CN106884733A - Air inlet guide frame of the air intake duct in cylinder cover bottom surface - Google Patents
Air inlet guide frame of the air intake duct in cylinder cover bottom surface Download PDFInfo
- Publication number
- CN106884733A CN106884733A CN201710245058.6A CN201710245058A CN106884733A CN 106884733 A CN106884733 A CN 106884733A CN 201710245058 A CN201710245058 A CN 201710245058A CN 106884733 A CN106884733 A CN 106884733A
- Authority
- CN
- China
- Prior art keywords
- intake duct
- air intake
- cylinder
- cylinder head
- 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
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to apparatus of the internal-combustion engine technical field, it is related to a kind of air inlet guide frame for air intake duct, including cylinder head, the cylinder head bottom surface connects air intake duct, the entry position that cylinder head bottom surface corresponds to air intake duct is provided with guiding groove, is oriented to groove consistent with the spiral vortex direction of air intake duct.Product structure of the present invention is simple, reasonable, carries out specific aim improvement by the shortcoming for existing cylinder head so that the vortex in cylinder is improved, it is ensured that the mixing of fresh air and fuel is just more fully and uniform in cylinder；Tumble flow in cylinder is improved, then cylinder flame spread speed can be accelerated, and the efficiency of combustion of engine can be higher, and exhaust emissions can be cleaned more.
Description
Technical field
The invention belongs to apparatus of the internal-combustion engine technical field, it is related to a kind of air inlet for air intake duct in cylinder cover bottom surface to be oriented to knot
Structure.
Background technology
At present, known air intake duct, in the chamfering of cylinder cover bottom surface, is all the periphery chamfering of rule, this chamfer machining
Convenient, anufacturability is good；Have the disadvantage：During inlet valve is gradually opened, the gap between inlet valve and chamfering is equal
Even, it is also more uniform from inlet valve periphery into the air-flow of cylinder, it is more difficult to form consistent gas flowing；There is multiple
In the case of inlet valve, the point of multiple so uniform air inlets in valve periphery is just had, be more difficult to form the big whirlpool for expecting to reach
Stream flowing gas state.
The content of the invention
The present invention regarding to the issue above, there is provided a kind of air intake duct cylinder cover bottom surface air inlet guide frame, the guide frame
Can effectively guide charge air flow to form consistent mobility, so as to increase the vortex in cylinder and tumble flow, accelerate in cylinder
Burning velocity.
According to technical scheme：A kind of air inlet guide frame of air intake duct in cylinder cover bottom surface, it is characterised in that：Bag
Cylinder head is included, the cylinder head bottom surface connects air intake duct, and it is recessed that cylinder head bottom surface is provided with guiding corresponding to the entry position of air intake duct
Groove, is oriented to groove consistent with the spiral vortex direction of air intake duct.
As a further improvement on the present invention, the guiding groove is in crescent, be oriented to the depth of groove middle part to
Successively decrease successively both sides.
As a further improvement on the present invention, the air intake duct is provided with circular arc chamfering with the junction of cylinder head.
As a further improvement on the present invention, the end of air intake duct forms inlet valve with the junction of cylinder head.
As a further improvement on the present invention, the air intake duct has two.
The technical effects of the invention are that：Product structure of the present invention is simple, reasonable, by the shortcoming for existing cylinder head
Carry out specific aim improvement so that the vortex in cylinder is improved, it is ensured that fresh air and fuel is mixed in cylinder
Close just more fully and uniform；Tumble flow in cylinder is improved, then cylinder flame spread speed can be accelerated, the burning of engine
Efficiency can be higher, and exhaust emissions can be cleaned more.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the connection diagram of air intake duct and guiding groove in the present invention.
Specific embodiment
Specific embodiment of the invention is further described below in conjunction with the accompanying drawings.
In Fig. 1,2, including cylinder head 1, inlet valve 2, guiding groove 3, air intake duct 4, circular arc chamfering 5 etc..
As shown in Figure 1, 2, the present invention is a kind of air inlet guide frame of air intake duct in cylinder cover bottom surface, including cylinder head 1, institute
The bottom surface of cylinder head 1 connection air intake duct 4 is stated, the entry position that the bottom surface of cylinder head 1 corresponds to air intake duct 4 is provided with guiding groove 3, is oriented to
Groove 3 is consistent with the spiral vortex direction of air intake duct 4.
It is in crescent to be oriented to groove 3, and the depth for being oriented to the middle part of groove 3 is successively decreased successively to both sides.
Air intake duct 4 is provided with circular arc chamfering 5 with the junction of cylinder head 1.
The end of air intake duct 4 forms inlet valve 2 with the junction of cylinder head 1.
Air intake duct 4 has two.
3 pairs of air-flows for entering cylinder of groove are oriented to shunting and guide effect, guide direction and air inlet in the present invention
The hand of spiral in road 4 is identical.Operationally, when engine is run to inlet valve 2 to be opened, the air-flow into cylinder is recessed in guiding
There is shunting at groove 3, shunting is flowed along the direction for being oriented to the setting of groove 3, and consistent with the spiral vortex direction of air intake duct 4, has
Effect increases vortex and tumble flow in cylinder, and the gas promoted in cylinder rolls mixing, accelerates in-cylinder combustion speed, improves hair
The dynamic property and economy of motivation.
Claims (5)
1. air inlet guide frame of a kind of air intake duct in cylinder cover bottom surface, it is characterised in that：Including cylinder head（1）, the cylinder head
（1）Bottom surface connects air intake duct（4）, cylinder head（1）Bottom surface corresponds to air intake duct（4）Entry position be provided with guiding groove（3）, lead
To groove（3）With air intake duct（4）Spiral vortex direction it is consistent.
2. air inlet guide frame of the air intake duct as claimed in claim 1 in cylinder cover bottom surface, it is characterised in that：The guiding groove
（3）In crescent, groove is oriented to（3）The depth of middle part is successively decreased successively to both sides.
3. air inlet guide frame of the air intake duct as claimed in claim 1 in cylinder cover bottom surface, it is characterised in that：The air intake duct
（4）With cylinder head（1）Junction be provided with circular arc chamfering（5）.
4. air inlet guide frame of the air intake duct as claimed in claim 1 in cylinder cover bottom surface, it is characterised in that：Air intake duct（4）'s
End and cylinder head（1）Junction formed inlet valve（2）.
5. air inlet guide frame of the air intake duct as claimed in claim 1 in cylinder cover bottom surface, it is characterised in that：The air intake duct
（4）There are two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245058.6A CN106884733A (en) | 2017-04-14 | 2017-04-14 | Air inlet guide frame of the air intake duct in cylinder cover bottom surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245058.6A CN106884733A (en) | 2017-04-14 | 2017-04-14 | Air inlet guide frame of the air intake duct in cylinder cover bottom surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106884733A true CN106884733A (en) | 2017-06-23 |
Family
ID=59183830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710245058.6A Pending CN106884733A (en) | 2017-04-14 | 2017-04-14 | Air inlet guide frame of the air intake duct in cylinder cover bottom surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884733A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620633A (en) * | 2017-09-08 | 2018-01-23 | 宁波市鄞州德来特技术有限公司 | Methanol engine |
| CN108035814A (en) * | 2017-11-27 | 2018-05-15 | 天津大学 | A kind of turbulence control method for fast press |
| CN108590899A (en) * | 2018-06-19 | 2018-09-28 | 天津大学 | A kind of shunting guide type air inlet path for diesel engine |
| CN111140342A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Gas engine combustion system and gas engine with same |
| CN111287862A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
| CN111287863A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201236749Y (en) * | 2008-06-30 | 2009-05-13 | 奇瑞汽车股份有限公司 | Air inlet flue of engine cylinder cap |
| CN201588702U (en) * | 2009-12-16 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Air duct of automobile engine |
| CN201916044U (en) * | 2010-12-27 | 2011-08-03 | 东风汽车公司 | Structure for improving air-inflowing rolling effect of petrol engine |
| CN202811106U (en) * | 2012-09-29 | 2013-03-20 | 长城汽车股份有限公司 | Air inlet mechanism of diesel motor |
| CN202883180U (en) * | 2012-10-28 | 2013-04-17 | 长城汽车股份有限公司 | Air inlet structure of supercharged engine |
| CN105673248A (en) * | 2016-01-25 | 2016-06-15 | 重庆长安汽车股份有限公司 | High-tumble ratio air inlet channel of cylinder head of gasoline engine |
-
2017
- 2017-04-14 CN CN201710245058.6A patent/CN106884733A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201236749Y (en) * | 2008-06-30 | 2009-05-13 | 奇瑞汽车股份有限公司 | Air inlet flue of engine cylinder cap |
| CN201588702U (en) * | 2009-12-16 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Air duct of automobile engine |
| CN201916044U (en) * | 2010-12-27 | 2011-08-03 | 东风汽车公司 | Structure for improving air-inflowing rolling effect of petrol engine |
| CN202811106U (en) * | 2012-09-29 | 2013-03-20 | 长城汽车股份有限公司 | Air inlet mechanism of diesel motor |
| CN202883180U (en) * | 2012-10-28 | 2013-04-17 | 长城汽车股份有限公司 | Air inlet structure of supercharged engine |
| CN105673248A (en) * | 2016-01-25 | 2016-06-15 | 重庆长安汽车股份有限公司 | High-tumble ratio air inlet channel of cylinder head of gasoline engine |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620633A (en) * | 2017-09-08 | 2018-01-23 | 宁波市鄞州德来特技术有限公司 | Methanol engine |
| CN108035814A (en) * | 2017-11-27 | 2018-05-15 | 天津大学 | A kind of turbulence control method for fast press |
| CN108590899A (en) * | 2018-06-19 | 2018-09-28 | 天津大学 | A kind of shunting guide type air inlet path for diesel engine |
| CN108590899B (en) * | 2018-06-19 | 2023-12-26 | 天津大学 | Air inlet channel of split-flow guide type diesel engine |
| CN111140342A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Gas engine combustion system and gas engine with same |
| CN111287862A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
| CN111287863A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
| CN111287863B (en) * | 2020-05-13 | 2020-09-29 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
| CN111287862B (en) * | 2020-05-13 | 2020-09-29 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
| US11187182B1 (en) | 2020-05-13 | 2021-11-30 | Weichai Power Co., Ltd. | Cylinder head and gas engine |
| RU2761256C1 (en) * | 2020-05-13 | 2021-12-06 | Вэйчай Пауэр Ко., Лтд. | Cylinder head and gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170623 |
|
| RJ01 | Rejection of invention patent application after publication |