Radial fan comprises spiral housing, in which blower wheel is accommodated, where geometric center point of surface of inflow opening is shifted according to rotational axis of blower wheel in area

摘要

The radial fan comprises a spiral housing (10), in which a blower wheel is accommodated. A geometric center point of a surface of an inflow opening (16) is shifted according to the rotational axis (18) of the blower wheel in an area. The geometric center point is precisely defined by passing through the rotational axis of the blower wheel.