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1. (WO2018042090) INDIRECT REVERSIBLE AIR-CONDITIONING CIRCUIT FOR A MOTOR VEHICLE AND CORRESPONDING OPERATING METHOD

Pub. No.:    WO/2018/042090    International Application No.:    PCT/FR2017/052015
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat Jul 22 01:59:59 CEST 2017
IPC: B60H 1/00
B60H 1/22
F25B 25/00
F25B 40/02
B60H 1/32
Applicants: VALEO SYSTEMES THERMIQUES
Inventors: BENOUALI, Jugurtha
Title: INDIRECT REVERSIBLE AIR-CONDITIONING CIRCUIT FOR A MOTOR VEHICLE AND CORRESPONDING OPERATING METHOD
Abstract:
The invention relates to an indirect air-conditioning circuit (1) for a motor vehicle, comprising: a first refrigerant loop (A) comprising a compressor (3), a first depressurising device (7), a first heat exchanger (9), a second depressurising device (11), a second heat exchanger (13), and a pipe for bypassing (30) the second heat exchanger (13); a second heat-transfer fluid loop (B); and a dual-fluid heat exchanger (5) arranged both on the first refrigerant loop (A) downstream from the compressor (3), between said compressor (3) and the first depressurising device (7), and on the second heat-transfer fluid loop (B), the first refrigerant loop (A) comprising a line for the bypassing (40) of the refrigerant, which connects the refrigerant outlet of the dual-fluid heat exchanger (5) to a point located upstream from the compressor (3), between the refrigerant outlet of the bypass pipe (30) and said compressor (3).