| 摘要 |
<p>A dispersion plate (21) is characterized by including: a cylindrical body (22); a plurality of blades (23) provided along a circumferential direction of the cylindrical body (22), the plurality of blades (23) being extended from an outer circumference of the cylindrical body (22) to a center of the cylindrical body (22), so as to form a passage opening (25) surrounded by tips (23a) of the plurality of blades (23), the passage opening (25) being provided in the center of the cylindrical body (22); and a shielding plate (26, 27, 28) provided so as to be distanced from the plurality of blades 23 in an axial direction of the cylindrical body (22), the shielding plate (26, 27, 28) covering the passage opening (25).</p> |
