Spiral heat exchangers

Details Spiral heat exchangers Spiral heat exchangers

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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patent: 2017201 (1935-10-01), Bossart
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patent: 4274186 (1981-06-01), Pringle
patent: 5445216 (1995-08-01), Cannata
patent: 5505255 (1996-04-01), Viessmann
patent: 3031698 (1982-03-01), None
patent: 489 717 (1919-03-01), None
patent: 2 096 719 (1972-02-01), None
patent: 55-123993 (1980-09-01), None

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