Patent ID: 8123460

Claim:
An unmanned aerial vehicle (UAV) comprising: at least one duct, comprising: an inside duct wall, an outside duct wall, wherein the outside duct wall has a curved profile, wherein the outside duct wall contacts the inside duct wall to form an area between the inside duct wall and the outside duct wall, and wherein the area is at least partially enclosed and houses heat-generating equipment, at least one fan shaft; a plurality of fan blades, wherein the plurality of fan blades cause an airflow to flow in a direction substantially parallel to the inside duct wall; a plurality of stators, wherein the plurality of stators hold the at least one duct fixed in relation to the at least one fan shaft; a fan motor, wherein the fan motor rotates the plurality of fan blades around the at least one fan shaft; and a cooling mechanism at the inside duct wall for utilizing the airflow from the plurality of fan blades to cool the heat-generating equipment.