EP2477286B1 - Bougie d'allumage - Google Patents
Bougie d'allumage Download PDFInfo
- Publication number
- EP2477286B1 EP2477286B1 EP12151260.2A EP12151260A EP2477286B1 EP 2477286 B1 EP2477286 B1 EP 2477286B1 EP 12151260 A EP12151260 A EP 12151260A EP 2477286 B1 EP2477286 B1 EP 2477286B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ground electrode
- side tip
- electrode side
- face
- center electrode
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 229910052751 metal Inorganic materials 0.000 claims description 48
- 239000002184 metal Substances 0.000 claims description 48
- 229910000510 noble metal Inorganic materials 0.000 claims description 12
- 238000012360 testing method Methods 0.000 description 70
- 239000010410 layer Substances 0.000 description 62
- 239000000446 fuel Substances 0.000 description 22
- 239000012212 insulator Substances 0.000 description 21
- 238000011156 evaluation Methods 0.000 description 19
- 238000002485 combustion reaction Methods 0.000 description 17
- 239000003570 air Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 230000009036 growth inhibition Effects 0.000 description 7
- 230000003245 working effect Effects 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000575 Ir alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
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
-
- 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
- H01T13/39—Selection of materials for electrodes
Claims (4)
- Bougie (1) comprenant : un corps isolant (2) comportant un trou axial (4) passant à travers celui-ci dans une direction d'un axe (CL1) ; une électrode centrale (5) insérée dans le trou axial (4) ; une enveloppe métallique (3) prévue sur une périphérie extérieure du corps isolant (2) ; une électrode de masse (27) fixée à une partie d'extrémité avant de l'enveloppe métallique (3) ; et une extrémité côté électrode de masse (32), formée à partir d'un métal contenant un métal noble, dont au moins une partie d'extrémité est jointe à une partie d'extrémité avant de l'électrode de masse (27), l'électrode centrale (5) comportant, au niveau de sa partie d'extrémité avant, une extrémité côté électrode centrale (31) formée à partir d'un métal contenant un métal noble, une autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) étant face à une surface latérale de l'extrémité côté électrode centrale (31), et un espace (33) étant formé entre l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) et la surface latérale de l'extrémité côté électrode centrale (31),
caractérisée en ce que
lorsqu'une aire d'une région, dans un plan de projection dans lequel l'extrémité côté électrode de masse (32) et une face d'extrémité avant de l'extrémité côté électrode centrale (31) sont projetées dans un plan virtuel perpendiculaire à l'axe (CL1), délimité par une première tangente (TL1) tracée à partir d'une extrémité d'un côté correspondant à l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) jusqu'à une région de projection correspondant à la face d'extrémité avant de l'extrémité côté électrode centrale (31), une deuxième tangente (TL2) tracée à partir de l'autre extrémité du côté correspondant à l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) jusqu'à la région de projection correspondant à la face d'extrémité avant de l'extrémité côté électrode centrale (31), une droite de projection correspondant à l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32), et une droite de projection correspondant à la périphérie extérieure de la face d'extrémité avant de l'extrémité côté électrode centrale (31), est désignée par SA1 (mm2),
lorsqu'une aire d'une région, dans laquelle une région de projection de l'extrémité côté électrode centrale (31) et une région de projection de l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) se superposent lorsque l'extrémité côté électrode centrale (31) et l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) sont projetées dans un plan virtuel parallèle à l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32), est désignée par SA2 (mm2), et
lorsque la taille de l'espace (33) est désignée par G (mm),
0,12 ≤ SA1 x SA2/G (mm3) ≤ 0,49 est satisfait,
lorsqu'une distance le long de l'axe (CL1) entre un point, sur l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32), positionné le plus près d'un côté d'extrémité arrière dans la direction de l'axe (CL1), et un point, sur une surface de l'extrémité côté électrode centrale (31) face à l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32), positionné le plus près du côté d'extrémité avant le long de l'axe (CL1), est désignée par A (mm), et
lorsqu'une longueur le long de l'axe (CL1) de l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) est désignée par B (mm),
0,05 ≤ A ≤ B + 0,2 et 0,3 ≤ B ≤ 0,7 sont satisfaits, et
lorsque l'aire de l'autre face d'extrémité (32F) de l'extrémité côté électrode de masse (32) est désignée par SX (mm2),
0,3 ≤ SX ≤ 0,6 et 0,4 ≤ G ≤ 1,0 sont satisfaits. - Bougie (1) selon la revendication 1, caractérisée en ce que lorsqu'une section transversale de l'électrode de masse (27) est désignée par SY (mm2), et lorsque la largeur de l'électrode de masse (27) est désignée par W (mm), sur n'importe quelle section transversale, d'une partie du centre longitudinal à ladite extrémité de l'électrode de masse (27), dans une direction perpendiculaire à un axe central (CL2) de l'électrode de masse (27),
2,3 ≤ SY ≤ 3,5 et 1,8 ≤ W ≤ 2,2 sont satisfaits. - Bougie (1) selon l'une quelconque des revendications 1 et 2, caractérisée en ce que
l'électrode de masse (27) comprend une couche extérieure (27Z) et une couche intérieure (271), prévue à l'intérieur de la couche extérieure (27Z), qui est formée à partir d'un métal avec une meilleure conductivité thermique que la couche extérieure (27Z), et
lorsqu'une section transversale de la couche intérieure (271) est désignée par SI (mm2), et lorsque la section transversale de l'électrode de masse (27) est désignée par SZ (mm2), sur une section transversale sur laquelle la section transversale de la couche intérieure (271) est la plus grande dans une direction perpendiculaire à l'axe central (CL2) de l'électrode de masse (27),
0,2 ≤ SI/SZ ≤ 0,5 est satisfait. - Bougie (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que
les deux surfaces latérales (27S1 et 27S2) de l'électrode de masse (27) adjacentes à une surface (27T) opposée de l'électrode de masse (27) face à l'électrode centrale (5) réalisent une forme incurvée convexe vers l'extérieur, et
lorsque les rayons de courbure des lignes externes des deux surfaces latérales (27S1 et 27S2) sont désignés par R (mm) sur une section transversale perpendiculaire à l'axe central (CL2) de l'électrode de masse (27),
R ≤ 1,5 est satisfait.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011006987 | 2011-01-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2477286A2 EP2477286A2 (fr) | 2012-07-18 |
| EP2477286A3 EP2477286A3 (fr) | 2014-04-30 |
| EP2477286B1 true EP2477286B1 (fr) | 2017-10-18 |
Family
ID=45655147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12151260.2A Active EP2477286B1 (fr) | 2011-01-17 | 2012-01-16 | Bougie d'allumage |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2477286B1 (fr) |
| JP (1) | JP5622991B2 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5789276B2 (ja) * | 2013-02-14 | 2015-10-07 | 日本特殊陶業株式会社 | 点火システム |
| JP6230348B2 (ja) * | 2013-09-13 | 2017-11-15 | 日本特殊陶業株式会社 | スパークプラグ |
| US10666023B2 (en) * | 2018-07-03 | 2020-05-26 | Ngk Spark Plug Co., Ltd. | Spark plug |
| CN115064938B (zh) * | 2022-05-19 | 2023-05-23 | 重庆长安汽车股份有限公司 | 一种火花塞性能的测试系统及测试的方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61171080A (ja) * | 1985-01-24 | 1986-08-01 | 日本特殊陶業株式会社 | 点火プラグ |
| JPH11121142A (ja) * | 1997-10-20 | 1999-04-30 | Ngk Spark Plug Co Ltd | 多極スパークプラグ |
| JP2000208234A (ja) * | 1998-11-09 | 2000-07-28 | Ngk Spark Plug Co Ltd | スパ―クプラグ及びそのスパ―クプラグを用いた点火システム |
| JP2006236906A (ja) | 2005-02-28 | 2006-09-07 | Ngk Spark Plug Co Ltd | スパークプラグの製造方法 |
| JP4913716B2 (ja) * | 2007-12-19 | 2012-04-11 | 日本特殊陶業株式会社 | スパークプラグ |
| JP5028299B2 (ja) * | 2008-02-25 | 2012-09-19 | 日本特殊陶業株式会社 | スパークプラグ |
| JP4864065B2 (ja) * | 2008-11-05 | 2012-01-25 | 日本特殊陶業株式会社 | スパークプラグ |
-
2012
- 2012-01-16 JP JP2012005756A patent/JP5622991B2/ja active Active
- 2012-01-16 EP EP12151260.2A patent/EP2477286B1/fr active Active
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2477286A2 (fr) | 2012-07-18 |
| EP2477286A3 (fr) | 2014-04-30 |
| JP2012164644A (ja) | 2012-08-30 |
| JP5622991B2 (ja) | 2014-11-12 |
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