Fuel assembly for nuclear reactors and helical spacers have bundles of fuel pins
    1.
    发明授权
    Fuel assembly for nuclear reactors and helical spacers have bundles of fuel pins 失效
    核反应堆燃料组件和螺旋桨间隙燃油栓

    公开(公告)号:US3629066A

    公开(公告)日:1971-12-21

    申请号:US3629066D

    申请日:1968-08-09

    Applicant: ASEA AB

    CPC classification number: G21C3/338 Y02E30/40

    Abstract: A fuel assembly for nuclear reactors is formed of a polygonal sheathing tube and a bundle of fuel pins inside the tube. The pins are provided with helically wound spacer elements of equal pitch. The fuel pins are of two different types, pins of type B having one more spacer element than those of type A. Each pin of type A is surrounded by six pins of type B, and each fuel pin of type B, except those at the sides of the bundle, is surrounded by alternate pins of types A and B.

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