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 ignitersInfo
- 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
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
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.
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)
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 |
-
1952
- 1952-10-31 GB GB2350853A patent/GB745016A/en not_active Expired
Cited By (12)
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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