公开(公告)号：US06854326B2

公开(公告)日：2005-02-15

申请号：US10674475

申请日：2003-10-01

申请人： Izumi Watanabe ,  Naoki Saito ,  Masayuki Kozawa ,  Keiichi Nakada ,  Kei Ueyama

发明人： Izumi Watanabe ,  Naoki Saito ,  Masayuki Kozawa ,  Keiichi Nakada ,  Kei Ueyama

IPC分类号： G01F1/684 ,  G01F5/00 ,  G01F1/68

CPC分类号： G01F1/684 ,  G01F1/6842 ,  G01F1/6845 ,  G01F5/00

摘要： Resin members, on the surfaces of which metal films are formed, are used for; an auxiliary air passage provided in a main air passage, in which a sensor element of a physical quantity sensor such as an air flow sensor, an intake-air temperature sensor, etc., is situated; a housing; and so forth; in order to decrease both the thermal conductivity and the emissivity of those components to respective small values, whereby the temperature increase of the sensor due to both the heat conduction and the heat radiation can be suppressed.

摘要翻译： 在其表面上形成金属膜的树脂构件用于： 辅助空气通道，其设置在主空气通道中，物理量传感器的传感器元件如空气流量传感器，进气温度传感器等位于其中; 房屋; 等等; 为了将这些部件的热导率和发射率都降低到相应的小值，由此可以抑制由于热传导和热辐射两者而导致的传感器的温度升高。

公开(公告)号：US06708560B2

公开(公告)日：2004-03-23

申请号：US09790689

申请日：2001-02-23

申请人： Izumi Watanabe ,  Naoki Saito ,  Masayuki Kozawa ,  Keiichi Nakada ,  Kei Ueyama

发明人： Izumi Watanabe ,  Naoki Saito ,  Masayuki Kozawa ,  Keiichi Nakada ,  Kei Ueyama

IPC分类号： G01F168

CPC分类号： G01F1/684 ,  G01F1/6842 ,  G01F1/6845 ,  G01F5/00

摘要： Resin members, on the surfaces of which metal films are formed, are used for; an auxiliary air passage provided in a main air passage, in which a sensor element of a physical quantity sensor such as an air flow sensor, an intake-air temperature sensor, etc., is situated; a housing; and so forth; in order to decrease both the thermal conductivity and the emissivity of those components to respective small values, whereby the temperature increase of the sensor due to both the heat conduction and the heat radiation can be suppressed.

摘要翻译： 在其表面上形成金属膜的树脂构件用于： 辅助空气通道，其设置在主空气通道中，物理量传感器的传感器元件如空气流量传感器，进气温度传感器等位于其中; 房屋; 等等; 为了将这些部件的热导率和发射率都降低到相应的小值，由此可以抑制由于热传导和热辐射两者而导致的传感器的温度升高。

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。

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.

公开(公告)号：US07650784B2

公开(公告)日：2010-01-26

申请号：US12139761

申请日：2008-06-16

申请人： Izumi Watanabe ,  Junichi Horie ,  Keiichi Nakada ,  Kei Ueyama ,  Masamichi Yamada

发明人： Izumi Watanabe ,  Junichi Horie ,  Keiichi Nakada ,  Kei Ueyama ,  Masamichi Yamada

IPC分类号： G01F1/68

CPC分类号： G01F1/6845 ,  G01F1/6842 ,  G01F1/692 ,  G01F1/698 ,  G01F1/699

摘要： A flow rate sensor has a problem that a resistance value of a heat generating resistor itself varies and sensor characteristics are changed during use of the sensor for a long term. Also, the temperature of the heat generating resistor must be adjusted on a circuit substrate with a resistance constituting one side of a fixed temperature difference control circuit, and this has been one of factors pushing up the production cost. All resistances used for fixed temperature difference control are formed on the same substrate as temperature sensitive resistors of the same material. This enables all the resistances for the fixed temperature difference control to be exposed to the same environmental conditions. Hence, even when the resistances change over time, the changes over time occur substantially at the same tendency. Since the resistances for the fixed temperature difference control change over time essentially at the same rate, a resulting output error is very small.

摘要翻译： 流量传感器具有长期使用传感器时发热电阻器本身的电阻值变化，传感器特性变化的问题。 此外，发热电阻器的温度必须在构成固定温度差控制电路的一侧的电阻的电路基板上进行调整，这是提高生产成本的因素之一。 用于固定温差控制的所有电阻都与相同材料的感温电阻器形成在同一基板上。 这使得固定温差控制的所有电阻能够暴露在相同的环境条件下。 因此，即使电阻随着时间的推移而变化，随着时间的推移发生大体上同样的变化。 由于固定温差控制的电阻基本上以相同的速率变化，所以产生的输出误差非常小。

公开(公告)号：US20070169548A1

公开(公告)日：2007-07-26

申请号：US11730716

申请日：2007-04-03

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.

公开(公告)号：US20060272403A1

公开(公告)日：2006-12-07

申请号：US11505987

申请日：2006-08-18

申请人： Izumi Watanabe ,  Junichi Horie ,  Keiichi Nakada ,  Kei Ueyama ,  Masamichi Yamada

发明人： Izumi Watanabe ,  Junichi Horie ,  Keiichi Nakada ,  Kei Ueyama ,  Masamichi Yamada

IPC分类号： G01F1/68

CPC分类号： G01F1/6845 ,  G01F1/6842 ,  G01F1/692 ,  G01F1/698 ,  G01F1/699

摘要： A flow rate sensor has a problem that a resistance value of a heat generating resistor itself varies and sensor characteristics are changed during use of the sensor for a long term. Also, the temperature of the heat generating resistor must be adjusted on a circuit substrate with a resistance constituting one side of a fixed temperature difference control circuit, and this has been one of factors pushing up the production cost. All resistances used for fixed temperature difference control are formed on the same substrate as temperature sensitive resistors of the same material. This enables all the resistances for the fixed temperature difference control to be exposed to the same environmental conditions. Hence, even when the resistances change over time, the changes over time occur substantially at the same tendency. Since the resistances for the fixed temperature difference control change over time essentially at the same rate, a resulting output error is very small.

摘要翻译： 流量传感器具有长期使用传感器时发热电阻器本身的电阻值变化，传感器特性变化的问题。 此外，发热电阻器的温度必须在构成固定温度差控制电路的一侧的电阻的电路基板上进行调整，这是提高生产成本的因素之一。 用于固定温差控制的所有电阻都与相同材料的感温电阻器形成在同一基板上。 这使得固定温差控制的所有电阻能够暴露在相同的环境条件下。 因此，即使电阻随着时间的推移而变化，随着时间的推移发生大体上同样的变化。 由于固定温差控制的电阻基本上以相同的速率变化，所以产生的输出误差非常小。

公开(公告)号：US07032446B2

公开(公告)日：2006-04-25

申请号：US10083403

申请日：2002-02-27

申请人： Keiichi Nakada ,  Izumi Watanabe ,  Junichi Horie ,  Kei Ueyama ,  Hiromu Kikawa ,  Masamichi Yamada

发明人： Keiichi Nakada ,  Izumi Watanabe ,  Junichi Horie ,  Kei Ueyama ,  Hiromu Kikawa ,  Masamichi Yamada

IPC分类号： G01F1/68

CPC分类号： G01F1/684 ,  G01F1/6842 ,  G01F5/00 ,  G01F15/12

摘要： There is provided a flow rate measuring device which comprises a means for introducing a backward flow of the main passage into the sub-passage through the outlet of the sub-passage of the flow rate measuring device is provided near the outlet of the sub-passage, in order to keep the flow rate measuring element from being destroyed under the presence of dust and water in an intake manifold and which has high reliability for a long period of use and an excellent pulsation characteristic.

摘要翻译： 提供了一种流量测量装置，其包括用于将主通道的逆流引导到通过流量测量装置的子通道的出口的子通道的装置，设置在子通道的出口附近 为了保持流量测量元件在进气歧管中存在灰尘和水的情况下被破坏，并且长时间使用具有高可靠性和优异的脉动特性。

公开(公告)号：US06925866B2

公开(公告)日：2005-08-09

申请号：US10449117

申请日：2003-06-02

申请人： Izumi Watanabe ,  Junichi Horie ,  Keiichi Nakada ,  Kei Ueyama ,  Masamichi Yamada

发明人： Izumi Watanabe ,  Junichi Horie ,  Keiichi Nakada ,  Kei Ueyama ,  Masamichi Yamada

IPC分类号： G01F1/684 ,  F02D35/00 ,  F02D41/18 ,  F02D45/00 ,  G01F1/692 ,  G01F1/698 ,  G01F1/699 ,  G01F1/68

CPC分类号： G01F1/6845 ,  G01F1/6842 ,  G01F1/692 ,  G01F1/698 ,  G01F1/699

摘要： A flow rate sensor has a problem that a resistance value of a heat generating resistor itself varies and sensor characteristics are changed during use of the sensor for a long term. Also the temperature of the heat generating resistor must be adjusted on a circuit substrate with a resistance constituting one side of a fixed temperature difference control circuit, and this has been one of factors pushing up the production cost. All resistances used for fixed temperature difference control are formed on the same substrate as temperature sensitive resistors of the same material. This enables all the resistances for the fixed temperature difference control to be exposed to the same environmental conditions. Hence, even when the resistances change over time, the changes over time occur substantially at the same tendency. Since the resistances for the fixed temperature difference control change over time essentially at the same rate, a resulting output error is very small.

摘要翻译： 流量传感器具有长期使用传感器时发热电阻器本身的电阻值变化，传感器特性变化的问题。 此外，发热电阻器的温度必须在构成固定温度差控制电路的一侧的电阻的电路基板上进行调整，这是提高生产成本的因素之一。 用于固定温差控制的所有电阻都与相同材料的感温电阻器形成在同一基板上。 这使得固定温差控制的所有电阻能够暴露在相同的环境条件下。 因此，即使电阻随着时间的推移而变化，随着时间的推移发生大体上同样的变化。 由于固定温差控制的电阻基本上以相同的速率变化，所以产生的输出误差非常小。

公开(公告)号：US06694810B2

公开(公告)日：2004-02-24

申请号：US10201896

申请日：2002-07-25

申请人： Kei Ueyama ,  Izumi Watanabe ,  Keiichi Nakada ,  Junichi Horie

发明人： Kei Ueyama ,  Izumi Watanabe ,  Keiichi Nakada ,  Junichi Horie

IPC分类号： G01F1684

CPC分类号： G01F1/688 ,  G01F1/684

摘要： A support member where a flow amount detection element, which includes a heating resistor and electronic circuit parts for obtaining the air flow amount according to the flow amount signal detected by flow amount detection element are mounted, is cooled from both the direction of the main flow of main passage and the direction of an anti-main flow (i.e., the direction opposite to the direction of the main flow).

摘要翻译： 安装流量检测元件的支撑构件，其中安装有流量检测元件，其包括加热电阻器和用于根据由流量检测元件检测的流量信号获得空气流量的电子电路部件，从主流动方向 的主通道和反主流的方向（即与主流动方向相反的方向）。