JPS63117090U - - Google Patents
Info
- Publication number
- JPS63117090U JPS63117090U JP749587U JP749587U JPS63117090U JP S63117090 U JPS63117090 U JP S63117090U JP 749587 U JP749587 U JP 749587U JP 749587 U JP749587 U JP 749587U JP S63117090 U JPS63117090 U JP S63117090U
- Authority
- JP
- Japan
- Prior art keywords
- center electrode
- spark plug
- noble metal
- present
- utility
- 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.)
- Pending
Links
- 229910000510 noble metal Inorganic materials 0.000 claims 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
Landscapes
- Spark Plugs (AREA)
Description
第１図は、本考案の実施例における点火プラグ
の要部断面図、第２図は本考案の実施例の点火プ
ラグをあらわす一部切欠断面構成図、第３図は本
考案の実施例の要部をあらわす寸法説明図、第４
図Ａは本考案の実施例における点火プラグの中心
電極が摩耗した場合の中心電極形状をあらわす図
、第４図Ｂは従来例における点火プラグの中心電
極が摩耗した場合の中心電極形状をあらわす図で
ある。
１……中心電極、１ａ……銅合金部、１ｂ……
インコネル材部、２……接地電極、３……絶縁碍
子、４……ターミナルナツト、５……取付け金具
、６……ハウジング金具、８……白金チツプ。
Fig. 1 is a cross-sectional view of the main parts of a spark plug according to an embodiment of the present invention, Fig. 2 is a partially cutaway cross-sectional configuration diagram showing a spark plug according to an embodiment of the present invention, and Fig. 3 is a sectional view of a main part of a spark plug according to an embodiment of the present invention. Dimension explanatory drawing showing main parts, No. 4
Figure A is a diagram showing the shape of the center electrode when the center electrode of the spark plug is worn out in the embodiment of the present invention, and Figure 4B is a diagram showing the shape of the center electrode when the center electrode of the spark plug is worn out in the conventional example. It is. 1...Center electrode, 1a...Copper alloy part, 1b...
Inconel material part, 2...Ground electrode, 3...Insulator, 4...Terminal nut, 5...Mounting metal fittings, 6...Housing metal fittings, 8...Platinum chip.
Claims (1)
極を設けた点火プラグにおいて、中心電極の内部
に貴金属または貴金属合金からなるチツプを埋設
したことを特徴とする点火プラグ。 1. A spark plug having a center electrode provided with a predetermined discharge gap from a ground electrode, characterized in that a chip made of a noble metal or a noble metal alloy is embedded inside the center electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP749587U JPS63117090U (en) | 1987-01-23 | 1987-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP749587U JPS63117090U (en) | 1987-01-23 | 1987-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63117090U true JPS63117090U (en) | 1988-07-28 |
Family
ID=30791000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP749587U Pending JPS63117090U (en) | 1987-01-23 | 1987-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63117090U (en) |
-
1987
- 1987-01-23 JP JP749587U patent/JPS63117090U/ja active Pending
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