CN106762331A - A kind of microwave radiation technology plug ignition method and its integrating device - Google Patents
A kind of microwave radiation technology plug ignition method and its integrating device Download PDFInfo
- Publication number
- CN106762331A CN106762331A CN201611163589.2A CN201611163589A CN106762331A CN 106762331 A CN106762331 A CN 106762331A CN 201611163589 A CN201611163589 A CN 201611163589A CN 106762331 A CN106762331 A CN 106762331A
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- CN
- China
- Prior art keywords
- microwave
- pulse
- ignition
- radiation technology
- technology plug
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P23/00—Other ignition
- F02P23/04—Other physical ignition means, e.g. using laser rays
- F02P23/045—Other physical ignition means, e.g. using laser rays using electromagnetic microwaves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/40—Sparking plugs structurally combined with other devices
Abstract
The invention discloses a kind of microwave radiation technology plug ignition method, the method comprises the following steps：Pulse signal is sent to ignition system, the ignition system is triggered and is produced pulse high-voltage；Pulse signal is sent to microwave system, the microwave pulse that the microwave system produces CF and certain power is triggered；The pulse high-voltage is loaded on the spark plug, and the thin combustion gas of arc over produces plasmoid；The microwave pulse radiation microwave energy expands the plasmoid, realizes the igniting of internal combustion engine lean burn.The invention also discloses a kind of microwave radiation technology plug ignition integrating device.The method of the present invention combine spark plug high-voltage discharge puncture and microwave to plasmoid couple energy advantage, the inventive system comprises ignition system and microwave system, under combustion chambers of internal combustion engines hyperbaric environment, realize the stable ignition of lean burn.
Description
Technical field
The present invention relates to field of internal combustion engine, more particularly, to a kind of microwave radiation technology plug ignition method and its integrated
Device.
Background technology
It is the increasingly harsh environmental regulation of reply and the petroleum resource consumption situation of sternness, internal-combustion engine engineering teacher needs not
The disconnected internal-combustion engine technology for being devoted to developing high-efficiency cleaning.Lean Burning Technique improves combustion using high air-fuel ratio and high compression ratio
Oily economy simultaneously improves exhaust emissions level, be most potential raising internal combustion engine thermal efficiency in internal combustion engine combustion system it
One.But internal combustion engine realize lean burn even ultra lean burn when, there are ignition difficulties, the problems such as flame propagation is unstable.It is logical
Traditional raising ignition energy method, DeGrain are crossed, and spark plug life can be shortened.
Current automobile-used ignition internal combustion engine is generally lighted a fire using spark plug, and plug ignition technology is led in internal combustion engine
The application in domain is very ripe.After internal combustion engine start, an instantaneous pulse high-voltage is applied (generally on spark plug
15000V), high field is formed between high-field electrode and earth electrode, arc through fuel gas mixture produces HTHP
Plasma spark so that realize igniting.But when air mixture equivalent proportion is smaller, i.e., when fuel oil is diluter, conventional spark plug
Mixed gas can only be punctured and form initial plasmoid, and the need for enough energy cannot be supplied to meet ignition process,
This results in the igniting of internal combustion engine lean burn and is encountered by difficulty.
, used as a kind of device of generation microwave, the application of (micro-wave oven) is also quite general in daily life for magnetron
Time.Microwave, can be to the electronics coupled energy of lighter weight in plasma, so that plasma used as a kind of frequency electromagnetic waves
And surrounding environment produces the influence in terms of thermodynamics and kineticses.Additionally, microwave meets metal material in spatial will send out
Raw reflection, and meeting nonmetallic materials such as glass etc. will penetrate, and also loss is little.
Patent document CN103470427A discloses a kind of microwave plasma ignition combustion system of internal combustion engine.System profit
With microwave igniter to the microwave pulse of feed-in CF in combustion chambers of internal combustion engines, microwave is set to occur in combustion chamber humorous
Shake, so as to produce a uniform highfield in space, to puncture fuel gas mixture and realize that space multiple spot catches fire, improve internal combustion
Machine lean burn combustibility.The system is intended substituting conventional ignition plug completely using microwave cavity igniting, should with certain
Use prospect.
But a kind of microwave plasma ignition combustion system of internal combustion engine is still deposited disclosed in patent document CN103470427A
Following not enough：
(1) to make microwave that resonance occurs in combustion in IC engine room, just must be to traditional classical combustion chambers of internal combustion engines configuration
Transformed to reach fit size, this not only improvement cost it is big, and the spraying and burning of internal combustion engine can be influenceed；
(2) under combustion chambers of internal combustion engines hyperbaric environment, microwave resonance is only relied on, is still difficult to stabilization and punctures thin combustion gas, made
Must light a fire unstable.
The content of the invention
For more than prior art not enough or Improvement requirement, the present invention provides a kind of microwave radiation technology plug ignition method
And its integrating device, it is intended that puncture with reference to spark plug high-voltage discharge and microwave to plasmoid couple energy
Advantage, realize the stable ignition of thin combustion gas.
To achieve these goals, according to one aspect of the present invention, there is provided a kind of microwave radiation technology plug ignition method,
The method comprises the following steps：
(1) pulse signal is sent to ignition system, triggers the ignition system and produce pulse high-voltage；
(2) send pulse signal to microwave system, trigger the microwave system and produce the micro- of CF and certain power
Wave impulse；
(3) pulse high-voltage is loaded on the spark plug, and the thin combustion gas of arc over produces plasma
Group；
(4) the microwave pulse radiation microwave energy expands the plasmoid, realizes the stable ignition of lean burn.
Further, the step (2) postpones or special time in advance compared with step (1).
Further, the pulse frequency of microwave pulse described in the pulse frequency of the microwave pulse is 10KHZ~20KHZ,
Utilization rate for improving the microwave pulse.
According to another aspect of the present invention, there is provided a kind of microwave radiation technology plug ignition integrating device, it is characterised in that
The device includes ignition system, microwave system and blender, and the ignition system and microwave system are realized by blender
It is integrated；
Wherein, the ignition system includes spray point end and earth electrode, and pulse high-voltage acts on the spray point
End, highfield is formed between spray point end and earth electrode and punctures lean mixture combustion gas formation initial plasma group；
The microwave system includes magnetron and driven by magnetron coil, and the driven by magnetron coil is used to produce driving
Pulse high-voltage signal needed for magnetron, the pulse high-voltage signal drives magnetron to produce the microwave arteries and veins of CF
Punching.
Further, the blender includes electric capacity, for preventing the pulse high-voltage from conducting to the microwave system.
Further, the blender also includes inductance, for preventing the microwave pulse from entering the ignition system.
Further, the microwave system also includes three pin tuners, for carrying out impedance matching, makes the microwave arteries and veins
Rush power loss minimum.
Further, the microwave system also includes transition waceguide, for the microwave pulse to be conducted into three pin
Nail tuner.
Further, the ignition system also includes specific dielectric, used as microwave pulse described in channel conductance, institute
Stating specific dielectric has optimal pattern length, can make microwave field most strong and sealing between spray point end and earth electrode
Can be optimal.
Further, the ignition system also includes central electrode, for conducting the pulse high-voltage signal to institute
State spray point end.
In general, by the contemplated above technical scheme of the present invention compared with prior art, can obtain down and show
Beneficial effect：
(1) puncture with reference to spark plug high-voltage discharge and advantage from microwave to plasmon coupling energy, structure of the present invention
The above technology of think of can realize the stable ignition to thin combustion gas under combustion chambers of internal combustion engines hyperbaric environment；
(2) the lean burn limit of existing spark-ignition type internal combustion engine is widened, without carrying out combustion chambers of internal combustion engines knot
The transformation of structure, such that it is able to inherit the advantage of original combustion in IC engine cell structure, and reduces cost of implementation.
(3) device specifically includes ignition system and microwave system, and the ignition system is hit using transient high voltage
Wear the lean mixture combustion gas in combustion chamber and produce hot plasma group, microwave system radiation microwave energy expand the grade from
Daughter group.The device under combustion chambers of internal combustion engines hyperbaric environment, can realize the stable ignition of thin combustion gas.
Brief description of the drawings
Fig. 1 is a kind of microwave radiation technology plug ignition integrating device schematic diagram of the embodiment of the present invention；
The knot of the spark plug head that Fig. 2 is related to for a kind of microwave radiation technology plug ignition integrating device of the embodiment of the present invention
Structure schematic diagram.
In all accompanying drawings, identical reference represents same structure element, wherein：1- vehicle powers, 2- Engine ECUs
Control system, 3- ignition coils, 4- blenders, 5- coaxial connectors, 6- spark plug 7- waveguide coaxial converters, the pins of 8- tri- are adjusted
Electrocardio in humorous device, 9- transition waceguides, 10- magnetrons, 11- driven by magnetron coil, 12- conductor casings, 13- dielectrics, 14-
Pole, 15- spray points end, 16- earth electrodes.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.As long as additionally, technical characteristic involved in invention described below each implementation method that
Conflict is not constituted between this can be just mutually combined.
Fig. 1 is a kind of microwave radiation technology plug ignition integrating device schematic diagram of the embodiment of the present invention.As shown in figure 1, should
Device includes vehicle power 1, Engine ECU control system 2, ignition coil 3, blender 4, coaxial connector 5, spark plug 6, ripple
Guiding coaxial converter 7, three pin tuners 8, transition waceguide 9, magnetron 10, driven by magnetron coil 11；
The knot of the spark plug head that Fig. 2 is related to for a kind of microwave radiation technology plug ignition integrating device of the embodiment of the present invention
Structure schematic diagram.As shown in Fig. 2 the device also includes conductor casing 12, dielectric 13, central electrode 14, spray point end 15, connects
Ground electrode 16.
During work, vehicle power 1 provides electric energy to ignition coil 3 and driven by magnetron coil 11 respectively；Engine ECU 2
Pulse signal B is sent to ignition coil 3, triggering ignition coil 3 produces pulse high-voltage direct current signal, pulse high-voltage direct current warp
Central electrode 14 acts on spray point end 15, highfield is formed between spray point end 15 and earth electrode 16 and is punctured thin mixed
Close combustion gas and form initial plasma group, through being retarded or advanced for certain hour, microwave is from central electrode 14 and metal shell 12
Between dielectric 13 pass through and to the plasmoid emittance for having produced；
On the other hand, the pulse signal A of CF, specific frequency are sent to driven by magnetron coil 11 from Engine ECU 2
The pulse signal A of rate has being retarded or advanced for certain hour, the pulse signal A triggering magnetrons of CF compared with pulse signal B
Driving coil 11 is produced and drives pulse high-voltage signal needed for magnetron 10, and the pulse high-voltage signal drives magnetron 10 to produce
The microwave pulse of raw 10KHz, microwave frequency is 2.45GHz, and is conducted by transition waceguide 7, and impedance is carried out by three pin tuners 8
Matching makes microwave power loss reduction, then microwave is converted to by coaxial cable biography by waveguide propagation by waveguide coaxial converter 9
Broadcast, then, microwave pulse signal forms collection after being processed with the blended device 4 of the pulse high-voltage direct current signal that ignition coil 3 is produced
Into signal, conducted by same cable, eventually through coaxial connector 5 and spark plug 6, enter into combustion chambers of internal combustion engines and act on
Air mixture.The microwave system makes the plasmoid and microwave to the microwave energy of feed-in nearby of sparking electrode in combustion chamber
The effect of intercoupling.Because the frequency of feed-in microwave is very high, the frequency of its alternating electric field for producing is also very high, and plasma
Mass of ion in body group is more much bigger than electronics so that ion is difficult to be accelerated by microwave electric field, therefore main in plasmoid
It is that electronics is accelerated by microwave electric field and obtains higher-energy.Then, high energy electron triggers a series of collisions, dissociates, excites etc. anti-
Igniting should be then realized to expand plasmoid and increase active group concentration.
Puncture lean mixture combustion gas under compared with elevated ambient pressures present invention incorporates conventional ignition plug and produce plasmoid
Advantage, by being rolled into a ball to spark-discharge plasma in radiate microwave energy come auxiliary plasma group extend and strengthen lighting a fire
Journey, then expands the lean flammability limit of ignition internal combustion engine, on the premise of internal combustion engine conventional structure form is not changed, can significantly carry
Rise the lean burn performance of internal combustion engine.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (10)
1. a kind of microwave radiation technology plug ignition method, it is characterised in that the method comprises the following steps：
(1) pulse signal is sent to ignition system, triggers the ignition system and produce pulse high-voltage；
(2) pulse signal is sent to microwave system, triggers the microwave arteries and veins that the microwave system produces CF and certain power
Punching；
(3) pulse high-voltage is loaded on the spark plug, and the thin combustion gas of arc over produces plasmoid；
(4) the microwave pulse radiation microwave energy expands the plasmoid, realizes the stable ignition of lean burn.
2. a kind of microwave radiation technology plug ignition method according to claim 1, it is characterised in that the step (2) compared with
Step (1) delay or in advance special time.
3. a kind of microwave radiation technology plug ignition method according to claim 1, it is characterised in that the microwave pulse
Pulse frequency is 10KHZ~20KHZ, the utilization rate for improving the microwave pulse.
4. a kind of microwave radiation technology plug ignition integrating device, it is characterised in that the device includes ignition system, microwave system
And blender (4), the ignition system and microwave system are realized integrated by blender (4)；
Wherein, the ignition system includes spray point end (15) and earth electrode (16), and pulse high-voltage acts on described putting
Acusector end (15), between spray point end (15) and earth electrode (16) formed highfield and puncture lean mixture combustion gas formed just
Beginning plasmoid；
The microwave system includes magnetron (10) and driven by magnetron coil (11), and the driven by magnetron coil (11) is used for
The pulse high-voltage signal needed for driving magnetron (10) is produced, it is special that the pulse high-voltage signal drives magnetron (10) to produce
Determine the microwave pulse of frequency.
5. a kind of microwave radiation technology plug ignition method according to claim 4, it is characterised in that the blender (4)
Including electric capacity, for preventing the pulse high-voltage from conducting to the microwave system.
6. a kind of microwave radiation technology plug ignition method according to claim 4 or 5, it is characterised in that the blender
(4) inductance is also included, for preventing the microwave pulse from entering the ignition system.
7. a kind of microwave radiation technology plug ignition method according to any one of claim 4-6, it is characterised in that described
Microwave system also includes three pin tuners (8), for carrying out impedance matching, makes the microwave pulse power loss reduction.
8. a kind of microwave radiation technology plug ignition method according to any one of claim 4-7, it is characterised in that described
Microwave system also includes transition waceguide (9), for the microwave pulse to be conducted into the three pins tuner (8).
9. a kind of microwave radiation technology plug ignition method according to any one of claim 4-8, it is characterised in that described
Ignition system also includes specific dielectric (13), as microwave pulse described in channel conductance, the specific dielectric
(13) with optimal pattern length, can make between spray point end and earth electrode that microwave field is most strong and sealing property is optimal.
10. a kind of microwave radiation technology plug ignition method according to any one of claim 4-9, it is characterised in that institute
Stating ignition system also includes central electrode (14), for conducting the pulse high-voltage signal to the spray point end (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163589.2A CN106762331B (en) | 2016-12-16 | 2016-12-16 | A kind of microwave-assisted plug ignition method and its integrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163589.2A CN106762331B (en) | 2016-12-16 | 2016-12-16 | A kind of microwave-assisted plug ignition method and its integrating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762331A true CN106762331A (en) | 2017-05-31 |
| CN106762331B CN106762331B (en) | 2019-03-05 |
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ID=58892770
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611163589.2A Active CN106762331B (en) | 2016-12-16 | 2016-12-16 | A kind of microwave-assisted plug ignition method and its integrating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111022240A (en) * | 2018-10-10 | 2020-04-17 | 罗森伯格高频技术有限公司 | Ignition system with a prechamber and a spark plug ignition spark amplified by a high-frequency plasma, and corresponding method |
| CN113483344A (en) * | 2021-07-09 | 2021-10-08 | 陕西青朗万城环保科技有限公司 | Microwave-enhanced heat-storage combustion waste gas treatment method and device |
| CN113543444A (en) * | 2021-07-09 | 2021-10-22 | 陕西青朗万城环保科技有限公司 | Microwave-induced metal discharge combustion-supporting method and control system thereof |
| CN113543444B (en) * | 2021-07-09 | 2024-04-19 | 陕西青朗万城环保科技有限公司 | Microwave-induced metal discharge combustion-supporting method and control system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111022240A (en) * | 2018-10-10 | 2020-04-17 | 罗森伯格高频技术有限公司 | Ignition system with a prechamber and a spark plug ignition spark amplified by a high-frequency plasma, and corresponding method |
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| CN113483344A (en) * | 2021-07-09 | 2021-10-08 | 陕西青朗万城环保科技有限公司 | Microwave-enhanced heat-storage combustion waste gas treatment method and device |
| CN113543444A (en) * | 2021-07-09 | 2021-10-22 | 陕西青朗万城环保科技有限公司 | Microwave-induced metal discharge combustion-supporting method and control system thereof |
| CN113543444B (en) * | 2021-07-09 | 2024-04-19 | 陕西青朗万城环保科技有限公司 | Microwave-induced metal discharge combustion-supporting method and control system thereof |
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| Publication number | Publication date |
|---|---|
| CN106762331B (en) | 2019-03-05 |
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