公开(公告)号：US06237426B1

公开(公告)日：2001-05-29

申请号：US09248898

申请日：1999-02-12

申请人： Bogna Gryc ,  Alfred Theodor Dyck ,  Kenneth George Lenton

发明人： Bogna Gryc ,  Alfred Theodor Dyck ,  Kenneth George Lenton

IPC分类号： G01F146

CPC分类号： G01F1/46

摘要： An multi-point, center-averaging airflow sensor comprises a plurality of upstream airflow sensing tubes extending radially from a central hub having a total pressure averaging chamber and a static pressure averaging chamber. The airflow sensing tubes are each provided with at least one total pressure port located inwardly of the outer end of the tubes to minimize error caused by total pressure measurements taken near the inner walls of the conduit in which the sensor is installed. The sensor has static pressure ports located in the side surface of the hub which are shielded from upstream air flow by the tubes and which are preferably at least partially shielded from damper back pressure by notched reinforcing blades provided along the length of the airflow sensing tubes.

摘要翻译： 多点中心平均气流传感器包括从具有总压力平均室和静压平均室的中心毂径向延伸的多个上游气流感测管。 气流感测管每个设置有至少一个位于管的外端内部的总压力端口，以最小化由安装传感器的管道的内壁附近的总压力测量引起的误差。 传感器具有位于毂的侧表面中的静压力端口，其通过管屏蔽上游空气流，并且优选地通过沿气流感测管的长度设置的缺口加强刀片至少部分地与阻尼器背压屏蔽。