Auxiliary active motor vehicle heating and air conditioning...

F - Mech Eng,Light,Heat,Weapons – 25 – B

Patent

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Details

F25B 17/08 (2006.01) B60H 1/00 (2006.01) B61D 27/00 (2006.01) C09K 5/04 (2006.01)

Patent

CA 2379757

A heating and air conditioning system for a passenger area of a motor vehicle comprising a heat exchanger (20, 114) in the passenger area piped to receive conditioned heat transfer fluid, a sorption cooling system located outside the passenger area having first and second reactors (32, 34, 102, 104), each reactor containing a metal salt or a complex compound and having a section for exchanging heat between a heat transfer fluid and/or condensed polar gas refrigerant and said metal salt or said complex compound, a refrigerant loop including an evaporator (40, 112) piped to deliver conditioned heat transfer fluid to the heat exchanger (20, 114) during air conditioning, a heater (54, 110) for heating heat transfer fluid, and a valve assembly (65, 128, 130) for directing heat transfer fluid heated by the heater (54, 110). In a preferred embodiment each reactor contains a composition comprising a substrate material inert to the polar gas and incorporating the salt or the complex compound.

L'invention concerne un système auxiliaire de climatisation et de chauffage de l'habitacle d'un véhicule automobile, comprenant un échangeur de chaleur (20, 114) prévu dans l'habitacle, raccordé, de sorte qu'il reçoive le fluide caloporteur climatisé, un système de refroidissement par sorption situé à l'extérieur de l'habitacle, doté d'un premier et d'un deuxième réacteur (32, 34, 102, 104) contenant chacun un sel de métal ou un composé complexe et possédant une section pour l'échange de chaleur entre un fluide caloporteur et/ou un réfrigérant gazeux polaire condensé et ledit sel de métal ou composé complexe, une boucle de réfrigérant comprenant un évaporateur (40, 112) raccordé, de sorte qu'il achemine le fluide caloporteur climatisé jusqu'à l'échangeur de chaleur (20, 114) pendant la climatisation, un dispositif de chauffage (54, 110) pour chauffer le fluide caloporteur, et un ensemble à soupapes (65, 128, 130) pour diriger le fluide caloporteur chauffé par le dispositif de chauffage (54, 110). Dans un mode de réalisation préféré, chaque réacteur contient une composition comprenant un matériau substrat inerte par rapport au gaz polaire ainsi que ledit sel ou composé complexe.

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