Inlet nozzle for radial fan, has fastening unit and inlet area with inlet opening, where outlet area is connected at inlet area, and wall of outlet area has three wall sections in flow direction of air

摘要

The inlet nozzle (1) has a fastening unit (7) and an inlet area with an inlet opening (9). An outlet area is connected at inlet area. A wall of the outlet area has three wall sections (19,20) in a flow direction of the air. The wall sections are formed one behind the other. The wall sections are connected to one another by an edge running through the circumference of the wall sections. The edges rest in the radial planes of the inlet nozzle.