专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07821186B2 Spark plug having specific configuration of center electrode with respect to outer electrode 有权
标题翻译：具有相对于外部电极的中心电极的具体结构的火花塞
公开(公告)号：US07821186B2
公开(公告)日：2010-10-26
申请号：US12339599
申请日：2008-12-19
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa , Kazumasa Yoshida
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa , Kazumasa Yoshida
IPC分类号： H01T13/20
CPC分类号： H01T13/39 , H01T13/16 , H01T13/32
摘要： A spark plug includes an outer electrode including an outer electrode tip of which a distal end surface is spaced from an outer peripheral surface of a leading end portion of a center electrode to define a spark discharge gap. A protruding insulator portion of a cylindrical insulator protrudes at least 1.0 mm from a leading end surface of a cylindrical metal shell. A protruding center electrode portion of the center electrode protrudes at least 3.5 mm from the leading end surface of the cylindrical metal shell. A relationship (θ1+θ2)/2≧75 degrees is satisfied where the angle θ1 is defined as a central angle (degrees) of a first circular sector having a point B1 as a center thereof, and the angle θ2 is an average value (degrees) of the central angles of two second circular sectors having the point B1 as a center thereof.
摘要翻译：火花塞包括外电极，外电极端部的远端表面与中心电极的前端部分的外周表面间隔开以限定火花放电间隙。圆柱形绝缘体的突出的绝缘体部分从圆柱形金属壳的前端表面突出至少1.0mm。中心电极的突出的中心电极部分从圆柱形金属壳的前端表面突出至少3.5mm。将角度和角度1定义为具有点B1为中心的第一圆形扇形的中心角度（度），并且角度（θ）与角度（θ）之间的关系（＆Thetas; 1 +＆thetas; 2）/2≥75度＆thetas; 2是以点B1为中心的两个第二圆形扇形体的中心角度的平均值（度）。

2. 发明授权

US08013504B2 Spark plug for internal combustion engine and method for producing the spark plug 有权
标题翻译：用于内燃机的火花塞和产生火花塞的方法
公开(公告)号：US08013504B2
公开(公告)日：2011-09-06
申请号：US12274828
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/20
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a center electrode; a substantially cylindrical insulator; a cylindrical metal shell; a ground electrode having a base end joined to a leading end portion of the metal shell and a distal end bent toward the axis line. The ground electrode includes: a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion. A noble metal tip is joined to and partially embedded in the inner peripheral surface of the thin portion and disposed to form a gap between the noble metal tip and the leading end portion of the center electrode.
摘要翻译：一种火花塞，包括：中心电极; 一个基本上圆柱形的绝缘体; 圆柱形金属外壳; 接地电极，其具有接合到所述金属壳的前端部的基端和朝向所述轴线弯曲的远端。接地电极包括：设置在基端侧的厚壁部，设置在前端侧的薄壁部和设置在厚壁部与薄壁部之间的内周面的台阶部。贵金属端头接合并部分地嵌入薄壁的内周面，并且设置成在贵金属端头和中心电极的前端部之间形成间隙。

3. 发明授权

US08013503B2 Spark plug for internal combustion engine having ground electrode with thick, thin and stepped portion and method for producing the spark plug 有权
标题翻译：用于内燃机的火花塞，其具有厚，薄和阶梯部分的接地电极以及用于产生火花塞的方法
公开(公告)号：US08013503B2
公开(公告)日：2011-09-06
申请号：US12274423
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a ground electrode including a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion; a noble metal tip partially embedded in an inner peripheral surface of the thin portion; and a bulge portion provided on the inner peripheral surface of the thin portion between the stepped portion and the noble metal tip. When viewed from a side surface of the ground electrode, a relationship [a protruding height of the noble metal tip from the inner peripheral surface of the thin portion]≧[a protruding height of the bulge portion from the inner peripheral surface of the thin portion].
摘要翻译：一种火花塞，包括：接地电极，其包括设置在基端侧的厚部，设置在前端侧的薄部，以及设置在所述厚部与所述薄部之间的内周面的台阶部; 部分地嵌入所述薄部的内周面的贵金属电极头; 以及设置在阶梯部和贵金属端之间的薄壁部的内周面的凸部。当从接地电极的侧面观察时，贵金属电极头从薄壁部的内周面突出的高度相对于凸部的从薄壁部的内周面突出的高度 ]。

4. 发明授权

US08188641B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US08188641B2
公开(公告)日：2012-05-29
申请号：US12743851
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/20
CPC分类号： H01T13/39 , H01T13/20
摘要： A center electrode includes a tapered electrode base member mount and a noble metal tip joined to the electrode base member mount via a fused portion in which the component of the noble metal tip and the component of the electrode base member mount are fused. In this state, the cross section area S1 at a tip side boundary between the fused portion and the noble metal tip and the cross section area S2 at a base member side boundary between the fused portion and the electrode base member mount satisfy the relational expression of S1
摘要翻译：中心电极包括锥形电极基体部件安装座和通过熔融部分接合到电极基体部件安装件的贵金属电极头，贵金属电极头部件和电极基体部件安装件的部件熔合在其中。在这种状态下，熔融部分和贵金属电极头之间的尖端侧边界处的截面面积S1和熔融部分和电极基底部件安装座之间的基底部分边界处的截面面积S2满足关系式 S1

5. 发明申请

US20100264804A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20100264804A1
公开(公告)日：2010-10-21
申请号：US12743851
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/20
CPC分类号： H01T13/39 , H01T13/20
摘要： A center electrode includes a tapered electrode base member mount and a noble metal tip joined to the electrode base member mount via a fused portion in which the component of the noble metal tip and the component of the electrode base member mount are fused. In this state, the cross section area S1 at a tip side boundary between the fused portion and the noble metal tip and the cross section area S2 at a base member side boundary between the fused portion and the electrode base member mount satisfy the relational expression of S1
摘要翻译：中心电极包括锥形电极基体部件安装座和通过熔融部分接合到电极基体部件安装件的贵金属电极头，贵金属电极头部件和电极基体部件安装件的部件熔合在其中。在这种状态下，熔融部分和贵金属电极头之间的尖端侧边界处的截面面积S1和熔融部分和电极基底部件安装座之间的基底部分边界处的截面面积S2满足关系式 S1

6. 发明申请

US20090140624A1 SPARK PLUG INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING THE SPARK PLUG 有权
标题翻译：火花塞内燃机和生产火花塞的方法
公开(公告)号：US20090140624A1
公开(公告)日：2009-06-04
申请号：US12274828
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/08 , H01T21/02
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a center electrode; a substantially cylindrical insulator; a cylindrical metal shell; a ground electrode having a base end joined to a leading end portion of the metal shell and a distal end bent toward the axis line. The ground electrode includes: a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion. A noble metal tip is joined to and partially embedded in the inner peripheral surface of the thin portion and disposed to form a gap between the noble metal tip and the leading end portion of the center electrode.
摘要翻译：一种火花塞，包括：中心电极; 一个基本上圆柱形的绝缘体; 圆柱形金属外壳; 接地电极，其具有接合到所述金属壳的前端部的基端和朝向所述轴线弯曲的远端。接地电极包括：设置在基端侧的厚壁部，设置在前端侧的薄壁部和设置在厚壁部与薄壁部之间的内周面的台阶部。贵金属端头接合并部分地嵌入薄壁的内周面，并且设置成在贵金属端头和中心电极的前端部之间形成间隙。

7. 发明申请

US20090134764A1 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING THE SPARK PLUG 有权
标题翻译：用于内燃机的火花塞和用于生产火花塞的方法
公开(公告)号：US20090134764A1
公开(公告)日：2009-05-28
申请号：US12274423
申请日：2008-11-20
申请人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
发明人： Hiroyuki Kameda , Katsutoshi Nakayama , Satoshi Nagasawa
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , H01T13/32
摘要： A spark plug including: a ground electrode including a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion; a noble metal tip partially embedded in an inner peripheral surface of the thin portion; and a bulge portion provided on the inner peripheral surface of the thin portion between the stepped portion and the noble metal tip. When viewed from a side surface of the ground electrode, a relationship [a protruding height of the noble metal tip from the inner peripheral surface of the thin portion]≧[a protruding height of the bulge portion from the inner peripheral surface of the thin portion].
摘要翻译：一种火花塞，包括：接地电极，其包括设置在基端侧的厚部，设置在前端侧的薄部，以及设置在所述厚部与所述薄部之间的内周面的台阶部; 部分地嵌入所述薄部的内周面的贵金属电极头; 以及设置在阶梯部和贵金属端之间的薄壁部的内周面的凸部。当从接地电极的侧面观察时，贵金属电极头从薄壁部的内周面的突出高度的关系为=凸出部从薄壁的内周面的突出高度一部分]。

8. 发明申请

US20120038263A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20120038263A1
公开(公告)日：2012-02-16
申请号：US13266544
申请日：2010-04-30
申请人： Kohei Katsuraya , Hiroyuki Kameda , Katsutoshi Nakayama
发明人： Kohei Katsuraya , Hiroyuki Kameda , Katsutoshi Nakayama
IPC分类号： H01T13/00
CPC分类号： H01T13/20 , H01T13/32
摘要： A spark plug includes a center electrode extending in an axial direction; an insulator formed externally of the outer circumference of the center electrode; a metallic shell formed externally of the outer circumference of the insulator and having a ledge which supports the insulator; and a ground electrode joined to the metallic shell. The insulator has a support portion which faces the ledge. A “frontward direction” is defined as the direction parallel to the axial direction toward a spark portion formed between the center electrode and the ground electrode. The insulator has a diameter reduction portion whose outside diameter reduces along the frontward direction from the support portion, and a diameter increase portion whose outside diameter increases along the frontward direction from the front end of the diameter reduction portion. This restrains the generation of leak current while maintaining heat resistance of the spark plug.
摘要翻译：火花塞包括沿轴向延伸的中心电极; 绝缘体，形成在中心电极的外周的外侧; 金属外壳，形成在绝缘体的外周的外部，并具有支撑绝缘体的凸缘; 和与金属壳接合的接地电极。绝缘体具有面向突出部的支撑部。 “向前方向”被定义为朝向形成在中心电极和接地电极之间的火花部分的轴向平行的方向。该绝缘体具有直径减小部分，该直径减小部分的外径沿着从支撑部分的向前方向减小，并且其直径从直径减小部分的前端沿着向前方向增加的直径增大部分。这样可以在保持火花塞的耐热性的同时抑制泄漏电流的产生。

9. 发明授权

US07781949B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US07781949B2
公开(公告)日：2010-08-24
申请号：US11941304
申请日：2007-11-16
申请人： Kaori Kishimoto , Katsutoshi Nakayama , Hiroyuki Kameda , Yasushi Sakakura
发明人： Kaori Kishimoto , Katsutoshi Nakayama , Hiroyuki Kameda , Yasushi Sakakura
IPC分类号： H01T13/20
CPC分类号： H01T13/32
摘要： A spark plug including a ground electrode which has an excellent heat sinking ability. The ground electrode includes a core material therein. Heat received from a combustion chamber during a drive of an internal-combustion engine can be conducted to the core material. More effective heat sinking ability can be achieved because of the core material.
摘要翻译：一种火花塞，其包括具有优异的散热能力的接地电极。接地电极在其中包括芯材料。在内燃机的驱动期间从燃烧室接收的热量可以传导到芯材。由于芯材料可以实现更有效的散热能力。

10. 发明授权

US08629605B2 Spark plug having shaped insulator 有权
标题翻译：具有成型绝缘体的火花塞
公开(公告)号：US08629605B2
公开(公告)日：2014-01-14
申请号：US13266544
申请日：2010-04-30
申请人： Kohei Katsuraya , Hiroyuki Kameda , Katsutoshi Nakayama
发明人： Kohei Katsuraya , Hiroyuki Kameda , Katsutoshi Nakayama
IPC分类号： H01T13/20 , H01T13/14
CPC分类号： H01T13/20 , H01T13/32
摘要： A spark plug includes a center electrode extending in an axial direction; an insulator formed externally of the outer circumference of the center electrode; a metallic shell formed externally of the outer circumference of the insulator and having a ledge which supports the insulator; and a ground electrode joined to the metallic shell. The insulator has a support portion which faces the ledge. A “frontward direction” is defined as the direction parallel to the axial direction toward a spark portion formed between the center electrode and the ground electrode. The insulator has a diameter reduction portion whose outside diameter reduces along the frontward direction from the support portion, and a diameter increase portion whose outside diameter increases along the frontward direction from the front end of the diameter reduction portion. This restrains the generation of leak current while maintaining heat resistance of the spark plug.
摘要翻译：火花塞包括沿轴向延伸的中心电极; 绝缘体，形成在中心电极的外周的外侧; 金属外壳，形成在绝缘体的外周的外部，并具有支撑绝缘体的凸缘; 和与金属壳接合的接地电极。绝缘体具有面向突出部的支撑部。 “向前方向”被定义为朝向形成在中心电极和接地电极之间的火花部分的轴向平行的方向。该绝缘体具有直径减小部分，该直径减小部分的外径沿着从支撑部分的向前方向减小，并且其直径从直径减小部分的前端沿着向前方向增加的直径增大部分。这样可以在保持火花塞的耐热性的同时抑制泄漏电流的产生。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式