| 摘要 |
Heat exchanger (10) for providing supercritical cooling to the refrigerant of a transcritical cooling system (12) including a pair of elongated headers (20, 22) plurality of elongated tubes (28) spaced in side-by-side relation along the longitudinal axes (24, 26) of the headers (20, 22), and serpentine fins (30) extending between adjacent pairs of the tubes. Each of the tubes (28) is folded upon itself to define at least two parallel legs (36) of the tubes (28) and has a flattened cross-section. The parallel legs (36) of the tubes (28) are preferably spaced from each other, with the major dimension D of each of the parallel legs lying in a common plane. Each of the fins (30) includes alternating tabs (40) and elongated separations (42) extending parallel to the parallel legs (36) and located between the parallel legs (36) of the adjacent tubes (28) to divide the width (W) of each fin (30) into discrete fin elements (44) that are connected to each other by the tabs (40). Each of the fin elements (44) extends along one of the parallel legs (36) of the adjacent tubes (28).
|
