Heat exchange – Flow passages for two confined fluids
Reexamination Certificate
2005-04-05
2005-04-05
Flanigan, Allen (Department: 3743)
Heat exchange
Flow passages for two confined fluids
C165S177000
Reexamination Certificate
active
06874571
ABSTRACT:
The invention concerns a spiral heat exchanger, consisting of a series of spiral plates spaced apart from one another by spacer elements (3), wherein the spiral plates are formed by a coiled flattened tubular element and consisting of at least a sheet of material (1) whereof the edges (1a, 2b) are sealingly assembled by linking elements (4) which extend parallel to the longitudinal axis (yy′) of the sheet (1). The exchanger is characterized in that the flattened tubular element comprises on its outer surfaces ribs (3) inclined relative to its transverse axis (xx′).
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Flanigan Allen
Spirec (Societe Anonyme)
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