Patent ID: 7555093

Claim:
A spacer for a fuel assembly of a boiling water reactor having a fuel assembly channel with an inner side, the spacer comprising: a frame formed with outer webs and inner webs oriented crossways with respect to one another, said outer webs having an outer side facing towards the inner side of the fuel assembly channel in an assembled state; gills formed on said outer side of said outer webs and projecting outward to a given extent from said outer side, said gills each including an opening in said outer web defining an upper edge of said opening and an adjoining wall region of said outer webs both being pre-curved outward; a plurality of projections each formed by an outward bulge in a wall of said outer webs, said projections each having a lower edge extending to and being identical with a lower edge of a respective one of said outer webs and projecting outwardly to a greater extent than said given extent of said gills, said projections each being disposed in a region of a respective one of said inner webs; and a deflector lug formed integrally on a lower edge of said projections.