JPS60134290U - internal combustion engine spark plug - Google Patents

internal combustion engine spark plug

Info

Publication number
JPS60134290U
JPS60134290U JP2170984U JP2170984U JPS60134290U JP S60134290 U JPS60134290 U JP S60134290U JP 2170984 U JP2170984 U JP 2170984U JP 2170984 U JP2170984 U JP 2170984U JP S60134290 U JPS60134290 U JP S60134290U
Authority
JP
Japan
Prior art keywords
combustion engine
internal combustion
spark plug
engine spark
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
Application number
JP2170984U
Other languages
Japanese (ja)
Inventor
石塚　隆史
Original Assignee
日産自動車株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to JP2170984U priority Critical patent/JPS60134290U/en
Publication of JPS60134290U publication Critical patent/JPS60134290U/en
Pending legal-status Critical Current

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  • 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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の点火プラグの正面図で要部を断面で
示したもの、第２図は第１図の発火部表・面のカーホン
堆積物の進行状態を示す正面部分図である。 図面に現わした符号の説明、１：中心電極、２：磁器絶
縁体、３：金属製栓体、５：ねじ部、６：接地電極、７
：火花間隔、８：絶縁体、９：ガス容積空間、１０：絶
縁体表面、１１：環状のくぼみ、１２：開口部、１３：
底部、１５：燃焼室、１７：栓体の内面、Ｋ：カーボン
堆積部（カーボン膜）。FIG. 1 is a front view of the spark plug of this invention, showing the main parts in cross section, and FIG. 2 is a partial front view showing the progress of carphone deposits on the surface of the ignition part of FIG. Explanation of the symbols shown in the drawings: 1: Center electrode, 2: Porcelain insulator, 3: Metal plug, 5: Threaded part, 6: Ground electrode, 7
: Spark interval, 8: Insulator, 9: Gas volume space, 10: Insulator surface, 11: Annular depression, 12: Opening, 13:
Bottom, 15: Combustion chamber, 17: Inner surface of plug body, K: Carbon deposit part (carbon film).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中心電極と、中心電極を包囲する磁器絶縁体と、接地電
極とを有する内燃機関の点火プラグにおいて、磁器絶縁
体の表面に、中心電極を中心とする環状の（ぼみを前記
磁器絶縁体の奥部に設けたことを特徴とする内燃機関の
点火プラグ。In a spark plug for an internal combustion engine that has a center electrode, a porcelain insulator surrounding the center electrode, and a ground electrode, a ring-shaped indentation (not shown) centered on the center electrode is formed on the surface of the porcelain insulator. A spark plug for an internal combustion engine that is characterized by being installed deep inside.
JP2170984U 1984-02-20 1984-02-20 internal combustion engine spark plug Pending JPS60134290U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2170984U JPS60134290U (en) 1984-02-20 1984-02-20 internal combustion engine spark plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2170984U JPS60134290U (en) 1984-02-20 1984-02-20 internal combustion engine spark plug

Publications (1)

Publication Number Publication Date
JPS60134290U true JPS60134290U (en) 1985-09-06

Family

ID=30513348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2170984U Pending JPS60134290U (en) 1984-02-20 1984-02-20 internal combustion engine spark plug

Country Status (1)

Country Link
JP (1) JPS60134290U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010128592A1 (en) * 2009-05-07 2010-11-11 日本特殊陶業株式会社 Spark plug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010128592A1 (en) * 2009-05-07 2010-11-11 日本特殊陶業株式会社 Spark plug
JP5167408B2 (en) * 2009-05-07 2013-03-21 日本特殊陶業株式会社 Spark plug
US8629605B2 (en) 2009-05-07 2014-01-14 Ngk Spark Plug Co., Ltd. Spark plug having shaped insulator

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