CN1556564A - Ultra high energy spark plug - Google Patents
Ultra high energy spark plug Download PDFInfo
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- CN1556564A CN1556564A CNA200310122034XA CN200310122034A CN1556564A CN 1556564 A CN1556564 A CN 1556564A CN A200310122034X A CNA200310122034X A CN A200310122034XA CN 200310122034 A CN200310122034 A CN 200310122034A CN 1556564 A CN1556564 A CN 1556564A
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Abstract
The invention relates to a superenergy spark plug applied to a combustion engine firing system. It is mainly made up of shell, side electrode, and insulator. The lower part of the side electrode is a discharging end. A high voltage electrode and a superenergy electrode are arranged in the shell, the two electrodes and the shell are separated with insulators. The distribution method of the superenergy electrode and the high voltage electrode may adopt several methods. The discharging step is divided into discharging of high voltage electrode and the discharging of superenergy electrode. The superenergy discharging spark is generated between the superenergy electrode and the side electrode through the gas plasma generated by the high voltage discharging, the single time discharging energy can reach above 20 joules. The invention can enlarge the combustion limit of mixed gas in the engine cylinder, thus achieves the aim reducing the discharging of engine and upgrading the economy of the engine.
Description
Technical field
The present invention relates to the used spark plug technology of a kind of ignition system of internal combustion engine.
Background technology
The spark plug that present ignition system of internal combustion engine is used, form by housing, central electrode and lateral electrode, its middle shell and lateral electrode are made one by welding, are insulator between housing and central electrode, and the lower end of central electrode and lateral electrode is electrode discharge end separately.During work,, make the gas between central electrode and the lateral electrode discharge end breakdown, produce sparkover central electrode input pulse high-voltage signal (voltage reaches more than 10000 volts).The shortcoming of this kind firing technique is that the sparkover energy can only reach in 100 milli Jiao.The reason of restriction spark plug discharge energy is: puncture two gases between the electrode discharge end, the relation of being inversely proportional between the output current of the high-tension electricities of needs more than 10,000 volts, and the employed element that boosts of generation high electric field pulse---high-tension coil and the output voltage.Therefore can't accomplish high voltage and big electric current simultaneously, discharge power is restricted like this.Because discharge energy is limited, the Weak mixture of this spark plug in can not the ignition engine cylinder is not suitable for the engine application at lean burn.But the combustion process that the engine of lean burn can be realized efficiently, clean is the developing direction of following internal combustion engine.
Summary of the invention
The objective of the invention is to provide a kind of extrahigh energy spark plug, make spark plug can utilize the high-voltage breakdown spark plug gap, can realize heavy-current discharge again, thereby the energy of discharge pulse is risen significantly.
Know-why of the present invention is: a discharge process of present spark plug high-voltage breakdown electrode gap is decomposed into: the high-voltage breakdown electrode gap also produces plasma, and then these two processes of high-energy discharge of igniting.Since the high-energy discharge process need not be very high voltage (1000V-3000V), need not adopt simultaneously the pulsed electronic component (for example high-tension coil that uses at present) that boosts, therefore can realize the purpose of big electric current high-energy discharge.To achieve these goals, proposed following design: the extrahigh energy spark plug is made up of housing 1, lateral electrode 2, insulator 3, and insulator 3 is positioned at housing 1 inside, and the lower end of lateral electrode 2 is lateral electrode discharge ends 4.Characteristic point is: a high-field electrode 5 and a high energy electrode 6 are arranged in housing 1 inside, separate by insulator 3 between high-field electrode 5, high energy electrode 6 and shell 1 three, upper end at insulator 3, one extension 7 is arranged, its length is greater than 10mm, and the lower end of high-field electrode 5 is high-field electrode discharge ends 8, and the lower end of high energy electrode 6 is high energy electrode discharge ends 9, distance between high-field electrode discharge end 8 and the lateral electrode discharge end 4 is less than the distance between high-field electrode discharge end 8 and the high energy electrode discharge end 9.Purpose is after high electric field pulse of high-field electrode input 10 inputs, at first between high-field electrode discharge end 8 and lateral electrode discharge end 4, produce sparkover, plasma that is produced and then the high-energy discharge process between high energy electrode discharge end 9 and the lateral electrode discharge end 4 of igniting.
Description of drawings
Below in conjunction with accompanying drawing and two embodiment the present invention is described in further details.
Fig. 1 is the structure chart of an embodiment of extrahigh energy spark plug.
Fig. 2 is in the foregoing description, the schematic diagram of flashing discharge between high-field electrode discharge end and the lateral electrode discharge end 4.
Fig. 3 is in the foregoing description, and the schematic diagram of high-energy spark discharge takes place between high energy electrode discharge end 9 and the lateral electrode discharge end 4.
Fig. 4 is the spark plug configuration figure of another embodiment.
Embodiment
As shown in Figure 1, the extrahigh energy spark plug is made up of housing 1, lateral electrode 2, insulator 3, and its middle shell 1 and lateral electrode 2 are by being welded and fused.Insulator 3 is positioned at housing 1 inside, and the bottom of housing 1 has one rib-loop 11 is installed, and the lower end of lateral electrode 2 is lateral electrode discharge ends 4.In housing 1 inside, a high-field electrode 5 and a high energy electrode 6 are arranged, separate by insulator 3 between high-field electrode 5, high energy electrode 6, shell 1 three.The lower end of high-field electrode 5 is high-field electrode discharge ends 8, and the upper end is a high-field electrode input 10.The lower end of high energy electrode 6 is high energy electrode discharge ends 9, and the upper end is a high energy electrode input 12.Distance between high-field electrode discharge end 8 and the lateral electrode discharge end 4 is less than the distance between high-field electrode discharge end 8 and the high energy electrode discharge end 9.High energy electrode 6 is shaped as a cylinder, is arranged in the center of discharge plug, and the shape of high-field electrode 5 is hollow cylindrical tube, is enclosed within the outside of high energy electrode 6.Insulator 3 used materials belong to high temperature ceramic material, and present embodiment is made with alumina ceramic material.The material of lateral electrode discharge end 4, high-field electrode discharge end 8, high energy electrode discharge end 9 these three discharge ends is made by refractory metal material, and present embodiment uses the nickel metal.Discharge between high-field electrode input 10 and high energy electrode input 12, in the upper end of insulator 3, extend cylinder 7, play buffer action, its length must be greater than 10mm.In order to reduce the gas leak phenomenon of spark plug, between insulator 3 and housing 1, a gasket seal 13 is arranged.
The discharge process that the present invention realized divides two steps---high-field electrode discharge process and high energy electrode discharge process.Fig. 2 is in the foregoing description, the schematic diagram of flashing discharge between high-field electrode discharge end 8 and the lateral electrode discharge end 4.Spark-plug shell 1 is by rib-loop 11 ground connection, between high energy electrode 6 and ground and electric capacity 14 arranged, before the discharge, power supply 15 charges to electric capacity earlier, electric capacity both end voltage after the charging is less than the self-breakdown voltage between high energy electrode discharge end 9 and the lateral electrode discharge end 4, concrete voltage is between 1000 volts to 3000 volts, and this moment, spark plug was in wait state.If at high electric field pulse 18 of high-field electrode input 10 inputs, the spark 16 of a little energy at first appears between high-field electrode discharge end 5 and lateral electrode discharge end 4, and this process is equivalent to common spark plug discharge process.In this discharge process, can produce many gaseous plasmas, under the effect of this plasma, produce high-energy discharge spark 17 between high energy electrode discharge end 9 and the lateral electrode discharge end 4, be stored in the electric energy in the electric capacity 14, in the extremely short time, discharge, as shown in Figure 3.The single energy of this discharge process can reach more than 20 joules.
In the enforcement, high energy electrode 6 can be taked various ways with the arrangement form of high-field electrode 5, such as the position of the high-field electrode among Fig. 15 and the position of high energy electrode 6 being exchanged, that is: high-field electrode 5 is shaped as a cylinder, be arranged on the center of spark plug, the shape of high energy electrode 6 is hollow cylindrical tube, is enclosed within the outside of high-field electrode 5.The position of lateral electrode discharge end 4 also needs to be adjusted accordingly, and makes it to meet distance between high-field electrode discharge end 10 and the lateral electrode discharge end 4 less than the requirement of distance between high-field electrode discharge end 8 and the high energy electrode discharge end 9.
Fig. 4 is another kind of execution mode: the shape of high-field electrode 5 and high energy electrode 6 all is cylinders, must meet distance between high-field electrode discharge end 8 and the lateral electrode discharge end 4 equally less than the requirement of distance between high-field electrode discharge end 8 and the high energy electrode discharge end 9.Discharge between high-field electrode 5 inputs 10 and high energy electrode input 12, in the upper end of insulator 3, extend cylinder 7, its length equally need be greater than 10mm.High energy electrode input 1 is designed to elbow structure, is convenient to be connected with control line.Certainly high-field electrode 5 among Fig. 4 and the position between the high energy electrode 6 also can be exchanged, adjust lateral electrode discharge end 4 positions simultaneously, make it to meet distance between high-field electrode discharge end 8 and the lateral electrode discharge end 4 less than the requirement of distance between high-field electrode discharge end 8 and the high energy electrode discharge end 9.
Experimental results show that, extrahigh energy spark plug proposed by the invention, can reach the above pulse discharging energy of 20J, can enlarge the lean burn limit of gaseous mixture in the engine cylinder significantly, thereby play the purpose that reduces engine emission and improve the engine economy.
Claims (6)
1. extrahigh energy spark plug, mainly by housing 1, lateral electrode 2, insulator 3 is formed, the lower end of lateral electrode 2 is lateral electrode discharge ends 4, it is characterized in that: a high-field electrode 5 and a high energy electrode 6 are arranged in housing 1 inside, high-field electrode 5, separate by insulator 3 between high energy electrode 6 and shell 1 three, upper end at insulator 3, one extension 7 is arranged, its length is greater than 10mm, the lower end of high-field electrode 5 is high-field electrode discharge ends 8, the lower end of high energy electrode 6 is high energy electrode discharge ends 9, and the distance between high-field electrode discharge end 8 and the lateral electrode discharge end 4 is less than the distance between high-field electrode discharge end 8 and the high energy electrode discharge end 9.
2. extrahigh energy spark plug according to claim 1 is characterized in that: high energy electrode 6 is shaped as a cylinder, is arranged on the center of spark plug, and the shape of high-field electrode 5 is hollow cylindrical tube, is enclosed within the outside of high energy electrode 6.
3. extrahigh energy spark plug according to claim 1 is characterized in that: high-field electrode 5 shapes also can be a cylinder, are arranged on the center of spark plug, and the shape of high energy electrode 6 then is a hollow cylindrical tube, are enclosed within the outside of high-field electrode 5.
4. according to claim 2 or 3 described extrahigh energy spark plugs, it is characterized in that: the shape of described high-field electrode 5 and high energy electrode 6 all can be cylinder.
5. extrahigh energy spark plug according to claim 1 is characterized in that: the material of lateral electrode discharge end 4, high-field electrode discharge end 8, high energy electrode discharge end 9 these three discharge ends is made by refractory metal material.
6. extrahigh energy spark plug according to claim 5 is characterized in that described exotic material can be a metallic nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200310122034XA CN1556564A (en) | 2003-12-31 | 2003-12-31 | Ultra high energy spark plug |
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| CNA200310122034XA CN1556564A (en) | 2003-12-31 | 2003-12-31 | Ultra high energy spark plug |
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Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310422B (en) * | 2005-11-14 | 2012-06-20 | 雷诺股份公司 | Sparkplug for an internal combustion engine |
| CN106677899A (en) * | 2015-11-06 | 2017-05-17 | 李扬远 | Energy-saving type vehicle-using pure electric arc engine technology |
| CN109083797A (en) * | 2018-10-26 | 2018-12-25 | 大连民族大学 | A kind of plasma igniter with outlet inclined hole and multianode structure |
| CN109162853A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of double discharge mode plasma igniters |
| CN109162852A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | Double discharge mode plasma igniters with multianode structure |
| CN109162854A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of control method of double discharge mode plasma igniters |
| CN109185005A (en) * | 2018-10-26 | 2019-01-11 | 大连民族大学 | A kind of plasma igniter application method with fuel channel |
| CN109209724A (en) * | 2018-10-26 | 2019-01-15 | 大连民族大学 | A kind of plasma igniter with double air inlets and Double-positive-pole structure |
| CN109209725A (en) * | 2018-10-26 | 2019-01-15 | 大连民族大学 | A kind of plasma igniter with Double-positive-pole structure |
| CN109253019A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter application method with flaring grounding electrode export structure |
| CN109253030A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with air inlet inclined hole and eccentric Double-positive-pole structure |
| CN109253026A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of double discharge plasma igniters with double air inlet Double-positive-pole structures |
| CN109253025A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | Double discharge mode plasma igniters with eccentric Double-positive-pole structure |
| CN109253021A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | Double discharge mode plasma igniters with combined anode structure |
| CN109253029A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with flaring grounding electrode export structure |
| CN109253023A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with double air inlet multianode structures |
| CN109253027A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with hollow vent electrode and multianode structure |
| CN109253017A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter working method with double inlet structures |
| CN109253022A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of double discharge plasma igniters with double air inlet multianode structures |
| CN109268187A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of double plasma discharging igniters of double air inlets |
| CN109268189A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of plasma igniter application method with air duct and fuel channel |
| CN109268188A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of plasma igniter control method with multianode structure |
| CN109268191A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of double discharge plasma igniters with double air inlet bias anode constructions |
| CN109268190A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of plasma igniter with the double discharge modes of double air inlets |
| CN109340016A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | A kind of plasma igniter with double air inlets and eccentric Double-positive-pole structure |
| CN109340014A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | A kind of double discharge mode plasma igniter working methods with single fuel inlet |
| CN109340018A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | A kind of plasma igniter of double air inlets and multianode structure |
| CN109340017A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | It is a kind of with it is combustion-supporting with igniting double working modes Plasma Assisted Combustion drivers |
| CN109404197A (en) * | 2018-10-26 | 2019-03-01 | 大连民族大学 | A kind of igniter with double air inlet bias Double-positive-pole structures |
| CN109441690A (en) * | 2018-10-26 | 2019-03-08 | 隆成利达（大连）科技有限公司 | Double discharge mode plasma igniters |
| CN109441689A (en) * | 2018-10-26 | 2019-03-08 | 大连民族大学 | A kind of igniter working method with fuel channel and hollow anode structure |
| CN109458285A (en) * | 2018-10-26 | 2019-03-12 | 隆成利达（大连）科技有限公司 | Ignition method with ring-column Double-positive-pole structure double ioinization mode plasma igniter |
| CN109458286A (en) * | 2018-10-26 | 2019-03-12 | 大连民族大学 | A kind of igniter working method with fuel channel and air inlet inclined hole |
-
2003
- 2003-12-31 CN CNA200310122034XA patent/CN1556564A/en active Pending
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310422B (en) * | 2005-11-14 | 2012-06-20 | 雷诺股份公司 | Sparkplug for an internal combustion engine |
| CN106677899A (en) * | 2015-11-06 | 2017-05-17 | 李扬远 | Energy-saving type vehicle-using pure electric arc engine technology |
| CN109083797A (en) * | 2018-10-26 | 2018-12-25 | 大连民族大学 | A kind of plasma igniter with outlet inclined hole and multianode structure |
| CN109162853A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of double discharge mode plasma igniters |
| CN109162852A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | Double discharge mode plasma igniters with multianode structure |
| CN109162854A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of control method of double discharge mode plasma igniters |
| CN109185005A (en) * | 2018-10-26 | 2019-01-11 | 大连民族大学 | A kind of plasma igniter application method with fuel channel |
| CN109209724A (en) * | 2018-10-26 | 2019-01-15 | 大连民族大学 | A kind of plasma igniter with double air inlets and Double-positive-pole structure |
| CN109209725A (en) * | 2018-10-26 | 2019-01-15 | 大连民族大学 | A kind of plasma igniter with Double-positive-pole structure |
| CN109253019A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter application method with flaring grounding electrode export structure |
| CN109253030A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with air inlet inclined hole and eccentric Double-positive-pole structure |
| CN109253026A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of double discharge plasma igniters with double air inlet Double-positive-pole structures |
| CN109253025A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | Double discharge mode plasma igniters with eccentric Double-positive-pole structure |
| CN109253021A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | Double discharge mode plasma igniters with combined anode structure |
| CN109253029A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with flaring grounding electrode export structure |
| CN109253023A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with double air inlet multianode structures |
| CN109253027A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter with hollow vent electrode and multianode structure |
| CN109253017A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of plasma igniter working method with double inlet structures |
| CN109253022A (en) * | 2018-10-26 | 2019-01-22 | 大连民族大学 | A kind of double discharge plasma igniters with double air inlet multianode structures |
| CN109268187A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of double plasma discharging igniters of double air inlets |
| CN109268189A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of plasma igniter application method with air duct and fuel channel |
| CN109268188A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of plasma igniter control method with multianode structure |
| CN109268191A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of double discharge plasma igniters with double air inlet bias anode constructions |
| CN109268190A (en) * | 2018-10-26 | 2019-01-25 | 大连民族大学 | A kind of plasma igniter with the double discharge modes of double air inlets |
| CN109340016A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | A kind of plasma igniter with double air inlets and eccentric Double-positive-pole structure |
| CN109340014A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | A kind of double discharge mode plasma igniter working methods with single fuel inlet |
| CN109340018A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | A kind of plasma igniter of double air inlets and multianode structure |
| CN109340017A (en) * | 2018-10-26 | 2019-02-15 | 大连民族大学 | It is a kind of with it is combustion-supporting with igniting double working modes Plasma Assisted Combustion drivers |
| CN109404197A (en) * | 2018-10-26 | 2019-03-01 | 大连民族大学 | A kind of igniter with double air inlet bias Double-positive-pole structures |
| CN109441690A (en) * | 2018-10-26 | 2019-03-08 | 隆成利达（大连）科技有限公司 | Double discharge mode plasma igniters |
| CN109441689A (en) * | 2018-10-26 | 2019-03-08 | 大连民族大学 | A kind of igniter working method with fuel channel and hollow anode structure |
| CN109458285A (en) * | 2018-10-26 | 2019-03-12 | 隆成利达（大连）科技有限公司 | Ignition method with ring-column Double-positive-pole structure double ioinization mode plasma igniter |
| CN109458286A (en) * | 2018-10-26 | 2019-03-12 | 大连民族大学 | A kind of igniter working method with fuel channel and air inlet inclined hole |
| CN109162854B (en) * | 2018-10-26 | 2021-05-04 | 大连民族大学 | Control method of plasma igniter with double discharge modes |
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