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公开(公告)号：US20170237236A1
公开(公告)日：2017-08-17
申请号：US15501575
申请日：2015-07-28
Applicant: DENSO CORPORATION
Inventor： Kanechiyo TERADA
IPC: H01T13/32
Abstract: A spark plug 1 includes a tubular housing 2, a tubular insulator 3 held inside the housing 2, a center electrode 4 held inside the insulator 3 such that a distal end portion 41 protrudes, a ground electrode 5 that forms a spark discharge gap G between it and the center electrode 4, and a standing member 6 that stands distalward from a distal end portion 21 of the housing 2. In at least one of a pair of side surfaces 61 of the standing member 6 which face in a plug circumferential direction, there is formed a guide step portion 62 for guiding the flow of an air-fuel mixture in a combustion chamber of an internal combustion engine to the spark discharge gap G.
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22.发明申请SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING SPARK PLUG 有权用于内燃机的火花塞和制造火花塞的方法公开(公告)号：US20160064903A1
公开(公告)日：2016-03-03
申请号：US14842073
申请日：2015-09-01
Applicant: DENSO CORPORATION
Inventor： Masataka DEGUCHI , Hironori OSAMURA , Kanechiyo TERADA , Junichi WADA , Masamichi SHIBATA , Yuuki TSUKAMOTO
CPC classification number: H01T13/32 , H01T13/34 , H01T13/467 , H01T21/02
Abstract: A spark plug includes a tubular housing, a tubular insulator retained in the housing, a center electrode secured in the insulator with a distal end portion of the center electrode protruding outside the insulator, and an annular ground electrode fixed to a distal end of the housing. The housing has, at the distal end thereof, a small-inner diameter portion that has a smaller inner diameter than other portions of the housing. The annular ground electrode is arranged on a distal end surface of the small-inner diameter portion of the housing so that an inner circumferential surface of the ground electrode faces an outer circumferential surface of the distal end portion of the center electrode through a spark gap formed therebetween. The outer diameter of the ground electrode is less than the outer diameter of the distal end surface of the small-inner diameter portion of the housing.
Abstract translation: 火花塞包括管状壳体，保持在壳体中的管状绝缘体，固定在绝缘体中的中心电极，其中心电极的远端部突出于绝缘体外部，以及环形接地电极，固定到壳体的远端 。 壳体在其远端处具有比壳体的其它部分更小的内径的小内径部分。 环形接地电极设置在壳体的小内径部分的远端表面上，使得接地电极的内周面通过形成的火花间隙面对中心电极的远端部分的外圆周表面 之间。 接地电极的外径小于壳体的小内径部分的远端表面的外径。
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公开(公告)号：US20160047352A1
公开(公告)日：2016-02-18
申请号：US14783898
申请日：2014-04-11
Applicant: DENSO CORPORATION
Inventor： Satoru NAKAYAMA , Makoto TORIYAMA , Akimitsu SUGIURA , Masahiro ISHITANI , Yuuki KONDOU , Kanechiyo TERADA
CPC classification number: F02P9/002 , F02P3/005 , F02P3/0407 , F02P3/0453 , F02P3/05 , F02P3/0876 , F02P3/09 , F02P5/1502 , F02P15/10 , Y02T10/46
Abstract: It is possible to adjust electromagnetic energy introduced from a low-voltage side of a primary winding 20 of an ignition coil 2 after start discharging to a spark plug 1 from the ignition coil 2 in the correct proportion by threshold-determining either one or both of a primary voltage V1 applied to a primary side of the ignition coil 2 and a secondary current I2 flowing in a secondary side of the ignition coil 2, and by opening and closing a discharging switch 32 disposed between an auxiliary power supply 3 including an energy storage coil 330 and a low-voltage side terminal 201 of the ignition coil 2.
Abstract translation: 可以通过阈值确定任一个或两个来调节从点火线圈2开始放电到火花塞1之后从点火线圈2的初级绕组20的低压侧引入的电磁能量 施加到点火线圈2的初级侧的初级电压V1和在点火线圈2的二次侧流动的次级电流I2，并且通过打开和关闭设置在包括能量存储器的辅助电源3之间的放电开关32 线圈330和点火线圈2的低压侧端子201。
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公开(公告)号：US20150303843A1
公开(公告)日：2015-10-22
申请号：US14646941
申请日：2013-11-19
Applicant: DENSO CORPORATION , DENSOTRIM CO., LTD.
Inventor： Yasuhiro FUWA , Kanechiyo TERADA , Osamu NAITOU , Kouichi NAGATA , Masaaki OHNO
IPC: H02P6/14
Abstract: An alternating current generation system is provided. In the system, in a rotor, a plurality of detection subject portions are arrayed along a circumferential direction in correspondence to reversal states of the magnetic poles in a plurality of magnetized portions. A detecting unit is disposed opposing the rotor so as to generate an output signal corresponding to passage state of the detection subject portions. A phase control unit outputs, to a power converter, a control signal to perform phase control of switching elements depending on the rotation phase of the rotor, based on the output signal from the detecting unit.
Abstract translation: 提供交流发电系统。 在该系统中，在转子中，对应于多个磁化部中的磁极的反转状态，沿周向排列多个检测对象部。 检测单元与转子相对设置，以产生与检测对象部分的通过状态对应的输出信号。 相位控制单元根据来自检测单元的输出信号向功率转换器输出控制信号，以根据转子的旋转相位进行开关元件的相位控制。
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公开(公告)号：US20220277894A1
公开(公告)日：2022-09-01
申请号：US17747024
申请日：2022-05-18
Applicant: DENSO CORPORATION
Inventor： Norihiro ADACHI , Kanechiyo TERADA , Tetsuya MIWA
Abstract: An ignition coil for an internal combustion engine includes a primary bobbin including a winding cylinder part and a connection part between the winding cylinder part and a connector part, a primary coil including a primary main coil and a primary sub coil, and a secondary coil. When one of the primary main coil and the primary sub coil that includes an innermost coil part around the winding cylinder part is defined as a firstly-wound coil and the other is defined as a secondly-wound coil, firstly-wound ends, which are ends of the firstly-wound coil, and secondly-wound ends, which are ends of the secondly-wound coil, are attached to the connection part, and a shortest distance from a central axis of the winding cylinder part to each of the firstly-wound ends is smaller than a shortest distance from the central axis of the winding cylinder part to each of the secondly-wound ends.
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Patent Agency Ranking
公开(公告)号：US20220013283A1
公开(公告)日：2022-01-13
申请号：US17448741
申请日：2021-09-24
Applicant: DENSO CORPORATION
Inventor： Norihiro ADACHI , Kanechiyo TERADA , Tetsuya MIWA
Abstract: An ignition coil for an internal combustion engine includes a primary bobbin including a winding cylinder part and a connection part between the winding cylinder part and a connector part, a primary coil including a primary main coil and a primary sub coil, and a secondary coil. When one of the primary main coil and the primary sub coil that includes an innermost coil part around the winding cylinder part is defined as a firstly-wound coil and the other is defined as a secondly-wound coil, firstly-wound ends, which are ends of the firstly-wound coil, and secondly-wound ends, which are ends of the secondly-wound coil, are attached to the connection part, and a shortest distance from a central axis of the winding cylinder part to each of the firstly-wound ends is smaller than a shortest distance from the central axis of the winding cylinder part to each of the secondly-wound ends.
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公开(公告)号：US20210102521A1
公开(公告)日：2021-04-08
申请号：US17126668
申请日：2020-12-18
Applicant: DENSO CORPORATION
Inventor： Kanechiyo TERADA , Tetsuya MIWA
Abstract: An ignition control system for an internal combustion engine includes a controller, which includes an IGT generating section and an IGW generating section and is connected to ignition devices through an IGT signal line and an IGW signal line. The IGW signal line includes bifurcated portions, which sequentially bifurcate from a common main signal line. The bifurcated portions each correspond to one of the ignition devices and include a branched line, which is connected to an energy supply circuit inside the corresponding ignition device.
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公开(公告)号：US20210079881A1
公开(公告)日：2021-03-18
申请号：US17103088
申请日：2020-11-24
Applicant: DENSO CORPORATION
Inventor： Kanechiyo TERADA
Abstract: In an ignition control device for an internal-combustion engine, signal separation circuitry receives and separates an ignition control signal that is an integrated signal of a main ignition signal for controlling the main ignition operation, an energy input signal for controlling the energy input operation, and a target secondary current command signal. The ignition control signal is formed of a first signal and a second signal that are pulsed signals. The signal separation circuitry is configured to generate, from the ignition control signal, the main ignition signal based on rising edges of the first signal and the second signal as pulse-waveform information of the first signal and the second signal, generate the energy input signal based on a pulse width of the second signal as pulse-waveform information of the second signal, and generate the target secondary current command signal based on pulse-waveform information of the first signal.
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公开(公告)号：US20210021105A1
公开(公告)日：2021-01-21
申请号：US16931782
申请日：2020-07-17
Applicant: DENSO CORPORATION
Inventor： Yuuki KAWATA , Masamichi SHIBATA , Kanechiyo TERADA , Tetsuya MIWA
IPC: H01T13/32
Abstract: A spark plug has a housing, an insulator, a central electrode and a ground electrode. At least one projection part is formed on an outer peripheral surface of the insulator at a location facing a distal end cylindrical surface of the insulator in a radial direction of the spark plug so that at least one projection part has a minimum distance measured from a plug central axis of the spark plug, which is longer than a distance of another part of the insulator measured from the plug central axis. On a cross section of the spark plug, at least one projection part is formed on the outer peripheral surface of the insulator in a direction between at least one projection part and the plug central axis which crosses to a direction between a rod-shaped part and the plug central axis.
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公开(公告)号：US20190386467A1
公开(公告)日：2019-12-19
申请号：US16551912
申请日：2019-08-27
Applicant: DENSO CORPORATION
Inventor： Noriaki NISHIO , Masamichi SHIBATA , Kanechiyo TERADA , Ken HANASHI , Ryohei AKIYOSHI , Fumiaki AOKI
IPC: H01T13/32
Abstract: A center electrode is held in insulating glass, in which a tip end portion of the center electrode protrudes. A ground electrode has a connection part connected to a housing. The ground electrode forms a spark discharge gap between the center electrode and the ground electrode. The ground electrode has a ground base material that includes the connection part and a ground protrusion part that protrudes from the ground base material toward the center electrode and forms the spark discharge gap between the center electrode and the ground electrode. An angle between a ground discharge surface of the ground protrusion part and a side surface of the ground protrusion part is a right angle or an acute angle. At least a portion of the side surface of the ground protrusion part and at least a portion of a side surface of the ground base material are flush with each other.
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