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：US20160076971A1

公开(公告)日：2016-03-17

申请号：US14836515

申请日：2015-08-26

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Toshiki HIROKAWA ,  Hiroshi HARADA

IPC: G01M15/08

CPC classification number: G01M15/08 ,  F23Q7/001 ,  F23Q2007/005

Abstract: A pressure sensor including a rod-shaped member, a tubular housing, a variable member and a pressure measuring element. The variable member is entirely disposed within the housing, is connected to the housing and the rod-shaped member, and deforms when the rod-shaped member is displaced relative to the housing along an axial direction. The variable member includes a first portion connected to the rod-shaped member, a second portion connected to the housing, and a bent portion which connects the first portion and the second portion to each other and has a bent shape. A portion of the second portion is a pressure receiving portion which displaces the rod-shaped member in the axial direction when receiving a pressure. The pressure receiving portion of the second portion has a substantially uniform thickness, and the thickness of the pressure receiving portion of the second portion is larger than that of the first portion.

Abstract translation: 一种压力传感器，包括杆状构件，管状壳体，可变构件和压力测量元件。 可变构件完全设置在壳体内，连接到壳体和杆状构件，并且当杆状构件相对于壳体沿轴向移位时变形。 可变构件包括连接到杆状构件的第一部分，连接到壳体的第二部分和将第一部分和第二部分彼此连接并具有弯曲形状的弯曲部分。 第二部分的一部分是在接收压力时使杆状构件沿轴向移位的受压部。 第二部分的压力接收部分具有大致均匀的厚度，并且第二部分的受压部分的厚度大于第一部分的受压部分的厚度。

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。