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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：US09915587B2
公开(公告)日：2018-03-13
申请号：US14420960
申请日：2013-09-10
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Keisuke Tashima , Toshiya Matsuoka
CPC classification number: G01M15/102 , G01N15/06 , G01N15/0656 , G01N27/70 , G01N33/0009 , G01N2015/0046
Abstract: A particulate sensor (1) which detects particulates S contained in a gas under measurement (EG) flowing within a gas flow pipe (EP) has a space forming portion (12) and an ion source (15). The space forming portion (12) projects into the gas flow pipe EP and forms an internal space MX. The space forming portion (12) has an introduction port (43I) and a discharge port (48O) for discharging from the internal space MX the gas EGI introduced through the introduction port (43I). The source (15) produces ions CP by gaseous discharge. The space forming portion (12) is configured such that the introduced gas EGI is discharged from the internal space MX through the discharge port (48O), the gas under measurement EG is introduced into the internal space MX through the introduction port (43I), and the introduced gas EGI is mixed with the ions CP produced by the ion source (15).
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公开(公告)号：US09581069B2
公开(公告)日：2017-02-28
申请号：US14374247
申请日：2013-03-08
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: F01N11/00 , F01N2560/05 , G01M15/102 , G01N15/0656 , G01N27/68 , G01N2015/0046 , G01R31/025
Abstract: A particulate detection system (1) for detecting the amount of particulates S in a gas under measurement EG includes a detection section (10), a drive circuit (210, 240), and a drive control section (225). The detection section includes a first potential member (31, 12, 13) maintained at a first potential PV1, a second potential member (14, 51, 53) maintained at a second potential PVE, PV3, and an insulating member (121, 77, 76) disposed between the first and second potential members. The system includes insulation test means (215, S3, 245, S5) for testing the degree of insulation between the first and second potential members. The drive control section includes drive permission/prohibition determination means S4, S6 for determining, on the basis of the degree of insulation tested by the insulation test means, whether to permit the drive of the detection section by the drive circuit.
Abstract translation: 用于检测被测气体中的微粒S量的微粒检测系统（1）包括检测部分（10），驱动电路（210,240）和驱动控制部分（225）。 检测部分包括保持在第一电位PV1的第一电位部件（31,12,13），保持在第二电位PVE，PV3的第二电位部件（14,51,53）和绝缘部件 ，76）设置在第一和第二电位部件之间。 该系统包括用于测试第一和第二潜在构件之间的绝缘程度的绝缘测试装置（215,3S，245，S5）。 驱动控制部分包括驱动允许/禁止确定装置S4，S6，用于基于由绝缘测试装置测试的绝缘程度来确定是否允许驱动电路驱动检测部分。
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公开(公告)号：US20150204759A1
公开(公告)日：2015-07-23
申请号：US14420960
申请日：2013-09-10
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Keisuke Tashima , Toshiya Matsuoka
CPC classification number: G01M15/102 , G01N15/06 , G01N15/0656 , G01N27/70 , G01N33/0009 , G01N2015/0046
Abstract: A particulate sensor (1) which detects particulates S contained in a gas under measurement (EG) flowing within a gas flow pipe (EP) has a space forming portion (12) and an ion source (15). The space forming portion (12) projects into the gas flow pipe EP and forms an internal space MX. The space forming portion (12) has an introduction port (43I) and a discharge port (48O) for discharging from the internal space MX the gas EGI introduced through the introduction port (43I). The source (15) produces ions CP by gaseous discharge. The space forming portion (12) is configured such that the introduced gas EGI is discharged from the internal space MX through the discharge port (48O), the gas under measurement EG is introduced into the internal space MX through the introduction port (43I), and the introduced gas EGI is mixed with the ions CP produced by the ion source (15).
Abstract translation: 检测在气体流量管（EP）内流动的被测气体（EG）中所含的微粒S的微粒传感器（1）具有空间形成部（12）和离子源（15）。 空间形成部分（12）突出到气体流量管EP中并形成内部空间MX。 空间形成部分（12）具有用于从内部空间MX排出通过引入口（43I）引入的气体EGI的引入口（43I）和排出口（48O）。 源（15）通过气体放电产生离子CP。 空间形成部分（12）被构造成使得引入气体EGI通过排出口（48O）从内部空间MX排出，测量气体EG通过引入口（43I）被引入到内部空间MX中， 引入气体EGI与由离子源（15）产生的离子CP混合。
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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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Patent Agency Ranking
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：US10330579B2
公开(公告)日：2019-06-25
申请号：US14515608
申请日：2014-10-16
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Toshiya Matsuoka , Keisuke Tashima
Abstract: A particulate amount determination section of a particulate measurement system corrects a measurement signal or the amount of particulates determined from the measurement signal based on one or a plurality of three operating condition parameters selected from speed of the vehicle, rotational speed of the internal combustion engine and torque of the internal combustion engine.
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公开(公告)号：US09395273B2
公开(公告)日：2016-07-19
申请号：US14367378
申请日：2012-11-22
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01M15/102 , G01N1/2252 , G01N1/28 , G01N15/0656 , G01N33/0027 , G01N2001/2255 , G01N2015/0046
Abstract: A particulate detection system (1) includes detection section (10), compressed air source (300) which includes compressor (301) for producing compressed air AK, compressor drive circuit (320) and control means (100). The detection section includes a gas jetting source (11). A drive condition for jetting air AR from jetting hole (31N) at a first flow rate Q1 is defined as a first drive condition JK1, and a drive condition for jetting the air AR at a second flow rate Q2 smaller than the first flow rate Q1 is defined as a second drive condition JK2. The control means includes first instruction means S5 for driving the compressor under the first drive condition JK1 when the quantity of the particulates S is detected, and second instruction means S6 for driving the compressor under the second drive condition JK2 when the quantity of the particulates S is not detected.
Abstract translation: 微粒检测系统（1）包括检测部分（10），压缩空气源（300），其包括用于产生压缩空气AK的压缩机（301），压缩机驱动电路（320）和控制装置（100）。 检测部包括气体喷射源（11）。 将用于以第一流量Q1喷射空气AR的喷射空气AR的驱动条件定义为第一驱动条件JK1，以及用于以比第一流量Q1小的第二流量Q2喷射空气AR的驱动条件 被定义为第二驱动条件JK2。 控制装置包括当检测到微粒S的量时在第一驱动条件JK1下驱动压缩机的第一指令装置S5和当第二驱动条件JK2下的微粒S的量驱动压缩机的第二指令装置S6 没有检测到。
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公开(公告)号：US20150285711A1
公开(公告)日：2015-10-08
申请号：US14367378
申请日：2012-11-22
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01M15/102 , G01N1/2252 , G01N1/28 , G01N15/0656 , G01N33/0027 , G01N2001/2255 , G01N2015/0046
Abstract: A particulate detection system (1) includes detection section (10), compressed air source (300) which includes compressor (301) for producing compressed air AK, compressor drive circuit (320) and control means (100). The detection section includes a gas jetting source (11). A drive condition for jetting air AR from jetting hole (31N) at a first flow rate Q1 is defined as a first drive condition JK1, and a drive condition for jetting the air AR at a second flow rate Q2 smaller than the first flow rate Q1 is defined as a second drive condition JK2. The control means includes first instruction means S5 for driving the compressor under the first drive condition JK1 when the quantity of the particulates S is detected, and second instruction means S6 for driving the compressor under the second drive condition JK2 when the quantity of the particulates S is not detected.
Abstract translation: 微粒检测系统（1）包括检测部分（10），压缩空气源（300），其包括用于产生压缩空气AK的压缩机（301），压缩机驱动电路（320）和控制装置（100）。 检测部包括气体喷射源（11）。 将用于以第一流量Q1喷射空气AR的喷射空气AR的驱动条件定义为第一驱动条件JK1，以及用于以比第一流量Q1小的第二流量Q2喷射空气AR的驱动条件 被定义为第二驱动条件JK2。 控制装置包括当检测到微粒S的量时在第一驱动条件JK1下驱动压缩机的第一指令装置S5和当第二驱动条件JK2下的微粒S的量驱动压缩机的第二指令装置S6 没有检测到。
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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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