Abstract: A cooling system is disclosed for a pod (20) of an aircraft. The cooling system includes an air circulation loop (28) for supplying cooled air to an air input (32) of the pod to cool a load disposed in the pod and for receiving air discharged from an air discharge (34, 35) to the pod which has absorbed heat from the pod. A cooling apparatus (30) is disposed in the loop which is activated to cool air flowing in the loop prior to application to the pod. A fan (48) is located in the air circulation loop between the cooling apparatus and the air discharge (35) which is activated to blow discharged air toward the cooling apparatus when the aircraft is operated in a first portion of the flight envelope. A ram air supply (44) supplies ram air in response to flight of the aircraft.

Abstract: The scavenge oil system disclosing the invention has a scavenge oil outlet located at the bottom of a blower housing whereby lubricating oil can flow thereto by gravity in most attitudinal positions of the housing. When the blower housing is in an attitude that a portion thereof, such as the rear, is at a level lower than the scavenge oil outlet, a scavenge pump, having an impeller driven by the blower shaft, is rendered effectively operable by having an inlet beneath the level of oil at the rear of the housing and the scavenge pump pumps the oil to a higher level whereby it may flow from the housing by gravity through either the scavenge oil outlet of the housing or through other passages.

Abstract: The scavenge oil system disclosing the invention has a scavenge oil outlet located at the bottom of a blower housing whereby lubricating oil can flow thereto by gravity in most attitudinal positions of the housing. When the blower housing is in an attitude that a portion thereof, such as the rear, is at a level lower than the scavenge oil outlet, a scavenge pump, having an impeller driven by the blower shaft, is rendered effectively operable by having an inlet beneath the level of oil at the rear of the housing and the scavenge pump pumps the oil to a higher level whereby it may flow from the housing by gravity through either the scavenge oil outlet of the housing or through other passages.