| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress degradation in heat exchange performance as an entire heat exchanger in a compound heat exchanger configured to enable heat exchange among a plurality of fluids.SOLUTION: An outside air passage 70a through which outside air circulates is formed around refrigerant tubes 12a and cooling water tubes 43a, and outer fins 70b accelerating heat exchange between refrigerant and the outside air and heat exchange between cooling water the outside air are arranged in the outside air passage 70a. The outer fins 70b each include a refrigerant-side thermal connection unit 71b thermally connecting the refrigerant tubes 12a to each other and a cooling-water-side thermal connection unit 72b thermally connecting the refrigerant tube 12a to the cooling water tube 43. In a dedicated core unit 701 constituted by a most-downstream refrigerant tube 121a forming a final path that is a path most downstream of a refrigerant flow, the refrigerant-side thermal connection units 71b are more than the cooling-water-side thermal connection units 72b.</p> |
