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公开(公告)号：US08866370B2
公开(公告)日：2014-10-21
申请号：US13516874
申请日：2011-01-19
申请人： Tsutomu Shibata , Takaaki Kikai , Kenji Nunome , Osamu Yoshimoto
发明人： Tsutomu Shibata , Takaaki Kikai , Kenji Nunome , Osamu Yoshimoto
摘要： A spark plug including a center electrode and a ground electrode having a core portion and an outer layer covering the core portion, the core portion being formed from a material having a thermal conductivity higher than that of the outer layer. At least a portion in which thickness of the outer layer is 0.5 mm or less is present at a cross-section perpendicular to a direction in which the ground electrode is extended. Further, the composition of the electrode material forming the outer layer is as follows: Ni is 96 mass % or more, total of at least one kind selected from Y and rare earth elements is 0.05 mass % or more, Al is 0.5 mass % or less, and Si is 0.5 mass % or more and 1.5 mass % or less, where the total of Ni, Y, rare earth elements, Al, Si does not exceed 100 mass %.
摘要翻译： 一种火花塞，其包括中心电极和接地电极，所述接地电极具有芯部和覆盖所述芯部的外层，所述芯部由导热率高于外层的材料形成。 在与接地电极延伸的方向垂直的截面上存在至少一部分外层的厚度为0.5mm以下的部分。 此外，形成外层的电极材料的组成如下：Ni为96质量％以上，选自Y和稀土元素中的至少一种的总和为0.05质量％以上，Al为0.5质量％以上 较少，Si为0.5质量％以上且1.5质量％以下，其中，Ni，Y，稀土类元素Al，Si的合计量不超过100质量％。
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公开(公告)号：US08664842B2
公开(公告)日：2014-03-04
申请号：US13515627
申请日：2011-01-11
申请人： Tomoo Tanaka , Tsutomu Shibata , Osamu Yoshimoto , Takaaki Kikai , Takehito Kuno , Kenji Nunome
发明人： Tomoo Tanaka , Tsutomu Shibata , Osamu Yoshimoto , Takaaki Kikai , Takehito Kuno , Kenji Nunome
摘要： A spark plug including a center electrode and a ground electrode having a gap between the center electrode and the ground electrode, the ground electrode has an outer layer which is formed from an Ni-based alloy and a core portion which is covered by the outer layer and formed from a material having a thermal conductivity higher than that of the outer layer. Further, the melting point of the Ni-based alloy forming the outer layer is 1150° C. or more and 1350° C. or less.
摘要翻译： 一种火花塞，其包括中心电极和接地电极，所述接地电极在所述中心电极和所述接地电极之间具有间隙，所述接地电极具有由Ni基合金形成的外层和被所述外层覆盖的芯部分 并且由具有高于外层的热导率的材料形成。 此外，形成外层的Ni系合金的熔点为1150℃以上且1350℃以下。
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公开(公告)号：US20120256530A1
公开(公告)日：2012-10-11
申请号：US13516874
申请日：2011-01-19
申请人： Tsutomu Shibata , Takaaki Kikai , Kenji Nunome , Osamu Yoshimoto
发明人： Tsutomu Shibata , Takaaki Kikai , Kenji Nunome , Osamu Yoshimoto
IPC分类号： H01T13/39
摘要： A spark plug including a center electrode and a ground electrode having a core portion and an outer layer covering the core portion, the core portion being formed from a material having a thermal conductivity higher than that of the outer layer. At least a portion in which thickness of the outer layer is 0.5 mm or less is present at a cross-section perpendicular to a direction in which the ground electrode is extended. Further, the composition of the electrode material forming the outer layer is as follows: Ni is 96 mass % or more, total of at least one kind selected from Y and rare earth elements is 0.05 mass % or more, Al is 0.5 mass % or less, and Si is 0.5 mass % or more and 1.5 mass % or less, where the total of Ni, Y, rare earth elements, Al, Si does not exceed 100 mass %.
摘要翻译： 一种火花塞，其包括中心电极和接地电极，所述接地电极具有芯部和覆盖所述芯部的外层，所述芯部由导热率高于外层的材料形成。 在与接地电极延伸的方向垂直的截面上存在至少一部分外层的厚度为0.5mm以下的部分。 此外，形成外层的电极材料的组成如下：Ni为96质量％以上，选自Y和稀土元素中的至少一种的总和为0.05质量％以上，Al为0.5质量％以上 较少，Si为0.5质量％以上且1.5质量％以下，其中，Ni，Y，稀土类元素Al，Si的合计量不超过100质量％。
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公开(公告)号：US20120293061A1
公开(公告)日：2012-11-22
申请号：US13515627
申请日：2011-01-11
申请人： Tomoo Tanaka , Tsutomu Shibata , Osamu Yoshimoto , Takaaki Kikai , Takehito Kuno , Kenji Nunome
发明人： Tomoo Tanaka , Tsutomu Shibata , Osamu Yoshimoto , Takaaki Kikai , Takehito Kuno , Kenji Nunome
IPC分类号： H01T13/39
摘要： A spark plug including a center electrode and a ground electrode having a gap between the center electrode and the ground electrode, the ground electrode has an outer layer which is formed from an Ni-based alloy and a core portion which is covered by the outer layer and formed from a material having a thermal conductivity higher than that of the outer layer. Further, the melting point of the Ni-based alloy forming the outer layer is 1150° C. or more and 1350° C. or less.
摘要翻译： 一种火花塞，其包括中心电极和接地电极，所述接地电极在所述中心电极和所述接地电极之间具有间隙，所述接地电极具有由Ni基合金形成的外层和被所述外层覆盖的芯部分 并且由具有高于外层的热导率的材料形成。 此外，形成外层的Ni系合金的熔点为1150℃以上且1350℃以下。
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公开(公告)号：US20060043855A1
公开(公告)日：2006-03-02
申请号：US10519075
申请日：2004-03-22
IPC分类号： H01T13/02
CPC分类号： H01T13/39 , B22F2998/10 , C22C1/0466 , B22F3/02 , B22F3/15
摘要： An object of the invention is to provide a higher-durability spark plug provided with a center electrode and a side electrode to form a spark discharge gap between the center electrode and the side electrode, at least one of the center electrode and the side electrode including a precious metal member facing the spark discharge gap, in which a sweating phenomenon of the precious metal member can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the precious metal member can be suppressed. In the invention, the spark plug (100) comprises a center electrode (3), and a side electrode (4) located on one side of the center electrode (3) so that a spark discharge gap (G) is formed between the center electrode (3) and the side electrode (4). The center electrode (3) and the side electrode (4) include first and second precious metal tips (33) and (43) respectively. The first and second precious metal tips (33) and (43) face the spark discharge gap (G) so that the spark discharge gap (G) is formed. The precious metal tips (33) and so on contain Ir as a main component, 0.3 mass % to 43 mass % of Rh, 5.2 mass % to 41 mass % of Ru, and 0.4 mass % to 19 mass % of Ni.
摘要翻译： 本发明的目的是提供一种具有中心电极和侧电极的高耐久性火花塞，以在中心电极和侧电极之间形成火花放电间隙，至少一个中心电极和侧电极包括 面对火花放电间隙的贵金属构件可以抑制贵金属构件的出汗现象，同时可以抑制贵金属构件的火花磨损，氧化磨损和异常磨损。 在本发明中，火花塞（100）包括中心电极（3）和位于中心电极（3）一侧的侧电极（4），使得在中心电极（3）之间形成火花放电间隙（G） 电极（3）和侧电极（4）。 中心电极（3）和侧电极（4）分别包括第一和第二贵金属尖端（33）和（43）。 第一和第二贵金属端头（33）和（43）面对火花放电间隙（G），从而形成火花放电间隙（G）。 贵金属制头（33）等含有Ir为主成分，Rh为0.3质量％〜43质量％，Ru为5.2质量％〜41质量％，Ni为0.4质量％〜19质量％。
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公开(公告)号：US08164242B2
公开(公告)日：2012-04-24
申请号：US12167387
申请日：2008-07-03
申请人： Osamu Yoshimoto , Kenji Nunome , Yoshihiro Nakai , Taichiro Nishikawa , Toru Tanji , Kazuo Yamazaki
发明人： Osamu Yoshimoto , Kenji Nunome , Yoshihiro Nakai , Taichiro Nishikawa , Toru Tanji , Kazuo Yamazaki
摘要： A spark plug (100) includes: a center electrode (2); and a ground electrode (30) which is to be exposed in a combustion chamber of an internal combustion engine and which forms a spark discharge gap with the center electrode (2), wherein at least one of the center electrode (20) and the ground electrode (30) contains an electrode material whose principal component is Ni and in which an intermetallic compound is precipitated at least intergranularly and intragranularly.
摘要翻译： 火花塞（100）包括：中心电极（2）; 以及将暴露在内燃机的燃烧室中并与中心电极（2）形成火花放电间隙的接地电极（30），其中中心电极（20）和地面中的至少一个 电极（30）包含主要成分为Ni的电极材料，其中金属间化合物至少在晶间和晶间析出。
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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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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：US07279827B2
公开(公告)日：2007-10-09
申请号：US10519075
申请日：2004-03-22
IPC分类号： H01T13/20
CPC分类号： H01T13/39 , B22F2998/10 , C22C1/0466 , B22F3/02 , B22F3/15
摘要： An object of the invention is to provide a higher-durability spark plug provided with a center electrode and a side electrode. At least one of the center electrode and the side electrode includes a precious metal member facing a spark discharge gap between the electrodes. A sweating phenomenon of the precious metal member can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the precious metal member are suppressed. The precious metal member contains Ir as a main component, and smaller amounts of Rh, Ru, and Ni.
摘要翻译： 本发明的目的是提供一种设置有中心电极和侧面电极的耐久性更高的火花塞。 中心电极和侧面电极中的至少一个包括面对电极之间的火花放电间隙的贵金属构件。 可以抑制贵金属构件的出汗现象，同时抑制贵金属构件的火花磨损，氧化磨损和异常磨损。 贵金属构件含有Ir作为主要成分，较少量的Rh，Ru，Ni。
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公开(公告)号：US08283846B2
公开(公告)日：2012-10-09
申请号：US13259219
申请日：2010-10-15
CPC分类号： H01T13/39 , C22C19/058
摘要： The object of the invention is to provide a spark plug including a central electrode and/or a ground electrode with a gap, which can suppress generation of corrosion-like generated foreign substances while maintaining high thermal conductivity and high strength. The gap between the central electrode and the ground electrode with at least one of the central electrode and the ground electrode formed from an electrode material including 96% by mass or more of Ni, in which the electrode material includes a total content of from 0.05% by mass to 0.45% by mass of at least one selected from a group consisting of Y and rare earth elements, 0.05% by mass or more of Mn, and a total content of 0.01% by mass or more of at least one selected from a group consisting of Ti, V, and Nb, and the ratio (a/b) of the total content (a) of Ti, V, and Nb to the content (b) of Mn is from 0.02 to 0.40.
摘要翻译： 本发明的目的是提供一种火花塞，其包括具有间隙的中心电极和/或接地电极，其可以在保持高导热性和高强度的同时抑制腐蚀状产生的异物的产生。 中心电极和接地电极之间的间隙由中心电极和接地电极中的至少一个由包含96质量％以上的Ni的电极材料形成，其中电极材料的总含量为0.05％ 以质量计至0.45质量％的选自Y和稀土元素中的至少一种，Mn为0.05质量％以上，总含量为0.01质量％以上的至少一种选自 由Ti，V和Nb组成的组中，Ti，V和Nb的总含量（a）与Mn的含量（b）的比（a / b）为0.02〜0.40。
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