公开(公告)号：US06557410B2

公开(公告)日：2003-05-06

申请号：US09991906

申请日：2001-11-26

申请人： Hiroyuki Uramachi ,  Fumiyoshi Yonezawa ,  Tomoya Yamakawa

发明人： Hiroyuki Uramachi ,  Fumiyoshi Yonezawa ,  Tomoya Yamakawa

IPC分类号： G01F168

CPC分类号： G01F1/684 ,  G01F1/6842

摘要： In a flow rate sensor, a sensing passage, into which a fluid is introduced and in which a flow rate sensing element is disposed, a support member for supporting the sensing passage, and a circuit case, in which an electronic circuit unit for controlling the flow rate sensing element is accommodated, are formed integrally with each other, and the support member extends into a main passage through a hole opened to the main passage so as to position the sensing passage in the main passage. A structural member, the outside shape of which is formed to have a fluid resistance approximately similar to that of the portion of the support member extending from the hole, is disposed at a position approximately symmetrical with the portion of the support member extending from the hole about the sensing passage.

摘要翻译： 在流量传感器中，流体被引入并且其中设置有流量感测元件的感测通道，用于支撑感测通道的支撑构件，以及电路壳体，其中控制电子电路单元 流量检测元件被容纳在一起，并且支撑构件通过通向主通道的孔延伸到主通道中，以将检测通道定位在主通道中。 形成为具有与从孔延伸的支撑构件的部分大致相似的流体阻力的结构构件设置在与从孔延伸的支撑构件的部分大致对称​​的位置处 关于传感通道。

公开(公告)号：US06393907B1

公开(公告)日：2002-05-28

申请号：US09379353

申请日：1999-08-23

申请人： Tomoya Yamakawa ,  Fumiyoshi Yonezawa ,  Hiroyuki Uramachi

发明人： Tomoya Yamakawa ,  Fumiyoshi Yonezawa ,  Hiroyuki Uramachi

IPC分类号： G01F168

CPC分类号： G01F1/698 ,  G01F1/684 ,  G01F1/6842 ,  G01F1/6845

摘要： A thermo-sensitive flow rate sensor that has a flow rate detecting device, in which a heating element constituted by thermo-sensitive resistor film, is formed on a top surface of a plate-like substrate and in which a diaphragm is formed by partially removing the plate-like substrate. This sensor further has a supporting element arranged in such a way as to have a top surface that is parallel to the direction of flow of a fluid to be measured. The flow rate detecting device is supported and fixed in a recess portion formed in the supporting element so that the top surface of the device is nearly flush with the top surface of the supporting element. Further, the thin-plate-like member is attached to the back surface of the flow rate detecting device in such a way as to close a cavity.

摘要翻译： 一种热敏流量传感器，其具有流量检测装置，其中由热敏电阻膜构成的加热元件形成在板状基板的顶表面上，并且其中通过部分去除形成隔膜 板状基板。 该传感器还具有支撑元件，其布置成具有平行于待测量流体的流动方向的顶表面。 流量检测装置被支撑并固定在形成在支撑元件中的凹部中，使得装置的顶表面与支撑元件的顶表面几乎齐平。 此外，薄板状构件以闭合空腔的方式附接到流量检测装置的背面。

公开(公告)号：US06561021B2

公开(公告)日：2003-05-13

申请号：US09839534

申请日：2001-04-23

申请人： Hiroyuki Uramachi ,  Fumiyoshi Yonezawa ,  Naruki Suetake ,  Ryuji Tohyama ,  Tomoya Yamakawa ,  Shingo Hamada ,  Takeharu Oshima

发明人： Hiroyuki Uramachi ,  Fumiyoshi Yonezawa ,  Naruki Suetake ,  Ryuji Tohyama ,  Tomoya Yamakawa ,  Shingo Hamada ,  Takeharu Oshima

IPC分类号： G01F500

CPC分类号： G01F1/6842

摘要： A flow rate-measuring device capable of measuring accurately a flow rate of fluid to be measured containing a drift or eddy as compared with a conventional device is provided. A flow rate-measuring passage 11 for measuring a flow rate of the fluid to be measured is constructed so that its opening area in an upstream region communicating to an inlet 111 gradually decreases from upstream to downstream. A flow rate-detecting element 31 is disposed near an outlet in the flow rate-measuring passage 11. The device is provided with a leak flow passage 18 allowing a part of the fluid which has flown in from the inlet 111 of the flow rate-measuring passage 11 to leak out of the flow rate-measuring passage 11 at a portion upstream from an outlet 112 of the flow rate-measuring passage 11, in particular upstream from a position where the flow rate-detecting element 31 is disposed.

公开(公告)号：US06470743B2

公开(公告)日：2002-10-29

申请号：US09847582

申请日：2001-05-03

申请人： Fumiyoshi Yonezawa ,  Hiroyuki Uramachi ,  Shingo Hamada

发明人： Fumiyoshi Yonezawa ,  Hiroyuki Uramachi ,  Shingo Hamada

IPC分类号： G01F168

CPC分类号： G01F1/692 ,  G01F1/6842

摘要： A heat-sensitive flow rate sensor that is high in productivity, superior in accuracy of flow rate measurement and sensitivity. A bottom face of a concave accommodating portion 18 of an supporting member 16 is provided with an adhesion face 24 for fastening a flow rate-detecting element 14 thereon with an adhesive 15, installation faces 25a, 25b for holding the flow rate-detecting element 14 thereon, and a protruding face 26 for blocking in a raised manner the whole area of a cavity 13 on the underside of the flow rate-detecting element 14. As a result of employing this construction, even when increasing an intake fluid to a large amount of flow, the protruding face 26 blocks the vicinity of the cavity 13. Therefore, the fluid to be measured hardly flows into the gap between the underside of the flow rate-detecting element 14 and the supporting member 16. Consequently, accuracy in flow rate measurement is improved. Furthermore, the protruding face 26 is formed slightly larger than the area of the cavity 13 in the flow rate-detecting element 14, thereby preventing an underflow. As a result, assembling the flow rate-detecting element 14 becomes easier, which is suitable for large-scale production.

摘要翻译： 一种生产率高，流量测量精度高，灵敏度高的热敏流量传感器。 支撑构件16的凹入容纳部18的底面设置有用粘合剂15紧固流量检测元件14的粘合面24，用于保持流量检测元件14的安装面25a，25b 以及用于以升高的方式阻塞流量检测元件14的下侧上的空腔13的整个区域的突出面26。作为采用该结构的结果，即使将进气流量增加到大量 因此，突出面26阻挡空腔13的附近。因此，待测量的流体几乎不流入流量检测元件14的下侧与支撑构件16之间的间隙。因此，流量精度 测量得到改善。 此外，突出面26形成为比流量检测元件14中的空腔13的面积略大，从而防止下溢。 结果，组装流量检测元件14变得更容易，这适合于大规模生产。

公开(公告)号：US06234015B1

公开(公告)日：2001-05-22

申请号：US09285037

申请日：1999-04-01

申请人： Shingo Hamada ,  Tomoya Yamakawa ,  Fumiyoshi Yonezawa ,  Hiroyuki Uramachi ,  Takeharu Oshima ,  Satoru Kotoh

发明人： Shingo Hamada ,  Tomoya Yamakawa ,  Fumiyoshi Yonezawa ,  Hiroyuki Uramachi ,  Takeharu Oshima ,  Satoru Kotoh

IPC分类号： G01F168

CPC分类号： G01F1/69 ,  G01F1/684 ,  G01F1/72 ,  G01F5/00

摘要： A flow rate measuring device includes a flow rate measuring duct for placement in a primary passage for a fluid, extending substantially parallel to the primary passage, and a flow rate detector in the flow rate measuring duct for measuring a flow rate of the fluid in the primary passage, the flow rate measuring duct having a downstream wall including a notch or a through hole. The downstream wall may include an air-permeable member. The flow rate measuring device may include a projection on an outer wall of the flow rate measuring duct upstream of the notch, through hole, or air-permeable member, the projection extending in a circumferential direction with respect to the flow rate measuring duct.

摘要翻译： 流量测量装置包括用于放置在基本平行于主通道的流体的主通道中的流量测量管道和流量测量管道中的流量检测器，用于测量流体的流速 初级通道，流量测量管道具有包括缺口或通孔的下游壁。 下游壁可以包括透气构件。 流量测量装置可以包括在凹口，通孔或透气构件的上游的流量测量管道的外壁上的突起，该突起在相对于流量测量导管的圆周方向上延伸。

公开(公告)号：US06189380B1

公开(公告)日：2001-02-20

申请号：US09154983

申请日：1998-09-17

申请人： Tomoya Yamakawa ,  Shingo Hamada ,  Fumiyoshi Yonezawa ,  Takeharu Oshima ,  Satoru Kotoh ,  Hiroyuki Uramachi

发明人： Tomoya Yamakawa ,  Shingo Hamada ,  Fumiyoshi Yonezawa ,  Takeharu Oshima ,  Satoru Kotoh ,  Hiroyuki Uramachi

IPC分类号： G01F168

CPC分类号： G01F1/6842

摘要： A flow rate sensor comprises a fluid passage for a fluid to flow therealong; a main body structure arranged so as to turn its front end to the upstream side of the fluid and coaxially positioned within the fluid passage; and a detecting element disposed between the main body structure and the internal surface of the fluid passage. The main body structure is formed such that its cross section perpendicular to its central axis, at first becomes gradually larger from its front end towards its rear end and then becomes gradually smaller. The detecting element includes a ceramic substrate coated with a film made of a thermo-sensitive electrically resistant material. The film is formed into a meander pattern so as to form a flow rate detecting resistance. The detecting element further includes a fluid temperature compensating resistance.

摘要翻译： 流量传感器包括用于流体流过其的流体通道; 主体结构，其布置成将其前端转动到流体的上游侧并同轴地定位在流体通道内; 以及设置在主体结构和流体通道的内表面之间的检测元件。 主体结构形成为使得其垂直于其中心轴线的截面首先从其前端朝向后端逐渐变大，然后逐渐变小。 检测元件包括涂覆有由热敏电阻材料制成的膜的陶瓷基板。 该膜形成为曲折图案，以形成流量检测电阻。 检测元件还包括流体温度补偿电阻。

公开(公告)号：US06871534B1

公开(公告)日：2005-03-29

申请号：US09425630

申请日：1999-10-22

申请人： Shingo Hamada ,  Fumiyoshi Yonezawa ,  Hiroyuki Uramachi ,  Tomoya Yamakawa ,  Takeharu Oshima ,  Satoru Kotoh

发明人： Shingo Hamada ,  Fumiyoshi Yonezawa ,  Hiroyuki Uramachi ,  Tomoya Yamakawa ,  Takeharu Oshima ,  Satoru Kotoh

IPC分类号： G01F1/68 ,  F02D35/00 ,  F02D41/18 ,  F02M35/04 ,  G01F1/684 ,  G01F1/69 ,  G01F5/00

CPC分类号： G01F5/00 ,  F02D41/185 ,  F02D41/187 ,  F02M35/021 ,  G01F1/6842

摘要： A post in a fluid passage for passing a fluid flow extends across a part of the fluid flow; a measuring duct in the post extends through the post; and a flow rate detector is located in the measuring duct. The measuring duct has a fluid introduction port with an elongated shape, the measuring duct is constricted and has at least a portion located between the fluid introduction port and the flow rate detector, substantially smoothly narrowing toward a downstream direction of the flow in a longitudinal direction of the elongated shape.

摘要翻译： 用于通过流体流动的流体通道中的柱延伸穿过流体流的一部分; 柱中的测量管延伸穿过柱; 并且流量检测器位于测量管道中。 测量管道具有细长形状的流体导入口，测量管道收缩，并且至少有一部分位于流体导入口和流量检测器之间，沿着纵向朝向流动的下游方向大致平滑地变窄 的细长形状。

公开(公告)号：US08181514B2

公开(公告)日：2012-05-22

申请号：US13029535

申请日：2011-02-17

申请人： Yuji Ariyoshi ,  Hiroyuki Uramachi ,  Masahiro Kawai ,  Naruki Suetake ,  Koji Tanimoto

发明人： Yuji Ariyoshi ,  Hiroyuki Uramachi ,  Masahiro Kawai ,  Naruki Suetake ,  Koji Tanimoto

IPC分类号： G01F1/68

CPC分类号： G01F1/6842 ,  G01F1/72

摘要： An inflow port and an outflow port of a bypass passage have openings on a front surface near a projecting end and on a bottom surface, respectively, of a bypass passage forming member. A recess portion is disposed on the front surface of the bypass passage forming member on a circuit housing portion side of the inflow port so as to extend at a predetermined depth over an entire region in a longitudinal direction of a short side of a rectangular cross section of the bypass passage forming member.

摘要翻译： 旁通通道的流入口和流出口分别在旁通通道形成构件的突出端和底面的前表面上具有开口。 在流路的电路容纳部侧的旁路通路形成部件的前表面上设置有凹部，以在矩形截面的短边的长度方向的整个区域上以规定的深度延伸 的旁路通路形成构件。

公开(公告)号：US08511158B2

公开(公告)日：2013-08-20

申请号：US12897238

申请日：2010-10-04

申请人： Naoyuki Kishikawa ,  Koji Tanimoto ,  Yuji Ariyoshi ,  Masahiro Kawai ,  Shinichiro Hidaka ,  Hiroyuki Uramachi

发明人： Naoyuki Kishikawa ,  Koji Tanimoto ,  Yuji Ariyoshi ,  Masahiro Kawai ,  Shinichiro Hidaka ,  Hiroyuki Uramachi

IPC分类号： G01F1/68

CPC分类号： G01F1/6842 ,  G01F1/6845 ,  G01F15/185

摘要： Provided is a flow rate measuring apparatus which prevents a reduction in flow-rate detection accuracy through reducing stress applied to a flow rate detection element. The flow rate measuring apparatus includes a support member (8) provided with a stepped portion (9) formed between a region facing a circuit board (5) and a region facing a detection portion of a flow rate detection element (3), in which the support member (8) includes a groove portion (11a) provided on a side opposite to an insertion hole (2) with respect to the region facing the detection portion, for reducing stress applied to the flow rate detection element (3).

摘要翻译： 提供一种流量测量装置，其通过减少施加到流量检测元件的应力来防止流量检测精度的降低。 该流量测量装置包括一个支撑部件（8），该支撑部件（8）具有形成在面对电路板（5）的区域与面对流量检测元件（3）的检测部分的区域之间的阶梯部分（9），其中 所述支撑部件（8）包括相对于面向所述检测部的区域与所述插入孔（2）相反的一侧设置的沟槽部（11a），用于减小施加到所述流量检测元件（3）的应力。

公开(公告)号：US07926343B2

公开(公告)日：2011-04-19

申请号：US12437885

申请日：2009-05-08

申请人： Yuji Ariyoshi ,  Masahiro Kawai ,  Koji Tanimoto ,  Hiroyuki Uramachi

发明人： Yuji Ariyoshi ,  Masahiro Kawai ,  Koji Tanimoto ,  Hiroyuki Uramachi

IPC分类号： G01F1/68

CPC分类号： G01F5/00 ,  F02D41/187 ,  G01F1/684 ,  G01F1/6842 ,  G01F1/692 ,  G01F1/72

摘要： In a flow rate measuring device including a bypass channel having at least one bending portion and at least one channel portions, a detecting element is disposed in the bypass channel to detect the flow rate of measurement target fluid, a ratio L/H of a width H of the channel portion in which the detecting element is disposed, and a distance L from the bending portion at the upstream side of the detecting element to the upstream end portion of the detecting portion is set in range from 0 to 0.7, and a ratio D/H of a distance D from the wall surface of the base side of the detecting element to the center of the detecting portion of the surface of the detecting element and the width H of the channel portion is set in the range from 0.22 to 0.33.

摘要翻译： 在包括具有至少一个弯曲部分和至少一个通道部分的旁通通道的流量测量装置中，检测元件设置在旁路通道中以检测测量对象流体的流量，宽度的比率L / H 设置有检测元件的通道部分的距离L和从检测部件的上游侧的弯曲部到检测部的上游端部的距离L设定在0〜0.7的范围内， 从检测元件的底侧的壁面到检测元件的表面的检测部分的中心的距离D和通道部分的宽度H的距离D的D / H设定在0.22至0.33的范围内 。