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31.发明授权
公开(公告)号：US6095124A
公开(公告)日：2000-08-01
申请号：US144850
申请日：1998-09-01
CPC分类号： H01T13/52
摘要： A spark plug having a center electrode, a ground electrode, and an insulator. The ground electrode has a firing surface formed in a tip end side, and the firing surface is opposed to a side face of the center electrode. The insulator covers the outside of the center electrode and is placed such that a tip end portion is between the side face of the center electrode and the firing surface of the ground electrode. A discharge high voltage is applied across the center electrode and the ground electrode such that a polarity of the center electrode is positive and that of the ground electrode is negative. The high voltage causes a spark discharge to be generated between the firing surface of the ground electrode and a tip end portion of the center electrode.
摘要翻译： 具有中心电极，接地电极和绝缘体的火花塞。 接地电极具有形成在前端侧的烧成面，并且烧成面与中心电极的侧面相对。 绝缘体覆盖中心电极的外侧，并且配置成使得前端部位于中心电极的侧面和接地电极的点火面之间。 在中心电极和接地电极之间施加放电高电压，使得中心电极的极性为正，而接地电极的极性为负。 高电压在接地电极的点火面和中心电极的前端部之间产生火花放电。
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公开(公告)号：US5866972A
公开(公告)日：1999-02-02
申请号：US784516
申请日：1997-01-17
申请人： Yoshihiro Matsubara , Hiroshi Ono
发明人： Yoshihiro Matsubara , Hiroshi Ono
CPC分类号： H01T13/39
摘要： In a spark plug for use for an internal combustion engine, an elongated insulator is provided in which a center electrode is supported. A cylindrical metal shell is provided in which the insulator is supported, and a ground electrode extends from the metal shell to form a spark gap with a front end of the center electrode. The front end of the center electrode has a tapered-off step section whose front end surface has a spark erosion resistant portion, and having a boundary between a columnar portion of the center electrode and the tapered-off step section. The boundary of the tapered-off step section is located within a front end surface of the insulator, and a front end surface of the tapered-off step section is positioned outside of the front end surface of the insulator. The front end of the center electrode forms a conoidal configuration having an apex angle formed at the center of the center electrode, circumscribing a front periphery of the insulator while maintaining an apex angle of 110 degrees or less.
摘要翻译： 在用于内燃机的火花塞中，提供了中心电极被支撑的细长绝缘体。 提供了一种圆柱形金属外壳，其中绝缘体被支撑，并且接地电极从金属外壳延伸以与中心电极的前端形成火花隙。 中心电极的前端具有锥形切割台阶部，其前端面具有耐火花腐蚀部分，并且在中心电极的柱状部分与锥形阶梯部分之间具有边界。 锥形阶梯部分的边界位于绝缘体的前端表面内，并且渐缩阶梯部分的前端表面位于绝缘体的前端表面的外侧。 中心电极的前端形成具有形成在中心电极的中心处的顶角的圆锥形构造，在保持110度或更小的顶角的同时限制绝缘体的前周边。
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公开(公告)号：US5680002A
公开(公告)日：1997-10-21
申请号：US592693
申请日：1996-01-26
申请人： Iwao Kunitomo , Yoshihiro Matsubara , Kozo Amano
发明人： Iwao Kunitomo , Yoshihiro Matsubara , Kozo Amano
CPC分类号： H01T13/467
摘要： In a multi-polarity type spark plug for an internal combustion engine, a tubular insulator is supported within a cylindrical metallic shell through which a spark plug is to be attached to an internal combustion engine. A center electrode is placed within the insulator, a front end of the center electrode being directed toward a combustion chamber of the internal combustion engine from a front end of the metallic shell so as to extend beyond a front end of the insulator. First and second ground electrodes are each connected to the front end of the metallic shell, the first ground electrode forming a first vertical spark gap with a front end surface of the center electrode which directly opposes an elevational side of the center electrode, and the second ground electrode forming a second horizontal spark gap with an elevational side of the center electrode. An angle .theta.a is limited as 60.degree..ltoreq..theta.a .ltoreq.150.degree. in which the angle .theta.a is taken when the first ground electrode forms against the second ground electrode with the center electrode as an axial center.
摘要翻译： 在用于内燃机的多极型火花塞中，管状绝缘体被支撑在圆筒形的金属外壳内，火花塞将通过该外壳连接到内燃机。 中心电极放置在绝缘体内，中心电极的前端从金属壳的前端引导到内燃机的燃烧室，以便延伸超过绝缘体的前端。 第一接地电极和第二接地电极各自连接到金属壳体的前端，第一接地电极形成第一垂直火花隙，其中心电极的前端表面与中心电极的正面相对，第二接地电极 接地电极与中心电极的正面形成第二水平火花间隙。 角度θ被限制为60°θ<150°，其中当第一接地电极与中心电极作为轴向中心与第二接地电极形成时，取得角度θa。
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34.再颁专利Method for manufacturing noble metal electric discharge chips for spark plugs 有权用于制造用于火花塞的贵金属放电芯片的方法公开(公告)号：USRE41944E1
公开(公告)日：2010-11-23
申请号：US12257543
申请日：2008-10-24
CPC分类号： B21F45/00 , B21C37/045 , H01T13/39 , H01T21/02 , Y10S72/70 , Y10T29/49117 , Y10T29/49204 , Y10T29/49989 , Y10T29/49991 , Y10T29/5195
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07382084B2
公开(公告)日：2008-06-03
申请号：US10514786
申请日：2004-03-22
IPC分类号： H01T13/20
CPC分类号： C22C5/04 , C22C1/0466 , C22C32/0021 , H01T13/39
摘要： An object of the invention is to provide a spark plug having a discharge portion made of a precious metal tip, in which peeling of the precious metal tip from a surface of the discharge portion can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the discharge portion can be suppressed.
摘要翻译： 本发明的目的是提供一种火花塞，其具有由贵金属端头构成的排出部分，其中可以抑制贵金属尖端从排出部分的表面的剥离，同时具有火花磨损，氧化磨损和异常磨损 可以抑制排出部。
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36.发明授权Method for manufacturing noble metal electric discharge chips for spark plugs 有权用于制造用于火花塞的贵金属放电芯片的方法公开(公告)号：US07131191B2
公开(公告)日：2006-11-07
申请号：US10823662
申请日：2004-04-14
CPC分类号： B21F45/00 , B21C37/045 , H01T13/39 , H01T21/02 , Y10S72/70 , Y10T29/49117 , Y10T29/49204 , Y10T29/49989 , Y10T29/49991 , Y10T29/5195
摘要： 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.
摘要翻译： 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的截面积的线材的拉丝工艺中， / SUP>且不大于1.2mm 2。 加工材料在与工件102移动的方向相反的方向上从模具101的工件插入表面101a延伸到加热区域103的加热区域103中持续加热和/或白热，加热的工件 在从工件插入表面101a移除20mm的温度测量位置105处为1000至1150℃的温度。 此外，将从温度测量位置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。
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公开(公告)号：US20060061250A1
公开(公告)日：2006-03-23
申请号：US10514786
申请日：2004-03-22
IPC分类号： H01T13/20
CPC分类号： C22C5/04 , C22C1/0466 , C22C32/0021 , H01T13/39
摘要： An object of the invention is to provide a spark plug having a discharge portion made of a precious metal tip, in which peeling of the precious metal tip from a surface of the discharge portion can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the discharge portion can be suppressed. The invention comprises a center electrode (3), and a ground electrode (4) disposed so that its side surface is opposite to a leading end portion of the center electrode (3), characterized in that: a center electrode-side precious metal tip (31′) or a ground electrode-side precious metal tip (32′) is welded to at least one of the center electrode (3) and the ground electrode (4) to thereby form a center electrode-side discharge portion (31) having a center electrode-side discharge-surface (31t) or a ground electrode-side discharge portion (32) having a ground electrode-side discharge surface (32t) in a position opposite to a spark discharge gap g; and the center electrode-side precious metal tip (31′) or the ground electrode-side precious metal tip (32′) contains Ir as a main component, Rh, and Ni and further contains at least one of Pt and Pd.
摘要翻译： 本发明的目的是提供一种火花塞，其具有由贵金属端头构成的排出部分，其中可以抑制贵金属尖端从排出部分的表面的剥离，同时具有火花磨损，氧化磨损和异常磨损 可以抑制排出部。
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公开(公告)号：US06617706B2
公开(公告)日：2003-09-09
申请号：US09435368
申请日：1999-11-08
申请人： Yoshihiro Matsubara , Akio Kokubu , Kazumasa Yoshida , Makoto Yamaguchi , Kazuya Iwata , Shoichiro Ito , Hiroshi Ono
发明人： Yoshihiro Matsubara , Akio Kokubu , Kazumasa Yoshida , Makoto Yamaguchi , Kazuya Iwata , Shoichiro Ito , Hiroshi Ono
IPC分类号： H01T1302
CPC分类号： H01T13/39 , H01T13/467
摘要： An ignition system has a spark plug and a positive voltage applying unit. The spark plug includes a central electrode, a porcelain insulator for holding the central electrode, a main metallic shell for holding the porcelain insulator, and a ground electrode electrically connected to the main metallic shell. The positive voltage applying unit applies a positive voltage to the central electrode of the spark plug in comparison with the ground electrode, so that an ignition high voltage is applied between the central electrode and the ground electrode. In the spark plug, a spark discharge gap is formed between the ground electrode and a distal end portion of the central electrode. The ground electrode is positioned so that a rear edge of a mating face opposed to a peripheral side of the central electrode is positioned in the side of the distal end of the central electrode in comparison with an end face of the porcelain insulator.
摘要翻译： 点火系统具有火花塞和正电压施加单元。 火花塞包括中心电极，用于保持中心电极的瓷绝缘体，用于保持瓷绝缘体的主金属壳，以及与主金属壳电连接的接地电极。 正电压施加单元与接地电极相比，向火花塞的中心电极施加正电压，从而在中心电极和接地电极之间施加点火高电压。 在火花塞中，在接地电极和中心电极的远端部分之间形成火花放电间隙。 接地电极的定位使得与瓷绝缘体的端面相比，与中心电极的周边相对的配合面的后边缘位于中心电极的远端侧。
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公开(公告)号：US06536406B2
公开(公告)日：2003-03-25
申请号：US09790868
申请日：2001-02-23
申请人： Yoshihiro Matsubara , Kenji Ishida
发明人： Yoshihiro Matsubara , Kenji Ishida
IPC分类号： F02P1508
摘要： An ignition system for an internal combustion engine. At least one of a plurality of spark plugs 4 and 5 attached to each of cylinders 2A, 2B, 3B, and 3A is a self-cleaning spark plug A.
摘要翻译： 一种用于内燃机的点火系统。 安装在缸体2A，2B，3B和3A中的多个火花塞4和5中的至少一个是自清洁火花塞A.
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公开(公告)号：US06229253B1
公开(公告)日：2001-05-08
申请号：US09329311
申请日：1999-06-10
IPC分类号： H01T1320
CPC分类号： H01T13/467 , H01T13/32
摘要： In a spark plug, a main air gap (A) is formed between a parallel ground electrode (11) and the end face of a central electrode (2), a semi-surface gap (B) is formed between the end face (12C) of a semi-surface ground electrode (12) and the side face (2A) of the central electrode (2) and a semi-surface air gap (C) is formed between the end face (12C) and the side face (1E) of insulator. In addition, difference in a level E between the height of the lower end face (1D) of the insulator (1) and the height of the upper edge (12B) of the end face 12C of the semi-surface ground electrode 12 is E≦+0.7 mm, the distance B of the semi-surface gap (B) is longer than the distance A of the main air gap (A) and the distance C of the semi-surface air gap (C) and the insulator is shorter than the distance A of the main air gap (A).
摘要翻译： 在火花塞中，在平行接地电极（11）和中心电极（2）的端面之间形成有主气隙（A），在端面（12C）之间形成有半面间隙 ）和半平面气隙（C）之间形成半面接地电极（12）和中心电极（2）的侧面（2A）和半面空气间隙（C） ）绝缘子。 此外，绝缘体（1）的下端面（1D）的高度与半表面接地电极12的端面12C的上边缘（12B）的高度之间的电平差E为E 半面间隙（B）的距离B比主气隙（A）的距离A和半表面气隙（C）的距离C以及绝缘体的距离 短于主气隙（A）的距离A.
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