Aircraft air conditioning system with a cabin exhaust air turbine

US11542017B2 · kind B2 · utility

Assignee

• AIRBUS OPERATIONS LIMITED · DE

Inventors

• Holger Bammann · Hamburg, DE
• Frank Klimpel · Hamburg, DE

Key dates

• Filing date: Dec 19, 2019
• Grant date: Jan 3, 2023
• Expiry date: Sep 13, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/50
• WIPO field: Transport
• WIPO sector: Mechanical engineering

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.