Patent ID: 7585159
Filing Date: 2009-09-08
Classification: F01D,F04D,H02K

Abstract:
1. An automotive engine-cooling fan assembly, comprising a motor having a driveshaft defining a central axis, and a fan driven by the motor, said fan comprising a plurality of generally radially-extending blades, and a hub, said hub comprising a generally radially-extending face portion defined along the entire radial extent of the hub; an axially-extending cylindrical portion; and ribs; said cylindrical portion being coupled to said blades; characterized in that said face portion is coupled directly, or through an adapter, to the driveshaft; and each of said ribs has a portion which extends radially along said face portion and a portion which extends axially along said cylindrical portion, said radially-extending portion of each of said ribs including a first edge in facing relationship with said motor and a second edge opposite said first edge and facing away from said motor, wherein said second edge of each of said ribs is unattached to said face portion.