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公开(公告)号：EP2950406B1
公开(公告)日：2017-07-12
申请号：EP15169602.8
申请日：2015-05-28
发明人： Takaoka, Katsuya , Kurosawa, Kazuhiro , Tanaka, Kuniharu , Yoshida, Haruki , Kurono, Hirokazu , Honda, Toshitaka
IPC分类号： H01T13/41
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公开(公告)号：EP2950406A1
公开(公告)日：2015-12-02
申请号：EP15169602.8
申请日：2015-05-28
发明人： Takaoka, Katsuya , Kurosawa, Kazuhiro , Tanaka, Kuniharu , Yoshida, Haruki , Kurono, Hirokazu , Honda, Toshitaka
IPC分类号： H01T13/41
摘要： A spark plug including an insulator having an axial hole, a center electrode held at one end side and a terminal electrode held at the other end side of the axial hole, an electrical connection portion electrically connecting the center electrode and the terminal electrode inside the axial hole, wherein the electrical connection portion includes a conductor including a ceramic phase and a metal wire having a spiral structure portion, wherein the metal wire has a wire diameter of 0.1 mm or greater and 0.5 mm or smaller, and wherein the spiral structure portion of the metal wire is configured such that an outer diameter thereof is 1.0 mm or greater and 3 mm or smaller, a pitch thereof is 0.3 mm or greater and 1 mm or smaller, and a height thereof is 8 mm or greater and 30 mm or smaller.
摘要翻译： 1。一种火花塞，其特征在于，具备：具有轴孔的绝缘体;保持于一端侧的中心电极;保持于轴孔的另一端侧的端子电极;电连接部，将中心电极与端子电极在轴向 其中所述电连接部分包括包含陶瓷相的导体和具有螺旋结构部分的金属线，其中所述金属线具有0.1mm或更大且0.5mm或更小的线直径，并且其中所述螺旋结构部分 金属线的外径为1.0mm以上3mm以下，其间距为0.3mm以上1mm以下，高度为8mm以上30mm以下 。
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公开(公告)号：EP2945234A1
公开(公告)日：2015-11-18
申请号：EP15166538.7
申请日：2015-05-06
发明人： Takaoka, Katsuya , Kurosawa, Kazuhiro , Tanaka, Kuniharu , Yoshida, Haruki , Kurono, Hirokazu , Honda, Toshitaka
摘要： A spark plug includes an insulator having a through hole formed therein in a direction of an axis, a center electrode disposed in a front side of the through hole, a metal terminal disposed in a rear side of the through hole, an electrical connection part arranged in the through hole to establish electrical connection between the center electrode and the metal terminal and a metal shell holding therein the insulator. The electrical connection part has a conductor including a conductive material and at least one kind of Fe-containing oxide material. The Fe-containing oxide material contains at least FeO. The conductor satisfies a relationship of 0.06 ≤ S1/(S1+S2) ≤ 0.46 where, in a cross section taken along the axis, S1 is an area occupied by the conductive material and S2 is an area occupied by the Fe-containing oxide material.
摘要翻译： 本发明提供一种火花塞，其包括绝缘体，该绝缘体具有沿轴线方向形成在其中的通孔，设置在通孔前侧的中心电极，设置在通孔后侧的金属端子，设置有电连接部件 在通孔中建立中心电极和金属端子之间的电连接以及保持绝缘体的金属壳。 电连接部分具有包含导电材料和至少一种含Fe氧化物材料的导体。 含Fe氧化物材料至少含有FeO。 导体满足0.06≤S1/（S1 + S2）≤0.46的关系，其中，在沿轴线截取的截面中，S1是由导电材料占据的面积，S2是由含Fe氧化物材料占据的面积 。
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公开(公告)号：EP2854243B1
公开(公告)日：2018-10-31
申请号：EP14186862.0
申请日：2014-09-29
摘要： An ignition plug (1) includes an insulator (2) having an axial hole (4) extending therethrough in the direction of an axial line (CL1), a center electrode (5) inserted into a forward end portion of the axial hole (4), and a metallic shell (3) disposed externally of the insulator (2). The insulator (2) includes a step portion (14) engaged with an inner circumferential portion of the metallic shell (3) and a leg portion (13) extending forward from the forward end of the step portion (14). The porosity of the leg portion (13) is 3.0% or less. Of three regions of the leg portion (13) obtained by radially trisecting it in a cross section perpendicular to the axial line (CL1), the outermost region is defined as a first region (AR1) and the innermost region is defined as a second region (AR2). The porosity of the first region (AR1) is equal to or more than 1.20 times the porosity of the second region (AR2).
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公开(公告)号：EP2096726A2
公开(公告)日：2009-09-02
申请号：EP09153987.4
申请日：2009-02-27
发明人： Honda, Toshitaka , Kurono, Hirokazu
摘要： A method for manufacturing an insulator includes: preparing a press pin (50) and a forming die (80) having a cavity (83), the press pin (50) including a pin-side spiral portion (54) formed on a first position; filling a raw powder (GP) into the cavity (80); arranging the press pin (50) within the cavity (83); pressing the raw powder (GP) within the cavity (83) along with the press pin (50), and obtaining a green body (PC1) formed with a green body-side spiral portion; releasing the green body (PC1) along with the press pin (50) from the cavity (83); retreating the press pin (50) with respect to the green body (PC1) while rotating the press pin (50) relative to the green body (PC1) around an axis, and extracting the press pin (50) from the green body (PC1) ; and removing an unnecessary portion from the green body (PC1). The first position is positioned such that the green body-side spiral portion is located in the unnecessary portion of the green body (PC1).
摘要翻译： 一种用于制造绝缘体上的方法包括：制备压销（50）和形成所述（80）具有空腔（83），所述压销（50）包括一个销侧螺旋部（54）上形成的第一位置 ; 填充原料粉末（GP）进入空腔（80）; 布置在空腔内的压销（50）（83）; 与所述压销（50）沿所述空腔（83）内加压的原料粉末（GP），和获得具有生坯体侧螺旋部形成的生坯体（PC1）; 与从所述腔（83）的压销（50）沿释放所述生坯体（PC1）; 相对于所述生坯体（PC1）在旋转的同时压销（50）相对于所述生坯体（PC1）在轴周围，并且提取从生坯压销（50）（PC1后退压销（50） ）; 和从所述生坯体（PC1）不需要的部分除去。 第一位置被定位检查没有所述生坯体侧螺旋部位于生坯体（PC1）的不需要的部分。
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6.发明公开Test method and apparatus for spark plug insulator 有权Prüfverfahrenund -vorrichtungfürZündkerzenisolatoren
公开(公告)号：EP2006699A2
公开(公告)日：2008-12-24
申请号：EP08008850.3
申请日：2008-05-13
IPC分类号： G01R31/38
CPC分类号： H01T13/60
摘要： There is provided a test method for detecting the presence or absence of a defect in a spark plug insulator, including a reference voltage determination process, a test area determination process, a test voltage determination process and a current detection process. In the reference voltage determination process, a reference voltage V F is determined. In the test area and voltage determined processes, test area and voltage are determined so as not to incur a flashover on the basis of a reference insulator of the same material, shape and size as the spark plug insulator when the reference insulator is placed in position between first and second test electrodes. In the current detection step, the test voltage is applied between the first and second test electrodes to detect an electric current between the first and second test electrodes.
摘要翻译： 提供了一种用于检测火花塞绝缘子中缺陷的存在或不存在的测试方法，包括参考电压确定过程，测试区域确定过程，测试电压确定过程和电流检测过程。 在参考电压确定过程中，确定参考电压V F。 在测试区域和电压确定过程中，确定测试区域和电压，以便在参考绝缘子放置就位时基于与火花塞绝缘体相同的材料，形状和尺寸的参考绝缘体不引起闪络 在第一和第二测试电极之间。 在电流检测步骤中，在第一和第二测试电极之间施加测试电压，以检测第一和第二测试电极之间的电流。
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7.发明授权
公开(公告)号：EP2224560B1
公开(公告)日：2017-10-18
申请号：EP10154924.4
申请日：2010-02-26
发明人： Kurono, Hirokazu , Honda, Toshitaka
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公开(公告)号：EP2096726A3
公开(公告)日：2012-11-14
申请号：EP09153987.4
申请日：2009-02-27
发明人： Honda, Toshitaka , Kurono, Hirokazu
摘要： A method for manufacturing an insulator includes: preparing a press pin (50) and a forming die (80) having a cavity (83), the press pin (50) including a pin-side spiral portion (54) formed on a first position; filling a raw powder (GP) into the cavity (80); arranging the press pin (50) within the cavity (83); pressing the raw powder (GP) within the cavity (83) along with the press pin (50), and obtaining a green body (PC1) formed with a green body-side spiral portion; releasing the green body (PC1) along with the press pin (50) from the cavity (83); retreating the press pin (50) with respect to the green body (PC1) while rotating the press pin (50) relative to the green body (PC1) around an axis, and extracting the press pin (50) from the green body (PC1) ; and removing an unnecessary portion from the green body (PC1). The first position is positioned such that the green body-side spiral portion is located in the unnecessary portion of the green body (PC1).
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公开(公告)号：EP3252891A1
公开(公告)日：2017-12-06
申请号：EP17173734.9
申请日：2017-05-31
发明人： Yoshida, Haruki , Tanaka, Kuniharu , Yokoyama, Yutaka , Kondo, Shun , Kurono, Hirokazu , Saji, Toshimasa
IPC分类号： H01T13/38
摘要： A spark plug 1 having an insulator 3 with a leg portion 16 whose outer circumferential surface has an arithmetic mean roughness Ra of 0.5 µm or less. The leg portion has a first section 41, a second section 42, and a third section 43. The first section has an outer diameter that decreases toward the forward end of the first section. The second section is located forward of and adjacent to the first section and its outer diameter decreases toward the forward end of the second section. The outer circumferential surface of the second section is located inward of a first straight line L41 passing through the base and forward ends of the outer circumferential surface of the first section. The third section is located forward of and adjacent to the second section. The outer diameter of the third section is equal to or less than a forward end outer diameter Ds of the second section over the entire third section.
摘要翻译： 具有绝缘体3的火花塞1具有外周面的算术平均粗糙度Ra为0.5μm以下的脚部16。 腿部具有第一部分41，第二部分42和第三部分43.第一部分具有朝向第一部分的前端减小的外径。 第二部分位于第一部分的前方并且与第一部分相邻，并且其外径朝向第二部分的前端减小。 第二部分的外圆周表面位于穿过基部和第一部分的外圆周表面的前端的第一直线L41的内侧。 第三部分位于第二部分的前方并与之相邻。 第三部分的外径在整个第三部分上等于或小于第二部分的前端外径Ds。
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公开(公告)号：EP2854243A1
公开(公告)日：2015-04-01
申请号：EP14186862.0
申请日：2014-09-29
摘要： An ignition plug (1) includes an insulator (2) having an axial hole (4) extending therethrough in the direction of an axial line (CL1), a center electrode (5) inserted into a forward end portion of the axial hole (4), and a metallic shell (3) disposed externally of the insulator (2). The insulator (2) includes a step portion (14) engaged with an inner circumferential portion of the metallic shell (3) and a leg portion (13) extending forward from the forward end of the step portion (14). The porosity of the leg portion (13) is 3.0% or less. Of three regions of the leg portion (13) obtained by radially trisecting it in a cross section perpendicular to the axial line (CL1), the outermost region is defined as a first region (AR1) and the innermost region is defined as a second region (AR2). The porosity of the first region (AR1) is equal to or more than 1.20 times the porosity of the second region (AR2).
摘要翻译： 火花塞（1）包括具有沿轴线方向（CL1）延伸穿过其中的轴向孔（4）的绝缘体（2），插入轴向孔（4）的前端部分中的中心电极（5） ）以及布置在绝缘体（2）外部的金属壳（3）。 绝缘体2包括与金属壳3的内圆周部分接合的台阶部分14和从台阶部分14的前端向前延伸的腿部部分13。 腿部（13）的气孔率为3.0％以下。 在与轴线（CL1）垂直的截面中将其径向三等分的腿部（13）的三个区域中，最外侧的区域定义为第一区域（AR1），最内侧的区域定义为第二区域 （AR2）。 第一区域（AR1）的孔隙率等于或大于第二区域（AR2）的孔隙率的1.20倍。
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