公开(公告)号：US09897063B2

公开(公告)日：2018-02-20

申请号：US14356316

申请日：2013-04-18

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke Maeda ,  Yoshihiro Nakamura ,  Masahiro Kawakatsu ,  Hiroyuki Suzuki

IPC: B23K26/00 ,  F02P19/02 ,  F23Q7/00 ,  B23K26/244 ,  B23K26/28

CPC classification number: F02P19/028 ,  B23K26/244 ,  B23K26/28 ,  F23Q7/001 ,  F23Q2007/005

Abstract: A glow plug (100) includes: a housing (130) having a metal shell (110) and a cap unit (120); and a heater unit (150). A coupling member (180) is joined with the housing (130) and is also joined with the heater unit (150) at its edge portion (188), so as to enable the heater unit (150) to move along an axis line O and couple the heater unit (150) with the housing (130). When the edge portion 188 of the coupling member 180 is irradiated with a laser, at least part of the edge portion (188) melted by laser welding fills a gap (50) between the coupling member (180) and the heater unit (150) to form a welded part (210). As a result, even when there is a gap prior to welding, the weld strength between the coupling member (180) and the heater unit (150) can be maintained.

公开(公告)号：US20150048066A1

公开(公告)日：2015-02-19

申请号：US14356316

申请日：2013-04-18

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke Maeda ,  Yoshihiro Nakamura ,  Masahiro Kawakatsu ,  Hiroyuki Suzuki

IPC: F02P19/02 ,  B23K26/20 ,  F23Q7/00

CPC classification number: F02P19/028 ,  B23K26/244 ,  B23K26/28 ,  F23Q7/001 ,  F23Q2007/005

Abstract: A glow plug (100) includes: a housing (130) having a metal shell (110) and a cap unit (120); and a heater unit (150). A coupling member (180) is joined with the housing (130) and is also joined with the heater unit (150) at its edge portion (188), so as to enable the heater unit (150) to move along an axis line O and couple the heater unit (150) with the housing (130). When the edge portion 188 of the coupling member 180 is irradiated with a laser, at least part of the edge portion (188) melted by laser welding fills a gap (50) between the coupling member (180) and the heater unit (150) to form a welded part (210). As a result, even when there is a gap prior to welding, the weld strength between the coupling member (180) and the heater unit (150) can be maintained.

Abstract translation: 电热塞（100）包括：具有金属壳（110）和盖单元（120）的壳体（130）; 和加热器单元（150）。 联接构件（180）与壳体（130）接合，并且在其边缘部分（188）处与加热器单元（150）接合，以使得加热器单元（150）能够沿着轴线O 以及将加热器单元（150）与壳体（130）联接。 当用激光照射联接构件180的边缘部分188时，通过激光焊接熔化的边缘部分（188）的至少一部分填充联接构件（180）和加热器单元（150）之间的间隙（50） 以形成焊接部件（210）。 结果，即使在焊接之前存在间隙，也可以保持联接构件（180）和加热器单元（150）之间的焊接强度。

公开(公告)号：US09702558B2

公开(公告)日：2017-07-11

申请号：US14521527

申请日：2014-10-23

Applicant: NGK Spark Plug Co., Ltd.

Inventor： Tomonari Hatta ,  Yoshihiro Nakamura

IPC: G01M15/00 ,  F23Q7/00 ,  F02P19/02 ,  G01L23/10 ,  B23K15/00 ,  B23K26/28 ,  G01L7/00 ,  G01L23/08

CPC classification number: F23Q7/001 ,  B23K15/0006 ,  B23K26/28 ,  F02P19/028 ,  F23Q2007/002 ,  F23Q2007/005 ,  G01L7/00 ,  G01L23/08 ,  G01L23/10

Abstract: A combustion pressure sensor having a tubular housing extending in an axial direction DX, a displacement member disposed within the housing, and a tubular connection member which elastically connects the displacement member to the housing. The combustion pressure sensor has a housing weld W1 that connects the housing and the connection member At least a circumferential portion of the housing weld is a bulge housing weld RW1 which bulges in a radial direction DR.

公开(公告)号：US09366594B2

公开(公告)日：2016-06-14

申请号：US13970360

申请日：2013-08-19

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke Maeda ,  Yoshihiro Nakamura ,  Masayoshi Matsui

IPC: G01M15/08 ,  G01L23/00 ,  G01L23/08 ,  G01L23/22

CPC classification number: G01L23/00 ,  G01L23/08 ,  G01L23/22

Abstract: A combustion pressure sensor (1) includes a housing (2) having an axial hole (23), a flexible member (8) fixed at one end to the housing (2) and being displaceable along the direction of axis (CL1), a pressure transmission body (3) whose outer circumferential surface is fixed to the other end of the flexible member (8), and a sensor element (42) fixed to the housing (2) and outputting a signal on the basis of a pressure applied thereto from the pressure transmission body (3). The housing (2) includes a main body portion (21) having a screw portion (24), and a cap member (22) having a press contact portion (26) which is pressed against the internal combustion engine when the screw portion (24) is screwed into the mounting hole of an internal combustion engine. The one end of the flexible member (8) is fixed to the main body portion (21).

公开(公告)号：US09347854B2

公开(公告)日：2016-05-24

申请号：US13927866

申请日：2013-06-26

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kenjiro Nishiyuki ,  Yoshihiro Nakamura ,  Masayoshi Matsui

IPC: G01M15/08 ,  F23Q7/00

CPC classification number: G01M15/08 ,  F23Q7/001 ,  F23Q2007/002

Abstract: A glow plug with a pressure sensor including a heater member (4) having a heating element (9) disposed therein and projecting from a forward end of a metallic shell (2), a center rod (3) having, at its forward end, a connection portion (3A) to which a rear end portion of the heating element (9) is connected, and an annular clearance CR formed between the metallic shell and the heater member in a region located on the forward end side of a junction portion (14A) of a deformable member (14) joined to the heater member. A portion of the heating element located on the forward end side relative to the forward end of the connection portion is at least partially located on the radially inner side of the clearance CR, and the forward end of the connection portion is located on the forward end side relative to the forward end of the junction portion.

Abstract translation: 一种具有压力传感器的电热塞，包括具有设置在其中并从金属壳（2）的前端突出的加热元件（9）的加热器构件（4），中心杆（3）的前端， 连接有加热元件（9）的后端部分的连接部分（3A），以及形成在金属壳体和加热器部件之间的环形间隙（CR），其位于接合部分的前端侧 连接到加热器构件的可变形构件（14）的图14A所示。 位于相对于连接部的前端的前端侧的加热元件的一部分至少部分地位于间隙CR的径向内侧，连接部的前端位于前端 相对于接合部分的前端。