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    • 2. 发明授权
    • Thermal type air flow measuring instrument for internal combustion engine
    • 内燃机热式气流测量仪
    • US06189379B1
    • 2001-02-20
    • US09362190
    • 1999-07-28
    • Shinya IgarashiChihiro KobayashiHiroshi HirayamaTakayuki SaitoNobukatsu Arai
    • Shinya IgarashiChihiro KobayashiHiroshi HirayamaTakayuki SaitoNobukatsu Arai
    • G01F500
    • G01F1/684G01F1/6842G01F5/00
    • A thermal type air flow measuring instrument is mounted to a main passage forming an intake air passage of an internal combustion engine and is provided. with an auxiliary passage which includes a heating resistor and a temperature sensing resistor therein and an electronic circuit which is electrically connected to the heating resistor and the temperature sensing resistor. The auxiliary passage is a passage including at least one bent portion composed of a first path substantially parallel to the main passage and a second path having a path different in flow direction from the first path. A member forming the auxiliary passage is fixed in a united form to only a case member for interiorly protecting the electronic circuit, and the case member is fixed to the outer wall surface of the intake air passage. The auxiliary passage structure capable of being handled as a single module united to the case member is effective to the mass production of an air flow control system and the reduction in cost thereof since the structure can be mounted to different kinds of internal combustion engines.
    • 一种热式气流测量仪安装在形成内燃机进气通道的主通道上。 具有在其中包括加热电阻器和温度感测电阻器的辅助通道和电连接到加热电阻器和温度感测电阻器的电子电路。 辅助通道是包括由基本上平行于主通道的第一路径组成的至少一个弯曲部分和具有与第一路径不同的流动方向的路径的通道。 形成辅助通道的部件被联合地固定到仅用于内部保护电子电路的壳体部件,并且壳体部件固定到进气通道的外壁表面。 能够作为与壳体构件联合的单个模块来处理的辅助通道结构对于大量生产空气流量控制系统和降低成本是有效的,因为该结构可以安装到不同种类的内燃机上。
    • 3. 发明授权
    • Thermal type air flow measuring instrument for internal combustion engine
    • 内燃机热式气流测量仪
    • US5939628A
    • 1999-08-17
    • US112144
    • 1998-07-09
    • Shinya IgarashiChihiro KobayashiHiroshi HirayamaTakayuki SaitoNobukatsu Arai
    • Shinya IgarashiChihiro KobayashiHiroshi HirayamaTakayuki SaitoNobukatsu Arai
    • G01F1/684G01F5/00
    • G01F1/684G01F1/6842G01F5/00
    • A thermal type air flow measuring instrument is mounted to a main passage forming an intake air passage of an internal combustion engine and is provided with an auxiliary passage which includes a heating resistor and a temperature sensing resistor therein and an electronic circuit which is electrically connected to the heating resistor and the temperature sensing resistor. The auxiliary passage is a passage including at least one bent portion composed of a first path substantially parallel to the main passage and a second path having a path different in flow direction from the first path. A member forming the auxiliary passage is fixed in a united form to only a case member for interiorly protecting the electronic circuit, and the case member is fixed to the outer wall surface of the intake air passage. The auxiliary passage structure capable of being handled as a single module united to the case member is effective to the mass production of an air flow control system and the reduction in cost thereof since the structure can be mounted to different kinds of internal combustion engines.
    • 一种热式气流测量仪安装在形成内燃机进气通道的主通道上,并在其中设有一个辅助通道,该通道包括一个加热电阻器和一个温度感测电阻器,以及一个电连接到 加热电阻和温度检测电阻。 辅助通道是包括由基本上平行于主通道的第一路径组成的至少一个弯曲部分和具有与第一路径不同的流动方向的路径的通道。 形成辅助通道的部件被联合地固定到仅用于内部保护电子电路的壳体部件,并且壳体部件固定到进气通道的外壁表面。 能够作为与壳体构件联合的单个模块来处理的辅助通道结构对于大量生产空气流量控制系统和降低成本是有效的,因为该结构可以安装到不同种类的内燃机上。
    • 4. 发明授权
    • Air flow rate measuring device
    • 空气流量测量装置
    • US5631415A
    • 1997-05-20
    • US514851
    • 1995-08-14
    • Shinya IgarashiHiroshi HirayamaChihiro KobayashiMitsukuni TsutsuiYukio Kato
    • Shinya IgarashiHiroshi HirayamaChihiro KobayashiMitsukuni TsutsuiYukio Kato
    • F02D45/00G01F1/68G01F1/684G01F5/00
    • G01F5/00G01F1/6842
    • An air flow rate measuring device for measuring intake air flow rate in an automotive engine, improved to reduce any error attributable to variation in the configurations of air cleaner and/or duct forming air passage upstream of the flow rate measuring device, thus offering high accuracy of the flow rate measurement. In one aspect of the invention, the inlet opening of a sub-air passage is disposed to contain the axis of a main air passage, while the outlet opening of the sub-air passage is disposed in the vicinity of a wall defining the main air passage. In order to cause a local reduction of the pressure of the principal of the air flow at the outlet opening, a protrusion or a flat surface which causes impediment to the flow if air in the main air passage is provided immediately upstream of the outlet opening. In another aspect, the inlet surface in which the inlet of the sub-air passage opens is stepped in the direction of flow of the air so as to enable air to be introduced into air flow rate measuring portion in the sub-air passage from different regions in the main air passage while giving a preselected order of preference to these different regions.
    • 一种用于测量汽车发动机中的进气流量的空气流量测量装置,其改进以减少由于流量测量装置上游空气滤清器和/或导管形成空气通道的结构变化引起的任何误差,从而提供高精度 的流量测量。 在本发明的一个方面,副空气通道的入口设置成容纳主空气通道的轴线,而副空气通道的出口设置在限定主空气的壁的附近 通道。 为了使出口开口处的空气流的本征压力局部地减小,突起或平坦表面在紧邻导出口的上游处设置有主空气通道中的空气,从而阻碍流动。 另一方面,副空气通路的入口打开的入口表面沿着空气的流动方向是阶梯式的,从而能够使空气从不同的空气通道引入到副空气通道中的空气流量测量部分 主空气通道中的区域,同时给予这些不同区域的预选顺序。
    • 5. 发明授权
    • Air flow rate measuring device
    • 空气流量测量装置
    • US5467648A
    • 1995-11-21
    • US120542
    • 1993-09-14
    • Shinya IgarashiHiroshi HirayamaChihiro KobayashiMitsukuni TsutsuiYukio Kato
    • Shinya IgarashiHiroshi HirayamaChihiro KobayashiMitsukuni TsutsuiYukio Kato
    • F02D45/00G01F1/68G01F1/684G01F5/00
    • G01F5/00G01F1/6842
    • An air flow rate measuring device for measuring intake air flow rate in an automotive engine, improved to reduce any error attributable to variation in the configurations of air cleaner and/or duct forming air passage upstream of the flow rate measuring device, thus offering high accuracy of the flow rate measurement. In one aspect of the invention, the inlet opening of a sub-air passage is disposed to contain the axis of a main air passage, while the outlet opening of the sub-air passage is disposed in the vicinity of a wall defining the main air passage. In order to cause a local reduction of the pressure of the principal of the air flow at the outlet opening, a protrusion or a flat surface which causes impediment to the flow if air in the main air passage is provided immediately upstream of the outlet opening. In another aspect, the inlet surface in which the inlet of the sub-air passage opens is stepped in the direction of flow of the air so as to enable air to be introduced into air flow rate measuring portion in the sub-air passage from different regions in the main air passage while giving a preselected order of preference to these different regions.
    • 一种用于测量汽车发动机中的进气流量的空气流量测量装置,其改进以减少由于流量测量装置上游空气滤清器和/或导管形成空气通道的结构变化引起的任何误差,从而提供高精度 的流量测量。 在本发明的一个方面,副空气通道的入口设置成容纳主空气通道的轴线,而副空气通道的出口设置在限定主空气的壁的附近 通道。 为了使出口开口处的空气流的本征压力局部地减小,突起或平坦表面在紧邻导出口的上游处设置有主空气通道中的空气,从而阻碍流动。 另一方面,副空气通路的入口打开的入口面沿着空气的流动方向阶梯状,以使得空气能够从不同的空气通道引入到副空气通道中的空气流量测量部分 主空气通道中的区域,同时给予这些不同区域的预选顺序。