| 摘要 |
A plate heat exchanger (100) comprises a number of plates (110) provided with a pressed pattern of ridges (R) and grooves (G) arranged to keep the plates (110) on a distance from one another under formation of interplate flow channels for media to exchange heat. The interplate flow channels communicate with port openings (A, B, C, 140) being in selective communication with said interplate flow channels, one of the port openings (140) providing for connection to a downstream side of an expansion valve (EXP) such that coolant from the expansion valve (EXP) may enter the interplate flow channels communicating with the one port opening (140). A heat exchanging means (160, 165, 150, 155; HEP, LC, DP) is provided inside the one port opening (140), said heat exchanging means (160, 165, 150, 155; HEP, LC, DP) being arranged for exchanging heat between coolant downstream the expansion valve (EXP) and coolant about to enter the expansion valve (EXP). |
