Patent Number: 052001431
Section: claims

1. A fuel assembly (1) for a nuclear reactor, comprising a number of parallel fuel rods (2) which are held together by means of spacers (4, 5) arranged along the fuel rods (2) as well as guide tubes (3) arranged between the fuel rods (2) in parallel therewith, said guide tubes (3) extending through the spacers (4, 5), a top nozzle (6) and a bottom nozzle (7) between which the guide tubes (3) are fixed, characterized in that bottom sleeves (8) for the guide tubes (3) are arranged in the spacer 5) nearest the bottom nozzle (7), said bottom sleeves (8) being rigidly fixed to the spacer (5) and resting against the bottom nozzle (7) and being provided with a first locking member for receiving a second locking member, arranged at the end of a guide tube, in order to lock the guide tube (3) so as to be rigid in the direction of rotation. 2. A fuel assembly according to claim 1, characterized in that the first locking member consists of at least one slot (9) for receiving the second locking member which consists of at least one tongue (10).