Heat exchanger and methods of producing the same

专利名称：Heat exchanger and methods of producing

the same

发明人：Cannas, Christian申请号：EP05107262.7申请日：20050805公开号：EP1750069A1公开日：20070207

专利附图：

摘要：A heat exchanger for a gas boiler for producing hot water is provided with acasing (10) extending along a first axis (A1) and through which combustion fumes flow; atube (11) along which water flows, and which is housed inside casing (10), and coils about

the first axis (A1) to form a helix (17) having a succession of turns (16); and deflectingmeans (12) for directing the fumes between successive turns (16) of a first helix portion(30) in a first direction (D1) and between successive turns (16) of a second helix portion(31) in a second direction (D2) opposite to first direction (D1); the tube (11) forming theturns (16) of the first helix portion (30) has a first cross section and the tube (11) formingthe turns (16) of the second helix portion (31) has a second cross section different fromthe first cross section.

申请人：Riello S.p.A.

地址：Via degli Alpini 1 37045 Legnago (VR) IT

国籍：IT

代理机构：Jorio, Paolo

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