公开(公告)号：US08523624B2

公开(公告)日：2013-09-03

申请号：US13553843

申请日：2012-07-20

申请人： Keiji Kanao ,  Ken Hanashi ,  Kenka Tsubota

发明人： Keiji Kanao ,  Ken Hanashi ,  Kenka Tsubota

IPC分类号： H01T21/02

CPC分类号： H01T13/39 ,  H01T13/467 ,  H01T21/02

摘要： A spark plug includes a tubular metal shell, an insulator, a cylindrical center electrode, and a ground electrode. The ground electrode has an inclined portion, a straight portion, and a bend between the inclined and straight portions. The inclined portion extends obliquely with respect to the axial direction of the center electrode from a base end of the ground electrode, which is joined to an end of the metal shell, to the bend that is positioned closer to the center electrode in the radial direction of the center electrode than the base end. The straight portion extends substantially parallel to the axial direction of the center electrode from the bend to a tip end of the ground electrode. The straight portion has an inner side surface facing the side surface of an end portion of the center electrode through a spark gap in the radial direction of the center electrode.

摘要翻译： 火花塞包括管状金属壳，绝缘体，圆柱形中心电极和接地电极。 接地电极具有倾斜部分，直线部分和倾斜部分和直线部分之间的弯曲部分。 倾斜部相对于中心电极的轴向从与金属壳的端部接合的接地电极的基端朝向径向靠近中心电极的弯曲部倾斜地延伸 的中心电极比基端。 直线部分基本上平行于中心电极的轴向方向从弯曲部到接地电极的尖端延伸。 直线部分具有通过中心电极的径向方向上的火花隙与中心电极的端部的侧表面相对的内侧表面。

公开(公告)号：US20060163992A1

公开(公告)日：2006-07-27

申请号：US11336876

申请日：2006-01-23

申请人： Keiji Kanao ,  Ken Hanashi ,  Kenka Tsubota

发明人： Keiji Kanao ,  Ken Hanashi ,  Kenka Tsubota

IPC分类号： H01T13/20

CPC分类号： H01T13/39 ,  H01T13/467 ,  H01T21/02

摘要： A spark plug includes a tubular metal shell, an insulator, a cylindrical center electrode, and a ground electrode. The ground electrode has an inclined portion, a straight portion, and a bend between the inclined and straight portions. The inclined portion extends obliquely with respect to the axial direction of the center electrode from a base end of the ground electrode, which is joined to an end of the metal shell, to the bend that is positioned closer to the center electrode in the radial direction of the center electrode than the base end. The straight portion extends substantially parallel to the axial direction of the center electrode from the bend to a tip end of the ground electrode. The straight portion has an inner side surface facing the side surface of an end portion of the center electrode through a spark gap in the radial direction of the center electrode.

公开(公告)号：US20120289115A1

公开(公告)日：2012-11-15

申请号：US13553843

申请日：2012-07-20

申请人： Keiji KANAO ,  Ken Hanashi ,  Kenka Tsubota

发明人： Keiji KANAO ,  Ken Hanashi ,  Kenka Tsubota

IPC分类号： H01T21/02

CPC分类号： H01T13/39 ,  H01T13/467 ,  H01T21/02

摘要： A spark plug includes a tubular metal shell, an insulator, a cylindrical center electrode, and a ground electrode. The ground electrode has an inclined portion, a straight portion, and a bend between the inclined and straight portions. The inclined portion extends obliquely with respect to the axial direction of the center electrode from a base end of the ground electrode, which is joined to an end of the metal shell, to the bend that is positioned closer to the center electrode in the radial direction of the center electrode than the base end. The straight portion extends substantially parallel to the axial direction of the center electrode from the bend to a tip end of the ground electrode. The straight portion has an inner side surface facing the side surface of an end portion of the center electrode through a spark gap in the radial direction of the center electrode.

摘要翻译： 火花塞包括管状金属壳，绝缘体，圆柱形中心电极和接地电极。 接地电极具有倾斜部分，直线部分和倾斜部分和直线部分之间的弯曲部分。 倾斜部相对于中心电极的轴向从与金属壳的端部接合的接地电极的基端朝向径向靠近中心电极的弯曲部倾斜地延伸 的中心电极比基端。 直线部分基本上平行于中心电极的轴向方向从弯曲部到接地电极的尖端延伸。 直线部分具有通过中心电极的径向方向上的火花隙与中心电极的端部的侧表面相对的内侧表面。

公开(公告)号：US08258686B2

公开(公告)日：2012-09-04

申请号：US11336876

申请日：2006-01-23

申请人： Keiji Kanao ,  Ken Hanashi ,  Kenka Tsubota

发明人： Keiji Kanao ,  Ken Hanashi ,  Kenka Tsubota

IPC分类号： H01T13/20

CPC分类号： H01T13/39 ,  H01T13/467 ,  H01T21/02

摘要： A spark plug includes a tubular metal shell, an insulator, a cylindrical center electrode, and a ground electrode. The ground electrode has an inclined portion, a straight portion, and a bend between the inclined and straight portions. The inclined portion extends obliquely with respect to the axial direction of the center electrode from a base end of the ground electrode, which is joined to an end of the metal shell, to the bend that is positioned closer to the center electrode in the radial direction of the center electrode than the base end. The straight portion extends substantially parallel to the axial direction of the center electrode from the bend to a tip end of the ground electrode. The straight portion has an inner side surface facing the side surface of an end portion of the center electrode through a spark gap in the radial direction of the center electrode.

摘要翻译： 火花塞包括管状金属壳，绝缘体，圆柱形中心电极和接地电极。 接地电极具有倾斜部分，直线部分和倾斜部分和直线部分之间的弯曲部分。 倾斜部相对于中心电极的轴向从与金属壳的端部接合的接地电极的基端朝向径向靠近中心电极的弯曲部倾斜地延伸 的中心电极比基端。 直线部分基本上平行于中心电极的轴向方向从弯曲部到接地电极的尖端延伸。 直线部分具有通过中心电极的径向方向上的火花隙与中心电极的端部的侧表面相对的内侧表面。

公开(公告)号：US08398447B2

公开(公告)日：2013-03-19

申请号：US13437171

申请日：2012-04-02

申请人： Ken Hanashi ,  Satoru Kadowaki ,  Tsunenobu Hori ,  Kenka Tsubota ,  Hirotaka Aida ,  Hiroya Ishiguro

发明人： Ken Hanashi ,  Satoru Kadowaki ,  Tsunenobu Hori ,  Kenka Tsubota ,  Hirotaka Aida ,  Hiroya Ishiguro

IPC分类号： H01T21/02 ,  H01T13/20

CPC分类号： H01T21/06 ,  H01T13/32

摘要： A method of manufacturing a spark plug having an attachment fitting 2, an insulator 3, a center electrode 4 and an earth electrode 5. While fixed to attachment fitting 2, earth electrode 5 has a convex part 510 formed by projecting a part of an opposed surface 51 toward center electrode 4, and a concave part 520 formed toward the opposed surface 51 from the earth electrode's back surface 52. The convex part 510 is disposed so that the extension of a shaft center of the convex part 510 passes through the area in which the concave part 520 is formed. The relation S1>=s is realized when an area of an opening of the concave part 520 is set to S1 and an average cross-section area of a cross section of the convex part 510 perpendicular to an axial direction of the spark plug is set to s.

摘要翻译： 一种制造具有附件2，绝缘体3，中心电极4和接地电极5的火花塞的方法。接地电极5固定在安装配件2上，具有凸部510， 表面51朝向中心电极4，以及从接地电极的背面52朝向相对面51形成的凹部520.凸部510设置成使得凸部510的轴心的延伸通过 凹部520形成。 当凹部520的开口面积设定为S1，并且凸部510的与火花塞的轴向垂直的截面的平均截面积被设定时，实现关系S1> = s 到了

公开(公告)号：US08339021B2

公开(公告)日：2012-12-25

申请号：US12671292

申请日：2008-07-31

申请人： Ken Hanashi ,  Satoru Kadowaki ,  Tsunenobu Hori ,  Kenka Tsubota ,  Hirotaka Aida ,  Hiroya Ishiguro

发明人： Ken Hanashi ,  Satoru Kadowaki ,  Tsunenobu Hori ,  Kenka Tsubota ,  Hirotaka Aida ,  Hiroya Ishiguro

IPC分类号： H01T13/20

CPC分类号： H01T21/06 ,  H01T13/32

摘要： A spark plug for an internal-combustion engine comprises an attachment fitting 2, an insulator 3, a center electrode 4 and an earth electrode 5. While fixed to the attachment fitting 2, the earth electrode 5 has a convex part 510 formed by projecting toward the center electrode 4 a part of the opposed surface 51, which faces the center electrode 4, of the earth electrode and a concave part 520 formed toward the opposed surface 51 from the earth electrode's back surface 52 which is the reverse side of the opposed surface 51 of the earth electrode 5. The convex part 510 is disposed so that the extension of a shaft center of the convex part 510 may pass through the area in which the concave part 520 is formed. A relation of S1>=s is realized when an area of an opening of the concave part 520 is set to S1 and an average cross-section area of a cross section of the convex part 510 perpendicular to an axial direction of the spark plug is set to s.

摘要翻译： 用于内燃机的火花塞包括附接配件2，绝缘体3，中心电极4和接地电极5.固定到安装配件2上时，接地电极5具有凸出部510， 中心电极4是接地电极的与中心电极4相对的相对面51的一部分，以及从接地电极的背面52朝向相对面51形成的凹部520，该背面52是相对面的背面 凸部510被设置成凸部510的轴心的延伸部可以穿过形成有凹部520的区域。 当凹部520的开口面积设定为S1，凸部510的与火花塞的轴向垂直的截面积的平均截面积为 设置为s。

公开(公告)号：US20100289397A1

公开(公告)日：2010-11-18

申请号：US12671292

申请日：2008-07-31

申请人： Ken Hanashi ,  Satoru Kadowaki ,  Tsunenobu Hori ,  Kenka Tsubota ,  Hirotaka Aida ,  Hiroya Ishiguro

发明人： Ken Hanashi ,  Satoru Kadowaki ,  Tsunenobu Hori ,  Kenka Tsubota ,  Hirotaka Aida ,  Hiroya Ishiguro

IPC分类号： H01T13/32 ,  H01T21/02

CPC分类号： H01T21/06 ,  H01T13/32

摘要： A spark plug for an internal-combustion engine comprises an attachment fitting 2, an insulator 3, a center electrode 4 and an earth electrode 5 . While fixed to the attachment fitting 2, the earth electrode 5 has a convex part 510 formed by projecting toward the center electrode 4 a part of the opposed surface 51, which faces the center electrode 4, of the earth electrode and a concave part 520 formed toward the opposed surface 51 from the earth electrode's back surface 52 which is the reverse side of the opposed surface 51 of the earth electrode 5 . The convex part 510 is disposed so that the extension of a shaft center of the convex part 510 may pass through the area in which the concave part 520 is formed. A relation of S1>=s is realized when an area of an opening of the concave part 520 is set to S1 and an average cross-section area of a cross section of the convex part 510 perpendicular to an axial direction of the spark plug is set to s.

摘要翻译： 用于内燃机的火花塞包括附接配件2，绝缘体3，中心电极4和接地电极5。 固定在安装配件2上时，接地电极5具有凸状部510，该凸部510通过向中心电极4突出与接地电极相对的中心电极4的相对面51的一部分，形成有凹部520 从接地电极的背面52朝向相对面51，后表面52是接地电极5的相对表面51的相反侧。 凸部510被配置为使得凸部510的轴心的延伸部可以穿过形成有凹部520的区域。 当凹部520的开口面积设定为S1，凸部510的与火花塞的轴向垂直的截面积的平均截面积为 设置为s。

公开(公告)号：US06337533B1

公开(公告)日：2002-01-08

申请号：US09324860

申请日：1999-06-03

申请人： Ken Hanashi ,  Keiji Kanao ,  Tsunetoshi Goto

发明人： Ken Hanashi ,  Keiji Kanao ,  Tsunetoshi Goto

IPC分类号： H01T1320

CPC分类号： H01T13/39 ,  H01T21/02

摘要： In a spark plug, a chip made of Ir alloy is partly buried into and bonded by laser beam welding on the ground electrode made of Ni base alloy. A molten portion is extended from the inside of the ground electrode through a junction of the chip and the electrode into the inside of the chip, but not formed on the spark discharge surface of the chip. Where A is a maximum length from the end of the junction on the side of the center electrode to the end of the molten portion on the junction on the side opposite to the center electrode, within the length A, B is a length of both ends of the molten portion, t is a length of the chip perpendicularly extending from the junction and d is a sum of the length t and a length of the molten portion protruding from the junction into the ground electrode, a ratio of A/B is not less than 0.5 and a ratio of d/t is not less than 2, but more than 4. When an end surface of the chip is the spark discharge surface, laser beam welding is conducted from the ground electrode toward a side of the other end surface or from the longitudinal side surface of the chip toward the ground electrode.

摘要翻译： 在火花塞中，由Ir合金制成的芯片通过激光束焊接部分地埋在由Ni基合金制成的接地电极上并粘合。 熔融部分从接地电极的内部延伸通过芯片和电极的接合到芯片的内部，但不形成在芯片的火花放电表面上。 其中A是从中心电极一侧的结的端部到与中心电极相对的一侧的接合处的熔融部分的端部的最大长度，在长度A内，B是两端的长度 熔融部分的t是从接合部垂直延伸的芯片的长度，d是长度t和熔融部分从接合部分向接地电极突出的长度的总和，A / B的比率不是 小于0.5，d / t的比例不小于2，但大于4.当芯片的端面是火花放电表面时，激光束焊接从接地电极朝向另一端的一侧 表面或从芯片的纵向侧表面朝向接地电极。

公开(公告)号：US08760045B2

公开(公告)日：2014-06-24

申请号：US12690230

申请日：2010-01-20

申请人： Yasushi Kawashima ,  Ken Hanashi

发明人： Yasushi Kawashima ,  Ken Hanashi

IPC分类号： H01T13/20

CPC分类号： H01T13/32 ,  B23K9/0026 ,  H01T21/02

摘要： A spark plug for internal-combustion engines equipped with a center electrode and a ground electrode is provided. In the spark plug, the ground electrode is fixed to a mount fitting, while the ground electrode has a convex portion. The convex portion is made of a part of base materials of the ground electrode where the part is facing the center electrode, and is projected toward the center electrode. The convex portion has a fusion solidification part made of precious metal materials and a part of the base materials melted together and solidified at least on part of an electric discharge surface facing the center electrode.

摘要翻译： 提供了配备有中心电极和接地电极的内燃机的火花塞。 在火花塞中，接地电极固定在安装配件上，而接地电极具有凸部。 该凸部由接地电极的一部分基部材料构成，其中该部分面向中心电极，并且朝向中心电极突出。 凸部具有由贵金属材料制成的熔融凝固部，并且部分基材熔融在一起，并且与面向中心电极的放电面的至少一部分固化。

公开(公告)号：US20080092839A1

公开(公告)日：2008-04-24

申请号：US11923066

申请日：2007-10-24

申请人： Ken Hanashi ,  Takayuki Takeuchi

发明人： Ken Hanashi ,  Takayuki Takeuchi

IPC分类号： H01T13/02

CPC分类号： H01T13/18 ,  H01T13/20 ,  H01T13/32

摘要： A spark plug for an internal combustion engine is provided which includes a hollow cylindrical metal shell with an open end portion to be exposed to a combustion chamber of the engine, a ground electrode joined to the metal shell, a center electrode disposed in the metal housing to define a spark gap between itself and the ground electrode. The spark plug also includes a stream shaper geometrically formed on an outer periphery of the open end portion of the metal shell to shape tumble vortexes of air-fuel mixture into vortex streams oriented toward a central portion of the combustion chamber. This ensures the stability of orientation of the tumble vortexes to control a flow of sparks, thereby enhancing the ignitability of the air-fuel mixture in the combustion chamber.

摘要翻译： 一种用于内燃机的火花塞，包括一中空圆柱形的金属壳体，其开口端部暴露于发动机的燃烧室，接地电极连接在金属壳体上，中心电极设置在金属壳体中 以限定其本身与接地电极之间的火花隙。 火花塞还包括几何形状地形成在金属壳的开口端部分的外周上的流形成器，以将空气 - 燃料混合物的翻滚涡流形成为朝向燃烧室的中心部分的涡流。 这确保了翻滚涡流的方向的稳定性以控制火花流，从而增强燃烧室中的空气燃料混合物的点火性。