duct etc.
Effect diameter is 17 ~ 19mm.
Further, the area that the circular arc of the indent is surrounded is the half of the entrance section area of air intake duct.
A kind of engine, the engine include above-mentioned inlet structure.
A kind of automobile, the automobile include above-mentioned engine.
The cross section lower edge of the inlet mouth of the utility model is the arc-shaped of indent, and air inlet passage center line is from air intake duct
Side projection see it is essentially straight, air intake duct inner surface be smooth surface, air intake duct from entrance to the cross section of air flue aditus laryngis by
Tapered small, and closer to air flue aditus laryngis, it is bigger to reduce amplitude, therefore gas linear loss is lower and local losses increases, flow
Coefficient has certain reduction.By the area for being surrounded the circular arc of indent be set as entrance section area two/
One, so that the gas into air intake duct is accelerated, air-flow enters after air intake duct the water conservancy diversion for passing through fish belly shape transition face, along air inlet
After the other side in road is again speeded up by air flue aditus laryngis, enter cylinder close to exhaust combustion chamber side plane, formed in cylinder compared with
High Tumble intensity.
By simulation calculation typical condition tubulence energy, compared with existing inlet structure, amplitude is promoted between 13 ~ 50%,
High lift discharge coefficient reduces by 10%.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic cross-section of the utility model entrance.
In figure, 1-air intake duct, 2-entrances, 21-lower edges, 22-upper edges, 3-air flue aditus laryngis, 4-valve guide bushings, 5-
Fish belly shape transition face, 6-cylinder caps, 7-cylinders；
α-air flue inclination angle, β-tumble flow angle, Td-air flue aditus laryngis equivalent diameter, FA-inlet flange face are equivalent straight
Diameter, a-air inlet passage center line, b-air flue aditus laryngis axis, the area that S1-indent circular arc is surrounded, S2-entrance are cut
Face area.
Specific embodiment
It elaborates with reference to the accompanying drawing to the utility model.
Referring to Fig. 1, shown in inlet structure, including air intake duct 1, one end of the air intake duct 1 are entrance 2, the other end
For air flue aditus laryngis 3, air flue aditus laryngis 3 is connect with cylinder cap 6, on the fixed cylinder 7 of cylinder cap 6, in air intake duct 1 close to the upper of air flue aditus laryngis 3
Side is equipped with valve guide bushing 4, and the inlet valve being connected to air intake duct 1 is equipped in valve guide bushing 4, and the air intake duct 1 is from entrance 2 to gas
The diminishing structure in the cross section of road aditus laryngis 3, it is bigger to reduce amplitude closer to air flue aditus laryngis 3 for cross section, therefore enters air inlet
The gas linear loss in road is lower and local losses increases, and discharge coefficient has certain reduction.Referring to fig. 2, the air intake duct 1
Entrance cross-section on along 22 be in rectangle, along 21 in the arc-shaped of indent under entrance cross-section.
1 downside of air intake duct and the junction of air flue aditus laryngis 3 are equipped with fish belly shape transition face 5, which rises
To guide functions, so that air-flow enters after air intake duct 1 water conservancy diversion for passing through fish belly shape transition face 5, it is logical along the other side of air intake duct 1
Cross the acceleration of air flue aditus laryngis 3.
The air intake duct 1 is straight air flue, and air flue inclination alpha is 33 ± 10 °, and air flue inclination alpha is air inlet passage center line a and water
The tumble flow angle beta of angle between plane, air inlet passage center line a and air flue aditus laryngis axis b are 31 ± 15 °, air flue inclination alpha and tumble flow
Angle beta can be selected according to specific works demand.
The equivalent diameter Td of the air flue aditus laryngis is 9 ~ 12mm, the equivalent diameter of the inlet flange face of the air intake duct 1
FA is 17 ~ 19mm.Referring to fig. 2, the area S1 that the circular arc of the indent is surrounded is the entrance section area S2's of air intake duct
Half, it should be noted that the area S1 that the circular arc of indent is surrounded refers to the arc section and horizontal segment of indent
The area of encirclement, horizontal segment are auxiliary segment, and both ends are connected with the both ends of arc section respectively.
Particular determination is carried out by 3 cross sectional shape of entrance to air intake duct 1, and to air flue inclination alpha, tumble flow angle beta, air flue
The equivalent diameter Td of aditus laryngis and the equivalent diameter FA of inlet flange face are rationally arranged, so that into the gas of air intake duct 1
Accelerated, air-flow enters after air intake duct 1 water conservancy diversion for passing through fish belly shape transition face 5, passes through air flue larynx along the other side of air intake duct 1
After mouth 3 is again speeded up, enters cylinder 7 close to exhaust combustion chamber side plane, form higher Tumble intensity in cylinder.
A kind of engine, the engine include above-mentioned inlet structure.
A kind of automobile, the automobile include above-mentioned engine.
Claims (7)
1. one end of a kind of inlet structure, including air intake duct (1), the air intake duct (1) is entrance (2), the other end is air flue
Aditus laryngis (3) is equipped with valve guide bushing (4) close to the top of air flue aditus laryngis (3) in air intake duct (1), be equipped in valve guide bushing (4) with into
The inlet valve of air flue (1) connection, it is characterised in that: the air intake duct (1) is the cross section from entrance (2) to air flue aditus laryngis (3)
It is bigger to reduce amplitude closer to air flue aditus laryngis (3) for diminishing structure, cross section；It is in along (22) on the cross section of entrance (2)
Rectangle, lower edge (22) are arc-shaped in indent.
2. inlet structure according to claim 1, it is characterised in that: air intake duct (1) downside and air flue aditus laryngis (3)
Junction be equipped with fish belly shape transition face (5).
3. inlet structure according to claim 1 or 2, it is characterised in that: the air intake duct (1) is straight air flue, gas
Road inclination α is 33 ± 10 °, and the tumble flow angle beta of air inlet passage center line a and air flue aditus laryngis axis b are 31 ± 15 °.
4. inlet structure according to claim 1 or 2, it is characterised in that: the equivalent diameter Td of the air flue aditus laryngis is 9
~ 12mm, the equivalent diameter FA of the flange face of the inlet of the air intake duct are 17 ~ 19mm.
5. inlet structure according to claim 1 or 2, it is characterised in that: the area that the circular arc of the indent is surrounded
S1 is the half of the entrance section area S2 of air intake duct.
6. a kind of engine, it is characterised in that: the engine includes the described in any item inlet structures of claim 1 ~ 5.
7. a kind of automobile, it is characterised in that: the automobile includes engine as claimed in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249890.6U CN209195568U (en) | 2018-12-29 | 2018-12-29 | A kind of inlet structure, engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249890.6U CN209195568U (en) | 2018-12-29 | 2018-12-29 | A kind of inlet structure, engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195568U true CN209195568U (en) | 2019-08-02 |
Family
ID=67430880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822249890.6U Active CN209195568U (en) | 2018-12-29 | 2018-12-29 | A kind of inlet structure, engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287860A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Weak tumble fast combustion system and gas engine |
| CN111379649A (en) * | 2020-03-23 | 2020-07-07 | 重庆长安汽车股份有限公司 | Intake duct applied to high-compression-ratio direct-injection self-priming internal combustion engine |
-
2018
- 2018-12-29 CN CN201822249890.6U patent/CN209195568U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379649A (en) * | 2020-03-23 | 2020-07-07 | 重庆长安汽车股份有限公司 | Intake duct applied to high-compression-ratio direct-injection self-priming internal combustion engine |
| CN111287860A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Weak tumble fast combustion system and gas engine |
| CN111287860B (en) * | 2020-05-13 | 2020-09-29 | 潍柴动力股份有限公司 | Weak tumble fast combustion system and gas engine |
| US11149680B1 (en) | 2020-05-13 | 2021-10-19 | Weichai Power Co., Ltd. | Weak tumble flow fast combustion system and gas engine |
| RU2762929C1 (en) * | 2020-05-13 | 2021-12-23 | Вэйчай Пауэр Ко., Лтд. | Rapid combustion system with weak vertical vortex flow |
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