Cluster for adjusting a nuclear reactor core reactivity,...

Details Cluster for adjusting a nuclear reactor core reactivity,... Cluster for adjusting a nuclear reactor core reactivity,...

2003-06-06

2008-09-09

Palabrica, Rick (Department: 3663)

Induced nuclear reactions: processes, systems, and elements

Control component for a fission reactor

Nonconventional control material

C376S327000, C376S333000

Reexamination Certificate

active

07424085

ABSTRACT:
A control cluster for a pressurized water nuclear reactor comprising a bundle of neutron-absorbing rods each of which comprises a metal tube called cladding which is sealed off by a top end plug at its top end and by a bottom end plug at its bottom end and has a support, or spider, of radiating shape to which the absorber rods are attached through their upper end plugs, characterized in that the cladding of at least some of the absorber rods is weld-free hafnium tubes, the top end plugs of the absorber rods having hafnium cladding being of titanium-based alloy and being welded to the top end part of the hafnium cladding of the absorber rod, the bottom end plugs being of massive hafnium and being welded to the bottom.

REFERENCES:
patent: 3103479 (1963-09-01), Ransohoff
patent: 3141830 (1964-07-01), Klepfer et al.
patent: 3467398 (1969-09-01), Bernard
patent: 5742655 (1998-04-01), Hertz et al.
patent: 6614869 (2003-09-01), Thibieroz et al.
patent: 6636580 (2003-10-01), Murakami et al.
patent: 0 353 170 (1990-01-01), None
patent: 0 421 868 (1991-04-01), None
patent: 2 728 097 (1996-06-01), None
patent: 97/48104 (1997-12-01), None
patent: 2004/001765 (2003-12-01), None
Patent Abstracts of Japan, vol. 014, No. 098 (P-1011), Feb. 22, 1990, Japan 01 304 392 A (Toshiba Corp), (Dec. 7, 1989).
Database WPI, Section Ch, Week 198746, Derwent Publications Ltd., London, GB; AN1987-325716, XP002228833 & JP 62 049950 B (Nippon Genshiryoku Jigyo KK), (Oct. 22, 1987).

Affiliated with

Also associated with

Rating

Cluster for adjusting a nuclear reactor core reactivity,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cluster for adjusting a nuclear reactor core reactivity,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cluster for adjusting a nuclear reactor core reactivity,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3975011