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公开(公告)号：US20120104959A1
公开(公告)日：2012-05-03
申请号：US13280516
申请日：2011-10-25
IPC分类号： F02P3/00
CPC分类号： H01T13/50
摘要： An ignition system including a plasma jet spark plug, a discharge power source, and an energy input portion. The spark plug includes a center electrode inserted and installed in the axis hole of an insulator, a ground electrode forming a clearance with the center electrode in between, and a cavity defined by an inner peripheral surface of the axis hole and a top end surface of the center electrode. A plasma is generated in the cavity as the discharge power source generates a spark discharge by applying a voltage to the clearance and the energy input portion inputs electric power into the clearance. The energy input portion inputs electric power into the clearance more than once in a single spark discharge.
摘要翻译： 一种包括等离子体火花塞，放电电源和能量输入部分的点火系统。 火花塞包括插入并安装在绝缘体的轴孔中的中心电极，与其间的中心电极形成间隙的接地电极和由轴孔的内周面限定的空腔和顶端面 中心电极。 当放电电源通过向间隙施加电压而产生火花放电时，在空腔中产生等离子体，能量输入部分将电力输入到间隙中。 能量输入部分在单次火花放电中多次输入电力进入间隙。
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公开(公告)号：US20120080995A1
公开(公告)日：2012-04-05
申请号：US13239891
申请日：2011-09-22
摘要： A plasma jet ignition plug that reliably prevents current leakage with restraint on variation in the position of a ground electrode relative to an insulator and on overheat of the ground electrode, for stable generation of plasma. The plug includes an insulator having an axial bore extending in the direction of an axis CL1, a center electrode inserted in the axial bore, a metallic shell disposed externally of the outer circumference of the insulator, and a ground electrode fixed to the metallic shell, and has a cavity defined by the wall surface of the axial bore and the front end surface of the center electrode. Supports intervene between the insulator and the ground electrode. A space formed radially outward of the supports and a space formed radially inward of the support communicate with each other.
摘要翻译： 一种等离子喷射火花塞，其可靠地防止接地电极相对于绝缘体的位置变化和接地电极过热时的电流泄漏，从而稳定地产生等离子体。 插塞包括具有沿轴线CL1的方向延伸的轴向孔的绝缘体，插入在轴向孔中的中心电极，设置在绝缘体的外周的外部的金属壳和固定到金属壳的接地电极， 并且具有由轴向孔的壁表面和中心电极的前端表面限定的空腔。 支持绝缘体和接地电极之间的介入。 形成在所述支撑体的径向外侧的空间和从所述支撑体的径向内侧形成的空间相互连通。
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公开(公告)号：US20110241523A1
公开(公告)日：2011-10-06
申请号：US13076835
申请日：2011-03-31
IPC分类号： H01T13/20
摘要： A plasma jet ignition plug having high ignition performance and high durability. The plasma jet ignition plug comprises a center electrode wherein at least a front end portion including a front end surface of the center electrode contains an oxide of at least one of the rare earth elements in a total amount of 0.5% by mass to 10% by mass inclusive and tungsten (W) in an amount of 90% by mass or greater, or contains iridium (Ir) in an amount of 0.3% by mass to 3% by mass inclusive and W in an amount of 97% by mass or greater.
摘要翻译： 具有高点火性能和高耐久性的等离子体喷射式火花塞。 等离子喷射火花塞包括中心电极，其中至少包括中心电极的前端表面的前端部分含有至少一种稀土元素的氧化物，总量为0.5质量％至10质量％ 质量含量和90质量％以上的钨（W），或者含有0.3质量％〜3质量％的铱（Ir）和97质量％以上的W 。
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公开(公告)号：US08237342B2
公开(公告)日：2012-08-07
申请号：US13239891
申请日：2011-09-22
IPC分类号： H01T13/20
摘要： A plasma jet ignition plug that reliably prevents current leakage with restraint on variation in the position of a ground electrode relative to an insulator and on overheat of the ground electrode, for stable generation of plasma. The plug includes an insulator having an axial bore extending in the direction of an axis CL1, a center electrode inserted in the axial bore, a metallic shell disposed externally of the outer circumference of the insulator, and a ground electrode fixed to the metallic shell, and has a cavity defined by the wall surface of the axial bore and the front end surface of the center electrode. Supports intervene between the insulator and the ground electrode. A space formed radially outward of the supports and a space formed radially inward of the support communicate with each other.
摘要翻译： 一种等离子喷射火花塞，其可靠地防止接地电极相对于绝缘体的位置变化和接地电极过热时的电流泄漏，从而稳定地产生等离子体。 插塞包括具有沿轴线CL1的方向延伸的轴向孔的绝缘体，插入在轴向孔中的中心电极，设置在绝缘体的外周的外部的金属壳和固定到金属壳的接地电极， 并且具有由轴向孔的壁表面和中心电极的前端表面限定的空腔。 支持绝缘体和接地电极之间的介入。 形成在所述支撑体的径向外侧的空间和从所述支撑体的径向内侧形成的空间相互连通。
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公开(公告)号：US08196557B2
公开(公告)日：2012-06-12
申请号：US13038442
申请日：2011-03-02
摘要： A plasma jet ignition plug including an insulator having an axial hole extending therethrough in the direction of an axis CL1, a center electrode inserted into the axial hole, and a ground electrode disposed frontward of the front end of the insulator. The insulator has a cavity defined by the wall surface of the axial hole and the front end surface of the center electrode and opens frontward. The ground electrode has a through hole for establishing communication between the cavity and an ambient atmosphere. A front end portion of the center electrode is formed into a taper portion whose diameter reduces frontward in the direction of the axis CL1. The outside diameter of a front end of the taper portion is smaller than the diameter of the through hole. The cavity has a substantially constant diameter with respect to the direction of the axis CL1.
摘要翻译： 一种等离子体火花塞，包括具有沿轴线CL1的方向延伸穿过的轴向孔的绝缘体，插入到轴向孔中的中心电极和设置在绝缘体前端的接地电极。 绝缘体具有由轴孔的壁面和中心电极的前端面形成的空腔，向前开口。 接地电极具有用于在空腔和周围环境之间建立连通的通孔。 中心电极的前端部形成为直径在轴线CL1的方向上向前减小的锥形部。 锥形部分的前端的外径小于通孔的直径。 空腔相对于轴线CL1的方向具有基本恒定的直径。
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6.发明申请公开(公告)号：US20120013262A1
公开(公告)日：2012-01-19
申请号：US13176988
申请日：2011-07-06
IPC分类号： F02P3/09
摘要： An ignition apparatus for an ignition plug which uses a positive polarity power supply, which can cause the ignition plug to generate spark discharge while using its center electrode as a negative electrode, and which can adjust the timing of supply of electric energy to the ignition plug and the timing of charging of capacitors. The ignition apparatus is adapted to cause the ignition plug to generate spark discharge while using its center electrode as a negative electrode, and includes a positive power supply, and energy supply units. Each energy supply unit includes a capacitor connected at one end to the power supply and connected at the other end to the ignition plug; a switching unit for charging; and a switching unit for energy supply.
摘要翻译： 一种使用正极性电源的火花塞点火装置，其可以使火花塞在使用其中心电极作为负极时产生火花放电，并且可以调节向火花塞供电的时间 和电容充电的时间。 点火装置适于使火花塞在使用其中心电极作为负极时产生火花放电，并且包括正电源和能量供应单元。 每个能量供应单元包括在一端连接到电源并且在另一端连接到火花塞的电容器; 用于充电的开关单元; 以及用于能量供应的开关单元。
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公开(公告)号：US20110221327A1
公开(公告)日：2011-09-15
申请号：US13038442
申请日：2011-03-02
IPC分类号： H01T13/20
摘要： A plasma jet ignition plug including an insulator having an axial hole extending therethrough in the direction of an axis CL1, a center electrode inserted into the axial hole, and a ground electrode disposed frontward of the front end of the insulator. The insulator has a cavity defined by the wall surface of the axial hole and the front end surface of the center electrode and opens frontward. The ground electrode has a through hole for establishing communication between the cavity and an ambient atmosphere. A front end portion of the center electrode is formed into a taper portion whose diameter reduces frontward in the direction of the axis CL1. The outside diameter of a front end of the taper portion is smaller than the diameter of the through hole. The cavity has a substantially constant diameter with respect to the direction of the axis CL1.
摘要翻译： 一种等离子体火花塞，包括具有沿轴线CL1的方向延伸穿过的轴向孔的绝缘体，插入到轴向孔中的中心电极和设置在绝缘体前端的接地电极。 绝缘体具有由轴孔的壁面和中心电极的前端面形成的空腔，向前开口。 接地电极具有用于在空腔和周围环境之间建立连通的通孔。 中心电极的前端部形成为直径在轴线CL1的方向上向前减小的锥形部。 锥形部分的前端的外径小于通孔的直径。 空腔相对于轴线CL1的方向具有基本上恒定的直径。
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公开(公告)号：US08853929B2
公开(公告)日：2014-10-07
申请号：US13703464
申请日：2011-06-14
摘要： An ignition plug providing excellent ignition performance that can be maintained over a long period of time by restraining channeling. The ignition plug includes a ceramic insulator having an axial bore, a center electrode inserted into the axial bore, a metallic shell, and a ground electrode fixed to the metallic shell, and has a cavity defined by an inner circumferential surface of the axial bore and the forward end surface of the center electrode. The axial bore includes a first straight portion and a diameter-reducing portion. As viewed on a section which contains an axis (CL1) of the ignition plug, a relational expression α≧10 is satisfied, where α (°) is an acute angle formed by a straight line orthogonal to the axis (CL1) and the outline of the diameter-reducing portion.
摘要翻译： 一种提供极好点火性能的火花塞，通过限制通道可以长时间保持。 火花塞包括具有轴向孔的陶瓷绝缘体，插入到轴向孔中的中心电极，金属壳和固定到金属壳的接地电极，并且具有由轴向孔的内周表面限定的空腔，以及 中心电极的前端面。 轴向孔包括第一直线部分和直径减小部分。 如果在包含火花塞的轴线（CL1）的部分观察，则满足关系式α≥10，其中α（°）是由与轴线（CL1）正交的直线形成的锐角和轮廓 的直径减小部分。
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公开(公告)号：US08536770B2
公开(公告)日：2013-09-17
申请号：US12998934
申请日：2009-12-22
IPC分类号： H01T13/20
CPC分类号： H01T13/50
摘要： A plasma jet spark plug capable of preventing a channeling progress and having excellent heat conduction. The plasma jet spark plug comprised of: a ceramic insulator having a small diameter portion which assumes a linear shape in an axial direction, and a center electrode has an outer diameter increasing in the order of a frontmost portion, a step portion, a front end portion and a body portion.
摘要翻译： 一种等离子喷射火花塞，能够防止窜槽进行并具有优异的导热性。 等离子体火花塞包括：具有沿轴向呈直线状的小直径部分的陶瓷绝缘体，中心电极的外径按照最前部，台阶部，前端 部分和主体部分。
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公开(公告)号：US20130088140A1
公开(公告)日：2013-04-11
申请号：US13703464
申请日：2011-06-14
IPC分类号： H01T13/54
摘要： An ignition plug providing excellent ignition performance that can be maintained over a long period of time by restraining channeling. The ignition plug includes a ceramic insulator having an axial bore, a center electrode inserted into the axial bore, a metallic shell, and a ground electrode fixed to the metallic shell, and has a cavity defined by an inner circumferential surface of the axial bore and the forward end surface of the center electrode. The axial bore includes a first straight portion and a diameter-reducing portion. As viewed on a section which contains an axis (CL1) of the ignition plug, a relational expression α≧10 is satisfied, where α (°) is an acute angle formed by a straight line orthogonal to the axis (CL1) and the outline of the diameter-reducing portion.
摘要翻译： 一种提供极好点火性能的火花塞，通过限制通道可以长时间保持。 火花塞包括具有轴向孔的陶瓷绝缘体，插入到轴向孔中的中心电极，金属壳和固定到金属壳的接地电极，并且具有由轴向孔的内周表面限定的空腔，以及 中心电极的前端面。 轴向孔包括第一直线部分和直径减小部分。 如果在包含火花塞的轴线（CL1）的部分观察，则满足关系式α≥10，其中α（°）是由与轴线（CL1）正交的直线形成的锐角和轮廓 的直径减小部分。
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