GB2242703B - Spark plug for internal combusiton engine - Google Patents
Spark plug for internal combusiton engineInfo
- Publication number
- GB2242703B GB2242703B GB9007659A GB9007659A GB2242703B GB 2242703 B GB2242703 B GB 2242703B GB 9007659 A GB9007659 A GB 9007659A GB 9007659 A GB9007659 A GB 9007659A GB 2242703 B GB2242703 B GB 2242703B
- Authority
- GB
- United Kingdom
- Prior art keywords
- spark plug
- electrode
- inner core
- outer layer
- outer shell
- 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.)
- Revoked
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
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/32—Sparking plugs characterised by features of the electrodes or insulation characterised by features of the earthed electrode
-
- 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
-
- 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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
Abstract
The spark plug comprises an outer shell (1), a central electrode (2), an insulator (3) surrounding the central electrode (2) and at least one ground electrode (4B) connected at at least one point to the outer shell (1). At least one (4B) of the electrodes consists of an outer layer made of a corrosion resistant material (e.g. nickel or a nickel alloy) and of an inner core made of a material having good thermal conductivity characteristics and a good corrosion and erosion resistance (e.g. silver or a silver alloy). In front of the bottom end of the other electrode (2), i.e. at the spark gap (5) the inner core projects through the outer layer perpendicularly to the longitudinal axis of said one electrode (4B). Several embodiments of the spark plug as well as several methods for making the electrodes of the spark plug are described.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9007659A GB2242703B (en) | 1990-04-04 | 1990-04-04 | Spark plug for internal combusiton engine |
AU76822/91A AU7682291A (en) | 1990-04-04 | 1991-04-02 | Spark plug for internal combustion engine |
DE69120677T DE69120677T2 (en) | 1990-04-04 | 1991-04-02 | SPARK PLUG FOR INTERNAL COMBUSTION ENGINE |
PCT/US1991/002239 WO1991015887A1 (en) | 1990-04-04 | 1991-04-02 | Spark plug for internal combustion engine |
EP91907630A EP0537156B1 (en) | 1990-04-04 | 1991-04-02 | Spark plug for internal combustion engine |
AT91907630T ATE140107T1 (en) | 1990-04-04 | 1991-04-02 | SPARK PLUG FOR COMBUSTION ENGINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9007659A GB2242703B (en) | 1990-04-04 | 1990-04-04 | Spark plug for internal combusiton engine |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9007659D0 GB9007659D0 (en) | 1990-05-30 |
GB2242703A GB2242703A (en) | 1991-10-09 |
GB2242703B true GB2242703B (en) | 1994-02-16 |
Family
ID=10673905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9007659A Revoked GB2242703B (en) | 1990-04-04 | 1990-04-04 | Spark plug for internal combusiton engine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0537156B1 (en) |
AT (1) | ATE140107T1 (en) |
AU (1) | AU7682291A (en) |
DE (1) | DE69120677T2 (en) |
GB (1) | GB2242703B (en) |
WO (1) | WO1991015887A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2242703B (en) * | 1990-04-04 | 1994-02-16 | Champion Spark Plug Europ | Spark plug for internal combusiton engine |
GB2276207B (en) * | 1993-03-18 | 1996-09-04 | Nippon Denso Co | A spark plug and a method of producing the same |
DE69323192T2 (en) * | 1993-08-02 | 1999-06-17 | Cooper Automotive Products, Inc. (N.D.Ges.D. Staates Delaware), Houston, Tex. | Spark plug electrodes |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2047339A (en) * | 1979-03-13 | 1980-11-26 | Texas Instruments Inc | Spark plugs and center electrodes therefor |
GB2068453A (en) * | 1979-12-07 | 1981-08-12 | Texas Instruments Inc | Spark plugs and center electrodes therefor |
US4585421A (en) * | 1983-11-23 | 1986-04-29 | The National Machinery Company | Method of making copper-clad bimetal electrodes for spark plugs |
EP0537156A1 (en) * | 1990-04-04 | 1993-04-21 | Cooper Ind Inc | Spark plug for internal combustion engine. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146370A (en) * | 1962-06-21 | 1964-08-25 | Gen Motors Corp | Spark plug with improved electrode |
US3356882A (en) * | 1965-10-21 | 1967-12-05 | Ford Motor Co | Spark plug having the center electrode sheath with a nickel alloy |
US3967149A (en) * | 1973-07-05 | 1976-06-29 | Champion Spark Plug Company | Spark plug |
US4351095A (en) * | 1977-12-12 | 1982-09-28 | United Kingdom Atomic Energy Authority | Method of making spark plugs |
CA1138626A (en) * | 1978-12-16 | 1983-01-04 | Gkn Floform Limited | Manufacture of bi-metal electrodes for spark plugs |
FR2451648A1 (en) * | 1979-03-13 | 1980-10-10 | Texas Instruments Inc | Spar plug middle electrode has corrosion and erosion resistant core - with sheath of higher thermal conductivity |
US4526551A (en) * | 1980-05-30 | 1985-07-02 | Champion Spark Plug Company | Production of electrodes |
US4695759A (en) * | 1981-10-29 | 1987-09-22 | Champion Spark Plug Company | Method for producing a composite center electrode and an electrode |
-
1990
- 1990-04-04 GB GB9007659A patent/GB2242703B/en not_active Revoked
-
1991
- 1991-04-02 DE DE69120677T patent/DE69120677T2/en not_active Expired - Fee Related
- 1991-04-02 AT AT91907630T patent/ATE140107T1/en not_active IP Right Cessation
- 1991-04-02 WO PCT/US1991/002239 patent/WO1991015887A1/en active IP Right Grant
- 1991-04-02 EP EP91907630A patent/EP0537156B1/en not_active Expired - Lifetime
- 1991-04-02 AU AU76822/91A patent/AU7682291A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2047339A (en) * | 1979-03-13 | 1980-11-26 | Texas Instruments Inc | Spark plugs and center electrodes therefor |
GB2068453A (en) * | 1979-12-07 | 1981-08-12 | Texas Instruments Inc | Spark plugs and center electrodes therefor |
US4585421A (en) * | 1983-11-23 | 1986-04-29 | The National Machinery Company | Method of making copper-clad bimetal electrodes for spark plugs |
EP0537156A1 (en) * | 1990-04-04 | 1993-04-21 | Cooper Ind Inc | Spark plug for internal combustion engine. |
Also Published As
Publication number | Publication date |
---|---|
DE69120677T2 (en) | 1996-12-12 |
AU7682291A (en) | 1991-10-30 |
GB2242703A (en) | 1991-10-09 |
EP0537156A4 (en) | 1994-04-27 |
ATE140107T1 (en) | 1996-07-15 |
WO1991015887A1 (en) | 1991-10-17 |
DE69120677D1 (en) | 1996-08-08 |
EP0537156A1 (en) | 1993-04-21 |
GB9007659D0 (en) | 1990-05-30 |
EP0537156B1 (en) | 1996-07-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0418055B1 (en) | Spark plug | |
KR890005940A (en) | Spark Plugs for Internal Combustion Engines | |
BR9901907A (en) | Resistant spark plug. | |
US6380664B1 (en) | Spark plug having an internal conductor configuration | |
US4963717A (en) | Glow plug for internal combustion engine | |
US4307316A (en) | Self cleaning spark plug | |
GB2242703B (en) | Spark plug for internal combusiton engine | |
GB1497641A (en) | Spark plug for an internal combustion engine | |
SE8201505L (en) | RESISTOR PIN AND PROCEDURE FOR MANUFACTURING SUDANA | |
KR950701462A (en) | Electrically conductive sealling compound for sparking plugs | |
ES8405206A1 (en) | High-tension spark plug. | |
KR870005491A (en) | Thermocouple spark plugs and manufacturing method thereof | |
GB1329533A (en) | Flame glow plugs serving as starting aids for diesel engines | |
JPH05159856A (en) | Spark plug | |
ATE130707T1 (en) | IMPROVED SPARK PLUG FOR COMBUSTION ENGINE. | |
ES441028A1 (en) | Spark plug electrode | |
GB2024929A (en) | Spark plug electrode | |
US4131817A (en) | Spark plug power enhancer | |
JPH05242953A (en) | Multi-pole spark plug and molding method for outside electrode | |
GB2039605A (en) | Spark plug electrodes | |
JPH0737675A (en) | Spark plug for internal combustion engine | |
JPS5949180A (en) | Spark plug for high pressure compression internal combustionengine | |
EP0203953A1 (en) | Spark plug | |
JPH01155293U (en) | ||
JPS6354947U (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
773K | Patent revoked under sect. 73(2)/1977 |