| 摘要 |
A fan impeller (100) is part of a fan assembly designed to maximize both intake and expelled air during use. The fan impeller (100) employs a distinct airfoil shape for the fan blades (10) to substantially move the ambient air. A low constant blade angle and overlapping blades are employed to improve the blade lift and consequent mass flow and exit pressure. The blade stall is eliminated, as evidenced by a smoothened fan curve, for more efficient operation. The blade sweep angle (16) is optimally arranged to control radial flow characteristics of the ambient air. Housing sidewalls are removed from the fan assembly to remove parasitic drag and improve the motion of air passing through the fan. |
