CENTRIFUGAL IMPELLER AND AIR CLEANER

摘要

PROBLEM TO BE SOLVED: To provide a centrifugal impeller capable of preventing decrease in impeller efficiency and increase in noise even when a treating capacity is increased. SOLUTION: Them outlet angle of an impeller is inclined from about 40 degrees to about 60 degrees in the rotating direction of the impeller in the position about 1/2 to about 1/3 of the impeller length from the outlet side of the impeller.