公开(公告)号：US5209113A

公开(公告)日：1993-05-11

申请号：US692392

申请日：1991-04-25

申请人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Takao Ban ,  Norihide Hattori

发明人： Yukio Sawada ,  Yukio Mori ,  Ryo Nagasaka ,  Takao Ban ,  Norihide Hattori

IPC分类号： F02D41/18 ,  G01F1/684 ,  G01F5/00

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

摘要： An air flow meter has a cylindrical housing to be coupled to an intake air conduit of a vehicle in a way that a main passage is formed within said housing. An egg-shaped member has a bypass passage formed therein is supported by a plurality of supporting members in a center of the main passage. A flow rate detecting resistance is provided in the bypass passage. There are two throttling portions formed within the cylindrical housing. A downstream throttling portion, which is provided near an outlet of the bypass passage, throttles a flow of air in the main passage near the outlet of the bypass passage so as to cause air in the main passage to be introduced into the inlet of bypass passage by a pressure difference caused thereby. An upstream throttling portion, which is provided upstream of the downstream throttling portion, throttles a flow of air in the main passage so that the flow of air in the main passage is equalized.

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：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：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：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：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。

公开(公告)号：US20060170419A1

公开(公告)日：2006-08-03

申请号：US11341537

申请日：2006-01-30

申请人： Osamu Shimomura ,  Tsutomu Nakamura ,  Kenji Takeda ,  Takashi Kawashima ,  Tatsuya Kitanaka ,  Koichiro Matsumoto ,  Takao Ban

发明人： Osamu Shimomura ,  Tsutomu Nakamura ,  Kenji Takeda ,  Takashi Kawashima ,  Tatsuya Kitanaka ,  Koichiro Matsumoto ,  Takao Ban

IPC分类号： G01B7/30

CPC分类号： G01D5/24438 ,  G01D5/145

摘要： A rotation angle detector for detecting change in the magnetic flux has a magnetic sensor being disposed at a position in a space between an outer surface of a shaft and a periphery of the magnetic flux generation means. A supplementary magnet is also used in a space that is enclosed in a circular trace of the magnetic sensor around the shaft for even distribution of the magnetic flux generated by the magnetic flux generation means.

摘要翻译： 用于检测磁通量变化的旋转角检测器具有磁传感器，该磁传感器设置在轴的外表面和磁通量产生装置的周边之间的空间中的位置。 辅助磁体也用于围绕轴围绕在磁传感器的圆形轨迹中的空间，以便均匀分布由磁通量产生装置产生的磁通量。

公开(公告)号：US07034525B2

公开(公告)日：2006-04-25

申请号：US10861449

申请日：2004-06-07

申请人： Akitoshi Mizutani ,  Takao Ban

发明人： Akitoshi Mizutani ,  Takao Ban

IPC分类号： G01B7/30

CPC分类号： G01D5/142

摘要： In a rotational angle detecting device, an auxiliary magnet is disposed so as to surround a Hall element around the Z-axis, so that variation of offset magnetic flux is suppressed even when the position of the Hall element is displaced in the X-axis direction with respect to the auxiliary magnet. In addition, even when the fabrication position of the Hall element is displaced in the Y-axis direction of the auxiliary magnet, the variation of the offset magnetic flux is suppressed. By adjusting the dimension (the length in cylinder direction) in the Z-axis direction of the auxiliary magnet, the variation of the offset magnetic flux is suppressed even when the Hall element is displaced from the center of the auxiliary magnet in the Z-axis direction. That is, even when the position of the Hall element is displaced from the center of the auxiliary magnet in the three-dimensional direction, the displacement of the offset magnetic flux can be prevented, and thus reduction of the detection precision can be prevented.

摘要翻译： 在旋转角度检测装置中，以围绕Z轴的方式围绕霍尔元件设置辅助磁体，即使当霍尔元件的位置在X轴方向上位移时，偏移磁通的变化被抑制 相对于辅助磁体。 此外，即使当霍尔元件的制造位置在辅助磁体的Y轴方向上移位时，偏移磁通的变化被抑制。 通过调整辅助磁体的Z轴方向的尺寸（气缸方向的长度），即使当霍尔元件从Z轴的辅助磁体的中心位移时，也抑制偏移磁通的变化 方向。 也就是说，即使当霍尔元件的位置在三维方向上从辅助磁体的中心偏离时，也可以防止偏移磁通的位移，从而可以防止检测精度的降低。

公开(公告)号：US09383240B2

公开(公告)日：2016-07-05

申请号：US13615792

申请日：2012-09-14

申请人： Yasushi Kohno ,  Takao Ban

发明人： Yasushi Kohno ,  Takao Ban

IPC分类号： G01M15/04 ,  G01F1/684 ,  G01F1/698 ,  G01F5/00

CPC分类号： G01F1/6845 ,  G01F1/6983 ,  G01F5/00

摘要： A thermal-type air flow measuring device includes a heat generation heater and a sensor circuit. The heat generation heater is configured to heat a part of intake air drawn into an engine by heat generation upon energization of the heat generation heater. The sensor circuit is configured to at least control the energization of the heat generation heater and to make temperature of the heat generation heater higher than temperature of the heat generation heater at time of the measurement of the flow rate of air when an external signal is inputted into the sensor circuit from outside of the device.

摘要翻译： 热式气流测量装置包括发热加热器和传感器电路。 发热加热器构造成通过在发热加热器通电时通过发热而加热被吸入发动机的进气的一部分。 传感器电路被配置为至少控制发热加热器的通电，并且当输入外部信号时测量空气流量时，使发热加热器的温度高于发热加热器的温度 从设备外部进入传感器电路。

公开(公告)号：US20080236274A1

公开(公告)日：2008-10-02

申请号：US12078110

申请日：2008-03-27

申请人： Yasushi kohno ,  Takao Ban

发明人： Yasushi kohno ,  Takao Ban

IPC分类号： G01F1/692

CPC分类号： G01F1/6842 ,  G01F5/00

摘要： An airflow measuring device includes a sensing portion provided in a bypass passage, which perpendicularly deflects part of air from a main passage to therethrough bypass the part of air. The sensing portion includes a heating resistor energized and dissipate heat to airflow. The sensing portion is configured to measure airflow in the bypass passage based on the heat radiation. The sensing portion further includes a pair of support members erected in the bypass passage to support the heating resistor. The heating resistor of the sensing portion is inclined at a first inclination angle with respect to a direction, which is perpendicular to a flow direction of air in the bypass passage. The heating resistor is inclined toward downstream at an outer streamline of the airflow in the bypass passage.

摘要翻译： 气流测量装置包括设置在旁通通道中的感测部分，其将空气的一部分从主通道垂直地偏转到旁路部分空气。 感测部分包括加热电阻器，并且将热量散发到气流中。 感测部分被配置成基于热辐射来测量旁路通道中的气流。 检测部分还包括竖立在旁路通道中以支撑加热电阻器的一对支撑构件。 感测部分的加热电阻器相对于垂直于旁路通道中的空气的流动方向的第一倾斜角倾斜。 加热电阻器在旁路通道中的气流的外流线处向下游倾斜。