AIRCRAFT ENVIRONMENTAL CONTROL SYSTEM AIR DUCT ARRANGEMENT

摘要

An air duct arrangement (58) for an aircraft (40). The arrangement (58) comprises an environmental control system (ECS) (50). The ECS (50) comprises an air inlet (60) arranged to ingest a low velocity portion of a boundary layer flow adjacent the aircraft fuselage (44), and to deliver a flow of air to an environmental control system air intake (66). The arrangement (58) further comprises an ejector (70) arranged to receive an ECS exhaust (76), and boundary layer air from an aft region of the aircraft (40), and to exhaust air to the ambient airstream at an aft portion of the aircraft (40).

主权项

1. An air duct arrangement for an aircraft, the arrangement comprising;
an environmental control system air inlet arranged to ingest a low velocity portion of a boundary layer flow adjacent an aircraft external surface, and to deliver a flow of air to an environmental control system air intake; and an ejector arranged to receive an environmental control system exhaust and boundary layer air from an aft region of the aircraft, and to exhaust air from an ejector exhaust to the ambient airstream at an aft portion of the aircraft.