Fan device for use in storage room for foods has recess forming part of flow connection between area where rotary drive is arranged and fan space

摘要

A blower wheel (2) is fitted into a recess (21) through an adjuster (13). A rotary drive (4) is connected to the blower wheel through a drive shaft (3). The recess forms a part of a flow connection (S) between a fan space (7) and an area (8) where the rotary drive is positioned.