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公开(公告)号：US5347855A
公开(公告)日：1994-09-20
申请号：US29235
申请日：1993-03-10
CPC分类号： H01T13/467 , F02P17/12 , F02P2017/121 , F02P2017/123 , F02P2017/125
摘要： In a misfire detector device for use in internal combustion engine, an electrical interrupter circuit on-off actuates a primary current flowing through a primary circuit of an ignition coil to induce a sparkplug voltage which is applied to a multi-electrode type spark plug. A check diode or a series gap is provided in a secondary circuit of the ignition coil so as to prevent a current flowing back to the ignition coil. A sparkplug voltage detector circuit detects an attenuation time length of a sparkplug voltage waveform presented subsequent to a predetermined time period after an end of a spark action of the spark plug. On the basis of the attenuation time length, a distinction circuit determines whether a misfire occurs in a cylinder of an internal combustion engine.
摘要翻译： 在用于内燃机的失火检测装置中，电断路器电路开关致动流过点火线圈的初级电路的初级电流，以引起施加到多电极型火花塞的火花塞电压。 在点火线圈的次级电路中设置校验二极管或串联间隙，以防止电流回流到点火线圈。 火花塞电压检测器电路检测在火花塞的火花动作结束之后的预定时间段之后呈现的火花塞电压波形的衰减时间长度。 基于衰减时间长度，区分电路确定在内燃机的气缸中是否发生失火。
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公开(公告)号：US5347856A
公开(公告)日：1994-09-20
申请号：US25346
申请日：1993-03-03
CPC分类号： F02P17/12 , H01T13/39 , F02P2017/121 , F02P2017/123 , F02P2017/125
摘要： In a misfire detector device for use in internal combustion engine, an electrical interrupter circuit on-off actuates a primary current flowing through a primary circuit of an ignition coil to induce a spark plug voltage. A check diode is provided in a secondary circuit of the ignition coil to prevent a current flowing back to the ignition coil. The spark plug has a center electrode, a front end of which is projected from an insulator, and an outer surface area of the projected front end being 25 mm.sup.2 or more. A spark plug voltage detector circuit detects an attenuation time length of a spark plug voltage waveform presented subsequent to a predetermined time period occurring after an end of a spark action of the spark plug. On the basis of the attenuation time length, a distinction circuit determines whether a misfire occurs in a cylinder of an internal combustion engine.
摘要翻译： 在用于内燃机的失火检测器装置中，断电器电路断开致动流过点火线圈的初级电路的初级电流以引起火花塞电压。 在点火线圈的次级电路中提供检查二极管，以防止电流回流到点火线圈。 火花塞具有中心电极，其前端从绝缘体突出，并且突出的前端的外表面区域为25mm 2以上。 火花塞电压检测器电路检测在火花塞的火花动作结束之后发生的预定时间段之后呈现的火花塞电压波形的衰减时间长度。 基于衰减时间长度，区分电路确定在内燃机的气缸中是否发生失火。
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公开(公告)号：US5793151A
公开(公告)日：1998-08-11
申请号：US717454
申请日：1996-09-20
申请人： Junichi Kagawa , Kozo Amano , Yoshihiro Matsubara
发明人： Junichi Kagawa , Kozo Amano , Yoshihiro Matsubara
CPC分类号： H01T13/52 , F02B2075/027
摘要： A spark plug in use for an internal combustion engine, includes an insulator placed in a metal shell in a manner to extend its front end beyond the metal shell, a center electrode is placed within an axial bore provided by the insulator, an outer electrode which is welded to a front end of the metal shell is so bent that a firing end of the outer electrode faces a front end of the insulator with a space therebetween to cause surface-spark discharges along a front end surface of the insulator and to cause a semi-surface spark discharge between the center electrode and the outer electrode, the front end of the center electrode is protroacted from a front end of the insulator by at most than 0.5 mm or retracted from the front end of the insulator by at most than 1.0 mm, and the firing end of the outer electrode is in line with the front end surface of the insulator, thereby optimizing a carbon-deposit cleaning performance of the spark plug with the semi-surface spark discharge, according to the invention. In addition, a firing end portion of the center electrode has a slender noble metal tip in a preferred embodiment of the spark plugs of the invention.
摘要翻译： 用于内燃机的火花塞包括以将其前端延伸超过金属壳的方式设置在金属壳体中的绝缘体，将中心电极放置在由绝缘体提供的轴向孔内，外电极 被焊接到金属外壳的前端如此弯曲，使得外电极的点火端面与绝缘体的前端之间具有间隔，从而沿着绝缘体的前端表面引起表面火花放电，并引起 在中心电极和外部电极之间的半表面火花放电，中心电极的前端从绝缘体的前端突出多达0.5mm或从绝缘体的前端缩回至多1.0 mm，并且外电极的点火端与绝缘体的前端面一致，从而优化具有半表面火花放电的火花塞的碳沉积清洗性能，根据 涉及本发明。 此外，在本发明的火花塞的优选实施例中，中心电极的烧制端部具有细长的贵金属端头。
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4.发明授权Sparkplug voltage probe for use with an internal combustion engine by clamping sparkplug cables with an insulation base 失效用于内燃机的火花塞电压探头，通过夹住具有绝缘基座的火花塞电缆
公开(公告)号：US5543716A
公开(公告)日：1996-08-06
申请号：US262654
申请日：1994-06-20
CPC分类号： G01R15/16 , F02P17/12 , G01R31/007 , F02P2017/006 , F02P2017/123
摘要： In a sparkplug voltage probe device in use for an internal combustion engine, an insulator base is attached to the internal combustion engine, an upper surface of the insulator base having a plurality of grooves in which the sparkplug cables are placed. An insulator sheet is embedded in the insulator base. An electrode layer is provided on an upper surface of the insulator base along the grooves to form a static capacity between the electrode layer and the sparkplug cables when the voltage is applied across the spark plugs. On a lower surface of the insulator sheet an electrical shield layer is provided connected to the internal combustion engine by a ground wire. A lead wire electrically connects the electrode plate to a microcomputer so as to analyze the engine burning condition based on the static capacity between the electrode plate and the sparkplug cables.
摘要翻译： 在用于内燃机的火花塞电压探针装置中，绝缘体基座安装在内燃机上，绝缘体基座的上表面具有放置火花塞电缆的多个凹槽。 绝缘体片嵌入绝缘体基座中。 当绝缘体基底的上表面沿沟槽设置时，当跨越火花塞施加电压时，在电极层和火花塞电缆之间形成静电容。 在绝缘片的下表面上，通过接地线连接到内燃机的电屏蔽层。 引线将电极板电连接到微计算机，以基于电极板和火花塞电缆之间的静态容量分析发动机燃烧状况。
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5.发明授权Snap-in type sparkplug voltage probe device for use in internal combustion engine 失效用于内燃机的卡入式火花塞电压探头装置
公开(公告)号：US5453694A
公开(公告)日：1995-09-26
申请号：US262655
申请日：1994-06-20
CPC分类号： G01R15/16 , F02P17/12 , G01R31/007 , F02P2017/006 , F02P2017/123
摘要： In a snap-in type spark plug voltage probe device, the insulator base has an upper half and a lower half, both ends of which are integrally connected by means of a flexible portion. The upper half and the lower half have a plurality of grooves in which spark plug cables are placed. The upper half and the lower half are joined together by the flexible portion when in a closed position. The upper half has an opening to receive a protrusion provided on the lower half of the insulator base to maintain the upper half of the insulator base along the grooves, providing static capacity between the electrode layer and the spark plug cables when voltage is applied across the spark plugs. A lead wire electrically connects the electrode layer to a microcomputer so as to analyze the burning condition based on the static capacity between the electrode layer and the spark plug cables. An electrical shield layer is embedded in the insulator base in the proximity of the electrode layer and connected to the internal combustion engine by way of a ground wire located at a side of the electrode layer remote from the grooves so as to electrically shield the electrical layer. An insulator sheet is embedded in the insulator base and located between the electrode layer and the electrical shield layer.
摘要翻译： 在卡扣式火花塞电压探针装置中，绝缘体基座具有上半部和下半部，其两端通过柔性部分一体连接。 上半部和下半部具有放置火花塞电缆的多个槽。 当处于关闭位置时，上半部和下半部通过柔性部分连接在一起。 上半部具有开口以接收设置在绝缘体基座的下半部上的突出部，以沿着凹槽保持绝缘体基座的上半部分，当电压施加在电极层上时，在电极层和火花塞电缆之间提供静态电容 火花塞。 引线将电极层电连接到微型计算机，以基于电极层和火花塞电缆之间的静态容量来分析燃烧状况。 电绝缘层嵌入电极层附近的绝缘体基底中，并通过远离槽的位于电极层一侧的接地线与内燃机连接，以电屏蔽电层 。 绝缘片被嵌入绝缘体基底中，位于电极层和电屏蔽层之间。
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公开(公告)号：US5365910A
公开(公告)日：1994-11-22
申请号：US865910
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： F02P11/06 , F02P17/12 , F02P2017/006 , F02P2017/123 , F02P2017/125
摘要： A misfire detector for use in an internal combustion engine has an ignition coil including a primary coil and a secondary coil. An interrupter circuit is provided for on-off actuation of primary current flowing through a primary circuit of the ignition coil. A distributor has a series gap provided in a secondary circuit of the ignition coil, and a spark plug is adapted to be energized from the ignition coil through the series gap of the distributor. A voltage charging circuit works to electrically charge a stray capacity inherent in the spark plug immediately after an end of a spark action of the spark plug. A spark plug voltage detector circuit distinguishes the voltage waveform of more than a predetermined reference voltage level so as to deform the voltage waveform into output signals. On the basis of the width of the output signals, a distinction circuit determines whether or not the spark action ignites an air-fuel mixture in a cylinder of the internal combustion engine.
摘要翻译： 用于内燃机的失火检测器具有包括初级线圈和次级线圈的点火线圈。 提供了一个断续电路，用于对流过点火线圈的初级电路的初级电流进行开 - 关动作。 分配器具有设置在点火线圈的二次回路中的串联间隙，并且火花塞适于从点火线圈通过分配器的串联间隙通电。 电压充电电路用于在火花塞的火花作用结束之后立即对火花塞固有的杂散电容进行充电。 火花塞电压检测器电路将电压波形区分大于预定的参考电压电平，以将电压波形变形为输出信号。 基于输出信号的宽度，区分电路确定火花动作是否引燃内燃机的气缸中的空气 - 燃料混合物。
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7.发明授权Device for detecting misfire of an internal combustion engine by comparing voltage waveforms associated with ignition system 失效通过比较与点火系统相关的电压波形来检测内燃机失火的装置
公开(公告)号：US5294888A
公开(公告)日：1994-03-15
申请号：US865909
申请日：1992-04-09
CPC分类号： F02P17/12 , F02P2017/006 , F02P2017/123 , F02P2017/125
摘要： In equipment for recognizing misfire in an internal combustion engine, a first voltage waveform is obtained at an intermediate point (A) between a high impedance element (41) and a low impedance element (42). The first voltage waveform has a capacitive discharge component and an inductive discharge component during the spark and a voltage component after completion of the spark. The first voltage waveform is inversely amplified by a comparator (51) and divided by a shunt circuit (52) to obtain a second voltage waveform. In an integration circuit (53), a condenser (C1) is electrically charged by an output voltage from the comparator (51) to obtain a third voltage waveform. The second voltage waveform and the third voltage are compared by a comparator (54) to generate an output pulse. On the basis of the behavior of relatively short and relatively wide output pulse (d2, D2) and additional short output pulses (d3, d4) from the comparator (54), it is determined whether or not a misfire has occurred in the internal combustion engine.
摘要翻译： 在用于识别内燃机失火的设备中，在高阻抗元件（41）和低阻抗元件（42）之间的中间点（A）获得第一电压波形。 第一电压波形在火花期间具有电容放电分量和感应放电分量，并且在火花完成之后具有电压分量。 第一电压波形由比较器51反相放大，并由分流电路（52）分压以获得第二电压波形。 在积分电路（53）中，通过来自比较器（51）的输出电压对电容器（C1）进行充电，得到第三电压波形。 通过比较器（54）比较第二电压波形和第三电压以产生输出脉冲。 基于来自比较器（54）的相对短且相对宽的输出脉冲（d2，D2）和附加短输出脉冲（d3，d4）的行为，确定在内燃中是否发生失火 发动机。
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8.发明授权Spark plug voltage probe device for detecting a burning condition and reducing noise level in an internal combustion engine 失效用于检测燃烧状态并降低内燃机噪声水平的火花塞电压探头装置
公开(公告)号：US5426370A
公开(公告)日：1995-06-20
申请号：US982822
申请日：1992-11-30
CPC分类号： G01R15/16 , F02P17/12 , G01R31/007 , F02P2017/006 , F02P2017/123
摘要： In a spark plug voltage probe device, an electrically shield casing (301) is provided in which electrical circuit boards (302) are accommodated, the shield casing (301) having an electrically conductive wall (313) connected to the ground. An insulator base (303) is securely attached to an outer bottom of the electrical shield casing (301) and has an electrode plate (332) embedded in the insulator base to be connected to the electrical circuit boards (302). A rubber plate (342) is securely attached to a lower surface of the insulator base (303). A plurality of grooves (333, 341) are provided between the insulator base (303) and the rubber plate (342) to locate the corresponding cables (305) in the grooves (333,341) so as to form a static capacity (C1) between the electrode plate (332) and the cables (305). This makes it possible to reduce a noise level by the ratio of the static capacity (C1) to a static capacity (C2) between the electrically conductive wall (313) and the electrode plate (332). An electrical shield sheet (343) is fixedly attached to the lower surface of the rubber plate (342).
摘要翻译： 在火花塞电压探针装置中，设置有电屏蔽壳体（301），其中容纳电路板（302），所述屏蔽壳体（301）具有连接到地面的导电壁（313）。 绝缘体基座（303）牢固地附接到电气屏蔽壳体（301）的外部底部，并且具有嵌入到绝缘体基座中以连接到电路板（302）的电极板（332）。 橡胶板（342）牢固地附接到绝缘体基座（303）的下表面。 多个凹槽（333,341）设置在绝缘体基座（303）和橡胶板（342）之间，以将相应的电缆（305）定位在凹槽（333,341）中，以便形成静电容量（C1） 电极板（332）和电缆（305）。 这使得可以通过静电容量（C1）与导电壁（313）和电极板（332）之间的静态容量（C2）的比来降低噪声水平。 电屏蔽片（343）固定在橡胶板（342）的下表面上。
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9.发明授权
公开(公告)号：US5253627A
公开(公告)日：1993-10-19
申请号：US988842
申请日：1992-12-10
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 , F02D35/021 , F02P2017/006 , F02P2017/123 , F02P2017/125
摘要： In a burning condition detecting device in an internal combustion engine in which a high voltage is applied to a spark plug by way of a diode and a series gap of a distributor. A voltage charger circuit is provided to on-off actuates the primary coil to induce a charging voltage in the secondary circuit either during establishing the spark discharge or during a predetermined period of time immediately after an end of the spark discharge. The charging voltage is applied to the spark plug to electrically charge a stray capacity inherent in the spark plug so as to form a sparkplug voltage. A voltage divider circuit is provided to divide the sparkplug voltage in accordance with a high impedance element and a low impedance element. A voltage level detecting circuit is provided to detect a sparkplug voltage waveform divided by the voltage divider circuit. A distinction circuit detects a degree of variation of an attenuation time period of the spark plug voltage waveform so as to determine a variation of an air-fuel ratio of an air-fuel mixture gas injected into a cylinder of the internal combustion engine by a fuel injector.
摘要翻译： 在内燃机中的燃烧条件检测装置中，其中通过二极管将高电压施加到火花塞和分配器的串联间隙。 提供一个电压充电器电路来启动初级线圈，以在建立火花放电期间或在火花放电结束之后的预定时间段期间引起次级电路中的充电电压。 将充电电压施加到火花塞以对火花塞固有的杂散电容进行充电，以形成火花塞电压。 提供分压器电路以根据高阻抗元件和低阻抗元件来划分火花塞电压。 提供电压电平检测电路以检测由分压电路划分的火花塞电压波形。 区别电路检测火花塞电压波形的衰减时间周期的变化程度，以便确定通过燃料喷射到内燃机的汽缸内的空气燃料混合气体的空燃比的变化 注射器。
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公开(公告)号：US5554930A
公开(公告)日：1996-09-10
申请号：US234421
申请日：1994-04-28
IPC分类号： F02P11/06 , F02P17/00 , F02P17/12 , G01R1/06 , G01R19/165
CPC分类号： F02P17/12 , F02P11/06 , F02P2017/003 , F02P2017/006 , F02P2017/123 , F02P2017/125
摘要： In a spark plug voltage probe device which detects a voltage applied to a spark plug installed in an internal combustion engine so as to analyze a burning condition in the internal combustion engine on the basis of the voltage applied to the spark plug, a rubber clamper (9) is secured to the internal combustion engine, and having a groove (92) in which a spark cable (60) is located so as to form a static capacity between the rubber clamper (9) and the spark plug cable (60). An electrical conductor (93) is embedded in the rubber clamper (9) along the groove (92) while the electrical conductor (93) is connected to a microcomputer by way of an output cable (64) so as to analyze a spark plug voltage waveform. A condenser (42) is connected to a common point (A) between the electrical conductor (93) and the microcomputer so as to reduce the spark plug voltage according to a capacity of the condenser (42).
摘要翻译： 在火花塞电压探针装置中，检测施加到内燃机中安装的火花塞的电压，以便根据施加到火花塞的电压来分析内燃机的燃烧状态，橡胶夹持器 9）被固定到内燃机上，并且具有其中放置有火花塞电缆（60）的凹槽（92），以在橡胶夹持器（9）和火花塞电缆（60）之间形成静电容量。 电导体（93）沿着凹槽（92）嵌入橡胶夹持器（9）中，而电导体（93）通过输出电缆（64）连接到微型计算机，以便分析火花塞电压 波形 冷凝器（42）连接到电导体（93）和微型计算机之间的公共点（A），以便根据冷凝器（42）的容量降低火花塞电压。
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