JPS5395443A - Sparking plug for internal-combustion engine - Google Patents

Sparking plug for internal-combustion engine

Info

Publication number
JPS5395443A
JPS5395443A JP1016777A JP1016777A JPS5395443A JP S5395443 A JPS5395443 A JP S5395443A JP 1016777 A JP1016777 A JP 1016777A JP 1016777 A JP1016777 A JP 1016777A JP S5395443 A JPS5395443 A JP S5395443A
Authority
JP
Japan
Prior art keywords
internal
sparking plug
combustion engine
gap
sparking
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.)
Granted
Application number
JP1016777A
Other languages
Japanese (ja)
Other versions
JPS596472B2 (en
Inventor
Yutaka Ninomiya
Hiroaki Makino
Makoto Yato
Kanji Higuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP1016777A priority Critical patent/JPS596472B2/en
Publication of JPS5395443A publication Critical patent/JPS5395443A/en
Publication of JPS596472B2 publication Critical patent/JPS596472B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Spark Plugs (AREA)

Abstract

PURPOSE: To improve stain resistance and ignitability of a sparking plug by designing at the tip end of the inside hole of an insulator a large-diametered portion which has an I.D. larger than the O.D. of a central electrode so as to provide a secondary spark gap, a high-voltage spark developed across the gap through the surface of the portion.
COPYRIGHT: (C)1978,JPO&Japio
JP1016777A 1977-01-31 1977-01-31 Spark plug for internal combustion engine Expired JPS596472B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1016777A JPS596472B2 (en) 1977-01-31 1977-01-31 Spark plug for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1016777A JPS596472B2 (en) 1977-01-31 1977-01-31 Spark plug for internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5395443A true JPS5395443A (en) 1978-08-21
JPS596472B2 JPS596472B2 (en) 1984-02-10

Family

ID=11742714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1016777A Expired JPS596472B2 (en) 1977-01-31 1977-01-31 Spark plug for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS596472B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189333A (en) * 1990-08-08 1993-02-23 Ngk Spark Plug Co., Ltd. Multi-gap spark plug for an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189333A (en) * 1990-08-08 1993-02-23 Ngk Spark Plug Co., Ltd. Multi-gap spark plug for an internal combustion engine

Also Published As

Publication number Publication date
JPS596472B2 (en) 1984-02-10

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