CN103427337B - A kind of ethanol-gasoline flexibly engine fuel spark plug - Google Patents
A kind of ethanol-gasoline flexibly engine fuel spark plug Download PDFInfo
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- CN103427337B CN103427337B CN201310355869.3A CN201310355869A CN103427337B CN 103427337 B CN103427337 B CN 103427337B CN 201310355869 A CN201310355869 A CN 201310355869A CN 103427337 B CN103427337 B CN 103427337B
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- electrode
- spark plug
- lateral electrode
- 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 the engine spark plug that one is applied to ethanol-gasoline flexibly ratio, metal shell is positioned at described spark plug body front end, central electrode is positioned at described metal shell, insulator is between described central electrode and metal shell, lateral electrode is welded on metal shell front port side, noble metal electrode is welded on lateral electrode near central electrode side and central electrode top, comparatively vertical direction is long for the horizontal width of lateral electrode, can increase the heat better transmitted in engine cylinder, protection lateral electrode itself is not by high temperature ablation; Lateral electrode length is short compared with common engine spark plug, and lateral electrode heat-conducting effect is better; Noble metal electrode lays respectively on lateral electrode and central electrode, and its size width is identical, reduces thermal loss during plug ignition.
Description
Technical field
Patent of the present invention relates to automotive engine ignition system technical field, and particularly one is used 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 passes over is discharged, the interelectrode air of disruptive spark plug two, produce electric spark, with the mist in this ignition engine cylinder, promote piston acting and make engine running.The lateral electrode of spark plug is generally bar material, utilize the welding equipment of specialty to be welded on spark-plug body port, and bending metal side electrode is to central electrode upright position, forms ignition gap with central electrode.
Chinese Patent Application No. is 200580007335 disclose a kind of spark plug configuration with metal noble tip, and as shown in Figure 1, cylinder is goed deep in the front end (bottom both in figure) of spark plug body 5, is ignition operation position.It is spark gap between central electrode 2 and lateral electrode 3.Central electrode 2 outside is insulator 4, and insulator 4 outside is metal shell 1.Generally, lateral electrode 3 is that 2 bar materials bend to L shape, is welded on the side of the front port of metal shell 1.As seen from Figure 1, insulator 4 has partial denudation in the axial direction outside metal shell 1.
Although disclose the performance such as high temperature resistant, corrosion-resistant that can improve spark plug to the use of metal noble tip, because heat-energy losses is comparatively large between two electrodes of this technical scheme, the igniting requirement of alcohol-gasoline fuel can not be used for.
Current clean energy resource industrial expansion, the alcohol fuel using biomaterial to produce is more prevalent; Adopt the automobile of alcohol fuel to have good discharge performance, dynamic property and economy because of it, just gradually be familiar with by people and paid attention to.Due to ethanol fuel engine ignition temperature, comparatively petrol engine is high, and alcohol fuel spark plug requires higher to heat dispersion.The heat-flash that during spark plug work, firing tip lateral electrode produces and the heat that engine combustion produces must derive rapidly life-span and the work quality of guarantee spark plug.From to the research of ethanol fuel engine, existing spark plug metal electrode heat-conducting effect is general, easily issues the phenomenon of raw burn erosion in the situation of ethanol combustion, and the reason of ablation, be the poor heat conduction of electrode own.
Meanwhile, due to ethanol---gasoline flexibly engine fuel employs alcohol fuel, and the energy lost during the igniting of its engine is higher, higher to the requirement duty requirements of time of ignition pilot spark.So the structure of spark plug needs to be improved, to meet ethanol---the ignition energy that gasoline flexibly engine fuel time of ignition is higher, ensures reliability requirement under high loads simultaneously.
Summary of the invention
The object of patent of the present invention is; by the improvement to prior art, provide a kind of heat conduction faster and better, can available protecting central electrode; not easily there is the spark plug of spark-plug side electrode ablation phenomen, and the spark plug that energy loss is little when plug ignition.
The present invention is achieved by the following technical solutions:
Ethanol---gasoline flexibly engine fuel spark plug, comprising: 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 side, and described noble metal electrode is arranged on lateral electrode near central electrode side and central electrode top;
Comparatively vertical direction is long for the horizontal width of described lateral electrode, can increase the heat better transmitted in engine cylinder, and protection lateral electrode itself is not by high temperature ablation;
Described noble metal electrode is arranged on lateral electrode and central electrode respectively, and its outer surface diameter is equal, and the line at outer surface center overlaps with spark plug body center line;
The described noble metal electrode be arranged in lateral electrode is arranged at the top of the horizontal component of lateral electrode, the outer surface of this noble metal electrode and the end line of lateral electrode horizontal component are close to overlapping, its effect improves lateral electrode heat-conducting effect, and reduce heat-energy losses when lighting a fire.
The front end face of described metal shell is D1 to noble metal electrode outer face distance on central electrode, the spacing of two noble metal electrode opposing end surfaces is 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 D1 on central electrode.
The spacing D2 of two noble metal electrode opposing end surfaces 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:
The size of 1, less noble metal electrode, the particularly use of lateral electrode side noble metal electrode, the noble metal electrode of lateral electrode side and central electrode side is measure-alike.The size reducing noble metal electrode effectively can reduce the antiinflammation of engine igniting time, avoids energy during igniting by noble metal electrode excessive consumption.
2, the thickness of spark-plug side electrode is little compared with central electrode length, and the length of lateral electrode changes can reduce the consumption of engine igniting time to ignition energy equally, ensures ethanol---gasoline flexibly engine fuel igniting smooth ignition.
3, the ignition gap of this spark plug is little compared with lateral electrode thickness compared with lateral electrode length, can increase the energy of plug ignition under the prerequisite not promoting engine ignition energy.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, ensure that the heat transfer property of spark-plug side electrode under the large loading condiction of engine.
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;
Fig. 4 is the structural representation of electrode part of the present invention.
Embodiment
Describe technical scheme of the present invention in detail below by way of 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 be interpreted as being the restriction to technical solution of the present invention.
As shown in Figure 2 to Figure 3, ethanol---gasoline flexibly engine fuel spark plug, comprising: 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 end, metal shell 1 can according to engine to need the external diameter of housing be that 10mm or 14mm etc. changes.Central electrode is positioned at described metal shell; the material of central electrode is not the scope that this application claims protection; because all can be able to realize in this application as the material of central electrode, and the technical scheme impact of the center electrode material of the application on the application can be ignored.
Insulator 4 is between described central electrode 2 and described metal shell 1, and in the present embodiment, the front end face of metal shell 1 is concordant with the front end face of described insulator 4.Described lateral electrode 3 is arranged on metal shell 1 front port side, and described noble metal electrode (61,62) is arranged on lateral electrode near central electrode side and central electrode top; Therefore, in this application, noble metal electrode is two, and a noble metal electrode 61 is arranged at the top of central electrode 2, and another noble metal electrode 62 is arranged on the end face of lateral electrode 3 horizontal component.
Comparatively vertical direction is long for the horizontal width of lateral electrode 3, can increase the heat better transmitted in engine cylinder, and protection lateral electrode itself is not by high temperature ablation.
Noble metal electrode is arranged on lateral electrode and central electrode respectively, its outer surface diameter is equal, the noble metal outer surface diameter be arranged on central electrode is S2, the outer surface diameter being arranged at the noble metal electrode in lateral electrode is S1, and S1=S2, and the line at outer surface center overlaps with spark plug body center line; The shape of two noble metal electrodes can identical also can not be identical, but consider to be all excellent mutually with two noble metal electrodes from reducing costs, and the shape of two noble metal electrodes can be cylindrical, prismatic, each shapes such as conical and cone platform shape, in this application, the shape of two noble metal electrodes is cone platform shape, and the surface area that wherein area is large is outside, and the surface area that area is little is used for concentricity electrode and lateral electrode welding.
The described noble metal electrode be arranged in lateral electrode is arranged at the top of the horizontal component of lateral electrode, and the outer surface of this noble metal electrode and the end line of lateral electrode horizontal component are close to overlapping.Namely lateral electrode horizontal component length to be outer relative close to the outer surface of the noble metal electrode closed on central electrode, its effect improves lateral electrode heat-conducting effect, and reduce heat-energy losses when lighting a fire.
The front end face of metal shell is D1 to noble metal electrode outer face distance on central electrode, and the spacing of two noble metal electrode opposing end surfaces is D2, and 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 D1 on central electrode.
The spacing D2 of two noble metal electrode opposing end surfaces is between 0.6mm-0.9mm.
The horizontal component thickness D3 of lateral electrode is between 1.0mm-1.5mm.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (5)
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 side, and described noble metal electrode is arranged on lateral electrode near central electrode side and central electrode top;
Comparatively vertical direction is long for the horizontal width of described lateral electrode, can increase the heat better transmitted in engine cylinder, and protection lateral electrode itself is not by high temperature ablation;
Described noble metal electrode is arranged on lateral electrode and central electrode respectively, and its outer surface diameter is equal, and the line at outer surface center overlaps with spark plug body center line;
The described noble metal electrode be arranged in lateral electrode is arranged at the top of the horizontal component of lateral electrode, the outer surface of this noble metal electrode and the end line of lateral electrode horizontal component are close to overlapping, its effect improves lateral electrode heat-conducting effect, and reduce heat-energy losses when lighting a fire;
The front end face of described metal shell is D1 to noble metal electrode outer face distance on central electrode, the spacing of two noble metal electrode opposing end surfaces is D2, the horizontal component thickness of lateral electrode is D3, and, D1>D3, D2<D3, D3+D2>D1.
2. ethanol according to claim 1-gasoline flexibly engine fuel spark plug, is characterized in that: the front end face of described metal shell is between 1.5mm-3.5mm to noble metal electrode outer face distance D1 on central electrode.
3. ethanol according to claim 1-gasoline flexibly engine fuel spark plug, is characterized in that: the spacing D2 of two noble metal electrode opposing end surfaces is between 0.6mm-0.9mm.
4. ethanol according to claim 1-gasoline flexibly engine fuel spark plug, is characterized in that: the horizontal component thickness D3 of lateral electrode is between 1.0mm-1.5mm.
5. ethanol according to claim 1-gasoline flexibly engine fuel spark plug, 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 |
| 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 |
| PCT/CN2014/076936 WO2015021795A1 (en) | 2013-08-15 | 2014-05-07 | Engine spark plug using alcohol-gasoline flexible fuel |
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 CN103427337A (en) | 2013-12-04 |
| CN103427337B true CN103427337B (en) | 2015-12-02 |
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| 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) | BR112016002780B1 (en) |
| WO (1) | WO2015021795A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110994360A (en) * | 2019-12-31 | 2020-04-10 | 营口福泰科技有限责任公司 | Sparking plug for methanol fuel engine |
| 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 |
Citations (5)
| 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 |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4261573B2 (en) * | 2006-11-23 | 2009-04-30 | 日本特殊陶業株式会社 | Spark plug |
| 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 BR BR112016002780-9A patent/BR112016002780B1/en active IP Right Grant
- 2014-05-07 BR BR212016002780U patent/BR212016002780U2/en active IP Right Grant
- 2014-05-07 WO PCT/CN2014/076936 patent/WO2015021795A1/en active Application Filing
Patent Citations (5)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103427337A (en) | 2013-12-04 |
| WO2015021795A1 (en) | 2015-02-19 |
| BR212016002780U2 (en) | 2018-05-29 |
| BR112016002780B1 (en) | 2020-09-29 |
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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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