Magnetically-actuated isolated rod couplings for use in a nuclear reactor control rod drive
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United States of America Patent
Stats
-
Sep 8, 2020
Grant Date -
Jan 18, 2018
app pub date -
Jul 11, 2017
filing date -
Jul 13, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Control rod drives include linearly-moveable control elements inside an isolation barrier. Control rod drives move the control element through a motor and rotor powering a linear screw internal to an isolation barrier. Induction coils may generate magnetic fields and be moveable across a full stroke length of the control element in the reactor. The magnetic fields hold closed a releasable latch to disconnect the control elements from the linear drives. A control rod assembly may join to the control element. The control rod assembly may lock with magnetic overtravel latches inside the isolation barrier to maintain an overtravel position. Overtravel release coils outside the isolation barrier may release the latches to leave the overtravel position. Operation includes moving the magnetic fields and releasable latch together on opposite sides of an isolation barrier to drive the control element to desired insertion points, including full insertion by gravity following de-energization.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- F16B Class
- 1909 Applications Filed
- 1291 Patents Issued To-Date
- 67.63 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16B Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
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|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 8, 2028 |
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