JP2020177745A - 点火プラグ - Google Patents
点火プラグ Download PDFInfo
- Publication number
- JP2020177745A JP2020177745A JP2019077492A JP2019077492A JP2020177745A JP 2020177745 A JP2020177745 A JP 2020177745A JP 2019077492 A JP2019077492 A JP 2019077492A JP 2019077492 A JP2019077492 A JP 2019077492A JP 2020177745 A JP2020177745 A JP 2020177745A
- Authority
- JP
- Japan
- Prior art keywords
- cap portion
- hole
- spark plug
- metal fitting
- tip
- 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.)
- Granted
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Classifications
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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
- 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
- H01T13/02—Details
- H01T13/06—Covers forming a part of the plug and protecting it against adverse environment
-
- 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
- H01T13/00—Sparking plugs
- H01T13/46—Sparking plugs having two or more spark gaps
- H01T13/467—Sparking plugs having two or more spark gaps in parallel connection
-
- 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
- H01T13/54—Sparking plugs having electrodes arranged in a partly-enclosed ignition chamber
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
Abstract
Description
13 中心電極
20,61 主体金具
21,73 おねじ
30,64 接地電極
31,65 接地電極の一端部(端部)
33,67 火花ギャップ
34,68 接地電極の一端部の後端
40,75 キャップ部
41,76 貫通孔
43,78 キャップ部の外面
45,80 キャップ部の内面
47,82 貫通孔の内面
48 キャップ部の後端部
49 溶接部
50 平面
51 交線
O 軸線
Claims (8)
- 先端側から後端側へ向かって軸線に沿って延びる筒状の主体金具と、
前記主体金具の内側に絶縁保持された中心電極と、
前記主体金具に電気的に接続され、前記中心電極と自身の端部との間に火花ギャップを形成する接地電極と、
前記主体金具の先端側において、前記中心電極と前記接地電極の端部とを先端側から覆うと共に、貫通孔が形成されたキャップ部と、を備える点火プラグであって、
前記接地電極の端部の後端よりも先端側の前記キャップ部の内面および前記貫通孔の内面の算術平均粗さは6.3μm以下である点火プラグ。 - 前記キャップ部の前記内面および前記貫通孔の前記内面の算術平均粗さは1.6μm以下である請求項1記載の点火プラグ。
- 前記キャップ部の前記内面および前記貫通孔の前記内面の算術平均粗さは0.8μm以下である請求項1記載の点火プラグ。
- 前記主体金具は、自身の外面の後端側におねじが形成され、前記おねじよりも先端側で前記キャップ部の後端部と溶接されており、
前記主体金具との溶接部を除く前記キャップ部の外面の算術平均粗さは6.3μm以下である請求項1から3のいずれかに記載の点火プラグ。 - 前記キャップ部の外面の後端側におねじが形成され、
前記おねじの先端よりも先端側の前記キャップ部の前記外面の算術平均粗さは6.3μm以下である請求項1から3のいずれかに記載の点火プラグ。 - 前記キャップ部の前記外面の算術平均粗さは1.6μm以下である請求項4又は5に記載の点火プラグ。
- 前記キャップ部の前記外面の算術平均粗さは0.8μm以下である請求項4又は5に記載の点火プラグ。
- 前記算術平均粗さは、前記軸線に平行な平面と前記キャップ部の表面との交線上で測定される請求項1から7のいずれかに記載の点火プラグ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019077492A JP6962965B2 (ja) | 2019-04-16 | 2019-04-16 | 点火プラグ |
CN202010277498.1A CN111834918B (zh) | 2019-04-16 | 2020-04-08 | 火花塞 |
US16/843,200 US10714906B1 (en) | 2019-04-16 | 2020-04-08 | Spark plug |
DE102020204745.6A DE102020204745A1 (de) | 2019-04-16 | 2020-04-15 | Zündkerze |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019077492A JP6962965B2 (ja) | 2019-04-16 | 2019-04-16 | 点火プラグ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020177745A true JP2020177745A (ja) | 2020-10-29 |
JP6962965B2 JP6962965B2 (ja) | 2021-11-05 |
Family
ID=71519913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019077492A Active JP6962965B2 (ja) | 2019-04-16 | 2019-04-16 | 点火プラグ |
Country Status (4)
Country | Link |
---|---|
US (1) | US10714906B1 (ja) |
JP (1) | JP6962965B2 (ja) |
CN (1) | CN111834918B (ja) |
DE (1) | DE102020204745A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6864711B2 (ja) * | 2019-05-07 | 2021-04-28 | 日本特殊陶業株式会社 | スパークプラグ |
JP7051747B2 (ja) * | 2019-05-20 | 2022-04-11 | 日本特殊陶業株式会社 | スパークプラグ |
WO2021229844A1 (ja) * | 2020-05-13 | 2021-11-18 | 日本特殊陶業株式会社 | スパークプラグ |
DE102020211357A1 (de) | 2020-09-10 | 2022-03-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Vorkammerzündkerze, insbesondere für mobile Brennkraftmaschinen |
US11349204B2 (en) * | 2020-09-22 | 2022-05-31 | Apple Inc. | Electronic devices having multilayer millimeter wave antennas |
DE102021204189A1 (de) * | 2021-04-27 | 2022-10-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Vorkammerzündkerze mit exakt einstellbarem Elektrodenabstand sowie Verfahren hierzu |
DE102021204860A1 (de) | 2021-05-12 | 2022-11-17 | Robert Bosch Gesellschaft mit beschränkter Haftung | Zündkerze mit verbesserter Elektrodenausrichtung sowie Verfahren zum Ausrichten von Elektroden von Zündkerzen |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5359111A (en) * | 1976-11-09 | 1978-05-27 | Nippon Soken Inc | Combustion chamber device of internal combustion engine |
JPS5434801U (ja) * | 1977-08-12 | 1979-03-07 | ||
JP2019015251A (ja) * | 2017-07-07 | 2019-01-31 | 株式会社クボタ | ディーゼルエンジン |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006144648A (ja) | 2004-11-18 | 2006-06-08 | Nissan Motor Co Ltd | 副室式火花点火内燃機関 |
CN102257687B (zh) * | 2009-01-23 | 2014-01-29 | 日本特殊陶业株式会社 | 内燃机用火花塞 |
DE102015113175A1 (de) * | 2015-08-10 | 2016-09-29 | Federal-Mogul Ignition Gmbh | Zündkerze |
JP6340453B2 (ja) * | 2016-06-27 | 2018-06-06 | 日本特殊陶業株式会社 | スパークプラグ |
-
2019
- 2019-04-16 JP JP2019077492A patent/JP6962965B2/ja active Active
-
2020
- 2020-04-08 US US16/843,200 patent/US10714906B1/en active Active
- 2020-04-08 CN CN202010277498.1A patent/CN111834918B/zh active Active
- 2020-04-15 DE DE102020204745.6A patent/DE102020204745A1/de active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5359111A (en) * | 1976-11-09 | 1978-05-27 | Nippon Soken Inc | Combustion chamber device of internal combustion engine |
JPS5434801U (ja) * | 1977-08-12 | 1979-03-07 | ||
JP2019015251A (ja) * | 2017-07-07 | 2019-01-31 | 株式会社クボタ | ディーゼルエンジン |
Also Published As
Publication number | Publication date |
---|---|
DE102020204745A1 (de) | 2020-10-22 |
US10714906B1 (en) | 2020-07-14 |
CN111834918B (zh) | 2022-03-01 |
CN111834918A (zh) | 2020-10-27 |
JP6962965B2 (ja) | 2021-11-05 |
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