JPS6365986U - - Google Patents

Info

Publication number
JPS6365986U
JPS6365986U JP16070386U JP16070386U JPS6365986U JP S6365986 U JPS6365986 U JP S6365986U JP 16070386 U JP16070386 U JP 16070386U JP 16070386 U JP16070386 U JP 16070386U JP S6365986 U JPS6365986 U JP S6365986U
Authority
JP
Japan
Prior art keywords
insulator
creeping discharge
firing part
type plug
discharge type
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
JP16070386U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP16070386U priority Critical patent/JPS6365986U/ja
Publication of JPS6365986U publication Critical patent/JPS6365986U/ja
Pending legal-status Critical Current

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  • Spark Plugs (AREA)

Description

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

第1図は本考案の一実施例を示す沿面放電型プ
ラグの要部断面図、第2図は第1図の発火部の拡
大断面図第3図は本考案の他の実施例を示す発火
部の拡大断面図、第4図は従来の沿面放電型プラ
グの発火部の断面図である。 1……主体金具、1a……内腔、1b……円錐
段座面、1d……主体金具発火部内壁、2……絶
縁体、2d……径小孔、2c……径大孔、2f…
…絶縁体発火部端面、3……中心電極、3a……
先端部、3c……放電端部周縁、3d……径小部
、7……発熱体、10……環状突所。
Fig. 1 is a cross-sectional view of essential parts of a creeping discharge type plug showing one embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of the ignition part of Fig. 1, and Fig. 3 is a ignition showing another embodiment of the present invention. FIG. 4 is a sectional view of the ignition part of a conventional creeping discharge type plug. 1... Metal shell, 1a... Inner cavity, 1b... Conical step seating surface, 1d... Inner wall of the firing part of the metal shell, 2... Insulator, 2d... Small diameter hole, 2c... Large diameter hole, 2f …
...Insulator firing part end face, 3...Center electrode, 3a...
Tip portion, 3c... Discharge end periphery, 3d... Small diameter portion, 7... Heating element, 10... Annular protrusion.

Claims (1)

【実用新案登録請求の範囲】 (1) 主体金具の内腔の先端円錐段座面に当接し
て絶縁体を収納固定し、前記絶縁体の軸孔内に保
持された中心電極の放電端部周縁と対向する主体
金具発火部内壁との間に絶縁体発火部端面に沿つ
て環状の火花間隙を形成して成る沿面放電型プラ
グにおいて、前記絶縁体発火部端面の近傍の絶縁
体内部に発熱体を埋設したことを特徴とする沿面
放電型プラグ。 (2) 前記火花間隙が前記中心電極の先端部を径
小にして前記絶縁体軸孔との間に環状空所を設け
てなる空間放電間隙と前記絶縁体発火部端面に沿
う沿面放電間隙とからなる実用新案登録請求の範
囲第1項記載の沿面放電型プラグ。
[Claims for Utility Model Registration] (1) A discharging end of a center electrode that abuts against the conical step surface of the inner cavity of the main metal fitting to house and fix an insulator, and is held in the shaft hole of the insulator. In a creeping discharge type plug in which an annular spark gap is formed along the end face of the insulator firing part between the periphery and the inner wall of the firing part of the metal shell opposing the periphery, heat is generated inside the insulator near the end face of the insulator firing part. A creeping discharge type plug characterized by a buried body. (2) A spatial discharge gap in which the spark gap is formed by reducing the diameter of the tip of the center electrode and providing an annular space between it and the insulator shaft hole; and a creeping discharge gap along the end surface of the insulator firing part. A creeping discharge type plug according to claim 1 of the utility model registration claim.
JP16070386U 1986-10-20 1986-10-20 Pending JPS6365986U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16070386U JPS6365986U (en) 1986-10-20 1986-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16070386U JPS6365986U (en) 1986-10-20 1986-10-20

Publications (1)

Publication Number Publication Date
JPS6365986U true JPS6365986U (en) 1988-04-30

Family

ID=31086329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16070386U Pending JPS6365986U (en) 1986-10-20 1986-10-20

Country Status (1)

Country Link
JP (1) JPS6365986U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008218204A (en) * 2007-03-05 2008-09-18 Miyama Kk Multi-point ignition plug
JP2010003479A (en) * 2008-06-19 2010-01-07 Ngk Spark Plug Co Ltd Plasma jet spark plug and its electricity conduction controlling device
JP2014202184A (en) * 2013-04-09 2014-10-27 京セラ株式会社 Creepage discharge device and internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008218204A (en) * 2007-03-05 2008-09-18 Miyama Kk Multi-point ignition plug
JP2010003479A (en) * 2008-06-19 2010-01-07 Ngk Spark Plug Co Ltd Plasma jet spark plug and its electricity conduction controlling device
JP2014202184A (en) * 2013-04-09 2014-10-27 京セラ株式会社 Creepage discharge device and internal combustion engine

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