| 摘要 |
1. Fuel assembly for a boiling water reactor with a lower lattice device supporting a plurality of fuel rods, with a fuel channel (1) surrounding all the fuel rods, with a transition member (2) provided with a downwardly-facing inlet opening (11) for reactor cooling, with at least one vertical water channel (4, 5) for a water flow in the longitudinal direction of the fuel rods, which water flow is separated from the fuel rods, whereby said water channel (4, 5) is hydraulically connected at its lower end to at least one substantially radially extending channel (10) opening out at the outer side wall of the fuel assembly, and whereby said water channel (4, 5) has no direct hydraulic connection with the space surrounded by the transition member, and with at least one through-hole (12) being positioned lower than the outlet opening of said substantially radial channels and being hydraulically connected with said inlet opening (11) via a space surrounded by said transition member (2). |
