CN108825357A - Vacuum cavitations type air inlet Tumble and swirl regulating mechanism - Google Patents
Vacuum cavitations type air inlet Tumble and swirl regulating mechanism Download PDFInfo
- Publication number
- CN108825357A CN108825357A CN201810397800.XA CN201810397800A CN108825357A CN 108825357 A CN108825357 A CN 108825357A CN 201810397800 A CN201810397800 A CN 201810397800A CN 108825357 A CN108825357 A CN 108825357A
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- CN
- China
- Prior art keywords
- air inlet
- control panel
- control volume
- pipe
- wall surface
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
- F02B31/06—Movable means, e.g. butterfly 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
A kind of vacuum cavitations type air inlet Tumble and swirl regulating mechanism belonging to technical field of internal combustion engines, pipe, adjusting rod, control volume, control panel, spring are transmitted including adjusting body, adjustable plate, vacuum evacuation device, pressure, vacuum evacuation device is arranged in the rear end of muffler, control panel is arranged in control volume, the inner wall of control panel and control volume is in sealing contact, and the upper wall surface of control panel is linked together by the upper wall surface of spring and control volume.In the present invention, when engine, when small load condition is run, air inlet tumble flow is bigger, and in high load working condition operation, pumping loss is smaller.The present invention has rational design, and structure is simple, the optimization design suitable for natural aspiration induction system of internal combustion engine.
Description
Technical field
The invention belongs to technical field of internal combustion engines, specifically, being that naturally aspirated engine air inlet system may be implemented in one kind
The vacuum cavitations type air inlet Tumble and swirl regulating mechanism of system self-control.
Background technique
Early 20th century, Britain B.Hopkinson have found in engine test：When disturbing the air in cylinder, it can accelerate
After combustion process eighties, by the air movement in the gas handling system tissue cylinder of engine, vortex is utilized to realize gaseous mixture
Stratified combustion effect is increased using tumble flow and burns indoor turbulence intensity and use lean combustion mode etc., all becomes mesh
The research contents that preceding spark ignition engine is paid close attention to.Air movement in cylinder is transition and complexity, from gas
From the point of view of the mass motion of body macroscopic view, inclined-axis swirl is normally behaved as.At this moment vortex and tumble flow can be only as inclined-axis swirl two
Vertical component.The turbulence intensity of air movement in combustion chamber when compression ends equally can be improved in test discovery tumble flow, increases rapid
Intensity of flow can promote rate of flame propagation to accelerate, and combustion duration shortens, and heat liberation rate, heat release rate improves, so as to improve combustion process,
Improve the dynamic property of engine.Tumble flow mode is better than vortex, because the formation of tumble flow relies on casing wall and piston motion, intake process
In can preserve biggish kinetic energy, a part of kinetic energy makes the air movement of large scale be broken into numerous small scales in compression process
Microvovtex, improve the turbulence intensity in cylinder, and be vortexed and generally experiencing the process constantly to decay.As a whole, why vapour
On the one hand oil machine is since petrol engine rotational speed is higher using tumble flow, this results in each combustion stroke to need within the shorter time
It completes, and tumble flow can guarantee phase biggish tubulence energy upon compression, and rate of flame propagation increase is made not shorten combustion duration；
Second is that the available space of gasoline engine is smaller, and swirl air passage occupied space is larger due to the limitation of structure.
After searching the existing documents, discovery number of patent application is 20121041673.5, and a kind of entitled petrol engine can
The patented technology for becoming air inlet tumble flow regulating mechanism, provides a kind of technology that air inlet tumble flow is adjusted using Electric Actuator, but
It is that it can not achieve the self-control of air inlet tumble flow.
Summary of the invention
In view of the above problems, the present invention provides a kind of vacuum cavitations type air inlet Tumble and swirl regulating mechanisms, and air inlet may be implemented
The self-control of tumble flow.
The present invention is achieved through the following technical solutions, the present invention include air inlet pipe, air filter, air throttle, engine,
Exhaust pipe, catalysis bag, muffler, inlet manifold, adjust body, wedge adjusting block, vacuum evacuation device, pressure transmitting pipe, adjusting rod,
Control volume, control panel, spring, the gas outlet of air inlet pipe are connected with the air inlet of inlet manifold, the gas outlet of inlet manifold with
The air inlet of engine is connected, and the air inlet of exhaust pipe is connected with the gas outlet of engine, and air filter, air throttle are sequentially arranged
In air inlet pipe, catalysis bag, muffler are sequentially arranged on exhaust pipe, are adjusted body and are arranged on inlet manifold, wedge adjusting block
It is arranged in adjusting in vivo, adjusting body internal cavity cross section is rectangle, and wedge adjusting block cross section is rectangle, and wedge is adjusted
Block and the internal wall surface of adjusting are in sealing contact；Vacuum evacuation device arranges the rear end of muffler, and the inside of vacuum evacuation device is with tapered
Pipe and diffuser, reducing pipe are located at the upstream of diffuser；The lower wall surface of control volume has open-work, and control panel is arranged in control volume
Interior, the inner wall of control panel and control volume is in sealing contact, and the upper wall surface of control panel is connected by the upper wall surface of spring and control volume
Together, the upper end of adjusting rod is consolidated after passing through control volume lower wall surface with control panel, and the lower end of adjusting rod, which passes through, to be adjusted
It is consolidated after the upper wall surface of body with wedge adjusting block, one end of pressure transmitting pipe is connected to vacuum evacuation device, pressure transmitting
The other end of pipe is connected to the control volume internal cavity above control panel.
Further, in the present invention, vacuum evacuation device internal cavity cross section is circle, and control volume internal cavity is transversal
Face is rectangle.
The beneficial effects of the invention are as follows：The present invention has rational design, and structure is simple, self adjusting for air inlet tumble flow may be implemented
Section.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of A-A section in Fig. 1；
Fig. 3 is the structural schematic diagram of B-B section in Fig. 1；
Fig. 4 is the structural schematic diagram of C-C section in Fig. 1；
Fig. 5 is the partial enlarged view of Fig. 1；
Label in attached drawing is respectively：1, air inlet pipe, 2, air filter, 3, air throttle, 4, engine, 5, exhaust pipe, 6, catalysis
Packet, 7, muffler, 8, inlet manifold, 9, adjusting body, 10, wedge adjusting block, 11, vacuum evacuation device, 12, pressure transmitting pipe, 13,
Adjusting rod, 14, control volume, 15, control panel, 16, spring, 17, reducing pipe, 18, diffuser.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, before the present embodiment is with technical solution of the present invention
It mentions, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following embodiments.
Embodiment
The embodiment of the present invention is as shown in Figures 1 to 5, the present invention include air inlet pipe 1, air filter 2, air throttle 3, engine 4,
Exhaust pipe 5, muffler 7, inlet manifold 8, adjusts body 9, wedge adjusting block 10, vacuum evacuation device 11, pressure transmitting at catalysis bag 6
The gas outlet of pipe 12, adjusting rod 13, control volume 14, control panel 15, spring 16, air inlet pipe 1 is connected with the air inlet of inlet manifold 8
It connects, the gas outlet of inlet manifold 8 is connected with the air inlet of engine 4, the air inlet of exhaust pipe 5 and the gas outlet of engine 4
It is connected, air filter 2, air throttle 3 are sequentially arranged in air inlet pipe 1, and catalysis bag 6, muffler 7 are sequentially arranged on exhaust pipe 5, are adjusted
Section body 9 is arranged on inlet manifold 8, and wedge adjusting block 10, which is arranged in, to be adjusted in body 9, and adjusting 9 internal cavity cross section of body is length
Rectangular, 10 cross section of wedge adjusting block is rectangle, and wedge adjusting block 10 and adjusting 9 inner wall of body are in sealing contact；Vacuum means
The rear end of 11 arrangement mufflers 7 is set, the inside of vacuum evacuation device 11 has reducing pipe 17 and diffuser 18, and reducing pipe 17 is located at gradually
The upstream of expander 18；The lower wall surface of control volume 14 has open-work, and control panel 15 is arranged in control volume 14, control panel 15 and control
The inner wall of body 14 is in sealing contact, and the upper wall surface of control panel 15 is linked together by spring 16 and the upper wall surface of control volume 14,
The upper end of adjusting rod 13 is consolidated after passing through 14 lower wall surface of control volume with control panel 15, and the lower end of adjusting rod 13, which passes through, to be adjusted
It is consolidated after the upper wall surface of body 9 with wedge adjusting block 10, one end of pressure transmitting pipe 12 is connected to vacuum evacuation device 11, is pressed
The other end of power transmitting pipe 12 is connected to 14 internal cavity of control volume of 15 top of control panel；11 internal cavity of vacuum evacuation device is horizontal
Section is circle, and 14 internal cavity cross section of control volume is rectangle.
In the working process of the present invention, when 4 load of engine increases, the extraction flow in exhaust pipe 5 also increases, gradually
The flow velocity in 17 exit of the draw also increases, and the negative pressure of 11 internal cavity of vacuum evacuation device increases, this negative pressure increase is acted on by pressure
Transmitting pipe 12 is transmitted in the control volume 14 of 15 top of control panel, to make control panel 15 that adjusting rod 13 be driven to move up and press
Contracting spring 16, adjusting rod 13 drive wedge adjusting block 10 to move up, and the necking of inlet manifold 8 becomes larger, and engine pumping loss is smaller.
When 4 load reduction of engine, the extraction flow in exhaust pipe 5 is reduced, and the flow velocity in 17 exit of reducing pipe is also reduced, vacuumized
The negative pressure of 11 internal cavity of device reduces, this negative pressure reduction effect is transmitted to the control of 15 top of control panel by pressure transmitting pipe 12
In body 14, under the elastic reaction of spring 16, control panel 15 drives adjusting rod 13 also to move down, so that adjusting rod 13 be made to drive
Wedge adjusting block 10 moves down, and the necking of inlet manifold 8 becomes smaller, and engine charge mixed flow is bigger.
Claims (2)
1. a kind of vacuum cavitations type air inlet Tumble and swirl regulating mechanism, including air inlet pipe (1), air filter (2), air throttle (3), engine
(4), exhaust pipe (5), catalysis bag (6), muffler (7), inlet manifold (8), the gas outlet and inlet manifold (8) of air inlet pipe (1)
Air inlet be connected, the gas outlet of inlet manifold (8) is connected with the air inlet of engine (4), the air inlet of exhaust pipe (5)
It is connected with the gas outlet of engine (4), air filter (2), air throttle (3) are sequentially arranged on air inlet pipe (1), and catalysis bag (6) disappears
Sound device (7) is sequentially arranged on exhaust pipe (5), which is characterized in that further includes adjusting body (9), wedge adjusting block (10), vacuumizing
Device (11), pressure transmitting pipe (12), adjusting rod (13), control volume (14), control panel (15), spring (16), adjust body (9) cloth
It sets on inlet manifold (8), wedge adjusting block (10), which is arranged in, to be adjusted in body (9), and adjusting body (9) internal cavity cross section is length
Rectangular, wedge adjusting block (10) cross section is rectangle, and wedge adjusting block (10) and adjusting body (9) inner wall are in sealing contact；It takes out
Vacuum plant (11) arranges that the rear end of muffler (7), the inside of vacuum evacuation device (11) have reducing pipe (17) and diffuser
(18), reducing pipe (17) is located at the upstream of diffuser (18)；The lower wall surface of control volume (14) has open-work, control panel (15) arrangement
In control volume (14), control panel (15) and the inner wall of control volume (14) are in sealing contact, and the upper wall surface of control panel (15) passes through
Spring (16) and the upper wall surface of control volume (14) link together, after the upper end of adjusting rod (13) passes through control volume (14) lower wall surface
Be consolidated with control panel (15), the lower end of adjusting rod (13) pass through after the upper wall surface for adjusting body (9) with wedge adjusting block
(10) it is consolidated, one end of pressure transmitting pipe (12) is connected to vacuum evacuation device (11), and the another of (12) is managed in pressure transmitting
End is connected to control volume (14) internal cavity above control panel (15).
2. vacuum cavitations type air inlet Tumble and swirl regulating mechanism according to claim 1, it is characterised in that the vacuum means
(11) internal cavity cross section is set as circle, control volume (14) internal cavity cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810397800.XA CN108825357A (en) | 2018-04-28 | 2018-04-28 | Vacuum cavitations type air inlet Tumble and swirl regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810397800.XA CN108825357A (en) | 2018-04-28 | 2018-04-28 | Vacuum cavitations type air inlet Tumble and swirl regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825357A true CN108825357A (en) | 2018-11-16 |
Family
ID=64155032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810397800.XA Pending CN108825357A (en) | 2018-04-28 | 2018-04-28 | Vacuum cavitations type air inlet Tumble and swirl regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825357A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58197422A (en) * | 1982-05-12 | 1983-11-17 | Toyota Motor Corp | Suction control device for internal-combustion engine |
| JPH08109837A (en) * | 1994-08-17 | 1996-04-30 | Toyota Motor Corp | Intake air flow control device for internal combustion engine |
| CN204386725U (en) * | 2015-01-07 | 2015-06-10 | 中国人民解放军第二炮兵驻第三十一研究所军事代表室 | A kind of pressure-controlled air inlet flow guide device of engine |
| CN204386747U (en) * | 2015-01-07 | 2015-06-10 | 中国人民解放军第二炮兵驻第三十一研究所军事代表室 | A kind of plug-type engine charge control gear |
| CN105508030A (en) * | 2015-12-31 | 2016-04-20 | 上海交通大学 | Mechanical pipe reduced mouth adjusting device |
-
2018
- 2018-04-28 CN CN201810397800.XA patent/CN108825357A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58197422A (en) * | 1982-05-12 | 1983-11-17 | Toyota Motor Corp | Suction control device for internal-combustion engine |
| JPH08109837A (en) * | 1994-08-17 | 1996-04-30 | Toyota Motor Corp | Intake air flow control device for internal combustion engine |
| CN204386725U (en) * | 2015-01-07 | 2015-06-10 | 中国人民解放军第二炮兵驻第三十一研究所军事代表室 | A kind of pressure-controlled air inlet flow guide device of engine |
| CN204386747U (en) * | 2015-01-07 | 2015-06-10 | 中国人民解放军第二炮兵驻第三十一研究所军事代表室 | A kind of plug-type engine charge control gear |
| CN105508030A (en) * | 2015-12-31 | 2016-04-20 | 上海交通大学 | Mechanical pipe reduced mouth adjusting device |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |
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| RJ01 | Rejection of invention patent application after publication |