초록 ▼

A method and a system for the preparation of compressed air having a heat exchanger (system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with a system or unit on the outlet side on the compressed air side

A method and a system for the preparation of compressed air having a heat exchanger (system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with a system or unit on the outlet side on the compressed air side which is to be supplied with cooled compressed air and including at least one heat exchanger (air conditioning system heat exchanger) which is in communication with a pressure source on the inlet side on the compressed air side and which is in communication with additional components of an aircraft air conditioning system on the outlet side on the compressed air side. Provision is made for the system heat exchanger and the at least one air conditioning system heat exchanger to have a common inlet for supply with ram air or environmental air and for the system heat exchanger to be connected on its outlet side on the compressed air side via a closable line to the line system on the compressed air side in communication with the at least one air conditioning system heat exchanger or to the at least one air conditioning system heat exchanger itself.

대표청구항 ▼

The invention claimed is: 1. 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 co

The invention claimed is: 1. 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. 2. The system in accordance with claim 1, wherein the system heat exchanger is connected on its outlet side supplying cooled compressed air to the inlet of the at least one air conditioning system heat exchanger to be supplied with compressed air or to the outlet of the at least one air conditioning system heat exchanger supplying cooled compressed air via the closable line (20). 3. The system in accordance with claim 1, further comprising in the closable line (20) an open/close valve (22) or a valve by which different throughputs through the line can be set. 4. The system in accordance with claim 1, further comprising a valve (22) wherein the closable line (20) extends between the outlet of the system heat exchanger supplying cooled compressed air and the outlet of the at least one air conditioning system heat exchanger supplying cooled compressed air and wherein a line (30) branches off from this closable line (20) upstream of the valve (22) by which the closable line (20) can be closed, said branch line (30) leading to the separate onboard gas generating system to be supplied with cooled compressed air. 5. The system in accordance with claim 1, wherein a first air conditioning system heat exchanger and second air conditioning system heat exchanger downstream thereof to be supplied with compressed air are provided; and the system heat exchanger is connected on its outlet side for supplying cooled compressed air via the closable line (20) to the inlet to be supplied with compressed air or to the outlet supplying cooled compressed air of the first air conditioning system heat exchanger. 6. The system in accordance with claim 5, further comprising a valve (22) wherein the closable line (20) extends between the outlet of the system heat exchanger supplying cooled compressed air and the outlet of the first air conditioning system heat exchanger supplying cooled compressed air and a line (30) branches off from the closable line (20) upstream of the valve (22) by which the closable line (20) can be closed, said branch line (30) leading to the separate onboard gas generating system to be supplied with cooled compressed air. 7. The system in accordance with claim 1, further comprising a ram air line wherein the system heat exchanger is connected in parallel to the at least one air conditioning system heat exchanger on the ram air line. 8. The system in accordance with claim 1, further comprising a ram air line wherein the system heat exchanger is arranged upstream of a first of the at least one air conditioning system heat exchanger on the ram air line. 9. The system in accordance with claim 1, further comprising a ram air line wherein the system heat exchanger is arranged downstream of a first of the at least one air conditioning system heat exchanger on the ram air line. 10. The system in accordance with claim 1, further comprising a ram air line wherein said at least one air conditioning system heat exchanger includes two or more heat exchangers which are arranged sequentially on the ram air line; and the system heat exchanger is arranged on the ram air line downstream of a first air conditioning system heat exchanger and in parallel to a second air conditioning system heat exchanger. 11. The system in accordance with claim 1, further comprising a ram air line wherein a partition wall (40) is provided in the ram air line such that the ram air supply for the system heat exchanger and the at least one air conditioning system heat exchanger takes place separately (41, 42); and wherein an adjustable ram air inlet flap is provided which, in a closed state, only closes an infeed (42) to the at least one air conditioning system heat exchanger from the ram air line. 12. The system in accordance with claim 1, further including a closeable bypass line wherein the inlet of the system heat exchanger to be supplied with compressed air and outlet for supplying cooled compressed air which leads to the separate onboard gas generating system to be supplied with the cooled compressed air, are in communication with one another via the closable bypass line (50). 13. The system in accordance with claim 1, further including a compressed air bleed system wherein a compressed air supply leading to the inlet of the system heat exchanger to be supplied with compressed air and a compressed air supply (60, 70) leading to the inlet of the air conditioning system heat exchanger(s) to be supplied with compressed air branch off from the compressed air bleed system. 14. The system in accordance with claim 1, further comprising a compressed air supply valve wherein the inlet of the system heat exchanger to be supplied with compressed air is connected to a compressed air supply via the valve. 15. The system in accordance with claim 14, further comprising an inlet valve in the aircraft air conditioning system, wherein the compressed air supply valve is connected in parallel to the inlet valve in the aircraft air conditioning system. 16. The system in accordance with claim 1, further comprising an inlet valve in the aircraft air conditioning system wherein the inlet of the system heat exchanger to be supplied with compressed air is connected to an outlet of the inlet valve in the aircraft air conditioning system. 17. The system in accordance with claim 1, wherein the separate onboard gas generating system with which the system heat exchanger is in communication to be supplied with cooled compressed air is an emergency oxygen supply system and/or a nitrogen generating system. 18. The system in accordance with claim 1, wherein the at least one compressed air source is at least a one-stage compressor. 19. The system in accordance with claim 18, wherein the compressor is a multi-stage compressor driven by a motor. 20. The system in accordance with claim 1, wherein both the system heat exchanger and the at least one air conditioning system heat exchanger are positioned in a common conduit for supplying with ram or environmental air and having a common outlet. 21. The system in accordance with claim 1, wherein both the system heat exchanger and the at least one air conditioning system heat exchanger share a common inlet line (80) for compressed air. 22. A method for the operation of a system for preparation of compressed air onboard an aircraft and having a first system heat exchanger which is in communication with at least one compressed air source on an inlet side thereof and, on an outlet side thereof, with a separate onboard gas generating system to be supplied with cooled compressed air, 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, 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, the method comprising the steps of, in a first operating mode, supplying the compressed air after cooling in the system heat exchanger to the separate onboard gas generating system with which the system heat exchanger is in communication; and, in a second operating mode, supplying the compressed air after the cooling in the system heat exchanger to either a line in communication with the at least one air conditioning system heat exchanger or to the at least one air conditioning system heat exchanger itself. 23. The method in accordance with claim 22, wherein the compressed air in the second operating mode is supplied, after the cooling in the system heat exchanger, to the inlet of the at least one air conditioning system heat exchanger to be supplied with compressed air or to the outlet of the at least one air conditioning system heat exchanger supplying cooled compressed air. 24. The method in accordance with claim 22, wherein the system heat exchanger and the at least one air conditioning system heat exchanger are supplied with compressed air via a common compressed air line (80) from a compressed air bleed system. 25. The method in accordance with claim 22, wherein a valve is provided in an inlet line (60) to the system heat exchanger to be supplied with compressed air; and in the event this valve erroneously remains closed, the system heat exchanger is charged with compressed air which is taken upstream or downstream from the at least one air conditioning system heat exchanger or from the at least one air conditioning system heat exchanger itself. 26. The method in accordance with claim 22, wherein the system heat exchanger and the at least one air conditioning system heat exchanger are charged with ram or environmental air through a common inlet (10), but via separate supply ducts (41, 42), and wherein a ram air inlet flap is provided which, in a closed position, only closes the supply duct (42) of the air conditioning system heat exchangers on a ram air line, with the ram air inlet flap being closed in a heating operation so that the ram air or the environmental air only flows through the system heat exchanger in the heating operation.