Heat exchanger with finned tube and method of producing the...

Details Heat exchanger with finned tube and method of producing the... Heat exchanger with finned tube and method of producing the...

2007-02-05

2011-10-04

Duong, Tho V (Department: 3744)

Heat exchange

Casing or tank enclosed conduit assembly

Conduit coiled within casing

C165S156000

Reexamination Certificate

active

08028746

ABSTRACT:
A heat exchanger for a gas boiler for producing hot water is provided with a casing extending along a first axis and through which combustion fumes flow; a tube along which water flows, and which is housed inside the casing and coils about the first axis to form a helix made of a succession of turns; and deflecting means for directing the fumes between successive turns; the tube being provided with a first and a second fins, which extend along the length of the tube, face one another, and are tangent to the tube.

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European Search Report mailed Dec. 27, 2005 in corresponding application No. 05107263.5-2301.

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