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公开(公告)号：EP1022829A1
公开(公告)日：2000-07-26
申请号：EP00300339.9
申请日：2000-01-19
摘要： A spark plug is disclosed in which a hexagonal portion of a metallic shell (5) has a width across flat W of not greater than 14 mm. Talc is filled into a space defined by the metallic shell (5) and an insulator (1) to thereby form a cushion-material charged portion (9). The cushion-material charged portion (9) has an axial length L of from 0.5 mm to 10.0 mm inclusive and a thickness M of from 0.5 mm to 1.3 mm inclusive.
摘要翻译： 公开了一种火花塞，其中金属壳（5）的六边形部分具有不大于14mm的平坦W的宽度。 滑石被填充到由金属壳（5）和绝缘体（1）限定的空间中，从而形成缓冲材料充电部分（9）。 缓冲材料带电部（9）的轴向长度L为0.5mm〜10.0mm，厚度M为0.5mm〜1.3mm。
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公开(公告)号：EP1544970B1
公开(公告)日：2007-05-16
申请号：EP04030099.8
申请日：2004-12-18
CPC分类号： H01T13/467 , H01T13/39
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公开(公告)号：EP1544970A1
公开(公告)日：2005-06-22
申请号：EP04030099.8
申请日：2004-12-18
CPC分类号： H01T13/467 , H01T13/39
摘要： A spark plug including: an insulator (2) having an axial hole (6); a center electrode (3) disposed in a tip end side of the axial hole (6) of the insulator (2); a metal shell (1) surrounding the insulator (2); a first ground electrode (4) having one end bonded to the metal shell (1); a noble metal tip (41) joined to an inner side face of another end portion of the first ground electrode body disposed opposite a tip end face of the center electrode (3); and a second ground electrode (5) having one end bonded to the metal shell (1), and another end face disposed opposite a side peripheral face of said insulator (2) to form a second discharge gap (g2), wherein specific relationships are satisfied, as defined herein: 0.12 ≤ S ≤ 1.15, 0.3 ≤ t ≤ 1.5, A + 0.7(F-A) ≤ 1.8 M, and -0.3 ≤ L/H.
摘要翻译： 一种火花塞，包括：具有轴向孔（6）的绝缘体（2） 配置在绝缘体（2）的轴孔（6）的前端侧的中心电极（3）; 围绕绝缘体（2）的金属壳（1）; 第一接地电极（4），其一端结合到所述金属壳（1）; 与所述第一接地电极体的与所述中心电极的前端面相对配置的另一端部的内侧面接合的贵金属端头; 以及第二接地电极（5），其一端与所述金属壳（1）接合，另一端面与所述绝缘体（2）的侧周面相对配置，形成第二放电间隙（g2） 满足，如本文所定义：0.12≤S≤1.15,0.3≤t≤1.5，A + 0.7（FA）≤1.8M和-0.3≤L/ H。
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公开(公告)号：EP1022829B1
公开(公告)日：2003-09-10
申请号：EP00300339.9
申请日：2000-01-19
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