Ab Asea-atom

Erik R Hellman

Bo Borrman

Bengt Ode

Aart Van Santen

Nils Lundin

A fuel assembly is disclosed which comprises a fuel channel (1) with square cross-section supported by an inlet sleeve (22) having at its lower part an inlet opening for a flow of coolant flowing through the fuel assembly. The inlet sleeve (22) is made of stainless steel and is mechanically connected to a transition sleeve (21) made of thick zirconium alloy sheet, which is welded to the more thin-walled fuel channel (1).

Earthquake-proof fuel assembly

A boiling water reactor fuel assembly is provided with an elongated, vertical stiffening device having four stiffening wings (4) which are each attached to a wall of the fuel box. Each stiffening wing has at least one vertically directed passageway for water. The stiffening device has a cruciform cross-section and is composed of four elongated members (6, 6', 6', 6'') of L-shaped cross-sections.

Fuel assembly

An apparatus is disclosed for heat treating metal sheet, comprising water-cooled cooling rolls (VII', VII'), a transportation channel (17) filled with protective gas, and a heating coil chamber (19) for a high-frequency coil (20,21).

Growing community of inventors

Vesteras, Sweden

Erik R Hellman