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21. 发明授权

US07703428B2 Spark plug and internal combustion engine in which the spark plug is disposed 有权
标题翻译：配有火花塞的火花塞和内燃机
公开(公告)号：US07703428B2
公开(公告)日：2010-04-27
申请号：US12207616
申请日：2008-09-10
申请人： Katsutoshi Nakayama , Hiroyuki Kameda
发明人： Katsutoshi Nakayama , Hiroyuki Kameda
IPC分类号： H01T13/02 , H01T13/00 , H01T13/20
CPC分类号： H01T13/16 , H01T21/02
摘要： To provide a spark plug with improved heat resistance and an internal combustion engine in which that spark plug is mounted where there is good conduction of the heat near the opening on the combustion chamber side of the mounting hole for the spark plug provided in the engine and the effects of thermal stress occurring near that opening are mitigated. A cylindrical part without threads formed thereon is provided on the leading end side of a metal housing of a spark plug and the thermal stress applied to a mounting hole is mitigated by avoiding close contact with the mounting hole of an engine head. Furthermore, the spark plug has a mounting structure in which the leading end surface of the cylindrical part is disposed 1.55 mm or more to the base end side in a mounting hole in the direction of the axial line O with respect to the wall surface inside the combustion chamber. By this means, the metal housing does not easily take up the heat that accompanies combustion of the air-fuel mixture inside the combustion chamber at the cylindrical, part so there may be good heat conduction.
摘要翻译：提供具有改善的耐热性的火花塞和内燃机，其中该火花塞安装在设置在发动机内的用于火花塞的安装孔的燃烧室侧的开口附近有良好的热传导，在该开口附近发生的热应力的影响得到缓解。在火花塞的金属壳体的前端侧设置有没有螺纹的圆筒形部件，并且通过避免与发动机头部的安装孔的紧密接触来减轻施加于安装孔的热应力。此外，火花塞具有安装结构，其中，圆柱形部分的前端表面相对于轴线O的方向上的壁表面在轴线O的方向上的安装孔中的基端侧布置1.55mm以上燃烧室。通过这种方式，金属外壳不容易吸收燃烧室内的空气燃料混合物在圆柱形部分燃烧的热量，所以可能有良好的热传导。

22. 发明申请

US20090140624A1 SPARK PLUG INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING THE SPARK PLUG 有权
标题翻译：火花塞内燃机和生产火花塞的方法
公开(公告)号：US20090140624A1
公开(公告)日：2009-06-04
申请号：US12274828
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/08 , H01T21/02
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a center electrode; a substantially cylindrical insulator; a cylindrical metal shell; a ground electrode having a base end joined to a leading end portion of the metal shell and a distal end bent toward the axis line. The ground electrode includes: a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion. A noble metal tip is joined to and partially embedded in the inner peripheral surface of the thin portion and disposed to form a gap between the noble metal tip and the leading end portion of the center electrode.
摘要翻译：一种火花塞，包括：中心电极; 一个基本上圆柱形的绝缘体; 圆柱形金属外壳; 接地电极，其具有接合到所述金属壳的前端部的基端和朝向所述轴线弯曲的远端。接地电极包括：设置在基端侧的厚壁部，设置在前端侧的薄壁部和设置在厚壁部与薄壁部之间的内周面的台阶部。贵金属端头接合并部分地嵌入薄壁的内周面，并且设置成在贵金属端头和中心电极的前端部之间形成间隙。

23. 发明申请

US20090134764A1 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING THE SPARK PLUG 有权
标题翻译：用于内燃机的火花塞和用于生产火花塞的方法
公开(公告)号：US20090134764A1
公开(公告)日：2009-05-28
申请号：US12274423
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a ground electrode including a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion; a noble metal tip partially embedded in an inner peripheral surface of the thin portion; and a bulge portion provided on the inner peripheral surface of the thin portion between the stepped portion and the noble metal tip. When viewed from a side surface of the ground electrode, a relationship [a protruding height of the noble metal tip from the inner peripheral surface of the thin portion]≧[a protruding height of the bulge portion from the inner peripheral surface of the thin portion].
摘要翻译：一种火花塞，包括：接地电极，其包括设置在基端侧的厚部，设置在前端侧的薄部，以及设置在所述厚部与所述薄部之间的内周面的台阶部; 部分地嵌入所述薄部的内周面的贵金属电极头; 以及设置在阶梯部和贵金属端之间的薄壁部的内周面的凸部。当从接地电极的侧面观察时，贵金属电极头从薄壁部的内周面的突出高度的关系为=凸出部从薄壁的内周面的突出高度一部分]。

24. 发明授权

US09316199B2 Ignition device and structure for mounting same 有权
标题翻译：点火装置及其安装结构
公开(公告)号：US09316199B2
公开(公告)日：2016-04-19
申请号：US13881339
申请日：2011-08-30
申请人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
发明人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
IPC分类号： F02P15/00 , F02P1/08 , F02P3/04 , F02P3/00 , F02P13/00 , H01F38/12 , H01T13/04 , H01T13/20 , F02P9/00 , F02P3/05 , F02P3/09
CPC分类号： F02P15/00 , F02P1/08 , F02P1/083 , F02P1/086 , F02P3/00 , F02P3/0435 , F02P3/051 , F02P3/09 , F02P9/002 , F02P13/00 , H01F38/12 , H01T13/04 , H01T13/20
摘要： An ignition device (100) includes a power supply (2) for discharge; an AC power supply (3); an ignition coil (41) for generating a secondary voltage in a secondary coil (41B); an ignition plug (1) connected to the secondary coil (41B); an AC electrode (43) electrically connected to the AC power supply (3); a high-voltage electrode (42) located between the secondary coil (41B) and the ignition plug (1); an insulator (44) located between the two electrodes (42, 43); and a second insulator (47) which covers the ignition coil (41) and a capacitor (49) composed of the two electrodes (42, 43) and an insulator (44). The secondary voltage and AC power are supplied to the ignition plug (1) via the high-voltage electrode (42). Thus, excellent ignition performance can be implemented while the occurrence of misfire is restrained.
摘要翻译：点火装置（100）包括用于放电的电源（2）交流电源（3）; 用于在次级线圈（41B）中产生次级电压的点火线圈（41）; 连接到次级线圈（41B）的火花塞（1）; 电连接到AC电源（3）的AC电极（43）; 位于次级线圈（41B）和火花塞（1）之间的高压电极（42）; 位于两个电极（42,43）之间的绝缘体（44）; 以及覆盖所述点火线圈（41）的第二绝缘体（47）和由所述两个电极（42,43）和绝缘体（44）构成的电容器（49）。次级电压和AC电力通过高压电极（42）提供给火花塞（1）。因此，可以在抑制失火的发生的同时实现优异的点火性能。

25. 发明授权

US09169820B2 Ignition system 有权
标题翻译：点火系统
公开(公告)号：US09169820B2
公开(公告)日：2015-10-27
申请号：US13444092
申请日：2012-04-11
申请人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
发明人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
IPC分类号： F02P3/02 , F02P9/00 , F02P15/10 , F02P3/04 , F02P23/04 , H01T13/04 , H01T13/06
CPC分类号： F02P9/007 , F02P3/01 , F02P3/02 , F02P3/04 , F02P7/03 , F02P15/10 , F02P23/04 , H01T13/04 , H01T13/06 , H01T13/44
摘要： An ignition system wherein creation of misfires is suppressed and excellent ignition ability is realized. The ignition system includes a spark plug; a discharge power source applying a voltage in order to generate a spark discharge at the spark plug; an AC power source supplying AC power to a spark generated by the spark discharge; and an ignition cable electrically connecting the spark plug, the discharge power source and the AC power source. The ignition cable includes a discharge electrode connecting the discharge power source and the spark plug, an AC electrode transmitting AC power from the AC power source to the spark plug, and an insulator interposed between the discharge and AC electrodes.
摘要翻译：一种点火系统，其中产生的失火被抑制并具有优异的点燃能力。点火系统包括火花塞; 施加电压以在火花塞产生火花放电的放电电源; 交流电源，为火花放电产生的火花提供交流电; 以及将火花塞，放电电源和AC电源电连接的点火电缆。点火电缆包括连接放电电源和火花塞的放电电极，从交流电源向火花塞传送交流电力的交流电极以及插在放电与交流电极之间的绝缘体。

26. 发明授权

US09035562B2 Ignition plug and ignition apparatus 有权
标题翻译：点火塞和点火装置
公开(公告)号：US09035562B2
公开(公告)日：2015-05-19
申请号：US13565937
申请日：2012-08-03
申请人： Kohei Katsuraya , Tatsunori Yamada , Katsutoshi Nakayama
发明人： Kohei Katsuraya , Tatsunori Yamada , Katsutoshi Nakayama
IPC分类号： H05B41/00 , H01T13/20 , H01T13/34
CPC分类号： H01T13/34 , H01T13/20
摘要： A technique for lowering power loss involved in supply of high-frequency electric power to an ignition plug. The ignition plug includes a tubular insulator having an axial bore extending therethrough; a center electrode disposed in the axial bore; a metal terminal disposed rearward of the center electrode in the axial bore, electrically connected to the center electrode, and supplied with high-frequency electric power from an external source; a metallic shell disposed to circumferentially surround the insulator; and a ground electrode electrically connected to the metallic shell and adapted to generate plasma in cooperation with the center electrode through supply of high-frequency electric power to the metal terminal. At least a portion of the inner surface of the axial bore is coated with metal coating. The center electrode and the metal terminal are in electrical contact with the metal coating.
摘要翻译：一种用于降低向火花塞供应高频电力的功率损耗的技术。火花塞包括具有延伸穿过其中的轴向孔的管状绝缘体; 设置在所述轴向孔中的中心电极; 金属端子，其设置在所述轴向孔中的所述中心电极的后方，与所述中心电极电连接，并从外部源供给高频电力; 设置成周向包围绝缘体的金属壳; 以及电连接到所述金属壳并且适于通过向所述金属端子提供高频电力而与所述中心电极协作产生等离子体的接地电极。轴向孔的内表面的至少一部分涂覆有金属涂层。中心电极和金属端子与金属涂层电接触。

27. 发明申请

US20130233291A1 IGNITION DEVICE AND STRUCTURE FOR MOUNTING SAME 有权
标题翻译：点火装置和安装结构
公开(公告)号：US20130233291A1
公开(公告)日：2013-09-12
申请号：US13881339
申请日：2011-08-30
申请人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
发明人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
IPC分类号： F02P15/00
CPC分类号： F02P15/00 , F02P1/08 , F02P1/083 , F02P1/086 , F02P3/00 , F02P3/0435 , F02P3/051 , F02P3/09 , F02P9/002 , F02P13/00 , H01F38/12 , H01T13/04 , H01T13/20
摘要： An ignition device (100) includes a power supply (2) for discharge; an AC power supply (3); an ignition coil (41) for generating a secondary voltage in a secondary coil (41B); an ignition plug (1) connected to the secondary coil (41B); an AC electrode (43) electrically connected to the AC power supply (3); a high-voltage electrode (42) located between the secondary coil (41B) and the ignition plug (1); an insulator (44) located between the two electrodes (42, 43); and a second insulator (47) which covers the ignition coil (41) and a capacitor (49) composed of the two electrodes (42, 43) and an insulator (44). The secondary voltage and AC power are supplied to the ignition plug (1) via the high-voltage electrode (42). Thus, excellent ignition performance can be implemented while the occurrence of misfire is restrained.
摘要翻译：点火装置（100）包括用于放电的电源（2）交流电源（3）; 用于在次级线圈（41B）中产生次级电压的点火线圈（41）; 连接到次级线圈（41B）的火花塞（1）; 电连接到AC电源（3）的AC电极（43）; 位于次级线圈（41B）和火花塞（1）之间的高压电极（42）; 位于两个电极（42,43）之间的绝缘体（44）; 以及覆盖所述点火线圈（41）的第二绝缘体（47）和由所述两个电极（42,43）和绝缘体（44）构成的电容器（49）。次级电压和AC电力经由高压电极（42）提供给火花塞（1）。因此，可以在抑制失火的发生的同时实现优异的点火性能。

28. 发明申请

US20130148254A1 IGNITION SYSTEM AND SPARK PLUG 有权
标题翻译：点火系统和火花塞
公开(公告)号：US20130148254A1
公开(公告)日：2013-06-13
申请号：US13817544
申请日：2011-07-11
申请人： Kohei Katsuraya , Katsutoshi Nakayama
发明人： Kohei Katsuraya , Katsutoshi Nakayama
IPC分类号： F02P3/01
CPC分类号： F02P3/01 , F02P9/007 , H01T13/40 , H01T13/50
摘要： An ignition system having a spark plug, a discharge power supply, and an AC power supply. Voltage from the discharge power supply and AC power from the AC power supply are supplied to a spark discharge gap through an electrode of the spark plug. The AC power from the AC power supply is applied to a spark generated by the voltage from the discharge power supply in the spark discharge gap.
摘要翻译：具有火花塞，放电电源和交流电源的点火系统。来自放电电源的电压和来自交流电源的交流电力通过火花塞的电极供给到火花放电间隙。来自交流电源的交流电源被施加到由放电电源在火花放电间隙中的电压产生的火花。

29. 发明申请

US20120260899A1 IGNITION SYSTEM 有权
标题翻译：点火系统
公开(公告)号：US20120260899A1
公开(公告)日：2012-10-18
申请号：US13444092
申请日：2012-04-11
申请人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
发明人： Tatsunori Yamada , Kohei Katsuraya , Katsutoshi Nakayama
IPC分类号： F02P3/01
CPC分类号： F02P9/007 , F02P3/01 , F02P3/02 , F02P3/04 , F02P7/03 , F02P15/10 , F02P23/04 , H01T13/04 , H01T13/06 , H01T13/44
摘要： An ignition system wherein creation of misfires is suppressed and excellent ignition ability is realized. The ignition system includes a spark plug; a discharge power source applying a voltage in order to generate a spark discharge at the spark plug; an AC power source supplying AC power to a spark generated by the spark discharge; and an ignition cable electrically connecting the spark plug, the discharge power source and the AC power source. The ignition cable includes a discharge electrode connecting the discharge power source and the spark plug, an AC electrode transmitting AC power from the AC power source to the spark plug, and an insulator interposed between the discharge and AC electrodes.
摘要翻译：一种点火系统，其中产生的失火被抑制并具有优异的点燃能力。点火系统包括火花塞; 施加电压以在火花塞产生火花放电的放电电源; 交流电源，为火花放电产生的火花提供交流电; 以及将火花塞，放电电源和AC电源电连接的点火电缆。点火电缆包括连接放电电源和火花塞的放电电极，从交流电源向火花塞传送交流电力的交流电极以及插在放电与交流电极之间的绝缘体。

30. 发明授权

US08247740B2 Spark plug, and its manufacturing method 有权
标题翻译：火花塞及其制造方法
公开(公告)号：US08247740B2
公开(公告)日：2012-08-21
申请号：US12532849
申请日：2008-03-27
申请人： Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/32
CPC分类号： H01T13/32 , H01T21/02 , Y10T29/49083
摘要： A spark plug of the present invention includes a cylindrical metal shell, a cylindrical ceramic insulator retained in the metal shell, a center electrode retained in the ceramic insulator and extending in an axial direction, and a ground electrode formed into a bent shape and having a rear end portion fixed to the metal shell and a front end portion facing a front end portion of the center electrode with a gap left therebetween. The ground electrode contains a large thickness region formed on a rear end side thereof with a large thickness, a small thickness region formed on a front end side thereof with a smaller thickness than that of the large thickness region, a protruding region formed on the small thickness region and facing the center electrode and a thickness changing region formed between the large thickness region and the small thickness region and located at a different position from a position of a minimum curvature radius region of the bent shape of the ground electrode.
摘要翻译：本发明的火花塞包括圆柱形金属壳，保持在金属壳中的圆柱形陶瓷绝缘体，保持在陶瓷绝缘体中并沿轴向延伸的中心电极和形成为弯曲形状的接地电极，并具有固定在金属壳体上的后端部分和面对中心电极的前端部分的前端部分，其间留有间隙。接地电极在其后端侧形成有大厚度的厚度区域，厚度大的区域形成在其前端侧，厚度小于大厚度区域的厚度区域，形成在小型区域上的突出区域厚度区域和面对中心电极的厚度变化区域和形成在大厚度区域和小厚度区域之间并且位于与接地电极的弯曲形状的最小曲率半径区域的位置不同的位置的厚度变化区域。

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