Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1989-05-17
1991-01-22
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376446, G21C 332
Patent
active
049869590
ABSTRACT:
An expandable top nozzle subassembly for a nuclear fuel assembly includes an upper structure having a top plate and a depending peripheral sidewall enclosure, a lower adapter plate disposed below the top plate and within the enclosure with the adapter plate and sidewall enclosure being slidably movable relative to one another so as to move the top plate toward and away from adapter plate, and a plurality of resiliently-yieldable biasing devices extending between and engaging the top plate and lower adapter plate. Interengagable structure on a lower edge of the enclosure and on a peripheral edge of the adapter plate capture and retain the adapter plate within the enclosure upon movement of the enclosure relative to the adapter plate which moves the top plate away from the adapter plate. The biasing devices in the form of coil springs are movable between compressed and expanded states in response respectively to application and removal of a hold-down force on the upper structure in the direction of the adapter plate for permitting and causing movement of the enclosure relative to the adapter plate so as to move the top plate toward and away from the adapter plate and thereby the top nozzle subassembly between compressed and expanded conditions.
REFERENCES:
patent: Re31583 (1984-05-01), Klomb et al.
patent: 3169097 (1965-02-01), Meyers
patent: 4072564 (1978-02-01), Jabsen
patent: 4075058 (1978-02-01), Noyes
patent: 4078967 (1978-03-01), Anthony
patent: 4269661 (1981-05-01), Kmonk et al.
patent: 4278501 (1981-07-01), Steinke
patent: 4534933 (1985-08-01), Gjertsen et al.
patent: 4572816 (1986-02-01), Gjertsen et al.
patent: 4603027 (1986-07-01), Wilson et al.
patent: 4628581 (1986-12-01), Gjertsen et al.
patent: 4670213 (1987-06-01), Wilson et al.
patent: 4692304 (1987-09-01), Gjertsen
patent: 4707326 (1987-11-01), Wilson et al.
patent: 4762676 (1988-08-01), Gjertsen et al.
Lee Yu C.
Sparrow James A.
Chelliah Meena
Walsh Donald P.
Westinghouse Electric Corp.
LandOfFree
Nuclear fuel assembly with expandable top nozzle subassembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nuclear fuel assembly with expandable top nozzle subassembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear fuel assembly with expandable top nozzle subassembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1554077