| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an axial flow blower which can keep load of a generator low even if a blowing amount is increased by raising the number of rotation. SOLUTION: In this axial flow blower with a plurality of blades 12 integrally formed around a hub 11, at a corner part where a blade rear edge part 21 which is an air outflow part during rotation crosses a blade outer circumference part 22, an expanded part 23 expanding in the protruding state in the air outflow direction is formed, and the expansion part is formed within the range of 0.6R to R where a radius from the center of a rotation shaft to the outermost circumference of the blade is R.</p> |
