LOW-NOISE BLOWER

摘要

A low-noise blower has an impeller with an impeller plate and a plurality of blades each attached to the impeller plate. Each blade has a tip and a leading surface with a first portion that is proximate to the tip and has a first radius that is within a range of 0.03-0.20 inch.

主权项

1. A blower comprising:
an impeller comprising:
an impeller plate; anda plurality of blades each attached to the impeller plate and comprising a tip and a leading surface that comprises a first portion proximate to the tip, the first portion having a first radius that is within a range of 0.03-0.20 inch.