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1. 发明公开

EP3159985A1 SPARK PLUG 有权转让
标题翻译：火花塞
公开(公告)号：EP3159985A1
公开(公告)日：2017-04-26
申请号：EP16195135.5
申请日：2016-10-21
申请人： NGK Spark Plug Co., Ltd.
发明人： BAN, Kenji , USAMI, Kohei
IPC分类号： H01T13/32 , H01T13/39
摘要： A spark plug (100) having a ground electrode (30), a noble metal tip (31) having a front end (37) that projects forward of a front end portion (33) of the ground electrode (30), and a center electrode (20). When S1 represents an area of an overlap region in which a region onto which the center electrode (20) is projected overlaps a region onto which the noble metal tip (31) is projected when the center electrode (20) and the noble metal tip (31) are projected onto an imaginary plane (VP) perpendicular to a center line (CL1) of the center electrode (20), and S2 represents an area of an overlap region in which a region onto which the noble metal tip (31) is projected overlaps a region onto which the ground electrode (30) is projected when the noble metal tip (31) and the ground electrode (30) are projected onto the imaginary plane (VP), 0.22≤S1/S2≤0.68 is satisfied.
摘要翻译：一种具有接地电极（30）的火花塞（100），具有从接地电极（30）的前端部（33）向前方突出的前端（37）的贵金属端头（31）电极（20）。当S1表示中心电极（20）投影到的区域与中心电极（20）和贵金属电极头（20）的贵金属电极头（31）突出的区域重叠的重叠区域的面积 31）投影到与中心电极（20）的中心线（CL1）垂直的假想平面（VP）上，S2表示重叠区域的面积，其中贵金属电极头（31）当贵金属电极头（31）和接地电极（30）投影到虚拟平面（VP）上时，投影与重叠接地电极（30）投影到的区域，满足0.22≤S1/S2≤0.68。

2. 发明公开

EP3107162A1 IGNITION PLUG AND IGNITION DEVICE 有权转让
标题翻译： ZÜNDKERZEUNDZÜNDVORRICHTUNG
公开(公告)号：EP3107162A1
公开(公告)日：2016-12-21
申请号：EP16175074.0
申请日：2016-06-17
申请人： NGK Spark Plug Co., Ltd.
发明人： BAN, Kenji , USAMI, Kohei
IPC分类号： H01T13/52
CPC分类号： F02P9/007 , F02P23/04 , H01T13/16 , H01T13/52
摘要： In an ignition plug (10), the volume V1 of a portion of an insulator (200), which projects from a metallic shell (300) to a front side (-Z), is equal to or greater than 45 mm 3 ; and an expression 0.18 ≤ V2/V1 ≤ 0.37 is satisfied, where H is a length along which the insulator (200) projects from the metallic shell (300) to the front side in an axial direction (Z), and V2 is a volume of a portion of the insulator (200), which projects from a front end of the insulator (200) along a length H/2 in the axial direction (Z).
摘要翻译：在火花塞（10）中，从金属壳（300）突出到前侧（-Z）的绝缘体（200）的一部分的体积V1等于或大于45mm 3; 并且满足表达式0.18‰V2 / V1‰¤0.37，其中H是绝缘体（200）沿着轴向（Z）从金属壳（300）向前侧突出的长度，V2为绝缘体（200）的沿着轴向（Z）的长度H / 2从绝缘体（200）的前端突出的部分的体积。

3. 发明授权

EP3159985B1 SPARK PLUG 有权转让
公开(公告)号：EP3159985B1
公开(公告)日：2020-04-01
申请号：EP16195135.5
申请日：2016-10-21
申请人： NGK Spark Plug Co., Ltd.
发明人： BAN, Kenji , USAMI, Kohei
IPC分类号： H01T13/32 , H01T13/39

4. 发明公开

EP3280012A1 IGNITION PLUG AND IGNITION DEVICE 有权转让
标题翻译：点火塞和点火装置
公开(公告)号：EP3280012A1
公开(公告)日：2018-02-07
申请号：EP17182470.9
申请日：2017-07-21
申请人： NGK Spark Plug Co., Ltd.
发明人： SAITO, Hirotaka , USAMI, Kohei , BAN, Kenji
IPC分类号： H01T13/20 , H01T13/52
CPC分类号： H01T13/36 , F02P15/00 , H01T13/20 , H01T13/52
摘要： Disclosed is an ignition plug capable of improving ignition performance while preventing pre-ignition. The ignition plug includes a center electrode, a bottomed cylindrical insulator enclosing a front end portion of the center electrode and a cylindrical metal shell holding therein the insulator. The insulator has, on a front end side thereof, a protruding portion protruding from and located frontward of a front end of the metal shell. In the ignition plug, a difference between an outer diameter of the center electrode and an inner diameter of the insulator is 0.01 mm or more; an axial length of the protruding portion is 6.7 mm to 12.7 mm; and the following condition is satisfied: 1.07 ≤ S/V1 ≤ 1.35 where S is an outer surface area of the protruding portion; and V1 is a volume of the protruding portion.
摘要翻译：公开了一种能够在防止早燃的同时改善点火性能的火花塞。火花塞包括中心电极，包围中心电极的前端部的有底圆筒形绝缘体和保持绝缘体的圆筒形金属壳。绝缘体在其前端侧具有从金属壳的前端突出并位于其前方的突出部。在火花塞中，中心电极的外径与绝缘体的内径之差为0.01mm以上，突出部分的轴向长度为6.7mm至12.7mm; 并满足以下条件：1.07≤S/V1≤1.35其中S是突出部分的外表面积; V1是突出部分的体积。

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