公开(公告)号：US4036691A

公开(公告)日：1977-07-19

申请号：US662857

申请日：1976-03-01

申请人： Ronald Ross Meadowcroft ,  Alastair Stewart Bain

发明人： Ronald Ross Meadowcroft ,  Alastair Stewart Bain

IPC分类号： G21C3/17 ,  G21C3/18 ,  G21C3/04

CPC分类号： G21C3/18 ,  G21C3/17 ,  Y02E30/40

摘要： A nuclear fuel element wherein a tubular cladding of zirconium or a zirconium alloy has a fission gas plenum chamber which is held against collapse by the loops of a spacer in the form of a tube which has been deformed inwardly at three equally spaced, circumferential positions to provide three loops. A heat resistant disc of, say, graphite separates nuclear fuel pellets within the cladding from the plenum chamber. The spacer is of zirconium or a zirconium alloy.

摘要翻译： 一种核燃料元件，其中锆或锆合金的管状包层具有裂变气体增压室，该裂变气体增压室通过以三个等间隔的圆周位置向内变形的管形式的间隔物的环保持抵抗塌缩， 提供三个循环。 例如，石墨的耐热盘将包层内的核燃料颗粒与增压室分开。 间隔物是锆或锆合金。