A nuclear reactor fuel element grid

The grid construction consists of a group of parallel grid parts or plates arranged at equal distance. Vertical to them there are further plates, all plates having mutually engaged slots through which the mating parts can be interlaced with one another. The cells formed in this way are circumscribed by a strip of equal width. Sharp edges tending to interlace neighboring fuel elements are excluded. Therefore, all projecting parts are inclined and the slots form V-shaped bearing areas. They have a cam-type effect so that the fuel elements can glide with respect to each other. The grid construction supports the assembly of the reactor core and reduces pressure losses and distrubing neutron capture because of less structural material. (DG)