BLOWER WITH CURVED BLADES

摘要

A centrifugal blower assembly comprises a scroll housing including a fluid inlet and a spaced apart fluid outlet. An impeller is disposed in the scroll housing and includes a plurality of spaced apart blades arranged annularly around an axis of rotation of the impeller. A portion of each blade adjacent the fluid inlet is spaced apart from the axis of rotation of the impeller a greater distance than a portion of each blade coupled to a hub opposite the fluid inlet. Each of the blades includes a leading edge that is slanted or curved in a radial direction away from the axis of the rotation of the impeller, causing each of the blades to have a more equal distribution of pressure along a length of each of the blades when the impeller is rotated at a constant speed.

主权项

1. A centrifugal blower assembly comprising:
a scroll housing including a fluid inlet and a spaced apart fluid outlet; and an impeller disposed in the scroll housing, the impeller including a plurality of spaced apart blades arranged annularly around an axis of rotation of the impeller, wherein each blade includes a first end spaced apart from the fluid inlet and a second end adjacent the fluid inlet and the second end of each blade is spaced apart from the axis of rotation of the impeller a greater distance than the first end of each blade.