JP2018018751A - スパークプラグ - Google Patents
スパークプラグ Download PDFInfo
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- JP2018018751A JP2018018751A JP2016149496A JP2016149496A JP2018018751A JP 2018018751 A JP2018018751 A JP 2018018751A JP 2016149496 A JP2016149496 A JP 2016149496A JP 2016149496 A JP2016149496 A JP 2016149496A JP 2018018751 A JP2018018751 A JP 2018018751A
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- Prior art keywords
- tip
- base material
- electrode
- electrode base
- chip
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- 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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Abstract
Description
12 接地電極(第2電極)
17,30 中心電極(第1電極)
18,31 電極母材
19,34 チップ
21,35 放電面
22,36 側面
26,41 溶接部
50,70,90 接地電極(第1電極)
51,71,91 電極母材
54,74 チップ
55,75 放電面
56,76 側面
61,81 溶接部
A,B 距離
C,E 長さ
D 直径
O 中心軸
Claims (4)
- 貴金属を含有し自身の中心軸方向に延びるチップと、溶接部を介して前記チップが接合される電極母材とを備える第1電極と、
火花ギャップを介して前記チップと対向する第2電極と、を備えるスパークプラグであって、
前記チップは、前記第2電極と対向する放電面と、前記放電面および前記電極母材に連絡し外部に露出する側面と、を備え、
前記側面のうち少なくとも一部に、前記中心軸方向において前記放電面から所定の距離Aだけ離れた位置から前記電極母材から所定の距離Bだけ離れた位置までの部位に、前記溶接部の一部があることを特徴とするスパークプラグ。 - 前記所定の距離Aは、前記所定の距離Bより大きいことを特徴とする請求項1記載のスパークプラグ。
- 前記所定の距離A及び前記所定の距離Bは、前記側面における前記溶接部の前記中心軸方向の長さより大きいことを特徴とする請求項1又は2に記載のスパークプラグ。
- 前記チップは円柱状であると共に少なくとも前記中心軸を通る部分において前記溶接部を介して前記電極母材に接合されており、
前記チップの前記中心軸を含む断面において、前記中心軸と直交する方向における前記側面から前記溶接部と前記溶接母材との界面までの長さのうち最も短い長さは、前記チップの直径の1/4以上1/2未満であることを特徴とする請求項1から3のいずれかに記載のスパークプラグ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016149496A JP2018018751A (ja) | 2016-07-29 | 2016-07-29 | スパークプラグ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016149496A JP2018018751A (ja) | 2016-07-29 | 2016-07-29 | スパークプラグ |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2018018751A true JP2018018751A (ja) | 2018-02-01 |
Family
ID=61076309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016149496A Ceased JP2018018751A (ja) | 2016-07-29 | 2016-07-29 | スパークプラグ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2018018751A (ja) |
-
2016
- 2016-07-29 JP JP2016149496A patent/JP2018018751A/ja not_active Ceased
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