CONTROL ROD DRIVE
Patent
·
OSTI ID:4036208
A nuclear reactor is described in which the control rod drive is effected by pistons sliding in cylinders, the two ntact with a pressure chamber, in such a way that the piston movement is controlled by the difference between the pressures in these chambers. One of these pressure chambers may be constituted by the reactor pressure vessel. In a one form of drive the piston is fixed directly to the control rod. In a ontrol step by step motors driving or winding off a flexible organ by which the control rod is suspended. The step by step motor comprises two ratchet-wheel drives, one for each drive direction and each in contact with one of the pistons. On disengaement of the step by step motors, the control rod falls freely into the reactor core. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-015248
- OSTI ID:
- 4036208
- Report Number(s):
- FR 1204719
- Country of Publication:
- France
- Language:
- English
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