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1. 发明授权

US06349596B1 Thermal type air flow sensor 失效
标题翻译：热式气流传感器
公开(公告)号：US06349596B1
公开(公告)日：2002-02-26
申请号：US09461190
申请日：1999-12-15
申请人： Keiichi Nakada , Izumi Watanabe , Hiroshi Yoneda
发明人： Keiichi Nakada , Izumi Watanabe , Hiroshi Yoneda
IPC分类号： G01F168
CPC分类号： G01F1/6845 , G01F1/692 , G01F1/696 , G01F15/043
摘要： A thermal type air flow sensor which corrects variation of characteristics of a thermal type air flow sensor due to adherence or deposition of fouling contained in an intake air for maintaining an initial accuracy. An air flow rate is measured by means of a heating resistor and a temperature measuring resistor formed by semiconductor fine patterning. A part of the semiconductor substrate is removed. The heating resistor and a portion of the temperature measuring resistor are formed above a space defined by removing the semiconductor substrate. A voltage of the portion of the temperature measuring resistor located above the space is detected for correcting an error in measurement of an intake air using the voltage detected.
摘要翻译：一种热式空气流量传感器，其用于校正由于包含在进气中的污垢的粘附或沉积导致的热式空气流量传感器的特性的变化，以保持初始精度。通过加热电阻器和通过半导体精细图案化形成的温度测量电阻器来测量空气流量。去除半导体衬底的一部分。加热电阻器和温度测量电阻器的一部分形成在通过去除半导体衬底限定的空间的上方。检测位于空间上方的温度测量电阻器的部分的电压，以使用检测到的电压来校正进气测量误差。

2. 发明授权

US06516785B1 Air flow sensor 有权
标题翻译：气流传感器
公开(公告)号：US06516785B1
公开(公告)日：2003-02-11
申请号：US09763967
申请日：2001-02-28
申请人： Keiichi Nakada , Izumi Watanabe , Hiroshi Yoneda , Kei Ueyama , Masamichi Yamada
发明人： Keiichi Nakada , Izumi Watanabe , Hiroshi Yoneda , Kei Ueyama , Masamichi Yamada
IPC分类号： G01F1692
CPC分类号： G01F1/684 , F02D41/187 , G01F1/6842 , G01F1/6845 , G01F1/692 , G01F1/698 , G01F5/00 , H01L2224/48091 , H01L2224/8592 , H01L2924/19105 , H01L2924/00014
摘要： In a thermal air flow sensor, an air flow measuring element and an intake air temperature sensing element of an intake air temperature sensor are mounted on a single support member so as to be positioned within an intake passage. The support member is made of a glass-ceramic material for example and is held by a holder secured to the wall of an intake pipe. The support member has a structure whereby both sides of a portion of the support member located on the side away from the intake pipe wall are easy to be taken away their heat by an air flow moving through the intake pipe. The air flow measuring element and the intake air temperature sensing element are disposed on such a heat-removed surface of the support member and are electrically connected respectively to conductors disposed on the support member, with their electric connections being sealed with resin, whereby the intake air temperature sensor and the air flow sensor can be rendered integral with each other.
摘要翻译：在热空气流量传感器中，进气温度传感器的气流测量元件和进气温度感测元件安装在单个支撑构件上，以便定位在进气通道内。支撑构件例如由玻璃陶瓷材料制成，并由固定在进气管壁上的保持架保持。支撑构件具有这样的结构，其中位于远离进气管壁的一侧的支撑构件的一部分的两侧容易被移动通过进气管的气流带走其热量。气流测量元件和进气温度感测元件设置在支撑构件的这种除热表面上，并且分别电连接到设置在支撑构件上的导体，其电连接用树脂密封，由此进气空气温度传感器和空气流量传感器可以彼此成为一体。

3. 发明授权

US07631555B2 Thermal flowmeter for measuring a flow rate of fluid 有权
标题翻译：用于测量流体流量的热流量计
公开(公告)号：US07631555B2
公开(公告)日：2009-12-15
申请号：US10580112
申请日：2003-11-20
申请人： Hiroshi Nakano , Masamichi Yamada , Masahiro Matsumoto , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
发明人： Hiroshi Nakano , Masamichi Yamada , Masahiro Matsumoto , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
IPC分类号： G01F1/68
CPC分类号： G01F1/6965 , G01F1/6845
摘要： A thermal air flowmeter having excellent temperature characteristics and improved measurement accuracy. The thermal air flowmeter includes a temperature sensor disposed in a casing of the air flowmeter, a computing unit for correcting a flow rate detection voltage from a measuring element by using the temperature sensor, and a heating temperature control disposed in a temperature control circuit for performing temperature control of a heating resistor to vary a temperature rise of the heating resistor relative to an air temperature depending on the air temperature. Flow rate detection errors of the thermal air flowmeter caused by an overall temperature change and a temperature change on an intake passage wall surface can be corrected simultaneously and a thermal air flowmeter having superior measurement accuracy can be realized.
摘要翻译：具有优异的温度特性和改进的测量精度的热空气流量计。热空气流量计包括设置在空气流量计的壳体中的温度传感器，用于使用温度传感器校正来自测量元件的流量检测电压的计算单元，以及设置在温度控制电路中的加热温度控制，用于执行加热电阻器的温度控制以根据空气温度改变加热电阻器相对于空气温度的温度升高。可以同时校正由总体温度变化和进气通道壁面上的温度变化引起的热空气流量计的流量检测误差，并且可以实现具有优异的测量精度的热空气流量计。

4. 发明授权

US07559237B2 Air flow measuring device provided with a vent in air passage 有权
标题翻译：气流测量装置在空气通道中设有通风口
公开(公告)号：US07559237B2
公开(公告)日：2009-07-14
申请号：US12149242
申请日：2008-04-29
申请人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
发明人： Hiromu Kikawa , Izumi Watanabe , Shinya Igarashi , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element located in the sub-passage at a position at least further downstream from the point.
摘要翻译：本发明提供了一种空气流量测量装置，其包括具有子通道的壳体，该子通道具有形成在壳体中的气流的入口和出口，该子通道还具有具有最大下游点的预定曲率和流量测量元件位于至少在该点下游的位置处的子通道中。

5. 发明申请

US20070024119A1 Thermal type flow measuring apparatus 有权
标题翻译：热式流量测量仪
公开(公告)号：US20070024119A1
公开(公告)日：2007-02-01
申请号：US11480979
申请日：2006-07-06
申请人： Izumi Watanabe , Junichi Horie , Keiichi Nakada
发明人： Izumi Watanabe , Junichi Horie , Keiichi Nakada
IPC分类号： B60L1/00
CPC分类号： G01F1/692 , G01F1/6845 , G01F1/698
摘要： A thermal type flow measuring apparatus includes a heating resistor provided in a thin part of a substrate and a bridge circuit for driving the heating resistor to have a preset heating temperature, wherein resistor elements on sides forming the bridge circuit are temperature sensitive resistors, a part or whole of at least one of the temperature sensitive resistors is placed in the thin part and near the heating resistor so that the temperature sensitive resistor is influenced by a heat of the heating resistor, and the preset heating temperature is increased as the flow of fluid is increased. This configuration introduces flow dependency into the heating temperature of the heating resistor.
摘要翻译：一种热式流量测量装置包括设置在基板的薄部分中的加热电阻器和用于驱动加热电阻器以具有预设加热温度的桥接电路，其中形成桥接电路的侧面上的电阻器元件是温度敏感电阻器，或整个温度敏感电阻器中的至少一个放置在薄部分和靠近加热电阻器处，使得温度敏感电阻器受到加热电阻器的热量的影响，并且预设加热温度随着流体流动而增加增加了。该配置将流依赖性引入加热电阻器的加热温度。

6. 发明申请

US20060144138A1 Thermal flow sensor 有权
标题翻译：热流量传感器
公开(公告)号：US20060144138A1
公开(公告)日：2006-07-06
申请号：US10546174
申请日：2004-05-26
申请人： Masamichi Yamada , Izumi Watanabe , Keiichi Nakada , Junichi Horie
发明人： Masamichi Yamada , Izumi Watanabe , Keiichi Nakada , Junichi Horie
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/698
摘要： A thermal flow sensor which is fabricated at a low cost and has improved reliability. Over a cavity (7) formed in a semiconductor substrate (2), at least a heating resistance (4) is formed near the center of the cavity with an electrical insulation film interposed between the heating resistance and the cavity. The temperature (Th) of the heating resistance (4) is controlled to be higher than the medium temperature (Ta) by a constant temperature ({Th=Th−Ta). A distance (Ws) in the direction of airflow from an upstream end of the heating resistance (4) to an upstream end of the electrical insulation film lying over the cavity and the constant temperature (ΔTh) satisfy the following relationship: ΔTh/Ws≦800 (° C./mm) Thus, a thermal flow sensor is provided which can prevent deposition of floating fine particles, such as carbon particles, caused by the thermophoretic effect, can be fabricated at a low cost, and has high reliability.
摘要翻译：一种以低成本制造并具有改进的可靠性的热流传感器。在形成在半导体衬底（2）中的空腔（7）上，在腔的中心附近形成至少一个加热电阻（4），其中电绝缘膜置于加热电阻和空腔之间。加热电阻（4）的温度（Th）通过恒温（{Th = Th-Ta））控制为高于介质温度（Ta）。从加热电阻（4）的上游端到位于空腔上的电绝缘膜的上游端和恒温（DeltaTh）的气流方向的距离（Ws）满足以下关系： line-formula description =“In-line Formulas”end =“lead”？> DeltaTh / Ws <= 800（°C / mm）<？in-line-formula description =“In-line Formulas”end =“tail 因此，提供了能够防止由热诱导效应引起的诸如碳颗粒的漂浮微粒的沉积的热流量传感器，可以以低成本制造，并且具有高可靠性。

7. 发明申请

US20060065049A1 Fluid flow sensor and fluid flow measurement device 有权
标题翻译：流体流量传感器和流体流量测量装置
公开(公告)号：US20060065049A1
公开(公告)日：2006-03-30
申请号：US11206820
申请日：2005-08-19
申请人： Keiichi Nakada , Junichi Horie , Hiroshi Nakano , Izumi Watanabe
发明人： Keiichi Nakada , Junichi Horie , Hiroshi Nakano , Izumi Watanabe
IPC分类号： G01F1/68
CPC分类号： G01F1/699 , G01F1/6842 , G01F1/692
摘要： A Thermal type fluid flow sensor comprises a heating resistor formed on a thin film of a substrate, and plural thermal sensitive resistors configuring a bridge circuit. The thermal sensitive resistors are disposed on the thin film of the substrate so as to be located on an adjacent upstream side and an adjacent downstream side of the heating resistor in a stream direction of fluid to be measured. Resistor traces for the thermal sensitive resistors are formed so that the respective thermal sensitive resistors exhibit substantially equal changes in resistance with each other to distortion caused in the thin film.
摘要翻译：热式流体流量传感器包括形成在基板的薄膜上的加热电阻器和构成桥接电路的多个热敏电阻器。热敏电阻器设置在基板的薄膜上，以便沿着待测流体的流动方向位于加热电阻器的相邻上游侧和相邻的下游侧。形成用于热敏电阻器的电阻迹线，使得相应的热敏电阻器在薄膜中产生的失真相对于电阻变化相当大。

8. 发明授权

US06860149B2 Mass airflow measuring apparatus 有权
标题翻译：大气流量测仪
公开(公告)号：US06860149B2
公开(公告)日：2005-03-01
申请号：US10652029
申请日：2003-09-02
申请人： Shinya Igarashi , Atsushi Kanke , Rintarou Minamitani , Keiichi Nakada , Izumi Watanabe
发明人： Shinya Igarashi , Atsushi Kanke , Rintarou Minamitani , Keiichi Nakada , Izumi Watanabe
IPC分类号： G01F1/68 , F02D35/00 , F02D41/04 , F02D45/00 , G01F1/696 , G01F1/698
CPC分类号： G01F1/6983 , F02D41/042
摘要： To offer a mass airflow measuring apparatus in which the effect of the adhesion onto the heating resistor caused while the engine is off is reduced and the measuring accuracy is improved. The apparatus measures the mass airflow of the air sucked into the internal combustion engine, using the heating resistor 1. The power control circuit 4 maintains the heating resistor 1 temperature equal to or higher than the temperature during the operation of the internal combustion engine after the internal combustion engine has stopped and until the temperature of the internal combustion engine and its apparatuses installed in the suction system has lowered below the generation temperature of volatile gas such as oil vapor. The power control circuit 4, using the temperature sensing resistor 2 that detects the temperature of the air sucked into the combustion engine, detects the air temperature and maintains the heating resistor 1 temperature, based on the temperature measured, equal to or higher than the temperature during the operation of the internal combustion engine even after the internal combustion engine has stopped.
摘要翻译：提供一种质量气流测量装置，其中在发动机关闭时引起在加热电阻器上的附着力的影响减小，并且提高了测量精度。该装置使用加热电阻器1测量吸入内燃机的空气的质量气流。功率控制电路4将发热电阻体1的温度保持在等于或高于内燃机运转后的温度内燃机已经停止，并且直到安装在抽吸系统中的内燃机及其装置的温度降低到低于诸如油蒸气的挥发性气体的发生温度。功率控制电路4使用检测吸入到内燃机中的空气的温度的温度检测电阻器2，根据测得的温度检测空气温度并维持加热电阻器1的温度等于或高于温度即使在内燃机停止之后，内燃机的运转也是如此。

9. 发明授权

US06752014B1 Hot-wire type air flow meter for internal combustion engine 有权
标题翻译：内燃机热丝式空气流量计
公开(公告)号：US06752014B1
公开(公告)日：2004-06-22
申请号：US09653168
申请日：2000-09-01
申请人： Atsushi Kanke , Masamichi Yamada , Keiichi Nakada , Izumi Watanabe , Hisao Sonobe
发明人： Atsushi Kanke , Masamichi Yamada , Keiichi Nakada , Izumi Watanabe , Hisao Sonobe
IPC分类号： G01F168
CPC分类号： G01F1/698 , G01F1/6845 , G01F1/696
摘要： A hot-wire type air flow meter for an internal combustion engine has an exothermic resistor film provided on a thin portion formed on a silicon substrate and a control circuit for controlling a voltage to be applied to the resistor film or a current to be supplied. The resistor film is arranged in a suction pipe of the internal combustion engine and heat is emitted to an air through the resistor film. In the case where a liquid droplet is deposited onto the resistor film, the control circuit controls the applied voltage to a value smaller than a voltage which is applied to the resistor film at the time of measuring a maximum specified measuring range or controls the supply current to a value smaller than a current flowing in the resistor film at the time of measuring the maximum specified measuring range.
摘要翻译：用于内燃机的热线式空气流量计具有设置在形成在硅基板上的薄部分上的放热电阻膜和用于控制施加到电阻膜的电压或要供应的电流的控制电路。电阻膜布置在内燃机的吸入管中，并且通过电阻膜将热量排放到空气中。在液滴沉积到电阻膜上的情况下，控制电路将施加的电压控制为比测量最大规定测量范围时施加到电阻膜的电压小的值，或者控制电源电流达到在测量最大规定测量范围时小于在电阻膜中流动的电流的值。

10. 发明授权

US06571621B2 Thermal flow rate measuring device 有权
公开(公告)号：US06571621B2
公开(公告)日：2003-06-03
申请号：US09951967
申请日：2001-09-14
申请人： Izumi Watanabe , Junichi Horie , Keiichi Nakada , Kei Ueyama
发明人： Izumi Watanabe , Junichi Horie , Keiichi Nakada , Kei Ueyama
IPC分类号： G01F500
CPC分类号： G01F5/00 , G01F1/6842 , G01F15/12
摘要： A thermal type flow rate measuring device can certainly prevent adhesion of water droplet onto a sensor element and thus achieve high reliability. The thermal type flow rate measuring device includes an auxiliary passage defined within a main passage for introducing a part of fluid flowing through the main passage, a sensor disposed within the auxiliary passage for detecting flow rate of the fluid and capturing means formed on an inner periphery of the auxiliary passage for capturing liquid contained in the fluid and transferring the captured liquid.

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