公开(公告)号：US09739487B2

公开(公告)日：2017-08-22

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: F23Q7/22 ,  F23Q7/00 ,  F02P19/02 ,  G01L23/22

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.

公开(公告)号：US20140352640A1

公开(公告)日：2014-12-04

申请号：US14368577

申请日：2012-12-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Manabu Okinaka ,  Yoshihiro Yamamoto ,  Hiroyuki Suzuki ,  Akimitsu Sassa

IPC: F02P19/02 ,  G01L19/00 ,  F23Q7/00 ,  G01M15/08

CPC classification number: F02P19/028 ,  F23Q7/001 ,  F23Q2007/002 ,  G01L19/00 ,  G01M15/08

Abstract: A ceramic glow plug equipped with a pressure sensor including a ceramic heater, a holding device, a housing sleeve, a housing, a movable member and a pressure sensor. A heat-generating main portion P whose resistance is 75% of the total resistance of the ceramic heater is located forward of the forward end of the holding sleeve.

Abstract translation: 一种装有压力传感器的陶瓷预热塞，包括陶瓷加热器，保持装置，壳体套筒，壳体，可移动部件和压力传感器。 电阻为陶瓷加热器的总电阻的75％的发热主体P位于保持套筒的前端的前方。

公开(公告)号：US10244583B2

公开(公告)日：2019-03-26

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 ,  F23Q7/00

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.

公开(公告)号：US09422913B2

公开(公告)日：2016-08-23

申请号：US14368577

申请日：2012-12-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Manabu Okinaka ,  Yoshihiro Yamamoto ,  Hiroyuki Suzuki ,  Akimitsu Sassa

IPC: F23Q7/00 ,  F02P19/02 ,  G01L19/00 ,  G01M15/08

CPC classification number: F02P19/028 ,  F23Q7/001 ,  F23Q2007/002 ,  G01L19/00 ,  G01M15/08

Abstract: A ceramic glow plug equipped with a pressure sensor including a ceramic heater, a holding device, a housing sleeve, a housing, a movable member and a pressure sensor. A heat-generating main portion P whose resistance is 75% of the total resistance of the ceramic heater is located forward of the forward end of the holding sleeve.

Abstract translation: 一种装有压力传感器的陶瓷预热塞，包括陶瓷加热器，保持装置，壳体套筒，壳体，可移动部件和压力传感器。 电阻为陶瓷加热器的总电阻的75％的发热主体P位于保持套筒的前端的前方。