CONTROL ROD DRIVE, TESTING METHOD AND DEVICE OF CONTROL ROD DRIVE, INSPECTION DEVICE OF CONTROL ROD DRIVE, STORAGE METHOD AND APPARATUS OF CONTROL ROD DRIVE, AND TORQUE TRANSPORT UNIT

摘要

PROBLEM TO BE SOLVED: To improve reliability in a magnetic joint for transferring a drive torque without any contact in a control rod drive. SOLUTION: In the magnetic joint comprising a first joint element 31 and a second one 32 incorporating a plurality of magnets each, sleeves, namely coverings 57, 58, are provided to cover each magnet in each joint element watertightly or airtightly. A sleeve, namely a covering 59, is provided further to cover at least one portion of each magnet inside the coverings watertightly or airtightly. COPYRIGHT: (C)2007,JPO&INPIT