Patent ID: 6928963
Filing Date: 2005-08-16
Classification: F01P,F04D

Abstract:
1. A low drag fan assembly adapted to be mounted within a ducting conduit of ram air induction system of a vehicle for cooling a heat exchanger, said low drag fan assembly comprising: a motor having an output drive; a motor bracketing system attached to said motor for suspending said motor within the ducting conduit of the ram air induction system; a fan hub attached to said output drive; a plurality of foldable fan blades hingedly attached to an outer perimeter of said fan hub; wherein when said motor is not activated, said plurality of fan blades are folded back in a non-deployed state which is in a generally longitudinally congruent orientation with respect to the ducting conduit of the ram air induction system; wherein when said motor is activated, said plurality of fan blades extend to a deployed state in which said plurality of blades are transversely oriented and positioned normal to the air flow path direction of the ducting conduit of the ram air induction system.