| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an air flowmeter capable of reducing a disturbance of air generated as part of air flowing in a bypass channel 5 flows backward to a sub-bypass channel 6. <P>SOLUTION: In a channel formation body, a bypass channel 5 in which part of air sucked in an engine is taken in and a sub-bypass channel 6 in which part of the air flowing in the bypass channel 5 is taken are formed, and in the sub-bypass channel 6, a chip type sensor part is arranged. At an intake 6a of the sub-bypass channel 6, a straightening plate 14 is arranged which straightens the direction of a forward flow and the direction of a backflow. Since the straightening plate 14 forms a passage of the forward flow and a passage of the backflow at the intake 6a of the sub-bypass channel 6, a disturbance due to a collision between the forward flow and backflow is reducible and detection precision of the sensor part becomes stable. <P>COPYRIGHT: (C)2013,JPO&INPIT |
