JPS55112872A - Sooting preventing device for spark plug - Google Patents

Sooting preventing device for spark plug

Info

Publication number
JPS55112872A
JPS55112872A JP2000779A JP2000779A JPS55112872A JP S55112872 A JPS55112872 A JP S55112872A JP 2000779 A JP2000779 A JP 2000779A JP 2000779 A JP2000779 A JP 2000779A JP S55112872 A JPS55112872 A JP S55112872A
Authority
JP
Japan
Prior art keywords
spark plug
carbon
high tension
during
exhaust stroke
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
JP2000779A
Other languages
Japanese (ja)
Inventor
Taro Tanaka
Yoji Kato
Akihiro Kobayashi
Takeshi Nomura
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.)
Soken Inc
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP2000779A priority Critical patent/JPS55112872A/en
Publication of JPS55112872A publication Critical patent/JPS55112872A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression

Abstract

PURPOSE:To prevent misfire caused by a sooty spark plug by applying a high tension to the spark plug during the exhaust stroke to remove the carbon adhering to the spark plug. CONSTITUTION:A first high tension of approximately -10KV is applied to a spark plug 20 by a first high tension generator 30 through a distributor 50 during the exhaust stroke. The high tension raises the temperature of the carbon adhering to the insulator so that the carbon is removed in the form of carbon dioxide. The carbon is efficiently oxidized as the exhaust valve 9 opens during the exhaust stroke and the secondary air is introduced into the combustion chamber 2 through a reed valve 11 and a secondary air supply pipe 10 to an exhaust port 8 so that sufficient fresh air is supplied around the spark plug 20.
JP2000779A 1979-02-22 1979-02-22 Sooting preventing device for spark plug Pending JPS55112872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000779A JPS55112872A (en) 1979-02-22 1979-02-22 Sooting preventing device for spark plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000779A JPS55112872A (en) 1979-02-22 1979-02-22 Sooting preventing device for spark plug

Publications (1)

Publication Number Publication Date
JPS55112872A true JPS55112872A (en) 1980-09-01

Family

ID=12015059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000779A Pending JPS55112872A (en) 1979-02-22 1979-02-22 Sooting preventing device for spark plug

Country Status (1)

Country Link
JP (1) JPS55112872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724938A (en) * 1990-09-26 1998-03-10 Yamaha Hatsudoki Kabushiki Kaisha Ignition system for a two cycle engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724938A (en) * 1990-09-26 1998-03-10 Yamaha Hatsudoki Kabushiki Kaisha Ignition system for a two cycle engine

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