公开(公告)号：US09787064B2

公开(公告)日：2017-10-10

申请号：US14269448

申请日：2014-05-05

Applicant: Federal-Mogul Ignition Company

Inventor： Patrick Durham ,  James Lykowski

IPC: F23Q3/00 ,  H01T19/04 ,  H01T21/00 ,  H01T13/36 ,  H01T13/50 ,  H01T21/02

CPC classification number: H01T19/04 ,  H01T13/36 ,  H01T13/50 ,  H01T21/00 ,  H01T21/02 ,  Y10T29/4902

Abstract: A corona igniter (20) comprises a central electrode (22) surrounded by an insulator (24), which is surrounded by a metal shell (26). A ceramic combustion seal (30) is disposed along the gap (32) between a shell lower end shell (52) and the insulator nose region (48) to provide a hermetic seal therebetween. The ceramic combustion seal (30) is typically a bushing, cylinder, or ring formed of sintered alumina. A glass material or glass/ceramic mixture (60) typically adheres the ceramic combustion seal (30) to the shell (26) and the insulator (24). Alternatively, the ceramic combustion seal (30) is brazed to the shell (26), and the glass material or glass/ceramic mixture (60) adheres the ceramic combustion seal (30) to the insulator (24).

公开(公告)号：US09728941B2

公开(公告)日：2017-08-08

申请号：US14540861

申请日：2014-11-13

Applicant: Federal-Mogul Ignition Company

Inventor： James Lykowski ,  Keith Hampton

IPC: H01S4/00 ,  H01T21/02 ,  H01T13/06 ,  H01T13/52 ,  H01T19/00

CPC classification number: H01T21/02 ,  H01T13/06 ,  H01T13/52 ,  H01T19/00 ,  Y10T29/49002

Abstract: A corona igniter (20) includes a metal shell (32) with a corona reducing lip (38) spaced from an insulator (26) and being free of sharp edges (40) to prevent arcing (42) in a rollover region and concentrate the electrical field at an electrode firing end (48). The corona reducing lip (38) includes lip outer surfaces (88) being round, convex, concave, or curving continuously with smooth transitions (90) therebetween. The corona reducing lip (38) includes lip outer surfaces (88) presenting spherical lip radii (r1) being at least 0.004 inches. The corona igniter (20) also includes shell inner surfaces (104) and insulator outer surfaces (75) facing one another being free of sharp edges (40).

公开(公告)号：US09716371B2

公开(公告)日：2017-07-25

申请号：US14568438

申请日：2014-12-12

Applicant: Federal-Mogul Ignition Company

Inventor： John Antony Burrows

IPC: H01T23/00 ,  H01T19/00 ,  G01M15/02 ,  G01N27/02 ,  F02P23/04 ,  H01T15/00 ,  H02M3/00 ,  F02P3/04 ,  F02P5/15 ,  F02P17/00

CPC classification number: H01T19/00 ,  F02N2300/2011 ,  F02P3/0407 ,  F02P5/1502 ,  F02P17/00 ,  F02P23/04 ,  G01M15/02 ,  G01N27/02 ,  H01T15/00 ,  H02M3/00

Abstract: A corona ignition system including a corona igniter, an energy supply, and a frequency detector is provided. The energy supply provides energy to the corona igniter during corona events which are spaced from one another by idle periods, during which no energy is provided to the corona igniter. During the idle periods, the frequency detector obtains the resonant frequency of the corona igniter from at least one of an output voltage and an output current of the energy stored in the corona igniter. The resonant frequency measured during this idle period is dependent only on the corona igniter, and not any other components of the system, and thus is very accurate. The drive frequency of future corona events can then be set based on this accurately measured resonant frequency to achieve a robust corona discharge.

公开(公告)号：US09698573B2

公开(公告)日：2017-07-04

申请号：US14076840

申请日：2013-11-11

Applicant: FEDERAL-MOGUL IGNITION COMPANY

Inventor： William J. Walker, Jr.

IPC: H01T13/34 ,  H01T13/38 ,  H01T21/02

CPC classification number: H01T13/34 ,  H01T13/38 ,  H01T21/02

Abstract: A method for making an extruded insulator for a spark plug in a manner that minimizes pores, relics and/or other defects in the insulator microstructure so that the overall dielectric strength or performance of the insulator is improved. The method may be used to manufacture an extruded insulator that avoids many of the drawbacks associated with such defects, but also has a stepped internal bore for receiving a center electrode. In one embodiment, the method uses a multi-phase extrusion process to extrude a ceramic paste around an elongated arbor and form an extruded section, and then removes the arbor from the extruded section to reveal a stepped internal bore.

公开(公告)号：US09651306B2

公开(公告)日：2017-05-16

申请号：US14216094

申请日：2014-03-17

Applicant: FEDERAL-MOGUL IGNITION COMPANY

Inventor： Keith Firstenberg

IPC: F26B5/16

CPC classification number: F26B5/16

Abstract: A method for drying a seal material for use in manufacturing an ignition device, e.g., a spark plug. A free-flowing or loose seal material having a moisture content is provided and brought together with a desiccant for a time sufficient to produce a dry seal material by reducing the moisture content of the loose seal material to a desired level. Thereafter, the dry seal material and the desiccant may be separated from one another so that the dry seal material can be used to form a seal within an internal bore of a spark plug.

公开(公告)号：US09627856B2

公开(公告)日：2017-04-18

申请号：US14709004

申请日：2015-05-11

Applicant: FEDERAL-MOGUL IGNITION COMPANY

Inventor： Andrew Stamper ,  Gordon McIntosh ,  Raymond Bayer

IPC: H01T13/39 ,  H01T13/32 ,  H01T21/02

CPC classification number: H01T13/39 ,  H01T13/32 ,  H01T21/02

Abstract: 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).

公开(公告)号：US09525274B2

公开(公告)日：2016-12-20

申请号：US14307796

申请日：2014-06-18

Applicant: Federal-Mogul Ignition Company

Inventor： John Antony Burrows ,  Zdenek Svimbersky ,  Robert Emil Ratz

IPC: F02P15/00 ,  F02P7/00 ,  H01T19/00 ,  F02P7/03 ,  F02P23/04 ,  F02P15/08 ,  H01T13/44

CPC classification number: H01T19/00 ,  F02P7/03 ,  F02P15/08 ,  F02P23/04 ,  H01T13/36 ,  H01T13/44

Abstract: A corona discharge ignition system comprising a plurality of corona igniters is provided. The system includes a control and drive electronics unit for directing the energy from a power supply toward the corona igniters; and a single transformer disposed between the control and drive electronics unit and the plurality of corona igniters. A plurality of igniter switching units is connected to the control and drive electronics unit and each igniter switching unit is connected to a separate one of the corona igniters. Each igniter switching unit allows current to travel from the transformer to the one connected corona igniter when activated and prevents current from traveling from the transformer to the one connected corona igniter and from the one connected corona igniter toward the transformer when deactivated. Only one of the igniter switching units is activated at any given time during operation of the system.

Abstract translation: 提供包括多个电晕点火器的电晕放电点火系统。 该系统包括控制和驱动电子单元，用于将来自电源的能量引导到电晕点火器; 以及设置在控制和驱动电子单元与多个电晕点火器之间的单个变压器。 多个点火开关单元连接到控制和驱动电子单元，并且每个点火器切换单元连接到单独的电晕点火器。 每个点火器开关单元允许电流在变压器启动时从变压器行进到一个连接的电晕点火器，并且在停用时防止电流从变压器行进到一个连接的电晕点火器，并从一个连接的电晕点火器向变压器运行。 只有一个点火开关单元在系统运行期间的任何给定时间被激活。

公开(公告)号：US09502865B2

公开(公告)日：2016-11-22

申请号：US14709094

申请日：2015-05-11

Applicant: FEDERAL-MOGUL IGNITION COMPANY

Inventor： Patrick Durham

IPC: H01T21/02 ,  H01T13/20 ,  H01T13/52 ,  F02P23/04

CPC classification number: H01T21/02 ,  F02P23/04 ,  H01B13/06 ,  H01T13/20 ,  H01T13/52

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09466953B2

公开(公告)日：2016-10-11

申请号：US14138228

申请日：2013-12-23

Applicant: Federal-Mogul Ignition Company

Inventor： John Antony Burrows ,  John E. Miller ,  Kristapher I. Mixell ,  James D. Lykowski

IPC: F02P23/00 ,  H01T19/00 ,  F02P19/02 ,  F02P23/04

CPC classification number: F02P9/002 ,  F02B5/02 ,  F02P19/02 ,  F02P23/04 ,  H01T19/00

Abstract: The invention provides a system and method for controlling corona discharge and arc formations during a single corona event, i.e. intra-event control. A driver circuit provides energy to the corona igniter and detects any arc formation. In response to each arc formation, the energy provided to the corona igniter is shut off for short time. The driver circuit also obtains information about the arc formations, such as timing of the first arc formation and number of occurrences. A control unit then adjusts the energy provided to the corona igniter after the shut off time and during the same corona event based on the information about the arc formations. For example, the voltage level could be reduced or the shut-off time could be increased to limit arc formations and increase the size of the corona discharge during the same corona event.

Abstract translation: 本发明提供了一种用于在单个电晕事件（即事件内控制）期间控制电晕放电和电弧形成的系统和方法。 驱动电路为电晕点火器提供能量并检测任何电弧形成。 响应于每个电弧形成，提供给电晕点火器的能量被短时间切断。 驱动电路还获得关于电弧形成的信息，例如第一弧形的定时和出现次数。 然后，控制单元基于关于电弧形成的信息来调节在关闭时间之后和在相同的电晕事件期间提供给电晕点火器的能量。 例如，可以降低电压电平或者可以增加关断时间以限制电弧形成并且在相同的电晕事件期间增加电晕放电的尺寸。

公开(公告)号：US09413314B2

公开(公告)日：2016-08-09

申请号：US13842803

申请日：2013-03-15

Applicant: Federal-Mogul Ignition Company

Inventor： Keith Hampton ,  Alfred Permuy ,  John Antony Burrows

IPC: F02P3/04 ,  H03F3/45 ,  F23Q3/00 ,  F02P9/00 ,  F02P23/04 ,  H01T13/50 ,  F02P3/01 ,  F02P17/00

CPC classification number: H03F3/45076 ,  F02P3/01 ,  F02P3/04 ,  F02P9/002 ,  F02P17/00 ,  F02P23/04 ,  F23Q3/004 ,  H01T13/50

Abstract: A power amplifier circuit that has an inductor and capacitor connected to one end of the output winding of an RF transformer. The other end of the output winding is connected to a current sensor that in turn is connected to ground. The transformer has two primary windings. Both primary windings have one end connected to a voltage supply. The other end of each primary winding is attached to a switch. All three windings are wound around a core. Current flowing from the DC voltage supply to the switches causes a magnetic flux in the core. A voltage is generated on the secondary winding current sensor by the current that flows through the igniter. This voltage is fed back to the switches, controlling on and off timing. Voltage is provided to the igniter or pulled from the igniter when the current traveling into or from the igniter is at zero.

Abstract translation: 功率放大器电路，其具有连接到RF变压器的输出绕组的一端的电感器和电容器。 输出绕组的另一端连接到电流传感器，电流传感器又连接到地。 变压器有两个初级绕组。 两个初级绕组的一端连接到电源。 每个初级绕组的另一端连接到开关上。 所有三个绕组缠绕在一个芯上。 从直流电源流向开关的电流导致磁芯中的磁通量。 在次级绕组电流传感器上通过点火器流过的电流产生电压。 该电压被反馈到开关，控制开和关定时。 当进入或离开点火器的电流为零时，电压被提供给点火器或从点火器拉出。