公开(公告)号：US06664719B2

公开(公告)日：2003-12-16

申请号：US10106249

申请日：2002-03-27

Applicant: Wataru Matsutani ,  Masayuki Segawa ,  Satoko Ito

Inventor： Wataru Matsutani ,  Masayuki Segawa ,  Satoko Ito

IPC: H01T1320

CPC classification number: H01T13/39

Abstract: A spark plug having a discharge portion formed of a noble-metal chip, the spark plug being capable of restraining wear observed on a slenderized discharge portion in particular. Discharge portion (31) includes noble-metal chip (31′). Dimension D is 0.3-0.8 mm; and H is 0.4-2 mm, where D (mm) is a diameter representing the outside diameter of the noble-metal chip, and H (mm) is a discharge portion thickness representing the shortest distance between the periphery of a discharge face (31t) and a corresponding end edge of a weld zone W where a center electrode (3) and the noble-metal chip (31′) are welded. Further, the noble-metal chip (31′) contains a predominant amount of Ir and 0.5-8% by weight Ni.

Abstract translation: 一种具有由贵金属芯片形成的放电部分的火花塞，该火花塞特别能够抑制在细长的放电部分上观察到的磨损。 放电部（31）包括贵金属芯片（31'）。 尺寸D为0.3-0.8mm; H为0.4-2mm，其中D（mm）为代表贵金属芯片外径的直径，H（mm）为排出面（31t）的周边之间的最短距离的排出部分厚度 ）和焊接区域W的对应的端部边缘，其中中心电极（3）和贵金属芯片（31'）被焊接。 此外，贵金属片（31'）含有主要量的Ir和0.5-8重量％的Ni。

公开(公告)号：US06597089B2

公开(公告)日：2003-07-22

申请号：US09742384

申请日：2000-12-22

Applicant: Wataru Matsutani

Inventor： Wataru Matsutani

IPC: H01T1320

CPC classification number: H01T13/39

Abstract: A spark plug including a center electrode which extends in the axial direction and is composed of a body and an electrode whose root end is joined to the end face of the body. The distance between a joined portion of the body and the electrode tip and the face of a free end of the electrode tip is at least 0.15 mm, particularly at least 0.2 mm. A diametral dimension of the electrode tip measured at a position located at the interface between the electrode tip and the joined portion and nearest to the free end of the electrode tip is at least 0.2 mm, particularly at least 0.25 mm, greater than a diametral dimension of the electrode tip measured at the free end. The spark plug suppresses lateral consumption of the electrode tip arising in the vicinity of a joined portion formed through welding.

Abstract translation: 一种火花塞，其包括沿轴向延伸并由主体构成的中心电极和其端部与主体的端面接合的电极。 本体的接合部与电极头的距离与电极头的自由端面的距离为0.15mm以上，特别优选为0.2mm以上。 在位于电极末端和接合部分之间并且最靠近电极末端自由端的位置的位置处测量的电极尖端的直径尺寸至少为0.2mm，特别是至少0.25mm，大于直径尺寸 的电极尖端在自由端测量。 火花塞抑制由焊接形成的接合部附近产生的电极头的横向消耗。

公开(公告)号：US06533628B1

公开(公告)日：2003-03-18

申请号：US09546206

申请日：2000-04-10

Applicant: Wataru Matsutani

Inventor： Wataru Matsutani

IPC: H01T2102

CPC classification number: H01T21/02

Abstract: A noble metal chip 31′ is superimposed on a surface of a central electrode 3 made of a heat resisting alloy, the main component of which is Ni or Fe, to which the chip is secured so that a superimposed assembly 70 is constituted. A perimeter laser weld portion 10 across the noble metal chip 31′ and a chip securing surface forming portion is formed around the outer surface of the chip of the superimposed assembly 70. Thus, the noble metal chip 31′ is secured to the chip securing surface so that a noble-metal igniting portion 31 is constituted. To form the perimeter laser weld portion 10 which has a maximum outer dimension dmax which is smaller than 2.0 mm and which does not reach the discharging surface 31a in a direction of the thickness of the noble metal chip 31′, a laser beam source 50 is, as a light source of laser beams for use in a welding operation, employed-which is arranged such that energy per pulse is 2 J to 6 J, the length of the pulse is 1 millisecond to 10 milliseconds and the pulse generating frequency is 2 pulse/second to 20 pulse/second.

Abstract translation: 贵金属芯片31'重叠在由耐热合金制成的中心电极3的表面上，该耐热合金的主要成分是Ni或Fe，芯片被固定到其上，从而构成叠加的组件70。 在叠加组件70的芯片的外表面周围形成了跨越贵金属芯片31'的周边激光焊接部分10和芯片固定表面形成部分。因此，贵金属芯片31'固定到芯片固定表面 从而构成贵金属点火部31。 为了形成最大外形尺寸dmax小于2.0mm并且在贵金属芯片31'的厚度方向上不到达排出表面31a的周边激光焊接部分10，激光束源50 作为用于焊接操作的激光束的光源，其被布置为使得每脉冲的能量为2J至6J，脉冲的长度为1毫秒至10毫秒，脉冲产生频率为2 脉冲/秒至20脉冲/秒。

公开(公告)号：US06528929B1

公开(公告)日：2003-03-04

申请号：US09437359

申请日：1999-11-10

Applicant: Wataru Matsutani ,  Hiroaki Nasu

Inventor： Wataru Matsutani ,  Hiroaki Nasu

IPC: H01T1339

CPC classification number: H01T13/39

Abstract: A spark plug includes a chip made of iridium. The distance E between the chip and a copper core of a core rod of the center electrode is not greater than 3.5 mm. The core rod has a diameter D1 of 1.4 mm to 2.6 mm. The ratio of a chip diameter D2 to the core rod diameter D1, or D2/D1, is not greater than 0.50.

Abstract translation: 火花塞包括由铱制成的芯片。 芯片与中心电极芯棒的铜芯之间的距离E不大于3.5mm。 芯棒的直径D1为1.4mm至2.6mm。 芯片直径D2与芯棒直径D1或D2 / D1的比例不大于0.50。

公开(公告)号：US06489709B1

公开(公告)日：2002-12-03

申请号：US09531602

申请日：2000-03-20

Applicant: Hideki Teramura ,  Wataru Matsutani

Inventor： Hideki Teramura ,  Wataru Matsutani

IPC: H01T1304

CPC classification number: H01T13/08

Abstract: A gasket for a threaded element such as a spark plug to be screwed into a threaded hole of a support such as a cylinder head is provided. The threaded element has a threaded portion and an annular seat portion. The gasket is installed on the threaded element and compressed between the seat portion and an outer surface of the support around a threaded hole, when the threaded element is screwed into the threaded hole, to provide a seal between the threaded portion and the threaded hole. The gasket is formed from an annular sheet metal and in the form of an annular strip of a cross section including a plurality of bent portions. The cross section is made by a plane including a center axis of the gasket and of a such a bent shape as to enable an imaginary reference line which is located on the above described plane and parallel with the center axis, to cross at least three portions of the cross section. The initial axial size of the gasket, i.e., the height of the gasket before the gasket is compressed, is at least 2.5 mm. When pressure within a proper pressure range is applied to the gasket, i.e., within a proper pressure range from 6 to 12 kgf/mm2, a variation &Dgr;&agr; of compressive deformation &agr; of the gasket corresponding to advance or axial movement of the threaded element by at least 0.5 pitch of the thread, i.e., corresponding to movement of the threaded element resulting from at least 0.5 turn is retained.

Abstract translation: 提供用于螺纹元件的垫圈，例如火花塞被拧入诸如气缸盖的支撑件的螺纹孔中。 螺纹元件具有螺纹部分和环形座部分。 当螺纹元件旋入螺纹孔时，垫圈安装在螺纹元件上并且在座部与支撑件的外表面之间被压缩在螺纹孔周围，以在螺纹部分和螺纹孔之间提供密封。 垫圈由环形金属板形成，并且是包括多个弯曲部分的横截面的环形带的形式。 横截面由包括垫圈的中心轴线的平面和具有这样的弯曲形状的平面制成，以使得位于上述平面上并与中心轴线平行的虚拟参考线能够穿过至少三个部分 的横截面。 衬垫的初始轴向尺寸，即衬垫被压缩之前垫圈的高度至少为2.5mm。 当在适当的压力范围内的压力施加到垫圈时，即在6至12kgf / mm 2的适当压力范围内时，垫圈的压缩变形α的变化Δδ对应于螺纹元件的前进或轴向运动 螺纹的至少0.5间距，即对应于由至少0.5匝引起的螺纹元件的移动被保留。

公开(公告)号：US06437493B2

公开(公告)日：2002-08-20

申请号：US09790655

申请日：2001-02-23

Applicant: Hiroaki Nasu ,  Wataru Matsutani ,  Chiaki Kumada ,  Katsunari Ninomiya

Inventor： Hiroaki Nasu ,  Wataru Matsutani ,  Chiaki Kumada ,  Katsunari Ninomiya

IPC: H01T1320

CPC classification number: E04F13/144 ,  C23C2222/10 ,  E04F19/00 ,  F23Q7/001 ,  F23Q2007/004 ,  H01T13/20 ,  H01T13/39 ,  H01T21/02

Abstract: In a glow plug and a spark plug, the surface of a main metal shell is coated with a chromate film in which the quantity of trivalent chrome is 95 wt % or more of the contained chrome components and which has a thickness of 0.2 &mgr;m to 0.5 &mgr;m.

Abstract translation: 在电热塞和火花塞中，主金属壳的表面涂覆有铬酸盐膜，其中三价铬的量为所含铬成分的95重量％以上，厚度为0.2μm〜0.5μm 妈妈

公开(公告)号：USRE41944E1

公开(公告)日：2010-11-23

申请号：US12257543

申请日：2008-10-24

Applicant: Wataru Matsutani ,  Osamu Yoshimoto ,  Yoshihiro Matsubara

Inventor： Wataru Matsutani ,  Osamu Yoshimoto ,  Yoshihiro Matsubara

IPC: H01R43/16 ,  B21F45/00 ,  H01T13/39 ,  H01T21/02

CPC classification number: B21F45/00 ,  B21C37/045 ,  H01T13/39 ,  H01T21/02 ,  Y10S72/70 ,  Y10T29/49117 ,  Y10T29/49204 ,  Y10T29/49989 ,  Y10T29/49991 ,  Y10T29/5195

Abstract: In a wire drawing process for forming a wire rod containing iridium as a main component and which further contains nickel and at least one of platinum, rhodium and ruthenium, and having a cross-sectional area of not smaller than 0.05 mm2 and not larger than 1.2 mm2. The worked material is continuously heated red hot and/or white hot in a heating region 103 extending up to 60 mm from the work inserting surface 101a of a die 101 in a direction opposite that in which the work 102 moves, the work being heated to a temperature of 1000 to 1150° C. at a temperature measuring position 105 which is removed from the work inserting surface 101a by 20 mm. Furthermore, the temperature in the region 106 extending from the temperature measuring position 105 to the work inserting surface 101a is set to not lower than 1000° C., and the wire drawing rate is set to 300 to 1600 mm/min.

Abstract translation: 在用于形成含有铱作为主要成分并且还包含镍和至少一种铂，铑和钌的线材并且具有不小于0.05mm 2且不大于1.2的横截面积的线材的​​拉丝工艺中 mm2。 被加工材料在与工件102移动的方向相反的方向从模具101的工件插入面101a延伸达60mm的加热区域103中连续加热红热和/或白热，加热到 在从工件插入表面101a移除20mm的温度测量位置105处的温度为1000至1150℃。 此外，从温度测量位置105延伸到工件插入表面101a的区域106中的温度设定为不低于1000℃，并且拉丝速率设定为300至1600mm / min。

公开(公告)号：US07827954B2

公开(公告)日：2010-11-09

申请号：US11603158

申请日：2006-11-22

Applicant: Satoshi Nagasawa ,  Katsunori Hagiwara ,  Wataru Matsutani

Inventor： Satoshi Nagasawa ,  Katsunori Hagiwara ,  Wataru Matsutani

IPC: H01T13/54 ,  H01T13/20

CPC classification number: F02P9/007 ,  F02P5/00 ,  F02P17/12 ,  H01T13/50

Abstract: There is provided a method for controlling a plasma-jet spark plug in a four-stroke internal combustion engine, including the steps of: causing the spark plug to generate a primary discharge during either a compression stroke or an expansion stroke of the engine in such a manner as to produce a plasma by the primary discharge; and causing the spark plug to generate a secondary discharge during a time after the primary discharge and before the completion of a subsequent intake stroke of the engine.

Abstract translation: 提供了一种用于控制四冲程内燃机中的等离子体火花塞的方法，包括以下步骤：在发动机的压缩冲程或膨胀冲程期间使火花塞产生初次排放 通过初次放电产生等离子体的方式; 并且使得火花塞在一次排出之后的时间和在随后的发动机的进气冲程完成之前产生二次排放。

公开(公告)号：US07804232B2

公开(公告)日：2010-09-28

申请号：US10571690

申请日：2005-01-27

Applicant: Kenichi Kumagai ,  Wataru Matsutani ,  Kenji Kobayashi

Inventor： Kenichi Kumagai ,  Wataru Matsutani ,  Kenji Kobayashi

IPC: F02M57/06 ,  F02P13/00 ,  H01T13/20

CPC classification number: C22C19/056 ,  H01T13/39

Abstract: To provide a spark plug in which separation of a tip can be prevented and enough wear resistance can be obtained without increasing the content of nickel in the tip portion, and a use method of the spark plug.In a spark plug (100) including an outside electrode (10) including an electrode body portion (11) and a tip (12) bonded to the electrode body portion (11), and a center electrode (20), and the tip (12) is opposed to the front end portion of the center electrode (20) through a spark discharge gap (G), the electrode body portion (11) is made of a nickel alloy containing 13 to 18% by mass of Cr, 0.03 to 0.08% by mass of C, 1 to 3.5% by mass of Mo, 0 to 0.8% by mass of Si, Al, Mn and Ti, and 68% by mass or more of Ni, and the tip (12) is made of a platinum alloy containing 0 to 4% by mass of Ni.

Abstract translation: 为了提供火花塞，其中可以防止尖端的分离，并且可以获得足够的耐磨性而不增加尖端部分中的镍含量，以及火花塞的使用方法。 在包括外部电极（10）的火花塞（100）中，包括电极主体部分（11）和接合到电极体部分（11）的端部（12），以及中心电极（20）和尖端 12）通过火花放电间隙（G）与中心电极（20）的前端部相对，电极体部（11）由含有13〜18质量％的Cr，0.03〜 0.08质量％的C，1〜3.5质量％的Mo，0〜0.8质量％的Si，Al，Mn和Ti，以及68质量％以上的Ni，前端（12）由 含有0〜4质量％的Ni的铂合金。

公开(公告)号：US07714488B2

公开(公告)日：2010-05-11

申请号：US11601111

申请日：2006-11-17

Applicant: Satoshi Nagasawa ,  Katsunori Hagiwara ,  Wataru Matsutani

Inventor： Satoshi Nagasawa ,  Katsunori Hagiwara ,  Wataru Matsutani

IPC: H01T13/20

CPC classification number: F02P9/007 ,  F02P3/0884 ,  H01T13/20 ,  H01T13/50

Abstract: A plasma jet spark plug provides improved ignitability and durability by forming a part of a spark discharge gap outside the electric discharge space which generates plasma. An ignition system for the plasma jet spark plug is also disclosed. The plasma jet spark plug includes a center electrode, an insulator defining an axial bore which partially surrounds the center electrode, a cavity surrounded by an inner circumferential face of the axial bore which extends from an opening portion of a front end of the axial bore of the insulator and wherein a front end face of the center electrode is formed. A ground electrode is bent towards a front end portion of the insulator.

Abstract translation: 等离子体火花塞通过在产生等离子体的放电空间之外形成火花放电间隙的一部分来提供改善的点火性和耐久性。 还公开了一种用于等离子体火花塞的点火系统。 等离子喷射火花塞包括中心电极，限定轴向孔的绝缘子，其部分地围绕中心电极，由轴向孔的内周面包围的空腔，其从轴向孔的前端的开口部分延伸， 绝缘体，其中形成中心电极的前端面。 接地电极朝向绝缘体的前端部弯曲。