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Parts and function
4.1 Overview
Fig. 16: Structure of the axial fan
1
Extension duct (accessories)
2
Duct casing
3
Flange
4
Bellmouth
5
Cover grille
6
Impeller hub
7
Impeller blade
8
Flange holes
9
Outlet guide vanes (AXN)
10
Electric motor
11
Threaded pipe
12
Mounting foot
4.2 Brief description
Due to the rotating impeller (Fig. 16 /6+7), the axial fan
intakes air via the bellmouth (Fig. 16 /4) or from a pipe
on the intake side and conveys it to the outlet side in an
axial direction via the electric motor (Fig. 16 /10). The
airflow cools the electric motor. The axial fan is part of a
ventilation system. No operations are executed on the
axial fan.
4.3 Description of the sub-assembly
4.3.1 Casing
The casing for axial fans comprises a duct casing and a
motor block. The casing can optionally comprise outlet
guide vanes and a motor mount.
Outlet guide vanes
The axial fan is optionally equipped with outlet guide
vanes to achieve uniform air distribution downstream of
the impeller within a pipework system.
Parts and function
Description of the sub-assembly > Casing
Axial fans AXO/BVAXO; AXN/BVAXN; ZAXN/BVZAXN
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