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    • 3. 发明申请
    • Ignition coil
    • 点火线圈
    • US20080264397A1
    • 2008-10-30
    • US12150162
    • 2008-04-25
    • Shuichi MatsubayashiIkuo HirayamaMasami KojimaTakashi TauchiTakeshi MorimotoAtsushi Iwami
    • Shuichi MatsubayashiIkuo HirayamaMasami KojimaTakashi TauchiTakeshi MorimotoAtsushi Iwami
    • H01F38/12
    • H01F38/12H01F21/12H01F27/022H01F27/306H01F2038/122
    • 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.
    • 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 。
    • 9. 发明授权
    • Ignition coil for an internal combustion engine
    • 内燃机点火线圈
    • US5778863A
    • 1998-07-14
    • US567707
    • 1995-12-05
    • Kazutoyo OosukaMasami KojimaShozo Ikezima
    • Kazutoyo OosukaMasami KojimaShozo Ikezima
    • H01B3/46H01F27/245H01F38/12F02P13/00H01F27/12
    • H01F27/245H01F38/12F02B2275/18H01F2038/122
    • To provide an ignition coil for an internal combustion engine which improves high-voltage sealing performance and moreover reduces housing outer diameter, an ignition coil for an internal combustion engine is made up of a transformer portion of cylindrical configuration housed within a housing chamber of a case, a control-circuit portion which is positioned on one end portion of this transformer portion and causes primary current of the transformer portion to be intermittent, and a connecting portion which is positioned on another end portion of the transformer portion and supplies secondary voltage of the transformer portion to a spark plug. The interior of the housing chamber is filled with insulating oil which has a flash point of 180.degree. C. or more, a total acid number of oxidation stability of 0.6 mgKOH/g or less, a pour point of -20.degree. C. or less with no cloudiness occurring before that temperature is reached, and a kinematic viscosity of not less than 20 cSt and not more than 180 cSt at 40.degree. C.
    • 为了提供一种提高高压密封性能的内燃机的点火线圈,并且还减小了壳体外径,用于内燃机的点火线圈由容纳在壳体的壳体室内的圆柱形构造的变压器部分 控制电路部,其位于该变压器部的一端部,使变压器部的一次电流间断;以及连接部,该连接部位于变压器部的另一端部, 变压器部分到火花塞。 容纳室的内部填充有闪点为180℃以上的绝缘油,氧化稳定性的总酸值为0.6mgKOH / g以下,倾点为-20℃以下 在达到该温度之前不发生混浊,在40℃下的运动粘度不小于20cSt且不大于180cSt。