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。

公开(公告)号：US07395707B2

公开(公告)日：2008-07-08

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：US20050268713A1

公开(公告)日：2005-12-08

申请号：US11187823

申请日：2005-07-25

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：US07104126B2

公开(公告)日：2006-09-12

申请号：US11187823

申请日：2005-07-25

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.

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：US20080250856A1

公开(公告)日：2008-10-16

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：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：US20090000372A1

公开(公告)日：2009-01-01

申请号：US11814308

申请日：2006-02-20

申请人： Masahiro Matsumoto ,  Hiroshi Nakano ,  Masamichi Yamada ,  Keiji Hanzawa ,  Izumi Watanabe ,  Keiichi Nakada ,  Yasuhiro Kanamaru

发明人： Masahiro Matsumoto ,  Hiroshi Nakano ,  Masamichi Yamada ,  Keiji Hanzawa ,  Izumi Watanabe ,  Keiichi Nakada ,  Yasuhiro Kanamaru

IPC分类号： G01F1/69

CPC分类号： G01F15/006 ,  G01F1/6845 ,  G01F1/692

摘要： Conventional thermal flow measurement devices lack consideration for automobiles in severe environments. A detection element of the thermal flow measurement device according to the present invention is structured by the provision of a planar substrate made of a material having good thermal conductivity, such as silicon or ceramic, with a thin-walled portion (diaphragm). On the surface of the thin-walled portion, the detection element comprises a heat element as a heater heated to a temperature being different to a predetermined extent from the temperature of the air flow to be measured, temperature-detecting resistors as temperature-detecting means on both sides of the heat element, wiring portions formed of electrical conductors that draw signal lines from the heat element and the temperature-detecting resistors and that have a melting point of 2000° C. or higher, and pads.

摘要翻译： 传统的热流测量装置在恶劣环境中缺乏汽车的考虑。 根据本发明的热流测量装置的检测元件通过提供由具有良好导热性的材料（例如硅或陶瓷）制成的具有薄壁部分（隔膜）的平面基板构成。 在薄壁部分的表面上，检测元件包括作为加热器的加热元件加热到与待测量的空气流的温度不同的温度，作为温度检测装置的温度检测电阻器 在加热元件的两侧，由从导热元件和温度检测电阻器吸引信号线并且具有2000℃或更高熔点的电导体形成的布线部分和焊盘。