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公开(公告)号：US06725716B1
公开(公告)日：2004-04-27
申请号：US09414885
申请日：1999-10-08
IPC分类号： G01F168
CPC分类号： G01F1/6845 , G01F1/698
摘要： A thermo-sensitive flow rate sensor having a flow rate detecting device comprising: a plate-like substrate; a heating element and a temperature compensating element constituted by thermo-sensitive resistance films and formed on a top surface of the substrate in such a way as to be spaced apart from each other; and a low heat capacity portion formed by removing partially an area, in which the heating element is formed, of the substrate from a back surface side thereof. This thermo-sensitive flow rate sensor is used for measuring the flow velocity or flow rate of a measurement fluid according to a heat transfer phenomenon where a heat is transferred from the heating element or from a portion heated by the heating element to the measurement fluid. In this thermo-sensitive flow rate sensor, a diaphragm is constructed by forming at least one cavity by removing partially a region other than the area, in which the heating element and the temperature compensating element are formed, of the substrate from the back surface side thereof.
摘要翻译： 一种具有流量检测装置的热敏流量传感器，包括：板状基板; 加热元件和由热敏电阻膜构成的温度补偿元件，并以彼此间隔开的方式形成在基板的顶表面上; 以及通过从其背面侧部分地除去基板的形成有加热元件的区域而形成的低热容部分。 该热敏流量传感器用于根据传热现象来测量测量流体的流速或流量，其中热量从加热元件或从加热元件加热的部分传递到测量流体。 在该热敏流量传感器中，通过从基板的背面侧除去部分地除去形成有加热元件和温度补偿元件的区域以外的区域来形成至少一个空腔来构造隔膜 其中。
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2.发明授权Thermal flow sensor supporting element having a gradually increased portion between its distal ends 失效热流量传感器支撑元件在其远端之间具有逐渐增加的部分
公开(公告)号：US6079264A
公开(公告)日：2000-06-27
申请号：US935056
申请日：1997-09-22
CPC分类号： G01F1/6847 , G01F1/6845 , G01F1/692
摘要： A flow rate detector has a detection pipe (26) disposed in a fluid channel (21), a supporting member (27) for supporting a thermosensitive flow rate sensor (28) being provided in the detection pipe (26). The supporting member (27) has a sensor holding portion (27a) which has a predetermined width and a broadening portion (27b) which is adjacent to one end of the sensor holding portion (27a) and the width of which gradually increases from the distal end thereof toward the sensor holding portion (27a). The flow rate sensor (28) is built in a side surface of the sensor holding portion (27a) such that it is exposed in the detection pipe (26).
摘要翻译： 流量检测器具有设置在流体通道（21）中的检测管（26），用于支撑设置在检测管（26）中的热敏流量传感器（28）的支撑件（27）。 支撑构件（27）具有预定宽度的传感器保持部分（27a）和与传感器保持部分（27a）的一端相邻的宽度部分（27b），其宽度从远端 端部朝向传感器保持部（27a）。 流量传感器（28）内置在传感器保持部（27a）的侧面，使其暴露在检测管（26）中。
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3.发明授权
公开(公告)号：US5936157A
公开(公告)日：1999-08-10
申请号：US968569
申请日：1997-11-12
CPC分类号： G01F1/692 , G01F1/6845
摘要： A thermosensitive flow rate detecting element having a flat substrate is provided with a gap having an opening on at least one side thereof for the flow of a fluid, an insulating support film provided on the one side of the substrate, a sensor unit which has a heating element for heating the fluid and a thermosensitive element for detecting temperature of the fluid provided in the upper position of the opening on the insulating support film, and a fluid temperature measuring element, provided at a distance from the sensor unit on the one side of the flat substrate, for detecting temperature of the fluid. The thermosensitive flow rate detecting element measures flow rate or flow velocity of the fluid on the basis of a temperature detected by the thermosensitive element, by keeping heating temperature of the heating element at a level higher than a temperature detected by the fluid temperature measuring element by a prescribed difference in temperature. A first notch is provided on the flat substrate near the fluid temperature measuring element and is formed by removing a part of the flat substrate from either side thereof so as not to reach the remaining side thereof.
摘要翻译： 具有平坦基板的热敏流量检测元件在其至少一侧具有用于流体流动的开口的间隙，设置在基板一侧的绝缘支撑膜，传感器单元，其具有 用于加热流体的加热元件和用于检测设置在绝缘支撑膜上的开口的上部位置的流体的温度的热敏元件和流体温度测量元件，该流体温度测量元件设置在距传感器单元一侧的距离 平板基板，用于检测流体的温度。 热敏流量检测元件通过将加热元件的加热温度保持在比流体温度测量元件检测到的温度高的水平，基于由热敏元件检测到的温度来测量流体的流速或流速，通过 规定的温差。 在液体温度测量元件附近的平坦基板上设置有第一凹口，并且通过从其任一侧去除一部分平坦基板形成，以便不到达其剩余侧面。
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公开(公告)号：US06675644B2
公开(公告)日：2004-01-13
申请号：US09289393
申请日：1999-04-12
申请人： Tomoya Yamakawa , Masahiro Kawai , Yutaka Ohashi , Yuichi Sakai , Akira Yamashita , Kazuhiko Tsutsumi
发明人： Tomoya Yamakawa , Masahiro Kawai , Yutaka Ohashi , Yuichi Sakai , Akira Yamashita , Kazuhiko Tsutsumi
IPC分类号： G01F168
CPC分类号： G01F1/6845 , G01F1/692
摘要： A thermo-sensitive flow rate sensor that comprises a plate-like substrate, a part of which is removed so that a space is provided therein, a diaphragm portion formed like a thin layer above the space in such a manner as to be integral with the plate-like substrate, and a heating element constituted by a thermo-sensitive electrically resistant film formed on the diaphragm. Plural holes penetrating the diaphragm portion are bored in an outer peripheral portion of the heating element. Each of the plurality of holes is shaped in such a way as to have obtuse corner portions or to have substantially no corner portions. The thermo-sensitive flow rate sensor measures the flow rate of a fluid, which is to be measured, according to an amount of heat transferred to the fluid from a part heated by energizing the heating element.
摘要翻译： 一种热敏流量传感器，其包括板状基板，其一部分被移除以便在其中设置空间;隔膜部分，其形成为与空间上方的薄层形成为一体， 板状基板和由形成在隔膜上的热敏电阻膜构成的加热元件。 穿透隔膜部分的多个孔在加热元件的外周部分中钻孔。 多个孔中的每一个成形为具有钝角部分或基本上没有角部。 热敏流量传感器根据通过激励加热元件加热的部件传递到流体的热量来测量要测量的流体的流量。
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公开(公告)号：US06615655B1
公开(公告)日：2003-09-09
申请号：US10031148
申请日：2002-01-17
申请人： Yuichi Sakai , Akira Yamashita , Motohisa Taguchi , Tomoya Yamakawa , Masahiro Kawai , Kazuhiko Tsutsumi
发明人： Yuichi Sakai , Akira Yamashita , Motohisa Taguchi , Tomoya Yamakawa , Masahiro Kawai , Kazuhiko Tsutsumi
IPC分类号： G01F168
CPC分类号： G01F1/692 , G01F1/6845
摘要： A flow rate detecting element measuring the flow rates of various fluids, particularly the intake air of an internal combustion engine. The flow rate detecting element has a thin film layer including a support film and a protective film on one surface of a flat substrate, a heating resistance section and a comparative resistance section thermosensitive resistor having patterns and located between the support film and the protective film. The flat substrate has a recess which penetrates the flat substrate in the thickness direction thereof and facing the heating resistance section and the comparative resistance section. A fluid flow passage communicates with the recess which faces the comparative resistance section for fluid flow into the recess. Flow rate or velocity of a fluid can be measured accurately using the heating resistance section according to the fluid temperature reported by the comparative resistance section.
摘要翻译： 流量检测元件，其测量各种流体的流量，特别是内燃机的进气。 流量检测元件具有在平坦基板的一个表面上包括支撑膜和保护膜的薄膜层，具有图案并位于支撑膜和保护膜之间的加热电阻部分和比较电阻部分热敏电阻器。 平面基板具有在其平坦基板的厚度方向上贯通平板状基板的面向加热电阻部和比较电阻部的凹部。 流体流动通道与面向比较电阻部分的凹部连通，以使流体流入凹部。 可以使用根据比较电阻部报告的流体温度的加热电阻部分精确地测量流体的流速或速度。
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公开(公告)号：US5965811A
公开(公告)日：1999-10-12
申请号：US940964
申请日：1997-09-30
CPC分类号： G01P5/10 , G01F1/6845 , G01F1/692
摘要： A flow rate detecting element has a flat substrate 1 provided with a gap opening 18 on at least one side surface, a sensor section 15 including a heating resistance element 4 and a pair of temperature detecting resistance elements 5, 6 arranged on opposite sides of the heating resistance element and wrapped by an insulating supporting film 2 and an insulating protecting film 3 from above and below. The sensor section is arranged on a plane substantially parallel with a surface of the flat substrate and at least one end of the supporting film is held by the flat substrate to locate the sensor section over the gap, whereby the most part of the sensor section is disposed in a non-contact state with the flat substrate. A thin-film-shaped thermal conduction promoting member 11 is provided in a heat transmitting path of the sensor section between the heating resistance element and the pair of temperature detecting resistance elements, and has a higher thermal conductivity than the supporting film and the protecting film.
摘要翻译： 流量检测元件具有在至少一个侧面上设置有间隙开口18的平坦基板1，包括加热电阻元件4的传感器部15和布置在第二侧的相对侧的一对温度检测电阻元件5,6 加热电阻元件并由绝缘支撑膜2和绝缘保护膜3从上方和下方包裹。 传感器部分布置在与平坦基板的表面基本平行的平面上，并且支撑膜的至少一端由平坦基板保持，以将传感器部分定位在间隙上，由此传感器部分的大部分是 与平坦基板以非接触状态配置。 在传感器部分的传热路径中，在加热电阻元件和一对温度检测电阻元件之间设置有薄膜状导热促进元件11，并且具有比支撑膜和保护膜更高的热导率 。
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公开(公告)号：US06301960B1
公开(公告)日：2001-10-16
申请号：US09456011
申请日：1999-12-07
申请人： Tomoya Yamakawa , Masahiro Kawai
发明人： Tomoya Yamakawa , Masahiro Kawai
IPC分类号： G01F168
CPC分类号： G01F1/6845 , G01F1/692
摘要： A thermo-sensitive flow rate sensor includes a flow rate detecting device that has a plurality of flow rate detecting diaphragms, each of which is provided with heating portions and temperature detecting portions. The plurality of flow rate detecting diaphragms are arranged in a direction perpendicular to a direction of flow of a fluid to be measured. Each of the flow rate detecting diaphragms is formed and placed so that the length of a longer side thereof is two times the length of a shorter side or more, and that the longer side thereof extends along the direction of flow of the fluid to be measured. Each of the flow rate detecting diaphragms has at least one of the heating potions and at least one of the temperature detecting portions, which are arranged in the direction of flow of the fluid to be measured.
摘要翻译： 热敏流量传感器包括具有多个流量检测膜片的流量检测装置，每个流量检测膜片设置有加热部分和温度检测部分。 多个流量检测膜片沿与被测量流体的流动方向垂直的方向排列。 每个流量检测膜片被形成并放置成使其长边的长度为短边的长度的两倍或更长，并且其长边沿着待测量流体的流动方向延伸 。 每个流量检测膜片具有至少一个加热部分和至少一个温度检测部分，其被布置在待测量流体的流动方向上。
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公开(公告)号：US06314807B1
公开(公告)日：2001-11-13
申请号：US09481591
申请日：2000-01-12
申请人： Masahiro Kawai , Tomoya Yamakawa
发明人： Masahiro Kawai , Tomoya Yamakawa
IPC分类号： G01F168
CPC分类号： G01F1/69 , G01F1/6845 , G01F1/699
摘要： A thermal-type flow sensor of high detection sensitivity and reliability in which a temperature measuring resistor is maintained at a predetermined temperature includes a plate-like substrate (1), a low heat capacity portion (13A) formed on a surface of the substrate (1), a heat generating resistor pattern (4) and a temperature measuring resistor (14) disposed on the low heat capacity portion (13A) and each formed of a heat-sensitive resistance film, and a control circuit (50) for applying a constant voltage (Vcc) to the temperature measuring resistor (14) while supplying a heating current (i) to the heat generating resistor pattern (4) for thereby outputting a flow-rate measurement signal derived on the basis of the heating current (i). The heat generating resistor pattern (4) and the temperature measuring resistor (14) are disposed essentially on a planar array along a direction in which a fluid destined for measurement flows. The temperature measuring resistor (14) is disposed internally of the heat generating resistor pattern (4) at a location upstream of a peak position of a temperature distribution making appearance in the flow direction of the fluid under the action of heat generated by the heat generating resistor pattern (4).
摘要翻译： 将温度测量电阻器保持在预定温度的高检测灵敏度和可靠性的热式流量传感器包括板状基板（1），形成在基板表面上的低热容部分（13A） 1），设置在低热容部分（13A）上并由热敏电阻膜形成的发热电阻器图案（4）和温度测量电阻器（14），以及控制电路（50） 同时向发热电阻图案（4）供给加热电流（i），从而输出基于加热电流（i）导出的流量测量信号，将温度测量电阻器（14）的恒定电压（Vcc） 。 发热电阻图案（4）和温度测量电阻器（14）基本上位于沿着流向待测量流体的方向流动的平面阵列上。 温度测量电阻器（14）在发热电阻器图案（4）的内部位于在由发热产生的热的作用下在流体的流动方向出现的温度分布的峰值位置的上游位置 电阻图案（4）。
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公开(公告)号：US6134960A
公开(公告)日：2000-10-24
申请号：US103939
申请日：1998-06-25
申请人： Tomoya Yamakawa , Masahiro Kawai
发明人： Tomoya Yamakawa , Masahiro Kawai
摘要： A thermal-type flow sensor capable of generating a monotonously increasing output over a time period of transition from a reverse flow to a forward flow with a simplified structure while exhibiting high sensitivity in the measurement of flow rate in the forward direction. The flow sensor includes a plurality of heat generating portions implemented by upstream heat-sensitive resistor (4) and downstream heat-sensitive resistor (5) within a passage (19) as viewed in a direction in which fluid flows through the passage (19), for thereby measuring a flow rate or a flowing speed of the fluid on the basis of heat transfer phenomenon taking place between the heat generating portions and the fluid. The flow sensor includes a heating current control means (30, 31, 32) for controlling heating currents flowing through the heat-sensitive resistors (4, 5) so that temperatures of the plurality of heat generating portions increase by predetermined values relative to the temperature of the fluid, a means (34) for determining difference between heating currents flowing through the upstream heat generating portion and the downstream heat generating portion, and means (35 to 37) for detecting the flowing speed or the flow rate of the fluid on the basis of the difference between the heating currents.
摘要翻译： 一种热式流量传感器，其能够在从反向流向正向流动的时间段内以简化的结构产生单调增加的输出，同时在向前方向的流量测量中表现出高灵敏度。 流体传感器包括从流体流过通道（19）的方向观察的在通道（19）内的上游热敏电阻（4）和下游热敏电阻（5）实现的多个发热部分， 从而基于在发热部和流体之间发生的热传递现象来测量流体的流量或流速。 流量传感器包括用于控制流过热敏电阻（4,5）的加热电流的加热电流控制装置（30,31,32），使得多个发热部分的温度相对于温度增加预定值 的流体，用于确定流过上游发热部分和下游发热部分的加热电流之间的差异的装置（34），以及用于检测在上游发热部分和下游发热部分上的流体的流速或流量的装置（35至37） 加热电流之差的基础。
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公开(公告)号：US09541147B2
公开(公告)日：2017-01-10
申请号：US14391184
申请日：2013-03-29
申请人： Kouji Isoda , Takahide Saito , Masahiro Kawai , Yasumasa Hibi , Yumiko Mineno
发明人： Kouji Isoda , Takahide Saito , Masahiro Kawai , Yasumasa Hibi , Yumiko Mineno
CPC分类号： F16D67/02 , B60N2/165 , B60N2/167 , B60N2/168 , B60N2/169 , B60N2/1814 , B60N2/1882 , B60N2/1892 , B60N2/1896 , F16D41/105 , F16D41/18
摘要： A clutch unit includes a lever-side clutch section provided on an input side, for controlling rotational torque to be input through lever operation, and a brake-side clutch section provided on an output side, for transmitting the rotational torque from the lever-side clutch section to the output side, and interrupting rotational torque to be reversely input from the output side. The brake-side clutch section has a two-layer structure, in which two one-way clutches are arranged side by side in an axial direction. The first one-way clutch interrupts rotational torque in a forward direction, which is reversely input from the output side, through meshing of serrated projection and depression portions, whereas the second one-way clutch interrupts rotational torque in a backward direction, which is reversely input from the output side, through meshing of serrated projection and depression portions arranged in an opposite direction.
摘要翻译： 离合器单元包括设置在输入侧的杠杆侧离合器部分，用于控制通过杠杆操作输入的转矩;以及制动器侧离合器部分，其设置在输出侧，用于将来自杠杆侧的转矩传递 离合器部分到输出侧，并且阻止从输出侧反向输入的转矩。 制动侧离合器部分具有双轴结构，其中两个单向离合器沿轴向并排设置。 第一单向离合器通过锯齿状突起和凹陷部的啮合而中断从输出侧反向输入的前进方向的转矩，而第二单向离合器中断逆向反转的转矩 通过沿相反方向布置的锯齿形突起和凹陷部分的啮合，从输出侧输入。
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