Patent ID: 7594538

Claim:
A plate package ( 10 ) for a heat exchanger device having a tank ( 1 ), which forms a substantially closed inner space ( 2 ) and which includes an inner wall surface ( 3 ) facing the inner space, wherein the tank ( 1 ) is arranged to be provided in such a way that a sectional plane (p), which extends through the plate package ( 10 ) and the inner space of the tank ( 1 ), is substantially vertical, wherein the plate package ( 10 ) is arranged to be provided in the inner space ( 2 ) and comprises heat exchanger plates ( 11 ) provided adjacent to each other, wherein each heat exchanger plate ( 11 ) has a main extension plane (q) and is provided in such a way that the extension plane (q) is substantially perpendicular to said sectional plane (p), wherein the heat exchanger plates ( 11 ) form first plate interspaces ( 12 ), which are substantially open to the inner space ( 2 ) and arranged to permit circulation of said medium from the lower part space ( 2 ′) upwardly to the upper part space ( 2 ″), and second plate interspaces ( 13 ), which are closed to the inner space ( 2 ) and arranged to permit recirculation of a fluid for evaporating the medium, wherein the first plate interspaces ( 12 ) in an upper portion ( 31 ) of the plate package ( 10 ) form outlet channels ( 34 ) for the medium, wherein each heat exchanger plate ( 11 ) includes a first porthole and a second porthole ( 15 ) and wherein the first portholes ( 14 ) form an inlet channel for said fluid to the second plate interspaces ( 12 ) and the second portholes ( 15 ) form an outlet channel for said fluid from the second plate interspaces ( 13 ), and wherein each heat exchanger plate includes an elongated distribution element ( 25 ) extending into the adjacent second plate interspace ( 13 ) and substantially transversally to said sectional plane (p).