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公开(公告)号：EP1341282A3
公开(公告)日：2008-03-26
申请号：EP03004316.0
申请日：2003-02-27
IPC分类号： H01T21/02
CPC分类号： H01T21/02 , Y10T29/5193 , Y10T29/5195
摘要： Provided is a method of making a spark plug (100) having a noble metal chip (32) joined to an electrode main body (4m) of a ground electrode (4) by interposing therebetween an intermediate member (33). The method comprises the steps of prior to joining the noble metal chip (32) to the electrode main body (4m), joining the intermediate member (4m) and the noble metal chip (32) together, placing a noble metal chip and intermediate member assembly (34) on the electrode main body (4m) in a way as to allow the intermediate member (33) to contact the electrode main body (4m), and welding the electrode main body (4m) and the intermediate member (33) together while restricting relative movement of the electrode main body, (4m) and the intermediate member (33) without applying an urging force to a joint between the intermediate member (33) and the noble metal chip (32).
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公开(公告)号：EP1383214A2
公开(公告)日：2004-01-21
申请号：EP03254453.8
申请日：2003-07-15
发明人： Ishikawa, Masahiro
摘要： A front end portion of a center electrode 3 is a circular cylindrical center-electrode noble-metal ablation resistance portion 31 whose radius r mm and length 1 mm are determined in such a manner as to satisfy 5 ≤ 1/r 2
摘要翻译： 中心电极3的前端部是以满足5‰×1 / r 2 <20的方式确定半径r mm和长度1mm的圆筒状中心电极用金属烧蚀绝缘部31。 点火性能改善接地电极4被构造为使其前端部朝向中心电极3的方向弯曲; 并且前端面4s，32s的后端缘32t相对于中心电极贵金属烧蚀阻止部31的前端面31a位于前方。在与垂直于 中心电极3的轴线O，后端边缘32t相对于中心电极贵金属烧蚀阻挡部31的前端面31a位于外侧。点火性能改善接地电极4的一部分 其至少包括后端边缘32t是接地电极贵金属烧蚀阻挡部分32。
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公开(公告)号：EP0717190A3
公开(公告)日：1996-08-14
申请号：EP95301811.6
申请日：1995-03-17
CPC分类号： F02P17/12 , F02P5/152 , F02P17/04 , F02P2017/125 , F02P2017/128
摘要： In a device for evaluating heat resistivity of a spark plug, an ignition spark control circuit is provided to miss out an ignition spark across the electrodes of a spark plug mounted on an internal combustion engine at predetermined intervals. A counter circuit is provided to count the number of times the ignition spark is suppressed by the ignition spark control circuit. A self-ignition detection circuit is provided to detect self-ignition caused by a hot-spot on the spark plug when the ignition spark is suppressed by the ignition spark control circuit. A self-ignition counter circuit is provided to count the number of self-ignitions detected by the self-ignition detection circuit. A calculation circuit is provided to calculate the occurrence rate of self-ignition from the spark plug on the basis of the number of suppressed ignition sparks counted by the counter circuit and the number of detected self-ignitions counted by the self-ignition counter circuit. A self-ignition timing detection circuit is provided to detect the engine timing at which self-ignition is detected by the self-ignition detection circuit. A preignition timing prediction circuit is provided to predict an ignition timing when preignition of the internal combustion engine would occur on the basis of the occurrence rate of self-ignition determined by the calculation circuit and on the timing of the self-ignition detected by the self-ignition timing detection circuit.
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公开(公告)号：EP1341282A2
公开(公告)日：2003-09-03
申请号：EP03004316.0
申请日：2003-02-27
IPC分类号： H01T21/02
CPC分类号： H01T21/02 , Y10T29/5193 , Y10T29/5195
摘要： Provided is a method of making a spark plug (100) having a noble metal chip (32) joined to an electrode main body (4m) of a ground electrode (4) by interposing therebetween an intermediate member (33). The method comprises the steps of prior to joining the noble metal chip (32) to the electrode main body (4m), joining the intermediate member (4m) and the noble metal chip (32) together, placing a noble metal chip and intermediate member assembly (34) on the electrode main body (4m) in a way as to allow the intermediate member (33) to contact the electrode main body (4m), and welding the electrode main body (4m) and the intermediate member (33) together while restricting relative movement of the electrode main body, (4m) and the intermediate member (33) without applying an urging force to a joint between the intermediate member (33) and the noble metal chip (32).
摘要翻译： 提供了制备具有贵金属芯片（32）的火花塞（100）的方法，通过在其间插入的中间构件（33）接合到接地电极（4）的电极主体（4M）。 该方法包括现有的步骤，以所述贵金属芯片（32）接合到电极主体（4M），在加入中间构件（4M）和贵金属芯片（32）一起，将贵金属芯片和中间构件 组件（34）上的方式，以允许中间构件（33）以接触所述电极主体（4M），和焊接电极主体（4M）和中间构件在电极主体第（4m）（33） 在一起，同时限制不施加作用力到所述中间构件（33）和贵金属芯片（32）之间的接合在电极主体的相对运动，（4M）和中间构件（33）。
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公开(公告)号：EP1383214A3
公开(公告)日：2009-09-02
申请号：EP03254453.8
申请日：2003-07-15
发明人： Ishikawa, Masahiro
摘要： A front end portion of a center electrode 3 is a circular cylindrical center-electrode noble-metal ablation resistance portion 31 whose radius r mm and length 1 mm are determined in such a manner as to satisfy 5 ≤ 1/r 2
摘要翻译： 中心电极3的前端部是以满足5≤1/ r2 <20的方式确定的半径rmm和长度1mm的圆柱形中心电极贵金属消融电阻部31。 提高性能的接地电极4的前端部向中心电极3的方向弯曲， 前端面4s，32s的后端缘32t相对于中心电极贵金属烧蚀电阻部31的前端面31a位于前方。在与中心电极贵金属烧蚀电阻部31垂直相交的投影面P上的正投影 中心电极3的中心轴O的后端缘32t位于中心电极贵金属烧蚀电阻部31的前端面31a的外侧。点火性能提高用接地电极4的一部分 至少包括后端缘32t的部分是接地电极贵金属烧蚀电阻部分32。
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7.发明授权
公开(公告)号：EP0627622B1
公开(公告)日：2001-10-17
申请号：EP94303823.2
申请日：1994-05-26
IPC分类号： G01N27/62
CPC分类号： G01R19/0061 , G01N27/626 , G01R31/006
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公开(公告)号：EP0717190A2
公开(公告)日：1996-06-19
申请号：EP95301811.6
申请日：1995-03-17
CPC分类号： F02P17/12 , F02P5/152 , F02P17/04 , F02P2017/125 , F02P2017/128
摘要： In a device for evaluating heat resistivity of a spark plug, an ignition spark control circuit is provided to miss out an ignition spark across the electrodes of a spark plug mounted on an internal combustion engine at predetermined intervals. A counter circuit is provided to count the number of times the ignition spark is suppressed by the ignition spark control circuit. A self-ignition detection circuit is provided to detect self-ignition caused by a hot-spot on the spark plug when the ignition spark is suppressed by the ignition spark control circuit. A self-ignition counter circuit is provided to count the number of self-ignitions detected by the self-ignition detection circuit. A calculation circuit is provided to calculate the occurrence rate of self-ignition from the spark plug on the basis of the number of suppressed ignition sparks counted by the counter circuit and the number of detected self-ignitions counted by the self-ignition counter circuit. A self-ignition timing detection circuit is provided to detect the engine timing at which self-ignition is detected by the self-ignition detection circuit. A preignition timing prediction circuit is provided to predict an ignition timing when preignition of the internal combustion engine would occur on the basis of the occurrence rate of self-ignition determined by the calculation circuit and on the timing of the self-ignition detected by the self-ignition timing detection circuit.
摘要翻译： 在用于评估火花塞的热阻率的装置中，设置有点火火花控制电路，用于以预定的间隔错开安装在内燃机上的火花塞的电极上的点火火花。 提供计数器电路来计数点火火花控制电路抑制点火火花的次数。 提供自点火检测电路，用于检测点火火花控制电路抑制点火火花时由火花塞上的热点引起的自点火。 提供自点火计数器电路以对自点火检测电路检测到的自点火的次数进行计数。 提供计算电路，用于基于由计数器电路计数的抑制的点火火花的数量和由自点火计数器电路计数的检测到的自点火的数量来计算来自火花塞的自燃的发生率。 提供自点火正时检测电路以检测由自点火检测电路检测到自点火的发动机正时。 提供预引燃时间预测电路，以根据由计算电路确定的自燃的发生率以及由自身检测的自燃的时间来预测当内燃机的预燃将发生时的点火正时 - 点火正时检测电路。
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公开(公告)号：EP1341282B1
公开(公告)日：2011-07-27
申请号：EP03004316.0
申请日：2003-02-27
IPC分类号： H01T21/02
CPC分类号： H01T21/02 , Y10T29/5193 , Y10T29/5195
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公开(公告)号：EP0717190B1
公开(公告)日：1998-12-02
申请号：EP95301811.6
申请日：1995-03-17
CPC分类号： F02P17/12 , F02P5/152 , F02P17/04 , F02P2017/125 , F02P2017/128
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