CN108104986A - Engine and its mixed admission device - Google Patents
Engine and its mixed admission device Download PDFInfo
- Publication number
- CN108104986A CN108104986A CN201711441255.1A CN201711441255A CN108104986A CN 108104986 A CN108104986 A CN 108104986A CN 201711441255 A CN201711441255 A CN 201711441255A CN 108104986 A CN108104986 A CN 108104986A
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- blade
- admission
- mixed
- section
- fixed disk
- Prior art date
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- 238000010276 construction Methods 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 39
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
-
- 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 invention discloses a kind of mixed admission devices of engine, including admission line, the blade being arranged in admission line and volume control device for adjusting two neighboring blade pitgh, admission line side wall offers exhaust gas inlet, blade arrangement is at exhaust gas inlet end, blade is multiple, multiple blades are arranged in a ring, and gas inlet space is formed between blade and admission line side wall.Two neighboring blade pitgh is adjusted by volume control device to realize the adjusting of gas inlet amount, avoid the situation of separately installed valve body, since multiple blades are arranged in a ring, so that exhaust gas uniformly mixes after entering admission line with air, the situation of separately installed mixer is avoided, efficiently reduces the overall volume of mixed admission device.The invention also discloses a kind of engines for including above-mentioned mixed admission device.
Description
Technical field
The present invention relates to waste gas circulations to utilize technical field, the mixed admission device of more particularly to a kind of engine.This hair
It is bright to further relate to a kind of engine for including mixed admission device.
Background technology
In recent years, the exhaust pollution of automobile and CO2Ball ecological environment caused by discharge destroys and greenhouse effects problem day
It is beneficial serious.Climate warming that the low automobile of the good fuel consumption rate of blowdown can not only alleviate global greenhouse effect and bring, ecological ring
The influence that border balance is destroyed.In order to reduce environmental pollution, EGR (Exhaust Gas Recirculation, exhaust gas recycling)
It is that the exhaust gas of engine discharge is reintroduced back to after air inlet pipe and live gas mixing to burn into combustion chamber, this measure can
Engine DS NOx Est is effectively reduced to widely use.
In order to realize exhaust gas utilization, the air inlet of conventional engines sets mixed admission device, specifically, traditional is mixed
Closing inlet duct includes admission line and is connected to the exhaust inlet pipe of admission line side wall, and exhaust inlet pipe is equipped with EGR valve
It is that either poppet i.e. EGR valve is that butterfly valve or poppet are individually installed in EGR circuit to butterfly valve, for controlling EGR flow.
Wherein admission line is equipped with the mixer for mixing air and exhaust gas.
However, due to realizing that the control of gas inlet amount needs to set valve body on exhaust inlet pipe, it is also necessary in air inlet pipe
It sets mixer that could realize that air is mixed with exhaust gas on road, causes mixed admission device overall volume larger.
Therefore, how to reduce the overall volume of mixed admission device, be that those skilled in the art's technology urgently to be resolved hurrily is asked
Topic.
The content of the invention
The object of the present invention is to provide a kind of mixed admission device of engine, the overall volumes of the mixed admission device
Reduce.It is a further object of the present invention to provide a kind of engines for including above-mentioned inlet duct.
To achieve the above object, the present invention provides a kind of mixed admission device of engine, described including admission line
Admission line side wall offers exhaust gas inlet, which is characterized in that further includes the blade being arranged in the admission line and is used for
The volume control device of the two neighboring blade pitgh is adjusted, the blade arrangement is in the exhaust gas inlet end, the blade
To be multiple, multiple blades are arranged in a ring, and it is empty that gas inlet is formed between the blade and the admission line side wall
Between.
Preferably, multiple blades are arranged in annulus, and circle ring center's line is overlapped with the admission line axis, phase
Spacing between adjacent two blades is equal.
Preferably, the volume control device includes connector, fixed disk, rotating disc and the driving turn disc
Driving device, the fixed disk fixes compared with the admission line, and the blade passes through the first axis pin and the fixed disk
It connects, first axis pin and the fixed disk clearance fit, is fixedly connected with and first axis pin one on the rotating disc
The second axis pin set to one, second axis pin are rotatably connected with connector, the connector and first axis pin
It is fixedly connected, first axis pin and the blade correspond.
Preferably, the volume control device include two fixed disks and two rotating discs, the rotating disc with it is described solid
Price fixing corresponds, and two fixed disks are arranged in the opposite sides of the blade.
Preferably, the admission line includes the air inlet section set gradually along gas motion direction, blade construction section
And air outlet section, the blade and the volume control device are located on the blade construction section, the internal diameter of the fixed disk and institute
It is equal to state air inlet section internal diameter, the air inlet section internal diameter is equal with the air outlet section internal diameter, and the rotating disc is set in
On the outside of the fixed disk, the lateral surface of the rotating disc and the sidewall spacers of the blade construction section coordinate.
Preferably, the blade construction section is an integral molding structure with the air outlet section, the blade construction section with it is described
Air inlet section is detachably connected.
Preferably, the blade is fusiformis section along perpendicular to the section of the admission line axis direction.
Preferably, the blade is an integral molding structure.
Preferably, the blade surface is equipped with erosion resistant coating.
A kind of engine including engine body and is connected to the mixed admission device of the engine body air inlet,
The engine mixed admission device is mixed admission device described in any one of the above embodiments.
In the above-mentioned technical solutions, the mixed admission device of engine provided by the invention including admission line, is set
Blade in admission line and the volume control device for adjusting two neighboring blade pitgh, admission line side wall open up
There is exhaust gas inlet, blade arrangement is multiple in exhaust gas inlet end, blade, and multiple blades are arranged in a ring, blade and admission line
Gas inlet space is formed between side wall.In specific work process, when engine works, adjusted by volume control device
The spacing of two neighboring blade, realizes the control of gas inlet amount, and exhaust gas enters air inlet by the spacing between two neighboring blade
It mixes with air in pipeline, is delivered to eventually by admission line inside engine main body.
By foregoing description, in the mixed admission device provided in the application, phase is adjusted by volume control device
Adjacent two blade pitghs and then the amount adjusting of realization gas inlet avoid the situation of separately installed valve body, since multiple blades are in ring
Shape is arranged so that exhaust gas uniformly mixes after entering admission line with air, avoids the situation of separately installed mixer, effectively
Reduce the overall volume of mixed admission device.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
The embodiment of the present invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to the attached drawing of offer.
The mixed admission blading that Fig. 1 is provided by the embodiment of the present invention is in the tomograph of opening state；
The mixed admission blading that Fig. 2 is provided by the embodiment of the present invention is in another visual angle three of opening state
Tie up structure chart；
The mixed admission blading that Fig. 3 is provided by the embodiment of the present invention is in the structure diagram of opening state；
Fig. 4 is structure diagram of the mixed admission device along A-A directions shown in Fig. 3；
Fig. 5 is structure diagram of the mixed admission device along B-B directions shown in Fig. 3；
The top view that Fig. 6 is closed by the mixed admission blading that the embodiment of the present invention provides；
The tomograph that Fig. 7 is closed by the mixed admission blading that the embodiment of the present invention provides；
Another visual angle three that Fig. 8 is closed by the mixed admission blading that the embodiment of the present invention provides
Tie up structure chart；
The structure diagram that Fig. 9 is closed by the mixed admission blading that the embodiment of the present invention provides；
Figure 10 is structure diagram of the mixed admission device along C-C directions shown in Fig. 9；
Figure 11 is structure diagram of the mixed admission device along D-D directions shown in Fig. 9；
The top view that Figure 12 is closed by the mixed admission blading that the embodiment of the present invention provides.
In wherein Fig. 1-12：1- air outlet sections, 2- fixed disks, 3- blades, the second axis pins of 4-, 5- rotating discs, 6- connectors,
7- air inlets section, 8- threaded fasteners, 9- blade construction sections.
Specific embodiment
The core of the present invention is to provide a kind of mixed admission device of engine, the overall volume of the mixed admission device
Reduce.It is a further object of the present invention to provide a kind of engines for including above-mentioned inlet duct.
In order to which those skilled in the art is made to more fully understand technical scheme, below in conjunction with the accompanying drawings and implement
The present invention is described in further detail for mode.
It please refers to Fig.1 to Figure 12, in a kind of specific embodiment, the engine of specific embodiment of the invention offer
Mixed admission device, including admission line, the blade being arranged in admission line 3 and for adjusting two neighboring 3 spacing of blade
Volume control device, admission line side wall offers exhaust gas inlet, and blade 3 is arranged in exhaust gas inlet end, blade 3 be it is multiple,
Multiple blades 3 are arranged in a ring, and gas inlet space is formed between blade 3 and admission line side wall.Since exhaust gas is usually warm
Degree is higher, in order to extend the service life of mixed admission device, it is preferable that blade 3 is metal blade, is specifically as follows steel knot
Structure.
In specific work process, when engine works, adjusted by volume control device between two neighboring blade 3
Away from the amount control of realization gas inlet, exhaust gas is entered by the spacing between two neighboring blade 3 in admission line to be mixed with air
It closes, is delivered to eventually by admission line inside engine main body.
Specifically, during work, airflow direction：Exhaust gas enters from the entrance a1 of mixing tube, by 3 groups of outer profiles of blade with
Region b between admission line, through the region c between adjacent blades 3, into the gas passage of admission line；It is at this point, fresh
The entrance a2 of air intake pipe enters the gas passage of admission line.Two strands of gases mix in flow process, from air inlet pipe
The gas outlet d outflows in road.
By foregoing description, in the mixed admission device provided in the application specific embodiment, pass through flow control
Device processed adjusts two neighboring 3 spacing of blade and then realizes that gas inlet amount is adjusted, and avoids the situation of separately installed valve body, by
It is arranged in a ring in multiple blades 3 so that exhaust gas uniformly mixes after entering admission line with air, avoids separately installed mixing
The situation of device changes the area that exhaust gas enters gas passage, realize EGR flow control；Exhaust gas enters between blade 3, shape
Air inlet is circularized, realizes that EGR is uniformly mixed, the function by EGR flow control and mixing uniformity control is realized, is integrated into one
A module is realized, efficiently reduces the overall volume of mixed admission device.
Preferably, multiple blades 3 are arranged in annulus, and circle ring center's line is overlapped with admission line axis, two neighboring leaf
Spacing between piece 3 is equal.
Preferably, volume control device includes the drive that connector 6, fixed disk 2, rotating disc 5 and driving rotating disc 5 rotate
Dynamic device, specifically, the driving device can be rotary cylinder or motor etc., specifically, motor can pass through gear drive
Device band turn Moving plate 5 rotates, it is preferable that motor is stepper motor, and fixed disk 2 is fixed compared with admission line, and blade 3 passes through
First axis pin is connected with fixed disk 2, the first axis pin and 2 clearance fit of fixed disk, is fixedly connected on rotating disc 5 and the first pin
Second axis pin 4 of the one-to-one setting of axis, the second axis pin 4 are rotatably connected with connector 6, and 6 and first axis pin of connector, which is fixed, to be connected
It connects, the first axis pin and blade 3 correspond.
In order to improve stability, it is preferable that volume control device includes two fixed disks 2 and two rotating discs 5, rotating disc 5
It is corresponded with fixed disk 2, two fixed disks 2 are arranged in the opposite sides of blade 3, specifically, each rotating disc 5
There is corresponding connector 6.
In another embodiment, volume control device includes fixed disk 2, rotating disc 5 and rotating disc 5 is driven to rotate
Driving device, specifically, the driving device can be rotary cylinder or motor etc., blade 3 is equipped with can with fixed disk 2
First rotation axis of rotation connection and the second rotation axis being connected with rotating disc 5, wherein rotating disc 5 are equipped with to be rotated for second
The sliding slot that axis slides.
It is mixed because exhaust gas needs enter gas passage from the passage c between blade 3 with live gas, 3 angulation changes of blade
Afterwards, by 3 groups of air inlet alternations of cross-section formed of blade, so as to fulfill the control of EGR flows.Shown in Fig. 1, blade 3 is in complete and opens
Device, the area of 3 region C of blade is big, and EGR flow is big；Shown in Fig. 7, the area of 33 region C of blade is small, EGR flows
Small, the achievable EGR flow of minimum is zero.
Specifically, admission line include the air inlet section 7 set gradually along gas motion direction, blade construction section 9 and
Air outlet section 1, blade 3 and volume control device are located on blade construction section 9.Specifically, air inlet section 7,3 construction section of blade
And 1 three of air outlet section is to be detachably connected.
Air-flow is hindered in order to reduce, it is preferable that the internal diameter of fixed disk 2 is equal with 7 internal diameter of air inlet section, air inlet
7 internal diameters of section are equal with 1 internal diameter of air outlet section, and rotating disc 5 is set in 2 outside of fixed disk, and lateral surface and the blade of rotating disc 5 are installed
The sidewall spacers cooperation of section 9, i.e. admission line inner wall smooth transition.
For the ease of dismounting mixed admission device, it is preferable that blade construction section 9 is an integral molding structure with air outlet section 1, leaf
Piece construction section 9 is detachably connected with air inlet section 7.Specifically, blade construction section 9 and air inlet section 7 are respectively equipped with first
Flange end and second flange end, wherein first flange end and second flange end are connected by threaded fastener 8, it is preferable that multiple spiral shells
Line fastener 8 is uniformly distributed along blade construction section 9 is circumferential.Since blade construction section 9 and air inlet section 7 are detachably connected,
Blade 3 is cleared up convenient for the later stage.
In order to extend the service life of blade 3, it is preferable that blade 3 is shuttle along perpendicular to the section of admission line axis direction
Tee section, i.e. 3 thick middle both sides of blade are thin.
For the ease of processing blade 3, processing efficiency is improved, it is preferable that blade 3 is an integral molding structure.
On the basis of above-mentioned each scheme, in order to extend the service life of mixed admission device, it is preferable that 3 surface of blade is set
There is erosion resistant coating.
A kind of engine that the application provides includes engine body and is connected to being mixed into for engine body air inlet
Device of air, wherein engine mixed admission device are any of the above-described kind of mixed admission device.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with its
The difference of his embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is defined herein
General Principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide scope of point.
Claims (10)
1. a kind of mixed admission device of engine, including admission line, the admission line side wall offers exhaust gas inlet,
It is characterized in that, further includes the blade (3) that is arranged in the admission line and for adjusting the two neighboring blade (3) spacing
Volume control device, the blade (3) is arranged in the exhaust gas inlet end, and the blade (3) is multiple, multiple blades
(3) arrange in a ring, gas inlet space is formed between the blade (3) and the admission line side wall.
2. mixed admission device according to claim 1, which is characterized in that multiple blades (3) in annulus arrange, and
Circle ring center's line is overlapped with the admission line axis, and the spacing between the two neighboring blade (3) is equal.
3. mixed admission device according to claim 1, which is characterized in that the volume control device includes connector
(6), the driving device that fixed disk (2), rotating disc (5) and the driving rotating disc (5) rotate, the fixed disk (2) compared with
The admission line is fixed, and the blade (3) is connected by the first axis pin with the fixed disk (2), first axis pin and institute
Fixed disk (2) clearance fit is stated, the second pin with the one-to-one setting of the first axis pin is fixedly connected on the rotating disc (5)
Axis (4), second axis pin (4) are rotatably connected with connector (6), and the connector (6) is fixed with first axis pin to be connected
It connects, first axis pin and the blade (3) correspond.
4. mixed admission device according to claim 1, which is characterized in that the volume control device is included described in two
Fixed disk (2) and two rotating discs (5), the rotating disc (5) corresponds with the fixed disk (2), described in two
Fixed disk (2) is arranged in the opposite sides of the blade (3).
5. mixed admission device according to claim 4, which is characterized in that the admission line is included along gas motion side
To air inlet section (7), blade construction section (9) and the air outlet section (1) set gradually, the blade (3) and the flow control
Device is located on the blade construction section (9), and the internal diameter of the fixed disk (2) is equal with air inlet section (7) internal diameter, institute
It is equal with the air outlet section (1) internal diameter to state air inlet section (7) internal diameter, the rotating disc (5) is set in the fixed disk (2) outside
Side, the lateral surface of the rotating disc (5) and the sidewall spacers of the blade construction section (9) coordinate.
6. mixed admission device according to claim 5, which is characterized in that the blade construction section (9) and the outlet
Section (1) is an integral molding structure, and the blade construction section (9) is detachably connected with the air inlet section (7).
7. mixed admission device according to claim 1, which is characterized in that the blade (3) is along perpendicular to the air inlet
The section in conduit axis direction is fusiformis section.
8. mixed admission device according to claim 7, which is characterized in that the blade (3) is an integral molding structure.
9. the mixed admission device according to any one of claim 1-8, which is characterized in that blade (3) surface is set
There is erosion resistant coating.
10. a kind of engine, including engine body and the mixed admission device of the engine body air inlet is connected to,
It is characterized in that, mixed admission device of the engine mixed admission device any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441255.1A CN108104986B (en) | 2017-12-27 | 2017-12-27 | Engine and mixed air inlet device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441255.1A CN108104986B (en) | 2017-12-27 | 2017-12-27 | Engine and mixed air inlet device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108104986A true CN108104986A (en) | 2018-06-01 |
| CN108104986B CN108104986B (en) | 2023-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441255.1A Active CN108104986B (en) | 2017-12-27 | 2017-12-27 | Engine and mixed air inlet device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104986B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798205A (en) * | 2019-04-11 | 2019-05-24 | 潍柴动力股份有限公司 | EGR mixer and engine with it |
| WO2019127098A1 (en) * | 2017-12-27 | 2019-07-04 | 潍柴动力股份有限公司 | Engine and mixed-gas intake device thereof |
| CN114673611A (en) * | 2022-04-14 | 2022-06-28 | 中国第一汽车股份有限公司 | Exhaust gas recirculation mixing device, exhaust gas recirculation system and vehicle |
| CN115059562A (en) * | 2022-05-25 | 2022-09-16 | 中国第一汽车股份有限公司 | EGR mixer, EGR system and control method thereof |
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| CN109798205B (en) * | 2019-04-11 | 2024-01-12 | 潍柴动力股份有限公司 | EGR (exhaust gas recirculation) mixer and engine with same |
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