公开(公告)号：US5307786A

公开(公告)日：1994-05-03

申请号：US21588

申请日：1993-02-24

申请人： Shigemi Murata ,  Masayuki Ikeuchi

发明人： Shigemi Murata ,  Masayuki Ikeuchi

IPC分类号： F02P3/04 ,  F02P7/03 ,  F02P17/12 ,  F02P3/02

CPC分类号： F02P7/035 ,  F02P17/12 ,  F02P3/04 ,  F02P2017/125

摘要： An ignition apparatus for an internal combustion engine includes a reduced number of component parts which can be arranged or laid out without difficulty within a limited space such as a vehicle engine room. The apparatus can be manufactured at low costs and it is also highly resistant to electrical noise from adjacent electrical and electronic elements and hence has improved reliability in operation. The apparatus includes an ignition coil connected to a spark plug which has electrodes present in a combustion chamber of a cylinder, a switch unit for controlling power supply to the ignition coil, and an ion current sensing unit connected to the spark plug for sensing an ion current generated between the electrodes of the spark plug during combustion of a mixture in the combustion chamber. The ignition coil and the switch unit, or the ion current sensing unit and the switch unit, or all of these elements, are integrally formed with each other to provide an integral assembly. In a preferred form, the switch unit and the ion current sensing unit comprise a hybrid integral circuit. The switch unit includes a switch in the form of a power transistor connected to the ignition coil, and a switch driver for driving the switch. The power transistor can be formed separately from the ion current sensing unit whereas the switch driver can be integrally formed with the ion current sensing unit.

摘要翻译： 一种用于内燃机的点火装置，包括在诸如车辆发动机室的有限空间内可以毫无困难地布置或布置的部件数量减少。 该设备可以以低成本制造，并且还高度抵抗来自相邻电气和电子元件的电噪声，因此具有改进的操作可靠性。 该装置包括点火线圈，其连接到具有存在于气缸的燃烧室中的电极的火花塞，用于控制对点火线圈的供电的开关单元和连接到用于感测离子的火花塞的离子电流感测单元 在燃烧室内的混合物燃烧期间，在火花塞的电极之间产生的电流。 点火线圈和开关单元，或离子电流感测单元和开关单元，或所有这些元件彼此一体地形成以提供整体组件。 在优选形式中，开关单元和离子电流感测单元包括混合积分电路。 开关单元包括连接到点火线圈的功率晶体管形式的开关和用于驱动开关的开关驱动器。 功率晶体管可以与离子电流感测单元分开形成，而开关驱动器可以与离子电流感测单元整体形成。

公开(公告)号：US5180983A

公开(公告)日：1993-01-19

申请号：US764744

申请日：1991-09-24

申请人： Shigemi Murata ,  Masayuki Ikeuchi

发明人： Shigemi Murata ,  Masayuki Ikeuchi

IPC分类号： F02P13/00 ,  F02P17/12 ,  G01L23/22 ,  G01R19/00 ,  G01R31/00 ,  H01T13/40

CPC分类号： H01T13/40 ,  F02P13/00 ,  F02P17/12 ,  G01L23/22 ,  G01L23/221 ,  F02P2017/125 ,  F02P2017/128 ,  G01R19/0061 ,  G01R31/006

摘要： An ignition plug for an internal combustion engine includes an ionization current detector electrode 20 adapted to be coupled to an external ionization detector circuit. Preferably, the ionization current detector electrode extends through a lateral through-hole formed vertically through an expanded portion of the electrical insulator 3. The lower end of the ionization current detector electrode may extend into the combustion chamber by a predetermined length. Further, the lower end of the ionization current detector electrode exposed to the fuel/air mixture within the combustion chamber may form a cylindrical grid to increase the contact area with the combustion gas.

摘要翻译： 用于内燃机的火花塞包括适于与外部电离检测器电路耦合的电离电流检测器电极20。 优选地，电离电流检测器电极通过垂直形成的横向通孔延伸穿过电绝缘体3的扩展部分。电离电流检测器电极的下端可以延伸到燃烧室预定的长度。 此外，暴露于燃烧室内的燃料/空气混合物的电离电流检测器电极的下端可以形成圆柱形栅格以增加与燃烧气体的接触面积。

公开(公告)号：US5233295A

公开(公告)日：1993-08-03

申请号：US737549

申请日：1991-07-30

申请人： Shigemi Murata ,  Masayuki Ikeuchi

发明人： Shigemi Murata ,  Masayuki Ikeuchi

IPC分类号： G01B7/30 ,  F02D35/00 ,  G01B7/00 ,  G01B7/06

CPC分类号： G01B7/06

摘要： An angle detecting device including a magnetism gap where a magnetic-flux shutter rotates synchronously with a detection subject, a magnetic flux generator provided at one side of the gap, a magnetic-flux detector provided at the other side of the gap, an outlet of the signals from the detector, a frame integrally including the above-described generator, detector and outlet, and anchoring portions mechanically fixing the detector in a housing portion of the frame. In one embodiment, the anchoring portions are a pair of saw-toothed tabs formed by cutting and bending out a section of the plate. The saw-toothed tabs cut into the inner wall of the housing when the detector is inserted. In another embodiment, the anchoring portions are a pair of supporting tabs formed by bending extensions of the plate. The supporting tabs are clamped between a lower surface of the housing and a cover. In still another embodiment, a pair of coupling tabs provided with holes are formed integrally on the plate, and a pair of projections are integrally resin-molded in the housing portion of the frame. The projections passed through the holes are caulked when the detector is inserted.

摘要翻译： 一种角度检测装置，其特征在于，包括：磁通快门与检测体同步旋转的磁隙，设置在所述间隙的一侧的磁通发生器，设置在所述间隙的另一侧的磁通检测器， 来自检测器的信号，一体地包括上述发生器，检测器和出口的框架以及将检测器机械地固定在框架的壳体部分中的固定部分。 在一个实施例中，锚定部分是通过切割和弯曲板的一部分而形成的一对锯齿状突片。 当检测器插入时，锯齿形突片切入外壳的内壁。 在另一个实施例中，锚定部分是通过弯曲板的延伸部而形成的一对支撑突出部。 支撑片夹在壳体的下表面和盖之间。 在另一个实施例中，一对设置有孔的联接突片一体地形成在板上，一对突起被一体地树脂模制在框架的壳体部分中。 当检测器插入时，穿过孔的突起被铆接。

公开(公告)号：US5178001A

公开(公告)日：1993-01-12

申请号：US765298

申请日：1991-09-25

申请人： Masayuki Ikeuchi ,  Shigemi Murata

发明人： Masayuki Ikeuchi ,  Shigemi Murata

IPC分类号： F02P17/12

CPC分类号： F02P17/12 ,  F02P2017/125 ,  F02P2017/128

摘要： An ignition apparatus for an internal combustion engine can prevent malfunctions due to noise induced by a high ignition voltage which is developed by an ignition coil upon ignition. Generation of a misfiring detection signal can also be prevented during fuel supply cut-off operations. To these ends, in one aspect, and ignition apparatus includes: a controller for controlling the ignition of a cylinder of the engine in synchronism with the rotation thereof; a detector connected to a spark plug and an ignition coil for detecting an ion current which is generated between the electrodes of the spark plug upon combustion of an air/fuel mixture in the cylinder; and mask a for masking the output signal of the detector in response to discharge of the spark plug. In another aspect, an ignition apparatus includes: a controller for controlling the ignition of and the fuel supply to a cylinder of the engine in synchronism with the rotation thereof; a detector for detecting misfiring in the cylinder; and mask a for masking the output signal of the detector when the fuel supply to the cylinder is cut off.

摘要翻译： 用于内燃机的点火装置可以防止由点火线圈在点火时产生的高点火电压引起的噪声引起的故障。 在燃料供给截止操作期间，也可以防止产生失火检测信号。 为此，在一个方面，点火装置包括：控制器，用于与发动机的旋转同步地控制发动机气缸的点火; 连接到火花塞的检测器和用于检测在气缸中的空气/燃料混合物燃烧时在火花塞的电极之间产生的离子电流的点火线圈; 并且掩蔽a以响应于火花塞的放电来掩蔽检测器的输出信号。 在另一方面，点火装置包括：控制器，用于与其旋转同步地控制发动机气缸的点火和燃料供给; 用于检测气缸中的失火的检测器; 并且当向气缸的燃料供应被切断时，掩模a用于掩蔽检测器的输出信号。

公开(公告)号：US5239973A

公开(公告)日：1993-08-31

申请号：US773450

申请日：1991-10-09

申请人： Shigemi Murata ,  Masayuki Ikeuchi

发明人： Shigemi Murata ,  Masayuki Ikeuchi

IPC分类号： F02P3/04 ,  F02P7/03 ,  F02P17/12

CPC分类号： F02P7/035 ,  F02P17/12 ,  F02P3/04 ,  F02P2017/125

摘要： An ignition apparatus for an internal combustion engine includes a reduced number of component parts which can be arranged or laid out without difficulty within a limited space such as a vehicle engine room. The apparatus can be manufactured at low costs and it is also highly resistant to electrical noise from adjacent electrical and electronic elements and hence has improved reliability in operation. The apparatus includes an ignition coil connected to a spark plug which has electrodes present in a combustion chamber of a cylinder, a switch unit for controlling power supply to the ignition coil, and an ion current sensing unit connected to the spark plug for sensing an ion current generated between the electrodes of the spark plug during combustion of a mixture in the combustion chamber. The ignition coil and the switch unit, or the ion current sensing unit and the switch unit, or all of these elements, are integrally formed with each other to provide an integral assembly. In a preferred form, the switch unit and the ion current sensing unit comprise a hybrid integral circuit. The switch unit includes a switch in the form of a power transistor connected to the ignition coil, and a switch driver for driving the switch. The power transistor can be formed separately from the ion current sensing unit whereas the switch driver can be integrally formed with the ion current sensing unit.

摘要翻译： 一种用于内燃机的点火装置，包括在诸如车辆发动机室的有限空间内可以毫无困难地布置或布置的部件数量减少。 该设备可以以低成本制造，并且还高度抵抗来自相邻电气和电子元件的电噪声，因此具有改进的操作可靠性。 该装置包括点火线圈，其连接到具有存在于气缸的燃烧室中的电极的火花塞，用于控制对点火线圈的供电的开关单元和连接到用于感测离子的火花塞的离子电流感测单元 在燃烧室内的混合物燃烧期间，在火花塞的电极之间产生的电流。 点火线圈和开关单元，或离子电流感测单元和开关单元，或所有这些元件彼此一体地形成以提供整体组件。 在优选形式中，开关单元和离子电流感测单元包括混合积分电路。 开关单元包括连接到点火线圈的功率晶体管形式的开关和用于驱动开关的开关驱动器。 功率晶体管可以与离子电流感测单元分开形成，而开关驱动器可以与离子电流感测单元整体形成。

公开(公告)号：US5272914A

公开(公告)日：1993-12-28

申请号：US770264

申请日：1991-10-03

申请人： Shigemi Murata ,  Masayuki Ikeuchi ,  Toshio Iwata ,  Toshio Ohsawa

发明人： Shigemi Murata ,  Masayuki Ikeuchi ,  Toshio Iwata ,  Toshio Ohsawa

IPC分类号： F02P17/12 ,  G01M15/00

CPC分类号： F02P17/12 ,  F02P2017/125

摘要： An ignition system for internal combustion engines has an ignition coil having a primary winding and a secondary winding. The secondary winding supplies a high voltage for ignition to an ignition plug when the ignition coil is energized at the primary winding at a predetermined period. A voltage producing circuit produces a voltage on the basis of a signal developed across the primary winding when the primary winding is energized at a predetermined period. The voltage causes discharge across the electrodes of the ignition plug to form a path for an ion current developed in the cylinder. A comparator or detector detects the ion current to determine the combustion in a cylinder.

摘要翻译： 用于内燃机的点火系统具有具有初级绕组和次级绕组的点火线圈。 当点火线圈在初级绕组上以预定的时间段通电时，次级绕组向火花塞提供高电压点火。 当初级绕组在预定周期被通电时，电压产生电路基于在初级绕组上产生的信号产生电压。 电压引起火花塞电极上的放电，形成在气缸中产生的离子电流的路径。 比较器或检测器检测离子电流以确定气缸中的燃烧。

公开(公告)号：US5271268A

公开(公告)日：1993-12-21

申请号：US795463

申请日：1991-11-21

申请人： Masayuki Ikeuchi ,  Shigemi Murata ,  Toshio Iwata ,  Atsushi Ueda ,  Toshio Ohsawa

发明人： Masayuki Ikeuchi ,  Shigemi Murata ,  Toshio Iwata ,  Atsushi Ueda ,  Toshio Ohsawa

IPC分类号： F02P17/12 ,  G01R19/00 ,  G01R31/00 ,  F02D1/00 ,  F02P9/00

CPC分类号： F02P17/12 ,  G01R19/0061 ,  F02P2017/125 ,  F02P2017/128 ,  G01R31/006

摘要： A capacitor is connected to an ignition coil for an internal combustion engine so as to be charged by ignition current generated by the ignition coil. After firing of a spark plug in a cylinder by the ignition current, the voltage across the capacitor is applied between the center electrode and the ground electrode of the spark plug to induce an ionic current between the electrodes. The resulting ionic current is measured by a current sensor connected to the capacitor.

摘要翻译： 电容器与用于内燃机的点火线圈连接，由点火线圈产生的点火电流进行充电。 通过点火电流在气缸内点火火花塞之后，电容器两端的电压施加在火花塞的中心电极和接地电极之间，以引起电极间的离子电流。 所得到的离子电流通过连接到电容器的电流传感器来测量。

公开(公告)号：US5144936A

公开(公告)日：1992-09-08

申请号：US764594

申请日：1991-09-24

申请人： Shigemi Murata ,  Masayuki Ikeuchi

发明人： Shigemi Murata ,  Masayuki Ikeuchi

IPC分类号： F02P7/02 ,  F02P17/12

CPC分类号： F02P17/12 ,  F02P7/021 ,  F02P2017/125

摘要： An ignition apparatus for internal combustion engines of which configuration is simplified to reduce production cost and improve reliability of the apparatus. The present invention with the above object can be completed in three main embodiments. The ignition apparatus according to one embodiment of the present invention has a distributor cap. The distributor cap comprises an ignition coil; a central electrode connected to the ignition coil; a plurality of side electrodes each connected to an ignition plug of each cylinder of the engine and selectively connected to the central electrode; a plurality of diodes each connected to the plurality of side electrodes each; a terminal connected to the diodes for outputting ion detecting signals; and a resin portion for holding the central electrode, the plurality of side electrodes, the plurality of diodes, and the terminal. In the above embodiment, the ion current detecting diodes are built in the distributor cap to remove the diode assemblies each provided to each cylinder of the engine, resulting in the decreased number of parts for the apparatus.

摘要翻译： 一种用于内燃机的点火装置，其构造被简化以降低生产成本并提高装置的可靠性。 具有上述目的的本发明可以在三个主要实施例中完成。 根据本发明的一个实施例的点火装置具有分配器盖。 分配器盖包括点火线圈; 连接到点火线圈的中心电极; 多个侧电极，各自连接到发动机的每个气缸的火花塞，并且选择性地连接到中心电极; 多个二极管，各自连接到所述多个侧电极; 连接到二极管以输出离子检测信号的端子; 以及用于保持中心电极，多个侧电极，多个二极管和端子的树脂部分。 在上述实施例中，离子电流检测二极管内置在分配器盖中以去除每个设置在发动机的每个气缸上的二极管组件，导致装置的部件数量减少。

公开(公告)号：US5293129A

公开(公告)日：1994-03-08

申请号：US783908

申请日：1991-10-29

申请人： Masayuki Ikeuchi ,  Shigemi Murata ,  Toshio Iwata ,  Toshio Ohsawa ,  Takanobu Yonetsu

发明人： Masayuki Ikeuchi ,  Shigemi Murata ,  Toshio Iwata ,  Toshio Ohsawa ,  Takanobu Yonetsu

IPC分类号： F02P17/12 ,  F02P17/00 ,  F02P9/00

CPC分类号： F02P17/12 ,  F02P2017/125

摘要： A direct current power supply applies a positive voltage between the center electrode and the ground electrode of a spark plug in an internal combustion engine after discharge of the spark plug. Ionic current flowing between the electrodes due to the positive voltage is measured by a current sensor. The ionic current caused by the positive voltage is due to electrons, so it has a large magnitude and can be easily measured.

摘要翻译： 直流电源在火花塞放电之后，在内燃机的火花塞的中心电极和接地电极之间施加正电压。 由于正电压而在电极之间流动的离子电流由电流传感器测量。 由正电压引起的离子电流是由电子引起的，所以它具有很大的量级，可以容易地测量。

公开(公告)号：US5189373A

公开(公告)日：1993-02-23

申请号：US769313

申请日：1991-10-01

申请人： Shigemi Murata ,  Masayuki Ikeuchi

发明人： Shigemi Murata ,  Masayuki Ikeuchi

IPC分类号： F02D45/00 ,  F02P17/12

CPC分类号： F02P17/12 ,  F02P2017/125

摘要： An ignition apparatus for an internal combustion engine is provided in which malfunctions due to noise induced by a high ignition voltage can be avoided in a reliable manner. A controller controls the ignition timing of a cylinder of the engine in synchronism woth the rotation thereof. A detector 7-13 detects an ion current which is generated between the electrodes of the spark plug upon combustion of an air/fuel mixture in the cylinder. A filter 21 is connected to an input side of the detector for filtering noise contained in the ion current, the noise being induced by the ignition coil upon sparking of the spark plug. The ignition coil has a primary winding connected to the controller and a secondary winding connected to the spark plug. The filter is connected between the detector and a node P2 between the secondary winding of the ignition coil and the spark plug.

摘要翻译： 提供一种用于内燃机的点火装置，其中可以以可靠的方式避免由于高点火电压引起的噪声而导致的故障。 控制器以其旋转同步地控制发动机气缸的点火正时。 检测器7-13检测在气缸中的空气/燃料混合物燃烧时在火花塞的电极之间产生的离子电流。 过滤器21连接到检测器的输入侧，用于对包含在离子电流中的噪声进行滤波，该噪声是由点火线圈在火花塞火花时引起的。 点火线圈具有连接到控制器的初级绕组和连接到火花塞的次级绕组。 滤波器连接在检测器和点火线圈的次级绕组与火花塞之间的节点P2之间。