公开(公告)号：EP1573748B1

公开(公告)日：2008-03-05

申请号：EP03776153.3

申请日：2003-12-05

申请人： Westinghouse Electric Sweden AB

发明人： HULTQUIST, Gunnar ,  LIMBÄCK, Magnus ,  TÄGTSTRÖM, Per ,  HÖRNLUND, Erik

IPC分类号： G21C3/20 ,  G21C21/02

CPC分类号： G21C21/02 ,  G21C3/16 ,  G21Y2002/303 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/40

公开(公告)号：EP1573748A1

公开(公告)日：2005-09-14

申请号：EP03776153.3

申请日：2003-12-05

申请人： Westinghouse Electric Sweden AB

发明人： HULTQUIST, Gunnar ,  LIMBÄCK, Magnus ,  TÄGTSTRÖM, Per ,  HÖRNLUND, Erik

IPC分类号： G21C3/20 ,  G21C21/02

CPC分类号： G21C21/02 ,  G21C3/16 ,  G21Y2002/303 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/40

摘要： The invention concerns a nuclear fuel rod (1) for a nuclear reactor of the boiling water type or pressurized water type. The nuclear fuel rod comprises a cladding tube (2), that defines a closed inner space (3) and which is manufactured from at least one of the materials in the group zirconium and a zirconium-based alloy, and a pile of nuclear fuel pellets (9) arranged in the inner space in the cladding tube so that the nuclear fuel pellets fill part of the inner space. A fill gas is arranged in the closed inner space in order to fill the rest of the inner space. The internal pressure of the fill gas in the nuclear fuel rod amounts to at least 2 bar (abs) or at least 10 bar (abs). The fill gas contains a proportion of inert gas a proportion of carbon monoxide. The proportion of carbon monoxide is greater than 3 volume per cent of the fill gas or greater than 2 volume per cent of the fill gas.