COMPRESSOR/TURBINE ARRANGEMENT, AIR CONDITIONING UNIT AND METHOD FOR OPERATING A COMPRESSOR/TURBINE ARRANGEMENT
First Claim
1. Compressor/turbine arrangement for use in an air conditioning unit of an aircraft air conditioning system, having:
- a process air supply line which is designed to supply process air generated by a process air source to a compressor,a detection device which is designed to detect a signal characteristic of the temperature of the process air flowing through the process air supply line,a turbine which is designed to drive the compressor,a cooling device which is arranged in a process air line connecting the compressor to the turbine and is designed to cool the process air exiting the compressor and flowing through the process air line in the direction of the turbine,a connecting line which branches off from the process air line downstream of the cooling device and opens into the process air supply line,a control device which is designed to control a process air flow through the connecting line in dependence on the signal detected by the detection device and characteristic of the temperature of the process air flowing through the process air supply line, there being no cooling device interposed in the process air supply line, so that the process air flowing through the process air supply line in the region of an end connected to the process air source has substantially the same temperature as the process air flowing through the process air supply line in the region of an end connected to the compressor.
1 Assignment
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Accused Products
Abstract
The invention relates to a compressor/turbine arrangement for use in an air conditioning unit of an aircraft air conditioning system comprising a process air supply line which is designed to supply process air generated by a process air source to a compressor. A detection device is designed to detect a characteristic signal for the temperature of the process air flowing through the process air supply line. A turbine is designed to drive the compressor. A cooling device is disposed in a process air line connecting the compressor to the turbine and is designed to cool the process air coming out of the compressor and flowing through the process air line in the direction of the turbine. Downstream of the cooling device a connecting line branches off from the process air line and opens into the process air supply line. A control device is designed to control a process air flow through the connecting line in dependence on the signal detected by the detection device.
7 Citations
12 Claims
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1. Compressor/turbine arrangement for use in an air conditioning unit of an aircraft air conditioning system, having:
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a process air supply line which is designed to supply process air generated by a process air source to a compressor, a detection device which is designed to detect a signal characteristic of the temperature of the process air flowing through the process air supply line, a turbine which is designed to drive the compressor, a cooling device which is arranged in a process air line connecting the compressor to the turbine and is designed to cool the process air exiting the compressor and flowing through the process air line in the direction of the turbine, a connecting line which branches off from the process air line downstream of the cooling device and opens into the process air supply line, a control device which is designed to control a process air flow through the connecting line in dependence on the signal detected by the detection device and characteristic of the temperature of the process air flowing through the process air supply line, there being no cooling device interposed in the process air supply line, so that the process air flowing through the process air supply line in the region of an end connected to the process air source has substantially the same temperature as the process air flowing through the process air supply line in the region of an end connected to the compressor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Method for operating a compressor/turbine arrangement provided for use in an air conditioning unit of an aircraft air conditioning system, having the steps:
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supplying process air, generated by a process air source, to a compressor through a process air supply line in which no cooling device is provided, detecting a signal characteristic of the temperature of the process air flowing through the process air supply line, cooling the process air exiting the compressor by means of a cooling device which is arranged in a process air line connecting the compressor to a turbine, the turbine being designed to drive the compressor supplying the cooled process air to the turbine controlling a process air flow through a connecting line, branching off from the process air line downstream of the cooling device and opening into the process air supply line in dependence on the detected signal characteristic of the temperature of the process air flowing through the process air supply line, the process air flowing through the process air supply line in the region of an end connected to the process air source having substantially the same temperature as the process air flowing through the process air supply line in the region of an end connected to the compressor. - View Dependent Claims (9, 10, 11, 12)
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Specification