Patent ID: 6744843
Filing Date: 2004-06-01
Classification: G21C,Y02E

Abstract:
A side-slotted nozzle type double sheet spacer grid for nuclear fuel assemblies, comprising a plurality of inner strips intersecting each other at a predetermined angle to form a plurality of four-walled cells to receive and support a plurality of fuel rods in the spacer grid, each of said inner strips comprising a plurality of unit strip parts each of which is fabricated by integrating two unit sheet parts together into a single structure, such that the two unit sheet parts face each other and a nozzle type coolant channel with an inlet and an outlet is defined between the two unit sheet parts, whereineach of said unit sheet parts is provided with a slot longitudinally formed on each side surface of a spring which is projected from the unit sheet part to support a fuel rod within a four-walled cell.