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US 2008/0185131 A1Published application
Heat exchanger and method of producing the same
AssigneeRIELLO S.p.A.
InventorChristian Cannas
Life of this patent
Estimating the term…
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 forming a plurality of turns along which water flows arranged inside the casing so as to form gaps between adjacent turns; a disk for guiding said fumes trough the gaps; and teeth integrally made with the tube for spacing adjacent turns apart and forming said gaps.
Claims12
1) A heat exchanger for a gas boiler for producing hot water;
- the heat exchanger (4) comprising a casing (10) extending along a first axis (A1) and through which combustion fumes flow;
- a tube (11) forming a plurality of turns (17) along which water flows;
- said turns (17) being arranged inside said casing (10) so as to form gaps between adjacent turns (17);
- deflecting means (12) for guiding said fumes trough said gaps;
- and spacing means (25) for spacing adjacent turns (17) apart and forming said gaps;
- characterised in that said spacing means are teeth (25) integrally made with tube (11).
3 more elements
7) A heat exchanger as claimed in claim 7, characterized in that said tube (11) has an oval shaped cross section;
- each tooth (25) protruding from the portion of the tube (11) having the largest radius.
Dependencies are inferred from the claim text.