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1. 发明授权

US07392798B2 Multiple-spark ignition system for internal combustion engine 有权
标题翻译：内燃机多火花点火系统
公开(公告)号：US07392798B2
公开(公告)日：2008-07-01
申请号：US11699078
申请日：2007-01-29
申请人： Jyunichi Wada , Toru Yoshinaga
发明人： Jyunichi Wada , Toru Yoshinaga
IPC分类号： F02P3/02 , F02P1/00
CPC分类号： F02P15/08 , F02P3/051 , F02P5/1502 , F02P9/007 , Y02T10/46
摘要： An ignition system for an internal combustion engine includes an ignition coil, electric power supply circuit, a switching transistor, engine condition detecting element or unit that detects a signal relating to flow speed of air-fuel-mixture gas in the engine, and ignition control unit that controls the switching transistor to provide multiple ignition sparks in a predetermined ignition period. The ignition control unit controls the switching transistor to maintain each of the ignition sparks according to the signal relating to the flow speed of air-fuel-mixture gas in the engine to maintain sufficient spark energy for igniting the air-fuel mixture gas.
摘要翻译：一种用于内燃机的点火系统包括点火线圈，电力供应电路，开关晶体管，发动机状态检测元件或检测与发动机中的空气 - 燃料混合气体的流速相关的信号的单元，以及点火控制单元，其控制开关晶体管以在预定的点火周期内提供多个点火火花。点火控制单元控制开关晶体管，以根据与发动机中空气 - 燃料混合气体的流速相关的信号来维持每个点火火花，以保持足够的火花能量来点燃空气 - 燃料混合气体。

2. 发明授权

US06781500B2 Ingition coil for internal combustion engine 有权
标题翻译：内燃机引擎线圈
公开(公告)号：US06781500B2
公开(公告)日：2004-08-24
申请号：US10139639
申请日：2002-05-07
申请人： Kazuhide Kawai , Masafuyu Sano , Shigeya Abe , Masahiro Inagaki , Hajime Kasai , Hidetoshi Nakashima , Jyunichi Wada , Koji Tsunenaga , Kazutoyo Osuka , Masahiko Aoyama , Takashi Tauchi , Kaneo Buma , Yoshitaka Sato , Katsunori Akimoto
发明人： Kazuhide Kawai , Masafuyu Sano , Shigeya Abe , Masahiro Inagaki , Hajime Kasai , Hidetoshi Nakashima , Jyunichi Wada , Koji Tsunenaga , Kazutoyo Osuka , Masahiko Aoyama , Takashi Tauchi , Kaneo Buma , Yoshitaka Sato , Katsunori Akimoto
IPC分类号： H01F2730
CPC分类号： H01F38/12 , H01F2038/122
摘要： In a stick coil, there is disclosed an ignition coil for an internal combustion engine which can prevent a crack (a collar leak) from being generated due to a thermal stress. In this ignition coil, the structure is made such that a size (L) of a portion which is in parallel to an axial direction of a primary spool (121) in a projection portion (121b) is larger than a size (T) of a portion which is in parallel to an orthogonal direction to the axial direction of the primary spool (121). Accordingly, a frontal projected area of the projection portion (121b) as seen from a flowing direction of a resin becomes small, a resin flow is hard to get out of order at a time when the resin flows through a portion corresponding to the projection portion (121b) at the forming time, and a convoluted void and a weld are hard to be generated. Accordingly, since it is possible to prevent a mechanical strength in a root portion of the projection portion (121b) from being reduced, it is possible to previously prevent a crack from being generated in the root portion of the projection portion (the collar portion) (121b) due to a thermal stress so as to reduce an insulating property.
摘要翻译：在棒状线圈中，公开了一种用于内燃机的点火线圈，其可以防止由于热应力而产生裂纹（轴环泄漏）。在该点火线圈中，该结构被制成使得与突起部分（121b）中的初级线轴（121）的轴向方向平行的部分的尺寸（L）大于与主卷轴（121）的轴向的正交方向平行的部分。因此，从树脂的流动方向看，突出部分（121b）的正面投影面积变小，在树脂流过与突起部分相对应的部分时，树脂流动难以变得不顺利（121b），并且难以产生卷积的空隙和焊缝。因此，由于可以防止突起部（121b）的根部的机械强度降低，所以能够防止在突起部（轴环部）的根部产生裂纹，（121b）由于热应力而降低绝缘性能。

3. 发明授权

US06720854B2 Ignition coil having air layers as insulators and manufacturing method therefor 有权
标题翻译：具有作为绝缘体的空气层的点火线圈及其制造方法
公开(公告)号：US06720854B2
公开(公告)日：2004-04-13
申请号：US10282112
申请日：2002-10-29
申请人： Jyunichi Wada , Takashi Nagata
发明人： Jyunichi Wada , Takashi Nagata
IPC分类号： H01F2702
CPC分类号： H01F27/324 , H01F27/085 , H01F27/327 , H01F38/12 , H01F2038/122
摘要： An ignition coil has a case and a central core placed in the case. A secondary spool is wound with a secondary coil and placed outside the central core in the case. A cylindrical primary spool is wound with a primary coil and placed outside the secondary spool in the case. A resin insulator is filled in the case to maintain the insulation between each member. Air layer is partitioned in at least one of a gap between the central core and the secondary spool and a gap between the primary spool and the case.
摘要翻译：点火线圈具有壳体和放置在壳体中的中心芯体。次级线轴用次级线圈缠绕并放置在壳体中心芯的外侧。圆筒形初级线轴用初级线圈缠绕并放置在外侧的次级线轴外侧。树脂绝缘体填充在壳体中以保持每个构件之间的绝缘。空气层在中心芯和次级线轴之间的间隙中的至少一个以及初级线轴和壳体之间的间隙中分隔开。

4. 发明授权

US06655368B2 Ignition coil assembly for engine 有权
标题翻译：发动机点火线圈组件
公开(公告)号：US06655368B2
公开(公告)日：2003-12-02
申请号：US10420865
申请日：2003-04-23
申请人： Jyunichi Wada
发明人： Jyunichi Wada
IPC分类号： F02P1508
CPC分类号： F02P3/02 , F02D2400/21 , F02D2400/22 , F02M51/005
摘要： In an ignition coil assembly, a plurality of ignition coils is arranged to be electrically connected to spark plugs received in plug holes of an engine, and a base member detachably engages and holds the ignition coils at corresponding positions, which correspond to positions of the plug holes. Disengaging force for disengaging each ignition coil and the base member from each other is set to be smaller than disengaging force for disengaging each ignition coil and the corresponding one of the spark plugs from each other.
摘要翻译：在点火线圈组件中，多个点火线圈被布置成电连接到容纳在发动机的插头孔中的火花塞，并且基座构件可拆卸地接合并保持点火线圈在对应的位置，其对应于插头的位置孔。将每个点火线圈和基座构件彼此分离的分离力被设定为小于用于使每个点火线圈和相应的一个火花塞彼此分离的分离力。

5. 发明申请

US20050168313A1 Stick-shaped ignition coil having internal connecting structure 有权
标题翻译：具有内部连接结构的棒状点火线圈
公开(公告)号：US20050168313A1
公开(公告)日：2005-08-04
申请号：US11046708
申请日：2005-02-01
申请人： Jyunichi Wada
发明人： Jyunichi Wada
IPC分类号： H01F5/02 , H01F27/30 , H01F27/32 , H01F38/12 , H01F27/02
CPC分类号： H01F5/02 , H01F27/306 , H01F27/325 , H01F38/12 , H01F2038/122
摘要： A stick-shaped ignition coil includes a primary and secondary coils, a plurality of annular protrusions, a thin film sheet, a sub-assembly and a case. The annular protrusions are integrally formed on the outer circumferential periphery of the upper end portion of the primary coil arranged on the radially outer side. The thin film sheet covers the primary coil and the outer circumferential periphery of the plurality of annular protrusions. The sub-assembly is press-inserted to the outer circumferential periphery of the plurality of annular protrusions via the thin film sheet. The sub-assembly, which is electrically insulative, supports a lead portion of the primary winding. The case is press-inserted to the outer circumferential periphery of the cylindrical member.
摘要翻译：棒状点火线圈包括一次和二次线圈，多个环形突起，薄膜片，子组件和壳体。环形突起一体地形成在布置在径向外侧的初级线圈的上端部的外圆周上。薄膜片覆盖多个环状突起部的初级线圈和外周周缘。子组件通过薄膜片压入多个环形突起的外周周边。电气绝缘的子组件支撑初级绕组的引线部分。壳体被压入到圆柱形构件的外圆周上。

6. 发明申请

US20060214758A1 Ignition coil having center core 有权
标题翻译：点火线圈具有中心芯
公开(公告)号：US20060214758A1
公开(公告)日：2006-09-28
申请号：US11389161
申请日：2006-03-27
申请人： Jyunichi Wada
发明人： Jyunichi Wada
IPC分类号： H01F27/02
CPC分类号： H01F38/12 , H01F27/24 , H01F27/266 , H01F27/325 , H01F27/346 , H01F2038/122
摘要： An ignition coil includes a primary coil, a secondary coil, a spool, and a center core. The primary coil and the secondary coil are arranged substantially coaxially with each other. The secondary coil is on an inner side of the primary coil. The secondary coil is wound around the spool. The center core is inside of the spool. The spool has a tapered inner surface, which is axially defined at least partially in the spool. The tapered inner surface has the diameter that increases as being distant from a high voltage tip end of the secondary coil on the high voltage side of the secondary coil. The center core has a tapered outer surface, which is axially defined at least partially in the center core. The tapered outer surface has the diameter that increases as being distant from the high voltage tip end of the secondary coil.
摘要翻译：点火线圈包括初级线圈，次级线圈，线轴和中心芯。初级线圈和次级线圈彼此基本同轴地布置。次级线圈位于初级线圈的内侧。次级线圈缠绕在线轴上。中心芯在线轴内。阀芯具有锥形内表面，该内表面至少部分地轴向限定在阀芯中。锥形内表面的直径随着次级线圈的高压侧上的次级线圈的高压尖端而增加。中心芯具有锥形的外表面，其至少部分地轴向限定在中心芯中。锥形外表面的直径随着与次级线圈的高压尖端的距离而增加。

7. 发明授权

US07098765B2 Ignition coil having magnetic flux reducing inner structure 有权
标题翻译：点火线圈具有磁通减少内部结构
公开(公告)号：US07098765B2
公开(公告)日：2006-08-29
申请号：US10987093
申请日：2004-11-15
申请人： Norihito Fujiyama , Jyunichi Wada
发明人： Norihito Fujiyama , Jyunichi Wada
IPC分类号： H01F27/02
CPC分类号： H01F38/12 , H01F3/14 , H01F29/146 , H01F2038/122 , H01F2038/127
摘要： An ignition coil is constructed of a center core, a primary coil, a secondary coil, and an outer circumferential core. The center core and the outer circumferential core are connected with each other via a first magnetoresistive member on one axial end side. The center core and the outer circumferential core are connected with each other via a second magnetoresistive member on the other axial end side. A permanent magnet is arranged in an axially central portion of the center core. A magnetic passage is formed of the center core, the permanent magnet, the first magnetoresistive member, the outer circumferential core, and the second magnetoresistive member. Magnetic flux generated by the primary coil is reduced through the first and second magnetoresistive members, and is reverse-biased by the permanent magnet.
摘要翻译：点火线圈由中心芯，初级线圈，次级线圈和外周芯构成。中心芯和外周芯通过第一磁阻构件在一个轴向端侧相互连接。中心芯和外周芯通过另一轴向端侧上的第二磁阻构件相互连接。永磁体布置在中心芯的轴向中心部分。磁路由中心芯，永磁体，第一磁阻构件，外周芯和第二磁阻构件形成。由初级线圈产生的磁通量通过第一和第二磁阻部件减小，并被永久磁铁反向偏置。

8. 发明授权

US06897755B2 Ignition coil for internal combustion engine 有权
标题翻译：内燃机点火线圈
公开(公告)号：US06897755B2
公开(公告)日：2005-05-24
申请号：US10720170
申请日：2003-11-25
申请人： Jyunichi Wada , Koji Tsunenaga , Kazutoyo Osuka
发明人： Jyunichi Wada , Koji Tsunenaga , Kazutoyo Osuka
IPC分类号： H01F38/12 , H01F27/02
CPC分类号： H01F38/12 , H01F2038/122
摘要： In a stick coil, there is disclosed an ignition coil for an internal combustion engine which can prevent a crack (a collar leak) from being generated due to a thermal stress. In this ignition coil, the structure is made such that a size (L) of a portion which is in parallel to an axial direction of a primary spool (121) in a projection portion (121b) is larger than a size (T) of a portion which is in parallel to an orthogonal direction to the axial direction of the primary spool (121). Accordingly, a frontal projected area of the projection portion (121b) as seen from a flowing direction of a resin becomes small, a resin flow is hard to get out of order at a time when the resin flows through a portion corresponding to the projection portion (121b) at the forming time, and a convoluted void and a weld are hard to be generated. Accordingly, since it is possible to prevent a mechanical strength in a root portion of the projection portion (121b) from being reduced, it is possible to previously prevent a crack from being generated in the root portion of the projection portion (the collar portion) (121b) due to a thermal stress so as to reduce an insulating property.
摘要翻译：在棒状线圈中，公开了一种用于内燃机的点火线圈，其可以防止由于热应力而产生裂纹（轴环泄漏）。在该点火线圈中，该结构被制成使得与突起部分（121b）中的初级线轴（121）的轴向平行的部分的尺寸（L）大于尺寸（T）与主卷轴（121）的轴向的正交方向平行的部分。因此，从树脂的流动方向看，突出部分（121b）的正面投影面积变小，树脂流过对应于投影部分的部分时，树脂流动难以失序部分（121b），并且难以产生回旋的空隙和焊缝。因此，由于可以防止突起部（121b）的根部的机械强度减小，所以能够防止在突起部的根部产生裂纹（凸缘部）（121b）由于热应力而降低绝缘性能。

9. 发明授权

US06810868B2 Ignition coil for internal combustion engine 有权
标题翻译：内燃机点火线圈
公开(公告)号：US06810868B2
公开(公告)日：2004-11-02
申请号：US10356544
申请日：2003-02-03
申请人： Koji Tsunenaga , Kazutoyo Osuka , Jyunichi Wada
发明人： Koji Tsunenaga , Kazutoyo Osuka , Jyunichi Wada
IPC分类号： F02P3055
CPC分类号： H01T13/44 , H01F27/022 , H01F38/12 , H01F2038/122
摘要： An ignition coil has an outer coil unit, an inner coil unit, a coil case in which the outer and inner coil units are housed and a tower case accommodating lower parts of outer and inner spools. The outer spool is made of resin material whose bonding strength to resin insulating material, with which the tower case is filled, is weak. An axial leading end of the outer spool is positioned axially away from a reference position by a distance equal to or shorter than 60% of a reference length or by a distance equal to or longer than 90% of the reference length. With this ignition coil, cracks are suppressed on the resin insulating material opposed to the axial leading end of the outer spool otherwise caused by thermal stress.
摘要翻译：点火线圈具有外线圈单元，内线圈单元，容纳外线圈单元和内线圈单元的线圈壳体和容纳外线圈和内线圈的下部的塔架壳体。外部卷轴由树脂材料制成，其与塔壳填充的树脂绝缘材料的结合强度较弱。外卷轴的轴向前端远离基准位置轴向远离参考长度的60％或等于或大于参考长度的90％的距离。利用该点火线圈，与由外部线轴的轴向前端相反的树脂绝缘材料，由于热应力引起的裂纹受到抑制。

10. 发明申请

US20070175461A1 Multiple-spark ignition system for internal combustion engine 有权
标题翻译：内燃机多火花点火系统
公开(公告)号：US20070175461A1
公开(公告)日：2007-08-02
申请号：US11699078
申请日：2007-01-29
申请人： Jyunichi Wada , Toru Yoshinaga
发明人： Jyunichi Wada , Toru Yoshinaga
IPC分类号： F02P15/08 , F02P3/05 , F02P3/04
CPC分类号： F02P15/08 , F02P3/051 , F02P5/1502 , F02P9/007 , Y02T10/46
摘要： An ignition system for an internal combustion engine includes an ignition coil, electric power supply circuit, a switching transistor, engine condition detecting element or unit that detects a signal relating to flow speed of air-fuel-mixture gas in the engine, and ignition control unit that controls the switching transistor to provide multiple ignition sparks in a predetermined ignition period. The ignition control unit controls the switching transistor to maintain each of the ignition sparks according to the signal relating to the flow speed of air-fuel-mixture gas in the engine to maintain sufficient spark energy for igniting the air-fuel mixture gas.
摘要翻译：一种用于内燃机的点火系统包括点火线圈，电力供应电路，开关晶体管，发动机状态检测元件或检测与发动机中的空气 - 燃料混合气体的流速相关的信号的单元，以及点火控制单元，其控制开关晶体管以在预定的点火周期内提供多个点火火花。点火控制单元控制开关晶体管，以根据与发动机中空气 - 燃料混合气体的流速相关的信号来维持每个点火火花，以保持足够的火花能量来点燃空气 - 燃料混合气体。

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