GB1488677A - Spark plug incorporating an auxiliary resistor to provide a low noise level - Google Patents
Spark plug incorporating an auxiliary resistor to provide a low noise levelInfo
- Publication number
- GB1488677A GB1488677A GB42292/74A GB4229274A GB1488677A GB 1488677 A GB1488677 A GB 1488677A GB 42292/74 A GB42292/74 A GB 42292/74A GB 4229274 A GB4229274 A GB 4229274A GB 1488677 A GB1488677 A GB 1488677A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seal
- glass
- resistor
- semi
- conductive material
- 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
- 239000004020 conductor Substances 0.000 abstract 4
- 239000011521 glass Substances 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 2
- 229910052845 zircon Inorganic materials 0.000 abstract 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract 2
- 229910021193 La 2 O 3 Inorganic materials 0.000 abstract 1
- 229910010413 TiO 2 Inorganic materials 0.000 abstract 1
- -1 TiO 2 Chemical class 0.000 abstract 1
- 239000005287 barium borate glass Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 239000005388 borosilicate glass Substances 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- 229910052570 clay Inorganic materials 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 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
- H01T13/40—Sparking plugs structurally combined with other devices
- H01T13/41—Sparking plugs structurally combined with other devices with interference suppressing or shielding means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/025—Reducing interference from ignition apparatus of fuel engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Spark Plugs (AREA)
- Non-Adjustable Resistors (AREA)
Abstract
1488677 Sparking-plug NIPPON TOKUSHU TOGYO KK 30 Sept 1974 [28 Sept 1973] 42292/74 Heading F1B [Also in Division H1] To increase the effective length of the suppressor resistor 4 in the central bore 1b of spark-plug 1 it is sealed to electrode 2, and/or terminal screw 3 by an auxiliary resistor seal 6 and/or 5, comprising a glass and a semi-conductive material. As shown, the seal 5 is of conventional conductive glass, and seal 6 is composed of 10 to 60% semi-conductive material, 0 to 30% aggregate and 40-90% glass. The semi-conductive material consists of at least one metal oxide, e.g. TiO 2 , Nb 2 O 5 , NiO, La 2 O 3 , ZrO 2 , ThO 2 and ZnO and at least one metal carbide, e.g. TiC, SiC and B 4 C, the carbide constituting 0À1 to 30%, preferably 0À5 to 10 wt. per cent of the total weight of the seal. The aggregate is bentonite, clay, zircon or the mixture thereof, and the glass may be borosilicate glass. The resistance of the seal is preferably 100 to 3,000 #/cm<SP>2</SP>, and that of the resistor 4, 1 to 30 k#/cm<SP>2</SP>. The composition of the resistor 4 is preferably 0À2 to 4% of carbonaceous material, e.g. carbon black or glycerin, 10 to 70% of aggregate, e.g. clay or zircon, 0 to 20% of semi-conductive material, e.g. a mixture of TiO and TiC, and the remainder of barium borate glass. Specific Examples of seal and resistor compositions are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10835773A JPS5520355B2 (en) | 1973-09-28 | 1973-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1488677A true GB1488677A (en) | 1977-10-12 |
Family
ID=14482661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42292/74A Expired GB1488677A (en) | 1973-09-28 | 1974-09-30 | Spark plug incorporating an auxiliary resistor to provide a low noise level |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3903453A (en) |
| JP (1) | JPS5520355B2 (en) |
| DE (1) | DE2446365A1 (en) |
| FR (1) | FR2246997B1 (en) |
| GB (1) | GB1488677A (en) |
| ZA (1) | ZA746080B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53107695A (en) * | 1977-03-02 | 1978-09-19 | Ngk Spark Plug Co | Resistance body composition for ignition plug containing resistance |
| US4112330A (en) * | 1977-05-20 | 1978-09-05 | General Motors Corporation | Metallized glass seal resistor compositions and resistor spark plugs |
| US4193012A (en) * | 1978-10-10 | 1980-03-11 | Champion Spark Plug Company | Spark plug seal |
| JPS6018621B2 (en) * | 1981-05-21 | 1985-05-11 | 日本碍子株式会社 | engine parts |
| US4460847A (en) * | 1981-07-27 | 1984-07-17 | Champion Spark Plug Company | Spark plug |
| EP0405622A3 (en) * | 1986-02-19 | 1991-01-09 | Vlsi Packaging Materials, Inc. | Low melting glass composition |
| DE3905315A1 (en) * | 1989-02-21 | 1990-08-23 | Beru Werk Ruprecht Gmbh Co A | Electroconductive glass composition |
| JP3497001B2 (en) * | 1995-03-31 | 2004-02-16 | 日本特殊陶業株式会社 | Spark plug |
| JPH11214119A (en) * | 1998-01-28 | 1999-08-06 | Ngk Spark Plug Co Ltd | Spark plug including resistor |
| US6557508B2 (en) * | 2000-12-18 | 2003-05-06 | Savage Enterprises, Inc. | Robust torch jet spark plug electrode |
| DE102009047055A1 (en) * | 2009-11-24 | 2011-05-26 | Robert Bosch Gmbh | Spark plug for an internal combustion engine |
| US9751797B2 (en) | 2014-08-10 | 2017-09-05 | Federal-Mogul Ignition Company | Corona ignition device with improved seal |
| BR112017002596A2 (en) | 2014-08-10 | 2018-01-30 | Federal-Mogul Ignition Company | improved sealing spark plug |
| US10418789B2 (en) * | 2016-07-27 | 2019-09-17 | Federal-Mogul Ignition Llc | Spark plug with a suppressor that is formed at low temperature |
| DE102018221690A1 (en) * | 2018-12-13 | 2020-06-18 | Robert Bosch Gmbh | Spark plug resistance element and spark plug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2864884A (en) * | 1954-01-25 | 1958-12-16 | Gen Motors Corp | Resistor and spark plug embodying same |
-
1973
- 1973-09-28 JP JP10835773A patent/JPS5520355B2/ja not_active Expired
-
1974
- 1974-09-25 US US509217A patent/US3903453A/en not_active Expired - Lifetime
- 1974-09-25 ZA ZA00746080A patent/ZA746080B/en unknown
- 1974-09-27 FR FR7432775A patent/FR2246997B1/fr not_active Expired
- 1974-09-27 DE DE19742446365 patent/DE2446365A1/en active Pending
- 1974-09-30 GB GB42292/74A patent/GB1488677A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2446365A1 (en) | 1975-04-17 |
| US3903453A (en) | 1975-09-02 |
| FR2246997A1 (en) | 1975-05-02 |
| FR2246997B1 (en) | 1977-11-10 |
| ZA746080B (en) | 1975-10-29 |
| JPS5059635A (en) | 1975-05-23 |
| JPS5520355B2 (en) | 1980-06-02 |
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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 |