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公开(公告)号：US10048153B2
公开(公告)日：2018-08-14
申请号：US14836531
申请日：2015-08-26
摘要： 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.
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公开(公告)号：US09891138B2
公开(公告)日：2018-02-13
申请号：US14836515
申请日：2015-08-26
发明人： Toshiki Hirokawa , Hiroshi Harada
CPC分类号： G01M15/08 , F23Q7/001 , F23Q2007/005
摘要： 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.
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公开(公告)号：US09739487B2
公开(公告)日：2017-08-22
申请号：US14457618
申请日：2014-08-12
CPC分类号： F23Q7/001 , F02P19/02 , F23Q2007/002 , G01L23/221
摘要： 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.
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