Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Moderator rod containing burnable poison and fuel assembly utilizing same










Image Number 17 for United States Patent #5416813.

A moderator rod provided with a burnable poison and disposed in a fuel assembly of a reactor core comprises an outer tube, an inner tube disposed in the outer tube, the outer and inner tubes constituting a double tube structure between which an annular section is formed, and a burnable poison charged in said annular section. A containing amount of the burnable poison per unit area of the annular section is distributed at least one of peripheral direction and axial direction of the double tube structure of the inner and outer tubes. A fuel assembly of a nuclear reactor comprises an upper tie plate, a lower tie plate, a number of fuel rods supported at their upper ends by the upper tie plate and at their lower ends by the lower tie plate and filled up in their inner spaces with a plurality of fuel pellets, at least one of moderator rods containing burnable poison in various states and a channel box. The moderator has an outer tube and an inner tube disposed coaxially in the outer tube. An area of a metal, ceramics or thermet containing the burnable poison is formed at a portion except for portions having axial length corresponding to 1/24 to 1/12 length of the fuel effective length from the upper and lower ends thereof.








 
 
  Recently Added Patents
Adhesive structure of optical device, adhesion method, and optical pickup device
(4950
Non-visual presentation of information on an electronic wireless device
Methods and systems for sending messages regarding an emergency that occurred at a facility
Device and method for quantizing and inverse quantizing LPC filters in a super-frame
Liquid crystal display and method of driving the same
Photographic printing paper and method of making same
  Randomly Featured Patents
Rotary feeder for flowable materials
Connection device
Easy-open container having directionally-oriented label tear
Endoscope probe system having confocal optical systems
Television receiver with switchable chrominance signal filter
Protection of turbine casings
Method for controlling a pipe bending machine
Dish drain rack
Pressure regulating valve for automotive fuel system
High-pressure rotary seal