发明名称 Space-saving gas conveying piping for housing construction.
摘要 The installation has an air inlet conduit (4) including a duct. A burnt gas evacuation conduit (5) and a foul air extraction conduit (6) are mounted in a concentric manner inside the air inlet conduit. The foul air extraction conduit defines, in the duct, an airtight internal volume with respect to the flow of combustion air and the flow of burnt gas.
申请公布号 EP1541925(A1) 申请公布日期 2005.06.15
申请号 EP20040292791 申请日期 2004.11.26
申请人 GAZ DE FRANCE 发明人 ROULETTE, OLIVIER
分类号 F23J11/02;F24F7/00;F24F7/02;F24F7/08;(IPC1-7):F23J11/02 主分类号 F23J11/02
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