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公开(公告)号:US09920999B2
公开(公告)日:2018-03-20
申请号:US12933152
申请日:2009-03-17
CPC分类号: F28D7/0033 , F25B40/00 , F25B2309/061 , F25B2500/18 , F28D7/04
摘要: The invention relates to a heat-exchanger for an air-conditioning circuit that includes a first pipe (110) defining a path for a flow of fluid, the first pipe being spirally wound about a so-called exchanger axis (A). According to the invention, the heat exchanger (9) further includes at least one second pipe (120a, 120b) defining a path for a flow of a second fluid, said second pipe being provided against a surface of the first pipe (110) and spirally wound together with said first pipe (110) about said axis (A). The invention can be used in air-conditioning circuits operating with a super-critical coolant, in particular carbon dioxide (CO2).