CENTRIFUGAL WHEEL

摘要

A centrifugal compressor wheel including a metal hub ( 2 ) for connecting to a drive shaft ( 3 ), an inlet plate ( 4 ) and an outlet plate ( 5 ) fixed to the metal hub ( 2 ), and a plurality of blades ( 7 ), each blade having a beginning and a peripheral portion ( 7 b), fixed between the inner plate ( 4 ) and the outer plate ( 5 ). The wheel further includes an annular metal insert ( 8 ) integrated in the central portion of the wheel at a periphery of the hub ( 2 ), the annular metal insert ( 8 ) having metal elements ( 7 A) forming the beginnings of the blades of the wheel. The inlet plate ( 4 ), the outlet plate ( 5 ), and the peripheral portions ( 7 B) of the blades are made of a composite material, thereby constituting a composite portion of the wheel.