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公开(公告)号：US08324791B2
公开(公告)日：2012-12-04
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.
摘要翻译： 一种火花塞，包括：杆状中心电极; 绝缘体 金属壳; 连接到金属壳并朝向中心电极弯曲的接地电极; 接合到接地电极的端部并且经由间隙与中心电极的前端部相对的贵金属端头; 和凸起部分。 贵金属电极头的一部分嵌入到接地电极中，贵金属电极头的另一部分从接地电极的远端表面突出。 A（mm）是贵金属电极头从前端面突出的长度，满足A≥0.25mm的关系。 凸起部覆盖贵金属端头和端面之间在宽度方向上的边界的中心部分。
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公开(公告)号：US08212461B2
公开(公告)日：2012-07-03
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.
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公开(公告)号：US20090127997A1
公开(公告)日：2009-05-21
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.
摘要翻译： 一种火花塞，包括：杆状中心电极; 绝缘体 金属壳; 连接到金属壳并朝向中心电极弯曲的接地电极; 接合到接地电极的端部并且经由间隙与中心电极的前端部相对的贵金属端头; 和凸起部分。 贵金属电极头的一部分嵌入到接地电极中，贵金属电极头的另一部分从接地电极的远端表面突出。 满足A = 0.25mm的关系，其中A（mm）是贵金属端头从远端表面的突出长度。 凸起部覆盖贵金属端头和端面之间在宽度方向上的边界的中心部分。
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公开(公告)号：US09133812B2
公开(公告)日：2015-09-15
申请号：US13699113
申请日：2011-12-26
申请人： Hiroyuki Kameda
发明人： Hiroyuki Kameda
摘要： An ignition apparatus which facilitates improvement in energy efficiency as well as materializing an excellent ignitability through effectively utilizing energy used for inductive discharge as a blowout power. The ignition apparatus is used for an ignition plug that includes a center electrode, a ground electrode and a cavity surrounding at least a portion of a clearance formed between the two electrodes to thereby form a discharge space. The ignition apparatus includes a voltage application portion which applies voltage to the clearance and a power supply portion which supplies electric power to the clearance. In addition, a capacitance portion for storing a capacitance is provided, in parallel with the ignition plug, in a voltage application path of the voltage application portion.
摘要翻译： 一种点火装置，其有助于提高能量效率，并且通过有效地利用用于感应放电的能量作为吹出电力来实现优异的点火性。 点火装置用于包括中心电极，接地电极和围绕形成在两个电极之间的间隙的至少一部分的空腔的火花塞，从而形成放电空间。 点火装置包括向间隙施加电压的电压施加部分和向间隙提供电力的电源部分。 此外，在电压施加部的电压施加路径中，与火花塞并联设置用于存储电容的电容部。
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5.发明授权Overhead image-reading apparatus image processing method, and computer program product 有权架空图像读取装置图像处理方法和计算机程序产品公开(公告)号：US08736917B2
公开(公告)日：2014-05-27
申请号：US13415194
申请日：2012-03-08
申请人： Ikuo Murata , Naofumi Kado , Hiroyuki Kameda
发明人： Ikuo Murata , Naofumi Kado , Hiroyuki Kameda
IPC分类号： H04N1/04
CPC分类号： H04N1/193 , H04N2201/0434 , H04N2201/04787 , H04N2201/04789 , H04N2201/04793 , H04N2201/04794
摘要： An overhead image-reading apparatus includes a one-dimensional image sensor having imaging elements arranged in parallel to each other and is configured to change an angle between an optical axis of a light source and a medium to be read during reading of the medium, and the apparatus includes a correcting unit that corrects distortion in a main-scanning direction in read image data of the medium read by the apparatus.
摘要翻译： 顶置图像读取装置包括具有彼此平行布置的成像元件的一维图像传感器，并且被配置为在读取介质期间改变光源的光轴和要读取的介质之间的角度，以及 该装置包括校正单元，其校正由该装置读取的介质的读取图像数据中的主扫描方向的失真。
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公开(公告)号：US20120169244A1
公开(公告)日：2012-07-05
申请号：US13310080
申请日：2011-12-02
申请人： Hiroyuki Kameda , Daisuke Nakano
发明人： Hiroyuki Kameda , Daisuke Nakano
IPC分类号： H01T15/00
CPC分类号： F02P9/007 , F02P23/045 , H01T13/50
摘要： An ignition system for a plasma jet ignition plug that enables a reduction in production cost and provides excellent ignition performance through improvement of plasma formation efficiency. The ignition system includes a plasma jet ignition plug having a center electrode, a ground electrode, and a cavity surrounding at least a portion of a gap formed between the center electrode and the ground electrode to form a discharge space, and a voltage application section for applying voltage across the gap. The ignition system further includes a capacitance section having a capacitance and provided in parallel with the plasma jet ignition plug between the plasma jet ignition plug and the voltage application section.
摘要翻译： 一种用于等离子喷射火花塞的点火系统，其能够降低生产成本，并且通过提高等离子体形成效率提供优异的点火性能。 点火系统包括具有中心电极，接地电极和围绕形成在中心电极和接地电极之间的间隙的至少一部分的空腔的等离子体火花塞，以形成放电空间;以及电压施加部分，用于 在间隙上施加电压。 点火系统还包括具有静电电容的电容部分，并且与等离子喷射火花塞和电压施加部之间的等离子体喷射火花塞并联设置。
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公开(公告)号：US20120153799A1
公开(公告)日：2012-06-21
申请号：US13308802
申请日：2011-12-01
申请人： Hiroyuki Kameda
发明人： Hiroyuki Kameda
IPC分类号： H01T13/20
摘要： A plasma jet ignition plug exhibiting high plasma generation efficiency while restraining occurrence of preignition. P1 represents the position of a rear end of a region of a metallic shell ledge, the region being in contact with an insulator. P2 represents the position of a rear end of a region of the insulator ledge, the region being in contact with the center electrode. Front end surfaces of the metallic shell, the insulator, and center electrode, an imaginary plane S1 which is perpendicular to the axis and contains position P1, and an imaginary plane perpendicular to the axis and contains position P2 are disposed in this order from front side to rear side along the axis. The axial distance A from the front end surface of the insulator to imaginary plane S1 and axial distance B from the imaginary plane S1 to imaginary plane S2 satisfy 0.5×A≦B.
摘要翻译： 等离子体喷射火花塞，其具有高等离子体产生效率，同时抑制预发射的发生。 P1表示金属壳凸缘的区域的后端的位置，该区域与绝缘体接触。 P2表示绝缘体凸缘的区域的后端的位置，该区域与中心电极接触。 金属外壳，绝缘体和中心电极的前端面，垂直于轴线并包含位置P1的虚拟平面S1和垂直于轴线并包含位置P2的假想平面以从前侧开始的顺序 沿着轴的后侧。 B从绝缘体的前端面到假想平面S1的轴向距离A以及从虚拟平面S1到虚拟平面S2的轴向距离B满足0.5×A＆
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公开(公告)号：US08203258B2
公开(公告)日：2012-06-19
申请号：US12998534
申请日：2009-11-02
申请人： Hiroyuki Kameda , Tomoaki Kato
发明人： Hiroyuki Kameda , Tomoaki Kato
IPC分类号： H01T13/20
CPC分类号： H01T13/467 , H01T13/32
摘要： A spark plug having an electrode, an insulator, a metallic shell, a main ground electrode, and at least two auxiliary ground electrodes.
摘要翻译： 一种具有电极，绝缘体，金属壳，主接地电极和至少两个辅助接地电极的火花塞。
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公开(公告)号：US20120080995A1
公开(公告)日：2012-04-05
申请号：US13239891
申请日：2011-09-22
摘要： A plasma jet ignition plug that reliably prevents current leakage with restraint on variation in the position of a ground electrode relative to an insulator and on overheat of the ground electrode, for stable generation of plasma. The plug includes an insulator having an axial bore extending in the direction of an axis CL1, a center electrode inserted in the axial bore, a metallic shell disposed externally of the outer circumference of the insulator, and a ground electrode fixed to the metallic shell, and has a cavity defined by the wall surface of the axial bore and the front end surface of the center electrode. Supports intervene between the insulator and the ground electrode. A space formed radially outward of the supports and a space formed radially inward of the support communicate with each other.
摘要翻译： 一种等离子喷射火花塞，其可靠地防止接地电极相对于绝缘体的位置变化和接地电极过热时的电流泄漏，从而稳定地产生等离子体。 插塞包括具有沿轴线CL1的方向延伸的轴向孔的绝缘体，插入在轴向孔中的中心电极，设置在绝缘体的外周的外部的金属壳和固定到金属壳的接地电极， 并且具有由轴向孔的壁表面和中心电极的前端表面限定的空腔。 支持绝缘体和接地电极之间的介入。 形成在所述支撑体的径向外侧的空间和从所述支撑体的径向内侧形成的空间相互连通。
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公开(公告)号：US20120038263A1
公开(公告)日：2012-02-16
申请号：US13266544
申请日：2010-04-30
IPC分类号： H01T13/00
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。
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