CN103427337A - Sparking plug of ethyl alcohol-gasoline flexible fuel engine - Google Patents
Sparking plug of ethyl alcohol-gasoline flexible fuel engine Download PDFInfo
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- CN103427337A CN103427337A CN2013103558693A CN201310355869A CN103427337A CN 103427337 A CN103427337 A CN 103427337A CN 2013103558693 A CN2013103558693 A CN 2013103558693A CN 201310355869 A CN201310355869 A CN 201310355869A CN 103427337 A CN103427337 A CN 103427337A
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- electrode
- spark plug
- noble metal
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- 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
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
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- 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
- H01T13/02—Details
- H01T13/16—Means for dissipating heat
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Abstract
The invention provides a sparking plug of an ethyl alcohol-gasoline flexibly proportioned fuel engine. A metal casing is positioned at the front end of a sparking plug body, a central electrode is located in the metal casing, an insulator is located between the central electrode and the metal casing, a side electrode is welded on one side of a front port of the metal casing, precious metal electrodes are welded on one side of the side electrode and at the top of the central electrode, and the side of the side electrode is near the central electrode. The horizontal width of the side electrode is longer than the vertical length of the side electrode, so that heat in an engine cylinder can be well transmitted, and the side electrode itself can be protected from being ablated by high temperatures; the side electrode is shorter than ordinary engine sparking plugs, and heat conduction effects of the side electrode are better; and the precious metal electrodes are located on the side electrode and the central electrode respectively, the size and the width of the precious metal electrodes are the same, and heat lost during ignition of the sparking plug is reduced.
Description
Technical field
Patent of the present invention relates to the automotive engine ignition system technical field, particularly a kind of for ethanol-gasoline flexibly ratio engine spark plug.
Background technology
Spark plug is widely used in the engine of automobile, the function of spark plug is that the high voltage pulse electric energy that ignition coil is passed over is discharged, the interelectrode air of disruptive spark plug two, produce electric spark, with the mist in this ignition engine cylinder, promote the piston acting and make engine running.The lateral electrode of spark plug is generally bar material, utilizes professional welding equipment to be welded on the spark-plug body port, and bending metal side electrode forms ignition gap to the central electrode upright position with central electrode.
Chinese Patent Application No. is 200580007335 to disclose a kind of spark plug configuration with metal noble tip, and as shown in Figure 1, the front end of spark plug body 5 (both bottoms in figure) gos deep into cylinder, is the ignition operation position.Between central electrode 2 and lateral electrode 3, it is spark gap.Central electrode 2 outsides are insulator 4, and insulator 4 outsides are metal shell 1.Generally, it is L shaped that lateral electrode 3 is that 2 bar materials bend to, and is welded on a side of the front port of metal shell 1.As seen from Figure 1, insulator 4 has part exposed in metal shell 1 outside in the axial direction.
Although the performance such as high temperature resistant, corrosion-resistant that use to metal noble tip can improve spark plug is disclosed, because between two electrodes of this technical scheme, heat-energy losses is larger, can not be for the igniting requirement of alcohol-gasoline fuel.
The clean energy resource industrial expansion, used the alcohol fuel of biomaterial production more prevalent at present; Adopt the automobile of alcohol fuel to there is good discharge performance, dynamic property and economy because of it, be familiar with and paid attention to by people just gradually.Because the ethanol fuel engine ignition temperature is high than petrol engine, the alcohol fuel spark plug requires higher to heat dispersion.The heat that the heat-flash that during spark plug work, the firing tip lateral electrode produces and engine combustion produce must be derived rapidly life-span and the work quality of guarantee spark plug.From the research to ethanol fuel engine, existing spark plug metal electrode heat-conducting effect is general, and easily in the situation that the phenomenon of ethanol burning ablation, and the reason of ablation is the poor heat conduction of electrode own.
Simultaneously, due to ethanol---the gasoline flexibly engine fuel has been used alcohol fuel, and the energy lost during the igniting of its engine is higher, to the time of ignition pilot spark to require usefulness to require higher.So the structure of spark plug need to be improved, to meet ethanol---the ignition energy that gasoline flexibly engine fuel time of ignition is higher guarantees the reliability requirement under high load capacity simultaneously.
Summary of the invention
The purpose of patent of the present invention is; by the improvement to the prior art scheme, provide a kind of heat conduction faster and better, can effectively protect central electrode; be not prone to the spark plug of spark-plug side electrode ablation phenomen, and when plug ignition the little spark plug of energy loss.
The present invention is achieved by the following technical solutions:
Ethanol---gasoline flexibly engine fuel spark plug comprises: metal shell, central electrode, lateral electrode, insulator, spark plug body and noble metal electrode;
Described metal shell is positioned at described spark plug body front end, described central electrode is positioned at described metal shell, described insulator is between described central electrode and described metal shell, described lateral electrode is arranged on metal shell front port one side, and described noble metal electrode is arranged on lateral electrode near central electrode side and central electrode top;
The horizontal width of described lateral electrode is long than vertical direction, can increase the heat in better transmission engine cylinder, and protection lateral electrode itself is not by high temperature ablation;
Described noble metal electrode is arranged at respectively on lateral electrode and central electrode, and its outer surface diameter equates, and the line at outer surface center overlaps with the spark plug body center line;
The described noble metal electrode be arranged on lateral electrode is arranged at the top of the horizontal component of lateral electrode, the outer surface of this noble metal electrode approaches and overlaps with the end line of lateral electrode horizontal component, its effect is to improve the lateral electrode heat-conducting effect, and reduces heat-energy losses when igniting.
The front end face of described metal shell be D1 to noble metal electrode outer face distance on central electrode, and between two noble metal electrode opposing end surfaces, apart from being D2, the horizontal component thickness of lateral electrode is D3, and, D1 > D3, D2<D3, D3+D2 > D1.
The front end face of described metal shell is concordant with the front end face of described insulator.
The front end face of described metal shell is between 1.5mm-3.5mm to noble metal electrode outer face distance B 1 on central electrode.
Between two noble metal electrode opposing end surfaces, distance B 2 is between 0.6mm-0.9mm.
The horizontal component thickness D3 of lateral electrode is between 1.0mm-1.5mm.
The beneficial effect of the technical program is:
1, the size of less noble metal electrode, the particularly use of lateral electrode one side noble metal electrode, the noble metal electrode of lateral electrode side and central electrode side is measure-alike.The size that reduces noble metal electrode can effectively reduce the antiinflammation of engine igniting time, and the energy while avoiding lighting a fire is by the excessive absorption of noble metal electrode.
2, the thickness of spark-plug side electrode is little than central electrode length, and the length of lateral electrode changes can reduce the consumption of engine igniting time to ignition energy equally, guarantees ethanol---gasoline flexibly engine fuel igniting smooth ignition.
3, the ignition gap of this spark plug is little than lateral electrode thickness than lateral electrode length, can under the prerequisite that does not promote the engine ignition energy, increase the energy of plug ignition.Central electrode length is less than ignition gap and lateral electrode thickness sum.The overall dimensions conventional engines spark plug of lateral electrode is little, has guaranteed the heat transfer property of spark-plug side electrode under the large loading condiction of engine.
The accompanying drawing explanation
Fig. 1 is prior art engine spark plug structural representation;
Fig. 2 is structural representation of the present invention;
Fig. 3 is noble metal electrode structural representation of the present invention;
The structural representation that Fig. 4 is electrode part of the present invention.
Embodiment
Below describe technical scheme of the present invention in detail by specific embodiment, should be understood that, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
As shown in Figure 2 to Figure 3, ethanol---gasoline flexibly engine fuel spark plug comprises: metal shell 1, central electrode 2, lateral electrode 3, insulator 4, spark plug body 5.
Metal shell 1 is positioned at described spark plug body 5 front ends, and what metal shell 1 can be according to engine need to be that 10mm or 14mm etc. are changed to the external diameter of housing.Central electrode is positioned at described metal shell; the material of central electrode is not the claimed scope of the application; because can all can realize in this application as the material of central electrode, and the application's central electrode material can be ignored the application's technical scheme impact.
The horizontal width of lateral electrode 3 is long than vertical direction, can increase the heat in better transmission engine cylinder, and protection lateral electrode itself is not by high temperature ablation.
Noble metal electrode is arranged at respectively on lateral electrode and central electrode, its outer surface diameter equates, the noble metal outer surface diameter be arranged on central electrode is S2, the outer surface diameter that is arranged at the noble metal electrode on lateral electrode is S1, and S1=S2, and the line at outer surface center overlaps with the spark plug body center line; The shape of two noble metal electrodes can be identical can be not identical yet, but consider to be all mutually excellent with two noble metal electrodes from reducing costs, and the shape of two noble metal electrodes can be for cylindrical, prismatic, each shapes such as conical and cone platform shape, in this application, two noble metal electrodes be shaped as cone platform shape, the surface area that wherein area is large is outside, the little surface area of area is for concentricity electrode and lateral electrode welding.
The described noble metal electrode be arranged on lateral electrode is arranged at the top of the horizontal component of lateral electrode, and the outer surface of this noble metal electrode approaches and overlaps with the end line of lateral electrode horizontal component.Namely the horizontal component length of lateral electrode is that outer is relative close to the outer surface that closes the noble metal electrode on central electrode, and its effect is to improve the lateral electrode heat-conducting effect, and reduces heat-energy losses when igniting.
The front end face of metal shell be D1 to noble metal electrode outer face distance on central electrode, and between two noble metal electrode opposing end surfaces, apart from being D2, the horizontal component thickness of lateral electrode is D3, and, D1 > D3, D2<D3, D3+D2 > D1.
In the present embodiment, the front end face of metal shell is between 1.5mm-3.5mm to noble metal electrode outer face distance B 1 on central electrode.
Between two noble metal electrode opposing end surfaces, distance B 2 is between 0.6mm-0.9mm.
The horizontal component thickness D3 of lateral electrode is between 1.0mm-1.5mm.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (6)
1. ethanol-gasoline flexibly engine fuel spark plug, is characterized in that: include metal shell, central electrode, lateral electrode, insulator, spark plug body and noble metal electrode;
Described metal shell is positioned at described spark plug body front end, described central electrode is positioned at described metal shell, described insulator is between described central electrode and described metal shell, described lateral electrode is arranged on metal shell front port one side, and described noble metal electrode is arranged on lateral electrode near central electrode side and central electrode top;
The horizontal width of described lateral electrode is long than vertical direction, can increase the heat in better transmission engine cylinder, and protection lateral electrode itself is not by high temperature ablation;
Described noble metal electrode is arranged at respectively on lateral electrode and central electrode, and its outer surface diameter equates, and the line at outer surface center overlaps with the spark plug body center line;
The described noble metal electrode be arranged on lateral electrode is arranged at the top of the horizontal component of lateral electrode, the outer surface of this noble metal electrode approaches and overlaps with the end line of lateral electrode horizontal component, its effect is to improve the lateral electrode heat-conducting effect, and reduces heat-energy losses when igniting.
2. ethanol according to claim 1-gasoline flexibly engine fuel spark plug, it is characterized in that: the front end face of described metal shell is D1 to noble metal electrode outer face distance on central electrode, between two noble metal electrode opposing end surfaces, distance is D2, the horizontal component thickness of lateral electrode is D3, and, D1 > D3, D2<D3, D3+D2 > D1.
3. ethanol according to claim 2-gasoline flexibly engine fuel spark plug is characterized in that: the front end face of described metal shell to noble metal electrode outer face distance B 1 on central electrode between 1.5mm-3.5mm.
4. ethanol according to claim 2-gasoline flexibly engine fuel spark plug is characterized in that: between two noble metal electrode opposing end surfaces, distance B 2 is between 0.6mm-0.9mm.
5. ethanol according to claim 2-gasoline flexibly engine fuel spark plug, it is characterized in that: the horizontal component thickness D3 of lateral electrode is between 1.0mm-1.5mm.
6. ethanol according to claim 1-gasoline flexibly engine fuel spark plug, it is characterized in that: the front end face of described metal shell is concordant with the front end face of described insulator.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355869.3A CN103427337B (en) | 2013-08-15 | 2013-08-15 | A kind of ethanol-gasoline flexibly engine fuel spark plug |
| PCT/CN2014/076936 WO2015021795A1 (en) | 2013-08-15 | 2014-05-07 | Engine spark plug using alcohol-gasoline flexible fuel |
| BR112016002780-9A BR112016002780B1 (en) | 2013-08-15 | 2014-05-07 | IGNITION CANDLE FOR ALCOHOL AND GASOLINE FLEXIBLE FUEL ENGINE |
| BR212016002780U BR212016002780U2 (en) | 2013-08-15 | 2014-05-07 | spark plug for alcohol and gasoline flexible fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355869.3A CN103427337B (en) | 2013-08-15 | 2013-08-15 | A kind of ethanol-gasoline flexibly engine fuel spark plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103427337A true CN103427337A (en) | 2013-12-04 |
| CN103427337B CN103427337B (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310355869.3A Active CN103427337B (en) | 2013-08-15 | 2013-08-15 | A kind of ethanol-gasoline flexibly engine fuel spark plug |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103427337B (en) |
| BR (2) | BR212016002780U2 (en) |
| WO (1) | WO2015021795A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021795A1 (en) * | 2013-08-15 | 2015-02-19 | 安徽江淮汽车股份有限公司 | Engine spark plug using alcohol-gasoline flexible fuel |
| CN113588720A (en) * | 2021-08-03 | 2021-11-02 | 浙江博美泰克电子有限公司 | Automobile or industrial alcohol and gasoline mixing ratio sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6147441A (en) * | 1995-12-06 | 2000-11-14 | Denso Corporation | Spark plug |
| CN101010840A (en) * | 2004-02-03 | 2007-08-01 | 联邦摩古点燃(英国)有限公司 | Spark plug configuration having a metal noble tip |
| US20080122334A1 (en) * | 2006-11-23 | 2008-05-29 | Ngk Spark Plug Co., Ltd. | Spark plug |
| CN101351939A (en) * | 2005-11-08 | 2009-01-21 | 费德罗-莫格尔公司 | Spark plug having precious metal pad attached to ground electrode and method of making same |
| CN201345497Y (en) * | 2009-02-04 | 2009-11-11 | 株洲湘火炬火花塞有限责任公司 | A Z-shaped lateral electrode sparking plug |
| CN202550283U (en) * | 2012-04-12 | 2012-11-21 | 安徽江淮汽车股份有限公司 | Dual purpose automobile engine spark plug |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012032846A1 (en) * | 2010-09-07 | 2012-03-15 | 日本特殊陶業株式会社 | Ignition system and spark plug |
| CN103427337B (en) * | 2013-08-15 | 2015-12-02 | 安徽江淮汽车股份有限公司 | A kind of ethanol-gasoline flexibly engine fuel spark plug |
-
2013
- 2013-08-15 CN CN201310355869.3A patent/CN103427337B/en active Active
-
2014
- 2014-05-07 WO PCT/CN2014/076936 patent/WO2015021795A1/en active Application Filing
- 2014-05-07 BR BR212016002780U patent/BR212016002780U2/en active IP Right Grant
- 2014-05-07 BR BR112016002780-9A patent/BR112016002780B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6147441A (en) * | 1995-12-06 | 2000-11-14 | Denso Corporation | Spark plug |
| CN101010840A (en) * | 2004-02-03 | 2007-08-01 | 联邦摩古点燃(英国)有限公司 | Spark plug configuration having a metal noble tip |
| CN101351939A (en) * | 2005-11-08 | 2009-01-21 | 费德罗-莫格尔公司 | Spark plug having precious metal pad attached to ground electrode and method of making same |
| US20080122334A1 (en) * | 2006-11-23 | 2008-05-29 | Ngk Spark Plug Co., Ltd. | Spark plug |
| CN201345497Y (en) * | 2009-02-04 | 2009-11-11 | 株洲湘火炬火花塞有限责任公司 | A Z-shaped lateral electrode sparking plug |
| CN202550283U (en) * | 2012-04-12 | 2012-11-21 | 安徽江淮汽车股份有限公司 | Dual purpose automobile engine spark plug |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021795A1 (en) * | 2013-08-15 | 2015-02-19 | 安徽江淮汽车股份有限公司 | Engine spark plug using alcohol-gasoline flexible fuel |
| CN113588720A (en) * | 2021-08-03 | 2021-11-02 | 浙江博美泰克电子有限公司 | Automobile or industrial alcohol and gasoline mixing ratio sensor |
| CN113588720B (en) * | 2021-08-03 | 2024-04-26 | 浙江博美泰克电子有限公司 | Automobile or industrial alcohol and gasoline mixing ratio sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015021795A1 (en) | 2015-02-19 |
| BR212016002780U2 (en) | 2018-05-29 |
| BR112016002780B1 (en) | 2020-09-29 |
| CN103427337B (en) | 2015-12-02 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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