CN202811106U - Air inlet mechanism of diesel motor - Google Patents
Air inlet mechanism of diesel motor Download PDFInfo
- Publication number
- CN202811106U CN202811106U CN2012205075212U CN201220507521U CN202811106U CN 202811106 U CN202811106 U CN 202811106U CN 2012205075212 U CN2012205075212 U CN 2012205075212U CN 201220507521 U CN201220507521 U CN 201220507521U CN 202811106 U CN202811106 U CN 202811106U
- Authority
- CN
- China
- Prior art keywords
- inlet duct
- intake valve
- intake
- air
- valve
- 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 - Fee Related
Links
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
Abstract
The utility model relates to a motor part, in particular to an air inlet mechanism of a diesel motor. The air inlet mechanism comprises an air cylinder cover, wherein an exhaust valve, a first inlet valve, and a second inlet valve are arranged on the exhaust valve, the first inlet valve is connected with a spiral inlet channel, and the second inlet valve is connected with a tangential inlet channel. Due to the fact that the spiral inlet channel and the tangential inlet channel are arranged on the air cylinder cover, a swirl rate inside the air cylinder is raised through the spiral inlet channel, and at the same time, enough air input is supplied into the air cylinder through the tangential inlet channel.
Description
Technical field
The utility model relates to a kind of engine components, relates in particular to a kind of diesel engine air intake structure.
Background technique
The air intake structure of diesel engine has great impact for the performance of motor, common diesel engine mostly is single intake duct structure, in cylinder head suction port and air outlet are set, wherein, suction port is connected with spiral inlet duct or tangential inlet duct, spiral inlet duct can produce higher swirl rate in cylinder, a little less than the eddy current effect of tangential inlet duct, but air inflow is larger, along with the requirement of people to environmental protection and energy consumption, existing structure can't be in the requirement of satisfying simultaneously diesel engine aspect swirl rate and the air inflow.
The model utility content
For solving the deficiencies in the prior art, the utility model provides a kind of diesel engine air intake structure, and it can produce higher swirl rate, satisfies simultaneously the requirement of air inflow.
For achieving the above object, diesel engine air intake structure of the present utility model comprises cylinder head, is provided with exhaust valve and the first intake valve and the second intake valve in cylinder head, described the first intake valve is connected with spiral inlet duct, and the second intake valve is connected with tangential inlet duct.
As to restriction of the present utility model, described spiral inlet duct is provided with the air inlet regulating device of the air inflow of adjusting this spiral inlet duct.
As to restriction of the present utility model, described exhaust valve is made as two, the first intake valve, the second intake valve and exhaust valve are take the axis of cylinder as distribution center, circle distribution is on cylinder head, the first intake valve is parallel with the cylinder longitudinal median plane with the line of centres of the second intake valve, and the first intake valve is in the upstream that is positioned at the second intake valve along eddy current direction in the cylinder.
As to restriction of the present utility model, the suction port cross section of described spiral inlet duct is approximate rectangular, and the suction port cross section of tangential inlet duct is rounded, and inlet diameter is 28-32mm.
As to restriction of the present utility model, the plane that the axis of process spiral inlet duct is vertical with this air flow for helical inlet port and the angle a of cylinder head longitudinal structure line are 58～62 °, the eddy current of spiral inlet duct partly is the gentle slope type structure, its underpart is the snail shell structure of standard, and the suction port of this spiral inlet duct to the helical intake sidewall between the eddy current head is an arc surface, its average curvature be about the first intake valve air valve seat ring curvature 1/10, and the tangential air flue sidewall radius of curvature between the suction port of this helical intake sidewall and tangential inlet duct and its air flue head is the same order of magnitude.
Adopt technique scheme, its beneficial effect is as follows: by spiral inlet duct and tangential inlet duct are set in cylinder head, can improve swirl rate in the cylinder by tangential inlet duct, simultaneously by spiral inlet duct for sufficient air inflow is provided in the cylinder; By the control of air inlet regulating device to spiral inlet duct, can change the air inflow of spiral inlet duct according to the different operating modes of diesel engine, thus the swirl rate in the real time altering cylinder; The first intake valve is arranged on the upstream of the second intake valve, so that the air in the spiral inlet duct slackens the eddy current that tangential inlet duct produces, improves the air inflow of tangential inlet duct; The spiral inlet duct cross section is approximate rectangular, and the tangential inlet duct cross section is rounded, and by rational parameters, can improve overall performance.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is done further to describe in detail:
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, cylinder head; 2, exhaust valve; 3, the first intake valve; 4, the second intake valve; 5, spiral inlet duct; 6, tangential inlet duct; 7, air inlet regulating device, 8, cylinder longitudinal center structural plan; 10, helical intake sidewall; 11, tangential air flue sidewall.
Embodiment
As shown in Figure 1, diesel engine air intake structure of the present utility model comprises that the cylinder head 1 of motor, cylinder head 1 are circular, and the axis circle distribution along this cylinder head 1 on its end face has two exhaust valves 2 and the first intake valve 3 and the second intake valve 4.The first intake valve 3 is connected with spiral inlet duct 5, be connected with tangential inlet duct 6 on the second intake valve 4, the first intake valve 3 is parallel with cylinder longitudinal median plane 8 with the line of centres of the second intake valve 4, and, the cross section of the suction port of spiral inlet duct 5 is approximate rectangular, the cross section of the suction port of tangential inlet duct 6 is rounded, and its inlet diameter is 28-32mm.The first intake valve 3 is in the upstream of the second intake valve 4 in the direction along eddy current in the cylinder, and therefore, the air in the spiral inlet duct 5 can arrive tangential inlet duct 6, and the eddy current effect of minimizing tangential inlet duct 6 makes it be more conducive to increase air inflow.
Also be provided with air inlet regulating device 7 on spiral inlet duct 5, it is connected with the control computer of automobile, makes diesel engine be in the working state of closed-loop.Obtain engine behavior according to crossing sensor the control computer expert, can control air inlet regulating device 7 according to setting program, the air inflow of real time altering spiral inlet duct 5, swirl rate in the cylinder is regulated, so that the diesel oil that sprays in the cylinder can fully mix all the time with air, keep best working state.
For eddy current and air inflow in the cylinder are balanced, give full play to working efficiency, the plane that the axis of setting process spiral inlet duct 5 is vertical with these spiral inlet duct 5 air-flows and the angle a of cylinder head 1 longitudinal structure line are 58～62 °, the eddy current of spiral inlet duct 5 partly is the gentle slope type structure, its underpart is the snail shell structure of standard, and the suction port of this spiral inlet duct 5 to the helical intake sidewall 10 between the eddy current head is an arc surface, its average curvature be about the first intake valve 3 air valve seat ring curvature 1/10, and tangential air flue sidewall 11 radius of curvature between the suction port of this helical intake sidewall 10 and tangential inlet duct 6 and its air flue head are the same order of magnitude, the radius of curvature that is them differs less, can be above 10 times.
Claims (5)
1. diesel engine air intake structure, comprise cylinder head (1), it is characterized in that: be provided with exhaust valve (2) and the first intake valve (3) and the second intake valve (4) in cylinder head (1), described the first intake valve (3) is connected with spiral inlet duct (5), and the second intake valve (4) is connected with tangential inlet duct (6).
2. diesel engine air intake structure according to claim 1 is characterized in that: described spiral inlet duct (5) is provided with the air inlet regulating device (7) of the air inflow of adjusting this spiral inlet duct (5).
3. diesel engine air intake structure according to claim 1 and 2, it is characterized in that: described exhaust valve (2) is made as two, the first intake valve (3), the second intake valve (4) and exhaust valve (2) are take the axis of cylinder as distribution center, circle distribution is on cylinder head (1), the first intake valve (3) is parallel with cylinder longitudinal median plane (8) with the line of centres of the second intake valve (4), and the first intake valve (3) is in the upstream that is positioned at the second intake valve (4) along eddy current direction in the cylinder.
4. diesel engine air intake structure according to claim 3 is characterized in that: the suction port cross section of described spiral inlet duct (5) is approximate rectangular, and the suction port cross section of tangential inlet duct (6) is rounded, and inlet diameter is 28-32mm.
5. diesel engine air intake structure according to claim 4, it is characterized in that: the plane that the axis of process spiral inlet duct (5) is vertical with this spiral inlet duct (5) air-flow and the angle a of cylinder head (1) longitudinal structure line are 58～62 °, the eddy current of spiral inlet duct (5) partly is the gentle slope type structure, its underpart is the snail shell structure of standard, and the suction port of this spiral inlet duct (5) to the helical intake sidewall (10) between the eddy current head is an arc surface, its average curvature be about the first intake valve (3) air valve seat ring curvature 1/10, and the suction port of this helical intake sidewall (10) and tangential inlet duct (6) and tangential air flue sidewall (11) radius of curvature between its air flue head are the same order of magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205075212U CN202811106U (en) | 2012-09-29 | 2012-09-29 | Air inlet mechanism of diesel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205075212U CN202811106U (en) | 2012-09-29 | 2012-09-29 | Air inlet mechanism of diesel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811106U true CN202811106U (en) | 2013-03-20 |
Family
ID=47869994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205075212U Expired - Fee Related CN202811106U (en) | 2012-09-29 | 2012-09-29 | Air inlet mechanism of diesel motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811106U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291488A (en) * | 2013-06-28 | 2013-09-11 | 吉林大学 | Method of increasing swirl intensity and swirl ratio for diesel engine inlet |
| CN106884733A (en) * | 2017-04-14 | 2017-06-23 | 无锡开普机械有限公司 | Air inlet guide frame of the air intake duct in cylinder cover bottom surface |
| 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 |
| CN111140678A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Vortex ratio adjusting device suitable for single cylinder engine test |
-
2012
- 2012-09-29 CN CN2012205075212U patent/CN202811106U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291488A (en) * | 2013-06-28 | 2013-09-11 | 吉林大学 | Method of increasing swirl intensity and swirl ratio for diesel engine inlet |
| CN103291488B (en) * | 2013-06-28 | 2016-06-08 | 吉林大学 | A kind of method improving diesel engine inlet strength of vortex and swirl ratio |
| CN106884733A (en) * | 2017-04-14 | 2017-06-23 | 无锡开普机械有限公司 | Air inlet guide frame of the air intake duct in cylinder cover bottom surface |
| 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 |
| CN111140678A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Vortex ratio adjusting device suitable for single cylinder engine test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205013163U (en) | Height rolls rascally says and engine | |
| CN202811106U (en) | Air inlet mechanism of diesel motor | |
| CN201916044U (en) | Structure for improving air-inflowing rolling effect of petrol engine | |
| CN202202909U (en) | Turbo supercharging gasoline engine and cam axle and air inlet cam | |
| CN103696868B (en) | There is high-eddy and the engine cylinder head system that rolls stream ratio | |
| CN204591503U (en) | Direct spray petrol engine in cylinder cylinder | |
| CN202431385U (en) | Air inlet channel of diesel engine | |
| CN201991666U (en) | Gas inlet passage of engine | |
| CN209212375U (en) | Air inlet path for diesel engine | |
| CN201810431U (en) | Diesel engine intake duct | |
| CN205225521U (en) | Air inlet channel of diesel engine | |
| CN201568152U (en) | Air-passage structure of gasoline direct injection engine | |
| CN201934229U (en) | Double-tangential air inlet passage of four-valve cylinder diesel engine | |
| CN202883180U (en) | Air inlet structure of supercharged engine | |
| CN102305146A (en) | Novel diesel engine cylinder cover | |
| CN202250443U (en) | Split engine air duct | |
| CN102787936A (en) | Low-swirl-rate spiral air inlet passage of diesel | |
| CN203321693U (en) | Four-valve engine cylinder head provided with separated gas ducts | |
| CN201236749Y (en) | Air inlet flue of engine cylinder cap | |
| CN202370685U (en) | Engine air passage and combustion chamber structure | |
| CN201810430U (en) | Swirl ratio variable diesel air inlet system | |
| CN201972803U (en) | Cylinder cover of motorcycle engine | |
| CN205370807U (en) | Air inlet system of diesel engine | |
| CN202500669U (en) | Four-valve diesel engine spiral and tangential combination air inlet channel | |
| CN201521360U (en) | Novel gas passage in cylinder cover |
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 |
Granted publication date: 20130320 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |