JPS60153493U - spark plug - Google Patents
spark plugInfo
- Publication number
- JPS60153493U JPS60153493U JP4147784U JP4147784U JPS60153493U JP S60153493 U JPS60153493 U JP S60153493U JP 4147784 U JP4147784 U JP 4147784U JP 4147784 U JP4147784 U JP 4147784U JP S60153493 U JPS60153493 U JP S60153493U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- spark plug
- shaped
- tip
- center electrode
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図および第２図は、本考案になる第１の実施態様の
スパークプラグ側面図と上面図、第３図および第４図は
本考案の第２の実施態様についての上半部側面図と上面
図、そして第５図は、本考案と同種のスパークプラグと
本考案のスパークプラグとについて行なった希薄着火限
界比較評価グラフである。
図中、１・・・・・・棒状中心電極、２・・・・・・筒
状絶縁体、３・・・・・・筒状取付金具、４・・・・・
・棒状外側電極、５・・・・・・セラミック製の小棒状
片、６・川・・セラミック片、１ｂ・・・・・・搾穴、
４ｂ・・・・・・貫孔、Ａ・・・・・・放電空隙。1 and 2 are a side view and a top view of a spark plug of a first embodiment of the present invention, and FIGS. 3 and 4 are upper half side views of a second embodiment of the present invention. , a top view, and FIG. 5 are comparison evaluation graphs of the lean ignition limit of a spark plug of the same type as the present invention and a spark plug of the present invention. In the figure, 1... Rod-shaped center electrode, 2... Cylindrical insulator, 3... Cylindrical mounting bracket, 4...
- Rod-shaped outer electrode, 5... Small rod-shaped piece made of ceramic, 6... Ceramic piece, 1b... Squeezed hole,
4b...Through hole, A...Discharge gap.
Claims (2)
筒状取付金具に棒状外側電極を突設し、該外側電極の先
端部を折り曲げて中心電極先端面と対向せしめ放電空隙
を形成させたスパークプラグにおいて、 前記中心電極の先端部に該中心電極の径よりも小さいセ
ラミック製の棒状片を、その一部が放電空隙内に突出す
るように植設したことを特徴とするスパークプラグ。(1) A rod-shaped outer electrode is protruded from a cylindrical mounting bracket that is fitted around the rod-shaped center electrode via an insulator, and the tip of the outer electrode is bent to face the center electrode tip surface to form a discharge gap. In the spark plug thus formed, a ceramic rod-shaped piece smaller in diameter than the center electrode is implanted at the tip of the center electrode so that a part of the rod-like piece protrudes into the discharge gap. plug.
製の棒状片の先端面に対向する如くに貫孔を設け、該貫
孔をセラミック材で充填したことを特徴とする実用新案
登録請求の範囲第１項記載のスパークプラグ。(2) A utility model registration claim characterized in that a through-hole is provided in the discharge area of the rod-shaped outer electrode so as to face the tip end surface of the ceramic rod-shaped piece, and the through-hole is filled with a ceramic material. A spark plug as described in Range 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4147784U JPS60153493U (en) | 1984-03-22 | 1984-03-22 | spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4147784U JPS60153493U (en) | 1984-03-22 | 1984-03-22 | spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60153493U true JPS60153493U (en) | 1985-10-12 |
Family
ID=30551337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4147784U Pending JPS60153493U (en) | 1984-03-22 | 1984-03-22 | spark plug |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60153493U (en) |
-
1984
- 1984-03-22 JP JP4147784U patent/JPS60153493U/en active Pending
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