公开(公告)号：US06791246B2

公开(公告)日：2004-09-14

申请号：US10267041

申请日：2002-10-09

申请人： Werner Niessner

发明人： Werner Niessner

IPC分类号： H01T1320

CPC分类号： H01T21/02

摘要： A method for manufacturing spark plugs with central and body electrode(s) armed with noble metal inserts, in which the tip of a central electrode which is pyramid or conic shaped with a base diameter (d), is liquefied by being pressed against a noble metal ball with diameter (d) that is mounted in the face of a welding electrode under a defined welding contact pressure and defined welding parameters. The liquefied material of the central electrode tip partially flows around the noble metal ball, and the welding electrode is separated from the central electrode after the liquefied material of the central electrode tip has solidified with noble metal ball embedded therein.

摘要翻译： 一种用于制造具有装有贵金属插件的中心电极和身体电极的火花塞的方法，其中具有基底直径（d）的金字塔形或锥形形状的中心电极的尖端通过压靠贵族 直径（d）的金属球，在规定的焊接接触压力和规定的焊接参数下安装在焊接电极的表面。 中心电极尖端的液化材料部分地流过贵金属球，并且在中心电极头的液化材料已经固化了贵金属球之后，焊接电极与中心电极分离。

公开(公告)号：US06653767B2

公开(公告)日：2003-11-25

申请号：US09960514

申请日：2001-09-24

申请人： Hitoshi Morita ,  Shinichi Okabe ,  Takehiko Kato ,  Hiroshi Yorita ,  Keiji Kanao ,  Tetsuya Miwa

发明人： Hitoshi Morita ,  Shinichi Okabe ,  Takehiko Kato ,  Hiroshi Yorita ,  Keiji Kanao ,  Tetsuya Miwa

IPC分类号： H01T1320

CPC分类号： H01T13/39 ,  H01T13/20

摘要： At least one of a center electrode tip and a ground electrode tip is made of an iridium alloy. A discharge gap, formed between the center electrode tip and the ground electrode tip, is less than 1.1 mm. And, cross sections of the center electrode tip and the ground electrode tip are equal to or smaller than 0.95 mm2 in a spherical region where a distance from a midpoint of the discharge gap is within 0.6 mm.

摘要翻译： 中心电极尖端和接地电极尖端中的至少一个由铱合金制成。 形成在中心电极尖端和接地电极尖端之间的放电间隙小于1.1mm。 并且，在距离放电间隙的中点的距离在0.6mm以内的球面区域中，中心电极端部和接地电极端部的截面为0.95mm 2以下。

公开(公告)号：US06614145B2

公开(公告)日：2003-09-02

申请号：US09934068

申请日：2001-08-21

申请人： Charles T. Fleetwood ,  Ned A. Schmaltz

发明人： Charles T. Fleetwood ,  Ned A. Schmaltz

IPC分类号： H01T1320

CPC分类号： H01T13/39

摘要： An igniter having a two-piece center electrode assembly that includes an upper electrode member and an iridium lower electrode member. The two electrode members are assembled together by insertion of an expanded head section of the iridium electrode into a blind hole within the upper electrode. The upper electrode is then swaged over the expanded head section to provide a positive mechanical interlock of the two electrode members together. Thereafter, the two components are brazed together by heating of a brazing compound that is pre-loaded into the blind hole prior to insertion of the expanded head section. This assembly results in both a mechanical and metallurgical bond between the two components without subjecting the iridium electrode to deformation that could otherwise result in axial cracking of the iridium material.

摘要翻译： 具有包括上电极构件和铱下电极构件的两件式中心电极组件的点火器。 通过将铱电极的扩大头部插入上电极内的盲孔中，将两个电极构件组装在一起。 然后将上电极在扩大的头部上模压，以提供两个电极构件的正机械互锁。 此后，通过在插入扩展的头部之前加热预先加载到盲孔中的钎焊化合物将两个部件钎焊在一起。 该组件导致两个部件之间的机械和冶金结合，而不会使铱电极经受变形，否则可能导致铱材料的轴向破裂。

公开(公告)号：US06573641B2

公开(公告)日：2003-06-03

申请号：US09793504

申请日：2001-02-27

申请人： Wataru Matsutani

发明人： Wataru Matsutani

IPC分类号： H01T1320

CPC分类号： H01T13/20 ,  H01T13/39

摘要： A spark plug is provided which comprises a center electrode and a ground electrode having at a free end portion thereof a discharge surface which is opposite to an axial end surface of the center electrode to provide therebetween a spark gap, wherein the center electrode has a center electrode tip forming the axial end surface thereof, the center electrode tip being made of a material containing Ir as a major constituent, and wherein G≦2A+0.5 where G is a spark gap (mm) and A is the distance (mm) between a first imaginary line and a second marginal line.

摘要翻译： 提供一种火花塞，其包括中心电极和接地电极，在其自由端部具有与中心电极的轴向端面相对的放电表面，以在其间提供火花隙，其中中心电极具有中心 电极尖端形成其轴向端面，中心电极头由以Ir为主要成分的材料制成，其中G = 2A + 0.5，其中G为火花隙（mm），A为距离（mm） 在第一假想线和第二边缘线之间。

公开(公告)号：US06559579B2

公开(公告)日：2003-05-06

申请号：US09725180

申请日：2000-11-29

申请人： Hirohito Ito ,  Kenji Nunome ,  Makoto Sugimoto ,  Kuniharu Tanaka ,  Katsura Matsubara ,  Yoshihiro Yamamoto ,  Masaya Ito

发明人： Hirohito Ito ,  Kenji Nunome ,  Makoto Sugimoto ,  Kuniharu Tanaka ,  Katsura Matsubara ,  Yoshihiro Yamamoto ,  Masaya Ito

IPC分类号： H01T1320

CPC分类号： H01T13/38

摘要： An insulator for spark plug comprises an alumina-based sintered body comprising: Al2O3 as a main component; and at least one component (hereinafter referred to as “&bgr; component”) selected from the group consisting of Ca component, Sr component and Ba component, wherein the alumina-based sintered body comprises particles comprising a compound comprising the &bgr; component and Al component, the compound having a molar ratio of the Al component to the &bgr; component of 4.5 to 6.7 as calculated in terms of oxides thereof, and has a relative density of 90% or more.

摘要翻译： 一种用于火花塞的绝缘体包括：氧化铝基烧结体，其包括：Al 2 O 3作为主要成分; 以及选自由Ca成分，Sr成分和Ba成分组成的组中的至少一种成分（以下称为“β成分”），其中，所述氧化铝系烧结体包含含有β成分和Al成分的化合物的粒子， 所述化合物的Al成分与β成分的摩尔比以其氧化物计算为4.5〜6.7，相对密度为90％以上。

公开(公告)号：US06472801B1

公开(公告)日：2002-10-29

申请号：US09603612

申请日：2000-06-26

申请人： Yoshihiro Matsubara ,  Shoichiro Ito ,  Yuji Hirano ,  Naomichi Miyashita ,  Hiroaki Kuki

发明人： Yoshihiro Matsubara ,  Shoichiro Ito ,  Yuji Hirano ,  Naomichi Miyashita ,  Hiroaki Kuki

IPC分类号： H01T1320

CPC分类号： H01T13/52

摘要： In a creeping discharge type spark plug, the firing surface forming portions of a center electrode and a ground electrode are made of a metallic material containing a corrosion impeding component consisting of one or more of Fe, Cr and Cu. The spark plug is attached to an internal combustion engine. When it is operated under conditions of a predetermined high speed and high load, a corrosion impeding layer containing a corrosion impeding component is formed on the surface of the top end of an insulating member, with progression of spark discharge in spark discharge gaps. The corrosion impeding layer thus formed protects the center electrode from the attack by the creeping discharge spark. Therefore, the channeling is considerably effectively prevented or restricted.

摘要翻译： 在蠕变放电型火花塞中，中心电极和接地电极的烧成面形成部分由含有由Fe，Cr和Cu中的一种或多种组成的防腐蚀部件的金属材料制成。 火花塞连接在内燃机上。 当其在预定的高速和高负载的条件下运行时，在绝缘构件的顶端的表面上形成包含防腐蚀部件的防腐层，伴随着火花放电间隙的火花放电。 这样形成的防腐层可以保护中心电极免受蠕变放电火花的攻击。 因此，有效地防止或限制了渠道化。

公开(公告)号：US06452314B1

公开(公告)日：2002-09-17

申请号：US09478161

申请日：2000-01-05

申请人： Jeffrey T. Boehler

发明人： Jeffrey T. Boehler

IPC分类号： H01T1320

CPC分类号： H01T13/20

摘要： A method of coating a metal spark plug shell with a titanium-containing compound involves placing the shell into a vacuum chamber, lowering the pressure in the chamber to a level below atmospheric pressure, and applying a protective coating, containing a titanium compound, to a portion of the exterior of the spark plug shell by physical vapor deposition. A preferred titanium compound is titanium nitride. The coating on the spark plug shell improves corrosion resistance thereof, provides a pleasing appearance, and resists seizing of the spark plug in place in a cylinder head portion of an engine. A spark plug incorporating the coated shell is also disclosed.

摘要翻译： 用含钛化合物涂覆金属火花塞壳的方法包括将壳放入真空室中，将室中的压力降低到低于大气压的水平，并将含钛化合物的保护涂层施加到 通过物理气相沉积，火花塞外壳的外部部分。 优选的钛化合物是氮化钛。 火花塞壳上的涂层提高其耐腐蚀性，提供令人愉快的外观，并且防止火花塞在发动机的气缸盖部分中的适当位置。 还公开了一种结合有涂层壳的火花塞。

公开(公告)号：US06373172B1

公开(公告)日：2002-04-16

申请号：US09468803

申请日：1999-12-21

申请人： Keiji Kanao ,  Tunenobu Hori

发明人： Keiji Kanao ,  Tunenobu Hori

IPC分类号： H01T1320

CPC分类号： H01T13/20 ,  H01T13/32 ,  H01T13/39

摘要： In a spark plug having a straight pillar type ground electrode whose protruding length into the combustion chamber is relatively short, an intermediate member is provided at a bridging portion between the end of the housing and the leading end of the ground electrode so as to easily adjust the spark discharge gap.

摘要翻译： 在具有突出长度进入燃烧室的直柱型接地电极的火花塞相对短的情况下，在壳体的端部与接地电极的前端之间的桥接部分设置有中间部件，以便容易地调整 火花放电间隙。

公开(公告)号：US06362562B1

公开(公告)日：2002-03-26

申请号：US09656259

申请日：2000-09-06

申请人： Paul Rossi

发明人： Paul Rossi

IPC分类号： H01T1320

CPC分类号： H01T13/467

摘要： A spark plug derives an extended lifetime because a large plurality of sharp edges are provided on the center electrode, the ground electrode, or both to enhance spark propagation. In a first embodiment, the ground electrode has a conventional cantilever shape, but the center electrode extends into coplanar relation to a distal surface of the electrode so that sparks propagate from the cylindrical side walls of the center electrode. In variations of the first embodiment, the number of cantilevered ground electrodes is increased, with the ground electrodes being circumferentially and equidistantly spaced about the center electrode. In another embodiment, the ground electrode has an annular configuration and includes a cylindrical annular wall spaced radially outwardly of the cylindrical sidewall of the center electrode, in concentric relation to the center electrode. Variations of the second embodiment include screw threads, knurls, and various projections formed on the ground electrode, the center electrode, or both.

公开(公告)号：US06359377B1

公开(公告)日：2002-03-19

申请号：US09243093

申请日：1999-02-02

申请人： Harold E. Durling

发明人： Harold E. Durling

IPC分类号： H01T1320

CPC分类号： G01L23/16 ,  G01L23/22

摘要： A pressure-sensing ignition device (10) for use in a spark ignition system of an internal combustion engine. The device (10) generally includes a body (14) having a longitudinal axis of symmetry and an internal chamber (12). Disposed in the chamber (12) adjacent one end of the body (14) is an orifice (44) that vents the chamber (12) to the exterior of the body (14). An electrode (18) and an optical pressure transducer (24) are present within the body (14). An optical cable (22) is connected to the transducer (24) for transmitting an optical pressure signal. Means (20) is provided for conducting a current to the electrode (18) via the optical cable (22).

摘要翻译： 一种用于内燃机的火花点火系统的压力感测点火装置（10）。 装置（10）通常包括具有纵向对称轴线的主体（14）和内部腔室（12）。 邻近主体（14）的一端的腔室（12）中设置有将腔室（12）排放到主体（14）的外部的孔口（44）。 电极（18）和光学压力传感器（24）存在于主体（14）内。 光缆（22）连接到换能器（24），用于传输光学压力信号。 提供了用于经由光缆（22）将电流传导到电极（18）的装置（20）。