Blower wheel for cooling e.g. internal combustion engine, has blades connected with tubular section, and opening provided in base and makes possible pressure balance between outer side and inner side of base

摘要

The wheel (1) has a base (3) mounting the wheel in a drive shaft (8), and a tubular section (4) attached to the base. Two blower wheel blades (2) are connected with the tubular section and outwardly extend towards the tubular section. An opening (5) is provided in the base and makes possible pressure balance between an outer side of the base and an inner side of the base, where the inner side of the base faces a blower engine.