公开(公告)号：US3769159A

公开(公告)日：1973-10-30

申请号：US3769159D

申请日：1968-06-24

Applicant: COMBUSTION ENG

Inventor： ZINN W ,  LICHTENBERGER H

IPC: G21C3/356 ,  G21C3/34

CPC classification number: G21C3/3566 ,  Y02E30/40

Abstract: A support grid for the fuel assembly of a nuclear reactor. The grid being generally of the egg crate type of construction with the crossed grid plates being of a material having a low neutron absorption cross-section (Zircaloy). Springs to prevent fuel element movement are secured to these grid plates with the springs being of a high nickle alloy steel such that their load carrying capability resulting from stress relaxation during operation of the reactor is greater than would be the case if fabricated of the material of the grid plates.

Abstract translation: 用于核反应堆燃料组件的支撑网格。 网格通常是蛋箱类型的结构，其中交叉网格板是具有低中子吸收横截面（Zircaloy）的材料。 用于防止燃料元件移动的弹簧被固定到这些格栅板，弹簧是高镍合金钢，使得它们在反应器操作期间由于应力松弛而产生的载荷能力大于如果制造的材料 格板。