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1. 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。

2. 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。

3. 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

4. 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。

5. 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。

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。

8. 发明授权

US08299694B2 Spark plug having improved adhesion between resistor and glass sealing layer 有权
标题翻译：火花塞具有改善电阻和玻璃密封层之间的粘附性
公开(公告)号：US08299694B2
公开(公告)日：2012-10-30
申请号：US12734534
申请日：2009-03-23
申请人： Akira Suzuki , Tomoaki Kato , Tsutomu Shibata , Mamoru Musasa
发明人： Akira Suzuki , Tomoaki Kato , Tsutomu Shibata , Mamoru Musasa
IPC分类号： H01T13/20
CPC分类号： H01T13/34
摘要： A spark plug with excellent vibration resistance performance and resistor load life-span characteristics, and a reduced diameter which is achieved by strengthening adhesion between a resistor and a conductive glass sealing layer.
摘要翻译：具有优异的抗振性能和电阻器寿命特性的火花塞，以及通过增强电阻器和导电玻璃密封层之间的粘附力而实现的减小的直径。

9. 发明申请

US20110294369A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20110294369A1
公开(公告)日：2011-12-01
申请号：US13146816
申请日：2010-01-27
申请人： Naomichi Miyashita , Mamoru Musasa , Akira Suzuki , Kazuyoshi Torii , Tomoaki Kato
发明人： Naomichi Miyashita , Mamoru Musasa , Akira Suzuki , Kazuyoshi Torii , Tomoaki Kato
IPC分类号： H01R13/02
CPC分类号： H01T13/39 , H01T13/32
摘要： The present invention provides a spark plug which is capable of suppressing a occurrence of crack and separation by determining a structural configuration of a melting portion formed in a junction portion between a discharge portion and a pedestal portion which form an ignition portion that protrudes from a ground electrode. In a profile line shape of a cross section including a center axis P of an ignition portion 80, an exposure surface 88 of a melting portion 83 connects a side surface 82 of a discharge portion 81 and a side surface 85 of a pedestal portion 84. Further, an exterior angle θ formed between an imaginary line Q, which passes through a boundary position X1 between the melting portion 83 and the pedestal portion 84 and a boundary position X2 between the melting portion 83 and the discharge portion 81, and the center axis P at a node C, satisfies 135°≦θ≦175°. Furthermore, a proportion T/S of a forming depth T of the melting portion 83 to an outside diameter S of the discharge portion 81 satisfies T/S≧0.5.
摘要翻译：本发明提供一种火花塞，其能够通过确定在形成从地面突出的点火部的排出部和基座部之间的接合部中形成的熔融部的结构构造来抑制裂纹和分离的发生电极。在包括点火部分80的中心轴线P的截面的轮廓线形状中，熔化部分83的暴露表面88连接排出部分81的侧表面82和基座部分84的侧表面85。此外，外角＆thetas; 形成在通过熔融部83与基座部84之间的边界位置X1的虚拟线Q与熔融部83与排出部81之间的边界位置X2以及节点C的中心轴P之间，满足135°＆nlE;＆thetas;＆nlE; 175°。此外，熔融部83的成形深度T与排出部81的外径S的比例T / S满足T /S≥0.5。

10. 发明授权

US08143773B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US08143773B2
公开(公告)日：2012-03-27
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： H01T13/00
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和表示在绝缘体的位置C之间的抗弯强度的抗弯强度的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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