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1. 发明授权

US06653767B2 Spark plug and ignition apparatus 有权
标题翻译：火花塞和点火装置
公开(公告)号：US06653767B2
公开(公告)日：2003-11-25
申请号：US09960514
申请日：2001-09-24
申请人： Hitoshi Morita , Shinichi Okabe , Takehiko Kato , Hiroshi Yorita , Keiji Kanao , Tetsuya Miwa
发明人： Hitoshi Morita , Shinichi Okabe , Takehiko Kato , Hiroshi Yorita , Keiji Kanao , Tetsuya Miwa
IPC分类号： H01T1320
CPC分类号： H01T13/39 , H01T13/20
摘要： At least one of a center electrode tip and a ground electrode tip is made of an iridium alloy. A discharge gap, formed between the center electrode tip and the ground electrode tip, is less than 1.1 mm. And, cross sections of the center electrode tip and the ground electrode tip are equal to or smaller than 0.95 mm2 in a spherical region where a distance from a midpoint of the discharge gap is within 0.6 mm.
摘要翻译：中心电极尖端和接地电极尖端中的至少一个由铱合金制成。形成在中心电极尖端和接地电极尖端之间的放电间隙小于1.1mm。并且，在距离放电间隙的中点的距离在0.6mm以内的球面区域中，中心电极端部和接地电极端部的截面为0.95mm 2以下。

2. 发明授权

US06844662B2 Spark plug and ignition apparatus 有权
标题翻译：火花塞和点火装置
公开(公告)号：US06844662B2
公开(公告)日：2005-01-18
申请号：US10661568
申请日：2003-09-15
申请人： Hitoshi Morita , Shinichi Okabe , Takehiko Kato , Hiroshi Yorita , Keiji Kanao , Tetsuya Miwa
发明人： Hitoshi Morita , Shinichi Okabe , Takehiko Kato , Hiroshi Yorita , Keiji Kanao , Tetsuya Miwa
IPC分类号： F02P13/00 , H01T13/20 , H01T13/32 , H01T13/39
CPC分类号： H01T13/39 , H01T13/20
摘要： At least one of a center electrode tip and a ground electrode tip is made of an iridium alloy. A discharge gap, formed between the center electrode tip and the ground electrode tip, is less than 1.1 mm. And, cross sections of the center electrode tip and the ground electrode tip are equal to or smaller than 0.95 mm2 in a spherical region where a distance from a midpoint of the discharge gap is within 0.6 mm.
摘要翻译：中心电极尖端和接地电极尖端中的至少一个由铱合金制成。形成在中心电极尖端和接地电极尖端之间的放电间隙小于1.1mm。并且，在距离放电间隙的中点的距离在0.6mm以内的球面区域中，中心电极端部和接地电极端部的截面为0.95mm 2以下。

3. 发明授权

US07267116B2 Spark plug and ignition apparatus using same 有权
标题翻译：火花塞和点火装置使用相同
公开(公告)号：US07267116B2
公开(公告)日：2007-09-11
申请号：US10073255
申请日：2002-02-13
申请人： Tetsuya Miwa , Tohru Yoshinaga , Keiji Kanao , Shinichi Okabe
发明人： Tetsuya Miwa , Tohru Yoshinaga , Keiji Kanao , Shinichi Okabe
IPC分类号： H01F38/12 , H01F38/00
CPC分类号： H01T13/32 , H01T13/20 , H01T13/39
摘要： A power-saving type of ignition apparatus is provided with a spark plug of which electrodes (30, 40) are regulated in their shapes to lower an amount of energy required for its ignition. To face to a tip (31) of a center electrode (30) extending from a mounting bracket (10), a cylindrical protrusion (41) is built on one surface (43) of an earth electrode (40). The protrusion extends toward the center electrode to form a discharge gap (50) between the protrusion and the tip of the center electrode. Both of the tip of the center electrode and the protrusion of the earth electrode are 2.3 [mm] or less in each diameter (D1, D2), thus an amount of energy required for ignition being limited to 17 [mJ] or less.
摘要翻译：节电型点火装置设置有火花塞，其电极（30,40）的形状被调节以降低其点火所需的能量。为了面对从安装支架（10）延伸的中心电极（30）的尖端（31），在接地电极（40）的一个表面（43）上形成有圆筒状突起（41）。突出部朝向中心电极延伸，以在突起和中心电极的尖端之间形成放电间隙（50）。中心电极的尖端和接地电极的突起在每个直径（D 1，D 2）中为2.3 [mm]以下，因此点火所需的能量量限制在17 [mJ]以下。

4. 发明申请

US20050016485A1 Spark plug and ignition apparatus using same 有权
标题翻译：火花塞和点火装置使用相同
公开(公告)号：US20050016485A1
公开(公告)日：2005-01-27
申请号：US10926003
申请日：2004-08-26
申请人： Tetsuya Miwa , Tohru Yoshinaga , Keiji Kanao , Shinichi Okabe
发明人： Tetsuya Miwa , Tohru Yoshinaga , Keiji Kanao , Shinichi Okabe
IPC分类号： F02P13/00 , H01T13/20 , H01T13/32 , H01T13/39 , H01T13/40
CPC分类号： H01T13/32 , H01T13/20 , H01T13/39
摘要： A power-saving type of ignition apparatus is provided with a spark plug of which electrodes (30, 40) are regulated in their shapes to lower an amount of energy required for its ignition. To face to a tip (31) of a center electrode (30) extending from a mounting bracket (10), a cylindrical protrusion (41) is built on one surface (43) of an earth electrode (40). The protrusion extends toward the center electrode to form a discharge gap (50) between the protrusion and the tip of the center electrode. Both of the tip of the center electrode and the protrusion of the earth electrode are 2.3 [mm] or less in each diameter (D1, D2), thus an amount of energy required for ignition being limited to 17 [mJ] or less.
摘要翻译：节电型点火装置设置有火花塞，其电极（30,40）的形状被调节以降低其点火所需的能量。为了面对从安装支架（10）延伸的中心电极（30）的尖端（31），在接地电极（40）的一个表面（43）上形成有圆筒状突起（41）。突出部朝向中心电极延伸，以在突起和中心电极的尖端之间形成放电间隙（50）。中心电极的尖端和接地电极的突起在每个直径（D1，D2）中为2.3 [mm]以下，因此点火所需的能量量限制在17 [mJ]以下。

5. 发明授权

US07086363B2 Spark plug and ignition apparatus using same 有权
标题翻译：火花塞和点火装置使用相同
公开(公告)号：US07086363B2
公开(公告)日：2006-08-08
申请号：US10926003
申请日：2004-08-26
申请人： Tetsuya Miwa , Tohru Yoshinaga , Keiji Kanao , Shinichi Okabe
发明人： Tetsuya Miwa , Tohru Yoshinaga , Keiji Kanao , Shinichi Okabe
IPC分类号： F02P1/00
CPC分类号： H01T13/32 , H01T13/20 , H01T13/39
摘要： A power-saving type of ignition apparatus is provided with a spark plug of which electrodes (30, 40) are regulated in their shapes to lower an amount of energy required for its ignition. To face to a tip (31) of a center electrode (30) extending from a mounting bracket (10), a cylindrical protrusion (41) is built on one surface (43) of an earth electrode (40). The protrusion extends toward the center electrode to form a discharge gap (50) between the protrusion and the tip of the center electrode. Both of the tip of the center electrode and the protrusion of the earth electrode are 2.3 [mm] or less in each diameter (D1, D2), thus an amount of energy required for ignition being limited to 17 [mJ] or less.
摘要翻译：节电型点火装置设置有火花塞，其电极（30,40）的形状被调节以降低其点火所需的能量。为了面对从安装支架（10）延伸的中心电极（30）的尖端（31），在接地电极（40）的一个表面（43）上形成有圆筒状突起（41）。突出部朝向中心电极延伸，以在突起和中心电极的尖端之间形成放电间隙（50）。中心电极的尖端和接地电极的突起在每个直径（D 1，D 2）为2.3 [mm]以下，因此点火所需的能量量被限制在17 [mJ]以下。

6. 发明授权

US07282844B2 High performance, long-life spark plug 有权
标题翻译：高性能，长寿命的火花塞
公开(公告)号：US07282844B2
公开(公告)日：2007-10-16
申请号：US10937374
申请日：2004-09-10
申请人： Keiji Kanao , Shinichi Okabe
发明人： Keiji Kanao , Shinichi Okabe
IPC分类号： H01T13/20
CPC分类号： H01T13/39
摘要： A spark plug includes a metal shell, an insulator, a center electrode, a ground electrode, a first noble metal chip, and a second noble metal chip. The metal shell has a threaded portion with an outer diameter of equal to or less than 14 mm for installing the spark plug to an internal combustion engine. The parameters in the structure of the spark plug, such as an end surface area S of the first noble metal chip, a length A of the first noble metal chip, an end surface area Q of the second noble metal chip, a length B of the second noble metal chip, an air pocket size L, a space G of a spark gap, a ratio L/G, and a thickness T of the insulator, have suitable dimensional ranges determined through experimental investigation. The structure ensures high performance and a long service life for the spark plug.
摘要翻译：火花塞包括金属壳，绝缘体，中心电极，接地电极，第一贵金属芯片和第二贵金属芯片。金属壳体具有外径等于或小于14mm的螺纹部分，用于将火花塞安装到内燃机上。火花塞的结构中的参数，例如第一贵金属芯片的端面积S，第一贵金属芯片的长度A，第二贵金属芯片的端面积Q，长度B 第二贵金属芯片，气穴尺寸L，火花间隙的空间G，绝缘子的比率L / G和厚度T具有通过实验研究确定的适当的尺寸范围。该结构确保火花塞的高性能和长使用寿命。

7. 发明申请

US20050057134A1 High performance, long-life spark plug 有权
标题翻译：高性能，长寿命的火花塞
公开(公告)号：US20050057134A1
公开(公告)日：2005-03-17
申请号：US10937374
申请日：2004-09-10
申请人： Keiji Kanao , Shinichi Okabe
发明人： Keiji Kanao , Shinichi Okabe
IPC分类号： H01T13/20 , H01T13/39
CPC分类号： H01T13/39
摘要： A spark plug includes a metal shell, an insulator, a center electrode, a ground electrode, a first noble metal chip, and a second noble metal chip. The metal shell has a threaded portion with an outer diameter of equal to or less than 14 mm for installing the spark plug to an internal combustion engine. The parameters in the structure of the spark plug, such as an end surface area S of the first noble metal chip, a length A of the first noble metal chip, an end surface area Q of the second noble metal chip, a length B of the second noble metal chip, an air pocket size L, a space G of a spark gap, a ratio L/G, and a thickness T of the insulator, have suitable dimensional ranges determined through experimental investigation. The structure ensures high performance and a long service life for the spark plug.
摘要翻译：火花塞包括金属壳，绝缘体，中心电极，接地电极，第一贵金属芯片和第二贵金属芯片。金属壳体具有外径等于或小于14mm的螺纹部分，用于将火花塞安装到内燃机上。火花塞的结构中的参数，例如第一贵金属芯片的端面积S，第一贵金属芯片的长度A，第二贵金属芯片的端面积Q，长度B 第二贵金属芯片，气穴尺寸L，火花间隙的空间G，绝缘子的比率L / G和厚度T具有通过实验研究确定的适当的尺寸范围。该结构确保火花塞的高性能和长使用寿命。

8. 发明授权

US07122948B2 Spark plug having enhanced capability to ignite air-fuel mixture 有权
标题翻译：火花塞具有增强的燃料混合物点火能力
公开(公告)号：US07122948B2
公开(公告)日：2006-10-17
申请号：US10942092
申请日：2004-09-16
申请人： Keiji Kanao , Shinichi Okabe
发明人： Keiji Kanao , Shinichi Okabe
IPC分类号： H01T13/20
CPC分类号： H01T13/39
摘要： A spark plug includes a metal shell, an insulator, a center electrode, and a ground electrode. The metal shell has a threaded portion with an outer diameter of equal to or less than 10 mm, or equal to 12 mm for installing the spark plug in an internal combustion engine. The dimensional parameters in the structure of the spark plug, such as a clearance X between the center electrode and the insulator, a surface-creeping distance Y outside the metal shell, a protruding length Y1 of the insulator, an air pocket size Z, and a surface-creeping distance W inside the metal shell satisfy the dimensional relationships defined through experimental investigation in the invention. The structure ensures a high capability of the spark plug to ignite the air-fuel mixture even when the insulator thereof is fouled with carbon.
摘要翻译：火花塞包括金属壳，绝缘体，中心电极和接地电极。金属外壳具有外径等于或小于10mm或等于12mm的螺纹部分，用于将火花塞安装在内燃机中。火花塞结构中的尺寸参数，例如中心电极和绝缘体之间的间隙X，金属壳外表面爬行距离Y，绝缘体的突出长度Y 1，气穴尺寸Z，并且金属壳内的表面爬行距离W满足通过本发明的实验研究定义的尺寸关系。该结构确保即使当其绝缘体被碳污染时，火花塞也能够点燃空气 - 燃料混合物。

9. 发明授权

US07183702B2 Spark plug with high insulation properties and high capability to ignite air-fuel mixture 有权
标题翻译：火花塞具有高绝缘性能和高能燃烧空气燃料的混合物
公开(公告)号：US07183702B2
公开(公告)日：2007-02-27
申请号：US11046247
申请日：2005-01-31
申请人： Keiji Kanao , Shinichi Okabe
发明人： Keiji Kanao , Shinichi Okabe
IPC分类号： F02M57/06 , H01T13/20
CPC分类号： H01T13/39 , H01T13/20 , H01T13/38
摘要： A spark plug according to the invention includes a metal shell that has a threaded portion with an outer diameter of 10 mm or less, or equal to 12 mm, an insulator, a center electrode, and a ground electrode. The spark plug has an improved structure in which an end portion of the insulator tapers toward an end thereof that protrudes from an end of the metal shell, and dimensional parameters, including a space G of the spark gap in the spark plug, a taper degree of the end portion of the insulator that is represented by an outer diameter difference (D−D0) in the end portion, and a size T0 of the air pocket formed in the spark plug, each have an effective range determined based on the experimental investigation results from the inventors. The structure ensures high insulation properties and high ignition capability of the spark plug.
摘要翻译：根据本发明的火花塞包括具有外径为10mm或更小或等于12mm的螺纹部分的绝缘体，中心电极和接地电极的金属外壳。火花塞具有改进的结构，其中绝缘体的端部朝向从金属壳的端部突出的端部逐渐变细，并且尺寸参数包括火花塞中的火花间隙的空间G，锥度由端部中的外径差（DD 0）表示的绝缘体的端部和形成在火花塞中的气穴的尺寸T 0各自具有基于实验研究确定的有效范围本发明人的结果。该结构确保火花塞的高绝缘性能和高点燃能力。

10. 发明申请

US20050168120A1 Spark plug with high insulation properties and high capability to ignite air-fuel mixture 有权
标题翻译：火花塞具有高绝缘性能和高能燃烧空气燃料的混合物
公开(公告)号：US20050168120A1
公开(公告)日：2005-08-04
申请号：US11046247
申请日：2005-01-31
申请人： Keiji Kanao , Shinichi Okabe
发明人： Keiji Kanao , Shinichi Okabe
IPC分类号： H01T13/20 , H01T13/38 , H01T13/39
CPC分类号： H01T13/39 , H01T13/20 , H01T13/38
摘要： A spark plug according to the invention includes a metal shell that has a threaded portion with an outer diameter of 10 mm or less, or equal to 12 mm, an insulator, a center electrode, and a ground electrode. The spark plug has an improved structure in which an end portion of the insulator tapers toward an end thereof that protrudes from an end of the metal shell, and dimensional parameters, including a space G of the spark gap in the spark plug, a taper degree of the end portion of the insulator that is represented by an outer diameter difference (D−D0) in the end portion, and a size T0 of the air pocket formed in the spark plug, each have an effective range determined based on the experimental investigation results from the inventors. The structure ensures high insulation properties and high ignition capability of the spark plug.
摘要翻译：根据本发明的火花塞包括具有外径为10mm或更小或等于12mm的螺纹部分的绝缘体，中心电极和接地电极的金属外壳。火花塞具有改进的结构，其中绝缘体的端部朝向从金属壳的端部突出的端部逐渐变细，并且尺寸参数包括火花塞中的火花间隙的空间G，锥度由端部中的外径差（DD 0）表示的绝缘体的端部和形成在火花塞中的气穴的尺寸T 0各自具有基于实验研究确定的有效范围本发明人的结果。该结构确保火花塞的高绝缘性能和高点燃能力。

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