| 摘要 |
The blower wheel is provided with a fixed guide. In the tubular casing (1) are fixed a disc-shaped inflow nozzle (3), with a circular opening in the area of the motor shaft (4), and an electric motor (2). It has a closed blower wheel with a rearside disc provided with a plate-shaped edge (9), a flat front cover disc (11) with a smaller diameter than the rearside disc and blades (12) between the discs. Within the casing is a deflecting disc (15), the diameter of which is smaller than that of the rearside disc (10) and which has a ring-shaped gap (14) narrowing the flow path on the inside of the tubular casing. The electric motor is arranged in the flow direction in front of the other parts in the tubular casing. |
