Device for actuating a nuclear reactor control rod
Patent
·
OSTI ID:5163580
A first assembly for low-speed translational displacement and dropping of a control rod comprises a leak-tight casing tube which communicates with the reactor vessel, a screw and nut system coupled to the control rod by means of the nut and a screw -retaining device which is capable of releasing the screw. In the event of accidental failure of the casing tube, upward displacement of the control rod and of the broken portion of the casing tube is limited by a second assembly comprising means for rotational locking of the screw drive rotor and calibrated elastic means for producing action on the rotor in opposition to the vertical thrust produced by failure of the casing tube.
- Assignee:
- Commissariat a l'Energie Atomique (France)
- Patent Number(s):
- US 4314882
- OSTI ID:
- 5163580
- Country of Publication:
- United States
- Language:
- English
Similar Records
Operating devices for control rods in a nuclear reactor
ROTARY CONTROL ROD AND ITS DRIVE DEVICE
DRIVE MEANS FOR REGULATING AND EMERGENCY CONTROL RODS IN HETEROGENEOUS NUCLEAR REACTORS
Patent
·
Tue Sep 18 00:00:00 EDT 1984
·
OSTI ID:6027261
ROTARY CONTROL ROD AND ITS DRIVE DEVICE
Patent
·
Tue Oct 31 23:00:00 EST 1961
·
OSTI ID:4730325
DRIVE MEANS FOR REGULATING AND EMERGENCY CONTROL RODS IN HETEROGENEOUS NUCLEAR REACTORS
Patent
·
Wed Oct 16 00:00:00 EDT 1963
·
OSTI ID:4694336