Aircraft air-conditioning system having a two-stage cooling circuit and aircraft having an air-conditioning system

Abstract

In an aircraft air-conditioning system and corresponding aircraft, ambient air is cooled by a cooling system having a first cooling circuit and a second cooling circuit thermally coupled to one another via a common heat exchanger. An ambient air inlet receives an unpressurised ambient air. The cooling system cools a refrigerant. An ambient air heat exchanger cools the ambient air. The first cooling circuit cools a first refrigerant. The second cooling circuit cools a second refrigerant. The common heat exchanger thermally couples the first and second refrigerant. The ambient air heat exchanger thermally couples the second refrigerant with the ambient air

Dependencies are inferred from the claim text.