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1. 发明授权

US07944134B2 Spark plug with center electrode having high heat dissipation property 有权
标题翻译：具有中心电极的火花塞具有高的散热性能
公开(公告)号：US07944134B2
公开(公告)日：2011-05-17
申请号：US12275259
申请日：2008-11-21
申请人： Jiro Kyuno , Akira Suzuki , Mai Moribe , Yuichi Nakano , Mamoru Musasa
发明人： Jiro Kyuno , Akira Suzuki , Mai Moribe , Yuichi Nakano , Mamoru Musasa
IPC分类号： H01T13/16 , H01T13/20 , H01T13/39
CPC分类号： H01T13/39
摘要： A spark plug including: a center electrode including an electrode base member and a core member; an electrode tip joined to the center electrode via a molten bond; an insulator holding the center electrode; a metal shell holding the insulator; and a ground electrode joined to the metal shell. Relationships d≦2.1 [mm] and −0.09×d+0.33
摘要翻译：一种火花塞，包括：中心电极，包括电极基体和芯部; 通过熔融接合连接到中心电极的电极头; 保持中心电极的绝缘体; 保持绝缘体的金属外壳; 以及与金属壳接合的接地电极。关系d＆nlE; 2.1 [mm]和-0.09×d + 0.33

2. 发明申请

US20110254428A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20110254428A1
公开(公告)日：2011-10-20
申请号：US12998935
申请日：2009-12-22
申请人： Jiro Kyuno , Akira Suzuki , Mamoru Musasa
发明人： Jiro Kyuno , Akira Suzuki , Mamoru Musasa
IPC分类号： H01T13/04
CPC分类号： H01T13/36 , H01T13/16
摘要： [Objective] To provide a spark plug which is configured such that an insulation member, from which a center electrode projects, is pressed frontward and held in a metallic shell, and is fixed by means of crimping the rear end of the metallic shell, and which can prevent a drop in gas tightness between the metallic shell and the insulation member due to a difference in thermal expansion therebetween.[Means for Solution] In a spark plug in which a mating shaft portion (10) of an insulation member (1) is loose-fitted into a mating hole portion (30) of a metallic shell (21), a filler (41) for maintaining gas tightness is charged between the outer circumferential surface of the mating shaft portion (10) and the inner circumferential surface of the mating hole portion (30). Despite the thermal expansion difference, the gas tightness is maintained, because the filler (41) for maintaining gas tightness is charged between the inner and outer circumferential surfaces.
摘要翻译： [目的]提供一种火花塞，其构造成使得中心电极突出的绝缘构件被向前压入并保持在金属壳中，并且通过压接金属壳的后端而被固定，以及这可以防止由于它们之间的热膨胀差而在金属壳和绝缘构件之间的气密性降低。 [解决方案]在绝缘构件（1）的配合轴部分（10）松配合到金属壳（21）的配合孔部分（30）中的火花塞中，填充物（41）为了保持气密性，在配合轴部（10）的外周面与配合孔部（30）的内周面之间进行充填。尽管存在热膨胀差异，但是由于用于保持气密性的填料（41）被填充在内圆周表面和外圆周表面之间，因此保持气密性。

3. 发明授权

US08633640B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US08633640B2
公开(公告)日：2014-01-21
申请号：US12998935
申请日：2009-12-22
申请人： Jiro Kyuno , Akira Suzuki , Mamoru Musasa
发明人： Jiro Kyuno , Akira Suzuki , Mamoru Musasa
IPC分类号： H01T13/04
CPC分类号： H01T13/36 , H01T13/16
摘要： [Objective] To provide a spark plug which is configured such that an insulation member, from which a center electrode projects, is pressed frontward and held in a metallic shell, and is fixed by means of crimping the rear end of the metallic shell, and which can prevent a drop in gas tightness between the metallic shell and the insulation member due to a difference in thermal expansion therebetween.[Means for Solution] In a spark plug in which a mating shaft portion (10) of an insulation member (1) is loose-fitted into a mating hole portion (30) of a metallic shell (21), a filler (41) for maintaining gas tightness is charged between the outer circumferential surface of the mating shaft portion (10) and the inner circumferential surface of the mating hole portion (30). Despite the thermal expansion difference, the gas tightness is maintained, because the filler (41) for maintaining gas tightness is charged between the inner and outer circumferential surfaces.
摘要翻译： [目的]提供一种火花塞，其构造成使得中心电极突出的绝缘构件被向前压入并保持在金属壳中，并且通过压接金属壳的后端而被固定，以及这可以防止由于它们之间的热膨胀差而在金属壳和绝缘构件之间的气密性降低。 [解决方案]在绝缘构件（1）的配合轴部分（10）松配合到金属壳（21）的配合孔部分（30）中的火花塞中，填充物（41）为了保持气密性，在配合轴部（10）的外周面与配合孔部（30）的内周面之间进行充填。尽管存在热膨胀差异，但是由于用于保持气密性的填料（41）被填充在内圆周表面和外圆周表面之间，因此保持气密性。

4. 发明授权

US08531094B2 Spark plug having self-cleaning of carbon deposits 有权
标题翻译：具有碳沉积自清洁功能的火花塞
公开(公告)号：US08531094B2
公开(公告)日：2013-09-10
申请号：US12595732
申请日：2008-09-10
申请人： Akira Suzuki , Tomoaki Kato , Mamoru Musasa , Jiro Kyuno
发明人： Akira Suzuki , Tomoaki Kato , Mamoru Musasa , Jiro Kyuno
IPC分类号： H01T13/20 , H01T13/14
CPC分类号： H01T13/20 , H01T13/14 , H01T13/34 , H01T13/39
摘要： The present invention provides a spark plug that includes a center electrode extending in an axial direction, a ceramic insulator having an axial hole formed in the axial direction to retain the center electrode in a front side of the axial hole and thereby form an assembly unit of the center electrode and the ceramic insulator, a metal shell surrounding an outer circumference of the ceramic insulator to retain therein the assembly unit, and a ground electrode having one end portion joined to a front end face of the metal shell and the other end portion facing the center electrode to define a spark gap therebetween, wherein the spark plug satisfies the following conditions: H≧1 mm, Vc≦17 mm3 and Ra≧1.0×103 K/(m·W) where H is a length by which the ceramic insulator protrudes toward the front from the front end face of the metal shell in the axial direction; Vc is a volume of part of the ceramic insulator extending within a range of 2 mm from a front end of the ceramic insulator toward the rear in the axial direction; and Ra is a thermal resistance per unit length, excluding air space, at 20° C. at a cross section of the assembly unit taken perpendicular to the axial direction at a position 2 mm away from the front end of the ceramic insulator.
摘要翻译：本发明提供一种火花塞，其包括沿轴向延伸的中心电极，具有沿轴向形成的轴向孔的陶瓷绝缘体，以将中心电极保持在轴向孔的前侧，从而形成组装单元所述中心电极和所述陶瓷绝缘体，围绕所述陶瓷绝缘体的外周的金属壳，以将所述组装单元保持在其中;以及接地电极，所述接地电极具有接合到所述金属壳的前端面的一个端部，所述中心电极在其间限定火花隙，其中所述火花塞满足以下条件：H> = 1mm，Vc @ 17mm 3，Ra> = 1.0×103K /（m·W）其中H是长度，陶瓷绝缘体从金属壳的前端面沿轴向向前突出; Vc是陶瓷绝缘体的一部分的体积，其距离陶瓷绝缘体的前端在轴向方向的后端2mm的范围内延伸; 并且Ra在距离陶瓷绝缘体的前端2mm的位置垂直于轴向的组装单元的截面处，在20℃下，每单位长度的热阻，不包括空气空间。

5. 发明申请

US20100117507A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20100117507A1
公开(公告)日：2010-05-13
申请号：US12595732
申请日：2008-09-10
申请人： Akira Suzuki , Tomoaki Kato , Mamoru Musasa , Jiro Kyuno
发明人： Akira Suzuki , Tomoaki Kato , Mamoru Musasa , Jiro Kyuno
IPC分类号： H01T13/20
CPC分类号： H01T13/20 , H01T13/14 , H01T13/34 , H01T13/39
摘要： The present invention provides a spark plug that includes a center electrode extending in an axial direction, a ceramic insulator having an axial hole formed in the axial direction to retain the center electrode in a front side of the axial hole and thereby form an assembly unit of the center electrode and the ceramic insulator, a metal shell surrounding an outer circumference of the ceramic insulator to retain therein the assembly unit, and a ground electrode having one end portion joined to a front end face of the metal shell and the other end portion facing the center electrode to define a spark gap therebetween, wherein the spark plug satisfies the following conditions: H≧1 mm, Vc≦17 mm3 and Ra≧1.0×10−3 m·K/W where H is a length by which the ceramic insulator protrudes toward the front from the front end face of the metal shell in the axial direction; Vc is a volume of part of the ceramic insulator extending within a range of 2 mm from a front end of the ceramic insulator toward the rear in the axial direction; and Ra is a thermal resistance per unit length, excluding air space, at 20° C. at a cross section of the assembly unit taken perpendicular to the axial direction at a position 2 mm away from the front end of the ceramic insulator.
摘要翻译：本发明提供一种火花塞，其包括沿轴向延伸的中心电极，具有沿轴向形成的轴向孔的陶瓷绝缘体，以将中心电极保持在轴向孔的前侧，从而形成组装单元所述中心电极和所述陶瓷绝缘体，围绕所述陶瓷绝缘体的外周的金属壳，以将所述组装单元保持在其中;以及接地电极，所述接地电极具有接合到所述金属壳的前端面的一个端部，所述中心电极在其间形成火花隙，其中，所述火花塞满足以下条件：H≥1mm，Vc＆nlE; 17mm3，Ra≥1.0×10-3m·K / W其中，H是陶瓷绝缘体从金属壳体的前端面沿轴向向前突出; Vc是陶瓷绝缘体的一部分的体积，其距离陶瓷绝缘体的前端在轴向方向的后端2mm的范围内延伸; 并且Ra在距离陶瓷绝缘体的前端2mm的位置垂直于轴向的组装单元的截面处，在20℃下，每单位长度的热阻，不包括空气空间。

6. 发明申请

US20090127998A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20090127998A1
公开(公告)日：2009-05-21
申请号：US12275259
申请日：2008-11-21
申请人： Jiro KYUNO , Akira Suzuki , Mai Moribe , Yuichi Nakano , Mamoru Musasa
发明人： Jiro KYUNO , Akira Suzuki , Mai Moribe , Yuichi Nakano , Mamoru Musasa
IPC分类号： H01T13/20
CPC分类号： H01T13/39
摘要： A spark plug including: a center electrode including an electrode base member and a core member; an electrode tip joined to the center electrode via a molten bond; an insulator holding the center electrode; a metal shell holding the insulator; and a ground electrode joined to the metal shell. Relationships d≦2.1 [mm] and −0.09×d+0.33
摘要翻译：一种火花塞，包括：中心电极，包括电极基体和芯部; 通过熔融接合连接到中心电极的电极头; 保持中心电极的绝缘体; 保持绝缘体的金属外壳; 以及与金属壳接合的接地电极。满足关系d <= 2.1 [mm]和-0.09xd + 0.33

7. 发明授权

US09027524B2 Spark plug for internal combustion engine and method of manufacturing the same 有权
标题翻译：用于内燃机的火花塞及其制造方法
公开(公告)号：US09027524B2
公开(公告)日：2015-05-12
申请号：US12735343
申请日：2008-12-24
申请人： Mamoru Musasa , Akira Suzuki , Osamu Yoshimoto
发明人： Mamoru Musasa , Akira Suzuki , Osamu Yoshimoto
IPC分类号： H01T13/39 , C22C1/04 , C22C5/04 , C22C9/00 , C22C19/03 , C22C32/00 , H01T13/32 , H01T21/02
CPC分类号： H01T13/39 , C22C1/0466 , C22C5/04 , C22C9/00 , C22C19/03 , C22C32/0021 , H01T13/32 , H01T21/02 , Y10T29/49002
摘要： A spark plug capable of preventing a separation of a noble metal tip and capable of extending a service-life of the spark plug.
摘要翻译：一种能够防止贵金属电极头分离并能够延长火花塞使用寿命的火花塞。

8. 发明授权

US08519606B2 Spark plug for internal combustion engine and method of manufacturing spark plug 有权
标题翻译：用于内燃机的火花塞和制造火花塞的方法
公开(公告)号：US08519606B2
公开(公告)日：2013-08-27
申请号：US13392351
申请日：2010-06-23
申请人： Akira Suzuki , Mai Nakamura , Mamoru Musasa
发明人： Akira Suzuki , Mai Nakamura , Mamoru Musasa
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T13/36 , F02P13/00 , H01T21/02
摘要： A spark plug (1) includes an insulator (2) and a metal shell (3), including a middle section (41) positioned between a collar section (16) and a tool engaging section (19). The middle section (41) has a bulged section (42), a first slender section (43) and a second slender section (44) that is the most slender at a portion positioned further to the leading end side than the bulged section (42). In a cross-section including the axis CL1, when the distance between both slender sections (43) and (44) along the axis CL1 is F (mm) and the bulged amount to the inside in diametrical direction of a most bulged section (42M) with respect to an imaginary line that connects a portion that is positioned furthest to the inside in diametrical direction of both slender sections 43 and 44 is G (mm), the relationship 0.00
摘要翻译：火花塞（1）包括绝缘体（2）和金属壳（3），其包括位于套环部分（16）和工具接合部分（19）之间的中间部分（41）。中间部分（41）具有凸出部分（42），第一细长部分（43）和第二细长部分（44），该第一细长部分（43）和第二细长部分（44）在位于鼓风部分（42）的前端侧的部分处最细）。在包括轴线CL1的横截面中，当沿着CL1的两个细长部分（43）和（44）之间的距离为F（mm）时，并且在最隆起部分（42M）的直径方向上的内部的膨胀量）相对于连接两个细长部43和44的径向内侧的部分的虚拟线为G（mm），满足关系0.00

9. 发明申请

US20120146484A1 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING SPARK PLUG 有权
标题翻译：用于内燃机的火花塞和制造火花塞的方法
公开(公告)号：US20120146484A1
公开(公告)日：2012-06-14
申请号：US13392351
申请日：2010-06-23
申请人： Akira Suzuki , Mai Nakamura , Mamoru Musasa
发明人： Akira Suzuki , Mai Nakamura , Mamoru Musasa
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T13/36 , F02P13/00 , H01T21/02
摘要： A generation of a stress corrosion cracking is prevented in a middle section. The spark plug 1 includes an insulator 2 that extends along an axis CL1 direction and a metal shell 3. The metal shell 3 includes a middle section 41 that is positioned between a collar section 16 and a tool engaging section 19. The middle section 41 has a bulged section 42 that bulges towards both the inside and the outside in the diametrical direction, a first slender section 43 that is the most slender at a portion that is positioned further to the rear end side in the axis CL1 direction than the bulged section 42 and a second slender section 44 that is the most slender at a portion that is positioned further to the leading end side in the axis CL1 direction than the bulged section 42 and the bulged section 42 has the most bulged section 42M that bulges toward the most inside of diametrical direction. In a cross-section that includes the axis CL1, when the distance between both slender sections 43 and 44 along the axis CL1 is F (mm) and the bulged amount to the inside in diametrical direction of the most bulged section 42M with respect to an imaginary line that connects a portion that is positioned furthest to the inside in diametrical direction of both slender sections 43 and 44 is G (mm), 0.00
摘要翻译：在中间部分防止产生应力腐蚀开裂。火花塞1包括沿轴线CL1方向延伸的绝缘体2和金属壳3.金属壳3包括位于套环部分16和工具接合部分19之间的中间部分41.中间部分41具有在直径方向上朝向内侧和外侧凸出的凸起部分42，在比沿凸出部分42更靠近轴线CL1方向的后端侧的部分处最细长的第一细长部分43 以及第二细长部分44，其在沿着CL1方向的前端侧比凸出部分42更远的部分处最细长，并且凸出部分42具有朝向最内侧凸出的最隆起部分42M 的直径方向。在包括轴线CL1的横截面中，当沿着轴线CL1的两个细长部分43和44之间的距离为F（mm）时，并且最大凸起部分42M的直径方向内侧的凸出量相对于连接两个细长部分43和44在径向方向上最远位置的部分的假想线是G（mm），0.00

10. 发明申请

US20110018422A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20110018422A1
公开(公告)日：2011-01-27
申请号：US12933192
申请日：2009-03-17
申请人： Akira Suzuki , Tomoaki Kato , Mamoru Musasa
发明人： Akira Suzuki , Tomoaki Kato , Mamoru Musasa
IPC分类号： H01T13/02
CPC分类号： H01T13/38
摘要： When an insulator of a spark plug receives an external force in a bending direction perpendicular to an axis at a rear end side body portion, a position C where the insulator is supported by a crimping portion via a packing acts as a fulcrum, and a stress is applied between the position C and a position B where the insulator is supported by a ledge portion via a packing. When an insulator is designed in which the balance of size and modulus of section is adjusted so that τA which denotes a proof strength against bending between a rear end position A of the insulator and the position C and τB which denotes a proof strength against bending between the position B and the position C satisfy 0.71≦τA/τB≦1.27, cracks can be prevented.
摘要翻译：当火花塞的绝缘体在与后端侧主体部分的轴线垂直的弯曲方向上接收到外力时，绝缘体经由填料被压接部支撑的位置C用作支点，并且应力施加在位置C和位置B之间，其中绝缘体通过包装被凸缘部分支撑。当设计绝缘体时，其中调节截面尺寸和模量的平衡，使得表示绝缘体的后端位置A与位置C之间的弯曲的抵抗强度的τA和表示在绝缘体的后端位置A之间的弯曲的抗弯强度的τB 位置B和位置C满足0.71＆nlE;τA/τB＆nlE; 1.27，可以防止裂纹。

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