公开(公告)号：US08752424B2

公开(公告)日：2014-06-17

申请号：US13524162

申请日：2012-06-15

申请人： Takao Ban ,  Noboru Kitahara

发明人： Takao Ban ,  Noboru Kitahara

IPC分类号： G01F5/00

CPC分类号： G01F5/00 ,  G01F1/6842

摘要： A bypass passage receives a part of air flowing through a duct. A sub-bypass passage is branched from an intermediate portion of the bypass passage to separate dust contained in air flowing through the duct. A flow rate sensor is located in the sub-bypass passage for detecting the flow rate of air. A first wall surface and a second wall surface of the bypass passage are located upstream from the branch. The first wall surface is located on the side of the branch. The second wall surface is opposed to the first wall surface. Both the first wall surface and the second wall surface are curved to direct airflow to move away from the branch.

摘要翻译： 旁路通道接收流过管道的空气的一部分。 副旁通通道从旁路通道的中间部分分支，以分离通过管道流动的空气中包含的灰尘。 流量传感器位于副旁路通路中，用于检测空气的流量。 旁路通道的第一壁表面和第二壁表面位于分支的上游。 第一个墙面位于分支的一侧。 第二壁面与第一壁面相对。 第一壁表面和第二壁表面都弯曲以引导气流远离分支。

公开(公告)号：US5581026A

公开(公告)日：1996-12-03

申请号：US319030

申请日：1994-10-06

申请人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Tsunemitsu Kato ,  Takao Ban ,  Kunihiro Umezu ,  Noboru Kitahara ,  Minoru Kondo

发明人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Tsunemitsu Kato ,  Takao Ban ,  Kunihiro Umezu ,  Noboru Kitahara ,  Minoru Kondo

IPC分类号： G01F1/684 ,  G01F5/00

CPC分类号： G01F1/6842 ,  G01F5/00

摘要： A flow meter for measuring a flow rate of fluid includes a body providing a main passage through which the fluid flows. A plurality of support elements connect an inner wall surface of the body and a central element so as to support the central element substantially at the center of the main passage. An introducing port opens to the central element for introducing a part of the fluid flowing through the main passage. A branch passage is formed within the central element, through which such part of the fluid flows. A sensor is disposed within the branch passage for measuring a flow rate within the branch passage. An outlet opens to a portion of the central element located at upperstream of the downstream ends of the support elements for returning the fluid flowing through the branch passages to the main passage.

摘要翻译： 用于测量流体流速的流量计包括提供流体流经的主通道的主体。 多个支撑元件连接主体的内壁表面和中心元件，以便将中心元件基本上支撑在主通道的中心。 引入口通向中心元件，用于引入流过主通道的流体的一部分。 分支通道形成在中心元件内，流体通过该分支通道流动。 传感器设置在分支通道内用于测量分支通道内的流量。 出口通向位于支撑元件的下游端的上游侧的中心元件的一部分，用于将流过分支通道的流体返回到主通道。

公开(公告)号：US20130019675A1

公开(公告)日：2013-01-24

申请号：US13524162

申请日：2012-06-15

申请人： Takao Ban ,  Noboru Kitahara

发明人： Takao Ban ,  Noboru Kitahara

IPC分类号： G01F5/00

CPC分类号： G01F5/00 ,  G01F1/6842

摘要： A bypass passage receives a part of air flowing through a duct. A sub-bypass passage is branched from an intermediate portion of the bypass passage to separate dust contained in air flowing through the duct. A flow rate sensor is located in the sub-bypass passage for detecting the flow rate of air. A first wall surface and a second wall surface of the bypass passage are located upstream from the branch. The first wall surface is located on the side of the branch. The second wall surface is opposed to the first wall surface. Both the first wall surface and the second wall surface are curved to direct airflow to move away from the branch.

摘要翻译： 旁路通道接收流过管道的空气的一部分。 副旁通通道从旁路通道的中间部分分支，以分离通过管道流动的空气中包含的灰尘。 流量传感器位于副旁路通路中，用于检测空气的流量。 旁路通道的第一壁表面和第二壁表面位于分支的上游。 第一个墙面位于分支的一侧。 第二壁面与第一壁面相对。 第一壁表面和第二壁表面都弯曲以引导气流远离分支。

公开(公告)号：US07437925B2

公开(公告)日：2008-10-21

申请号：US11521602

申请日：2006-09-15

申请人： Takao Ban ,  Noboru Kitahara ,  Yasushi Goka ,  Yasushi Kouno ,  Gunnar Nees

发明人： Takao Ban ,  Noboru Kitahara ,  Yasushi Goka ,  Yasushi Kouno ,  Gunnar Nees

IPC分类号： G01F1/68

CPC分类号： G01F1/6842 ,  F02D41/187

摘要： A flow detecting device is provided to a fluid passage through which a main flow of fluid passes. A sensor body has a bypass passage through which a bypass flow passes from the main flow. The bypass passage has a bent portion, which is located midway through the bypass passage, and an outflow passage, which is located downstream of the bent portion. The flow direction of the bypass flow changes at the bent portion toward the outflow passage through the bypass passage. A heating element is arranged in the bypass passage. The heating element generates heat by being supplied with electricity for detecting a flow amount of fluid. The sensor body has a side surface defining an opening through which dynamic pressure caused by counterflow is released to an outside of the outflow passage when fluid causes counterflow in the fluid passage in a direction opposite to a flow direction of the main flow.

摘要翻译： 流体检测装置设置在主流体通过的流体通道中。 传感器主体具有旁路通道，旁路通过该通道从主流流动。 旁通通道具有位于旁通通道中途的弯曲部分和位于弯曲部分下游的流出通道。 旁通流的流动方向在弯曲部分处朝着通过旁通通道的流出通道改变。 旁通通道中设有加热元件。 加热元件通过供给用于检测流体流量的电力而产生热量。 传感器主体具有限定开口的侧表面，当流体在与主流动方向相反的方向上导致流体流动逆流时，逆流引起的动压被释放到流出通道的外部。

公开(公告)号：US08844342B2

公开(公告)日：2014-09-30

申请号：US13604652

申请日：2012-09-06

申请人： Noboru Kitahara ,  Takashi Ooga ,  Takao Ban

发明人： Noboru Kitahara ,  Takashi Ooga ,  Takao Ban

IPC分类号： G01M15/04

CPC分类号： G01M15/04 ,  F02D41/18 ,  G01F1/6842

摘要： An air flow measuring device includes a housing, a sensor, and a throttle that is provided on an outer wall surface of the housing. The throttle merges together a bypass-passing flow and an outside-passing flow, and guides the merged flow toward the downstream side with the merged flow narrowed. The throttle includes two raised portions and a cover that bridges between the two raised portions and is opposed to the outer wall surface of the housing. The cover includes an inner surface exposed to the throttle, and an outer surface exposed to outside of the throttle. A peripheral border of the cover includes an upstream edge which defines the outer surface on the upstream side. At least a region of the outer surface including the upstream edge is swollen more outwardly in a shape of a projecting curved surface further on the downstream side.

摘要翻译： 气流测量装置包括壳体，传感器和设置在壳体的外壁表面上的节流阀。 节气门将旁通流和外流流合并在一起，并合并流动向下游侧引导合流。 节气门包括两个凸起部分和在两个凸起部分之间桥接并且与壳体的外壁表面相对的盖。 该盖包括暴露于节气门的内表面和暴露于节气门外部的外表面。 盖的外围边界包括限定上游侧的外表面的上游边缘。 包括上游边缘的外表面的至少一个区域在下游侧进一步向外膨胀成凸出的弯曲表面的形状。

公开(公告)号：US5571964A

公开(公告)日：1996-11-05

申请号：US429471

申请日：1995-04-27

申请人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Tsunemitsu Kato ,  Takao Ban ,  Kunihiro Umezu ,  Noboru Kitahara ,  Minoru Kondo

发明人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Tsunemitsu Kato ,  Takao Ban ,  Kunihiro Umezu ,  Noboru Kitahara ,  Minoru Kondo

IPC分类号： G01F1/684 ,  G01F5/00

CPC分类号： G01F1/6842 ,  G01F5/00

摘要： A flow meter for measuring a flow rate of fluid includes a body providing a main passage through which the fluid flows. A plurality of support elements connect an inner wall surface of the body and a central element so as to support the central element substantially at the center of the main passage. An introducing port opens to the central element for introducing a part of the fluid flowing through the main passage. A branch passage is formed within the central element, through which such part of the fluid flows. A sensor is disposed within the branch passage for measuring a flow rate within the branch passage. An outlet opens to a portion of the central element located at upperstream of the downstream ends of the support elements for returning the fluid flowing through the branch passages to the main passage.

公开(公告)号：US20070056363A1

公开(公告)日：2007-03-15

申请号：US11521602

申请日：2006-09-15

申请人： Takao Ban ,  Noboru Kitahara ,  Yasushi Goka ,  Yasushi Kouno ,  Gunnar Nees

发明人： Takao Ban ,  Noboru Kitahara ,  Yasushi Goka ,  Yasushi Kouno ,  Gunnar Nees

IPC分类号： G01M19/00 ,  G01F1/68

CPC分类号： G01F1/6842 ,  F02D41/187

摘要： A flow detecting device is provided to a fluid passage through which a main flow of fluid passes. A sensor body has a bypass passage through which a bypass flow passes from the main flow. The bypass passage has a bent portion, which is located midway through the bypass passage, and an outflow passage, which is located downstream of the bent portion. The flow direction of the bypass flow changes at the bent portion toward the outflow passage through the bypass passage. A heating element is arranged in the bypass passage. The heating element generates heat by being supplied with electricity for detecting a flow amount of fluid. The sensor body has a side surface defining an opening through which dynamic pressure caused by counterflow is released to an outside of the outflow passage when fluid causes counterflow in the fluid passage in a direction opposite to a flow direction of the main flow.

摘要翻译： 流体检测装置设置在主流体通过的流体通道中。 传感器主体具有旁路通道，旁路通过该通道从主流流动。 旁通通道具有位于旁通通道中途的弯曲部分和位于弯曲部分下游的流出通道。 旁通流的流动方向在弯曲部分处朝着通过旁通通道的流出通道改变。 旁通通道中设有加热元件。 加热元件通过供给用于检测流体流量的电力而产生热量。 传感器主体具有限定开口的侧表面，当流体在与主流动方向相反的方向上导致流体流动逆流时，逆流引起的动压被释放到流出通道的外部。

公开(公告)号：US06619140B2

公开(公告)日：2003-09-16

申请号：US09865724

申请日：2001-05-29

申请人： Noboru Kitahara ,  Takao Ban

发明人： Noboru Kitahara ,  Takao Ban

IPC分类号： G01F137

CPC分类号： G01F1/6842

摘要： A separator partitions an upstream side air passage of a bypass passage into first and second sub passages. A thermal flow sensor is attached to the separator facing the first sub passage. A convex is formed on the inner wall of an outer pipe defining the second sub passage. The convex protrudes toward the separator. Minimum flow passage area S2 of the second sub passage is smaller than minimum flow passage area S1 of the first sub passage, so that flow passage loss of the second sub passage is larger than flow passage loss of the first sub passage. Thus, measured air-flow amount average when the air-flow pulsates is corrected to be larger.

摘要翻译： 分离器将旁通通路的上游侧空气通路分隔成第一和第二副通路。 热流量传感器附接到面向第一子通道的分离器。 凸缘形成在限定第二子通道的外管的内壁上。 凸起朝向分隔件突出。 第二副通路的最小流路面积S2小于第一副通路的最小流路面积S1，第二副通路的流路损失大于第一副通路的流路损失。 因此，将气流脉动时的测定气流量平均值校正为较大。

公开(公告)号：US08909486B2

公开(公告)日：2014-12-09

申请号：US13280625

申请日：2011-10-25

申请人： Yasushi Kohno ,  Takao Ban ,  Akitoshi Mizutani

发明人： Yasushi Kohno ,  Takao Ban ,  Akitoshi Mizutani

IPC分类号： G01F1/696 ,  F02D41/18 ,  F02D41/28 ,  G01F1/684 ,  G01F1/72

CPC分类号： F02D41/18 ,  F02D41/28 ,  F02D2041/286 ,  F02D2041/288 ,  G01F1/6842 ,  G01F1/696 ,  G01F1/72

摘要： A flow measuring device includes a flow rate detecting part, an analog/digital conversion part, and a signal processing part. The flow rate detecting part detects a flow rate of air flowing through the passage, and outputs a flow voltage signal, which is a voltage in accordance with the flow rate. The analog/digital conversion part converts the flow voltage signal from the flow rate detecting part into digital data, which is flow digital data. The signal processing part performs calculation processing upon the flow digital data, which includes averaging of a predetermined number of consecutive pieces of the flow digital data, and outputs the averaged flow digital data as a flow rate signal. The predetermined number is equal to or larger than two.

摘要翻译： 流量测量装置包括流量检测部分，模拟/数字转换部分和信号处理部分。 流量检测部检测流过通路的空气的流量，并输出作为与流量对应的电压的流量电压信号。 模拟/数字转换部分将来自流量检测部分的流量电压信号转换成数字数据，这是流量数字数据。 信号处理部分对流数字数据执行计算处理，其包括预定数量的连续的流数字数据的平均值，并将平均流量数字数据作为流量信号输出。 预定数量等于或大于2。

公开(公告)号：US20110271768A1

公开(公告)日：2011-11-10

申请号：US13100426

申请日：2011-05-04

申请人： Akitoshi MIZUTANI ,  Takao Ban

发明人： Akitoshi MIZUTANI ,  Takao Ban

IPC分类号： G01F1/56

CPC分类号： G01F1/6965 ,  H03M1/1038 ,  H03M1/12

摘要： An air flow measurement apparatus includes an air flow sensor for outputting an air flow signal indicative of detected air flow, a reference voltage generator for outputting reference voltage signals, a multiplexer for sequentially selecting the signals in a predetermined order, an A/D converter for converting the signals into digital data in an order selected by the multiplexer, and a signal processing unit for applying correction processing to air flow voltage data corresponding to the air flow signal using reference voltage data corresponding to the reference voltage signals. The signal processing unit has a sampling timing setting section for determining sampling timings at which the A/D converter samples the signals in such a manner that the sampling timing at which the air flow signal is sampled is interposed between the sampling timings at which successive two of the reference voltage signals are sampled.

摘要翻译： 气流测量装置包括用于输出表示检测到的气流的气流信号的气流传感器，用于输出参考电压信号的参考电压发生器，用于按预定顺序顺序选择信号的多路复用器，用于 以多路转换器选择的顺序将信号转换成数字数据;以及信号处理单元，用于使用对应于参考电压信号的参考电压数据对与空气流动信号相对应的气流电压数据进行校正处理。 信号处理单元具有采样定时设定部，用于确定A / D转换器对采样信号进行采样的采样定时，该采样定时以采样时刻的采样定时插入在采样定时之间， 的参考电压信号被采样。