GB745016A - Improvements in or relating to surface discharge sparking plugs or other igniters - Google Patents

Improvements in or relating to surface discharge sparking plugs or other igniters

Info

Publication number
GB745016A
GB745016A GB2350853A GB2350853A GB745016A GB 745016 A GB745016 A GB 745016A GB 2350853 A GB2350853 A GB 2350853A GB 2350853 A GB2350853 A GB 2350853A GB 745016 A GB745016 A GB 745016A
Authority
GB
United Kingdom
Prior art keywords
electrodes
copper oxide
insulator
ceramic
oxide layer
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
GB2350853A
Inventor
Frank Mannington Sayers
Donald Turner
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.)
LODGE PLUGS Ltd
Original Assignee
LODGE PLUGS 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 LODGE PLUGS Ltd filed Critical LODGE PLUGS Ltd
Priority to GB2350853A priority Critical patent/GB745016A/en
Publication of GB745016A publication Critical patent/GB745016A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00Sparking plugs
    • H01T13/52Sparking plugs characterised by a discharge along a surface

Landscapes

  • Spark Plugs (AREA)

Abstract

745,016. Ceramic-metal seals. LODGE PLUGS, Ltd. Oct. 31, 1952, No. 23508/53. Divded out of 26027/51. Class 36. [Also in Group XXVII] A surface discharge sparking plug or other igniter includes a pair of electrodes of a metal having a higher sintering or fusion temperature than that of copper oxide, an electric insulator separating said electrodes, and a continuous semi-conducting spark discharge path of copper oxide extending between said electrodes and intimately uniting the insulator therewith. In one arrangement, Fig. 1, the central electrode 11 is separated from the earthed electrode 12 by an insulator 10 which may be of ceramic material such as alumina, and the spark discharge path is formed by a layer 13 of copper oxide the active face of which is flush with the ends of the electrodes. In a modified arrangement, Fig. 2, the copper oxide layer 13 is formed on an insulating pellet 15 abutting the main insulator and a nickel-iron earthed electrode 14 is separate from but lies in contact with the plug body 16. The air gaps between the electrodes and insulator and the exposed surface of the latter are filled or coated with copper oxide which is fused or sintered at a temperature below the fusion or sintering temperature of the electrodes or ceramic insulating material. The copper oxide may be in either the cuprous or cupric form or may be a mixture of these, and may be applied by painting or spraying and adhesion and compacting obtained by heating above or preferably just below the oxide melting point of 1250‹ C. Control of the conducting properties of the oxide layer may be effected by adjustment of the sintering temperature and furnace atmosphere. Heating for five minutes at 1100‹ C. in an oxidizing atmosphere produces satisfactory results. The electrodes may be assembled on to the ceramic base after the copper oxide layer has been applied and fired, but it is preferred to assemble the electrodes on to the ceramic base before firing the copper oxide layer. The electrodes may be coated with copper before the firing operation to ensure more intimate contact.
GB2350853A 1952-10-31 1952-10-31 Improvements in or relating to surface discharge sparking plugs or other igniters Expired GB745016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2350853A GB745016A (en) 1952-10-31 1952-10-31 Improvements in or relating to surface discharge sparking plugs or other igniters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2350853A GB745016A (en) 1952-10-31 1952-10-31 Improvements in or relating to surface discharge sparking plugs or other igniters

Publications (1)

Publication Number Publication Date
GB745016A true GB745016A (en) 1956-02-15

Family

ID=10196741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2350853A Expired GB745016A (en) 1952-10-31 1952-10-31 Improvements in or relating to surface discharge sparking plugs or other igniters

Country Status (1)

Country Link
GB (1) GB745016A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899479A (en) * 1959-08-11 Spark plug having protruding tip
US2988663A (en) * 1957-12-18 1961-06-13 Gen Motors Corp Spark plug
JPS5087342U (en) * 1973-12-17 1975-07-24
US4307061A (en) * 1978-08-17 1981-12-22 Robert Bosch Gmbh Self-recovering soot detector, particularly to monitor carbon content in diesel engine exhaust gases
DE19629344A1 (en) * 1996-07-20 1998-01-29 Bremicker Auto Elektrik Fuel-air mixture ignition device for IC engine combustion chamber
WO2008017601A1 (en) * 2006-08-08 2008-02-14 Siemens Aktiengesellschaft Spark plug for high-frequency plasma ignition
CN104748150A (en) * 2013-12-26 2015-07-01 约翰新科公司 Improved high energy ignition spark igniter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899479A (en) * 1959-08-11 Spark plug having protruding tip
US2988663A (en) * 1957-12-18 1961-06-13 Gen Motors Corp Spark plug
JPS5087342U (en) * 1973-12-17 1975-07-24
JPS531468Y2 (en) * 1973-12-17 1978-01-17
US4307061A (en) * 1978-08-17 1981-12-22 Robert Bosch Gmbh Self-recovering soot detector, particularly to monitor carbon content in diesel engine exhaust gases
DE19629344A1 (en) * 1996-07-20 1998-01-29 Bremicker Auto Elektrik Fuel-air mixture ignition device for IC engine combustion chamber
DE19629344C2 (en) * 1996-07-20 2000-05-04 Bremicker Auto Elektrik Sliding spark spark plug for igniting a fuel-air mixture
WO2008017601A1 (en) * 2006-08-08 2008-02-14 Siemens Aktiengesellschaft Spark plug for high-frequency plasma ignition
CN104748150A (en) * 2013-12-26 2015-07-01 约翰新科公司 Improved high energy ignition spark igniter
EP2889970A3 (en) * 2013-12-26 2015-09-30 John Zink Company, L.L.C. Improved high energy ignition spark igniter
US9484717B2 (en) 2013-12-26 2016-11-01 Chentronics, Llc High energy ignition spark igniter
CN104748150B (en) * 2013-12-26 2017-06-23 约翰新科公司 Improved high-energy ignition spark lighter

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