GB850402A - Sparking plugs - Google Patents

Sparking plugs

Info

Publication number
GB850402A
GB850402A GB3899657A GB3899657A GB850402A GB 850402 A GB850402 A GB 850402A GB 3899657 A GB3899657 A GB 3899657A GB 3899657 A GB3899657 A GB 3899657A GB 850402 A GB850402 A GB 850402A
Authority
GB
United Kingdom
Prior art keywords
insulator
annular
gap
sparking plugs
gas
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
GB3899657A
Inventor
John Andrew Laird
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB3899657A priority Critical patent/GB850402A/en
Publication of GB850402A publication Critical patent/GB850402A/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
    • H01T13/52—Sparking plugs characterised by a discharge along a surface

Landscapes

  • Spark Plugs (AREA)

Abstract

850,402. Sparking plugs. LUCAS (INDUSTRIES) Ltd., J. Dec. 11, 1958 [Dec. 16, 1957], No. 38996/57. Class 7(4). The invention relates to sparking plugs of the kind in which the spark discharge occurs in part over a path provided on the insulator a which carries the high tension electrode b and in part across an annular or part annular gap g between the insulator and an earthed electrode on the metal body of the plug. An annular gas pocket e is formed between the insulator and the body at the interior side of the air gap. According to the invention a by-pass h is provided through which gas can flow freely between the engine cylinder and the pocket in the plug and so minimise gas flow through the spark gap. Several forms of by-pass passages are disclosed. Fig 6 shows a modification in which a plurality of electrodes n form a part annular gap g.
GB3899657A 1957-12-16 1957-12-16 Sparking plugs Expired GB850402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3899657A GB850402A (en) 1957-12-16 1957-12-16 Sparking plugs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3899657A GB850402A (en) 1957-12-16 1957-12-16 Sparking plugs

Publications (1)

Publication Number Publication Date
GB850402A true GB850402A (en) 1960-10-05

Family

ID=10406975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3899657A Expired GB850402A (en) 1957-12-16 1957-12-16 Sparking plugs

Country Status (1)

Country Link
GB (1) GB850402A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149852A (en) * 1983-11-18 1985-06-19 Ford Motor Co Spark plugs
EP0480886A1 (en) * 1990-10-12 1992-04-15 INDUSTRIE MAGNETI MARELLI S.p.A. A spark plug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149852A (en) * 1983-11-18 1985-06-19 Ford Motor Co Spark plugs
EP0480886A1 (en) * 1990-10-12 1992-04-15 INDUSTRIE MAGNETI MARELLI S.p.A. A spark plug

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