GB1049321A - Electrically semi-conductive vitreous body - Google Patents

Electrically semi-conductive vitreous body

Info

Publication number
GB1049321A
GB1049321A GB847663A GB847663A GB1049321A GB 1049321 A GB1049321 A GB 1049321A GB 847663 A GB847663 A GB 847663A GB 847663 A GB847663 A GB 847663A GB 1049321 A GB1049321 A GB 1049321A
Authority
GB
United Kingdom
Prior art keywords
insulator
mixture
glass
vitreous
alumina
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
GB847663A
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.)
Federal Mogul Ignition LLC
Original Assignee
Champion Spark Plug Co
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 Champion Spark Plug Co filed Critical Champion Spark Plug Co
Publication of GB1049321A publication Critical patent/GB1049321A/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

In an igniter, such as the sparking plug for an internal-combustion petrol engine, having a nose portion with a vitreous semi-conductor surface, the vitreous surface consists, in weight percentages, of copper oxide 25 to 98; chromium oxide 2 to 40; iron oxide 0 to 50, the balance being of compatible constituents. Preferably at least 2% of iron oxide is present together with some alumina. A number of examples of mixtures are given. The surface may be formed by firing a coating or several coatings of the mixture on an insulator, or a compacted body of the mixture may be secured to the insulator by a glass sealing material or a composite structure may be formed with layers between the insulator and the glass body, the layers progressively incorporating more of the material of the insulator, usually alumina, into the glass mixture.
GB847663A 1962-04-02 1963-04-02 Electrically semi-conductive vitreous body Expired GB1049321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18431362A 1962-04-02 1962-04-02

Publications (1)

Publication Number Publication Date
GB1049321A true GB1049321A (en) 1966-11-23

Family

ID=22676403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB847663A Expired GB1049321A (en) 1962-04-02 1963-04-02 Electrically semi-conductive vitreous body

Country Status (1)

Country Link
GB (1) GB1049321A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001876A1 (en) * 1985-09-17 1987-03-26 Robert Bosch Gmbh Spark plug with surface discharge section
DE3533124A1 (en) * 1985-09-17 1987-03-26 Bosch Gmbh Robert SPARK PLUG WITH GLIDING RANGE
GB2255590A (en) * 1991-05-14 1992-11-11 Ngk Spark Plug Co An igniter plug.
CN102410124A (en) * 2010-09-21 2012-04-11 成都泛华航空仪表电器有限公司 Highly reliable cuprous oxide semiconductor sparking plug sealing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001876A1 (en) * 1985-09-17 1987-03-26 Robert Bosch Gmbh Spark plug with surface discharge section
DE3533124A1 (en) * 1985-09-17 1987-03-26 Bosch Gmbh Robert SPARK PLUG WITH GLIDING RANGE
WO1987001877A1 (en) * 1985-09-17 1987-03-26 Robert Bosch Gmbh Surface-discharge spark plug
GB2255590A (en) * 1991-05-14 1992-11-11 Ngk Spark Plug Co An igniter plug.
GB2255590B (en) * 1991-05-14 1994-08-03 Ngk Spark Plug Co An igniter plug
CN102410124A (en) * 2010-09-21 2012-04-11 成都泛华航空仪表电器有限公司 Highly reliable cuprous oxide semiconductor sparking plug sealing method

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