Patent ID: 8082752
Filing Date: 2011-12-27
Classification: B60H,F25B

Abstract:
1. An air conditioning circuit ( 10 ), for a motor vehicle, through which a supercritical refrigerant flows, said air conditioning circuit ( 10 ) including a gas cooler ( 11 ), at least two evaporators ( 131 , 132 ) mounted in parallel, and a pressure-reducing module connected to said circuit ( 10 ) via one inlet and two outlets disposed downstream of said inlet, wherein said pressure-reducing module comprises a pressure-reducing device ( 120 ) and a distribution valve ( 16 ) connected in series to said pressure-reducing device and to the two outlets, wherein said pressure-reducing module receives the refrigerant coming from said gas cooler via said inlet and delivers the refrigerant to at least one of said evaporators ( 131 , 132 ) via said outlets, and wherein all the refrigerant passing through the pressure-reducing module ( 12 ) is distributed by the distribution valve ( 16 ) towards at least one of said evaporators ( 131 , 132 ), and wherein said distribution valve ( 16 ) adjusts the proportion of fluid delivered to said evaporators ( 131 , 132 ) to optimize refrigerating capacity.