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公开(公告)号：US5269282A
公开(公告)日：1993-12-14
申请号：US865908
申请日：1992-04-09
申请人： Shigeru Miyata , Hideji Yoshida , Yoshihiro Matsubara , Yasuo Ito
发明人： Shigeru Miyata , Hideji Yoshida , Yoshihiro Matsubara , Yasuo Ito
CPC分类号： F02P17/12 , F02P2017/123 , F02P2017/125
摘要： In a misfire detector for use in an internal combustion engine having an ignition coil, an electrical interrupter circuit interrupts a primary current flowing through a primary circuit of the ignition coil by which a spark plug is energized. A voltage divider circuit detects a divided voltage of a spark plug voltage applied across the spark plug. A spark plug voltage detector circuit is provided to detect an attenuation characteristic of a spark plug voltage waveform presented subsequent to a time period predetermined either during a spark action of the spark plug or after an end of the spark action of the spark plug. A peak hold circuit is provided to hold a peak voltage of the spark plug voltage waveform presented after the end of the spark action of the spark plug, so that a distinction circuit determines a misfire on the basis of a peak voltage level or the attenuation characteristics of the spark plug voltage waveform.
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公开(公告)号：US20070228916A1
公开(公告)日：2007-10-04
申请号：US11730172
申请日：2007-03-29
IPC分类号： H01T13/20
CPC分类号： H01T13/467 , H01T13/32 , H01T13/39 , H01T13/52
摘要： A spark plug including: a cylindrical insulator having an axial hole extending through the insulator in an axial direction; a center electrode inserted in the axial hole; a metal shell provided around an outer periphery of the insulator and having a leading end surface, from which a leading end surface of the insulator protrudes; a ground electrode having a base end bonded to the leading end surface of the metal shell; and a noble metal tip disposed on a distal end of the ground electrode, an end of the noble metal tip protruding toward the center electrode in a radial direction, wherein: the spark plug forming a spark discharge path upon application of a discharging voltage between the protruding end of the noble metal tip and an end of the center electrode, the spark discharge path including an aerial discharge gap between a part of the protruding end of the noble metal tip and a part of the end of the insulator and a surface-creeping discharge path beginning at a part of the end of the insulator and a part of the center electrode and extending along the end surface of the insulator; and the noble metal tip protruding from the leading end of the ground electrode by a protruding length of more than 0.2 mm.
摘要翻译： 一种火花塞，包括：具有沿轴向延伸穿过绝缘体的轴向孔的圆柱形绝缘体; 插入所述轴向孔中的中心电极; 金属壳体，设置在所述绝缘体的外周的周围，并具有前端面，所述绝缘子的前端表面从所述前端表面突出; 接地电极，其具有接合到所述金属壳的前端表面的基端; 以及设置在所述接地电极的前端的贵金属电极头，所述贵金属电极头端部沿着径向突出于所述中心电极，其特征在于，所述火花塞在形成所述火花放电路径之间， 贵金属端头的突出端和中心电极的端部，火花放电路径包括在贵金属电极头的突出端的一部分和绝缘子的端部的一部分之间的空气放电间隙，以及表面爬行 从所述绝缘体的端部的一部分开始的放电路径和所述中心电极的一部分并且沿着所述绝缘体的端面延伸; 所述贵金属电极头从所述接地电极的前端突出大于0.2mm的突出长度。
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公开(公告)号：US20070126330A1
公开(公告)日：2007-06-07
申请号：US10583252
申请日：2004-12-15
申请人： Hiroaki Kuki , Akira Suzuki , Yoshihiro Matsubara , Kazuhiko Mori
发明人： Hiroaki Kuki , Akira Suzuki , Yoshihiro Matsubara , Kazuhiko Mori
IPC分类号： H01T13/20
摘要： There is provided a spark plug wherein an insulator and a metallic shell, when observed in a section made by a plane including an axis of a spark plug, have therebetween a gap of less than 0.45 mm at a more front end side than an engagement position of a packing and a first insulator stepped portion, and the gap is provided axially from a most front end side engagement position of the packing and a first insulator stepped portion as a starting point to a finishing point that is apart from the starting point by 1.2 mm or more toward the front end side while being apart from a front end surface of the metallic shell by 7.9 mm or more toward a rear end side.
摘要翻译： 提供了一种火花塞，其中当在由包括火花塞的轴线的平面制成的部分中观察时，绝缘体和金属壳在其前端侧的接合位置之间具有小于0.45mm的间隙 并且所述间隙从所述衬垫的最前端侧接合位置轴向设置，所述间隙作为起始点设置在与所述起始点相距1.2的终点处的第一绝缘体台阶部 mm以上朝向前端侧，同时从后端侧朝向金属壳的前端面离开7.9mm以上。
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公开(公告)号：US06923699B2
公开(公告)日：2005-08-02
申请号：US10372830
申请日：2003-02-26
CPC分类号： H01T21/02 , Y10T29/5193 , Y10T29/5195
摘要： A method of making a spark plug having a noble metal chip joined to an electrode main body of a ground electrode by interposing therebetween an intermediate member. The method comprises the steps of prior to joining the noble metal chip to the electrode main body, joining the intermediate member and the noble metal chip together, placing a noble metal chip and intermediate member assembly on the electrode main body in a way as to allow the intermediate member to contact the electrode main body, and welding the electrode main body and the intermediate member together while restricting relative movement of the electrode main body and the intermediate member without applying an urging force to a joint between the intermediate member and the noble metal chip.
摘要翻译： 一种制造火花塞的方法，该火花塞具有通过插入中间构件而接合到接地电极的电极主体上的贵金属芯片。 该方法包括以下步骤：在将贵金属芯片接合到电极主体之前，将中间构件和贵金属芯片接合在一起，将贵金属芯片和中间构件组件放置在电极主体上以允许 所述中间部件与所述电极主体接触，并且将所述电极主体和所述中间部件焊接在一起，同时限制所述电极主体和所述中间部件的相对移动，而不向所述中间部件和所述贵金属 芯片。
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55.发明授权POS terminal, method of controlling the POS terminal, POS system using the POS terminal, and information storage medium 失效POS终端，POS终端的控制方法，使用POS终端的POS系统和信息存储介质公开(公告)号：US06845363B1
公开(公告)日：2005-01-18
申请号：US09530672
申请日：1999-09-02
申请人： Yoshihiro Matsubara , Yukihiro Mikami , Chris Belk
发明人： Yoshihiro Matsubara , Yukihiro Mikami , Chris Belk
CPC分类号： G06Q30/02 , G06Q20/20 , G06Q20/201 , G06Q20/202 , G06Q20/204 , G06Q20/387 , G07G1/145 , Y10S707/99953 , Y10S707/99954
摘要： The POS system has at least one POS terminal (101) and a store controller (121) connected to the POS terminal. The POS terminal has a program storage device (107), a program updating device (106), a program executing device (106), a goods information storage device (107) and a goods information updating device (106). The program storage device and the goods information storage device serve to store data in a non-volatile storage device. When the POS terminal (101) is started up, the program updating device and the goods information updating device operate to compare the data stored in the non-volatile storage device (107) and the data stored in the store controller (121). If the program and the goods information stored in the non-volatile storage device is incorrect or older than those stored in the store controller, the program updating device and the goods information updating device serve to read the program and the goods information from the store controller and store the read program and goods information in the non-volatile storage device.
摘要翻译： POS系统具有连接到POS终端的至少一个POS终端（101）和存储控制器（121）。 POS终端具有程序存储装置（107），程序更新装置（106），程序执行装置（106），商品信息存储装置（107）和商品信息更新装置（106）。 程序存储装置和商品信息存储装置用于将数据存储在非易失性存储装置中。 当POS终端（101）启动时，程序更新装置和商品信息更新装置操作以比较存储在非易失性存储装置（107）中的数据和存储在存储控制器（121）中的数据。 如果存储在非易失性存储装置中的程序和商品信息不正确或比存储在存储控制器中的货物信息更旧，则程序更新装置和商品信息更新装置用于从商店控制器读取程序和商品信息 并将读取的程序和商品信息存储在非易失性存储装置中。
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公开(公告)号：US06472801B1
公开(公告)日：2002-10-29
申请号：US09603612
申请日：2000-06-26
IPC分类号： H01T1320
CPC分类号： H01T13/52
摘要： In a creeping discharge type spark plug, the firing surface forming portions of a center electrode and a ground electrode are made of a metallic material containing a corrosion impeding component consisting of one or more of Fe, Cr and Cu. The spark plug is attached to an internal combustion engine. When it is operated under conditions of a predetermined high speed and high load, a corrosion impeding layer containing a corrosion impeding component is formed on the surface of the top end of an insulating member, with progression of spark discharge in spark discharge gaps. The corrosion impeding layer thus formed protects the center electrode from the attack by the creeping discharge spark. Therefore, the channeling is considerably effectively prevented or restricted.
摘要翻译： 在蠕变放电型火花塞中，中心电极和接地电极的烧成面形成部分由含有由Fe，Cr和Cu中的一种或多种组成的防腐蚀部件的金属材料制成。 火花塞连接在内燃机上。 当其在预定的高速和高负载的条件下运行时，在绝缘构件的顶端的表面上形成包含防腐蚀部件的防腐层，伴随着火花放电间隙的火花放电。 这样形成的防腐层可以保护中心电极免受蠕变放电火花的攻击。 因此，有效地防止或限制了渠道化。
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公开(公告)号：US06326720B1
公开(公告)日：2001-12-04
申请号：US09398900
申请日：1999-09-20
申请人： Shoichiro Ito , Yoshihiro Matsubara
发明人： Shoichiro Ito , Yoshihiro Matsubara
IPC分类号： H01T1320
CPC分类号： H01T13/41 , F02B2275/18 , H01T13/39
摘要： A spark plug includes a spark portion of an Ir-based metal and a resistor disposed between a center electrode and a metallic terminal and adapted to establish an electric resistance of not less than 10 k&OHgr;, preferably not less than 15 k&OHgr;, but not greater than 25 k&OHgr; as measured between the center electrode and the metallic terminal. Thus, even in a system in which an ignition coil is connected directly to the spark plug without use of a high tension cable, an electrical discharge with a relatively weak current, such as a glow discharge, can be maintained stably, so that even at high speed or heavy load operation, consumption of the spark portion caused by volatilization of Ir through oxidation can be suppressed, thereby extending spark plug life.
摘要翻译： 火花塞包括Ir基金属的火花部分和设置在中心电极和金属端子之间的电阻器，并适于建立不小于10kOMEGA的电阻，优选不小于15kOMEGA，但不大于 25 kOMEGA，在中心电极和金属端子之间测量。 因此，即使在不使用高压电缆的情况下将点火线圈直接连接到火花塞的系统中，也可以稳定地保持具有相对弱电流（例如辉光放电）的放电，使得即使在 高速或重负荷运转时，可以抑制由Ir的氧化挥发引起的火花部分的消耗，从而延长火花塞寿命。
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公开(公告)号：US6166480A
公开(公告)日：2000-12-26
申请号：US124903
申请日：1998-07-30
申请人： Kenji Ishida , Yoshihiro Matsubara
发明人： Kenji Ishida , Yoshihiro Matsubara
CPC分类号： H01T13/20 , F02B2275/18
摘要： A spark plug (1) comprises a center electrode (5), an insulator (3), a metallic shell (2), and a ground electrode (6). The center electrode (5) comprises a body portion (12) having a cylindrical peripheral surface and a front-end-side opposing face (11) opposed in generally parallel to a side face of the ground electrode (6), and a protruding portion (15) which is protruded from the front-end-side opposing face (11) at a position decentered toward one side opposite to the ground electrode (6) with respect to a center axis line of the body portion (12) and which has a top face (14) formed generally parallel to the side face of the ground electrode (6). Then, given a length D of a line segment formed by an intersection that an imaginary plane including the center axis line of the body portion (12) and a center axis line of the ground electrode (6) intersects the front-end-side opposing face (11), and a protruding height h to which the protruding portion (15) protrudes from the front-end-side opposing face (11), a value of h/D is set to not less than 0.2. As a result, mixed air can be smoothly fed to around a spark discharge gap g, and moreover the flame extinction phenomenon becomes unlikely to occur. Thus, a spark plug superior in ignitability can be realized.
摘要翻译： 火花塞（1）包括中心电极（5），绝缘体（3），金属壳（2）和接地电极（6）。 中心电极（5）包括具有圆筒形周面的主体部分（12）和大体上平行于接地电极（6）的侧面相对的前端侧相对面（11），以及突出部分 （15），其相对于所述主体部（12）的中心轴线在与所述接地电极（6）相反的一侧偏离的位置处从所述前端侧相对面（11）突出，并且具有 大致平行于接地电极（6）的侧面形成的顶面（14）。 然后，给定由包括主体部分（12）的中心轴线的虚拟平面和接地电极（6）的中心轴线的假想平面与前端相对的交点形成的线段的长度D 面（11）和突出部（15）从前端侧相对面（11）突出的突出高度h，将h / D的值设定为0.2以上。 结果，可以将混合空气平稳地供给到火花放电间隙g周围，而且不太可能发生火焰熄灭现象。 因此，可以实现点火性优异的火花塞。
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公开(公告)号：US5873338A
公开(公告)日：1999-02-23
申请号：US870907
申请日：1997-06-06
摘要： A spark plug has a cylindrical metal shell, a ground electrode and an insulator fixedly supported within the metal shell with a front end of the insulator extended beyond a front end of the metal shell. The insulator has an axial bore in which a center electrode is placed to form a spark gap with the ground electrode. The front end of the metal shell is generally flush with or somewhat recessed into an inner wall of a combustion chamber of an internal combustion engine when the spark plug is mounted on a cylinder head of the engine. The front end of the insulator extends at least 4.0 mm from the front end of the metal shell.
摘要翻译： 火花塞具有圆柱形金属外壳，接地电极和固定地支撑在金属外壳内的绝缘体，绝缘体的前端延伸超过金属外壳的前端。 绝缘体具有轴向孔，其中放置中心电极以与接地电极形成火花隙。 当火花塞安装在发动机的气缸盖上时，金属外壳的前端通常与内燃机的燃烧室的内壁齐平或稍微凹陷。 绝缘体的前端从金属外壳的前端延伸至少4.0毫米。
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公开(公告)号：US5831377A
公开(公告)日：1998-11-03
申请号：US800019
申请日：1997-02-13
CPC分类号： H01T13/20
摘要： In a spark plug including a cylindrical metal shell whose inner wall has a ledge portion, an insulator having a seat portion which engages with a rear slope surface of the ledge portion to be supported within the metal shell, a center electrode supported with an axial bore of the insulator, and a ground electrode extended from the metal shell to form a spark gap with the center electrode. A dimensional relationship among (A), (B) and (g) is defined as follows: {(B-A)/2}.gtoreq.0.8.times.(g) or {(B-A)/2}.gtoreq.0.9.times.(g). Where B (mm) is an inner diameter of a metal shell portion which surrounds an insulator nose, A (mm) is a base diameter of the insulator nose, and g (mm) is a width dimension of the spark gap.
摘要翻译： 在包括其内壁具有凸缘部分的圆柱形金属壳的火花塞中，具有与所述凸缘部的后倾斜表面接合以支撑在所述金属壳内的座部的绝缘体，支撑在所述金属壳内的中心电极， 的绝缘体，以及从金属壳延伸的接地电极，与中心电极形成火花隙。 （A），（B）和（g）之间的尺寸关系定义如下：{（BA）/ 2}> / = 0.8x（g）或{（BA）/ 2}> / = 0.9x ）。 其中B（mm）是围绕绝缘体鼻部的金属壳部分的内径，A（mm）是绝缘子鼻的基部直径，g（mm）是火花隙的宽度尺寸。
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