Patent ID: 7845188

Claim:
A system for the preparation of compressed air onboard an aircraft, said system comprising at least one compressed air source; a system heat exchanger which is in communication with the at least one compressed air source on an inlet side thereof and which is also in communication, on an outlet side thereof, with a separate onboard gas generating system to be supplied with cooled compressed air which has passed through the system heat exchanger; and at least one air conditioning system heat exchanger which is in communication with the at least one compressed air source on an inlet side thereof and which is in communication, on an outlet side thereof, with additional components of an aircraft air conditioning system to be supplied with cooled compressed air which has passed through the at least one air conditioning system heat exchanger, wherein the system heat exchanger and the at least one air conditioning system heat exchanger have a common inlet ( 10 ) for being supplied with ram air or environmental air; and the system heat exchanger is connected on its outlet side which provides cooled compressed air which has passed through the system heat exchanger, via a closable line ( 20 ) to either a line in communication with the at least one air conditioning system heat exchanger or the at least one air conditioning system heat exchanger itself.