CN102185256A - Ceramic insulator especially based on aluminum oxide and manufacture method thereof - Google Patents
Ceramic insulator especially based on aluminum oxide and manufacture method thereof Download PDFInfo
- Publication number
- CN102185256A CN102185256A CN2010106219828A CN201010621982A CN102185256A CN 102185256 A CN102185256 A CN 102185256A CN 2010106219828 A CN2010106219828 A CN 2010106219828A CN 201010621982 A CN201010621982 A CN 201010621982A CN 102185256 A CN102185256 A CN 102185256A
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- insulator
- overcoat
- aluminum oxide
- ceramics
- oxide
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- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5049—Zinc or bismuth oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
-
- 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
- H01T13/38—Selection of materials for insulation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Spark Plugs (AREA)
Abstract
The invention relates to a ceramic insulator especially based on aluminum oxide and a manufacture method thereof. The ceramic insulator (2) has a ceramic additive or UV-protection layer absorbing UV-radiation, where the insulator is designed based on aluminum oxide (Al2O3).
Description
Technical field
The present invention relates to ceramics insulator,, the invention still further relates to the manufacture method of described insulator especially based on the ceramics insulator of aluminum oxide and the explosive motor spark plug that comprises this kind insulator.
Background technology
In the prior art, the pottery based on aluminum oxide is considered to have splendid insulation property and very high compressive resistance.For the application of this insulator in spark plug for example, aluminum oxide is equipped with the sintering assist medium.Described sintering assist medium is for example by magnesium oxide (MgO), calcium oxide (CaO) and Si oxide (SiO
2) these three kinds of one-tenth are grouped into.The liquation form appears in this sintering assist medium when temperature is quite low, therefore improved the sintering characteristic of material.
Summary of the invention
According to of the present invention have the ceramics insulator of feature according to claim 1 have be improved significantly electric breakdown strength.Especially when will insulator according to the present invention being applied on the spark plug, spark plug can be configured to littler, and ignition voltage can remain unchanged or improve.This minor structure spark plug that improves ignition voltage especially is applied in the modern ic engine, and this is that for example in the direct injection ic engine, spark plug must be positioned in from the very near place of nozzle because at the modern ic engine.In framework of the present invention, determine: in stratified dielectric; that is to say a kind of (just as in spark plug, exist) in when, electrical breakdown taking place in " electrode/air/pottery/electrode " or " electrode/air/pottery/air/electrode " such structure; usually can produce partial discharge, but also may produce " sliding dodge (Gleitfunke) ".The described sliding ray that can radiate again in the ultraviolet ray range that dodges.Aluminum oxide can be penetrated by the UV ray.This means that ray can incide in the insulator, and in the micropore that exists with gas ionization.Be accelerated in the electric field of charged particle between two electrodes, it may be damaged the crystal structure in the pottery and therefore cause electrical breakdown when striking micro-pore wall.Therefore generally believe that the dielectric strength in the stratified dielectric is significantly less than the dielectric dielectric strength of direct contact type.Therefore according to the present invention, ceramics insulator need prevent to be subjected to the irradiation of the UV ray of ionization.The potentiality of dielectric strength can access better utilization thus, and under best situation, can bring up to the level of direct contact type insulator.All these advantages are by ceramics insulator, particularly based on aluminum oxide (Al
2O
3) ceramics insulator realize that described ceramics insulator comprises the medium that is configured to absorb the UV ray, wherein, this kind medium is a ceramic material.Compare with for example metal bed of material, described ceramic material has conclusive advantage, and promptly ceramic material is more stable.When insulator was applied on the spark plug that is in the extreme environment of combustion chamber, this point was especially favourable.
Each dependent claims shows other favourable improvement project of the present invention.
Advantageously, the medium that is used to absorb the UV ray is ceramic additive and/or the ceramic UV overcoat that is configured to absorb the UV ray.The ceramic in other words UV overcoat of ceramic additive in the material of insulator basis absorbs especially by the sliding UV ray that produces that dodges.
Further advantageously, the conductive protection layer is set on described insulator.Can disperse the partial discharge that before electrical breakdown, produces thus.
Preferred be provided with like this, that is, additive is concentrated at least a portion on surface of insulator and therefore forms the UV overcoat.This UV overcoat will sponge it before the UV ray can invade insulator inside.Ionisation of gas and the acceleration of charged particle in electric field in the insulator micropore have just been prevented thus.
Be such design in another preferred design, that is, additive is concentrated at least a portion on surface of insulator, and/or described additive is distributed in the described insulator, so that reduce the UV transmission of described insulator.When making this insulator, can for example before the sintering circuit basic material aluminum oxide be arrived with the additives mixed that with the powder is form.Like this, after sintering circuit, described additive just is distributed in described insulator almost evenly and has been suffered.As replenishing or optional design of above-mentioned design, described additive is concentrated at least a portion on surface of insulator and therefore forms surperficial UV overcoat.
Further advantageously, the medium that is used to absorb the UV ray also comprises metal oxide.In such cases, advantageous applications titanium oxide (TiO
2) and/or zinc oxide (ZnO).These two kinds of absorbed UV rays are very effective, and just can have conductivity by suitable doping.In addition, two kinds of oxides are very stable for chamber conditions.Therefore, each in the above-mentioned possibility scheme all can utilize titanium oxide or zinc oxide to improve the electric breakdown strength of described insulator.The first, described oxide can be distributed in the aluminum oxide before sintering process.The second, described oxide can be concentrated at least a portion on surface of insulator and therefore form the UV overcoat.Therefore the 3rd, described oxide can mix, and can be forms the conductive protection layer at least a portion on the surface of insulator.
Advantageously, conductive protection layer and/or UV overcoat have 1 μ m to 100 μ m, and particularly 20 μ m are to 80 μ m, and especially 40 μ m are to the layer thickness of 60 μ m.
Be used to absorb the UV ray ceramic dielectric absorption coefficient preferably at least with the factor 1000 especially with the factor 10
6Greater than aluminum oxide (Al
2O
3) absorption coefficient.Therefore, the absorption coefficient of described additive preferably at least with the factor 1000 especially with the factor 10
6Greater than aluminum oxide (Al
2O
3) absorption coefficient.In addition, the absorption coefficient of the material of described UV overcoat preferably with the factor 1000 especially with the factor 10
6Greater than aluminum oxide (Al
2O
3) absorption coefficient.Advantageously the UV overcoat is configured to absorb at least 90%, especially at least 99% UV ray.
The present invention also comprises the spark plug that is used for explosive motor in addition, and described spark plug comprises above-described insulator.For spark plug of the present invention, in the zone of the dielectric layer of " electrode/air/insulator/electrode " or " electrode/air/insulator/air/electrode ", described ceramic UV overcoat preferable configuration is on air/insulator-transition region.Therefore can make up littler spark plug, wherein, described ignition voltage can remain unchanged, even can improve.So just make that the modern ic engine can miniaturization, particularly make spark plug for example can be installed on the very near position of nozzle.
In the preferable configuration of spark plug such design, that is, and the overcoat that structure conducts electricity in the slit of opening wide towards the combustion chamber between the housing of described insulator and spark plug, and the UV overcoat is configured on the insulator.Here advantageously, compare with described conductive layer, described UV overcoat be fabricated more close combustion chamber.These two overcoats preferably are configured on the whole neighboring of insulator ringwise.
In addition, the present invention includes and be used for making based on aluminum oxide (Al
2O
3) the method for ceramics insulator, wherein, by pottery especially by titanium oxide (TiO
2) the UV overcoat that forms with by aluminum oxide (Al
2O
3) substrate that forms by sintering together at least a portion on the surface of insulator.Because the advantageous feature of titanium oxide is planted the overcoat of oxide formation thus and can directly be fired along with the sintering circuit of aluminum oxide.At this moment, on the interface between overcoat that forms by titanium oxide and the aluminum oxide, constitute reaction zone.Advantageously, described design obviously also can be applied in manufacturing according to the present invention has the method category of insulator of titanium oxide in the category according to ceramics insulator of the present invention.Sintering preferably between 1480 ℃ and 1680 ℃, carries out between 1560 ℃ and 1600 ℃ especially.
In addition, the present invention also comprises and is used for making based on aluminum oxide (Al
2O
3) the method for ceramics insulator, wherein at first sintering by aluminum oxide (Al
2O
3) substrate that forms and next will firing at least a portion on the surface of insulator by the UV overcoat that zinc oxide (ZnO) forms.Described zinc oxide is preferably fired in＜1300 ℃ additional combustion process because vapourizing temperature is low.Correspondingly also can advantageously be applied to make in the method for ceramics insulator in conjunction with the described favourable design of ceramics insulator according to the present invention with zinc oxide.By aluminum oxide (Al
2O
3) substrate that forms is preferably between 1530 ℃ and 1730 ℃, sintering between 1610 ℃ and 1650 ℃ particularly, zinc oxide (ZnO) are then fired being lower than under 1300 ℃ the temperature.
In preferred embodiment, titanium oxide shared share on aluminum oxide is 0.01 to 2wt-%, and especially 0.01 to 1wt-%, and particularly 0.4 to 0.8wt-%.Advantageously, zinc oxide shared share on aluminum oxide is 0.01 to 2wt-%, and especially 0.01 to 1wt-%, and particularly 0.01 to 0.5wt-%.
According to the optional manufacture method of another kind, sneaked into the ceramic additive that is used to absorb the UV ray in the aluminum oxide, and then made ceramics insulator.This mixture of being made up of aluminum oxide and ceramic additive also can be used as basic material and is applied in above-described two kinds of methods.
Description of drawings
Below with reference to accompanying drawings, embodiments of the invention are specified.In the accompanying drawings:
Fig. 1 show according to an embodiment have according to insulator of the present invention according to spark plug of the present invention, and
Fig. 2 shows the details of the spark plug of this embodiment.
Embodiment
Fig. 1 shows the spark plug 1 according to embodiment.Spark plug 1 comprises insulator 2, is mounted with housing 10 on this insulator.In insulator 2, be provided with the cavity 3 of perforation.In cavity 3, order is equipped with connecting bolt 4, first contact member (Kontaktpanat) 5, resistive elements (Widerstandspanat) 6, second contact member 7 and main electrode 8.Grounding electrode (Massenelektrode) 9 is installed on housing 10.
That side in the close combustion chamber of spark plug 1 has a slit 13 to open wide towards the direction of described combustion chamber between housing 10 and insulator 2.
Fig. 2 shows the intercepting part of that side of the close combustion chamber of spark plug shown in Figure 11.Wherein especially can see the slit 13 between housing 10 and the insulator 2.In this slit, on the lateral surface of insulator 2, have ceramic UV overcoat 11 and conductive protection layer 12.UV overcoat 11 and conductive protection layer 12 center on the whole peripheral disposition of insulator 2 ringwise.UV overcoat 11 is nearer from the combustion chamber than conductive protection layer 12.No matter UV overcoat 11 still is a conductive protection layer 12, and preferred layer thickness is all between 1 μ m and 100 μ m.
Show described ceramic UV overcoat 11 and conductive protection layer 12 preferred layout part on insulator 2 by means of this embodiment, so that realize favourable dielectric strength characteristic.Certainly, advantageously, also can only adopt ceramic UV overcoat 11, and not adopt conductive protection layer 12.Particularly for those stratification dielectrics that exist in the picture slit 13 of spark plug 1, overcoat 11 and 12 property can obtain performance.Can suitably disperse Partial charge by conductive protection layer 12.Can absorb the UV ray by UV overcoat 11.Should be noted in the discussion above that in addition as optional or additional project, can be in the material of insulator basis blending pottery additive.
Claims (11)
1. ceramics insulator (2) is especially based on aluminum oxide (Al
2O
3), described ceramics insulator comprises the medium that is configured to absorb the UV ray, wherein, described medium is a ceramic material.
2. ceramics insulator according to claim 1 is characterized in that, the described medium that is used to absorb the UV ray is ceramic additive and/or the ceramic UV overcoat that is configured to absorb the UV ray.
3. ceramics insulator according to claim 2 is characterized in that, described additive is concentrated at least a portion on surface of described insulator (2) and therefore forms UV overcoat (11).
4. according to the described ceramics insulator in one of claim 2 or 3, it is characterized in that, described additive is concentrated at least a portion on surface of described insulator (2), and/or described additive distributes and especially is evenly distributed in the described insulator so that reduce the UV transmission of described insulator (2).
5. according to the described ceramics insulator of one of aforementioned claim, it is characterized in that described medium comprises especially titanium oxide (TiO of metal oxide
2) and/or zinc oxide (ZnO).
6. according to the described ceramics insulator in one of claim 2 or 5, it is characterized in that, described UV overcoat have 1 μ m to 100 μ m especially 20 μ m to 80 μ m especially 40 μ m to the layer thickness of 60 μ m.
7. according to the described ceramics insulator of one of aforementioned claim, it is characterized in that, be configured to absorb the UV ray medium absorption coefficient at least with the factor 1000 especially with the factor 10
6Greater than aluminum oxide (Al
2O
3) absorption coefficient.
8. the spark plug (1) that is used for explosive motor, comprise according to the described insulator of one of aforementioned claim (2), wherein, especially in the zone of the dielectric layer of " electrode/air/insulator/electrode " or " electrode/air/insulator/air/electrode ", UV overcoat (11) is built on air/insulator-transition region.
9. spark plug according to claim 8 is characterized in that, the UV overcoat (11) on the described insulator (2) is built in the slit of opening wide towards the combustion chamber (13) between the housing (10) of described insulator (2) and described spark plug (1).
10. be used for making based on aluminum oxide (Al
2O
3) the method for ceramics insulator (2), wherein by ceramic material especially by titanium oxide (TiO
2) the UV overcoat (11) that forms with by aluminum oxide (Al
2O
3) substrate that forms together sintering at least a portion on the surface of described insulator (2).
11. be used for making based on aluminum oxide (Al
2O
3) the method for ceramics insulator (2), wherein, at first sintering is by aluminum oxide (Al
2O
3) substrate that forms and next will firing at least a portion on the surface of described insulator (2) by the UV overcoat (11) that ceramic material is especially formed by zinc oxide (ZnO).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009055397.5 | 2009-12-30 | ||
| DE200910055397 DE102009055397A1 (en) | 2009-12-30 | 2009-12-30 | Ceramic insulator for use in spark plug in direct injection engine, has UV-protection layer absorbing UV-radiation and comprising thickness that ranges from forty to sixty micrometers, where insulator is designed based on aluminum oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102185256A true CN102185256A (en) | 2011-09-14 |
| CN102185256B CN102185256B (en) | 2015-11-25 |
Family
ID=44312465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010621982.8A Expired - Fee Related CN102185256B (en) | 2009-12-30 | 2010-12-29 | Especially based on ceramics insulator and the manufacture method thereof of aluminum oxide |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2011138771A (en) |
| CN (1) | CN102185256B (en) |
| DE (1) | DE102009055397A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009389A (en) * | 2013-03-01 | 2015-10-28 | 罗伯特·博世有限公司 | Spark plug |
| CN107248698A (en) * | 2017-06-29 | 2017-10-13 | 宋天顺 | A kind of resistor type spark plug |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6631201B2 (en) | 2014-12-08 | 2020-01-15 | 株式会社デンソー | Ignition device and method for producing superhydrophilic film used therein |
| MX2017009710A (en) | 2015-01-29 | 2018-04-30 | Fram Group Ip Llc | Spark plug insulator having an anti-fouling coating and methods for minimizing fouling. |
| DE102019126831A1 (en) | 2018-10-11 | 2020-04-16 | Federal-Mogul Ignition Llc | SPARK PLUG |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01212272A (en) * | 1988-02-19 | 1989-08-25 | Ngk Spark Plug Co Ltd | High-alumina insulator for ignition plug |
| JPH07252453A (en) * | 1994-03-17 | 1995-10-03 | Tonen Corp | Coating composition |
| CN1256806A (en) * | 1998-02-27 | 2000-06-14 | 日本特殊陶业株式会社 | Spark plug, alumina insulator for spark plug, and method of manufacturing the same |
| US6492289B1 (en) * | 1999-05-24 | 2002-12-10 | Denso Corporation | Lead-free glaze and spark plug |
| CN1913264A (en) * | 1998-05-22 | 2007-02-14 | 日本特殊陶业株式会社 | Spark plug |
| US20090302021A1 (en) * | 2005-12-23 | 2009-12-10 | Martin Koehne | Method for Making A Glow Element, A Spark Element, or A Heating Element for A Combustion Device and/or A Heating Device, and Device Thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007042656A (en) * | 1998-05-22 | 2007-02-15 | Ngk Spark Plug Co Ltd | Spark plug and its manufacturing method |
-
2009
- 2009-12-30 DE DE200910055397 patent/DE102009055397A1/en not_active Withdrawn
-
2010
- 2010-12-27 JP JP2010290336A patent/JP2011138771A/en active Pending
- 2010-12-29 CN CN201010621982.8A patent/CN102185256B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01212272A (en) * | 1988-02-19 | 1989-08-25 | Ngk Spark Plug Co Ltd | High-alumina insulator for ignition plug |
| JPH07252453A (en) * | 1994-03-17 | 1995-10-03 | Tonen Corp | Coating composition |
| CN1256806A (en) * | 1998-02-27 | 2000-06-14 | 日本特殊陶业株式会社 | Spark plug, alumina insulator for spark plug, and method of manufacturing the same |
| CN1913264A (en) * | 1998-05-22 | 2007-02-14 | 日本特殊陶业株式会社 | Spark plug |
| US6492289B1 (en) * | 1999-05-24 | 2002-12-10 | Denso Corporation | Lead-free glaze and spark plug |
| US20090302021A1 (en) * | 2005-12-23 | 2009-12-10 | Martin Koehne | Method for Making A Glow Element, A Spark Element, or A Heating Element for A Combustion Device and/or A Heating Device, and Device Thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009389A (en) * | 2013-03-01 | 2015-10-28 | 罗伯特·博世有限公司 | Spark plug |
| CN105009389B (en) * | 2013-03-01 | 2018-04-24 | 罗伯特·博世有限公司 | Spark plug |
| CN107248698A (en) * | 2017-06-29 | 2017-10-13 | 宋天顺 | A kind of resistor type spark plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011138771A (en) | 2011-07-14 |
| DE102009055397A1 (en) | 2011-07-07 |
| CN102185256B (en) | 2015-11-25 |
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