CN2361015Y - Three-polar pin spark plug - Google Patents
Three-polar pin spark plug Download PDFInfo
- Publication number
- CN2361015Y CN2361015Y CN 98228045 CN98228045U CN2361015Y CN 2361015 Y CN2361015 Y CN 2361015Y CN 98228045 CN98228045 CN 98228045 CN 98228045 U CN98228045 U CN 98228045U CN 2361015 Y CN2361015 Y CN 2361015Y
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- electrode
- utmost point
- insulator
- spark
- auxiliary electrode
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- Ignition Installations For Internal Combustion Engines (AREA)
- Spark Plugs (AREA)
Abstract
The utility model relates to an engine, particularly a spark plug used for the ignition of a petrol engine. The spark plug aims to solve the problems of short discharge spark and poor ignition effect of the existing spark plug. A three-polar pin spark plug comprises an electric casing 10 which is provided with an insulator 7 and forms the discharging spark gap, an electric center electrode 8, a connection screw rod 9 connected with the electric center electrode 8, at least one spaced auxiliary electrode 14 connected with the insulator and forming a discharging spark gap between the casing and the center electrode, and a lateral electrode 11 arranged on the casing and corresponding to the auxiliary electrode. The spark plug has long spark length, large fire core energy and small function of flame elimination of the electrode.
Description
The utility model relates to engine, particularly the spark plug used of gasoline engine ignition.
Existing more than 100 year history is so far still in widely used conventional ignition plug, one-sided polar spark plug is as shown in Figure 1 arranged, be bent to lateral electrode 5 above the central electrode, constitute in the front end of insulator 1 and the hot cell 6 between the housing 4 etc. by the insulator 1 of tubular, the central electrode 3 that matches with week in the insulator and joining wiring screw rod 2 thereof, the housing 4 that matches with the insulator periphery and joining one.Be contained in during use in the gasoline engine combustion chamber, connect with central electrode with electric pulse generator is electric with lead, housing is connected and ground connection with engine, thereby with insulator 1 separately, forms the discharge spark gap between central electrode 3 and lateral electrode 5.When the work of engine and igniter thereof, under the effect of the high voltage pulse that electric pulse generator took place, form ionization channels between central electrode and the lateral electrode, produce electric spark, compressed combustion mixture in the ignition engine combustion chamber.The major defect of this conventional ignition plug is: the first, and lateral electrode has covered electric spark, has limited the contact-making surface of discharge spark and combustion mixture, and absorbs energy, and spark is weakened, and causes mixture combustion incomplete; The second, arcing distance is short, common spark gap, and promptly the length of ionization channels is 0.6～0.9mm.During igniting, the part of gaseous mixture can absorb the heat in when discharge and because of ionization activates, produce chemical reaction, forms fire nuclear.In normal spark gap, the place that fiery karyomorphism becomes is generally near the lateral electrode place, and heat is absorbed by lateral electrode morely.Strengthen spark gap, the wall of lateral electrode is left in the place that fiery karyomorphism is become, and " the flame arrest effect " of lateral electrode reduces, and the spark energy loss reduces, and ignitability improves.But when spark gap was excessive, needed pulse voltage was also high, and when power supply can not be supplied required high voltage, then spark plug caught fire, and can not light combustion mixture.Spark gap is too small then opposite, and lateral electrode " flame arrest effect " strengthens, and the gaseous mixture absolute magnitude that is in gap location will reduce, and the heat that this partially mixed gas produced when burning is during less than the heat dissipation capacity of gaseous mixture towards periphery, and flame will be from horizontal blanking.Under the condition of supply voltage permission, always strengthen spark gap as much as possible, with economy that improves fuel oil and the discharge capacity that reduces harmful active gases.
In order to overcome the shortcoming of the one-sided polar spark plug of above-mentioned tradition, developed many side poles spark plug as shown in Figures 2 and 3.This spark is plugged with a plurality of lateral electrodes 5, thereby forms side formula air gap.Its advantage is, spark is not covered by lateral electrode during the discharge arcing, can not stopped that ground stretches forward, and the effect of electrode flame arrest reduces.But the same with the one-sided polar spark plug of tradition, its spark gap can not be too big, and spark length does not have big variation, thereby influenced the effect of discharge spark.
Given this, three utmost point pin spark plugs that provide a kind of discharge spark good are provided the purpose of this utility model.
The utility model is according to three utmost point needle-discharging principles, on the basis of existing spark plug, adopt the distance that increases between central electrode and the lateral electrode, and between central electrode and lateral electrode, be provided with and two electrodes at least one auxiliary electrode separately, constitute at least one group, every group of three utmost point needle-discharging devices for constituting by central electrode, auxiliary electrode, lateral electrode, form the spark gap of series connection, obtain a plurality of discharge sparks, realize its purpose with the length that increases spark.
Three utmost point pin spark plugs of the present utility model (referring to accompanying drawing 4,5), the central electrode (8) that comprises the housing (10) that insulator (7) arranged and form the conduction in discharge spark gap and conduction therebetween, have and insulator links and and housing and central electrode between form at least one auxiliary electrode (14) separately in discharge spark gap.
The lateral electrode (11) that is the straight-bar flat with the auxiliary electrode (14) that is aciculiform is one to one arranged on the above-mentioned housing.
Above-mentioned insulator end is connected with insulating case (13), and said auxiliary electrode and insulating case link.
Above-mentioned insulator (7) is tubular, and the interior week of insulator matches with central electrode (8) and joining wiring screw rod (9) thereof, and the periphery of insulator matches with the housing of tubular (10).
Above-mentioned auxiliary electrode (14) and lateral electrode (12) respectively are evenly equipped with three on the circumference that with central electrode (8) is the center of circle separately, constitute three group of three utmost point needle-discharging device, and the lateral electrode of every group three utmost point needle-discharging device, auxiliary electrode, central electrode can be located along the same line.The lateral electrode of every group three utmost point needle-discharging device and auxiliary electrode also can stagger on circumference 60 °.
Three utmost point needle-discharging electrode structures of the present utility model, when pulsed high-voltage imports central electrode into by wiring screw rod, form electric field between the lateral electrode of central electrode and zero potential, under the relay effect of auxiliary electrode, electric field distorts, under same voltage effect, striking distance increases, the ionization channels lengthening, thereby, obtain good discharge spark, and make and the utlity model has following advantage and effect:
When one, spark plug discharges arcing, gaseous mixture molecule in the engine chamber is fierce more because of the degree that ionization activates, ion and number of electrons increase severely because of chain reaction, the fire nuclear that forms has bigger energy, the flame arrest effect of electrode reduces greatly, and the high heat that spark produces makes gaseous mixture obtain burning fully.
Two, owing to the spark gap of the distance between central electrode and the lateral electrode much larger than the one-sided utmost point of tradition or many side poles spark plug, usually be about 5～6 times, the amount that makes it be present in the combustion mixture in the ionization channels is bigger, light the heat that this a part of combustion mixture produces, substantially exceed the heat that gaseous mixture on every side distributes, can make flame be able to bamboo telegraph, thereby make engine have high ignition performance.
Three, said structure of the present utility model, when spark plug sparking, the ionization channels between central electrode and the lateral electrode extends than conventional ignition plug, make discharge spark length big, the fiery nuclear energy that forms is big, and electrode " flame arrest effect " reduces, and gaseous mixture is fully burned.Help to reduce the specific fuel consumption of engine, improve fuel economy, reduce the discharge of harmful gases amount, improve the behavior in service of engine, make engine have characteristics such as easy startup, explosive force is strong, speed-raising is fast.
Below, the utility model is further described to use embodiment and accompanying drawing thereof again.
Brief description of drawings.
Fig. 1 is the structural representation of existing one-sided polar spark plug.
Fig. 2 is the structural representation of existing three side pole spark plug heads.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the structural representation of a kind of three utmost point pin spark plugs of the present utility model.
Fig. 5 is the vertical view of Fig. 4.
Embodiment 1
A kind of three utmost point pin spark plugs of the present utility model, as shown in drawings.Constitute by insulator, central electrode, housing, insulating case, auxiliary electrode etc.
Above-mentioned insulator 7 is the tubular ceramic structure of common spark plug insulator.
Above-mentioned central electrode 8 is the metal round rod body structure of common central electrode.The rear end of central electrode and the wiring screw rod of coaxial line 9 connect firmly and are integral, and are packed in the inner chamber of insulator 7, and make the front end of central electrode stretch out the front end of insulator.
Above-mentioned housing 10 is the metal cylinder structure of common spark-plug body, its periphery be shaped on can with the joining screw thread of engine, be solidly set on outside the insulator 7, annular chamber 11 is arranged between its front end and the insulator.At the front end of the annular of housing, solid welding has the three piece lateral electrodes 12 that are straight-bar aciculiform uniform in the annulus end, thereby makes between adjacent lateral electrode on circumference at a distance of 120 °.
Above-mentioned insulating case 13 is made the alumina porcelain cylindrical body, is inlaid in the annular chamber 11 between above-mentioned housing and insulator front end.
Above-mentioned auxiliary electrode 14, there are three, all make the stock needle unit, between the corresponding one by one front end and insulating case 13 that is inlaid in insulator 7 in uniform way of 12 one-tenth of three lateral electrodes, and form the discharge spark gaps, form another discharge spark gap with the central electrode 8 at center respectively with peripheral side electricity level, thereby, two discharge spark gaps form cascaded structure, and per two corresponding lateral electrodes 12 and auxiliary electrode 14 constitute one group of three utmost point needle-discharging device with central electrode 8 respectively, become three group of three utmost point needle-discharging device altogether.Organize in three utmost point needle-discharging devices at each, central electrode, auxiliary electrode, lateral electrode can become same straight line, also can be that lateral electrode staggers 60 ° with respect to auxiliary electrode on circumference.
In addition, the interior sealing of spark plug, middle sealing, outer seal configuration are all identical with traditional one-sided polar spark plug.
When the front end of housing 10 is not provided with lateral electrode 12, constitute three utmost point needle-discharging devices by the annular mouth edge of central electrode, auxiliary electrode and housing, become soft plug.
Claims (7)
1, three utmost point pin spark plugs, the central electrode (8) that comprises the housing (10) that insulator (7) arranged and form the conduction in discharge spark gap and conduction therebetween, it is characterized in that having and insulator links and and housing and central electrode between form at least one auxiliary electrode (14) separately in discharge spark gap.
2, three utmost point pin spark plugs as claimed in claim 1 is characterized in that the lateral electrode (11) that is the straight-bar flat with the auxiliary electrode (14) that is aciculiform is one to one arranged on the said housing.
3, three utmost point pin spark plugs as claimed in claim 1 is characterized in that said insulator end is connected with insulating case (13), and said auxiliary electrode and insulating case link.
4, three utmost point pin spark plugs as claimed in claim 2 is characterized in that said insulator end is connected with insulating case (13), and said auxiliary electrode and insulating case link.
5, as claim 1,2,3 or 4 described three utmost point pin spark plugs, it is characterized in that said insulator (7) is tubular, the interior week of insulator matches with central electrode (8) and joining wiring screw rod (9) thereof, and the periphery of insulator matches with the housing of tubular (10).
6, three utmost point pin spark plugs as claimed in claim 5, it is characterized in that said auxiliary electrode (14) and lateral electrode (12) respectively are evenly equipped with three on the circumference that with central electrode (8) is the center of circle separately, constitute three group of three utmost point needle-discharging device, and lateral electrode, auxiliary electrode, the central electrode of every group three utmost point needle-discharging device are located along the same line.
7, three utmost point pin spark plugs as claimed in claim 1, it is characterized in that said auxiliary electrode and lateral electrode respectively are evenly equipped with three on the circumference that with the central electrode is the center of circle separately, constitute three group of three utmost point needle-discharging device, and the lateral electrode of every group three utmost point needle-discharging device and auxiliary electrode stagger 60 ° on circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228045 CN2361015Y (en) | 1998-01-14 | 1998-01-14 | Three-polar pin spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228045 CN2361015Y (en) | 1998-01-14 | 1998-01-14 | Three-polar pin spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2361015Y true CN2361015Y (en) | 2000-01-26 |
Family
ID=33978244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228045 Expired - Fee Related CN2361015Y (en) | 1998-01-14 | 1998-01-14 | Three-polar pin spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2361015Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385758C (en) * | 2003-08-11 | 2008-04-30 | 黎培道 | Tripolar capacitive spark plug |
| CN102386562A (en) * | 2011-09-10 | 2012-03-21 | 李德国 | Durable spark plug |
| CN106025802A (en) * | 2016-06-28 | 2016-10-12 | 上海极燃汽车科技有限公司 | Multi-electrode sparking plug |
| CN107863689A (en) * | 2017-10-17 | 2018-03-30 | 奇瑞汽车股份有限公司 | A kind of spark plug |
| CN106654862B (en) * | 2017-02-28 | 2018-06-19 | 王以盘 | A kind of variable-pressure ring-type jetting tuype sparking-plugs |
-
1998
- 1998-01-14 CN CN 98228045 patent/CN2361015Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385758C (en) * | 2003-08-11 | 2008-04-30 | 黎培道 | Tripolar capacitive spark plug |
| CN102386562A (en) * | 2011-09-10 | 2012-03-21 | 李德国 | Durable spark plug |
| CN102386562B (en) * | 2011-09-10 | 2013-03-20 | 李德国 | Durable spark plug |
| CN106025802A (en) * | 2016-06-28 | 2016-10-12 | 上海极燃汽车科技有限公司 | Multi-electrode sparking plug |
| CN106654862B (en) * | 2017-02-28 | 2018-06-19 | 王以盘 | A kind of variable-pressure ring-type jetting tuype sparking-plugs |
| CN107863689A (en) * | 2017-10-17 | 2018-03-30 | 奇瑞汽车股份有限公司 | A kind of spark plug |
| CN107863689B (en) * | 2017-10-17 | 2020-10-09 | 奇瑞汽车股份有限公司 | Spark plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Li Zhijun Designer after: Zhang Xiaoliang Designer after: Yang Jie Designer before: Li Zhijun Designer before: Zhang Xiaoliang Designer before: Yang Jie |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shihao Industry Co., Ltd., Chengdu Patentee before: Shihao Industrial and Commercial Co., Ltd., Chengdu City |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |