Patent ID: 6926076
Filing Date: 2005-08-09
Classification: F28D,F28F,Y10S

Abstract:
1. A heat transfer plate for heat transfer between two fluids having a pressed corrugation pattern, said plate having first and second distribution portions and, arranged between said distribution portions, a main heat transfer portion, said main heat transfer portion being divided into several areas having parallel ridges and valleys, the first and second distribution portions having inlets and outlets for said fluids, arranged in such a way that the fluids will have a flow direction essentially from one to the other of the distribution portions of the heat transfer plate, wherein the main heat transfer portion of each heat transfer plate comprises a row with an odd number of at least three areas located following one another in said flow direction, an even number of such rows are arranged next to each other across the flow direction, at least said three areas of each row being situated beside corresponding areas of an adjacent row, the parallel ridges and valleys of each pair of adjacent areas, both in said flow direction and across said flow direction, extend in such a way, that they form mirror images of each other with reference to an imaginary line between respective areas, and the main heat transfer portion is provided with upwardly pressed reinforcing grooves, extending in the flow direction and staggered in the flow direction relative to each other.