Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1993-07-14
1994-12-20
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376353, G21C 332
Patent
active
053751558
ABSTRACT:
A pressurized water reactor fuel assembly includes a can with a flange engaging an upper surface of an upper tie plate through a bore and carrying a collar projecting beyond a lower surface of the upper tie plate and having an external thread. A bush at an upper end of a guide tube has an internal thread and an end surface which abuts the lower surface of the upper tie plate. A profile at the periphery of the bush engages a corresponding counter profile of the lower surface of the upper tie plate. This removable screw connection, which is also suitable for coolant tubes of boiling-water fuel assemblies, requires little of the cross-sectional area required for coolant bores and no individual tolerance equalization of the screw connections of an individual plate.
REFERENCES:
patent: 3864211 (1975-02-01), King et al.
patent: 4030975 (1977-06-01), Anthony et al.
patent: 4064004 (1977-12-01), Long et al.
patent: 4219386 (1980-08-01), Osborne et al.
patent: 4522782 (1985-06-01), Leclercq
patent: 4937039 (1990-06-01), Balog
patent: 5267286 (1993-11-01), Hirukawa
Chelliah Meena
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Walsh Donald P.
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