System for determining air-mass flow in suction duct of internal combustion engine with flow sensor

摘要

The system consists of a section duct section housing, in which on a carrier (3) in the direction of flow, are arranged successively a temperature measuring element (4) and a first thermal flow sensor (5). A second flow sensor (7) is arranged in the flow direction, parallel to the first flow sensor. Both sensors have a common pole, which is contacted by a conducting path (9), connected with the carrier. The second flow sensor projects through an opening in a partition wall (12), standing inclined in the centre of the suction duct (11). One flow sensor (5,7) is located at both sides of the partition wall.