Rotary fan with encapsulated motor assembly

Details Rotary fan with encapsulated motor assembly Rotary fan with encapsulated motor assembly

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 17/00 (2006.01) F04B 35/04 (2006.01)

Patent

CA 2648432

A fan assembly, such as a rotary axial fan assembly, is disclosed with a shroud that is adapted to be mounted proximate to a heat exchanger. The shroud is sized for conveying a flow of fluid through the heat exchanger and the shroud. A stator fan blade extends inward from the shroud for supporting a hub generally central within the shroud. A motor stator is encapsulated within the hub for receiving a fan rotor and fan blades for forcing the flow of fluid through the heat exchanger and the shroud. The hub may be formed from a thermally conductive material for transferring heat from the motor stator into the flow of fluid for dissipating the heat.

L'invention porte sur un ventilateur de type axial dont le carénage, conçu pour se monter au voisinage d'un échangeur de chaleur, a une taille permettant de faire passer un flux d'air de refroidissement à travers l'échangeur et le carénage. Une ailette liée au stator et s'étendant vers l'intérieur depuis le carénage porte le moyeu sensiblement centré dans le carénage. Le stator du moteur, encapsulé dans le moyeu, reçoit le rotor auquel sont fixées les pales du ventilateur. Le moyeu peut être fait d'un matériau thermoconducteur permettant de transférer la chaleur du stator dans le flux d'air de refroidissement.

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