Patent ID: 8939195
Filing Date: 2015-01-27
Classification: B23K,F28D,F28F,Y10T

Abstract:
1. A heat exchanger cassette comprising a first heat exchanger plate and a second heat exchanger plate, wherein the first heat exchanger plate comprises a corrugated pattern having a plurality of ridges and valleys and further comprises a first sealing gasket groove encircling a first heat transfer surface that is adapted to be part of a contact-free fluid channel when the cassette is positioned adjacent to another cassette, wherein the first sealing gasket groove comprises a first base surface and first side surfaces, the first base surface being connected to each of the first side surfaces by respective first bends of the first heat exchanger plate, the first base surface including a first flat section arranged substantially parallel to the first heat transfer surface of the first heat exchanger plate and a second bent section, the second bent section being located between the first flat section and one of the first bends as seen in a lateral cross-section, and wherein the second bent section is angled with respect to the first flat section, with the angle being in the interval of 1 to 25 degrees, wherein the second heat exchanger plate comprises a second sealing gasket groove encircling a second heat transfer surface, wherein the second sealing gasket groove comprises a second base surface and second side surfaces, the second base surface being connected to each of the second side surfaces by respective second bends of the second heat exchanger plate, the second base surface including a third flat section arranged substantially parallel to the second heat transfer surface and a fourth bent section angled with respect to the third flat section, the fourth bent section being located between the third flat section and one of the second bends as seen in a lateral cross-section, wherein the second bent section and the fourth bent section diverge in opposite directions.