WO2015021795A1 - Bougie d'allumage de moteur mettant en œuvre un carburant mixte à base d'alcool et d'essence - Google Patents

Bougie d'allumage de moteur mettant en œuvre un carburant mixte à base d'alcool et d'essence Download PDF

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Publication number
WO2015021795A1
WO2015021795A1 PCT/CN2014/076936 CN2014076936W WO2015021795A1 WO 2015021795 A1 WO2015021795 A1 WO 2015021795A1 CN 2014076936 W CN2014076936 W CN 2014076936W WO 2015021795 A1 WO2015021795 A1 WO 2015021795A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
spark plug
side electrode
noble metal
gasoline
Prior art date
Application number
PCT/CN2014/076936
Other languages
English (en)
Chinese (zh)
Inventor
王先瑞
李�杰
王立辉
何博
钱多德
胡俊勇
代永刚
虞坚
刘芯娟
Original Assignee
安徽江淮汽车股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 安徽江淮汽车股份有限公司 filed Critical 安徽江淮汽车股份有限公司
Priority to BR112016002780-9A priority Critical patent/BR112016002780B1/pt
Priority to BR212016002780U priority patent/BR212016002780U2/pt
Publication of WO2015021795A1 publication Critical patent/WO2015021795A1/fr

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to the technical field of automobile engine ignition system, in particular to a spark plug for an ethanol-gasoline flexible proportional engine. Background technique
  • Spark plugs are widely used in automobile engines.
  • the function of the spark plug is to discharge the pulsed high-voltage electric energy transmitted from the ignition coil, break the air between the two electrodes of the spark plug, and generate an electric spark to ignite the mixed gas in the engine cylinder and push the piston. Doing work makes the engine work.
  • the side electrode of the spark plug is generally a strip material, which is welded to the end of the spark plug housing by a professional welding device, and bends the metal side electrode to the vertical position of the center electrode to form an ignition gap with the center electrode.
  • FIG. 1 Chinese Patent Application No. 200580007335 discloses a spark plug structure having a noble metal terminal.
  • the front end of the spark plug body 5 (the lower portion in the figure) penetrates into the cylinder and is an ignition working position.
  • a spark gap is provided between the center electrode 2 and the side electrode 3.
  • the outer portion of the center electrode 2 is an insulator 4, and the outside of the insulator 4 is a metal case 1.
  • the side electrode 3 is bent into an L shape and welded to one side of the front port of the metal casing 1.
  • the insulator 4 is partially exposed outside the metal casing 1 in the axial direction.
  • the purpose of the patent of the present invention is to provide a novel spark plug which can better protect the center electrode of the spark plug and is less prone to ablation of the spark plug side electrode by improving the prior art scheme, and the energy of the spark plug is ignited. A small spark plug with a loss.
  • Ethanol-gasoline flexible fuel engine spark plugs including: metal housing, center electrode, side electrode, insulator, spark plug body and noble metal electrode;
  • the metal casing is located at a front end of the spark plug body, the center electrode is located in the metal casing, the insulator is located between the center electrode and the metal casing, and the side electrode is disposed in front of the metal casing On one side of the port, the noble metal electrode is disposed on the side electrode near the center electrode side and the top of the center electrode;
  • the horizontal width of the side electrode is longer than the vertical direction, which can increase the heat transfer in the engine cylinder, and protect the side electrode itself from being ablated by high temperature;
  • the noble metal electrodes are respectively disposed on the side electrode and the center electrode, the outer surfaces thereof are equal in diameter, and the line connecting the centers of the outer surfaces coincides with the center line of the spark plug body;
  • the noble metal electrode disposed on the side electrode is disposed at a top end of the horizontal portion of the side electrode, and the outer surface of the noble metal electrode and the end line of the horizontal portion of the side electrode are close to each other, and the function thereof is to improve the heat conduction effect of the side electrode, and reduce the ignition time. Heat loss.
  • the distance from the front end surface of the metal casing to the outer end surface of the noble metal electrode on the center electrode is D1
  • the distance between the opposite end faces of the two noble metal electrodes is D2
  • the thickness of the horizontal portion of the side electrode is D3, and D1 > D 3 , D2 ⁇ D3 , D 3+D2>D1.
  • the front end surface of the metal casing is flush with the front end surface of the insulator.
  • the distance D1 between the front end surface of the metal shell and the outer end surface of the noble metal electrode on the center electrode is 1. 5mm-3. 5mm.
  • the distance between the opposite ends of the two noble metal electrodes is from 0.6 mm to 0.9 mm.
  • the thickness of the horizontal portion of the side electrode D3 is between 1. Omm-1. 5mm.
  • the size of the precious metal electrode is small, especially the use of the noble metal electrode on the side electrode side, and the size of the noble metal electrode on the side electrode side and the center electrode side is the same. Reducing the size of the noble metal electrode can effectively reduce the anti-inflammatory effect of the ignition timing of the engine, and prevent the energy at the time of ignition from being excessively absorbed by the noble metal electrode.
  • the thickness of the side electrode of the spark plug is smaller than the length of the center electrode.
  • the change of the length of the side electrode can also reduce the consumption of ignition energy at the ignition timing of the engine, and ensure that the ignition of the fuel-fueled engine is smoothly ignited.
  • the ignition gap of the spark plug is smaller than the thickness of the side electrode compared with the side electrode, which can increase the ignition energy of the spark plug without increasing the ignition energy of the engine.
  • the center electrode length is less than the sum of the ignition gap and the side electrode thickness.
  • the overall size of the side electrode is small in the conventional engine, ensuring the heat transfer performance of the spark plug side electrode under heavy engine load conditions.
  • FIG. 1 is a schematic view showing the structure of a prior art engine spark plug
  • FIG. 3 is a schematic structural view of a noble metal electrode of the present invention.
  • Fig. 4 is a schematic view showing the structure of an electrode portion of the present invention. detailed description
  • the ethanol-one gasoline flexible fuel engine spark plug comprises: a metal casing 1, a center electrode 2, a side electrode 3, an insulator 4, and a spark plug body 5.
  • the metal casing 1 is located at the front end of the spark plug body 5, and the metal casing 1 can be varied in accordance with the needs of the engine, such as an outer diameter of the casing of 10 mm or 14 mm.
  • the center electrode is located in the metal casing, and the material of the center electrode is not within the scope of the present application, because the material that can be used as the center electrode can be realized in the present application, and the center electrode material of the present application affects the technical solution of the present application. can be omitted.
  • the insulator 4 is located between the center electrode 2 and the metal casing 1.
  • the front end surface of the metal casing 1 is flush with the front end surface of the insulator 4.
  • the side electrode 3 is disposed on the front port side of the metal casing 1, and the noble metal electrode (61, 62) is disposed on the side electrode near the center electrode side and the top of the center electrode; therefore, in the present application, the noble metal electrode is two A noble metal electrode 61 is disposed at the top end of the center electrode 1, and another noble metal electrode 62 is disposed on the end surface of the horizontal portion of the side electrode 3.
  • the horizontal width of the side electrode 3 is longer than the vertical direction, which can increase the heat transfer in the engine cylinder and protect the side electrode itself from being ablated by high temperature.
  • the shapes of the two noble metal electrodes may be the same or different, but the two precious metal electrodes are the same as the cost reduction, and the two noble metal electrodes are the same
  • the shape may be cylindrical, prismatic, rounded, and rounded, and the like. In the present application, the two noble metal electrodes have a round pusher shape, wherein the large surface area is external, and the surface area is small. Solder at the same center electrode and side electrode.
  • the noble metal electrode disposed on the side electrode is disposed at a top end of the horizontal portion of the side electrode, and the outer surface of the noble metal electrode and the end line of the horizontal portion of the side electrode are nearly coincident. That is, the length of the horizontal portion of the side electrode is such that the outer edge is close to the outer surface of the noble metal electrode on the center electrode, and the effect is to increase the heat conduction effect of the side electrode and to reduce the heat energy loss upon ignition.
  • the distance from the front end surface of the metal casing to the outer end surface of the noble metal electrode on the center electrode is D1
  • the distance between the opposite end faces of the two noble metal electrodes is D2
  • the thickness of the horizontal portion of the side electrode is D3, and D1 > D3, D2 ⁇ D3, D3+D2>D1.
  • the front end of the metal shell to the center electrode on the outer surface of the noble metal electrode distance D1 is between 1. 5mm-3. 5mm.
  • the distance between the opposite ends of the two noble metal electrodes is from 0.6 mm to 0.9 mm.
  • the thickness of the horizontal portion of the side electrode D3 is between 1. Omm-1. 5mm.

Landscapes

  • Spark Plugs (AREA)

Abstract

Cette invention concerne une bougie d'allumage mettant un carburant mixte à base d'alcool et d'essence selon des proportions variables. Un boîtier métallique (1) est disposé à une extrémité avant d'un corps principal de bougie d'allumage (5). Une électrode centrale (2) est disposée à l'intérieur du boîtier métallique (1) et un isolant (4) est disposé entre l'électrode centrale (2) et le boîtier métallique (1). Une électrode latérale (3) est soudée à un côté d'un orifice avant du boîtier métallique (1). Des électrodes en métal noble (61, 62) sont soudées à un côté de l'électrode latérale (3) proche de l'électrode centrale (2) et à la partie supérieure de l'électrode centrale (2). Lesdites électrodes en métal noble présentent une taille et une largeur identiques de manière à réduire les pertes de chaleur lors de l'allumage de la bougie d'allumage. La largeur de l'électrode latérale (3) dans une direction horizontale est supérieure à sa largeur dans une direction verticale, de sorte à assurer une meilleure alimentation d'un cylindre de moteur et à éviter la séparation de l'électrode latérale (3) sous l'effet d'une température élevée. La longueur de l'électrode latérale (3) est inférieure à celle d'une bougie d'allumage d'un moteur ordinaire et l'effet de conduction thermique de l'électrode latérale (3) s'en trouve amélioré.
PCT/CN2014/076936 2013-08-15 2014-05-07 Bougie d'allumage de moteur mettant en œuvre un carburant mixte à base d'alcool et d'essence WO2015021795A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112016002780-9A BR112016002780B1 (pt) 2013-08-15 2014-05-07 Vela de ignição para motor de combustível flexível à álcool e gasolina
BR212016002780U BR212016002780U2 (pt) 2013-08-15 2014-05-07 vela de ignição para motor de combustível flexível à álcool e gasolina

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310355869.3A CN103427337B (zh) 2013-08-15 2013-08-15 一种乙醇—汽油灵活燃料发动机火花塞
CN201310355869.3 2013-08-15

Publications (1)

Publication Number Publication Date
WO2015021795A1 true WO2015021795A1 (fr) 2015-02-19

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PCT/CN2014/076936 WO2015021795A1 (fr) 2013-08-15 2014-05-07 Bougie d'allumage de moteur mettant en œuvre un carburant mixte à base d'alcool et d'essence

Country Status (3)

Country Link
CN (1) CN103427337B (fr)
BR (2) BR212016002780U2 (fr)
WO (1) WO2015021795A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103427337B (zh) * 2013-08-15 2015-12-02 安徽江淮汽车股份有限公司 一种乙醇—汽油灵活燃料发动机火花塞
CN113588720B (zh) * 2021-08-03 2024-04-26 浙江博美泰克电子有限公司 汽车或工业类酒精和汽油混合比传感器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6147441A (en) * 1995-12-06 2000-11-14 Denso Corporation Spark plug
CN101010840A (zh) * 2004-02-03 2007-08-01 联邦摩古点燃(英国)有限公司 具有贵金属端子的火花塞结构
CN101351939A (zh) * 2005-11-08 2009-01-21 费德罗-莫格尔公司 接地电极上设有贵金属垫的火花塞及其制造方法
CN201345497Y (zh) * 2009-02-04 2009-11-11 株洲湘火炬火花塞有限责任公司 一种z型侧电极火花塞
CN202550283U (zh) * 2012-04-12 2012-11-21 安徽江淮汽车股份有限公司 两用汽车发动机火花塞
CN103098324A (zh) * 2010-09-07 2013-05-08 日本特殊陶业株式会社 点火系统和火花塞
CN103427337A (zh) * 2013-08-15 2013-12-04 安徽江淮汽车股份有限公司 一种乙醇—汽油灵活燃料发动机火花塞

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4261573B2 (ja) * 2006-11-23 2009-04-30 日本特殊陶業株式会社 スパークプラグ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6147441A (en) * 1995-12-06 2000-11-14 Denso Corporation Spark plug
CN101010840A (zh) * 2004-02-03 2007-08-01 联邦摩古点燃(英国)有限公司 具有贵金属端子的火花塞结构
CN101351939A (zh) * 2005-11-08 2009-01-21 费德罗-莫格尔公司 接地电极上设有贵金属垫的火花塞及其制造方法
CN201345497Y (zh) * 2009-02-04 2009-11-11 株洲湘火炬火花塞有限责任公司 一种z型侧电极火花塞
CN103098324A (zh) * 2010-09-07 2013-05-08 日本特殊陶业株式会社 点火系统和火花塞
CN202550283U (zh) * 2012-04-12 2012-11-21 安徽江淮汽车股份有限公司 两用汽车发动机火花塞
CN103427337A (zh) * 2013-08-15 2013-12-04 安徽江淮汽车股份有限公司 一种乙醇—汽油灵活燃料发动机火花塞

Also Published As

Publication number Publication date
BR212016002780U2 (pt) 2018-05-29
CN103427337A (zh) 2013-12-04
CN103427337B (zh) 2015-12-02
BR112016002780B1 (pt) 2020-09-29

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