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

US09054501B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US09054501B2
公开(公告)日：2015-06-09
申请号：US14238559
申请日：2012-08-31
申请人： Kengo Fujimura , Hirokazu Kurono , Toshitaka Honda
发明人： Kengo Fujimura , Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T13/20 , H01T13/34
CPC分类号： H01T13/20 , H01T13/34
摘要： A spark plug includes: a center electrode including a rod portion and a head portion and having a diameter larger than the diameter of the rod portion; an insulator having an axial bore, the center electrode being disposed in the axial bore at its front end; and a seal portion for fixing the center electrode in the axial bore. The insulator comprises: a leg portion inner circumferential surface; a cylindrical trunk portion inner circumferential surface which surrounds the head portion; and a support surface which supports the head portion. The seal portion has: a seal portion outer circumferential surface; a seal portion abutment surface; and a connecting surface. In a cross section of the seal portion, a curve, which is part of the contour of the seal portion and is included in the connecting surface, has a radius of curvature R of 0.1 mm or more.
摘要翻译：火花塞包括：中心电极，包括杆部分和头部部分，其直径大于杆部分的直径; 具有轴向孔的绝缘体，所述中心电极在其前端设置在所述轴向孔中; 以及用于将中心电极固定在轴向孔中的密封部分。绝缘体包括：腿部内周面; 围绕头部的圆筒状的主干部内周面; 以及支撑头部的支撑面。密封部具有：密封部外周面; 密封部分邻接表面; 和连接面。在密封部分的横截面中，作为密封部分的轮廓的一部分并且包括在连接表面中的曲线具有0.1mm或更大的曲率半径R.

2. 发明申请

US20140210335A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20140210335A1
公开(公告)日：2014-07-31
申请号：US14238559
申请日：2012-08-31
申请人： Kengo Fujimura , Hirokazu Kurono , Toshitaka Honda
发明人： Kengo Fujimura , Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T13/20
CPC分类号： H01T13/20 , H01T13/34
摘要： A spark plug includes: a center electrode including a rod portion and a head portion and having a diameter larger than the diameter of the rod portion; an insulator having an axial bore, the center electrode being disposed in the axial bore at its front end; and a seal portion for fixing the center electrode in the axial bore. The insulator comprises: a leg portion inner circumferential surface; a cylindrical trunk portion inner circumferential surface which surrounds the head portion; and a support surface which supports the head portion. The seal portion has: a seal portion outer circumferential surface; a seal portion abutment surface; and a connecting surface. In a cross section of the seal portion, a curve, which is part of the contour of the seal portion and is included in the connecting surface, has a radius of curvature R of 0.1 mm or more.
摘要翻译：火花塞包括：中心电极，包括杆部分和头部部分，其直径大于杆部分的直径; 具有轴向孔的绝缘体，所述中心电极在其前端设置在所述轴向孔中; 以及用于将中心电极固定在轴向孔中的密封部分。绝缘体包括：腿部内周面; 围绕头部的圆筒状的主干部内周面; 以及支撑头部的支撑面。密封部具有：密封部外周面; 密封部分邻接表面; 和连接面。在密封部分的横截面中，作为密封部分的轮廓的一部分并且包括在连接表面中的曲线具有0.1mm或更大的曲率半径R.

3. 发明授权

US08672722B2 Spark plug manufacturing method 有权
标题翻译：火花塞制造方法
公开(公告)号：US08672722B2
公开(公告)日：2014-03-18
申请号：US14002128
申请日：2012-01-12
申请人： Kazumichi Hirose , Hirokazu Kurono , Toshitaka Honda
发明人： Kazumichi Hirose , Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T21/02
CPC分类号： H01T21/02 , H01T13/60
摘要： A spark plug manufacturing method providing a spark plug equipped with an insulator having dielectric strength by means of judging whether or not the insulator has a defect. A defect judgement step judges whether or not the insulator has a defect, by generating an electric potential difference between the center electrode and the metallic shell under conditions such that an assembly of the center electrode, metallic shell, and insulator is disposed within a pressure vessel; a high-pressure atmosphere higher in pressure than the atmospheric pressure is established within the pressure vessel; a space allowing the presence of insulating oil is a space surrounded by the packing, the metallic shell, the insulator, and an imaginary plane containing a forward end surface of the metallic shell; and the insulating oil is present at least in a region of the space where the distance between the ledge and insulator becomes shortest.
摘要翻译：一种火花塞制造方法，其通过判断绝缘子是否具有缺陷，提供配备有具有绝缘强度的绝缘体的火花塞。在缺陷判定步骤中，通过在中心电极和金属壳体之间产生电位差使得中心电极，金属壳体和绝缘体的组装设置在压力容器内的条件下来判断绝缘体是否具有缺陷 ; 在压力容器内建立高于大气压力的高压气氛; 允许绝缘油存在的空间是由填料，金属壳，绝缘体和包含金属壳的前端表面的假想平面包围的空间; 并且绝缘油至少存在于凸缘和绝缘体之间的距离最短的空间的区域中。

4. 发明授权

US08564184B2 Spark plug and process for producing spark plug 有权
标题翻译：火花塞和生产火花塞的过程
公开(公告)号：US08564184B2
公开(公告)日：2013-10-22
申请号：US13497904
申请日：2010-06-23
申请人： Hirokazu Kurono , Toshitaka Honda , Katsuya Takaoka , Hiroki Takeuchi , Kuniharu Tanaka , Takeshi Mitsuoka
发明人： Hirokazu Kurono , Toshitaka Honda , Katsuya Takaoka , Hiroki Takeuchi , Kuniharu Tanaka , Takeshi Mitsuoka
IPC分类号： H01T13/20 , H01T13/36 , H01T13/38 , H01T21/00
CPC分类号： H01T13/36 , C04B35/117 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3418 , C04B2235/5436 , C04B2235/5445 , C04B2235/604 , C04B2235/77 , C04B2235/963 , H01T13/38 , H01T21/02
摘要： A spark plug that is equipped with an insulator that has a stem portion on a front end side, a center electrode, and a main metal member that retains the insulator at an engaging projection portion, wherein an inner diameter DIN of the engaging projection portion, the maximum outer diameter dOUT of the stem portion, which faces an inner circumferential surface of the engaging projection portion, its inner diameter dIN, and dielectric constant ∈ of the insulator satisfy the condition of “(DIN−dOUT)/2≦0.40 (mm)”, “(dOUT−dIN)/2≦1.65 (mm)”, and “∈≧9.4”.
摘要翻译：一种火花塞，其配备有在前端侧具有杆部的绝缘体，中心电极和将绝缘体保持在接合突出部的主金属构件，其中，接合突起部的内径DIN，杆部的面向接合突出部的内周面的最大外径dOUT，其内径dIN和绝缘体的介电常数E满足条件“（DIN- dOUT )/2@0.40（mm））“，”（dOUT-dIN)/2@1.65（mm）“，”E“= 9.4”。

5. 发明授权

US08482187B2 Spark plug and process for producing spark plug 有权
标题翻译：火花塞和生产火花塞的过程
公开(公告)号：US08482187B2
公开(公告)日：2013-07-09
申请号：US13382116
申请日：2010-06-28
申请人： Katsuya Takaoka , Hironori Uegaki , Hirokazu Kurono , Toshitaka Honda
发明人： Katsuya Takaoka , Hironori Uegaki , Hirokazu Kurono , Toshitaka Honda
IPC分类号： F02M57/06
CPC分类号： H01T13/38 , C04B35/117 , C04B35/62695 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3418 , C04B2235/442 , C04B2235/528 , C04B2235/5427 , C04B2235/5436 , C04B2235/656 , C04B2235/6562 , C04B2235/6567 , C04B2235/77 , C04B2235/786 , C04B2235/85 , C04B2235/96
摘要： A spark plug which exhibits high dielectric strength at high temperature and which is unlikely to be deteriorated in dielectric strength is provided. The spark plug includes a center electrode, an insulator, and a metallic shell. The insulator includes an alumina-based sintered body which contains a silicon component, a Group II element component, and a rare earth element component. The alumina-based sintered body is composed of a glass phase and an alumina crystal phase as observed through X-ray diffraction analysis. When the grain boundary phase of the alumina-based sintered body is observed under a transmission electron microscope, and the weight ratio between an alkali metal component and the rare earth element component as reduced to oxides thereof [alkali metal/rare earth element] is calculated at 30 circular spots, each having a diameter of 0.3 nm, selected arbitrarily in a field of observation, the average of the weight ratios of the 30 spots falls within a range of 0.01 to 1.0.
摘要翻译：提供一种在高温下表现出高介电强度并且不太可能劣化介电强度的火花塞。火花塞包括中心电极，绝缘体和金属壳。绝缘体包括含有硅成分，II族元素成分和稀土元素成分的氧化铝系烧结体。氧化铝基烧结体通过X射线衍射分析观察，由玻璃相和氧化铝结晶相组成。当在透射电子显微镜下观察氧化铝基烧结体的晶界相时，计算碱金属成分和稀土元素成分还原为氧化物[碱金属/稀土元素]的重量比在30个圆点处，每个具有0.3nm的直径，在观察领域任意选择，30个点的重量比的平均值在0.01至1.0的范围内。

6. 发明申请

US20110005485A1 INSULATOR FOR SPARK PLUG, PROCESS FOR PRODUCING THE INSULATOR, SPARK PLUG, AND PROCESS FOR PRODUCING THE SPARK PLUG 审中-公开
标题翻译：火花塞绝缘子，生产绝缘子的过程，火花塞和生产火花塞的工艺
公开(公告)号：US20110005485A1
公开(公告)日：2011-01-13
申请号：US12736235
申请日：2009-03-24
申请人： Hirokazu Kurono , Toshitaka Honda
发明人： Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T13/08 , B29C45/14
CPC分类号： H01T13/38 , H01T21/02
摘要： A method for manufacturing a ceramic insulator for a spark plug.
摘要翻译：一种用于制造用于火花塞的陶瓷绝缘体的方法。

7. 发明授权

US09077157B2 Ignition plug having a rear trunk portion that provides sufficient strength 有权
标题翻译：点火塞具有提供足够强度的后躯干部分
公开(公告)号：US09077157B2
公开(公告)日：2015-07-07
申请号：US14232101
申请日：2012-07-05
申请人： Hirokazu Kurono , Toshitaka Honda
发明人： Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T13/20 , H01T13/34
CPC分类号： H01T13/20 , H01T13/34
摘要： An ignition plug includes a ceramic insulator having an axial bore, a metallic shell, and a terminal electrode. The terminal electrode has a leg portion inserted into a rear side of the axial bore, and a head portion formed on a rear side of the leg portion and having an outside diameter greater than that of the leg portion. The insulator includes a rear trunk portion exposed from the rear end of the metallic shell, which has a maximum outside diameter of 9.5 mm or less. The insulator has an end-surface seat portion located forward of its rear end and being in contact with the forward end surface of the head portion, and an outer circumferential portion into which at least a forward end portion of the head portion is inserted and which is located externally of the outer circumference of the head portion.
摘要翻译：火花塞包括具有轴向孔，金属壳和端子电极的陶瓷绝缘体。端子电极具有插入轴向孔的后侧的脚部和形成在腿部的后侧上并且具有大于腿部的外径的头部的头部。绝缘体包括从金属壳的后端露出的后躯干部分，其具有最大外径9.5mm或更小。绝缘体具有位于其后端的前端并与头部的前端面接触的端面座部，以及插入头部的至少前端部的外周部，位于头部的外周的外侧。

8. 发明授权

US08469758B2 Insulator for spark plug, and method for manufacturing spark plug 有权
标题翻译：火花塞绝缘子及火花塞的制造方法
公开(公告)号：US08469758B2
公开(公告)日：2013-06-25
申请号：US13280428
申请日：2011-10-25
申请人： Toshitaka Honda , Hirokazu Kurono
发明人： Toshitaka Honda , Hirokazu Kurono
IPC分类号： H01T21/00 , H01T21/02
CPC分类号： H01T13/38 , B28B1/30 , B28B1/44 , B28B3/003 , H01T21/02 , Y10T29/49227
摘要： A method for manufacturing an insulator includes: preparing a press pin and a forming die having a cavity, the press pin including a pin-side spiral portion formed on a first position; filling a raw powder into the cavity; arranging the press pin within the cavity; pressing the raw powder within the cavity along with the press pin, and obtaining a green body formed with a green body-side spiral portion; releasing the green body along with the press pin from the cavity; retreating the press pin with respect to the green body while rotating the press pin relative to the green body around an axis, and extracting the press pin from the green body; and removing an unnecessary portion from the green body. The first position is positioned such that the green body-side spiral portion is located in the unnecessary portion of the green body.
摘要翻译：制造绝缘体的方法包括：制备压针和具有空腔的成形模，所述压销包括形成在第一位置的销侧螺旋部; 将原料粉末填充到空腔中; 将压脚布置在腔内; 与压销一起挤压空腔内的原料粉末，得到形成有生坯侧螺旋部分的生坯; 释放生坯与压针一起从腔体释放出来; 相对于生坯在相对于生坯体旋转压销的同时相对于生坯体退回压头，并从生坯体提取压销; 并从生坯中去除不需要的部分。第一位置被定位成使得生坯体侧螺旋部分位于生坯体的不必要部分中。

9. 发明授权

US08390183B2 Spark plug and method for manufacturing spark plug 有权
标题翻译：火花塞和火花塞的制造方法
公开(公告)号：US08390183B2
公开(公告)日：2013-03-05
申请号：US12598482
申请日：2009-03-26
申请人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
发明人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
IPC分类号： H01T21/02
CPC分类号： H01T13/38 , C04B35/111 , C04B35/6261 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3418 , C04B2235/5436 , C04B2235/656 , C04B2235/6567 , C04B2235/77 , C04B2235/786 , C04B2235/80 , C04B2235/96 , H01T21/02
摘要： This invention has an object to provide a spark plug exhibiting high withstand voltage characteristics and high strength at high temperature, formed by an alumina-based sintered body prepared with excellent processability and high productivity, and a method for manufacturing the spark plug. This invention relates to a spark plug 1 including an insulator 3, wherein the insulator 3 includes a dense alumina-based sintered body having an average crystal particle diameter of 1.50 μm or more, and the alumina-based sintered body contains Si, a Group 2 element component containing Ba and a Group 2 element other than those, and a rare earth element component, such that a ratio of a content S of the Si component to a total content of the content S and a content A of the Group 2 element component is 0.60 or more, and a method for manufacturing the spark plug 1 prepared through a grinding-shaping process in which the insulator 3 is ground before burning to shape the same.
摘要翻译：本发明的目的是提供一种具有高耐压特性和高温强度的火花塞，由具有优异的加工性和高生产率制备的氧化铝基烧结体形成，以及一种用于制造火花塞的方法。本发明涉及一种包括绝缘体3的火花塞1，其中绝缘体3包括平均结晶粒径为1.50μm以上的致密的氧化铝基烧结体，氧化铝基烧结体包含Si，第2组含有Ba的元素成分和除此以外的第2族元素的元素成分和稀土元素成分，使得Si成分的含量S与含量S的总含量的比率和第2族元素成分的含量A 为0.60以上，以及通过研磨成形工序制造火花塞1的方法，其中绝缘体3在燃烧之前被磨削成形。

10. 发明申请

US20100136867A1 SPARK PLUG AND METHOD FOR MANUFACTURING SPARK PLUG 有权
标题翻译：火花插头和制造火花插头的方法
公开(公告)号：US20100136867A1
公开(公告)日：2010-06-03
申请号：US12598482
申请日：2009-03-26
申请人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
发明人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
IPC分类号： H01T21/02 , H01T13/38
CPC分类号： H01T13/38 , C04B35/111 , C04B35/6261 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3418 , C04B2235/5436 , C04B2235/656 , C04B2235/6567 , C04B2235/77 , C04B2235/786 , C04B2235/80 , C04B2235/96 , H01T21/02
摘要： This invention has an object to provide a spark plug exhibiting high withstand voltage characteristics and high strength at high temperature, formed by an alumina-based sintered body prepared with excellent processability and high productivity, and a method for manufacturing the spark plug. This invention relates to a spark plug 1 including an insulator 3, wherein the insulator 3 includes a dense alumina-based sintered body having an average crystal particle diameter of 1.50 μm or more, and the alumina-based sintered body contains Si, a Group 2 element component containing Ba and a Group 2 element other than those, and a rare earth element component, such that a ratio of a content S of the Si component to a total content of the content S and a content A of the Group 2 element component is 0.60 or more, and a method for manufacturing the spark plug 1 prepared through a grinding-shaping process in which the insulator 3 is ground before burning to shape the same.
摘要翻译：本发明的目的是提供一种具有高耐压特性和高温强度的火花塞，由具有优异的加工性和高生产率制备的氧化铝基烧结体形成，以及一种用于制造火花塞的方法。本发明涉及一种包括绝缘体3的火花塞1，其中绝缘体3包括平均结晶粒径为1.50μm以上的致密的氧化铝基烧结体，氧化铝基烧结体包含Si，第2组含有Ba的元素成分和除此以外的第2族元素的元素成分和稀土元素成分，使得Si成分的含量S与含量S的总含量的比率和第2族元素成分的含量A 为0.60以上，以及通过研磨成形工序制造火花塞1的方法，其中绝缘体3在燃烧之前被磨削成形。

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