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    Spark plug
    1.
    发明授权
    Spark plug 有权

    公开(公告)号：US09735552B2

    公开(公告)日：2017-08-15

    申请号：US14538262

    申请日：2014-11-11

    Applicant: NGK Spark Plug Co., LTD.

    Inventor： Tatsunori Yamada ,  Yusuke Fuji ,  Tomoyuki Igarashi ,  Kei Takahashi

    IPC: H01T13/32

    CPC classification number: H01T13/32

    Abstract: A spark plug includes: an insulator having an axial hole; a conductive member disposed around the insulator; a center electrode disposed inside the axial hole, having a bar shape extending in the axial direction, and located on a rear end side with respect to a front end of the conductive member; a ground electrode forming a spark gap between the ground electrode and the center electrode; and a connection part including a plurality of spokes extending in a radial direction whose inner ends are connected to the ground electrode, and connecting the conductive member to the ground electrode. The connection part includes a joint part that is jointed to an inner surface of the conductive member, and the ground electrode has at least one of a notch and a groove at a position that is different from a position connected to the spokes in a circumferential direction.

    Diaphragm suppressing pressure sensor
    3.
    发明授权
    Diaphragm suppressing pressure sensor 有权

    公开(公告)号：US10801908B2

    公开(公告)日：2020-10-13

    申请号：US16086105

    申请日：2016-12-08

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Yusuke Fuji ,  Tatsunori Yamada ,  Daiki Goto ,  Junki Iwabuchi

    IPC: G01L7/08 ,  G01L23/10 ,  G01L19/06 ,  G01L9/00 ,  G01L23/22 ,  G01L19/14

    Abstract: A pressure sensor including: a cylindrical casing extending in an axial direction; a diaphragm joined to the distal end side of the casing, extending in a direction intersecting the axis of the casing and deforming in accordance with pressure received on the distal end side; and a sensor section disposed inside the casing and outputting an electric signal corresponding to the deformation of the diaphragm. The diaphragm is provided with a plate-shaped base part and three or more protruding parts protruding from the distal end side surface of the base part toward the distal end side and set apart from each other. The relationships 0.05≤H≤2.5T and 0.05≤(S2/S1)≤0.8 are satisfied, where T (thickness), H (length), S1 (area of base distal end surface) and S2 (total area of protruding distal end surfaces) are as defined herein.

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