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81.发明授权公开(公告)号：US07370518B2
公开(公告)日：2008-05-13
申请号：US10562824
申请日：2004-09-22
申请人： Takeshi Morino , Chihiro Kobayashi , Shinya Igarashi , Kiichi Otaka , Yasuji Nishi , Yasunobu Kojima
发明人： Takeshi Morino , Chihiro Kobayashi , Shinya Igarashi , Kiichi Otaka , Yasuji Nishi , Yasunobu Kojima
IPC分类号： G01M15/00
CPC分类号： G01F15/12 , B08B5/00 , F02D41/0002 , F02D41/062 , F02D41/187 , G01F1/68 , G01F1/6983
摘要： To realize a control apparatus for an internal combustion engine having a heating resistor type air flow rate measuring apparatus which can effectively remove salinity adhered to the heating resistor. Salt adheres not only to the heating portion of a heating resistor but also to lead members and supporting members. When a certain time period is passed after the current supply to the heating resistor is stopped, the salt adhered thereto absorbs moisture in the air by deliquescence, and becomes salt water near the heating resistor and the support members etc. Then, suction air flows through an auxiliary air passage by the cranking of the engine to disperse the salt water adhered not only to the support member parts but also to the heating resistor. Thus, even if the heating resistor is supplied with current after the dissipation, salt components do not remain on the heating resistor.
摘要翻译： 实现具有加热电阻式空气流量测量装置的内燃机的控制装置，其能够有效地去除附着在加热电阻器上的盐度。 盐不仅粘附到加热电阻器的加热部分，而且粘附到引线构件和支撑构件。 当在加热电阻器的电流供给停止之后经过一段时间后，附着的盐通过潮解吸收空气中的水分，成为加热电阻体和支撑体等附近的盐水。然后，吸入空气流过 通过发动机起动的辅助空气通道来分散不仅附着在支撑构件部分上的盐水，而且还附着在加热电阻器上。 因此，即使在散热后向发热电阻器供电，盐分也不会保留在发热电阻上。
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公开(公告)号：US20070256493A1
公开(公告)日：2007-11-08
申请号：US11743979
申请日：2007-05-03
IPC分类号： G01F1/68
CPC分类号： G01F1/72 , G01F1/6842 , G01F5/00
摘要： In a thermal type flow rate measurement apparatus comprising a sub-passage having a detour passage and a hole just before a flow rate measuring part, for preventing its output value from falling onto a negative side when the flow rate is abruptly changed, a slit is formed downstream of a flow rate detecting element located after the detour passage. The slit hole may be arranged between the flow rate detecting element and the outlet port part, and may be opened between a wall surface side and a recess part. Thereby, it is possible to prevent the output value from falling in the negative side upon rise-up thereof.
摘要翻译： 在热式流量测量装置中，包括具有迂回通道和恰好在流量测量部分之前的孔的子通道，当流量急剧变化时，为防止其输出值落在负侧， 形成在位于绕行通道之后的流量检测元件的下游。 狭缝孔可以布置在流量检测元件和出口部之间，并且可以在壁表面侧和凹部之间打开。 由此，能够防止在上升时负极侧的输出值下降。
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83.发明授权公开(公告)号：US07281423B2
公开(公告)日：2007-10-16
申请号：US10806291
申请日：2004-03-23
IPC分类号： G01F1/68
CPC分类号： F02M35/021 , F02D41/187 , F02D41/2474 , F02D2041/283 , F02D2200/0414 , G01F1/684 , G01F1/6842 , G01F1/6965 , G01F1/699
摘要： The output characteristics of the sensing device or the control quantity of the sensing element can be adjusted by extracting an adjusting terminal in addition to a power source terminal, a ground terminal, an output terminal and the like outside a housing containing and protecting an electronic circuit. Further, by arranging the adjusting terminal inside a connector housing containing terminals such as the power source terminal, the ground terminal, the output terminal and the like, it is possible to prevent contact of foreign objects to the adjusting terminal and to water-proof the terminals for preventing corrosion since an associated connector is attached to the connector when the sensing device is actually used.
摘要翻译： 感测装置的输出特性或感测元件的控制量可以通过在包含和保护电子电路的外壳之外的电源端子，接地端子，输出端子等之外提取调节端子来调节 。 此外，通过将调整端子配置在包含电源端子，接地端子，输出端子等端子的连接器壳体的内部，可以防止异物与调整端子接触并防水 用于防止腐蚀的端子，因为当实际使用感测装置时，将相关连接器连接到连接器。
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公开(公告)号：US06782744B1
公开(公告)日：2004-08-31
申请号：US09767687
申请日：2001-01-24
IPC分类号： G01F168
CPC分类号： F02D41/3005 , F02D41/187 , F02D2400/18 , G01F1/6842
摘要： A power transistor 1 is mounted on a metallic power supply terminal 40 within an intake pipe 20, individually and separately from an electronic circuit board 7 on which other electronic circuit element are mounted. This power supply terminal 40 acts as a terminal for electric power input and its one portion is exposed within the gas path of the intake pipe 20. The heat-generation of the power transistor 1 is effectively heat-generated by the metallic terminal 40 without giving a remarkable effect to the other circuit elements. With this, it is possible to reduce any heat effect to the other electronic circuit components due to the self heat-generation of the power transistor 1 without the additional number of parts and to effectuate the gas flow rate measuring apparatus of which measuring accuracy and reliability are high.
摘要翻译： 功率晶体管1分别独立于安装有其他电子电路元件的电子电路板7安装在进气管20内的金属电源端子40上。 该电源端子40用作电力输入端子，其一部分在进气管20的气体通道内露出。功率晶体管1的发热由金属端子40有效地发热而不给出 对其他电路元件的显着效果。 由此，由于功率晶体管1的自发热而没有附加数量的部件，可以减少对其他电子电路部件的热效应，并且能够实现测量精度和可靠性的气体流量测量装置 很高
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公开(公告)号：US06672153B2
公开(公告)日：2004-01-06
申请号：US10157984
申请日：2002-05-31
IPC分类号： G01F168
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.
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86.发明授权公开(公告)号：US06230559B1
公开(公告)日：2001-05-15
申请号：US09111767
申请日：1998-07-08
申请人： Shinya Igarashi , Yasuo Makie , Kenji Ohta , Atsushi Kanke , Takashi Kadohiro , Chihiro Kobayashi
发明人： Shinya Igarashi , Yasuo Makie , Kenji Ohta , Atsushi Kanke , Takashi Kadohiro , Chihiro Kobayashi
IPC分类号： G01F168
CPC分类号： F02D41/187 , F02D2200/0414 , G01F1/6842 , G01F1/698
摘要： In flow detection by a thermal-type flow measuring instrument, a flow rate valve with reduced measurement error due to temperature variation can be obtained even under environment where a fluid temperature and a circuit temperature are different. A measurement error due to temperature variation of the fluid of the thermal-type flow measuring instrument can be corrected on the basis of a temperature of the fluid by adjusting the measurement error to be constant ratio irrespective of the flow rate. On the other hand, a temperature characteristic of the circuit is adjusted to be substantially zero %.
摘要翻译： 在通过热式流量测量装置的流量检测中，即使在流体温度和回路温度不同的环境下也可以获得由于温度变化而导致的测量误差降低的流量阀。 可以根据流体的温度校正热量型流量计的流体的温度变化所引起的测量误差，而不管流量如何，通过将测量误差调整为恒定比例。 另一方面，电路的温度特性被调整为基本上为零％。
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公开(公告)号：US6101869A
公开(公告)日：2000-08-15
申请号：US721040
申请日：1996-09-26
CPC分类号： F02M35/021 , F02M69/48 , G01F1/6842
摘要： An air flow rate measuring device for an internal combustion engine is disclosed. The air flow rate measuring device has a casing provided downstream from an air cleaner element for purifying intake air to the internal combustion engine, a duct connected fluidly to and downstream from the casing, and an air flow meter provided in said duct, for measuring an air flow rate taken into the internal combustion engine. A cross-sectional area of a connection portion between the casing and the duct, taken perpendicularly to the direction of air flow is the minimum cross-sectional area in the duct.
摘要翻译： 公开了一种用于内燃机的空气流量测量装置。 空气流量测量装置具有设置在空气净化器元件的下游的用于净化内燃机的进气的壳体，流体地连接到壳体的下游的管道和设置在所述管道中的空气流量计，用于测量 进入内燃机的空气流量。 壳体和管道之间的连接部分的垂直于空气流动方向截取的横截面面积是管道中的最小横截面面积。
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公开(公告)号：US5780735A
公开(公告)日：1998-07-14
申请号：US602163
申请日：1996-02-15
CPC分类号： G01F1/68
摘要： Disclosed is an air flow rate measurement apparatus comprising a heating resistor and a temperature sensing resistor for detecting an intake-air flow rate to be sucked into an internal combustion engine, and a circuit module for outputting an electric signal corresponding to said intake air flow rate, said module being electrically connected to said heating resistor and said temperature sensing resistor. The apparatus is featured in that said heating resistor and said temperature sensing resistor are inserted together with an element for measuring an intake air temperature through an opening formed in the wall of an air passage so that said three elements are located in said air passage and the module is fixed to the air passage. The apparatus is of low cost and small sized.
摘要翻译： 公开了一种空气流量测量装置，包括：加热电阻器和用于检测要吸入内燃机的进气流量的温度检测电阻器;以及电路模块，用于输出对应于所述进气流量的电信号 所述模块电连接到所述加热电阻器和所述温度感测电阻器。 该装置的特征在于，所述加热电阻器和所述温度感测电阻器通过形成在空气通道的壁中的开口用于测量进气温度的元件一起插入，使得所述三个元件位于所述空气通道中，并且 模块固定在空气通道上。 该设备成本低，体积小。
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公开(公告)号：US5467648A
公开(公告)日：1995-11-21
申请号：US120542
申请日：1993-09-14
CPC分类号： G01F5/00 , G01F1/6842
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5381691A
公开(公告)日：1995-01-17
申请号：US126759
申请日：1993-09-27
申请人： Atsushi Miyazaki , Chihiro Kobayashi , Shinya Igarashi , Tetsuo Matsukura , Haruhiko Maeda , Nobukatsu Arai , Yoshihito Sekine
发明人： Atsushi Miyazaki , Chihiro Kobayashi , Shinya Igarashi , Tetsuo Matsukura , Haruhiko Maeda , Nobukatsu Arai , Yoshihito Sekine
CPC分类号： G01F1/6842 , G01F5/00
摘要： An air flow meter comprises a main passage for an axial main air flow; an axial subpassage for air flow, disposed in the main passage and formed so that part of the air in the main passage is taken in at an upstream side thereof and flows in the same direction as the axial main air flow; a radial subpassage for air flow, intersecting the axial subpassage at a downstream side of the axial subpassage so that air from the axial subpassage flows into the radial subpassage and is divided into two radial air flows running in different radial directions; the air having passed through the radial subpassage joining the axial main air flow. An air flow sensing means is disposed in the radial subpassage for sensing a flow rate of air therein, and a projection is disposed in the radial subpassage around the intersection of the axial and radial subpassages, for suppressing turbulence of air flow around the intersection.
摘要翻译： 空气流量计包括用于轴向主空气流的主通道; 设置在主通道中并且形成为使主通道中的空气的一部分在其上游侧被吸入并沿与轴向主空气流相同的方向流动的用于空气流的轴向子通道; 用于空气流的径向子通道，在轴向子通道的下游侧与轴向子通道相交，使得来自轴向子通道的空气流入径向子通道并被分成在不同径向方向上运行的两个径向空气流; 已经通过径向子通道的空气连接轴向主空气流。 气流检测装置设置在径向子通道中，用于感测其中的空气流量，并且在轴向和径向子通道的交点处的径向子通道中设置突起，用于抑制交叉点周围的空气流的紊流。
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