公开(公告)号：US20220077661A1

公开(公告)日：2022-03-10

申请号：US17413239

申请日：2020-04-27

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke TSUGA ,  Keiji OZEKI

IPC: H01T13/20 ,  H01T13/06

Abstract: The spark plug includes a cylindrical insulator, a center electrode provided in the insulator, and a cylindrical metal shell provided around the insulator. A ledge portion of the metal shell has a frontward facing surface facing a front side, a rearward facing surface facing a rear side, and a connection surface connecting the rearward facing surface and the frontward facing surface. The rearward facing surface engages with a step portion of the insulator. The metal shell includes a front cylindrical portion connected to the front side of the ledge portion. The inner circumferential surface of the front cylindrical portion is connected to the frontward facing surface of the ledge portion via a chamfered surface or a rounded surface. A corner at which the connection surface and the frontward facing surface are connected is located on the front side with respect to a front end of the insulator.

公开(公告)号：US20180202886A1

公开(公告)日：2018-07-19

申请号：US15743744

申请日：2016-07-08

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsunori YAMADA ,  Shunsuke TSUGA ,  Yusuke FUJI ,  Junki IWABUCHI ,  Daiki GOTO

IPC: G01L23/18 ,  F02B77/08

CPC classification number: G01L23/18 ,  F02B77/085 ,  F02F1/24 ,  G01L19/0681 ,  G01L23/08 ,  G01L23/10

Abstract: A pressure sensor includes: a diaphragm joined to a front side of a housing via a joint portion; a sensor portion; a connection portion connecting the diaphragm to the sensor portion; and a heat receiving portion disposed at the front side of the diaphragm. When: a minimum value of an area of a minimum inclusion region which is a virtual region, which include a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour become minimum on a cross-section perpendicular to the axial line, is defined as a connection area Sn; and an area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is defined as a diaphragm effective area Sd, (Sn/Sd)≤0.25 is satisfied.

公开(公告)号：US20160056492A1

公开(公告)日：2016-02-25

申请号：US14780827

申请日：2014-02-05

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke TSUGA ,  Takafumi SHICHIDA ,  Tetsuya MORIKAWA ,  Nobuyuki HOTTA

IPC: H01M8/24 ,  H01M8/04

CPC classification number: H01M8/2457 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04022 ,  H01M8/04074 ,  H01M8/241 ,  H01M8/2425 ,  H01M8/2432 ,  H01M8/247 ,  H01M8/2483 ,  H01M2008/1293

Abstract: A fuel gas supply path in a fuel cell stack includes in series a first path, a second path, and a third path. In the second path, two inlets of the fuel gas in each of power generating cells included in the second path are located at a first position PA and a second position PB, and the position of one outlet of the fuel gas in each power generating cell is located at a third position PC. In the third path, an inlet of the fuel gas in each of power generating cells included in the third path is located at a position coinciding with the third position PC when the power generating cells are viewed in the stacking direction, and an outlet of the fuel gas in each power generating cell is located at a position between the first position PA and the second position PB.

Abstract translation: 燃料电池堆中的燃料气体供给路径包括串联的第一路径，第二路径和第三路径。 在第二路径中，包括在第二路径中的每个发电单元中的燃料气体的两个入口位于第一位置PA和第二位置PB，并且每个发电单元中的燃料气体的一个出口的位置 位于PC的第三个位置。 在第三路径中，当沿堆叠方向观察发电单元时，包括在第三路径中的每个发电单元中的燃料气体的入口位于与第三位置PC重合的位置处， 每个发电单元中的燃料气体位于第一位置PA和第二位置PB之间的位置。

公开(公告)号：US20140295308A1

公开(公告)日：2014-10-02

申请号：US14224339

申请日：2014-03-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke TSUGA ,  Takafumi SHICHIDA ,  Tetsuya MORIKAWA ,  Nobuyuki HOTTA

IPC: H01M8/04 ,  H01M8/24

CPC classification number: H01M8/04014 ,  H01M8/0267 ,  H01M8/04067 ,  H01M8/04074 ,  H01M8/2405 ,  H01M8/242 ,  H01M8/2465 ,  H01M8/247 ,  H01M8/248

Abstract: A fuel cell stack (1) includes a plurality of stacked power generation cells (3), a heat exchange unit (7) provided between adjacent two of the power generation cells, a fuel gas supply path arranged to supply the power generation cells with a fuel gas, and an oxidant gas supply path (3, 7, 33, 34, 38) arranged to supply the power generation cells with an oxidant gas, wherein the fuel gas supply path includes in series a first path (7, 31) passing through the heat exchange unit (7), a second path (3, 32, 35, 37) passing through some of the plurality of power generation cells (3) in parallel, and a third path (3, 32, 36) passing through the other power generation cells in parallel.

Abstract translation: 燃料电池堆（1）包括多个层叠的发电单元（3），设置在相邻的两个发电单元之间的热交换单元（7），设置成向发电单元提供一个 燃料气体和设置成向发电单元供给氧化剂气体的氧化剂气体供给路径（3,7,33,34,38），其中所述燃料气体供给路径串联包括通过的第一路径（7,31） 通过所述热交换单元（7），平行地穿过所述多个发电单元（3）中的一些的第二路径（3,32,35,37）和通过所述多个发电单元（3）的第三路径（3,32,36） 其他发电电池并联。