JPS5439734A - Spark plug - Google Patents
Spark plugInfo
- Publication number
- JPS5439734A JPS5439734A JP10697477A JP10697477A JPS5439734A JP S5439734 A JPS5439734 A JP S5439734A JP 10697477 A JP10697477 A JP 10697477A JP 10697477 A JP10697477 A JP 10697477A JP S5439734 A JPS5439734 A JP S5439734A
- Authority
- JP
- Japan
- Prior art keywords
- spark plug
- central electrode
- heat
- forging
- durability
- 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
Landscapes
- Spark Plugs (AREA)
Abstract
PURPOSE: To improve the heat transfer through central electrode, the heat value, the heat resistance and the durability, by extending and forging a high thermal conductivity metal such as copper into the flange-shaped tip of the central electrode.
CONSTITUTION: In the making.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10697477A JPS5439734A (en) | 1977-09-05 | 1977-09-05 | Spark plug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10697477A JPS5439734A (en) | 1977-09-05 | 1977-09-05 | Spark plug |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5439734A true JPS5439734A (en) | 1979-03-27 |
Family
ID=14447256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10697477A Pending JPS5439734A (en) | 1977-09-05 | 1977-09-05 | Spark plug |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5439734A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02204988A (en) * | 1989-02-02 | 1990-08-14 | Ngk Spark Plug Co Ltd | Spark plug of internal combustion engine |
FR2805093A1 (en) * | 2000-02-16 | 2001-08-17 | Sagem | SPARK PLUG AND MANUFACTURING METHOD THEREOF |
-
1977
- 1977-09-05 JP JP10697477A patent/JPS5439734A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02204988A (en) * | 1989-02-02 | 1990-08-14 | Ngk Spark Plug Co Ltd | Spark plug of internal combustion engine |
FR2805093A1 (en) * | 2000-02-16 | 2001-08-17 | Sagem | SPARK PLUG AND MANUFACTURING METHOD THEREOF |
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