| 摘要 |
An axial blower (1) includes: a housing (2) including a wind tunnel (19); an impeller (3) that is disposed in the wind tunnel and includes a plurality of blades (12); and a motor (4) that includes a rotation shaft (5) and is secured to the housing (2), the impeller (3) being secured to the rotation shaft. When an angle between a chord of the blade (12) at a cross-sectional surface of the blade cut by a virtual cylindrical surface centering the rotation shaft (5), and a surface perpendicular to the rotation shaft is defined as a mounting angle, the blade (12) includes an intermediate part (A2) between an inside diameter side part and an outside diameter side part of the blade (12), and this intermediate part (A2) has a mounting angle equal to or larger than a mounting angle of the inside diameter side part (A1), and larger than a mounting angle of the outside diameter side part (A3). |
