CN106089510B - A kind of combustion-supporting driver of nonequilibrium plasma and control method - Google Patents
A kind of combustion-supporting driver of nonequilibrium plasma and control method Download PDFInfo
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- CN106089510B CN106089510B CN201610508472.7A CN201610508472A CN106089510B CN 106089510 B CN106089510 B CN 106089510B CN 201610508472 A CN201610508472 A CN 201610508472A CN 106089510 B CN106089510 B CN 106089510B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 42
- 238000011217 control strategy Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 10
- 230000006698 induction Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000008246 gaseous mixture Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000001535 kindling effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
- F02M27/04—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism
- F02M27/042—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism by plasma
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
本发明公开一种非平衡等离子体助燃激励器及控制方法，非平衡等离子体助燃激励器包括电极、通电滑块、气门座、气门头部、气门杆和气门导管；所述电极包括上电极和下电极；所述上电极设置在气门座上；且所述上电极通过导线与地相连接；所述下电极设置在气门头部处，且所述下电极通过导线与电源相连接；所述通电滑块设置在气门杆上，且所述通电滑块与所述气门导管相接触；所述气门导管与电源相连接。本发明能够提高内燃机在各工况条件下的着火性能，进而提高内燃机经济性、改善内燃机运转稳定性、扩大燃料的稀燃极限、减少污染物排放；本发明的电极没有暴露在燃烧室内，在没有高温、高压、火焰冲击振动和积碳的影响下，电极的使用寿命更长。
The invention discloses an unbalanced plasma combustion-supporting exciter and a control method. The unbalanced plasma combustion-supporting exciter comprises an electrode, an electrified slider, a valve seat, a valve head, a valve stem and a valve guide; the electrode comprises an upper electrode and a valve guide. a lower electrode; the upper electrode is arranged on the valve seat; and the upper electrode is connected to the ground through a wire; the lower electrode is arranged at the head of the valve, and the lower electrode is connected to a power source through a wire; the The power-on slider is arranged on the valve stem, and the power-on slider is in contact with the valve guide; the valve guide is connected with a power source. The invention can improve the ignition performance of the internal combustion engine under various working conditions, thereby improving the economy of the internal combustion engine, improving the operation stability of the internal combustion engine, expanding the lean limit of the fuel, and reducing the emission of pollutants; the electrode of the invention is not exposed in the combustion chamber. Longer electrode life without the effects of high temperature, high pressure, flame shock vibration and carbon deposits.
Description
Technical field
The invention belongs to technical field of fuel combustion, specifically, be a kind of combustion-supporting driver of nonequilibrium plasma and
Control method.
Background technique
Lean burn is one research direction being concerned of internal combustion engine research field in recent years.Fuel is less than in equivalent proportion
It burns under conditions of stoichiometric ratio, efficiency of combustion and fuel economy, the discharge for reducing HC and CO can be effectively improved；And
And compared with stoichiometric ratio burning, since ignition temperature is lower, so the NO of lean burnXIt discharges relatively low.Therefore, dilute
Thin combustion technology has broad application prospects on internal combustion engine, and has obtained the extensive concern of internal combustion engine research field.
It is so-called thin, refer in fuel-air mixture, the content of fuel is less compared with reacting completely just.This
Combustible component in gaseous mixture is caused to reduce, therefore the kindling of engine is more difficult under lean conditions, be easy to cause internal combustion engine
Job insecurity.Moreover, when internal combustion engine is approaching or at lean flammability limit, the combustible being further reduced, which will lead to, to catch fire or portion
The probability of divided combustion increases, this directly contributes cycle of engine variation and is significantly increased, and the emission behaviour of HC, CO sharply deteriorate, from
And influence internal combustion engine overall performance.
Nonequilibrium plasma assisted combustion techniques are a kind of New combustion techniques of rapid rising in recent years.The technology is logical
The heavy ion and electronics that the gaseous molecular of electroneutral is ionized into electrification under certain voltage are crossed, reaction can be greatly improved and lived
Property, to improve the reactivity of reactant, extension lean flammability limit.But nonequilibrium plasma electric discharge discharge effect by
Gas pressure condition influence is very big, is difficult to realize effectively ionize under high pressure.In the ignition timing of internal combustion engine, cylinder
Pressure is very high, therefore the technology path lighted a fire in engine cylinder using nonequilibrium plasma involved in presently relevant patent
It is difficult to realize；In contrast, being ionized by using the combustion-supporting means of non-equilibrium plasma, under the lower pressure of inlet location
The method of fuel, air or gaseous mixture can be improved the reactivity of reactant, have the kindling for improving internal-combustion engine operated with lean mixture
Ability, the potentiality for improving internal combustion engine economy and discharge.
Summary of the invention
The present invention provides a kind of combustion-supporting drivers of nonequilibrium plasma, are come with this to improve internal combustion engine lean burn
Flammability extension lean flammability limit, accelerates burning velocity, improves efficiency of combustion and fuel economy, improvement discharge.
The technical solution of the present invention is as follows: a kind of combustion-supporting driver of nonequilibrium plasma, including electrode, energization sliding block, gas
Gate seat, head portion that, valve stem and valve guide bushing；The electrode includes top electrode and lower electrode；The top electrode is arranged in gas
On gate seat；And the top electrode is connected to the ground by conducting wire；The lower electrode is arranged at head portion that, and the lower electrode
It is controlled to a power supply by conducting wire；The energization sliding block is arranged on valve stem, and the energization sliding block and the valve guide bushing
It is in contact；The valve guide bushing is controlled to a power supply.
As a kind of perferred technical scheme, the top electrode and the lower electrode are disposed as an annular electrode, and institute
It states top electrode and the lower electrode is made of same material.
As a kind of perferred technical scheme, the conducting wire is embedded in inside valve.
As a kind of perferred technical scheme, the lower electrode other end is connected by conducting wire with energization sliding block.
A kind of control method of the combustion-supporting driver of nonequilibrium plasma: at the beginning of induction stroke, when piston is located at burning
When ceiling portion, head portion that and valve seating are in contact, and inlet valve is in close state；When induction stroke starts, piston is transported downwards
Dynamic, head portion that moves downward simultaneously, separates head portion that and valve seating, keeps inlet valve in the open state；Work as valve disc
When portion and valve seating separate, power supply starts to power under the control of control strategy, forms potential difference between top electrode and lower electrode,
The combustion-supporting driver of nonequilibrium plasma is started to work, and air is being passed through through entering combustion chamber between head portion that and valve seating
Nonequilibrium plasma is ionized to when crossing between top electrode and lower electrode；When induction stroke terminates, head portion that is moved upwards,
The position for returning to valve seating is closed head portion that and valve seating, at this time power outage, and nonequilibrium plasma is combustion-supporting to swash
Device is encouraged to stop working.
The control strategy refers to, is powered when IO Intake Valve Opens；It is powered off when IC Intake Valve Closes.
Combuster is set below a kind of combustion-supporting driver of nonequilibrium plasma of the present invention；It is arranged below combustion chamber
There is a piston, the periphery of combustion chamber and piston is provided with cylinder sleeve；The upper surface of combustion chamber, the combustion-supporting driver of nonequilibrium plasma one
Side is provided with spark plug.
The present invention ionized air or gaseous mixture under the lower pressure of air inlet have higher feasibility.
The present invention realizes the ignition control for corresponding to different operating conditions by control strategy, realizes accurate igniting.
The special arrangement mode of the combustion-supporting driver of nonequilibrium plasma of the present invention, so that all charges can quilt
Ionization, and the high-activity component generated after ionization can be made to quickly enter cylinder, increase active component depositing in cylinder
The time is stayed, the plasma quantity generated is greatly improved, residual gas can be effectively reduced in air motion and cylinder to igniting
The negative effect of performance bring.
The present invention is the power supply of lower electrode by energization sliding block.
Compared with prior art, the beneficial effects of the present invention are: (1) can be improved internal combustion engine under each working condition
Flammability, and then improve internal combustion engine economy, improve internal combustion engine operation stability, expand fuel lean flammability limit, reduce
Pollutant emission；(2) electrode of the invention is not exposed in combustion chamber, in no high temperature, high pressure, flame impingement vibration and product
Under the influence of carbon, the service life is longer for electrode；(3) the combustion-supporting excitation of non-equilibrium plasma is set by head portion that and valve seating
The two poles of the earth of device prevent take up air intake duct space, do not influence air input of engine by air, will not reduce the coefficient of charge of engine, and diminution helps
The size of driver is fired, convenient in the arrangement of engine.
Attached drawing:
Fig. 1: for the structural schematic diagram of the combustion-supporting driver of nonequilibrium plasma of the invention；
Fig. 2: for top electrode structural schematic diagram of the invention；
Fig. 3: for lower electrode arrangement schematic diagram of the invention；
Fig. 4: for course of work schematic diagram of the invention；
Fig. 5: for control strategy flow chart of the invention.
Figure number illustrates 1. pistons；2. cylinder sleeve；3. combustion chamber；4. lower electrode；5. top electrode；6. valve seating；7. valve
Head；8. conducting wire；9. valve stem；10. energization sliding block；11. valve guide bushing；12. spark plug.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
All other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
In conjunction with Fig. 1-Fig. 3；A kind of combustion-supporting driver of nonequilibrium plasma, including electrode, energization sliding block 10, valve seating 6,
Head portion that 7, valve stem 9 and valve guide bushing 11；The electrode includes top electrode 5 and lower electrode 4；The setting of top electrode 5 exists
On valve seating 6；And the top electrode 5 is connected to the ground by conducting wire；The lower electrode 4 is arranged at head portion that 7, and described
Lower electrode 4 is controlled to a power supply by conducting wire；The energization sliding block 10 is arranged on valve stem 9, and the energization sliding block 10 with
The valve guide bushing 11 is in contact；The valve guide bushing 11 is controlled to a power supply.
The top electrode 5 and 4 play of lower electrode are set as an annular electrode, and the top electrode 5 and the lower electrode 4
It is made of same material.
The conducting wire is embedded in inside valve.
4 other end of lower electrode is connected by conducting wire with energization sliding block 10.
Top electrode 5 can be controlled to a power supply the present invention by conducting wire in actual application, and the lower electrode 4 passes through
Conducting wire can be connected to the ground.
In conjunction with Fig. 4 and Fig. 5, a kind of control method of the combustion-supporting driver of nonequilibrium plasma at the beginning of induction stroke, when
When piston 1 is located at top of combustion chamber, head portion that 7 and valve seating 6 are in contact, and inlet valve is in close state；Induction stroke is opened
When the beginning, piston 1 is moved downward, and head portion that 7 moves downward simultaneously, is separated head portion that 7 and valve seating 6, is made at inlet valve
In opening state；When head portion that 7 and valve seating 6 separate, power supply starts to power under the control of control strategy, top electrode 5
Potential difference is formed between lower electrode 4, forms electric field, and the combustion-supporting driver of nonequilibrium plasma is started to work, and air is through valve
Enter combustion chamber 3 between head 7 and valve seating 6, and is ionized to when by between top electrode 5 and lower electrode 4 non-equilibrium etc.
Gas ions, then immediately enter combustion chamber, and reactivity is greatly improved；When induction stroke terminates, head portion that 7 is transported upwards
It is dynamic, the position of valve seating 6 is returned to, is closed head portion that 7 and valve seating 6, power outage, electric discharge terminate at this time, non-flat
Weighing apparatus Plasma Assisted Combustion driver stops working；At this time in 3 space of combustion chamber there are a large amount of high reaction activities it is non-equilibrium it is equal from
Daughter, when piston 1 runs to 3 near top of combustion chamber, by spark-discharge or by fuel injector oil spout, ignition process is opened
Begin.
The control strategy refers to, is powered when IO Intake Valve Opens；It is powered off when IC Intake Valve Closes.
The inlet valve refers to the entirety being made of head portion that 7 and valve stem 9.
Combuster 3 is set below the combustion-supporting driver of nonequilibrium plasma of the present invention；It is provided with below combustion chamber 3
The periphery of piston 1, combustion chamber 3 and piston 1 is provided with cylinder sleeve 2；The upper surface of combustion chamber 3, the combustion-supporting driver of nonequilibrium plasma
Side be provided with spark plug 12.
The foregoing describe basic principles and main features of the invention and advantages of the present invention；The technical staff of the industry answers
The understanding, the present invention is not limited to the above embodiments, and the above embodiments and description only describe of the invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these change and change
Into all fall within the protetion scope of the claimed invention, the claimed scope of the invention is by appended claims and its equivalent
It defines.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610508472.7A CN106089510B (en) | 2016-07-02 | 2016-07-02 | A kind of combustion-supporting driver of nonequilibrium plasma and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610508472.7A CN106089510B (en) | 2016-07-02 | 2016-07-02 | A kind of combustion-supporting driver of nonequilibrium plasma and control method |
Publications (2)
| Publication Number | Publication Date |
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| CN106089510A CN106089510A (en) | 2016-11-09 |
| CN106089510B true CN106089510B (en) | 2019-02-01 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024504B (en) * | 2017-03-27 | 2019-06-04 | 华侨大学 | A test device and test method for widening the lower limit of combustible gas combustion under plasma-assisted combustion |
| CN108104945B (en) * | 2017-05-16 | 2021-05-04 | 大连民族大学 | A two-stroke internal combustion engine electrode assembly |
| CN110195668B (en) * | 2019-02-26 | 2021-09-10 | 江苏大学 | System for improving combustion and emission of diesel engine |
| CN110094757B (en) * | 2019-04-25 | 2020-07-31 | 江苏大学 | Combustion system based on combination of electric control electromagnet and nano fuel oil |
| CN110344973B (en) * | 2019-07-29 | 2021-03-26 | 大连民族大学 | A nozzle using plasma excitation technology |
| CN110344974B (en) * | 2019-07-29 | 2021-03-26 | 大连民族大学 | Nozzle suitable for gas fuel and liquid fuel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101970848A (en) * | 2008-03-14 | 2011-02-09 | 创想科学技术工程株式会社 | Plasma device using valve |
| JP5071060B2 (en) * | 2007-11-13 | 2012-11-14 | トヨタ自動車株式会社 | Engine intake system |
| US9359990B2 (en) * | 2011-07-16 | 2016-06-07 | Imagineering, Inc. | Plasma generating device and internal combustion engine |
-
2016
- 2016-07-02 CN CN201610508472.7A patent/CN106089510B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5071060B2 (en) * | 2007-11-13 | 2012-11-14 | トヨタ自動車株式会社 | Engine intake system |
| CN101970848A (en) * | 2008-03-14 | 2011-02-09 | 创想科学技术工程株式会社 | Plasma device using valve |
| US9359990B2 (en) * | 2011-07-16 | 2016-06-07 | Imagineering, Inc. | Plasma generating device and internal combustion engine |
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| CN106089510A (en) | 2016-11-09 |
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