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    Gas sensor
    1.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US09581565B2

    公开(公告)日：2017-02-28

    申请号：US14278246

    申请日：2014-05-15

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Makoto Kume ,  Nobuhiro Inoue ,  Daisuke Tahira ,  Shingo Ito ,  Yuichi Yamada

    IPC: G01N27/407 ,  G01M15/10 ,  G01N1/00

    CPC classification number: G01N27/4077 ,  G01M15/102 ,  G01N1/00 ,  G01N27/407

    Abstract: Disclosed is a gas sensor having a metal shell, a holder placed in the metal shell and a sensor element inserted through an axial insertion hole of the holder. The holder has a recessed portion recessed toward the rear from a front end face of the holder. The sensor element has, at a front end part thereof, a detection portion covered with a porous protection layer such that a rear end of the porous protection layer is situated within the recessed portion of the holder and is located at the rear side with respect to the front end face of the holder while maintaining a space between an inner circumferential surface of the recessed portion and an outer circumferential surface of the porous protection layer.

    Abstract translation: 公开了一种气体传感器，其具有金属外壳，保持器放置在金属外壳中，以及通过保持器的轴向插入孔插入的传感器元件。 保持器具有从保持器的前端面朝向后方凹陷的凹部。 传感器元件的前端部分具有覆盖有多孔保护层的检测部分，使得多孔保护层的后端位于保持器的凹部内并位于相对于 同时保持凹部的内周面与多孔保护层的外周面之间的空间。

    Gas sensor
    2.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US09541533B2

    公开(公告)日：2017-01-10

    申请号：US14168630

    申请日：2014-01-30

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Takehiro Oba ,  Shingo Ito ,  Makoto Kume ,  Daisuke Tahira

    IPC: G01N27/407 ,  G01N33/00

    CPC classification number: G01N33/0009 ,  G01N27/407

    Abstract: A gas sensor (1) has a platelike detection element (5) extending in an axial direction and a ceramic member (67) having an element insertion hole (81) into which the detection element (5) is inserted. When the ceramic member (67) is viewed from the axial direction, the element insertion hole (81) has a main insertion hole (83) having a substantially quadrate shape surrounded by four sides, and relief holes (85), (86), (87) and (88), each of which is surrounded by an outline connecting ends of two adjacent sides of the four sides of the main insertion hole (83) and located radially outward of the main insertion hole (83) so as to communicate with the main insertion hole 83.

    Abstract translation: 气体传感器（1）具有沿轴向延伸的板状检测元件（5）和具有插入检测元件（5）的元件插入孔（81）的陶瓷部件（67）。 当从轴向观察陶瓷构件67时，元件插入孔81具有由四边包围的大致四边形形状的主插入孔83，并且具有排出孔85，（86） （87）和（88），其中每个由主插入孔（83）的四个侧面的两个相邻端的端部围绕，并且位于主插入孔（83）的径向外侧，以便连通 与主插入孔83。

    Gas sensor
    4.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US09354142B2

    公开(公告)日：2016-05-31

    申请号：US14278241

    申请日：2014-05-15

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Daisuke Tahira ,  Shingo Ito ,  Keiichi Noda ,  Yuichi Yamada ,  Makoto Kume

    IPC: G01N1/00 ,  G01M15/10 ,  G01N27/407

    CPC classification number: G01N27/4077 ,  G01M15/102 ,  G01N1/00 ,  G01N27/407

    Abstract: Disclosed is a gas sensor including a metal shell, a ceramic holder placed in an axial inner hole of the metal shell and a sensor element inserted through an insertion hole of the ceramic holder. The ceramic holder has a recessed hole recessed toward the rear from a front-facing surface of the ceramic holder. The sensor element has, at a front end part thereof, a detection portion covered with a porous protection layer such that a rear end part of the protection layer is accommodated in the recessed hole with a space left therebetween. Further, the ceramic holder has a front circumferential edge defined between an inner circumferential surface of the recessed hole and the front-facing surface of the ceramic holder such that the whole of the front circumferential edge is located radially inside of a radially innermost position of the axial hole.

    Abstract translation: 公开了一种气体传感器，其包括金属壳，设置在金属壳的轴向内孔中的陶瓷保持器和通过陶瓷保持器的插入孔插入的传感器元件。 陶瓷保持器具有从陶瓷保持器的前表面向后凹入的凹入孔。 传感器元件的前端部分具有覆盖有多孔保护层的检测部分，使得保护层的后端部分容纳在凹孔中并留有空隙。 此外，陶瓷保持器具有限定在凹孔的内周面和陶瓷保持件的前表面之间的前周缘，使得前周缘的整体位于径向最内侧的位置 轴向孔。

    Gas sensor
    5.
    发明授权
    Gas sensor 有权

    公开(公告)号：US11821865B2

    公开(公告)日：2023-11-21

    申请号：US17046224

    申请日：2019-02-08

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Masana Okai ,  Takehiro Oba ,  Daisuke Tahira ,  Masashi Nomura

    IPC: G01N27/28 ,  G01N27/407 ,  G01N33/00

    CPC classification number: G01N27/283 ,  G01N27/407 ,  G01N33/0036

    Abstract: A gas sensor including: a sensor element extending in an axial direction; a metal shell surrounding and supporting the sensor element; an exterior tube that is tubular and is mounted to a rear end of the metal shell; a metal terminal including a first end connected to a lead wire and a second end electrically connected to the sensor element; a separator that is tubular and is disposed in the exterior tube and contains the metal terminal and the sensor element; and a holder being in contact with the separator in the axial direction. The holder includes ribs formed in a frontward face or a rearward face of the holder and arranged at predetermined intervals in a circumferential direction. Each of the ribs occupies a region having a length equal to or greater than a thickness of the holder, as viewed in the axial direction.

    Gas sensor
    7.
    发明授权
    Gas sensor 有权

    公开(公告)号：US10732142B2

    公开(公告)日：2020-08-04

    申请号：US15878591

    申请日：2018-01-24

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Daisuke Tahira ,  Shingo Ito

    IPC: G01N27/407 ,  G01D11/24 ,  G01N27/406 ,  G01M15/10

    Abstract: A gas sensor (100) includes a sensor element (120), a metallic shell (110), a powder filler member (133), a first ceramic holder (135) in contact with the rear end of the powder filler member and from which the sensor element protrudes, and a second ceramic holder (131) in contact with the forward end of the powder filler member and from which the sensor element protrudes. The powder filler member has a higher thermal expansion coefficient than that of the first and second ceramic holders. The first ceramic holder, powder filler member, and second ceramic holder are pressed by force application means (118). A relation 0.40

    Gas sensor
    9.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US09506899B2

    公开(公告)日：2016-11-29

    申请号：US14252073

    申请日：2014-04-14

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Makoto Kume ,  Shingo Ito ,  Daisuke Tahira ,  Takehiro Oba ,  Yuichi Yamada

    IPC: G01N33/00 ,  G01N27/407

    CPC classification number: G01N33/0009 ,  G01N27/4077

    Abstract: A protector (160) is inserted into a metallic shell (110) such that at least a portion of each gas introduction hole (167) is located on the base end side with respect to the forward end (110b) of the metallic shell. The metallic shell has a gas introduction space S2 defined by a forward-end-side inner surface (113b) of the metallic shell and an outer surface (160d) of the protector and which guides a gas-to-be-detected (exhaust gas G) from a region on the forward end side of the metallic shell into the gas introduction holes of the protector. The base end of the forward end portion (121) of the detection element (120) is located on the base end side with respect to the forward end (167b) of each gas introduction hole, and the forward end of the forward end portion is located on the forward end side with respect to the base end (167c) of each gas introduction hole.

    Abstract translation: 保护器（160）插入到金属壳体（110）中，使得每个气体引入孔（167）的至少一部分相对于金属壳体的前端（110b）位于基端侧。 金属壳具有由金属壳的前端侧内表面（113b）和保护器的外表面（160d）限定的气体引入空间S2，并且引导气体被检测（废气 G）从金属壳的前端侧的区域进入保护器的气体导入孔。 检测元件（120）的前端部（121）的基端相对于各气体导入孔的前端（167b）位于基端侧，前端部的前端为 位于相对于每个气体导入孔的基端（167c）的前端侧。

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