- Patent Title: Aircraft air conditioning system with a cabin exhaust air turbine
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Application No.: US16720597Application Date: 2019-12-19
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Publication No.: US11542017B2Publication Date: 2023-01-03
- Inventor: Holger Bammann , Frank Klimpel
- Applicant: Airbus Operations GmbH
- Applicant Address: DE Hamburg
- Assignee: Airbus Operations GmbH
- Current Assignee: Airbus Operations GmbH
- Current Assignee Address: DE Hamburg
- Agency: Greer, Burns & Crain, Ltd.
- Priority: DE102015222193.8 20151111
- Main IPC: B64D13/08
- IPC: B64D13/08 ; B64D13/02 ; B64D13/06 ; F25B9/00 ; F25B9/10

Abstract:
An aircraft air conditioning system comprising an ambient air line, for ambient air to flow through, connected to supply ambient air to a mixer of the aircraft air conditioning system. An ambient air compressor is arranged in the ambient air line for compressing the ambient air flowing there through. A refrigerating apparatus comprises a refrigerant circuit for a refrigerant to flow through, including a refrigerant compressor arranged in the refrigerant circuit. The refrigerant circuit is coupled thermally to the ambient air line to transfer heat from the ambient air to the refrigerant before the ambient air is supplied to the mixer. A cabin exhaust air turbine is connected to a cabin exhaust air line, is coupled to the ambient air compressor arranged in the ambient air line, and is configured to expand the cabin exhaust air flowing through the cabin exhaust air line and to drive the ambient air compressor.
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