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公开(公告)号：US08295657B2
公开(公告)日：2012-10-23
申请号：US12712666
申请日：2010-02-25
CPC分类号： G01N33/2852 , G01N21/552 , G01N2021/7759 , G01N2021/7776
摘要： An optical fiber sensor includes: an optical fiber; a light source portion; and a light receiving portion. The optical fiber includes: a core that includes a grating that generates a clad mode upon receipt of light; a clad that covers the core; and a fiber jacket that covers the clad, wherein a part of the fiber jacket corresponding to an area where the grating is formed is removed so that the clad is contactable with the fuel. The light source portion includes a light cutting element that emits light, whose wavelength is within a wavelength band of the cladding mode toward the optical fiber. The light receiving portion that detects intensity of the light transmitted through the grating. The optical fiber, the light receiving portion and the light source portion are arranged linearly.
摘要翻译： 光纤传感器包括：光纤; 光源部; 和光接收部分。 光纤包括：芯，其包括在接收到光时产生包覆模式的光栅; 覆盖核心的包层; 以及覆盖所述包层的纤维护套，其中去除与形成所述光栅的区域对应的所述纤维套管的一部分，使得所述包层与所述燃料接触。 光源部包括发光，其波长在包层模式的波长带内朝向光纤。 光接收部，其检测透过光栅的光的强度。 光纤，光接收部分和光源部分线性地布置。
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公开(公告)号：US5661244A
公开(公告)日：1997-08-26
申请号：US408294
申请日：1995-03-22
申请人： Etsuo Nishimura , Tateki Mitani
发明人： Etsuo Nishimura , Tateki Mitani
CPC分类号： G01L19/141 , G01L19/0038
摘要： In a pressure sensor, a metallic pressure introducing pipe is fit into the pressure receiving inlet formed in a metallic housing and fixed there by welding. The housing has a flange portion in its upper portion, and the flange portion is fixed to the outer wall of a tank which is an object to be measured so that the pressure sensor body is located inside the tank. A porous filter made of fluoroplastics is arranged adjacently to the atmospheric pressure introducing inlet. An adhesive tape which is removable is attached to the atmospheric pressure introducing inlet. The pressure sensor can realize stabilized maintenance and highly reliable airtightness for a sensor element, less limitation to sensor layout design in a small space and also can surely introduce air with no drop of water and dust into the sensor.
摘要翻译： 在压力传感器中，将金属压力导入管嵌入形成在金属壳体内的受压入口，并通过焊接固定在压力传感器上。 壳体在其上部具有凸缘部分，并且凸缘部分固定到作为待测量对象的罐的外壁，使得压力传感器主体位于罐内。 由氟塑料制成的多孔过滤器与大气压力引入入口相邻。 可拆卸的胶带连接到大气压引入口。 压力传感器可实现传感器元件的稳定维护和高度可靠的气密性，较小的空间限制了传感器布局设计，并且还可以确保在传感器中不引入水和灰尘的空气。
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公开(公告)号：US20070044549A1
公开(公告)日：2007-03-01
申请号：US10557425
申请日：2005-02-10
申请人： Hiroshi Yoshioka , Tateki Mitani
发明人： Hiroshi Yoshioka , Tateki Mitani
IPC分类号： G01M19/00
CPC分类号： F02M25/0809
摘要： A leak detecting system for a transpiration purge system including a fuel tank 1 and a canister 13 includes a jet pump 8, which leads the atmosphere into the fuel tank 1 using a return flow of excess fuel of fuel pumped to an internal combustion engine, internal pressure measuring means 15, and fuel volume detecting means 18. After supplying the air from pressurizing means for a predetermined time, the leak detecting system judges that a leak is present when a holding pressure measurement value in a state in which the transpiration purge system is closed is lower than a decompression calculation value calculated from a pressurization measurement value, an air volume, and a leak hole diameter.
摘要翻译： 用于包括燃料箱1和罐13的蒸腾吹扫系统的泄漏检测系统包括喷射泵8，该喷射泵8使用泵送到内燃机的多余燃料的回流将内部空气引导到燃料箱1中，内部 压力测量装置15和燃料量检测装置18。 在从加压装置供给预定时间的空气之后，当蒸发吹扫系统关闭的状态下的保持压力测量值低于从加压计算出的减压计算值时，泄漏检测系统判断存在泄漏 测量值，空气量和泄漏孔直径。
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公开(公告)号：US5793297A
公开(公告)日：1998-08-11
申请号：US685677
申请日：1996-07-24
申请人： Takanobu Takeuchi , Tateki Mitani
发明人： Takanobu Takeuchi , Tateki Mitani
摘要： A pressure detection apparatus including a pressure detection diaphragm, pressure detection circuit for outputting a pressure detection signal proportional to a pressure applied to the pressure detection diaphragm and clamping circuit for clamping the pressure detection signal to a predefined maximum or minimum value when the detected pressure signal is larger than the maximum value or less than the minimum value. Signal clamping by the clamping circuit is cut-off or cancelled when the pressure applied to the pressure detection diaphragm causes an operational error. This operational error may be detected by forming part of the clamping circuit on a semiconductor diaphragm of the sensor. Also, a failure detection circuit may be used to detect sensor failure and then cancel signal clamping.
摘要翻译： 一种压力检测装置，包括压力检测膜片，压力检测电路，用于输出与施加到压力检测膜片的压力成比例的压力检测信号和夹紧电路，用于当检测到的压力信号时将压力检测信号钳位到预定的最大值或最小值 大于最大值或小于最小值。 当施加到压力检测膜片上的压力导致操作错误时，钳位电路的信号钳位被切断或取消。 可以通过在传感器的半导体膜片上形成夹紧电路的一部分来检测该操作错误。 此外，可以使用故障检测电路来检测传感器故障，然后取消信号钳位。
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公开(公告)号：US5212989A
公开(公告)日：1993-05-25
申请号：US710987
申请日：1991-06-06
申请人： Seiki Kodama , Atsushi Ueda , Toshio Iwata , Yasuo Tada , Tateki Mitani , Yasuyoshi Hatazawa , Mikio Bessho , Yuji Hase
发明人： Seiki Kodama , Atsushi Ueda , Toshio Iwata , Yasuo Tada , Tateki Mitani , Yasuyoshi Hatazawa , Mikio Bessho , Yuji Hase
IPC分类号： G01L9/00
CPC分类号： G01L19/141 , G01L19/0038 , G01L19/0084 , G01L19/0645
摘要： A pressure sensor comprising a hollow main body (11) defining a bore (14) extending therethrough and having a detection end and an output end. A pressure sensing assembly is disposed within said bore (14) to divide it into a detection cavity (17) and an output cavity (18) through which output signal lines from said pressure sensing assembly extend. A flexible diaphragm (19) is attached to the detection end of the bore to define a sealed detection cavity (17) in which a pressure transmitting liquid is filled. The pressure sensing assembly comprises support plate (24) welded to said main body (11) and supporting a pressure sensing element (26) within said detection cavity (17) through a mounting bed (4). The signal lines sealingly extend through said support plate (24) from said detection cavity (17) to said output cavity (18).
摘要翻译： 一种压力传感器，包括中空主体（11），其限定延伸穿过其中并且具有检测端和输出端的孔（14）。 压力感测组件设置在所述孔（14）内以将其分成检测腔（17）和输出腔（18），来自所述压力感测组件的输出信号线通过该输出空腔延伸。 柔性隔膜（19）附接到孔的检测端，以限定其中填充压力传递液体的密封检测腔（17）。 所述压力感测组件包括焊接到所述主体（11）的支撑板（24），并且通过安装床（4）在所述检测腔（17）内支撑压力感测元件（26）。 信号线通过所述支撑板（24）从所述检测腔（17）密封地延伸到所述输出腔（18）。
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公开(公告)号：US20110166771A1
公开(公告)日：2011-07-07
申请号：US13062616
申请日：2008-10-29
申请人： Tateki Mitani , Satoshi Nishikawa , Shingo Iwai
发明人： Tateki Mitani , Satoshi Nishikawa , Shingo Iwai
IPC分类号： F02D41/30
CPC分类号： F02D19/087 , F02D19/084 , F02D41/0025 , F02D41/182 , F02D2200/0611 , Y02T10/36
摘要： A fuel control system of the present invention is a fuel control system that controls a fuel injection quantity of an internal combustion engine by controlling combustion of a fuel at a theoretical air-fuel ratio, and is characterized in that the fuel control system estimates a volume of the fuel injection quantity from a measured refractive-index value of the fuel and controls it.
摘要翻译： 本发明的燃料控制系统是燃料控制系统，其通过控制燃料在理论空燃比的燃烧来控制内燃机的燃料喷射量，其特征在于，所述燃料控制系统估计体积 的燃料喷射量从燃料的测量的折射率值控制。
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17.发明申请Fuel evaporation gas leakage detecting system and method of detecting fuel evaporation gas leakage 失效燃油蒸发气体泄漏检测系统及检测燃料蒸发气体泄漏的方法公开(公告)号：US20050133097A1
公开(公告)日：2005-06-23
申请号：US10938559
申请日：2004-09-13
申请人： Tateki Mitani , Toshihide Kimisawa , Tsuyoshi Kato
发明人： Tateki Mitani , Toshihide Kimisawa , Tsuyoshi Kato
CPC分类号： F02M37/10 , F02M25/0818 , F02M37/025 , Y10T137/86075
摘要： A leak detecting system detects fuel gas leakage of a fuel tank. The detecting system includes a fuel pump, a jet pump, and a bent valve, which are disposed in the fuel tank. A fuel flow path system includes a relief line connected to the fuel pump for relieving an excess fuel, a relief flow path switching valve disposed in the relief line, and a sub-line for connecting the switching valve and the vent valve. An air flow path system includes a first air flow line to connect the vent valve to a canister, a second air flow line for connecting the first air flow line to the jet pump, and an air flow switching valve for switching communication between the first and second air flow lines. An inner pressure sensor is provided to the fuel tank for detecting an inner pressure of the fuel tank.
摘要翻译： 泄漏检测系统检测燃料箱的燃料气体泄漏。 检测系统包括设置在燃料箱中的燃料泵，喷射泵和弯曲阀。 燃料流路系统包括连接到燃料泵的减压线，用于释放多余燃料的溢流管线，设置在溢流管线中的泄放流路切换阀以及用于连接切换阀和排气阀的副管路。 空气流路系统包括将排气阀连接到罐的第一空气流路线，用于将第一空气流线连接到喷射泵的第二空气流路，以及用于切换第一和第 第二条气流管线。 向燃料箱提供内部压力传感器，用于检测燃料箱的内部压力。
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公开(公告)号：US06843116B2
公开(公告)日：2005-01-18
申请号：US10396581
申请日：2003-03-26
CPC分类号： F02M37/106 , F02M37/22
摘要： A fuel pump module is liquid-tightly mounted in an opening of a vehicle fuel tank. The fuel pump module includes a residual fuel detector provided near the fuel tank. The residual fuel detector includes a diaphragm having a first diaphragm for receiving fuel pressure Pg by a head and atmospheric pressure Po, and a diaphragm portion for receiving atmospheric pressure Po and internal pressure Pi. The residual fuel detector detects the amount of fuel remaining in the fuel tank on the basis of these kinds of pressure Po, Pg and Pi. At the same time, the residual fuel detector detects the in-tank pressure Pt of the fuel tank on the basis of Po and Pi.
摘要翻译： 燃油泵模块液密地安装在车辆燃料箱的开口中。 燃料泵模块包括设置在燃料箱附近的残余燃料检测器。 剩余燃料检测器包括具有第一隔膜的隔膜，该第一隔膜用于通过头部和大气压Po接收燃料压力Pg，以及用于接收大气压力Po和内部压力Pi的隔膜部分。 剩余燃料检测器基于这些种类的压力Po，Pg和Pi检测燃料箱中残留的燃料量。 同时，残余燃料检测器基于Po和Pi检测燃料箱的罐内压力Pt。
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19.发明授权Pressure sensor having multiple O-ring sealants provided in series and a fuel tank provided therewith 失效压力传感器具有串联设置的多个O形环密封剂和设置在其上的燃料箱
公开(公告)号：US5375472A
公开(公告)日：1994-12-27
申请号：US59987
申请日：1993-05-12
申请人： Tateki Mitani , Susumu Nagano
发明人： Tateki Mitani , Susumu Nagano
CPC分类号： G01L19/0038
摘要： A pressure sensor comprising a passage for introducing a pressurized medium; a member surrounding the passage; first and second sealants disposed between the member and the passage for preventing the pressurized medium from leaking to the outside through a clearance between the member and the passage; and a pressure sensing element communicating with the passage; the first sealant being made of a first material which is difficult to be deformed by the pressurized medium; the second sealant being made of a second material having a sealing effect against temperature change; the first and second sealants being arranged in series between the passage and the member surrounding the passage.
摘要翻译： 一种压力传感器，包括用于引入加压介质的通道; 围绕通道的成员; 第一和第二密封剂设置在构件和通道之间，用于防止加压介质通过构件和通道之间的间隙泄漏到外部; 以及与所述通道连通的压力感测元件; 所述第一密封剂由难以被所述加压介质变形的第一材料制成; 所述第二密封剂由具有抵抗温度变化的密封效应的第二材料制成; 第一密封剂和第二密封剂串联布置在通道和围绕通道的构件之间。
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20.发明授权Fuel evaporation gas leakage detecting system and method of detecting fuel evaporation gas leakage 失效燃油蒸发气体泄漏检测系统及检测燃料蒸发气体泄漏的方法公开(公告)号：US07207209B2
公开(公告)日：2007-04-24
申请号：US10938559
申请日：2004-09-13
申请人： Tateki Mitani , Toshihide Kimisawa , Tsuyoshi Kato
发明人： Tateki Mitani , Toshihide Kimisawa , Tsuyoshi Kato
CPC分类号： F02M37/10 , F02M25/0818 , F02M37/025 , Y10T137/86075
摘要： A leak detecting system detects fuel gas leakage of a fuel tank. The detecting system includes a fuel pump, a jet pump, and a bent valve, which are disposed in the fuel tank. A fuel flow path system includes a relief line connected to the fuel pump for relieving an excess fuel, a relief flow path switching valve disposed in the relief line, and a sub-line for connecting the switching valve and the vent valve. An air flow path system includes a first air flow line to connect the vent valve to a canister, a second air flow line for connecting the first air flow line to the jet pump, and an air flow switching valve for switching communication between the first and second air flow lines. An inner pressure sensor is provided to the fuel tank for detecting an inner pressure of the fuel tank.
摘要翻译： 泄漏检测系统检测燃料箱的燃料气体泄漏。 检测系统包括设置在燃料箱中的燃料泵，喷射泵和弯曲阀。 燃料流路系统包括连接到燃料泵的减压线，用于释放多余燃料的溢流管线，设置在溢流管线中的泄放流路切换阀以及用于连接切换阀和排气阀的副管路。 空气流路系统包括将排气阀连接到罐的第一空气流路线，用于将第一空气流线连接到喷射泵的第二空气流路，以及用于切换第一和第 第二条气流管线。 向燃料箱提供内部压力传感器，用于检测燃料箱的内部压力。
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