GB1322303A - Igniter plug - Google Patents
Igniter plugInfo
- 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
Links
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 239000012212 insulator Substances 0.000 abstract 2
- 229910052741 iridium Inorganic materials 0.000 abstract 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 abstract 2
- 238000003466 welding Methods 0.000 abstract 2
- 238000009760 electrical discharge machining Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
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.
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) |
Families Citing this family (11)
| 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 |
| ZA805008B (en) * | 1979-10-22 | 1981-08-26 | Champion Spark Plug Co | Spark igniter |
| US4771209B1 (en) * | 1979-10-22 | 1996-05-14 | Champion Spark Plug Co | Spark igniter having precious metal ground electrode inserts |
| 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 |
-
1971
- 1971-02-25 US US118862A patent/US3691419A/en not_active Expired - Lifetime
- 1971-12-06 CA CA129,385A patent/CA948943A/en not_active Expired
-
1972
- 1972-02-17 FR FR7205344A patent/FR2127636A5/fr not_active Expired
- 1972-02-17 GB GB733472A patent/GB1322303A/en not_active Expired
- 1972-02-25 DE DE19727207186U patent/DE7207186U/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA948943A (en) | 1974-06-11 |
| FR2127636A5 (en) | 1972-10-13 |
| DE7207186U (en) | 1972-07-13 |
| 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 |
