Nuclear reactor fuel assembly专利检索-燃料组件堆芯核反应堆核能专利检索查询-专利查询网

Nuclear reactor fuel assembly

阅读：577发布：2022-12-03

专利汇可以提供Nuclear reactor fuel assembly专利检索，专利查询，专利分析的服务。并且A fuel assembly comprising a plurality of spaced, parallel, and sheathed fuel bearing elements supported at a plurality of longitudinal locations within openings in laterally extending grid structures. Each opening in each grid structure receives a fuel element which is supported by a torsion spring having a cantilever loading arm which contacts the fuel element proximate a maximum flow area of the grid opening and by one oor more nonresilient dimples in opposition to the spring. In one embodiment of a honeycomb grid lattice, the lattice is formed by preferably brazing reduced sections of preformed half-honeycombs to achieve the desired fuel element spacing.，下面是Nuclear reactor fuel assembly专利的具体信息内容。

权利要求

1. A fuel assembly for a nuclear reactor of the type wherein a coolant medium is caused to flow through longitudinal channels formed in the fuel assembly, which comprises: a plurality of elongated fuel elements disposed in a generally parallel array; at least one grid structure comprising a plurality of grid straps extending laterally across said fuel elements and forming a plurality of openings, some of said openings having fuel elements disposed therein; means for laterally supporting said fuel elements associated with said some of said openings including a relatively resilient loading member extending laterally into each said grid openings and slippingly contacting the fuel element, said loading member being connected to an intermediate portion of torsion member at its end opposite that which contacts said fuel elements, said torsion member being supported only at its opposite longitudinal ends by a grid strap for absorbing forces acting on the loading member by twisting whereby said forces are absorbed uniformly.

2. The fuel assembly of claim 1 wherein a rigid projection is interposed between the loading member and the fuel element at the point of contact and the longitudiNal dimension of the rigid member is greater than one-fourth of the longitudinal dimension of the loading member.

3. The fuel assembly of claim 2 in which at least one additional substantially rigid member is interposed between the fuel element and the grid straps; opposing the loading arm.

4. The fuel assembly of claim 3 in which said additional rigid member is situated so that its contact point with the fuel elements are longitudinally displaced from that of said rigid projection interposed between the loading member and the fuel element.

5. The fuel assembly of claim 1 wherein each said torsion member extends from and is substantially coplanar with a grid strap.

6. The fuel assembly of claim 1 wherein each torsion member and each loading member is formed from a grid strap.

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