公开(公告)号：US07849843B2

公开(公告)日：2010-12-14

申请号：US12060456

申请日：2008-04-01

申请人： Masami Kojima ,  Takashi Tauchi ,  Takeshi Morimoto ,  Atsushi Iwami ,  Yoshitaka Satoh ,  Shuichi Matsubayashi ,  Ikuo Hirayama

发明人： Masami Kojima ,  Takashi Tauchi ,  Takeshi Morimoto ,  Atsushi Iwami ,  Yoshitaka Satoh ,  Shuichi Matsubayashi ,  Ikuo Hirayama

IPC分类号： F02P3/02

CPC分类号： H01F38/12

摘要： An ignition coil is equipped with a sparkplug of an engine. The ignition coil includes a coil portion, a tower portion, and a plug cap. The coil portion includes a coil case accommodating a primary and secondary coils being coaxial with each other. The coil portion has an end connected with the plug cap via the tower portion. The plug cap is press-fitted with the sparkplug. The coil case has an outer periphery from which a flange portion projects radially outward in a flange-projecting direction. The tower cylinder portion has a tower axis substantially in parallel with a coil axis of the primary and secondary coils. The tower axis is offset from the coil axis in a tower-offset direction. The tower-offset direction is substantially the same as the flange-projecting direction.

摘要翻译： 点火线圈配有发动机的火花塞。 点火线圈包括线圈部分，塔架部分和塞帽。 线圈部分包括容纳彼此同轴的初级和次级线圈的线圈壳体。 线圈部分具有经由塔架部分与塞帽连接的端部。 插头盖与火花塞压配合。 线圈壳体具有外周，凸缘部在该外周缘沿凸缘方向从径向向外突出。 塔筒部分具有与初级和次级线圈的线圈轴线基本平行的塔架轴线。 塔轴在塔偏移方向上偏离线圈轴。 塔偏移方向基本上与凸缘方向相同。

公开(公告)号：US20080266040A1

公开(公告)日：2008-10-30

申请号：US12150208

申请日：2008-04-25

申请人： Shuichi Matsubayashi ,  Ikuo Hirayama ,  Atsushi Iwami ,  Takeshi Morimoto

发明人： Shuichi Matsubayashi ,  Ikuo Hirayama ,  Atsushi Iwami ,  Takeshi Morimoto

IPC分类号： H01F27/02

CPC分类号： H01F38/12 ,  H01F27/022 ,  H01F27/263 ,  H01F27/325 ,  H01F2038/122 ,  H01F2038/127

摘要： A high-strength ignition coil that can prevent distortion arising from pin marks formed on a surface of a core and makes it less likely for insulating resin to be cracked. The coil assembly is housed in a coil case. A casting material is filled into a gap between the coil case and the coil assembly and gaps which the coil assembly has. The coil assembly is comprised of a coil pair including a cylindrical primary coil and a secondary coil disposed concentrically with the primary coil, and a core. The core is fitted into a central space of the coil pair and forms a magnetic path. The core is coated with mold resin. Concave portions of pin marks formed on a mold resin coating by removal of core fixing pins when the mold resin coating is formed are filled with mold resin.

摘要翻译： 一种高强度点火线圈，能够防止由于形成在芯的表面上的针痕引起的变形，并且使得树脂绝缘不易破裂。 线圈组件容纳在线圈壳体中。 将铸造材料填充到线圈壳体和线圈组件之间的间隙以及线圈组件具有的间隙。 线圈组件包括线圈对，该线圈对包括圆柱形初级线圈和与初级线圈同心设置的次级线圈和芯。 芯部装配在线圈对的中心空间中并形成磁路。 核心涂有模具树脂。 在模塑树脂涂层形成时通过去除芯固定销在模具树脂涂层上形成的针痕的凹部填充有模制树脂。

公开(公告)号：US08552629B2

公开(公告)日：2013-10-08

申请号：US13546327

申请日：2012-07-11

申请人： Takayuki Inohara ,  Shinichi Okabe ,  Takanobu Aochi ,  Atsushi Iwami ,  Masamichi Shibata

发明人： Takayuki Inohara ,  Shinichi Okabe ,  Takanobu Aochi ,  Atsushi Iwami ,  Masamichi Shibata

IPC分类号： H01T13/20

CPC分类号： H01T13/32

摘要： A spark plug for an internal combustion engine is provided which is equipped with a tip protrusion disposed on a top of a hollow cylindrical housing of the spark plug. The spark plug also includes a center electrode retained in a porcelain insulator disposed inside the housing and a ground electrode is joined to the housing so as to form a spark gap. The tip protrusion serves to direct a flow of gas to be ignited by a spark produced in the spark gap and is shaped to have a radial width extending in a radial direction of the housing and a circumferential width extending in a circumferential direction of the cylindrical housing. The radial width is greater than the circumferential width. This enhances the efficiency in guiding the flow of gas toward the spark gap.

摘要翻译： 提供了一种用于内燃机的火花塞，其配备有设置在火花塞的中空圆柱形壳体的顶部上的尖端突起。 火花塞还包括保持在设置在壳体内部的瓷绝缘体中的中心电极，并且接地电极接合到壳体以形成火花隙。 尖端突起用于引导由火花隙中产生的火花点燃的气体流，并且成形为具有沿着壳体的径向延伸的径向宽度，并且沿圆柱形壳体的圆周方向延伸的周向宽度 。 径向宽度大于圆周宽度。 这提高了引导气体朝向火花间隙的流动的效率。

公开(公告)号：US07928821B2

公开(公告)日：2011-04-19

申请号：US12150162

申请日：2008-04-25

申请人： Shuichi Matsubayashi ,  Ikuo Hirayama ,  Masami Kojima ,  Takashi Tauchi ,  Takeshi Morimoto ,  Atsushi Iwami

发明人： Shuichi Matsubayashi ,  Ikuo Hirayama ,  Masami Kojima ,  Takashi Tauchi ,  Takeshi Morimoto ,  Atsushi Iwami

IPC分类号： H01F27/02 ,  H01F38/12

CPC分类号： H01F38/12 ,  H01F21/12 ,  H01F27/022 ,  H01F27/306 ,  H01F2038/122

摘要： A high-strength ignition coil that can reduce stress produced in a coil case and prevent a casting material from being cracked when the ignition coil is mounted on an engine block. A coil case has a mounting flange on an outer surface thereof. A coil assembly is housed in the coil case. A casting material is filled into a gap between the coil case and the coil assembly and gaps which the coil assembly has. A plurality of first guide ribs are provided on an inner wall surface of the coil case or an outer surface of the coil assembly, for positioning the outer surface of the coil assembly with respect to the inner wall surface of the coil case. A limited area in which there is no first guide rib is provided on the inner wall surface of the coil case which faces the mounting flange, or the outer surface of the coil assembly which faces the mounting flange via the inner wall surface of the coil case.

摘要翻译： 高温点火线圈，当点火线圈安装在发动机缸体上时，能够减轻线圈壳体产生的应力，防止铸造材料破裂。 线圈壳体在其外表面上具有安装凸缘。 线圈组件容纳在线圈壳体中。 将铸造材料填充到线圈壳体和线圈组件之间的间隙以及线圈组件具有的间隙。 多个第一引导肋设置在线圈壳体的内壁表面或线圈组件的外表面上，用于相对于线圈壳体的内壁表面定位线圈组件的外表面。 在线圈壳体的面向安装凸缘的内壁面或线圈组件的面向安装凸缘的外表面经由线圈壳体的内壁面设置有无第一引导肋的有限区域 。