JP6876075B2 - スパークプラグ - Google Patents
スパークプラグ Download PDFInfo
- Publication number
- JP6876075B2 JP6876075B2 JP2019011178A JP2019011178A JP6876075B2 JP 6876075 B2 JP6876075 B2 JP 6876075B2 JP 2019011178 A JP2019011178 A JP 2019011178A JP 2019011178 A JP2019011178 A JP 2019011178A JP 6876075 B2 JP6876075 B2 JP 6876075B2
- Authority
- JP
- Japan
- Prior art keywords
- chip
- thin
- outer peripheral
- base material
- discharge surface
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 53
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 description 13
- 230000008018 melting Effects 0.000 description 13
- 239000010953 base metal Substances 0.000 description 7
- 230000008602 contraction Effects 0.000 description 6
- 239000012212 insulator Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 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
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000010970 precious metal Substances 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
- H01T13/39—Selection of materials for electrodes
-
- 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
- H01T13/32—Sparking plugs characterised by features of the electrodes or insulation characterised by features of the earthed electrode
-
- 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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
-
- 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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/06—Adjustment of spark gaps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
Description
母材の第1端部に溶融部が形成され、第1端部の反対側に位置する第2端部が、主体金具に接合される。薄肉部は第1端部から第2端部へ向かう方向に延びているので、母材の第1端部から第2端部へ向かう方向と交差する方向に生じる熱膨張収縮に効果がある。
20 中心電極
30 主体金具
40,70,80 接地電極
41 母材
42 第1端部
43 第2端部
44,81 チップ
45,82 放電面
46 火花ギャップ
51,71,86 溶融部
59,84 外周部
60,85 放電面の中央
61,74,89 薄肉部
Claims (2)
- 母材と、放電面を有するチップと、前記チップと前記母材との間の全体に亘って介在し前記チップを前記母材に接合する溶融部と、を備える接地電極と、
前記放電面との間に火花ギャップを形成する中心電極と、を備え、前記溶融部は前記母材の表面のうち前記中心電極を向く表面のみ形成されているスパークプラグであって、
前記チップは、自身の外周部に囲まれる内側に、前記放電面と前記溶融部との間の距離が、前記外周部における前記放電面と前記溶融部との間の距離よりも短い薄肉部を備え、
前記薄肉部は、前記外周部の一部から前記外周部の前記一部以外の部位まで延びており、
前記母材は、前記溶融部が形成される第1端部と、前記第1端部の反対側に位置し主体金具に接合される第2端部と、を備え、
前記薄肉部は、前記第1端部から前記第2端部へ向かう方向に延びているスパークプラグ。 - 前記薄肉部は、前記放電面の中央を通る請求項1記載のスパークプラグ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019011178A JP6876075B2 (ja) | 2019-01-25 | 2019-01-25 | スパークプラグ |
US16/742,977 US10804682B2 (en) | 2019-01-25 | 2020-01-15 | Spark plug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019011178A JP6876075B2 (ja) | 2019-01-25 | 2019-01-25 | スパークプラグ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020119816A JP2020119816A (ja) | 2020-08-06 |
JP6876075B2 true JP6876075B2 (ja) | 2021-05-26 |
Family
ID=71731688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019011178A Active JP6876075B2 (ja) | 2019-01-25 | 2019-01-25 | スパークプラグ |
Country Status (2)
Country | Link |
---|---|
US (1) | US10804682B2 (ja) |
JP (1) | JP6876075B2 (ja) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4928596B2 (ja) * | 2009-12-04 | 2012-05-09 | 日本特殊陶業株式会社 | スパークプラグ及びその製造方法 |
JP5028508B2 (ja) * | 2010-06-11 | 2012-09-19 | 日本特殊陶業株式会社 | スパークプラグ |
DE112011103796B4 (de) * | 2010-11-17 | 2019-10-31 | Ngk Spark Plug Co., Ltd. | Zündkerze |
JP5642032B2 (ja) | 2011-08-17 | 2014-12-17 | 日本特殊陶業株式会社 | スパークプラグ |
JP5938392B2 (ja) * | 2013-12-26 | 2016-06-22 | 日本特殊陶業株式会社 | スパークプラグ |
JP6328088B2 (ja) * | 2015-11-06 | 2018-05-23 | 日本特殊陶業株式会社 | スパークプラグ |
JP6243476B2 (ja) * | 2016-05-24 | 2017-12-06 | 日本特殊陶業株式会社 | スパークプラグ及びその製造方法 |
-
2019
- 2019-01-25 JP JP2019011178A patent/JP6876075B2/ja active Active
-
2020
- 2020-01-15 US US16/742,977 patent/US10804682B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10804682B2 (en) | 2020-10-13 |
US20200244048A1 (en) | 2020-07-30 |
JP2020119816A (ja) | 2020-08-06 |
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