Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Reexamination Certificate
1998-02-17
2008-03-04
Ciric, Ljiljana (Department: 3744)
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
C165S070000
Reexamination Certificate
active
07337836
ABSTRACT:
A heat exchanger with a leakage vent. A fully brazed heat exchanger has an arrangement preventing the two media inside the heat exchanger from mixing in case of leakage. The heat exchanger includes plates having a pattern of grooves and inlet and outlet connections. The plates are placed in a pack and brazed together so as to form separate channels for two media between alternating pairs of plates. A separation zone is created around the connection so as so block off the medium that is not to reach the respective connection. The other medium can flow on by. A leakage vent to the exterior is provided in the separation zone so as to allow detection of any leakage.
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Lilljeqvist, Jorg, “Heat Exchanger of a Plate Exchanger Type” [Varmevaxlare av plattvaxlartyp], translated by Schreiber Translations, Inc., PTO 2007-6209, United States Patent and Trademark Office, Washington, D.C., Aug. 2007.
Ciric Ljiljana
EP Technology AB
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