US 12,275,529 B2
Driven turbocompressor of an air conditioning system having optimized cooling
Guillaume Barthes, Toulouse (FR); and James Fouragnan, Toulouse (FR)
Assigned to LIEBHERR-AEROSPACE TOULOUSE SAS, Toulouse (FR)
Appl. No. 18/019,818
Filed by LIEBHERR-AEROSPACE TOULOUSE SAS, Toulouse (FR)
PCT Filed Jul. 28, 2021, PCT No. PCT/EP2021/071203
§ 371(c)(1), (2) Date Feb. 5, 2023,
PCT Pub. No. WO2022/028992, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 2008266 (FR), filed on Aug. 4, 2020.
Prior Publication US 2023/0286657 A1, Sep. 14, 2023
Int. Cl. B64D 13/02 (2006.01); B64D 13/06 (2006.01); F02B 37/04 (2006.01); F02B 39/00 (2006.01)
CPC B64D 13/02 (2013.01) [B64D 13/06 (2013.01); F02B 37/04 (2013.01); F02B 39/005 (2013.01); B64D 2013/0629 (2013.01); B64D 2013/0644 (2013.01); B64D 2013/0648 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A driven turbocompressor of an air conditioning system for supplying conditioned air to a cabin of a vehicle, comprising:
an air intake duct configured to collect ambient air at ambient pressure,
a compressor connected to the air intake duct and to an inlet of the cabin, configured to receive air originating from the air intake duct, to compress the air originating from the air intake duct and to supply pressurized air at a pressure corresponding to a pressure needed to supply the cabin,
a motor connected to the compressor by a transmission shaft, configured to drive the compressor and surrounded by a casing,
an energy recovery turbine connected to an outlet of the cabin, and configured to expand cabin air originating from the outlet of the cabin to supply expanded air via an outlet of the turbine and condense water present in the cabin air to form droplets of water in suspension in the expanded air, and
a cooling duct connecting the outlet of the turbine and the casing of the motor, said cooling duct being configured to directly supply at least some of the expanded air containing the droplets of water in suspension to the motor casing, so as to cool the motor casing and the motor.