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：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：US5544527A

公开(公告)日：1996-08-13

申请号：US363006

申请日：1994-12-23

申请人： Noboru Kitahara ,  Minoru Kondo ,  Yukio Sawada

发明人： Noboru Kitahara ,  Minoru Kondo ,  Yukio Sawada

IPC分类号： G01F1/68 ,  G01F1/684 ,  G01F5/00 ,  G01P5/12

CPC分类号： G01P5/12 ,  G01F1/6842 ,  G01F5/00

摘要： A flow meter includes a tubular member having a main passage in which fluid flows. A branch passage member disposed in the main passage has a branch passage in which the fluid flows. A support member connects the branch passage member and a wall of the tubular member, and supports the branch passage member within the main passage. A partition arrangement disposed in the branch passage divides the branch passage into a plurality of sub passages extending along a flow of the fluid. A flow-rate measuring resistor is disposed in a region of the branch passage downstream of the partition arrangement for sensing a rate of a flow of the fluid in the branch passage. A control circuit electrically connected to the flow-rate measuring resistor is operative for calculating a measurement value from an output signal of the flow-rate measuring resistor. An outlet formed in the branch passage member is operative for connecting the branch passage with the main passage to enable the fluid to move from the branch passage into the main passage after the fluid meets the flow-rate measuring resistor. The partition arrangement includes a partition plate. A length of a part of the partition plate, measured along a direction of the fluid flow, depends on a position of the part.

摘要翻译： 流量计包括具有流体流动的主通道的管状构件。 设置在主通道中的分支通道构件具有流体流动的分支通道。 支撑构件连接分支通道构件和管状构件的壁，并且在主通道内支撑分支通道构件。 设置在分支通道中的分隔装置将分支通道分成沿着流体流延伸的多个子通道。 流量测量电阻器设置在分支通道下游的分支通道的区域中，用于感测分支通道中流体的流动速率。 与流量测量电阻器电连接的控制电路用于根据流量测量电阻器的输出信号计算测量值。 在分支通道构件中形成的出口用于将分支通道与主通道相连接，以使流体在流体与流量测量电阻器相遇之后能够从分支通道移动到主通道中。 分隔装置包括隔板。 沿着流体流动的方向测量的隔板的一部分的长度取决于部件的位置。

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：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：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：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：US07178388B2

公开(公告)日：2007-02-20

申请号：US11151642

申请日：2005-06-14

申请人： Yasuo Okuda ,  Masakazu Yamada ,  Satoshi Furukawa ,  Minoru Kondo ,  Noboru Kitahara ,  Shigeru Kamio ,  Harufumi Muto

发明人： Yasuo Okuda ,  Masakazu Yamada ,  Satoshi Furukawa ,  Minoru Kondo ,  Noboru Kitahara ,  Shigeru Kamio ,  Harufumi Muto

IPC分类号： G01M15/00

CPC分类号： G01F5/00 ,  G01F1/6842 ,  G01F1/696 ,  G01F1/6965 ,  G01F1/72

摘要： An intake air flow detecting device is provided to an intake air passage, through which intake air flows into an internal combustion engine. Intake air flow is divided into a main passage and a bypass passage. The detecting device includes a thermal air flowmeter, a bypass flow delay information calculating means, and a response delay compensating means. The thermal air flowmeter includes a detector arranged in the bypass passage for detecting an air flow amount in the intake air passage. The bypass flow delay information calculating means calculates a bypass flow delay information representing delay in variation in a flow amount in the bypass passage with respect to variation in a flow amount in the main passage. The response delay compensating means compensates delay in response of the air flowmeter in accordance with the bypass flow delay information.

摘要翻译： 进气流量检测装置设置在进气通道内，进气通过该进气通道流入内燃机。 进气流分为主通道和旁路通道。 检测装置包括热空气流量计，旁路流量延迟信息计算装置和响应延迟补偿装置。 热空气流量计包括布置在旁路通道中用于检测进气通道中的空气流量的检测器。 旁路流量延迟信息计算装置计算旁路流量延迟信息，其表示相对于主通道中的流量的变化，旁通通道中的流量的变化的延迟。 响应延迟补偿装置根据旁路流量延迟信息补偿空气流量计的响应延迟。