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GB1322303A - Igniter plug - Google Patents

Igniter plug

Info

Publication number
GB1322303A
GB1322303A GB733472A GB733472A GB1322303A GB 1322303 A GB1322303 A GB 1322303A GB 733472 A GB733472 A GB 733472A GB 733472 A GB733472 A GB 733472A GB 1322303 A GB1322303 A GB 1322303A
Authority
GB
United Kingdom
Prior art keywords
ground electrode
shell body
spark gap
electrode
feb
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.)
Expired
Application number
GB733472A
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of GB1322303A publication Critical patent/GB1322303A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/39—Selection of materials for electrodes

Landscapes

  • Spark Plugs (AREA)

Abstract

1322303 Igniter plugs GENERAL MOTORS CORP 17 Feb 1972 [25 Feb 1971] 7334/72 Heading F1B An igniter plug suitable for continuous sparking operation for extended periods of time at elevated temperatures of up to and including 1093‹C, comprises a shell body 2 forming the ground electrode, an insulator 5 and a centre electrode 9 positioned so that a spark gap 21 is formed in which the electrical discharges between the centre electrode and the ground electrode occur across the surface of the insulator exposed between the centre electrode and the ground electrode. The portion of the ground electrode adjacent the spark gap is formed of an annular insert 19 of ductile iridium metal having a high oxidation and spark erosion resistance at the elevated temperature. The annular insert 19 is welded to the shell body 2 by a narrow weld zone in which the iridium metal is both well-alloyed with the metal of the shell body and displays a minor degree of recrystallization. The weld zone between the shell and the insert is preferably achieved by a high energy narrow beam welding technique such as electron or laser beam welding. The spark gap may be exterior of the plug.
GB733472A 1971-02-25 1972-02-17 Igniter plug Expired GB1322303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11886271A 1971-02-25 1971-02-25

Publications (1)

Publication Number Publication Date
GB1322303A true GB1322303A (en) 1973-07-04

Family

ID=22381196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB733472A Expired GB1322303A (en) 1971-02-25 1972-02-17 Igniter plug

Country Status (5)

Country Link
US (1) US3691419A (en)
CA (1) CA948943A (en)
DE (1) DE7207186U (en)
FR (1) FR2127636A5 (en)
GB (1) GB1322303A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2134473C1 (en) * 1994-07-01 1999-08-10 Сиксиз Энд Севенс ПТИ, Лтд. Sparking plug system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229672A (en) * 1979-01-04 1980-10-21 Ford Motor Company Spark plug with low erosion electrode tip
US4396855A (en) * 1979-06-18 1983-08-02 Nissan Motor Co., Ltd. Plasma jet ignition plug with cavity in insulator discharge end
US4442375A (en) * 1979-09-14 1984-04-10 Ngk Spark Plug Co., Ltd. Electrical self-purification ignition plug
US4771209B1 (en) * 1979-10-22 1996-05-14 Champion Spark Plug Co Spark igniter having precious metal ground electrode inserts
ZA805008B (en) * 1979-10-22 1981-08-26 Champion Spark Plug Co Spark igniter
JPS6366879A (en) * 1986-09-06 1988-03-25 日本特殊陶業株式会社 Igniter plug
EP0377938B1 (en) * 1989-01-09 1995-10-11 Ngk Spark Plug Co., Ltd A spark plug structure
US5973443A (en) * 1996-05-06 1999-10-26 Alliedsignal Inc. Spark plug electrode tip for internal combustion engine
US5984668A (en) * 1998-08-14 1999-11-16 Landfill Technologies, Inc. Sparking device for promoting avoidance of short-circuiting
JP2002222686A (en) * 2000-11-24 2002-08-09 Denso Corp Spark plug and its manufacturing method
US8534041B2 (en) * 2009-12-23 2013-09-17 Unison Industries, Llc Apparatus and assembly for a spark igniter having tangential embedded pins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2134473C1 (en) * 1994-07-01 1999-08-10 Сиксиз Энд Севенс ПТИ, Лтд. Sparking plug system

Also Published As

Publication number Publication date
CA948943A (en) 1974-06-11
DE7207186U (en) 1972-07-13
FR2127636A5 (en) 1972-10-13
US3691419A (en) 1972-09-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee