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5 条记录 (耗时 0.016 秒)

    IGNITION COIL
    2.
    发明申请
    IGNITION COIL 有权

    公开(公告)号：US20210249187A1

    公开(公告)日：2021-08-12

    申请号：US17171345

    申请日：2021-02-09

    申请人： DENSO CORPORATION

    发明人： Norihiro ADACHI ,  Junichi WADA

    IPC分类号： H01F38/12 ,  H01F27/26

    摘要： An ignition coil includes a center core, a first core member, and a second core member. The first core member includes a first core-facing portion facing a front core surface of the center core and a first core side portion extending rearward from the first core-facing portion. The second core member includes a second core-facing portion facing a rear core surface of the center core and a second core side portion extending frontward from the second core-facing portion. The first core-facing portion has an end surface contacting a portion of the second core side portion to create a first contact region. Similarly, the second core-facing portion has an end surface contacting a portion of the first core side portion to create a second contact region. The first and second contact regions are shaped to approach frontward close to the first core side portion. This structure enhances productivity of the ignition coil.

    IGNITION COIL
    3.
    发明申请
    IGNITION COIL 有权

    公开(公告)号：US20210233704A1

    公开(公告)日：2021-07-29

    申请号：US17158333

    申请日：2021-01-26

    申请人： DENSO CORPORATION

    发明人： Takehiro TORII ,  Junichi WADA

    IPC分类号： H01F38/12 ,  H01F27/28 ,  H01F27/26

    摘要： An ignition coil has primary and secondary coils, a central core and a pair of split cores. One of the split cores has a first opposing face orthogonal to a coil axial direction X facing a core front end face of the central core in the coil axial direction X. The respective split cores have second opposing surfaces mutually facing each other in a lateral direction Y at a rear end of the central core. At least one of the second opposing surfaces and one of rear end surfaces of the central core contacting the least one of the second opposing surfaces collectively constitute a pair of oblique surfaces and come to close to the other one of the second opposing surfaces in the lateral direction Y as a portion of each of the oblique surfaces recedes further from the first opposing face in the coil axial direction X.

    SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING SPARK PLUG
    4.
    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

    申请人： DENSO CORPORATION

    发明人： Masataka DEGUCHI ,  Hironori OSAMURA ,  Kanechiyo TERADA ,  Junichi WADA ,  Masamichi SHIBATA ,  Yuuki TSUKAMOTO

    IPC分类号： H01T13/32 ,  H01T13/34 ,  H01T21/02

    CPC分类号： H01T13/32 ,  H01T13/34 ,  H01T13/467 ,  H01T21/02

    摘要： 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.

    摘要翻译： 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。

    IGNITION COIL FOR INTERNAL COMBUSTION ENGINE
    5.
    发明申请
    IGNITION COIL FOR INTERNAL COMBUSTION ENGINE 有权

    公开(公告)号：US20170321648A1

    公开(公告)日：2017-11-09

    申请号：US15525641

    申请日：2015-11-06

    申请人： DENSO CORPORATION

    发明人： Masafuyu SANO ,  Junichi WADA

    IPC分类号： F02P3/055 ,  F02P15/12 ,  F02P13/00 ,  H01F27/42 ,  H01F27/30 ,  F02P9/00 ,  H01F38/12

    CPC分类号： F02P3/0556 ,  F02P3/02 ,  F02P9/007 ,  F02P13/00 ,  F02P15/12 ,  H01F27/306 ,  H01F27/425 ,  H01F38/12

    摘要： In an ignition coil for an internal combustion engine, a resistor is disposed in a tower insertion hole of a high-voltage tower section. A coil spring is inserted in the tower insertion hole. An inner diameter of a proximal end side portion of the tower insertion hole is larger than an outer diameter of a maximum outer diameter portion of the resistor. An inner diameter of the distal end side portion of the tower insertion hole is larger than an outer diameter of a proximal end side portion of the coil spring, and is smaller than the outer diameter of the maximum outer diameter portion. In a state where the coil spring is pulled out from the tower insertion hole, the maximum outer diameter portion is restrained by the distal end side portion of the tower insertion hole, and a gap is formed between the resistor and a high-voltage cap.