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公开(公告)号：US09991681B2
公开(公告)日：2018-06-05
申请号：US14568330
申请日：2014-12-12
发明人： John Antony Burrows
IPC分类号： H01T19/00 , H01T15/00 , F02P23/04 , G01M15/02 , G01N27/02 , H02M3/00 , F02P3/04 , F02P5/15 , F02P17/00
CPC分类号： H01T19/00 , F02N2300/2011 , F02P3/0407 , F02P5/1502 , F02P17/00 , F02P23/04 , G01M15/02 , G01N27/02 , H01T15/00 , H02M3/00
摘要： A corona ignition system for maintaining a drive frequency approximately equal to the resonant frequency of a corona igniter is provided. The system includes a current sensor, at least two cascaded timers which are electrically independent of a controller, and at least two switches. During operation, the current sensor measures the current at an input of the corona igniter. A conditioned current signal including information related to the zero crossings of the current ultimately activates a pair of the timers which in turn control and drive one of the switches. The conditioned current signal is not processed by the controller before driving the switch.
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公开(公告)号：US09653885B2
公开(公告)日：2017-05-16
申请号：US14215375
申请日：2014-03-17
IPC分类号： H01T13/06 , H01T19/00 , H01T19/04 , H01T21/02 , H01T13/44 , H01T13/50 , H01T13/04 , H01T13/08
CPC分类号： H01T13/06 , F02P23/04 , H01T13/04 , H01T13/08 , H01T13/44 , H01T13/50 , H01T19/00 , H01T19/04 , H01T21/02 , Y10T29/49002
摘要： A corona igniter assembly 20 comprises an ignition coil assembly 22, a firing end assembly 24, and a metal tube 26 connecting the ignition coil assembly 22 to the firing end assembly 24. A rubber boot 28 is disposed in the metal tube 26 and compressed symmetrically between a coil output member 30 of the ignition coil assembly 22 and an insulator 42 of the firing end assembly 24. Thus, the rubber boot 28 fills any air gaps and provides a hermetic seal between the ignition coil assembly 22 and the firing end assembly 24 to prevent unwanted corona discharge from forming from those air gaps.
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公开(公告)号：US20170093135A1
公开(公告)日：2017-03-30
申请号：US15271874
申请日：2016-09-21
发明人： Kristapher MIXELL , Paul PHILLIPS
摘要： A corona igniter assembly including an ignition coil assembly, a firing end assembly, and a dielectric compliant member is provided. The dielectric compliant member is compressed between a high voltage insulator of the ignition coil assembly and a ceramic insulator of the firing end assembly. During assembly of the corona igniter assembly, the dielectric compliant member pushes air outwards and forms a hermetic seal between the high voltage insulator and the ceramic insulation. The dielectric compliant member can have a rounded upper surface, which may improve the hermetic seal. Alternatively, or in addition to the rounded surface on the dielectric compliant member, the lower surface of the high voltage insulator can be rounded to push air outwards during assembly and provide a hermetic seal.
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公开(公告)号：US09407069B2
公开(公告)日：2016-08-02
申请号：US14822159
申请日：2015-08-10
摘要： An electrically conductive glass seal for providing a hermetic bond between an electrically conductive component and an insulator of a spark plug is provided. The glass seal is formed by mixing glass frits, binder, expansion agent, and electrically conductive metal particles. The glass frits can include silica (SiO2), boron oxide (B2O3), aluminum oxide (Al2O3), bismuth oxide (Bi2O3), and zinc oxide (ZnO); the binder can include sodium bentonite or magnesium aluminum silicate, polyethylene glycol (PEG), and dextrin; the expansion agent can include lithium carbonate; and the electrically conductive particles can include copper. The finished glass seal includes the glass in a total amount of 50.0 to 85.0 weight (wt. %), and electrically conductive metal particles in an amount of 15.0 to 50.0 wt. %, based on the total weight of the glass seal.
摘要翻译： 提供一种用于在导电部件和火花塞的绝缘体之间提供气密接合的导电玻璃密封件。 玻璃密封通过混合玻璃料，粘合剂，膨胀剂和导电金属颗粒而形成。 玻璃料可以包括二氧化硅（SiO 2），氧化硼（B 2 O 3），氧化铝（Al 2 O 3），氧化铋（Bi 2 O 3）和氧化锌（ZnO）。 粘合剂可以包括钠膨润土或硅酸镁铝，聚乙二醇（PEG）和糊精; 膨胀剂可以包括碳酸锂; 并且导电颗粒可以包括铜。 成品玻璃密封件包括总量为50.0至85.0重量（wt。％）的玻璃，并且导电金属颗粒的量为15.0至50.0wt。 ％，基于玻璃密封件的总重量。
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公开(公告)号：US20150325983A1
公开(公告)日：2015-11-12
申请号：US14709004
申请日：2015-05-11
发明人： ANDREW STAMPER , GORDON MCINTOSH , RAYMOND BAYER
摘要： An industrial spark plug (20) includes a central electrode (24) with a central base (30) formed of a nickel-based material and a central firing tip (32) formed of an iridium-based material. The central firing tip (32) has a tip thickness (tct) of 0.02 to 0.03 inches, a tip diameter (dct) of 0.1184 to 0.1776 inches, and an aspect ratio of 4.736 to 7.104. The central firing tip (32) is electron beam welded to the central base (30) to provide a robust joint therebetween. The central electron beam weld (36) includes a mixture of re-crystallized iridium-based material and re-crystallized nickel-based material extending continuously along and over the entire welding interface. The spark plug (20) also includes a ground electrode (26) with a ground firing tip (38) electron beam welded to a ground base (42).
摘要翻译： 工业火花塞（20）包括具有由镍基材料形成的中心基座（30）和由铱基材料形成的中心点火尖（32）的中心电极（24）。 中心点火头（32）的尖端厚度（tct）为0.02-0.03英寸，尖端直径（dct）为0.1184至0.1776英寸，纵横比为4.736至7.104。 中心点火头（32）是电子束焊接到中心基座（30）上以在它们之间提供牢固的接头。 中心电子束焊接（36）包括重结晶的铱基材料和在整个焊接界面上连续延伸的再结晶的镍基材料的混合物。 火花塞（20）还包括接地电极（26），其具有焊接到接地基座（42）的电子束的接地点火尖（38）。
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公开(公告)号：US20150270688A1
公开(公告)日：2015-09-24
申请号：US14709094
申请日：2015-05-11
发明人： PATRICK DURHAM
IPC分类号： H01T21/02
摘要： An igniter (20) includes an outer insulator (24) formed of an outer ceramic material hermetically sealed to a conductive core (26). The conductive core (26) is formed of a core ceramic material and a conductive component, such as an electrically conductive coating applied to the core ceramic material or metal particles or wires embedded in the core ceramic material. The conductive core (26) is typically sintered and disposed in the green outer insulator (24). The components are then sintered together such that the outer insulator (24) shrinks onto the conductive core (26) and the hermetic seal forms therebetween. The conductive core (26) fills the outer insulator (24), so that the conductive core (26) is disposed at an insulator nose end (34) of the outer insulator (24) and the electrical discharge (22) can be emitted from the conductive core (26), eliminating the need for a separate firing tip.
摘要翻译： 点火器（20）包括由与导电芯（26）气密密封的外陶瓷材料形成的外绝缘体（24）。 导电芯（26）由核心陶瓷材料和导电组分形成，例如施加到核心陶瓷材料上的导电涂层或嵌入芯体陶瓷材料中的金属颗粒或电线。 导电芯（26）通常烧结并设置在绿色外绝缘体（24）中。 然后将这些组件烧结在一起，使得外绝缘体（24）收缩到导电芯（26）上，并且其间形成气密密封。 导电芯（26）填充外绝缘体（24），使得导电芯（26）设置在外绝缘体（24）的绝缘体鼻端（34）处，并且放电（22）可以从 导电芯（26），消除了单独的点火尖端的需要。
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公开(公告)号：US09088136B2
公开(公告)日：2015-07-21
申请号：US13843336
申请日：2013-03-15
CPC分类号： F02P23/045 , H01T13/36 , H01T13/44 , H01T13/50 , H01T19/00 , H01T19/02 , H01T19/04 , H01T21/00 , H01T21/02 , Y10T29/49002 , Y10T29/49227
摘要： A corona igniter (20) comprises a central electrode (22) surrounded by an insulator (26), which is surrounded by a conductive component. The conductive component includes a shell (34) and an intermediate part (36) both formed of an electrically conductive material. The intermediate part (36) is typically attached to a lower ledge (52) of the insulator outer surface (50) prior to inserting the insulator (26) into the shell (34). The shell firing end (56) is typically aligned with the lower edge and the intermediate firing end. The conductive inner diameter (Dg) is less than an insulator outer diameter (Dio) directly below the lower ledge (52) such the insulator thickness (ti) increases toward the electrode firing end (40).
摘要翻译： 电晕点火器（20）包括被绝缘体（26）包围的中心电极（22），所述绝缘体被导电部件包围。 导电部件包括壳体（34）和由导电材料形成的中间部分（36）。 在将绝缘体（26）插入外壳（34）之前，中间部分（36）通常附接到绝缘体外表面（50）的下凸缘（52）。 壳体射击端（56）通常与下边缘和中间射出端对准。 导电内径（Dg）小于下凸缘（52）正下方的绝缘体外径（Dio），绝缘体厚度（ti）朝向电极点火端（40）增加。
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公开(公告)号：US20150171601A1
公开(公告)日：2015-06-18
申请号：US14568330
申请日：2014-12-12
发明人： JOHN ANTONY BURROWS
IPC分类号： H01T19/00
CPC分类号： H01T19/00 , F02N2300/2011 , F02P3/0407 , F02P5/1502 , F02P17/00 , F02P23/04 , G01M15/02 , G01N27/02 , H01T15/00 , H02M3/00
摘要： A corona ignition system for maintaining a drive frequency approximately equal to the resonant frequency of a corona igniter is provided. The system includes a current sensor, at least two cascaded timers which are electrically independent of a controller, and at least two switches. During operation, the current sensor measures the current at an input of the corona igniter. A conditioned current signal including information related to the zero crossings of the current ultimately activates a pair of the timers which in turn control and drive one of the switches. The conditioned current signal is not processed by the controller before driving the switch.
摘要翻译： 提供一种用于保持大致等于电晕点火器的谐振频率的驱动频率的电晕点火系统。 该系统包括电流传感器，与控制器电独立的至少两个级联定时器和至少两个开关。 在运行期间，电流传感器测量电晕点火器输入端的电流。 包括与电流过零相关的信息的经调节的电流信号最终激活一对定时器，这些定时器又控制和驱动开关之一。 驱动开关前，调节电流信号不由控制器处理。
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公开(公告)号：US09054502B1
公开(公告)日：2015-06-09
申请号：US14452802
申请日：2014-08-06
IPC分类号： C04B35/195 , H01T13/20 , H01T13/38
CPC分类号： H01T13/20 , C04B35/195 , C04B2235/3208 , C04B2235/3418 , C04B2235/3463 , C04B2235/349 , C04B2235/80 , C04B2235/9607 , H01T13/38 , H01T21/02
摘要： A ceramic insulator for surrounding an electrode of an ignition device, such as a corona igniter or spark plug, is provided. The insulator is formed of a ceramic material including alumina in an amount of 28 to 38 wt. %, silica in an amount of 57 to 67 wt. %, and calcium oxide in an amount of 3 to 7 wt. %, based on the total weight of the ceramic material. The ceramic insulator is typically formed by firing a mixture of Kaolin, calcium carbonate, and silica, wherein the calcium carbonate acts as a flux during firing. The ceramic material has a relative permittivity of about 5.5 to 6.5 and thus improves the electrical efficiency of the ignition device. The ceramic material is also capable of withstanding temperatures of 900 to 1000° C. and has excellent thermal shock resistance, making it suitable for use in internal combustion engines.
摘要翻译： 提供用于围绕点火装置的电极的陶瓷绝缘体，例如电晕点火器或火花塞。 绝缘体由包含氧化铝的陶瓷材料形成，其量为28〜38重量％。 ％，二氧化硅的量为57〜67重量％。 ％，和3〜7重量％的氧化钙。 ％，基于陶瓷材料的总重量。 通常通过焙烧高岭土，碳酸钙和二氧化硅的混合物来形成陶瓷绝缘体，其中碳酸钙在烧制过程中充当助熔剂。 陶瓷材料的相对介电常数为约5.5至6.5，因此提高了点火装置的电效率。 陶瓷材料也能耐受900〜1000℃的温度，具有优异的耐热冲击性，适用于内燃机。
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公开(公告)号：US20150102721A1
公开(公告)日：2015-04-16
申请号：US14577174
申请日：2014-12-19
摘要： A spark plug (20) for igniting a mixture of fuel and air of an internal combustion engine comprises a center electrode (22) and a ground electrode (24). At least one of the electrodes (22, 24) includes a body portion (28, 30) formed of thermally conductive material and a firing tip (32, 34) disposed on the body portion (28, 30). The firing tip (32, 34) includes a ceramic material, providing an exposed firing surface (36, 38). The ceramic material is an electrically conductive, monolithic ceramic material. The ceramic material of the firing tip (32, 34) includes at least one perovskite structure and/or at least one a spinel structure.
摘要翻译： 用于点燃内燃机的燃料和空气的混合物的火花塞（20）包括中心电极（22）和接地电极（24）。 电极（22,24）中的至少一个包括由导热材料形成的主体部分（28,30）和设置在主体部分（28,30）上的击发尖端（32,34）。 烧制尖端（32,34）包括陶瓷材料，提供暴露的烧制表面（36,38）。 陶瓷材料是导电的整体陶瓷材料。 烧制尖端（32,34）的陶瓷材料包括至少一种钙钛矿结构和/或至少一种尖晶石结构。
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