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    • 91. 发明授权
    • Method of manufacturing a spark plug having electrode cage secured to the shell
    • 制造具有固定在外壳上的电极笼的火花塞的方法
    • US08388396B2
    • 2013-03-05
    • US12880921
    • 2010-09-13
    • Albert Sam Hill
    • Albert Sam Hill
    • H01T13/20H01T21/02
    • H01T21/02H01T13/20H01T13/28
    • Provided is a manufacturing method for manufacturing a spark plug which produces a spark plug which mitigates misfire and improves gas mileage, peak engine performance, horsepower, and increases the RPM range of the host vehicle. The improved performance of the spark plug is, at least in part, attributable to the spacing between an electrode body and an electrode cage. In particular, the electrode cage extends over the electrode body such that the arcuate members of the electrode cage are equidistantly spaced from the bulbous or spherical electrode body. The manufacturing method described herein results in a spark plug having the above-described configuration, while being formed and assembled at an economical cost.
    • 提供一种制造火花塞的制造方法,该火花塞产生火花塞,其减轻失火,提高燃油里程,发动机性能峰值,马力,并增加主车辆的RPM范围。 火花塞的改进的性能至少部分地归因于电极体和电极笼之间的间隔。 特别地,电极保持架延伸到电极体上,使得电极笼的弧形构件与球形或球形电极体等距离地间隔开。 这里描述的制造方法导致具有上述构造的火花塞,同时以经济的成本形成和组装。
    • 93. 发明申请
    • SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING THE SPARK PLUG
    • 用于内燃机的火花塞和制造火花塞的方法
    • US20130038198A1
    • 2013-02-14
    • US13641611
    • 2011-04-15
    • Kazuyoshi ToriiAkira SuzukiMamoru Musasa
    • Kazuyoshi ToriiAkira SuzukiMamoru Musasa
    • H01T13/39H01T21/02
    • H01T13/39H01T13/32H01T21/02
    • A spark plug includes a center electrode, a ground electrode, and a noble metal tip. The noble metal tip is joined to an object member of at least one of two electrodes via a fusion zone. A projected overlap region of the noble metal tip and the fusion zone accounts for 70% or more of a projected region of the noble metal tip. The object member contains at least Si out of Al and Si such that the amount of Si is 0.4% by mass or higher and such that the total amount of Al and Si is 0.5% by mass. Multi-fusion spots exist on the surface of the fusion zone. Segments of a baseline which pass through the respective multi-fusion spots have a total length of a predetermined percentage of the length of the baseline. Joining strength to the noble metal tip can thereby be greatly improved when the member to be joined contains Si.
    • 火花塞包括中心电极,接地电极和贵金属电极头。 贵金属端头通过熔融区域与两个电极中的至少一个的目标构件接合。 贵金属端头和熔融区域的突出重叠区域占贵金属电极头的投影区域的70%以上。 目标构件至少包含Al和Si中的Si,使得Si的量为0.4质量%以上,并且使Al和Si的总量为0.5质量%。 融合区表面存在多个融合点。 通过相应的多融合点的基线段具有基线长度的预定百分比的总长度。 因此,当待接合部件含有Si时,能够大大提高与贵金属电极头的接合强度。
    • 94. 发明授权
    • Spark plug
    • 火花塞
    • US08354782B2
    • 2013-01-15
    • US13061991
    • 2010-07-12
    • Nobuaki SakayanagiKatsutoshi Nakayama
    • Nobuaki SakayanagiKatsutoshi Nakayama
    • H01T13/20
    • H01T21/02H01T13/39
    • Separation of a noble metal tip is prevented and wear resistance is enhanced, while the increase in manufacturing cost is suppressed. A spark plug 1 includes a center electrode 5 and a noble metal tip 31. The center electrode 5 and the noble metal tip 31 are joined to each other through a molten portion 35. An area of an interface between the noble metal tip 31 and the center electrode 5 is set to be 5% or less with respect to a cross-sectional area of the noble metal tip 31 which is perpendicular to an axial line CL1 at a portion of an outer surface of the noble metal tip 31 which is nearest to the molten portion 35. In the cross section including the axial line CL1, supposing that a length of the portion of the molten portion 35 in the axial line CL1 which is exposed to the outer surface is A (mm), and a width of the noble metal tip 31 is B (mm), B/A≦6 is satisfied. The portion of the molten portion 35, of which a length along the axial line CL1 is A/1.5, is located further outwards radially than a position which comes in by as much as B/4 from the outer circumference of the noble metal tip 31.
    • 防止贵金属端头的分离,并且抑制了制造成本的增加,从而提高了耐磨性。 火花塞1包括中心电极5和贵金属电极头31.中心电极5和贵金属电极头31通过熔融部分35相互连接。贵金属电极头31和贵金属电极头31之间的界面区域 中心电极5相对于贵金属电极头31的与贵金属电极头31的外表面的最接近的部分垂直的轴线CL1的横截面面积设定为5%以下 熔融部分35.在包括轴线CL1的横截面中,假设暴露于外表面的轴线CL1中的熔融部分35的部分的长度为A(mm),宽度为 贵金属端头31是B(mm),B / A& nlE; 6。 沿轴线CL1的长度为A / 1.5的熔融部分35的部分比从贵金属电极头31的外圆周方向进入B / 4的位置更向外径向 。
    • 96. 发明授权
    • Spark plug and manufacturing method therefor
    • 火花塞及其制造方法
    • US08344605B2
    • 2013-01-01
    • US13127196
    • 2009-11-05
    • Takahiro SuzukiTomoaki Kato
    • Takahiro SuzukiTomoaki Kato
    • H01T13/20H01T21/00
    • H01T21/02H01T13/32H01T13/39
    • Provided are a spark plug in which the occurrence of spark blowout or the like is restrained for improvement of ignition performance, and a method of manufacturing the spark plug. A ground electrode (27 ) of the spark plug has a protrusion (28 ) which faces a center electrode (5). The distal end surface of the protrusion (28) has a noble metal tip (32) provided at the center thereof and includes an annular fusion portion (33) adjacent to the periphery of the noble metal tip (32), and an annular electrode base metal surface located externally of the annular fusion portion (33). A spark discharge gap (35) is formed between the center electrode (5) and the distal end of the protrusion (28) including the noble metal tip (32).
    • 提供了一种火花塞,其中抑制火花喷吹等的发生以提高点火性能,以及制造火花塞的方法。 火花塞的接地电极(27)具有面向中心电极(5)的突起(28)。 突起(28)的前端面具有设置在其中心的贵金属端头(32),并且包括与贵金属电极头(32)的周围相邻的环形熔接部(33),以及环状电极基体 金属表面位于环形熔融部分(33)的外部。 在中心电极(5)和包括贵金属电极头(32)的突起(28)的远端之间形成火花放电间隙(35)。