Experimental study of influence of grille relative angle on automobile thermal air flowmeter performance

被引：0

作者：

Yao, Xi-Gui ^{[1
]}

Yao, Huan-Xin ^{[1
]}

机构：

[1] Ningbo University of Technology, Ningbo 315000, China

来源：

Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | 2014年 / 35卷 / 02期

关键词：

Flowmeters - Integrated circuits - Timing circuits - Flow measurement - Economic and social effects - Flow rate;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A automobile thermal air flowmeter performance test platform was constructed to study a certain domestic thermal air flowmeter analyzing influence of the relative angle between grille and metal wire on its flow rate and test accuracy. It is revealed that the grille relative angle is one of the key structural parameters influencing them. In different fan speeds, air flow rates reach maximum at the grille relative angles of 0°, 90°, 180° and 270°, but test accuracy is not highest; in different fan speeds, the grille relative angle for highest test precision changes in a certain range, when setting the grille relative angle in range of 13°~17°, trade-off between air flow rate and test accuracy can be obtained, ensuring both highe test precision and larger flow rate in the same time.

引用

页码：75 / 79