Fan blade reinforcement plate

Details Fan blade reinforcement plate Fan blade reinforcement plate

F - Mech Eng,Light,Heat,Weapons

04

D

230/20

F04D 29/34 (2006.01) F04D 29/38 (2006.01)

Patent

CA 1161002

FAN BLADE REINFORCEMENT PLATE ABSTRACT OF THE DISCLOSURE A cooling fan for an automotive vehicle includes a spider having arms projecting from a hub. Rivets attach blades and reinforcing plates to each of the arms, and each of the rivets extends through the reinforcing plate, the blade, and the corresponding arm. Each blade has a depressed portion defining a rim circumscribing the depressed portion, and the corresponding plates have a depression defining a flange which is adapted to engage the rim when the blade is installed on its corresponding arm. The contour of the plate is different from the contour of the blade, but the rivet forces the plate to assume the contour of the blade when the plate and the blade are installed on the arm. Accordingly, the plate is preloaded to thereby transmit bending forces to the rim which would normally be taken by the portion of the blade adjacent the rivet.

344729

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