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1. 发明专利

JP2008064741A Liquid state detecting sensor 有权
标题翻译：液体检测传感器
公开(公告)号：JP2008064741A
公开(公告)日：2008-03-21
申请号：JP2007175500
申请日：2007-07-03
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YAMAMOTO YUKIFUMI , SATO YOSHIKUNI , SASANUMA TAKEO , YOSHIDA AKIHIRO
IPC分类号： G01N27/416
摘要： PROBLEM TO BE SOLVED: To provide a liquid state detecting sensor that has a liquid concentration detecting element and can appropriately discharge air bubbles having entered an enclosing region and reduce the influence of the air bubbles on concentration detection or the like. SOLUTION: The sensor 1 includes a concentration sensor element 51, a holder member 55 for holding the tip 511 thereof in a state where the tip 511 is projected from an element holding hole 55H4 of itself, and a protector 58. The protector 58 is provided with a liquid circulation hole 58H1 or the like allowing liquid to circulate inside and outside the enclosing region EH. The holder member 55 has a tip surface 554S that faces the enclosing region EH and is orthogonal to the axis AX, and a tapered outer peripheral surface 554T whose diameter increases toward the base end side. In the circulation holes 58H1-58H4, own base end side ends 58H1K-58H4K are located higher than a hole rim 55H4F of the element holding hole 55H4, and the tip side ends 58H1S-58H4S are located lower than the base end side rim 554K of the outer peripheral surface 554T. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有液体浓度检测元件的液体状态检测传感器，并且可以适当地排出已经进入封闭区域的气泡并减少气泡对浓度检测等的影响。解决方案：传感器1包括浓度传感器元件51，用于将尖端511保持在其尖端511从其自身的元件保持孔55H4突出的状态的保持器构件55以及保护器58.保护器 58设置有允许液体在封闭区域EH内部和外部循环的液体循环孔58H1等。保持器构件55具有面向封闭区域EH并且与轴线AX正交的端面554S，以及直径朝向基端侧增大的锥形外周面554T。在循环孔58H1-58H4中，自身的基端侧端部58H1K-58H4K位于比元件保持孔55H4的孔缘55H4F高的位置，并且前端侧端部58H1S-58H4S位于比基端侧边缘554K低的位置外周面554T。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007163177A Liquid state detection sensor 有权
标题翻译：液体状态检测传感器
公开(公告)号：JP2007163177A
公开(公告)日：2007-06-28
申请号：JP2005356607
申请日：2005-12-09
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： SASANUMA TAKEO , SATO YOSHIKUNI , YAMAMOTO YUKIFUMI
IPC分类号： G01N27/04 , F01N3/00 , F01N3/08
摘要： PROBLEM TO BE SOLVED: To provide a liquid state detection sensor capable of preventing excessive temperature rise of a liquid state detection element (heating resistor).
SOLUTION: In this liquid state detection sensor 100, at the point of time after lapse of the first current-carrying time t1 (300 m-sec) which is shorter than the second current-carrying time t2 (700 m-sec) and longer than an initial current-carrying time t0 (100 m-sec) after start of current-carrying into the heating resistor 117, it is determined whether ΔV1(=V2-V1) is a smaller value than a threshold Q or not in the step SB. When determined to be ΔV1
摘要翻译：要解决的问题：提供一种能够防止液体状态检测元件（发热电阻体）过度升温的液状态检测传感器。解决方案：在该液状态检测传感器100中，在比第二通电时间t2短（700m-sec）的第一通电时间t1（300m-sec）经过之后的时间点）并且比开始加热到加热电阻117之后的初始载流时间t0（100m-sec）长，则确定ΔV1（= V2-V1）是否比阈值Q小的值在步骤SB中。当确定为ΔV1

3. 发明专利

JP2007155706A Liquid integrity detection device 有权
标题翻译：液体完整性检测装置
公开(公告)号：JP2007155706A
公开(公告)日：2007-06-21
申请号：JP2006283659
申请日：2006-10-18
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： SASANUMA TAKEO , SATO YOSHIKUNI
IPC分类号： G01N27/06 , F01N3/04 , F01N3/08 , G01F23/26 , G01N27/22
摘要： PROBLEM TO BE SOLVED: To provide a liquid state detection device capable of determining the stationary state of liquid by using an output acquired separately in a process for detecting a concentration value by carrying a current in a heating resistor. SOLUTION: A concentration conversion value Cn is determined from a differential value ΔVmn between each voltage value of the heating resister measured after start of energization (after 10 msec) and after elapse of a fixed time (after 700 msec). A concentration conversion value Cp is determined from a differential value ΔVmp between a voltage value measured after a determination time (after 500 msec) shorter than elapse of the fixed time and the voltage value after start of energization, and a differential value between both values is calculated as a concentration fluctuation width (S102). If the value is larger than a threshold K determined beforehand as a reference of the stationary state, it is determined that urea aqueous solution is not in the stationary state (S111). In the case out of the stationary state, even if an abnormal state of the urea aqueous solution is detected, reliability of determination is heightened by increasing the opportunity (the number of times) of detection of the abnormal state until being determined to be in the abnormal state. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种液状态检测装置，其能够通过使用在通过在加热电阻器中承载电流来检测浓度值的处理中分别获取的输出来确定液体的静止状态。解决方案：根据通电开始后（10msec）之后和经过固定时间（700ms后）之间测量的加热电阻器的每个电压值之间的差值ΔVmn来确定浓度转换值Cn。浓度转换值Cp根据在经过固定时间之后的确定时间（500msec之后）测量的电压值与开始通电后的电压值之间的差值ΔVmp来确定，并且两个值之间的差分值是计算为浓度波动宽度（S102）。如果该值大于预先确定为静止状态的参考值的阈值K，则确定尿素水溶液不处于静止状态（S111）。在静止状态的情况下，即使检测到尿素水溶液的异常状态，也可以通过增加异常状态的检测的次数（次数），直到确定为异常状态版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007064933A Correction method for liquid level detection device, and the liquid level detection device 审中-公开
标题翻译：液位检测装置的校正方法和液位检测装置
公开(公告)号：JP2007064933A
公开(公告)日：2007-03-15
申请号：JP2005254949
申请日：2005-09-02
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： SATO YOSHIKUNI , SASANUMA TAKEO , YAMAMOTO YUKIFUMI
IPC分类号： G01F25/00 , G01F23/26
摘要： PROBLEM TO BE SOLVED: To provide a correction method for a liquid level detection device and the liquid level detection device, capable of performing high-accuracy liquid level detection, by correcting the measured electrostatic capacity and obtaining corresponding detection value. SOLUTION: A reference displacement straight line (A), indicating the displacement relation between the level of urea solution and an electrostatic capacity is calculated beforehand, by using a reference sensor portion. In a liquid level sensor manufacturing process, the electrostatic capacity C 1 (l1) of a sensor portion, formed when the level of the urea solution is l1, is measured. Next a displacement straight line (B) of the sensor portion is calculated by the method of least squares, setting the zero value (0, 0) of the electrostatic capacity and a measured value (l1, C 0 (l1)) as parameters. Then correction values for making the displacement line (B) coincide with the reference line (A) are calculated. By using these correction values and correcting measured electrostatic capacities the completed liquid level sensor performs high-accuracy level detection . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够通过校正测量的静电电容并获得相应的检测值来执行高精度液位检测的液位检测装置和液位检测装置的校正方法。解决方案：通过使用参考传感器部分预先计算表示尿素溶液水平与静电容量之间的位移关系的参考位移直线（A）。在液位传感器制造过程中，测量当尿素溶液的液位为l1时形成的传感器部分的静电电容C 1（I 1）。接下来，通过最小二乘法的方法计算传感器部分的位移直线（B），设定静电电容的零值（0,0）和测量值（l1，C 0 （l1））作为参数。然后，计算使位移线（B）与基准线（A）一致的校正值。通过使用这些校正值并校正测量的静电电容，完成的液位传感器执行高精度电平检测。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2004239636A Gas sensor 审中-公开
标题翻译：气体传感器
公开(公告)号：JP2004239636A
公开(公告)日：2004-08-26
申请号：JP2003026243
申请日：2003-02-03
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： ISHIKAWA HIDEKI , SATO YOSHIKUNI , ONODA MORIO
IPC分类号： G01N29/00 , G01N29/18
CPC分类号： G01N2291/02809 , G01N2291/02818
摘要： PROBLEM TO BE SOLVED: To provide a gas sensor for accurately detecting gas concentration even under a high temperature.
SOLUTION: The gas sensor 10 comprises a measuring chamber 28, where gas GS flows in; and an element body 40 for detection facing the measuring chamber 28. The element body 40 for detection has an element case 42, where a protective film 48 is adhered to the bottom surface. In the element case 42, an acoustic matching board 50 nearly in a cylindrical shape and an ultrasonic element 51 are accommodated in a state being buried in a packed bed 99. Two recesses 94, 95 are formed at the packed bed 99 located at the upper position (in a direction opposite to the acoustic matching board 50 or the protective film 48) in a piezoelectric element 51.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供即使在高温下也能精确地检测气体浓度的气体传感器。气体传感器10包括测量室28，其中气体GS流入; 以及用于面向测量室28的检测的元件主体40.用于检测的元件主体40具有元件壳体42，其中保护膜48粘附到底表面。在元件壳体42中，以填充床99的形式埋设有几乎为圆筒形的声匹配板50和超声波元件51，在位于上部的填充床99上形成两个凹部94,95。压电元件51中的位置（与声匹配板50或保护膜48相反的方向）。版权所有（C）2004，JPO＆NCIPI

6. 发明专利

JP2004044600A Control device of gas concentration sensor, and using method of gas concentration sensor 审中-公开
公开(公告)号：JP2004044600A
公开(公告)日：2004-02-12
申请号：JP2003298613
申请日：2003-08-22
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： SATO YOSHIKUNI , ISHIDA NOBORU , ISHIKAWA HIDEKI , OSHIMA TAKAFUMI , SATO YASUFUMI
IPC分类号： G01N27/409 , F02D45/00 , G01N25/46 , G01N27/04 , G01N27/12 , G01N27/16 , G01N27/22 , G01N27/26 , G01N27/414 , G01N27/416 , G01N29/00 , G01N29/02 , G01N29/18
CPC分类号： G01N2291/02809
摘要： PROBLEM TO BE SOLVED: To provide a using method of a gas concentration sensor and a control device of the gas concentration sensor accurately measuring gas concentration. SOLUTION: In a step 100, judgment is made as to whether there is a predetermined air flow rate. In a step 110, processing for zero point correction is carried out. More specifically, gas concentration of purged gas is measured by the gas concentration sensor 4 in a condition that a purge valve 17 is closed, and a sensor output S1 at that time is obtained. The sensor output S1 is compared with a correct sensor output S0, and a difference ▵S between them is calculated. In subsequent measurement of gas concentration, a value S3 deducting the difference ▵S from an obtained sensor output S2 is used as a correct sensor output. In a subsequent step 120, a feed amount of purged gas, accordingly gas concentrate of purged gas to be supplied, is calculated. In a subsequent step 130, the purge valve 17 is driven, and a necessary feed amount of purged gas (A%) is supplied to an inlet pipe 2. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2003329659A Gas sensor and gas concentration detector 有权
标题翻译：气体传感器和气体浓度检测器
公开(公告)号：JP2003329659A
公开(公告)日：2003-11-19
申请号：JP2003041958
申请日：2003-02-20
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： SATO YOSHIKUNI , ISHIKAWA HIDEKI , ONODA MORIO , MORITA TAKASHI , ISHIDA NOBORU
IPC分类号： G01N29/00 , G01H5/00 , G01N29/02 , G01N29/18
CPC分类号： G01N2291/02809 , G01N2291/02818 , G01N2291/02881
摘要： PROBLEM TO BE SOLVED: To solve the problem of a gas sensor measuring the property of gas using a detecting vibration element such as an ultrasonic element, that a detection error is caused due to influence such as thermal expansion of a resin filling the interior of a case where the ultrasonic element is disposed.
SOLUTION: The inner peripheral surface of an element case 42 of the gas sensor 10 is formed as a tapered surface 100 having an angle of about 11 degrees to the vertical direction, and a part surrounded with the taper surface 100 and a protective film 48 of a storing part 43 is filled with a filler 49 which is a polyurethane. As a result, when the polyurethane foam is thermally expanded at a high temperature, the upward component force is received by the tapered surface 100 so that the influence of volume change due to expansion is hardly exerted toward the protective film 48. Accordingly, the projection of an element part 44 causing the deformation of the protective film is restrained, and the change ΔL in the propagation distance L to the reflecting part 33 is also restrained not to lower the detection accuracy. Further, reverberation which is the damped vibration after the ultrasonic element 51 is driven is shortened. The lower part of the tapered surface 100 may be formed as a curved surface.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题为了解决使用超声波元件等检测振动元件测量气体性质的气体传感器的问题，检测误差是由于填充树脂的树脂的热膨胀等影响而引起的设置超声波元件的情况的内部。解决方案：气体传感器10的元件壳体42的内周面形成为与垂直方向成约11度的角度的锥形表面100，以及由锥形表面100包围的部分和保护储存部分43的薄膜48填充有作为聚氨酯的填料49。结果，当聚氨酯泡沫体在高温下热膨胀时，向上分量的力被锥形表面100接收，使得由于膨胀引起的体积变化的影响几乎不向保护膜48施加。因此，突起导致保护膜变形的元件部分44被抑制，并且也抑制了到反射部33的传播距离L中的变化ΔL而不降低检测精度。此外，在超声波元件51被驱动之后的阻尼振动的混响被缩短。锥形表面100的下部可以形成为曲面。版权所有（C）2004，JPO

8. 发明专利

JP2003302386A Sensor 审中-公开
标题翻译：传感器
公开(公告)号：JP2003302386A
公开(公告)日：2003-10-24
申请号：JP2002107473
申请日：2002-04-10
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： ISHIKAWA HIDEKI , SATO YOSHIKUNI , TOMONO KEIGO , MORITA TAKASHI , ISHIDA NOBORU , OSHIMA TAKAFUMI
IPC分类号： G01N29/00 , G01N29/02 , H04R17/00 , G01N29/18
CPC分类号： G01N2291/02809
摘要： PROBLEM TO BE SOLVED: To provide a sensor structure in which propagating characteristics of an oscillating wave can be improved. SOLUTION: A detecting element body 40 includes a piezoelectric element 51 as a sensor element; an element case 42 made of a resin having openings at upper and lower ends; a protective film 48 provided so as to close the opening of the lower end of the case 42; and a filler 58 filled in the case 42 so as to seal the element 51. The case 42 includes a substantially hollow cylindrical housing part 43, and a flange 41 provided at the upper part of the housing part 43. The thickness t of the wall surface of the part 43 is set smaller than that of the flange 41. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供可以提高振荡波的传播特性的传感器结构。解决方案：检测元件主体40包括作为传感器元件的压电元件51; 由在上端和下端具有开口的树脂制成的元件外壳42; 设置为闭合壳体42的下端的开口部的保护膜48; 以及填充在壳体42中以便密封元件51的填充物58.壳体42包括基本上中空的圆柱形壳体部分43和设置在壳体部分43的上部的凸缘41.壁的厚度t 部分43的表面被设定为小于凸缘41的表面。（C）2004，JPO

9. 发明专利

JP2011210709A Plasma-jet ignition plug and ignition system 有权
标题翻译：等离子体喷射点火和点火系统
公开(公告)号：JP2011210709A
公开(公告)日：2011-10-20
申请号：JP2011037820
申请日：2011-02-24
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KAMEDA HIROYUKI , SATO YOSHIKUNI , NAKANO TEIJO , YAMAMURA TADASHI , KASAHARA DAISUKE
IPC分类号： H01T13/52 , F02P3/01 , F02P13/00 , H01T13/20
CPC分类号： H01T13/50 , H01T13/20
摘要： PROBLEM TO BE SOLVED: To maintain excellent ignitability over a long period of time.SOLUTION: A plasma jet ignition plug 1 includes an insulator 2 having an axial hole 4 extending therethrough in the direction of an axis CL1, a center electrode 5 inserted into the axial hole 4, and a ground electrode 27 disposed frontward of the front end of the insulator 2. The insulator 2 has a cavity 31 defined by the inner circumferential surface of the axial hole 4 and the front end surface of the center electrode 5 and opens frontward. The ground electrode 27 has a through-hole 28 for establishing communication between the cavity 31 and an outside. A front end portion of the center electrode 5 is formed into a taper portion 51 whose diameter reduces frontward in the direction of the axis CL1. The outside diameter of a front end of the taper portion 31 is smaller than the diameter of the through-hole 28. The cavity 31 has a substantially constant inside diameter along the direction of the axis CL1. Assuming that the inside diameter of the cavity 31 is DC (mm) and the length of the cavity 31 in the direction of the axis CL1 is LC (mm), the expression 0.5≤LC/DC
摘要翻译：要解决的问题：长时间保持良好的点火性。解决方案：等离子体火花塞1包括绝缘体2，绝缘体2具有沿轴线CL1的方向延伸穿过的轴向孔4，插入到中心电极5中的中心电极5 轴孔4和设置在绝缘体2的前端前方的接地电极27.绝缘体2具有由轴孔4的内周面和中心电极5的前端面形成的空腔31，向前。接地电极27具有用于在空腔31和外部之间建立连通的通孔28。中心电极5的前端部形成为直径在轴线CL1的方向上向前减小的锥形部51。锥形部分31的前端的外径小于通孔28的直径。空腔31沿着轴线CL1的方向具有基本上恒定的内径。假设空腔31的内径为DC（mm），并且空腔31在轴线CL1的方向上的长度为LC（mm），则满足表达式0.5≤LC/ DC <1.0。

10. 发明专利

JP2010015975A Spark plug for internal combustion engine, and its manufacturing method 有权
标题翻译：内燃机用火花塞及其制造方法
公开(公告)号：JP2010015975A
公开(公告)日：2010-01-21
申请号：JP2009100484
申请日：2009-04-17
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： NUNOME KENJI , SATO YOSHIKUNI
IPC分类号： H01T13/32 , H01T13/20 , H01T21/02
CPC分类号： H01T13/39 , H01T21/02
摘要： PROBLEM TO BE SOLVED: To provide a spark plug for an internal combustion which makes sure to prevent malfunction such as deterioration of ignition characteristics, and has superior durability and breaking resistance. SOLUTION: The spark plug 1 includes the center electrode 5, an insulator 2 having an axis hole 4 extending in an axial line CL1 direction, the main metal fitting 3, a ground electrode 27 extending from the tip part of the main metal fitting 3, a noble metal chip 31 on the center electrode side joined to the tip face of the center electrode 5, and the noble metal chip 32 on the ground electrode side which is joined to the tip face TS1 of the ground electrode 27, and in which its own tip face TS2 opposes to a side face side of the noble metal chip 31 on the center electrode side. The ground electrode 27 is bent so that an angle θ1 made by a first straight line AL1 and a second straight line AL2 becomes 120° or more and 140° or less. Moreover, the angle θ2 made by the tip face TS2 of the noble metal chip 32 on the ground electrode side and the axial line CL1 is made 0° or more and 3° or less. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于内燃的火花塞，其确保防止诸如点火特性的劣化的故障，并且具有优异的耐久性和抗断裂性。火花塞1包括中心电极5，具有沿轴线CL1方向延伸的轴孔4的绝缘体2，主金属配件3，从主金属的末端部延伸的接地电极27 接合件3，与中心电极5的前端面连接的中心电极侧的贵金属片31和接地电极侧的贵金属片32接合在接地电极27的前端面TS1上，以及其中其自身的端面TS2与中心电极侧的贵金属芯片31的侧面相对。接地电极27弯曲，使得由第一直线AL1和第二直线AL2形成的角度θ1为120°以上且140°以下。此外，由接地电极侧的贵金属芯片32的前端面TS2和轴线CL1形成的角度θ2为0°以上3°以下。版权所有（C）2010，JPO＆INPIT

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