公开(公告)号：US5271268A

公开(公告)日：1993-12-21

申请号：US795463

申请日：1991-11-21

Applicant: Masayuki Ikeuchi ,  Shigemi Murata ,  Toshio Iwata ,  Atsushi Ueda ,  Toshio Ohsawa

Inventor： Masayuki Ikeuchi ,  Shigemi Murata ,  Toshio Iwata ,  Atsushi Ueda ,  Toshio Ohsawa

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

CPC classification number: F02P17/12 ,  G01R19/0061 ,  F02P2017/125 ,  F02P2017/128 ,  G01R31/006

Abstract: 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.

Abstract translation: 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

Applicant: Shigemi Murata ,  Masayuki Ikeuchi

Inventor： Shigemi Murata ,  Masayuki Ikeuchi

IPC: F02P7/02 ,  F02P17/12

CPC classification number: F02P17/12 ,  F02P7/021 ,  F02P2017/125

Abstract: 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.

Abstract translation: 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：US5144234A

公开(公告)日：1992-09-01

申请号：US681610

申请日：1991-04-08

Applicant: Shigemi Murata

Inventor： Shigemi Murata

IPC: C01B17/90 ,  F02P7/07 ,  G01D5/14 ,  G01P3/488 ,  H03K17/95

CPC classification number: H03K17/9505 ,  C01B17/905 ,  F02P7/07 ,  G01D5/147 ,  G01P3/488 ,  H03K17/9517 ,  A61M2205/7545

Abstract: A Hall-effect sensor, wherein a Hall element is disposed in a magnetic path being formed by a magnet and a flux guide, and the magnet, flux guide, and Hall element are integrally held with a molded frame, and the Hall element is fixed to the magnet (or flux guide) or the molded frame. This Hall-effect sensor can easily position the Hall element with higher sensitivity.

公开(公告)号：US5028868A

公开(公告)日：1991-07-02

申请号：US413648

申请日：1989-09-28

Applicant: Shigemi Murata ,  Yutaka Ohashi

Inventor： Shigemi Murata ,  Yutaka Ohashi

IPC: G01D5/14

CPC classification number: G01D5/147

Abstract: A Hall effect type sensor comprises a magnet and a magnetic flux guide which cooperate to form a magnetic circuit and a Hall IC disposed in the magnetic circuit wherein these elements are fixed to a frame through holding members so that the magnetic flux guide and the Hall IC are placed at correct positions on the frame.

公开(公告)号：US4932388A

公开(公告)日：1990-06-12

申请号：US261856

申请日：1988-10-25

Applicant: Masaaki Chiba ,  Shigemi Murata

Inventor： Masaaki Chiba ,  Shigemi Murata

IPC: G01D5/36 ,  F02B77/08 ,  F02D35/00

CPC classification number: F02B77/087

Abstract: A rotary position detector for an internal combustion engine with a cam shaft, which includes a sleeve to be mounted on the cam shaft for rotation along with the cam shaft; a hermetic housing to be secured to the engine such that the sleeve rotates within the housing; an optical sensor mounted on an inside of the housing; and a perforated shutter disk secured to the sleeve so as to rotate together with the sleeve with respect to the stationary optical sensor to provide a signal corresponding to a rotary position of the engine.

Abstract translation: 一种用于具有凸轮轴的内燃机的旋转位置检测器，其包括安装在凸轮轴上以与凸轮轴一起旋转的套筒; 密封壳体，其被固定到发动机，使得套筒在壳体内旋转; 安装在壳体内部的光学传感器; 以及固定到套筒上以与套筒相对于固定光学传感器一起旋转的穿孔快门盘，以提供对应于发动机的旋转位置的信号。