Air conditioning system for a motor vehicle

B - Operations – Transporting – 60 – H

Patent

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Details

B60H 1/00 (2006.01)

Patent

CA 2636877

An auxiliary air conditioning system (7) for a motor vehicle (1), comprising a first heat exchanger (17) adapted to be installed inside a passenger compartment (4) of the motor vehicle and an external unit (43) comprising an auxiliary engine (8), an auxiliary compressor (12) driven by the auxiliary engine (8) and a second exchanger (17) . The system comprises a switching valve (20) for selectively setting a first refrigerating cycle operating mode in which the first heat exchanger (17) serves as an evaporator and the second heat exchanger (14) serves as a condenser, and a second heat pump operating mode, in which the first heat exchanger (17) serves as a condenser and the fluid of the second heat exchanger (14) is cut off and the operative fluid is allowed to flow through a heating device (30) to receive thermal power independently from the outside environment temperature.

La présente invention concerne un système de climatisation auxiliaire (7) pour un véhicule à moteur (1), comprenant un premier échangeur de chaleur (17) pouvant être installé dans un compartiment passager (4) du véhicule à moteur et une unité externe (43) comprenant un moteur auxiliaire (8), un compresseur auxiliaire (12) commandé par le moteur auxiliaire (8) et un second échangeur de chaleur (17). Le système comprend une vanne de commutation (20) de mise sélective du cycle de réfrigération en un premier mode de fonctionnement du cycle de réfrigération dans lequel le premier échangeur de chaleur (17) sert d'évaporateur et le second (14) de condensateur, et un second mode de fonctionnement de pompe à chaleur, dans lequel le premier échangeur de chaleur (17) sert de condensateur, le fluide du second échangeur de chaleur (14) est arrêté, et le fluide opérationnel peut circuler dans un dispositif de chauffage (30) pour recevoir la puissance thermique indépendamment de la température de l'environnement extérieur.

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