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：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。