公开(公告)号：US09513252B2

公开(公告)日：2016-12-06

申请号：US14511334

申请日：2014-10-10

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tomohisa Fujita ,  Nobuhiro Inoue ,  Makoto Kume

IPC: G01N27/407

CPC classification number: G01N27/4077

Abstract: In a gas sensor (100), a base end portion (175b) of a second outer wall (175) of an outer protector (171) is connected airtightly to a forward end portion (164c) of a first inner wall (164) of an inner protector (161), and relations of A≦B

Abstract translation: 在气体传感器（100）中，外保护器（171）的第二外壁（175）的基端部分（175b）气密地连接到第一内壁（164）的前端部分（164c） 内部保护器（161），满足A≤B

公开(公告)号：US09194724B2

公开(公告)日：2015-11-24

申请号：US13863961

申请日：2013-04-16

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tomohisa Fujita ,  Nobuhiro Inoue ,  Makoto Kume

IPC: G01D11/24 ,  G01N27/407

CPC classification number: G01D11/245 ,  G01N27/4077

Abstract: In a gas sensor (100), a base end portion (175b) of a second outer wall (175) of an outer protector (171) is airtightly connected to a forward end portion (164c) of a first inner wall (164) of an inner protector (161). The outer protector (171) has a taper wall (172) which is located on the axially forward end side of the second outer wall (175). The taper wall (172) has the shape of a tapered tube whose diameter decreases toward the axially forward end side, and has a second outer hole (176), which is a forward end opening. The entire taper wall (172) is disposed on the axially forward end side in relation to the inner bottom wall (162) of the inner protector (161).

Abstract translation: 在气体传感器（100）中，外保护器（171）的第二外壁（175）的基端部（175b）与第一内壁（164）的前端部（164c）气密地连接 内部保护器（161）。 外保护器（171）具有位于第二外壁（175）的轴向前端侧的锥形壁（172）。 锥形壁（172）具有直径朝向轴​​向前端侧减小的锥形管的形状，并且具有作为前端开口的第二外孔（176）。 整个锥形壁（172）相对于内部保护器（161）的内部底壁（162）设置在轴向前端侧。

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。