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1. 发明授权

EP3273553B1 SPARK PLUG 有权
公开(公告)号：EP3273553B1
公开(公告)日：2020-08-05
申请号：EP17178901.9
申请日：2017-06-30
申请人： NGK Spark Plug Co., Ltd.
发明人： Mukoyama, Naoyuki , Kameda, Hiroyuki
IPC分类号： H01T13/16 , H01T13/20 , H01T13/34 , H01T13/36 , H01T13/41

2. 发明授权

EP2239458B1 Plasma-jet spark plug 有权
标题翻译：等离子喷射火花塞
公开(公告)号：EP2239458B1
公开(公告)日：2018-01-17
申请号：EP10158481.1
申请日：2010-03-30
申请人： NGK SPARK PLUG CO., LTD.
发明人： Nakano, Daisuke , Sato, Yoshikuni , Kasahara, Daisuke , Yamamura, Naohumi , Kameda, Hiroyuki
IPC分类号： F02P9/00 , H01T13/50
CPC分类号： F02P9/007 , H01T13/50
摘要： [Objective] To restrain the radiation of noise while allowing application of sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition by a plasma jet ignition plug. [Means for Solution] A wire-wound resistor 21 having an inductance of 1 µH to 100 µH inclusive and a resistance of 1 © or less is provided on at least one of a center electrode 20 and a ground electrode 30. The wire-wound resistor 21 restrains current which is generated by the influence of stray capacitance present in a plasma jet ignition plug, thereby reducing noise.

3. 发明授权

EP2439823B1 Plasma jet ignition plug and manufacturing method thereof 有权
标题翻译：等离子流火花塞及其制造方法
公开(公告)号：EP2439823B1
公开(公告)日：2017-10-25
申请号：EP11183513.8
申请日：2011-09-30
申请人： NGK SPARK PLUG CO., LTD.
发明人： Yamamura, Naofumi , Kameda, Hiroyuki , Nakano, Daisuke , Kasahara, Daisuke
IPC分类号： H01T13/52 , H01T13/32 , H01T21/02 , H01T13/16
CPC分类号： H01T13/52 , H01T13/16 , H01T13/32 , H01T21/02

4. 发明授权

EP2073328B1 Spark plug 有权
公开(公告)号：EP2073328B1
公开(公告)日：2015-05-20
申请号：EP08022176.5
申请日：2008-12-19
申请人： NGK SPARK PLUG CO., LTD.
发明人： Kameda, Hiroyuki , Nakayama, Katsutoshi , Nagasawa, Satoshi , Yoshida, Kazumasa
IPC分类号： H01T13/39 , H01T13/16 , H01T13/32
CPC分类号： H01T13/39 , H01T13/16 , H01T13/32

5. 发明授权

EP2063508B1 Spark plug for internal combustion engine and method for producing the spark plug 有权
标题翻译：火花塞用于内燃机，使火花塞的方法
公开(公告)号：EP2063508B1
公开(公告)日：2014-04-23
申请号：EP08020257.5
申请日：2008-11-20
申请人： NGK Spark Plug Co., Ltd.
发明人： Kameda, Hiroyuki , Nakayama, Katsutoshi , Nagasawa, Satoshi
IPC分类号： H01T21/02 , H01T13/32
CPC分类号： H01T21/02 , H01T13/32

6. 发明公开

EP2493037A2 Plasma jet ignition plug 审中-公开
公开(公告)号：EP2493037A2
公开(公告)日：2012-08-29
申请号：EP12156523.8
申请日：2012-02-22
申请人： NGK Spark Plug Co., Ltd.
发明人： Kameda, Hiroyuki
IPC分类号： H01T13/52
CPC分类号： H01T13/52 , H01T13/54
摘要： [Objective] To dramatically improve ignitability by suppressing an expansion of plasma generated in an aerial discharge path, or the like.
[Means for Solution] A plasma jet ignition plug 1 includes an insulating body 2 having an axial hole 4, and a center electrode 5, and includes a cavity portion 28 formed by being surrounded by the insulating body 2 and center electrode 5 with the leading end of the axial hole 4 as an opening end. A decreasing diameter portion 4N decreasing in diameter toward a leading end side is formed on the axial hole 4, the leading end of the decreasing diameter portion 4N is positioned closer to the leading end side than the leading end face of the center electrode 5, and the inside diameter of the leading end of the decreasing diameter portion 4N is made smaller than the outside diameter of the leading end face of the center electrode 5. When a shortest distance between the leading end face of the center electrode 5 and a region on the decreasing diameter portion 4N opposed to the leading end face of the center electrode 5 in a direction of an axis CL1 is taken to be A (mm), and a shortest distance, in a direction perpendicular to the axis CL1, between the outer circumference of the leading end face of the center electrode 5 and the inner peripheral surface of the axial hole 4 is taken to be B (mm), A≤B is satisfied.

7. 发明公开

EP2239458A1 Plasma-jet spark plug 有权
标题翻译： Plasmastrahlzündkerze
公开(公告)号：EP2239458A1
公开(公告)日：2010-10-13
申请号：EP10158481.1
申请日：2010-03-30
申请人： NGK Spark Plug Co., Ltd.
发明人： Nakano, Daisuke , Sato, Yoshikuni , Kasahara, Daisuke , Yamamura, Naohumi , Kameda, Hiroyuki
IPC分类号： F02P9/00 , H01T13/41 , H01T13/20
CPC分类号： F02P9/007 , H01T13/50
摘要： [Objective] To restrain the radiation of noise while allowing application of sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition by a plasma jet ignition plug.
[Means for Solution] A wire-wound resistor 21 having an inductance of 1 µH to 100 µH inclusive and a resistance of 1 Ω or less is provided on at least one of a center electrode 20 and a ground electrode 30. The wire-wound resistor 21 restrains current which is generated by the influence of stray capacitance present in a plasma jet ignition plug, thereby reducing noise.
摘要翻译： [目的]为了抑制噪声辐射，同时允许在通过等离子体喷射火花塞点火时施加足够大的电流以产生等离子体到火花放电间隙。 [解决方案]在中心电极20和接地电极30中的至少一个上提供具有1μH至100μH的电感和1Ω或更小的电感的绕线电阻器21。电阻器21抑制由等离子喷射火花塞中存在的杂散电容的影响而产生的电流，从而降低噪声。

8. 发明公开

EP2063508A2 Spark plug for internal combustion engine and method for producing the spark plug 有权
标题翻译： ZündkerzefürVerbrennungsmotoren und Verfahren zur Herstellung derZündkerze
公开(公告)号：EP2063508A2
公开(公告)日：2009-05-27
申请号：EP08020257.5
申请日：2008-11-20
申请人： NGK Spark Plug Co., Ltd.
发明人： Kameda, Hiroyuki , Nakayama, Katsutoshi , Nagasawa, Satoshi
IPC分类号： H01T13/39 , H01T21/02
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a center electrode; a substantially cylindrical insulator; a cylindrical metal shell; a ground electrode having a base end joined to a leading end portion of the metal shell and a distal end bent toward the axis line. The ground electrode includes: a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion. A noble metal tip is joined to and partially embedded in the inner peripheral surface of the thin portion and disposed to form a gap between the noble metal tip and the leading end portion of the center electrode.
摘要翻译：一种火花塞，包括：中心电极; 基本上圆柱形的绝缘体; 圆柱形金属外壳; 接地电极，其具有接合到所述金属壳的前端部的基端和朝向所述轴线弯曲的远端。接地电极包括：设置在基端侧的厚壁部，设置在前端侧的薄壁部和设置在厚壁部与薄壁部之间的内周面的台阶部。贵金属端头接合并部分地嵌入在薄壁的内周面中，并且设置成在贵金属端头和中心电极的前端部之间形成间隙。

9. 发明公开

EP1102373A2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：EP1102373A2
公开(公告)日：2001-05-23
申请号：EP00310115.1
申请日：2000-11-14
申请人： NGK SPARK PLUG CO., LTD
发明人： Kameda, Hiroyuki , Matsubara, Yoshihiro
IPC分类号： H01T13/46 , H01T13/20
CPC分类号： H01T13/20 , H01T13/467
摘要： A spark plug includes a metallic shell (5) having a stepped portion (5c); an insulator (3) disposed inside the metallic shell (5), while being engaged with the stepped portion (5c) of the metallic shell (5), and having an axially extending through-hole (3d); a center electrode (2) fixed within the through-hole (3d) of the insulator (3); and a ground electrode (4) having a tip end portion (4a) bent toward the center electrode (2) to thereby form a spark discharge gap (g). The insulator (3) is formed such that the outer diameter of the insulator (3) decreases toward the tip end side from an engagement position at which the insulator (3) engages the stepped portion (5c) and such that the diameter decreases stepwise at an axial position between the engagement position and the tip end of the insulator (3). The diameter reduction ratio Y1 = D1/d1 is 0.6 or less in a region of at least 2 mm extending from the tip end surface (3b) of the insulator (3) toward the base end side, wherein D1 represents the outer diameter of the insulator (3) measured at an arbitrarily determined axial position, and d1 represents the inner diameter of the tip end portion (5a) of the metallic shell (5). Further, a clearance ratio Y2 = (d1-D1)/d1 is 0.4 or greater in a region of at least 1 mm extending from the tip end surface (5b) of the metallic shell (5) toward the base end side.
摘要翻译：火花塞包括具有台阶部分（5c）的金属壳（5）; （5）内的绝缘体（3），与主体配件（5）的台阶部（5c）卡合并具有沿轴向贯通的贯通孔（3d）的绝缘体（3）。固定在绝缘体（3）的通孔（3d）内的中心电极（2）; 以及具有朝向中心电极（2）弯曲的前端部（4a）从而形成火花放电间隙（g）的接地电极（4）。绝缘体（3）形成为使得绝缘体（3）的外径从绝缘体（3）与台阶部分（5c）接合的接合位置朝向末端侧减小并且使得直径在在接合位置与绝缘体（3）的末端之间的轴向位置。在从绝缘体（3）的前端面（3b）朝向基端侧延伸的至少2mm的范围内，缩径比Y1 = D1 / d1为0.6以下，其中D1表示在任意确定的轴向位置测定绝缘体（3），d1表示金属壳（5）的前端部（5a）的内径。另外，在从主体配件（5）的前端面（5b）向基端侧延伸的至少1mm的范围内，间隙比Y2 =（d1-D1）/ d1为0.4以上。

10. 发明授权

EP2405542B1 Plasma jet ignition plug 有权
标题翻译：等离子体射流
公开(公告)号：EP2405542B1
公开(公告)日：2017-02-22
申请号：EP11173332.5
申请日：2011-07-08
申请人： NGK SPARK PLUG CO., LTD.
发明人： Kameda, Hiroyuki , Yamamura, Naofumi , Kasahara, Daisuke
IPC分类号： H01T13/50 , H01T13/52 , H01T13/20
CPC分类号： H01T13/50 , H01T13/20 , H01T13/52

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