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公开(公告)号：US08844490B2
公开(公告)日：2014-09-30
申请号：US13350456
申请日：2012-01-13
摘要： A corona igniter 20 includes an insulator 28 surrounding a central electrode 24 and a shell 30 surrounding the insulator 28. The shell 30 presents a shell gap 38 having a shell gap width ws between a shell lower end 34 and a shell inner surface 90 or shell outer surface 92. The shell 30 has a shell thickness ts decreasing toward the shell lower end 34 allowing the shell gap width ws to increase toward the shell lower end 34. The shell gap 38 is open at the shell lower end 34 allowing air to flow therein, and the shell gap width ws is greatest at the shell lower end 34. The increasing shell gap width ws enhances corona discharge 22 along the insulator 28 between the central electrode 24 and shell 30.
摘要翻译： 电晕点火器20包括围绕中心电极24的绝缘体28和围绕绝缘体28的外壳30.外壳30具有外壳间隙38，外壳间隙38在外壳下端34与外壳内表面90或外壳之间具有外壳间隙宽度ws 外壳表面92.外壳30具有朝壳体下端34减小的外壳厚度ts，允许外壳间隙宽度ws朝壳体下端34增加。外壳间隙38在外壳下端34处开放，允许空气流动 壳壳宽度ws在外壳下端34处最大。外壳间隙宽度ws增加沿中心电极24和外壳30之间的绝缘体28的电晕放电22。
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2.发明申请公开(公告)号：US20120279468A1
公开(公告)日：2012-11-08
申请号：US13350456
申请日：2012-01-13
摘要： A corona igniter 20 includes an insulator 28 surrounding a central electrode 24 and a shell 30 surrounding the insulator 28. The shell 30 presents a shell gap 38 having a shell gap width ws between a shell lower end 34 and a shell inner surface 90 or shell outer surface 92. The shell 30 has a shell thickness is decreasing toward the shell lower end 34 allowing the shell gap width ws to increase toward the shell lower end 34. The shell gap 38 is open at the shell lower end 34 allowing air to flow therein, and the shell gap width ws is greatest at the shell lower end 34. The increasing shell gap width ws enhances corona discharge 22 along the insulator 28 between the central electrode 24 and shell 30.
摘要翻译： 电晕点火器20包括围绕中心电极24的绝缘体28和围绕绝缘体28的外壳30.外壳30具有外壳间隙38，外壳间隙38在外壳下端34与外壳内表面90或外壳之间具有外壳间隙宽度ws 外壳表面92.外壳30的外壳厚度朝壳体下端34减小，允许外壳间隙宽度ws朝壳体下端34增加。外壳间隙38在外壳下端34处开放，允许空气流动 壳壳宽度ws在外壳下端34处最大。外壳间隙宽度ws增加沿中心电极24和外壳30之间的绝缘体28的电晕放电22。
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公开(公告)号：US20120210968A1
公开(公告)日：2012-08-23
申请号：US13325433
申请日：2011-12-14
CPC分类号： H01T21/02 , H01T13/50 , Y10T29/4902
摘要： A corona igniter 20 includes an electrode gap 28 between the central electrode 22 and the insulator 32 and a shell gap 30 between the insulator 32 and the shell 36. The gaps 28, 30 are filled with a filler material 40 to prevent corona discharge 24 in the gaps 28, 30 and to concentrate the energy at a firing tip 58 of the central electrode 22. The filler material 40 may be electrically insulating or conductive. The shell gap width ws may be greatest at a shell lower end 92. The shell gap 30 may also be in a turnover region between a shell upper end 44 and the insulator 32, in which case the filler material 40 is injection molded around the turnover region. During operation of the igniter 20, the filler material 40 provides a reduced voltage drop across the gap 28, 30.
摘要翻译： 电晕点火器20包括在中心电极22和绝缘体32之间的电极间隙28和绝缘体32与壳体36之间的壳隙30.间隙28,30填充有填充材料40以防止电晕放电24 间隙28,30，并将能量集中在中心电极22的点火尖端58.填充材料40可以是电绝缘的或导电的。 外壳间隙宽度ws可以在外壳下端92处最大。外壳间隙30也可以在外壳上端44和绝缘体32之间的翻转区域中，在这种情况下，填充材料40围绕周转 地区。 在点火器20的操作期间，填充材料40在间隙28,30上提供降低的电压降。
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公开(公告)号：US09041273B2
公开(公告)日：2015-05-26
申请号：US13325362
申请日：2011-12-14
CPC分类号： H01T13/50
摘要： A corona igniter (20) for emitting a radio frequency electric field and providing a corona discharge (24) includes a central electrode (22) at a positive voltage, a grounded metal shell (30), and an insulator (28) with an abruption (34) extending radially outward relative to the central electrode (22). The abruption (34) is typically an increase of at least 15% of a local thickness (t) of the insulator (28) over less than 25% of a nose length (el) of an insulator nose region (74). The abruption (34) is typically one flank (82) of a protrusion or a notch, and the flank (82) faces the shell (30). The abruption (34) reverses the electric field and voltage potential gradient along the insulator outer surface (32), repels charged ions away from the insulator (28), and thus prevents the formation of a conductive path between the central electrode (22) and the shell (22).
摘要翻译： 一种用于发射射频电场并提供电晕放电（24）的电晕点火器（20）包括正电压的中心电极（22），接地的金属壳（30）和具有剥离的绝缘体（28） （34）相对于中心电极（22）径向向外延伸。 在绝缘体鼻部区域（74）的鼻长度（el）小于25％时，该剥离（34）通常是绝缘体（28）的局部厚度（t）的至少15％的增加。 突起（34）通常是突起或凹口的一个侧面（82），并且侧面（82）面向壳体（30）。 剥离（34）沿着绝缘体外表面（32）反转电场和电压梯度，将带电离子排斥离开绝缘体（28），从而防止在中心电极（22）和 外壳（22）。
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公开(公告)号：US08638540B2
公开(公告)日：2014-01-28
申请号：US13326897
申请日：2011-12-15
IPC分类号： F23Q3/00
CPC分类号： H01T13/50 , F02P23/04 , H01F27/321 , H01F27/327 , H01F38/12 , H01F2038/122 , H01F2038/125 , H01T21/02
摘要： A corona igniter (20) includes an ignition coil (26) providing a high voltage energy to an electrode. The coil (26) is disposed in a housing (34) and electrically isolated by a coil filler (36) and a capacitance reducing component (38) which together improve energy efficiency of the system. The coil filler (36) includes an insulating resin permeating the coil (26). The capacitance reducing component (38) has a permittivity not greater than 6, for example ambient air, pressurized gas, insulating oil, or a low permittivity solid. The capacitance reducing compound (38) surrounds the coil (26) and other components and fills the remaining housing volume. The coil filler (36) has a filler volume and the capacitance reducing component (38) has a component volume greater than the filler volume.
摘要翻译： 电晕点火器（20）包括向电极提供高电压能量的点火线圈（26）。 线圈（26）设置在壳体（34）中并且通过线圈填料（36）和电容减小部件（38）电隔离，这一起提高了系统的能量效率。 线圈填料（36）包括渗透线圈（26）的绝缘树脂。 电容减小部件（38）的介电常数不大于6，例如环境空气，加压气体，绝缘油或低介电常数固体。 电容减小化合物（38）围绕线圈（26）和其它部件并填充剩余的容积。 线圈填料（36）具有填料体积，并且电容减小组分（38）具有大于填料体积的组分体积。
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6.发明申请MULTI-EVENT CORONA DISCHARGE IGNITION ASSEMBLY AND METHOD OF CONTROL AND OPERATION 审中-公开多事件放电点火组件及其控制和运行方法公开(公告)号：US20120145136A1
公开(公告)日：2012-06-14
申请号：US13325375
申请日：2011-12-14
CPC分类号： F02P23/045 , F02P3/01 , F02P9/007 , F02P15/08
摘要： A corona discharge ignition system 20 includes an igniter 22 for receiving pulses of electrical energy each having a radio frequency. The igniter 22 emits pulses of electrical field ionizing a fuel-air mixture and providing pulses of corona discharge 24, rather than a continuous, un-pulsed corona discharge over the same period of time. The system 20 includes at least one power supply 48, 50 providing the electrical energy to a corona drive circuit 52 and ultimately to the igniter 22. The system 20 can include a variable high voltage power supply 50 and a local charge storage device 70 for providing pulses of the electrical energy to the corona drive circuit 52. The system 20 provides a robust ignition comparable to a single event corona discharge ignition system, with improved resistance to arc formation, while using a fraction of the energy.
摘要翻译： 电晕放电点火系统20包括用于接收具有射频的电能的脉冲的点火器22。 点火器22发射电场脉冲电离燃料 - 空气混合物并提供电晕放电脉冲24，而不是在同一时间段内连续的非脉冲电晕放电。 系统20包括至少一个电源48,50，其将电能提供给电晕驱动电路52并最终提供给点火器22.系统20可包括可变高压电源50和本地电荷存储装置70，用于提供 电能的脉冲到电晕驱动电路52.系统20提供与单个事件电晕放电点火系统相当的强大点火，同时使用一部分能量，具有改进的电弧形成阻力。
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公开(公告)号：US20130049566A1
公开(公告)日：2013-02-28
申请号：US13589617
申请日：2012-08-20
IPC分类号： H01T13/39
CPC分类号： H01T13/50 , F02P23/04 , H01T13/16 , H01T13/467 , H01T21/02
摘要： A corona igniter 20 with improved temperature control at the firing end is provided. The corona igniter 20 comprises a central electrode 24 include a core material 30, such as copper, surrounded by a clad material 32, such as nickel. The core material 30 extends longitudinally between an electrode terminal end 34 and an electrode firing end 36. The core material 30 is disposed at the electrode terminal end 34 and has a core length Ic equal to at least 90% of an electrode length Ie of the central electrode 24. At least 97% of the core length Ic is surrounded by an insulator 26. The electrode diameter is increased, such that a clad thickness tcl of the central electrode 24 is equal to at least 5% of an insulator thickness ti, and a core diameter Dc is equal to at least 30% of the insulator thickness ti.
摘要翻译： 提供了在点火端具有改进的温度控制的电晕点火器20。 电晕点火器20包括中心电极24，中心电极24包括由包覆材料32（例如镍）围绕的诸如铜的芯材料30。 芯材30在电极末端34和电极点火端36之间纵向延伸。芯材30设置在电极终端34处，并具有等于至少90％电极长度Ie的芯长度Ic 中心电极24.核心长度Ic的至少97％被绝缘体26包围。电极直径增加，使得中心电极24的包层厚度tcl等于绝缘体厚度ti的至少5％ 并且芯直径Dc等于绝缘体厚度ti的至少30％。
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8.发明申请公开(公告)号：US20120176724A1
公开(公告)日：2012-07-12
申请号：US13326897
申请日：2011-12-15
CPC分类号： H01T13/50 , F02P23/04 , H01F27/321 , H01F27/327 , H01F38/12 , H01F2038/122 , H01F2038/125 , H01T21/02
摘要： A corona igniter (20) includes an ignition coil (26) providing a high voltage energy to an electrode. The coil (26) is disposed in a housing (34) and electrically isolated by a coil filler (36) and a capacitance reducing component (38) which together improve energy efficiency of the system. The coil filler (36) includes an insulating resin permeating the coil (26). The capacitance reducing component (38) has a permittivity not greater than 6, for example ambient air, pressurized gas, insulating oil, or a low permittivity solid. The capacitance reducing compound (38) surrounds the coil (26) and other components and fills the remaining housing volume. The coil filler (36) has a filler volume and the capacitance reducing component (38) has a component volume greater than the filler volume.
摘要翻译： 电晕点火器（20）包括向电极提供高电压能量的点火线圈（26）。 线圈（26）设置在壳体（34）中并且通过线圈填料（36）和电容减小部件（38）电隔离，这一起提高了系统的能量效率。 线圈填料（36）包括渗透线圈（26）的绝缘树脂。 电容减小部件（38）的介电常数不大于6，例如环境空气，加压气体，绝缘油或低介电常数固体。 电容减小化合物（38）围绕线圈（26）和其它部件并填充剩余的容积。 线圈填料（36）具有填料体积，并且电容减小组分（38）具有大于填料体积的组分体积。
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公开(公告)号：US09103313B2
公开(公告)日：2015-08-11
申请号：US13324069
申请日：2011-12-13
CPC分类号： F02P9/007 , F02P23/045 , H01T13/467 , H01T13/50 , H01T21/02 , Y10T29/49231
摘要： A corona ignition system for providing a corona discharge (24) includes an igniter (20) having an electrode (26) with an asymmetrical firing tip (28) relative to an electrode center axis (ae). The firing tip (28) includes a first surface area (A1) facing the fuel injector (42) which is greater than a second surface area (A2) facing a cylinder block (32). The first surface area (A1) presents a projection (60) having a sharp edge, and the second surface area (A2) presents a round outward surface (62). Accordingly, a radio frequency electric field emitted from the first surface area (A1) provides a robust corona discharge (24) in a flammable area at an outside edge (30) of the fuel spray. No electric field is emitted from the second surface area (A2), and no power arcing occurs between the second surface area (A2) and the cylinder block (32).
摘要翻译： 用于提供电晕放电（24）的电晕点火系统包括具有相对于电极中心轴线（ae）具有不对称点火尖端（28）的电极（26）的点火器（20）。 击发尖端（28）包括面向燃料喷射器（42）的第一表面区域（A1），其大于面向气缸体（32）的第二表面区域（A2）。 第一表面区域（A1）具有尖锐边缘的突起（60），第二表面区域（A2）呈圆形的外表面（62）。 因此，从第一表面区域（A1）发射的射频电场在燃料喷雾的外边缘（30）处的易燃区域中提供坚固的电晕放电（24）。 没有电场从第二表面区域（A2）发射，并且在第二表面区域（A2）和气缸体（32）之间不产生电弧。
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公开(公告)号：US08839753B2
公开(公告)日：2014-09-23
申请号：US13339737
申请日：2011-12-29
CPC分类号： H01T13/50 , H01T21/02 , Y10T29/49117
摘要： A corona igniter 20 includes an electrode gap 28 between the central electrode 22 and the insulator 32 and a shell gap 30 between the insulator 32 and the shell 36. An electrically conductive coating 40 is disposed on the insulator 32 along the gaps 28, 30 to prevent corona discharge 24 in the gaps 28, 30 and to concentrate the energy at a firing tip 58 of the central electrode 22. The electrically conductive coating 40 is disposed on an insulator inner surface 64 and is spaced radially from the electrode 22. The electrically conductive coating 40 is also disposed on the insulator outer surface 72 and is spaced radially from the shell 36. During operation of the igniter 20, the electrically conductive coating 40 provides a reduced voltage drop across the gaps 28, 30 and a reduced electric field spike at the gaps 28, 30.
摘要翻译： 电晕点火器20包括在中心电极22和绝缘体32之间的电极间隙28和绝缘体32与壳体36之间的壳隙30.导电涂层40沿间隙28,30设置在绝缘体32上 在间隙28,30中防止电晕放电24，并将能量集中在中心电极22的点火尖端58.导电涂层40设置在绝缘体内表面64上并与电极22径向间隔开。电 导电涂层40也设置在绝缘体外表面72上并且与壳体36径向间隔开。在点火器20的操作期间，导电涂层40在间隙28,30处提供降低的电压降，并且减小电场尖峰 在间隙28,30处。
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