| 摘要 |
PROBLEM TO BE SOLVED: To provide a propeller fan capable of reducing fluid discomfort sent off from the fan, a fluid feeding device having the propeller fan, and a molding die used for fabricating the propeller fan.SOLUTION: A propeller fan comprises: a boss hub part 41 rotating about a virtual central axis 101; and a blade 21 extending from the boss hub part 41 radially outwardly of the central axis 101. The blade 21 includes: a front edge part 22 disposed on the side in the rotation direction; a rear edge part 24 disposed on the opposite side in the rotation direction; and an outer edge part 23 extending in a circumferential direction of the central axis 101 to connect between the front edge part 22 and the rear edge part 24. Assuming a plane 107 orthogonal to the central axis on the jet side of the blade 21 and assuming the length in the axial direction of the central axis 101 from the plane 107 to be the height, the rear edge part 24 is centered on the central axis 101 and has a height which increases as it approaches the outer edge part 23 on the outer peripheral side.SELECTED DRAWING: Figure 6 |
