초록 ▼

The present invention relates to an air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprising a heat exchanger for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and co

The present invention relates to an air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprising a heat exchanger for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger and are in connection on the outlet side with a mixing chamber or the space to be air conditioned. A high cooling performance is also achieved on the failure of one of the expansion devices or of an air cycle machine in that the heat exchanger is split into two heat exchanger units at the compressed air side whose inlets are each charged with compressed air, with the heat exchanger units being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit is prevented and with the heat exchanger units being able to be connected on the outlet side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system.

대표청구항 ▼

1. An air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprisinga heat exchanger (1) for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expan

1. An air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprisinga heat exchanger (1) for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger (1) and are in connection on the outlet side with a mixing chamber or the space to be air conditioned, and the heat exchanger (1) is divided at the compressed air side into two heat exchanger units (SHX1 and SHX2) whose inlets are each charged with compressed air, with the heat exchanger units (SHX1, SHX2) being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit (SHX1, SHX2) is prevented, and with the heat exchanger units (SHX1, SHX2) being able to be connected on the outlet side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system. 2. An air conditioning system in accordance with claim 1, wherein a first and a second compressor (C) are provided whose outlets are in connection with respectively one of the heat exchanger units (SHX1, SHX2).3. An air conditioning system in accordance with claim 2, wherein the expansion devices are designed as a first and a second turbine (T), with the first turbine being arranged on a respective shaft with the first compressor and the second turbine with the second compressor.4. An air conditioning system in accordance with claim 3, wherein a blower is arranged on each of the shafts, said blower being disposed in a stagnating air channel (14) of the air conditioning system.5. An air conditioning system in accordance with claims 1, wherein more than one compressor and/or more than one turbine are provided per air cycle machine (ACM).6. An air conditioning system in accordance with claim 4, wherein the stagnating air channel (13, 14) is divided into two part channels (14) downstream of the primary heat exchanger (6) and/or upstream of the heat exchanger (1), with a blower being arranged in each of the part channels (14) downstream of the primary heat exchanger (6).7. An air conditioning system in accordance with claim 1, wherein the heat exchanger (1) is designed on the stagnating air side such that the stagnating air flows through the heat exchanger units (SHX1, SHX2) together or separately.8. An air conditioning system in accordance with claim 1, wherein at least one water extraction circuit (7) is provided which is in connection with the heat exchanger (1) on the inlet side and with the expansion devices on the outlet side.9. An air conditioning system in accordance with claim 8, wherein a cut-off valve (11, 12) is respectively arranged between the expansion devices and the water extraction circuit (7).10. An air conditioning system in accordance with claim 8, wherein a bypass line with a cut-off valve (15) is provided which connects the outlet of the heat exchanger (1) to the inlets of the expansion devices for the purpose of bypassing the water extraction circuit (7).11. An air conditioning system in accordance with claim 1, wherein each air cycle machine comprises at least one turbine stage with a blower or at least one compressor.12. An air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprisinga heat exchanger (1) for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger (1) and are in connection on the outlet side with a mixing chamber or the space to be air conditioned, the heat exchanger (1) is divided at the compressed air side into two heat exchanger units (SHX1, SHX2) whose inlets are each charged with compressed air, with the heat exchanger units (SHX1, SHX2) being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit (SHX1, SHX2) is prevented, with the heat exchanger units (SHX1, SHX2) being able to be connected on the outlet side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system, and swing-type check valves (2,3) are provided which are arranged in the outlet lines of the heat exchanger units (SHX1, SHX2) and which prevent a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit (SHX1, SHX2). 13. An air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprisinga heat exchanger (1) for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger (1) and are in connection on the outlet side with a mixing chamber or the space to be air conditioned, the heat exchanger (1) is divided at the compressed air side into two heat exchanger units (SHX1, SHX2) whose inlets are each charged with compressed air, with the heat exchanger units (SHX1, SHX2) being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit (SHX1, SHX2) is prevented, with the heat exchanger units (SHX1, SHX2) being able to be connected on the outlet side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system, the heat exchanger (1) is arranged in a stagnating air channel (11, 14) of the air conditioning system, and a primary heat exchanger (6) is disposed after the heat exchanger (1) in the flow direction of the stagnating air or the heat exchanger and the primary heat exchanger are arranged in parallel. 14. An air conditioning system in accordance with claim 13, wherein a primary heat exchanger unit is associated with each heat exchanger unit (SHX1, SHX2) such that the stagnating air is guided into the associated primary heat exchanger unit after flowing through a heat exchanger unit (SHX1, SHX2).15. An air conditioning in accordance with claim 13, wherein a common or separate primary heat exchanger (6) is associated with the heat exchanger units (SHX1, SHX2) and the compressed air is guided through this after flowing through the heat exchanger units (SHX1, SHX2).16. An air conditioning system in accordance with claim 13, wherein the primary heat exchanger (6) is charged with the tapped air originating from the engine on the inlet side and is in connection with the compressor (C) on the outlet side.17. An air conditioning system in accordance with claim 16, wherein a bypass line is provided which connects the inlet side and the outlet side respectively of the compressor (C) to one another and in which a swing-type check valve (16, 17) is arranged.18. An air conditioning system in accordance with claim 13, wherein the primary heat exchanger (6) is designed at the compressed air side such that the compressed air flows through this together or separately.19. An air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprisinga heat exchanger (1) for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger (1) and are in connection on the outlet side with a mixing chamber or the space to be air conditioned, the heat exchanger (1) is divided at the compressed air side into two heat exchanger units (SHX1, SHX2) whose inlets are each charged with compressed air, with the heat exchanger units (SHX1, SHX2) being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit (SHX1, SHX2) is prevented, with the heat exchanger units (SHX1, SHX2) being able to be connected on the outlet side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system, and two water extraction circuits are provided which are respectively in connection with a heat exchanger unit (SHX1, SHX2) on the inlet side and one of the expansion devices on the outlet side. 20. An air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprisinga heat exchanger (1) for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger (1) and are in connection on the outlet side with a mixing chamber or the space to be air conditioned, the heat exchanger (1) is divided at the compressed air side into two heat exchanger units (SHX1, SHX2) whose inlets are each charged with compressed air, with the heat exchanger units (SHX1, SHX2) being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit (SHX1, SHX2) is prevented, with the heat exchanger units (SHX1, SHX2) being able to be connected on the outlet-side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system, and sensors are provided by which a defect or failure of an expansion device can be detected. 21. An air conditioning system in accordance with claim 20, wherein the sensors are designed as temperature sensors, pressure sensors or speed sensors.