Patent ID: 8272930
Filing Date: 2012-09-25
Classification: B64D,Y02T

Abstract:
1. An air system for pressurizing and air conditioning a cockpit and cabin space of a plane, comprising: a compressor for compressing an air mass flow, a main heat exchanger arranged in a first ram air duct; at least first and second zone heat exchangers arranged in a second air duct; wherein the air mass flow to be compressed is extracted through the first ram air duct from the environment of the plane and supplied through the main heat exchanger to at least one zone of the plane to be pressurized and air conditioned; wherein at least first and second zones of the at least one zone with different temperature demands are assigned to first and second zone heat exchangers, respectively, in order to output additional air at the same or separate temperatures, corresponding to the temperature demands, into the respective first and second zones; and wherein the first and second zone heat exchangers are located in the second ram air duct for cooling the additional air to the first and second zones through outside air to requested injection temperatures for the first and second zones.