JP6986042B2 - 点火プラグ - Google Patents
点火プラグ Download PDFInfo
- Publication number
- JP6986042B2 JP6986042B2 JP2019077488A JP2019077488A JP6986042B2 JP 6986042 B2 JP6986042 B2 JP 6986042B2 JP 2019077488 A JP2019077488 A JP 2019077488A JP 2019077488 A JP2019077488 A JP 2019077488A JP 6986042 B2 JP6986042 B2 JP 6986042B2
- Authority
- JP
- Japan
- Prior art keywords
- region
- cap portion
- spark plug
- hole
- 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.)
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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
- H01T13/02—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
- 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
- H01T13/00—Sparking plugs
- H01T13/02—Details
- H01T13/08—Mounting, fixing or sealing of sparking plugs, e.g. in combustion 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
- 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
- H01T13/54—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Spark Plugs (AREA)
Description
13 中心電極
20 主体金具
30 接地電極
31 接地電極の一端部
33 火花ギャップ
40 キャップ部
41 貫通孔
44 キャップ部の内面
45 第1領域
46 第2領域
48 内側開口端
52,57 段
O 軸線
Claims (4)
- 中心電極と、
前記中心電極を外周から絶縁保持する主体金具と、
前記中心電極と自身の一端部との間に火花ギャップを形成する接地電極と、
前記主体金具に接続され、前記中心電極と前記接地電極の一端部とを先端側から覆うと共に、前記接地電極よりも先端側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、
前記キャップ部の内面のうち前記貫通孔の内側開口端よりも先端側の第1領域に、少なくとも1つの段が形成され、
前記段の一つの大きさは、前記内面の周方向における長さが、前記内面の軸線方向における長さよりも長い点火プラグ。 - 中心電極と、
前記中心電極を外周から絶縁保持する主体金具と、
前記中心電極と自身の一端部との間に火花ギャップを形成する接地電極と、
前記主体金具に接続され、前記中心電極と前記接地電極の一端部とを先端側から覆うと共に、前記接地電極よりも先端側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、
前記キャップ部の内面のうち前記貫通孔の内側開口端よりも先端側の第1領域に、少なくとも1つの段が形成され、
前記段は、前記内面の全周に亘って連続している点火プラグ。 - 前記段の一つの大きさは、前記内面の周方向における長さが、前記内面の軸線方向における長さよりも長い請求項2記載の点火プラグ。
- 前記段は、前記キャップ部の前記内面のうち、前記接地電極よりも先端側、且つ、前記内側開口端よりも後端側の第2領域にさらに形成される請求項1から3のいずれかに記載の点火プラグ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019077488A JP6986042B2 (ja) | 2019-04-16 | 2019-04-16 | 点火プラグ |
CN202010267899.9A CN111834917B (zh) | 2019-04-16 | 2020-04-08 | 火花塞 |
US16/843,977 US10714908B1 (en) | 2019-04-16 | 2020-04-09 | Spark plug |
DE102020204698.0A DE102020204698A1 (de) | 2019-04-16 | 2020-04-14 | Zündkerze |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019077488A JP6986042B2 (ja) | 2019-04-16 | 2019-04-16 | 点火プラグ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020177743A JP2020177743A (ja) | 2020-10-29 |
JP6986042B2 true JP6986042B2 (ja) | 2021-12-22 |
Family
ID=71519910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019077488A Active JP6986042B2 (ja) | 2019-04-16 | 2019-04-16 | 点火プラグ |
Country Status (4)
Country | Link |
---|---|
US (1) | US10714908B1 (ja) |
JP (1) | JP6986042B2 (ja) |
CN (1) | CN111834917B (ja) |
DE (1) | DE102020204698A1 (ja) |
Families Citing this family (5)
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 |
JP7316253B2 (ja) * | 2020-08-04 | 2023-07-27 | 日本特殊陶業株式会社 | スパークプラグ |
DE102021204189A1 (de) | 2021-04-27 | 2022-10-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Vorkammerzündkerze mit exakt einstellbarem Elektrodenabstand sowie Verfahren hierzu |
JP2023010082A (ja) * | 2021-07-09 | 2023-01-20 | 日本特殊陶業株式会社 | スパークプラグ |
DE102021214624A1 (de) * | 2021-12-17 | 2023-06-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Zündkerze mit Masseelektrode in Aussparung an Gehäusestirnseite |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5434801U (ja) * | 1977-08-12 | 1979-03-07 | ||
JP2006144648A (ja) | 2004-11-18 | 2006-06-08 | Nissan Motor Co Ltd | 副室式火花点火内燃機関 |
US8584648B2 (en) * | 2010-11-23 | 2013-11-19 | Woodward, Inc. | Controlled spark ignited flame kernel flow |
US9850805B2 (en) * | 2010-12-31 | 2017-12-26 | Prometheus Applied Technologies, Llc | Prechamber ignition system |
EP2751408B1 (en) * | 2011-09-03 | 2024-03-20 | Prometheus Applied Technologies, LLC | Method and apparatus for achieving high power flame jets and reducing quenching and autoignition in prechamber spark plugs for gas engines |
CN102709816A (zh) * | 2012-06-11 | 2012-10-03 | 李忠尧 | 一种封闭式点火器 |
CN203218710U (zh) * | 2013-05-03 | 2013-09-25 | 张蝶儿 | 一种高效点火的火花塞 |
JP6015678B2 (ja) * | 2014-01-09 | 2016-10-26 | 株式会社デンソー | 内燃機関用のスパークプラグ |
US9653886B2 (en) * | 2015-03-20 | 2017-05-16 | Woodward, Inc. | Cap shielded ignition system |
-
2019
- 2019-04-16 JP JP2019077488A patent/JP6986042B2/ja active Active
-
2020
- 2020-04-08 CN CN202010267899.9A patent/CN111834917B/zh active Active
- 2020-04-09 US US16/843,977 patent/US10714908B1/en active Active
- 2020-04-14 DE DE102020204698.0A patent/DE102020204698A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
CN111834917A (zh) | 2020-10-27 |
DE102020204698A1 (de) | 2020-10-22 |
CN111834917B (zh) | 2022-03-08 |
JP2020177743A (ja) | 2020-10-29 |
US10714908B1 (en) | 2020-07-14 |
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