公开(公告)号：US20150047592A1

公开(公告)日：2015-02-19

申请号：US14457618

申请日：2014-08-12

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tadashi WATANABE ,  Yoshihiro YAMAMOTO ,  Toshiki HIROKAWA ,  Akimitsu SASSA

IPC: F23Q7/00 ,  F02P19/02

CPC classification number: F23Q7/001 ,  F02P19/02 ,  F23Q2007/002 ,  G01L23/221

Abstract: A glow plug includes a cylindrical housing, a rod-shaped heater, a membrane portion, and a pressure sensor. The cylindrical housing extends along an axial direction. The rod-shaped heater extending along the axial direction is displaced along the axial direction and has one end portion disposed within the housing, and an other end portion which is exposed from the housing. The membrane portion connects together the heater and the housing and has a multi-layer construction which has a first layer and a second layer of which at least part is positioned nearer to the other end portion in the axial direction of the heater than the first layer. The pressure sensor measures a pressure within a combustion chamber in which the other end portion is disposed by making use of a displacement of the heater. A thickness of the second layer is larger than a thickness of the first layer.

Abstract translation: 电热塞包括圆柱形壳体，杆状加热器，膜部分和压力传感器。 圆柱形壳体沿轴向方向延伸。 沿轴向方向延伸的杆状加热器沿着轴向移动，并且具有设置在壳体内的一个端部部分和从壳体露出的另一端部。 膜部将加热器和壳体连接在一起，并且具有多层结构，其具有第一层和第二层，该第一层和第二层至少部分地位于加热器的轴向方向上比第一层更靠近另一端部 。 压力传感器通过利用加热器的位移来测量在其中设置另一端部的燃烧室内的压力。 第二层的厚度大于第一层的厚度。

公开(公告)号：US20150334777A1

公开(公告)日：2015-11-19

申请号：US14710939

申请日：2015-05-13

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Akimitsu SASSA ,  Yoshihiro YAMAMOTO ,  Hiroshi HARADA

IPC: H05B3/00 ,  G01L9/00

CPC classification number: H05B3/0042 ,  F23Q7/001 ,  F23Q2007/002 ,  G01L9/0051 ,  H05B3/0014

Abstract: A glow plug including a heater (200) having a rear heat-generating element (260) formed of a resistance heat-generating element, and provided in an axial region thereof between a forward end (136) of a housing and a rear end (315) of a displacement member (300) located rearward of the forward end (136). The heat-generating element (260) is arranged separately from a forward heat-generating element (205) provided at a forward end portion of the heater.

Abstract translation: 一种电热塞，其包括具有由电阻发热元件形成的后部发热元件（260）的加热器（200），并且在其轴向区域中设置在壳体的前端（136）和后端（ 315）位于前端（136）后方的位移构件（300）。 发热元件（260）与设置在加热器的前端部的向前发热元件（205）分开设置。

公开(公告)号：US20160061683A1

公开(公告)日：2016-03-03

申请号：US14836531

申请日：2015-08-26

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kenjiro NISHIYUKI ,  Toshiki HIROKAWA ,  Akimitsu SASSA

IPC: G01L23/22 ,  G01M15/04

CPC classification number: G01L23/22 ,  F23Q7/001 ,  F23Q2007/005 ,  G01M15/042

Abstract: A variable member is connected to a rod-shaped member and connected to a tube portion to ensure airtightness within a housing, and deforms when the rod-shaped member is displaced relative to the housing along an axial direction. A position of the connection between the tube portion and the variable member in the axial direction is a position shifted from a rear end of a gap toward a front side by a predetermined length or a position at the front side with respect to the position shifted by the predetermined length. The predetermined length is a length which is 50% of a length of the gap in the axial direction.

Abstract translation: 可变构件连接到杆状构件并连接到管部分以确保壳体内的气密性，并且当杆状构件相对于壳体沿着轴向移位时变形。 管部与可变构件之间在轴向上的连接的位置是从间隙的后端朝向前侧偏移预定长度或相对于偏移的位置在前侧的位置的位置 预定长度。 预定长度是沿轴向间隙的长度的50％的长度。

公开(公告)号：US20160177909A1

公开(公告)日：2016-06-23

申请号：US14579459

申请日：2014-12-22

Applicant: NGK Spark Plug Co., LTD.

Inventor： Hiroyuki SUZUKI ,  Hiroki TSUCHIYA ,  Akimitsu SASSA

IPC: F02P19/02 ,  F23Q7/00

CPC classification number: F23Q7/001 ,  F23Q2007/002 ,  F23Q2007/005

Abstract: A glow plug includes a housing having an axial hole extending in an axial line direction; a ceramic heater that is relatively displaceable with respect to the housing along the axial line direction and has at least outer surface made of ceramic; and a pressure sensor fixed to the housing and configured to output a signal based on the relative displacement of the ceramic heater. A fixed member fixed to the ceramic heater while the ceramic heater is arranged to an inner circumference of the fixed member. A welded member is welded to an outer circumference of the fixed member. An inner circumferential surface of a portion of the fixed member to which at least the welded member is welded is spaced apart from the outer surface of the ceramic heater.

Abstract translation: 电热塞包括具有沿轴线方向延伸的轴向孔的壳体; 陶瓷加热器，其相对于所述壳体沿着轴线方向相对移位并且具有至少由陶瓷制成的外表面; 以及压力传感器，其被固定到所述壳体并且被配置为基于所述陶瓷加热器的相对位移输出信号。 固定在陶瓷加热器上的固定部件，陶瓷加热器布置在固定部件的内圆周上。 焊接部件焊接在固定部件的外周。 固定构件的至少焊接部件焊接的部分的内周面与陶瓷加热器的外表面间隔开。