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公开(公告)号：US10996196B2
公开(公告)日：2021-05-04
申请号：US16106367
申请日：2018-08-21
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Norimasa Osawa , Masayuki Motomura , Keisuke Tashima
IPC: G01N27/626 , G01N27/70
Abstract: A particulate sensor (10) to be attached to a gas flow pipe EP through which a gas to be measured EG containing particulates S flows. The particulate sensor (10) includes a gas introduction discharge pipe (31); a discharge element (60) including a discharge electrode member (62) maintained at a discharge potential DV and which electrifies particulates contained in the gas under measurement, and a sealed portion (60C) located on a proximal end side GK of an element distal end portion and in which the discharge electrode member is disposed and insulated from the outer surface (60CS) thereof; a surrounding member (38, 39) maintained at a first potential SGND; and an electrically conductive glass seal (37) which establishes electrical communication between the surrounding member and the pipe (31), and is in close contact with the outer surface of the sealed portion of the discharge element to provide gastight sealing.
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公开(公告)号：US10006883B2
公开(公告)日：2018-06-26
申请号：US14591499
申请日：2015-01-07
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Norimasa Osawa , Keisuke Tashima , Hirokazu Murase , Toshiya Matsuoka
IPC: G01N27/70
CPC classification number: G01N27/70
Abstract: A particulate sensor (1) includes an ion source (15) and a reference potential member (45). The particulate sensor (1) detects particulates S contained in a gas under measurement EG by means of ions CP. The ion source (15) includes a ceramic structure (100) having a ceramic laminate (101) and a discharge electrode member (110). The discharge electrode member (110) has an inter-layer portion (112A, 111) embedded between the layers of the ceramic laminate (101) and an exposed portion (112B) extending from the inter-layer portion (112A, 111) to a position outside the ceramic laminate (101). The discharge electrode member (110) generates the gaseous discharge between the reference potential member (45) and the exposed portion (112B) including one or more needle-shaped distal end portions (1125) upon application of a constant DC discharge potential PV2.
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公开(公告)号：US09322680B2
公开(公告)日：2016-04-26
申请号：US13901179
申请日：2013-05-23
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Kunihiko Yonezu , Toshiya Matsuoka , Norimasa Osawa , Hisaharu Nishio , Tomohiro Tajima
IPC: G01D11/30 , G01N27/407
CPC classification number: G01D11/30 , G01N27/4078
Abstract: A thin plate member which has a groove portion recessed toward the inside in a radial direction with a gap interposed between the thin plate member and the outer surface of a site on the front end side of a main body section. At least one end of the thin plate member is joined to the outer surface of the main body section and is provided radially outside the site on the front end side of the main body section. A seal member is disposed in the groove portion and has elasticity due to resin. Since the gap functions as a heat-insulating layer and is interposed between the seal member and the main body section, heat conduction from the main body section, that is, heat conduction through a first pathway is reduced, and thus deterioration of the seal member due to heat is suppressed.
Abstract translation: 一种薄板构件，其具有在径向方向上向内侧凹陷的槽部，并且间隙插入在薄板构件与主体部的前端侧的位置的外表面之间。 薄板构件的至少一端与主体部的外表面接合，并且设置在主体部的前端侧的位置的径向外侧。 密封构件设置在槽部中并且由于树脂而具有弹性。 由于该间隙作为绝热层而发挥作用，并且设置在密封部件与主体部之间，所以来自主体部的热传导，即通过第一路径的热传导减少，密封部件的劣化 由于热量被抑制。
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Patent Agency Ranking
公开(公告)号：US20150020574A1
公开(公告)日：2015-01-22
申请号：US14372521
申请日：2013-02-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Norimasa Osawa , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01N1/2252 , F01N2560/02 , F01N2560/05 , G01M15/102 , G01N15/0656 , G01N33/0027 , G01N33/0036 , G01N2291/02408
Abstract: A particulate sensor including a sensor unit (300) having an ion generation section (611, 361, 322); an electric charge section (612) for electrically charging at least portion of particulates S using ions PI; a capture section (616, 617, 316, 326, 362) for trapping at least portion of the ions PI not used for electrically charging the particulates S; and a sensor ground section (340, 310v, 330v3) connected to the capture section and having a first floating potential corresponding to the amount of the ions PI trapped by the capture section. The sensor unit can detect the amount of the particulates S in the gas on the basis of the electric potential of the sensor ground section. The sensor ground section is covered with insulating ceramic at that outer portion of the sensor unit which comes into contact with the gas.
Abstract translation: 一种颗粒传感器，包括具有离子产生部分（611,361,322）的传感器单元（300）; 用于使用离子PI对至少部分微粒S进行充电的电荷部分（612）; 捕获部分（616,617,316,326,362），用于捕获不用于对微粒S进行充电的至少部分离子PI; 以及传感器接地部分（340,310v，330v3），其连接到所述捕获部分并且具有对应于由所述捕获部分捕获的离子PI的量的第一浮动电位。 传感器单元可以基于传感器接地部分的电位来检测气体中的微粒S的量。 在与气体接触的传感器单元的外部，传感器接地部分覆盖有绝缘陶瓷。
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公开(公告)号：US10209173B2
公开(公告)日：2019-02-19
申请号：US15305320
申请日：2015-08-21
Applicant: NGK Spark Plug Co., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Norimasa Osawa , Keisuke Tashima , Toshiya Matsuoka
Abstract: A particulate sensor includes: an inner metallic member which is maintained at a first potential and which has a gas introduction pipe into which a target gas is introduced; a tubular outer metallic member which surrounds the radially outer circumference of the inner metallic member and which is attached to a gas flow pipe to thereby be maintained at a ground potential; and an insulating spacer which is interposed between the inner metallic member and the outer metallic member so as to electrically insulate them from each other and which has a tubular gas contact portion which is exposed to the interior of the gas flow pipe and comes into contact with the gas under measurement. The insulating spacer has a heater for heating the gas contact portion. The heater includes a heat generation resistor embedded in the insulating spacer.
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公开(公告)号：US10401273B2
公开(公告)日：2019-09-03
申请号：US15517420
申请日：2015-10-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Norimasa Osawa , Hirokazu Murase
Abstract: A particle detection system (1) includes a particle sensor (10) having a detection section (11) exposed to a gas under measurement EG. The particle sensor (10) includes an insulating member (121, 100), and a heater section (150, 105) for heating at least a portion of the gas contact surface (121s, 101s) of the insulating member (121, 100). The particle detection system (1) includes adhesive restraining energization means (225, 223, S4, S10) for heating the gas contact surface (121s, 101s) to an adhesion restraining temperature Td at which adhesion of the particles S to the gas contact surface (121s, 101s) is restrained as compared with the case where the heater section is not energized, wherein adhering particles SA which are particles adhering to the gas contact surface (121s, 101s) burn at the particle burning temperature Tb.
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公开(公告)号：US09476807B2
公开(公告)日：2016-10-25
申请号：US14372521
申请日：2013-02-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Norimasa Osawa , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01N1/2252 , F01N2560/02 , F01N2560/05 , G01M15/102 , G01N15/0656 , G01N33/0027 , G01N33/0036 , G01N2291/02408
Abstract: A particulate sensor including a sensor unit (300) having an ion generation section (611, 361, 322); an electric charge section (612) for electrically charging at least portion of particulates S using ions PI; a capture section (616, 617, 316, 326, 362) for trapping at least portion of the ions PI not used for electrically charging the particulates S; and a sensor ground section (340, 310v, 330v3) connected to the capture section and having a first floating potential corresponding to the amount of the ions PI trapped by the capture section. The sensor unit can detect the amount of the particulates S in the gas on the basis of the electric potential of the sensor ground section. The sensor ground section is covered with insulating ceramic at that outer portion of the sensor unit which comes into contact with the gas.
Abstract translation: 一种颗粒传感器，包括具有离子产生部分（611,361,322）的传感器单元（300）; 用于使用离子PI对至少部分微粒S进行充电的电荷部分（612）; 捕获部分（616,617,316,326,362），用于捕获不用于对微粒S进行充电的至少部分离子PI; 以及传感器接地部分（340,310v，330v3），其连接到所述捕获部分并且具有对应于由所述捕获部分捕获的离子PI的量的第一浮动电位。 传感器单元可以基于传感器接地部分的电位来检测气体中的微粒S的量。 在与气体接触的传感器单元的外部，传感器接地部分覆盖有绝缘陶瓷。
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公开(公告)号：US09335311B2
公开(公告)日：2016-05-10
申请号：US13944273
申请日：2013-07-17
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Kunihiko Yonezu , Norimasa Osawa , Hisaharu Nishio
IPC: G01N7/00 , G01N33/00 , G01N27/406
CPC classification number: G01N33/0009 , G01N27/4062
Abstract: A gas sensor (200) in which individual ones of connection terminals (30) have, at a rear end portion, a first connection portion (31) connected to a corresponding connector terminal (60). Individual ones of the connector terminals have, at an end portion on a side toward separator (40), a second connection portion (61) connected to the first connection portion. One of the first and second connection portions assumes the form of an insertion piece (61g), and the other assumes the form of a female portion (31g) into which the insertion piece is inserted. At least one of the insertion piece and the female portion has an elastic portion (31a). The insertion piece is fitted into the female portion, and the elastic portion thereby elastically bends, whereby the first and second connection portions are elastically connected.
Abstract translation: 一种气体传感器（200），其中各个连接端子（30）在后端部分具有连接到相应连接器端子（60）的第一连接部分（31）。 各个连接器端子在朝向分离器（40）的一侧的端部具有连接到第一连接部分的第二连接部分（61）。 第一和第二连接部分中的一个呈现为插入件（61g）的形式，另一个呈现插入件插入其中的阴部分（31g）的形式。 插入片和阴部中的至少一个具有弹性部（31a）。 插入件装配到阴部分中，弹性部分弹性弯曲，由此第一和第二连接部分弹性连接。
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