JP4756087B2 - スパークプラグ及びスパークプラグの製造方法 - Google Patents
スパークプラグ及びスパークプラグの製造方法 Download PDFInfo
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- JP4756087B2 JP4756087B2 JP2009221066A JP2009221066A JP4756087B2 JP 4756087 B2 JP4756087 B2 JP 4756087B2 JP 2009221066 A JP2009221066 A JP 2009221066A JP 2009221066 A JP2009221066 A JP 2009221066A JP 4756087 B2 JP4756087 B2 JP 4756087B2
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- insulator
- spark plug
- component
- compound powder
- metal shell
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Images
Classifications
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- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
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- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/34—Sparking plugs characterised by features of the electrodes or insulation characterised by the mounting of electrodes in insulation, e.g. by embedding
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- 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
- H01T13/36—Sparking plugs characterised by features of the electrodes or insulation characterised by the joint between insulation and body, e.g. using cement
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- C04B2235/77—Density
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- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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Description
条件(1):(DIN−dOUT)/2≦0.40(mm)
条件(2):(dOUT−dIN)/2≦1.65(mm)
条件(3):ε≧9.4(F/m)
条件(1):(DIN−dOUT)/2≦0.40(mm)
条件(2):(dOUT−dIN)/2≦1.65(mm)
条件(3):ε≧9.4(F/m)
アルミナ粉末とSi化合物粉末と第2族元素化合物粉末としてMg化合物粉末、Ba化合物粉末、Ca化合物粉末及び/又はSr化合物粉末と希土類化合物粉末との原料粉末(混合した各粉末の種類を第1表に示す。)に親水性結合剤を添加してスラリーを調製した。なお、前記Si化合物粉末及び前記第2族元素化合物粉末の平均粒径D50を「焼結助剤の平均粒径D(μm)」50として第1表に示す。
各アルミナ基焼結体を用いて、図1〜図3に示されるスパークプラグ100を製造した。実施例1〜15及び比較例1〜5のスパークプラグにおいて、取付ネジ部7の呼び径を第1表に示される「プラグタイプ」に適合する値に、火花放電間隙gを1.1mmに、また、前記係合凸部56の内径DIN(mm)、前記脚長基部の最大外径dOUT(mm)及びその内径dIN(mm)を第1表に示す値にそれぞれ調整した。このようにして準備した各スパークプラグを用いてプレデリバリ耐久試験を行った。すなわち、各スパークプラグを、接地電極4側を正、中心電極2側を負とする電圧印加極性で試験用自動車(排気量:1500cc、直列4気筒)に取り付け、JIS:D1606に例示されている走行パターン(テスト室温:−10℃)を1サイクルとして、スパークプラグの絶縁抵抗が10MΩ以下に低下するまでこれを繰り返した。スパークプラグの耐汚損性は、前記サイクル数により評価し、そのサイクル数が10サイクル以上であった場合を「○」、6サイクル以下であった場合を「×」とした。その結果を第2表に示す。
耐汚損性と同様にして実施例1〜15及び比較例1〜5の各スパークプラグをそれぞれ複数本準備した。周辺圧力が10MPaの環境下で準備したスパークプラグの主体金具1と中心電極3との間に33kVの電圧を200時間にわたって連続して印加した。この試験を各スパークプラグそれぞれについて行い、各スパークプラグの試験総数に対する絶縁破壊が発生したスパークプラグ数の破壊割合(%)を算出して、スパークプラグの耐電圧特性を評価した。耐電圧特性は、前記破壊割合(%)が0%であった場合を「◎」、前記破壊割合(%)が0%を超え20%未満であった場合を「○」、前記破壊割合(%)が20%以上であった場合を「×」とした。その結果を「耐電圧特性 印加電圧33kV」として第2表に示す。なお、主体金具1と中心電極3とに33kVの電圧を印加した耐電圧特性において、前記破壊割合(%)が20%未満であれば実用上許容でき、前記破壊割合(%)が0%であれば実用上十分な耐電圧特性を長期にわたって発揮する。
主体金具1と中心電極3との間に連続して印加する電圧を38kVに設定したこと以外は、前記耐電圧特性1と基本的に同様にして、各スパークプラグにおける高電圧が印加されたときの耐電圧特性を評価した。その結果を「耐電圧特性 印加電圧38kV」として第2表に示す。なお、主体金具1と中心電極3とに38kVの高電圧を印加した耐電圧特性において、前記破壊割合(%)が20%未満であれば実用上許容でき、前記破壊割合(%)が0%であれば実用上十分な耐電圧特性を長期にわたって発揮する。
1 主体金具
2 絶縁体
3 中心電極
4 接地電極
6 貫通孔
7 取付ネジ部
29 脚長基部
30 脚長部(絶縁体縮径部)
56 係合凸部(主体金具基部)
g 火花放電間隙
S 基部間隙
Claims (5)
- 先端側に小径の脚長部を有する略筒状に形成され、軸線方向に貫通する貫通孔を有する絶縁体と、前記貫通孔の前記先端側に挿設された中心電極と、径方向内側に突出する係合凸部を有する略筒状に形成され、内挿された前記絶縁体を前記係合凸部で保持する主体金具とを備えて成るスパークプラグであって、
前記係合凸部の内径をDIN(mm)、前記脚長部のうち前記係合凸部の内周面に対面している部分の最大外径をdOUT(mm)及びその内径をdIN(mm)、並びに、前記絶縁体の誘電率をε(F/m)としたときに、下記条件(1)〜(3)を満足することを特徴とするスパークプラグ。
条件(1):(DIN−dOUT)/2≦0.40(mm)
条件(2):(dOUT−dIN)/2≦1.65(mm)
条件(3):ε≧9.4(F/m) - 前記誘電率εは10.5(F/m)以下であり、かつ、
前記絶縁体は、その鏡面研磨面における250μm×190μmの領域を倍率500倍で観察したときに、観察領域の面積Sに対する、前記観察領域内に存在する気孔の合計面積SAの面積割合(SA/S)が2.0〜4.0%であり、前記観察領域内に存在する円相当直径が20μm以上の気孔の合計面積S20の面積割合(S20/S)が0.3%以下であることを特徴とする請求項1に記載のスパークプラグ。 - 前記絶縁体は、主成分としてのAl2O3と、SiO2と、MgO及びBaOを含む2種類以上の、IUPAC1990年勧告に基づく周期表の第2族元素の酸化物と、0.5〜4.0質量%の希土類元素の酸化物とを、これらの含有率の合計が100質量%となるように、含有するアルミナ基焼結体で形成されてなることを特徴とする請求項1又は2に記載のスパークプラグ。
- 請求項1〜3のいずれか1項に記載のスパークプラグの製造方法であって、
主成分としてのAl化合物粉末と、Si化合物粉末と、Mg化合物粉末及びBa化合物粉末を含む2種類以上の、IUPAC1990年勧告に基づく周期表の第2族元素化合物粉末と、0.5〜4.0質量%の希土類化合物粉末とをこれらの酸化物換算含有率の合計が100質量%となるように含有する原料粉末を、加圧成形後に焼結して、前記絶縁体を製造する工程を含むことを特徴とするスパークプラグの製造方法。 - 前記Si化合物粉末及び前記第2族元素化合物粉末はそれらの平均粒径D50が0.5〜3.0μmであり、前記加圧成形は50〜70MPaの加圧下で行われることを特徴とする請求項4に記載のスパークプラグの製造方法。
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CN201080042325.6A CN102549861B (zh) | 2009-09-25 | 2010-06-23 | 火花塞及火花塞的制造方法 |
US13/497,904 US8564184B2 (en) | 2009-09-25 | 2010-06-23 | Spark plug and process for producing spark plug |
EP10818513.3A EP2482396B1 (en) | 2009-09-25 | 2010-06-23 | Spark plug and process for producing spark plug |
PCT/JP2010/004161 WO2011036832A1 (ja) | 2009-09-25 | 2010-06-23 | スパークプラグ及びスパークプラグの製造方法 |
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---|---|---|---|---|
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Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3432102B2 (ja) * | 1996-02-15 | 2003-08-04 | 日本特殊陶業株式会社 | スパークプラグ |
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JP2006196474A (ja) * | 2000-06-30 | 2006-07-27 | Ngk Spark Plug Co Ltd | スパークプラグ |
BR0103399A (pt) | 2000-06-30 | 2002-02-13 | Ngk Spark Plug Co | Vela de ignição |
US6653768B2 (en) * | 2000-12-27 | 2003-11-25 | Ngk Spark Plug Co., Ltd. | Spark plug |
JP4270784B2 (ja) * | 2000-12-27 | 2009-06-03 | 日本特殊陶業株式会社 | スパークプラグ |
JP3795374B2 (ja) | 2001-10-31 | 2006-07-12 | 日本特殊陶業株式会社 | スパークプラグ |
JP2005183177A (ja) * | 2003-12-19 | 2005-07-07 | Ngk Spark Plug Co Ltd | スパークプラグ |
JP4690230B2 (ja) * | 2006-03-16 | 2011-06-01 | 日本特殊陶業株式会社 | 内燃機関用スパークプラグ及びその製造方法 |
CN101479900A (zh) * | 2006-05-12 | 2009-07-08 | 能量脉冲科技有限公司 | 复合火花塞 |
JP2009146636A (ja) * | 2007-12-12 | 2009-07-02 | Denso Corp | 点火装置 |
EP3739701B1 (en) * | 2009-05-07 | 2024-04-03 | Niterra Co., Ltd. | Spark plug |
WO2011125306A1 (ja) * | 2010-04-02 | 2011-10-13 | 日本特殊陶業株式会社 | スパークプラグ |
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US9362722B2 (en) | 2012-02-27 | 2016-06-07 | Ngk Spark Plug Co., Ltd. | Spark plug with improved withstand voltage characteristics and high mechanical strength at high temperatures |
US9160145B2 (en) | 2013-05-09 | 2015-10-13 | Ngk Spark Plug Co., Ltd. | Insulator for spark plug and spark plug |
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JP2011070928A (ja) | 2011-04-07 |
US8564184B2 (en) | 2013-10-22 |
KR101307649B1 (ko) | 2013-09-12 |
CN102549861B (zh) | 2014-01-01 |
KR20120065421A (ko) | 2012-06-20 |
EP2482396A1 (en) | 2012-08-01 |
WO2011036832A1 (ja) | 2011-03-31 |
EP2482396B1 (en) | 2020-01-01 |
US20120262049A1 (en) | 2012-10-18 |
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