公开(公告)号：US07808166B2

公开(公告)日：2010-10-05

申请号：US11976654

申请日：2007-10-26

申请人： Takayuki Takeuchi ,  Ken Hanashi

发明人： Takayuki Takeuchi ,  Ken Hanashi

IPC分类号： H01T13/20

CPC分类号： H01T13/32

摘要： A spark plug includes a metal shell, an insulator, a center electrode, and a ground electrode. The ground electrode includes an intermediate portion extending in the axial direction of the center electrode in an axial range between an end of the insulator and an end of the center electrode. The intermediate portion has a thickness surface that is perpendicular to a radial direction of the center electrode and defines a thickness of the intermediate portion in a thicknesswise direction that is perpendicular to both the axial and radial directions of the center electrode. The intermediate portion also has a width surface that is perpendicular to the thickness surface and defines a width of the intermediate portion in a widthwise direction that is perpendicular to both the thicknesswise direction and the axial direction of the center electrode. The thickness of the intermediate portion is smaller than the width of the same.

摘要翻译： 火花塞包括金属壳，绝缘体，中心电极和接地电极。 接地电极包括在中心电极的轴向方向上在绝缘体的端部和中心电极的端部之间的轴向范围内延伸的中间部分。 中间部分具有垂直于中心电极的径向方向的厚度表面，并且在垂直于中心电极的轴向和径向方向的厚度方向上限定中间部分的厚度。 所述中间部分还具有垂直于所述厚度表面的宽度表面，并且在垂直于所述中心电极的厚度方向和轴向方向的宽度方向上限定所述中间部分的宽度。 中间部分的厚度小于其中间部分的宽度。

公开(公告)号：US20100213812A1

公开(公告)日：2010-08-26

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： H01T13/32 ,  H01T21/02

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：US07893604B2

公开(公告)日：2011-02-22

申请号：US11877913

申请日：2007-10-24

申请人： Takayuki Takeuchi ,  Ken Hanashi

发明人： Takayuki Takeuchi ,  Ken Hanashi

IPC分类号： H01T13/20

CPC分类号： H01T13/32 ,  H01T13/18

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 inner 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的内周上的流整形器，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定向的涡流。 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。

公开(公告)号：US20080284304A1

公开(公告)日：2008-11-20

申请号：US12120910

申请日：2008-05-15

申请人： Kiyohiko Watanabe ,  Shinichi Okabe ,  Kimitaka Saitoh ,  Masamichi Shibata ,  Ken Hanashi ,  Kengo Nakao

发明人： Kiyohiko Watanabe ,  Shinichi Okabe ,  Kimitaka Saitoh ,  Masamichi Shibata ,  Ken Hanashi ,  Kengo Nakao

IPC分类号： H01T13/20

CPC分类号： H01T13/32 ,  H01T13/52

摘要： There is provided a spark plug that includes a center electrode, an insulator, a housing, a ground electrode, an auxiliary ground electrode, and a projected portion in the housing. The housing has a though-hole which is formed in the housing along the longitudinal axis of the center electrode and has an opening of the through-hole at the first housing end. The ground electrode has a first end facing the end of the center electrode to form a first discharge gap. The auxiliary ground electrode has a first end facing an outer peripheral surface of the first end of the insulator to form a second discharge gap. The projected portion is formed in a hollow portion of the through-hole and is projected from an inner peripheral surface of the hollow portion of the housing.

摘要翻译： 提供了一种火花塞，其包括中心电极，绝缘体，壳体，接地电极，辅助接地电极和壳体中的突出部分。 壳体具有沿着中心电极的纵向轴线形成在壳体中的通孔，并且在第一壳体端处具有通孔的开口。 接地电极具有面向中心电极的端部的第一端，以形成第一放电间隙。 辅助接地电极具有面向绝缘体的第一端的外周表面的第一端，以形成第二放电间隙。 突出部分形成在通孔的中空部分中并且从壳体的中空部分的内周表面突出。

公开(公告)号：US20080093965A1

公开(公告)日：2008-04-24

申请号：US11976438

申请日：2007-10-24

申请人： Kenichiro Takada ,  Ken Hanashi ,  Takayuki Takeuchi

发明人： Kenichiro Takada ,  Ken Hanashi ,  Takayuki Takeuchi

IPC分类号： H01T13/20

CPC分类号： H01T13/32 ,  H01T13/18

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 or a stream reflector geometrically formed on the metal shell and/or the porcelain insulator to shape a vortex steam of air-fuel mixture into a stream thereof which is oriented outside the spark plug or serves to decrease the amount of the air-fuel mixture into a pocket between the metal shell and the porcelain insulator. This ensures the stability of ignition of the air-fuel mixture.

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和/或瓷绝缘体上的流形成器或流反射器，以将空气 - 燃料混合物的涡流蒸汽成形为其在火花塞外部的流，或者用于减小 空气 - 燃料混合物的量进入金属壳和瓷绝缘体之间的袋中。 这确保空气 - 燃料混合物的点火的稳定性。

公开(公告)号：US20080092838A1

公开(公告)日：2008-04-24

申请号：US11877913

申请日：2007-10-24

申请人： Takayuki TAKEUCHI ,  Ken Hanashi

发明人： Takayuki TAKEUCHI ,  Ken Hanashi

IPC分类号： H01T13/02

CPC分类号： H01T13/32 ,  H01T13/18

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 inner 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的内周上的流整形器，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定向的涡流。 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。