公开(公告)号：US06489709B1

公开(公告)日：2002-12-03

申请号：US09531602

申请日：2000-03-20

申请人： Hideki Teramura ,  Wataru Matsutani

发明人： Hideki Teramura ,  Wataru Matsutani

IPC分类号： H01T1304

CPC分类号： H01T13/08

摘要： 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.

摘要翻译： 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

申请人： Hiroaki Nasu ,  Wataru Matsutani ,  Chiaki Kumada ,  Katsunari Ninomiya

发明人： Hiroaki Nasu ,  Wataru Matsutani ,  Chiaki Kumada ,  Katsunari Ninomiya

IPC分类号： H01T1320

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

摘要： 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.

摘要翻译： 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：US08465636B2

公开(公告)日：2013-06-18

申请号：US12390567

申请日：2009-02-23

申请人： Satoshi Sugaya ,  Shiro Kakimoto ,  Hiroyuki Nishiyama ,  Wataru Matsutani

发明人： Satoshi Sugaya ,  Shiro Kakimoto ,  Hiroyuki Nishiyama ,  Wataru Matsutani

IPC分类号： G01N27/407

CPC分类号： G01N27/4077 ,  G01N27/4075 ,  G01N33/0054 ,  Y02A50/246

摘要： An ammonium gas sensor is provided. The ammonium gas sensor includes: a solid electrolyte layer having oxygen ion conductivity; a detection electrode formed on one surface of the solid electrolyte layer; a reference electrode that is a counter electrode of the detection electrode; a selective reaction layer covering the detection electrode; and a protection layer covering the selective reaction layer and made from a porous material; wherein the detection electrode includes a noble metal as a main component; the selective reaction layer includes oxide represented by AxMyOz as a main component, where A is one or more kind(s) of metal, M is vanadium, tungsten, or molybdenum and x, y, z are atomic ratios; and the protection layer includes the oxide that is in an amount smaller than a content of the oxide included in the selective reaction layer.

摘要翻译： 提供了一种铵气体传感器。 铵气体传感器包括：具有氧离子传导性的固体电解质层; 形成在所述固体电解质层的一个表面上的检测电极; 作为检测电极的对电极的参考电极; 覆盖检测电极的选择性反应层; 以及覆盖选择性反应层并由多孔材料制成的保护层; 其中所述检测电极包括贵金属作为主要成分; 选择性反应层包括由AxMyOz表示的氧化物作为主要成分，其中A是一种或多种金属，M是钒，钨或钼，x，y，z是原子比; 并且保护层包括的量小于选择性反应层中包含的氧化物的含量的氧化物。

公开(公告)号：USRE43758E1

公开(公告)日：2012-10-23

申请号：US11495524

申请日：2006-07-31

申请人： Wataru Matsutani ,  Junichi Kagawa

发明人： Wataru Matsutani ,  Junichi Kagawa

IPC分类号： H01T13/20 ,  H01T13/39

摘要： Spark plug has a central electrode, an insulator provided exterior to the central electrode, main metallic shell provided exterior to the insulator in such a way that the central electrode protrudes from one end, and a ground electrode coupled at one end to the main metallic shell and which has the other end disposed to face the central electrode 3, with a chip being secured to either the central electrode or the ground electrode or both to form spark discharge gap g. The chip is made of a metal based on Ir which contains Rh in an amount ranging from 3 to 50 wt (50 wt % being not inclusive).

摘要翻译： 火花塞具有中心电极，设置在中心电极外部的绝缘体，主金属外壳设置在绝缘体的外部，使得中心电极从一端突出，并且接地电极在一端连接到主金属外壳 并且其另一端设置为面对中心电极3，其中芯片固定到中心电极或接地电极或两者以形成火花放电间隙g。 该芯片由Ir含量为3〜50重量％（不包括50重量％）的Rh构成。

公开(公告)号：US07847472B2

公开(公告)日：2010-12-07

申请号：US11882360

申请日：2007-08-01

申请人： Akira Suzuki ,  Wataru Matsutani

发明人： Akira Suzuki ,  Wataru Matsutani

IPC分类号： H01T13/20

CPC分类号： H01T21/02 ,  H01T13/39

摘要： A spark plug including: a center electrode; an insulator which holds the center electrode therein in a state where a tip end portion of the center electrode protrudes therefrom; a metal shell which holds the insulator therein; a ground electrode which is fixed to the metal shell, the ground electrode having an inner side face having a width that is smaller as it advances toward a tip end side, in a portion of the inner side face positioned between a pair of tapered faces; and a discharge portion which is bonded to the inner side face of the ground electrode by laser welding so as to attain a diameter of 0.8 mm or less and a height of 0.5 mm or more, and a discharge gap being formed between the discharge portion and the tip end portion of said center electrode.

摘要翻译： 一种火花塞，包括：中心电极; 在中心电极的前端部突出的状态下将中心电极保持在其中的绝缘体; 一个将绝缘体固定在其中的金属外壳; 所述接地电极固定在所述金属壳体上，所述接地电极具有内侧面，所述接地电极的内侧面位于一对锥面之间，所述内侧面的前端朝向前端侧具有较小的宽度; 以及通过激光焊接结合到接地电极的内侧面的排出部分，以获得0.8mm以下的直径和0.5mm以上的高度，并且在排出部和 所述中心电极的前端部。

公开(公告)号：US07550906B2

公开(公告)日：2009-06-23

申请号：US11071202

申请日：2005-03-04

申请人： Osamu Yoshimoto ,  Wataru Matsutani

发明人： Osamu Yoshimoto ,  Wataru Matsutani

IPC分类号： H01T13/20 ,  H01T21/02

CPC分类号： H01T13/39 ,  H01T21/02

摘要： A noble-metal chip (30, 90) joined to at least either a center electrode or a ground electrode, the center and ground electrodes forming a spark discharge gap, and having a circumferential edge of its facing end surface (31, 91) removed so as to form an edge-removed portion (32, 92). The edge-removal length is 0.01 mm or more and a ratio of the edge-removal length to a radius of the noble-metal chip is less than 0.3. The noble-metal chip is made of iridium or an alloy that contains iridium man amount of 70% by weight or more, and crystal grains constituting the noble-metal chip (30, 90) extends in the axial direction. Also disclosed is a method for manufacturing the spark plug.

摘要翻译： 已经连接到中心电极或接地电极中的至少一个的贵金属芯片（30,90），形成火花放电间隙的中心接地电极和接地电极，并且具有其相对端面（31,91）的周向边缘被去除 以形成边缘去除部分（32,92）。 边缘去除长度为0.01mm以上，边缘去除长度与贵金属芯片的半径的比例小于0.3。 贵金属片由铱或含有铱人数为70重量％以上的合金构成，构成贵金属片（30,90）的晶粒沿轴向延伸。 还公开了一种用于制造火花塞的方法。

公开(公告)号：US20090014331A1

公开(公告)日：2009-01-15

申请号：US12170707

申请日：2008-07-10

申请人： Satoshi SUGAYA ,  Hiroyuki Nishiyama ,  Wataru Matsutani ,  Shiro Kakimoto ,  Hitoshi Yokoi

发明人： Satoshi SUGAYA ,  Hiroyuki Nishiyama ,  Wataru Matsutani ,  Shiro Kakimoto ,  Hitoshi Yokoi

IPC分类号： G01N27/26

CPC分类号： G01N33/0054 ,  G01N27/4075 ,  Y02A50/246

摘要： An ammonia gas sensor which includes a solid electrolyte member (310) extending in an axial direction; a reference electrode (320) provided on the solid electrolyte member (310); and a detection electrode (331) and a selective reaction layer (340) provided on the solid electrolyte member (310). The detection electrode serves as a counterpart of the reference electrode (320). The detection electrode (331) contains a noble metal as a predominant component, and the selective reaction layer (340) contains a metal oxide as a predominant component.

摘要翻译： 一种氨气传感器，包括沿轴向延伸的固体电解质构件（310） 设置在固体电解质构件（310）上的参考电极（320）; 以及设置在固体电解质构件（310）上的检测电极（331）和选择性反应层（340）。 检测电极用作参考电极（320）的对应物。 检测电极（331）含有贵金属作为主要成分，选择性反应层（340）含有作为主要成分的金属氧化物。

公开(公告)号：US20080278053A1

公开(公告)日：2008-11-13

申请号：US10571690

申请日：2005-01-27

申请人： Kenichi Kumagai ,  Wataru Matsutani ,  Kenji Kobayashi

发明人： Kenichi Kumagai ,  Wataru Matsutani ,  Kenji Kobayashi

IPC分类号： H01T13/20

CPC分类号： C22C19/056 ,  H01T13/39

摘要： 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.

摘要翻译： 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：US20070080618A1

公开(公告)日：2007-04-12

申请号：US11545490

申请日：2006-10-11

申请人： Kazuyoshi Torii ,  Kazumasa Yoshida ,  Wataru Matsutani

发明人： Kazuyoshi Torii ,  Kazumasa Yoshida ,  Wataru Matsutani

IPC分类号： H01T13/20

CPC分类号： H01T21/02 ,  H01T13/32

摘要： A spark plug comprising: a center electrode extending in a direction of an axis of said spark plug; a cylindrical insulator which has a shaft hole, and which holds said center electrode in said shaft hole in a state where a tip end of said center electrode is projected from a tip end face of said insulator; a metal shell which holds said insulator; and a ground electrode in which one end is joined to a tip end face of said metal shell, and which extends from said one end toward another end, wherein said ground electrode has an inner side face which faces said center electrode, and an outer side face which is a back face with respect to said inner side face, said outer side face is formed as an arcuately curved face when viewed from a side of said another end in an extending direction of said ground electrode, and a columnar noble metal tip is joined to said inner side face.

摘要翻译： 一种火花塞，包括：沿所述火花塞的轴线方向延伸的中心电极; 圆柱形绝缘体，其具有轴孔，并且在所述中心电极的前端从所述绝缘体的前端面突出的状态下将所述中心电极保持在所述轴孔中; 保持所述绝缘体的金属外壳; 以及接地电极，其一端接合到所述金属壳的前端面，并且从所述一端向另一端延伸，其中所述接地电极具有面向所述中心电极的内侧面，外侧 面是相对于所述内侧面的背面，当从所述另一端的侧面沿着所述接地电极的延伸方向观察时，所述外侧面形成为弧形弯曲面，柱状贵金属电极头为 连接到所述内侧面。

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。