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Title: Nuclear reactor control apparatus

Abstract

Nuclear reactor safety rod release apparatus comprises a ring which carries detents normally positioned in an annular recess in outer side of the rod, the ring being held against the lower end of a drive shaft by magnetic force exerted by a solenoid carried by the drive shaft. When the solenoid is de-energized, the detent-carrying ring drops until the detents contact a cam surface associated with the lower end of the drive shaft, at which point the detents are cammed out of the recess in the safety rod to release the rod from the drive shaft. In preferred embodiments of the invention, an additional latch is provided to release a lower portion of a safety rod under conditions that may interfere with movement of the entire rod.

Inventors:
 [1]
  1. (Cupertino, CA)
Publication Date:
OSTI Identifier:
864754
Patent Number(s):
US 4411857
Application Number:
06/254,709
Assignee:
Sridhar, Bettadapur N. (Cupertino, CA) OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nuclear; reactor; control; apparatus; safety; rod; release; comprises; carries; detents; normally; positioned; annular; recess; outer; held; drive; shaft; magnetic; force; exerted; solenoid; carried; de-energized; detent-carrying; drops; contact; surface; associated; cammed; preferred; embodiments; additional; latch; provided; portion; conditions; interfere; movement; entire; reactor safety; magnetic force; annular recess; release apparatus; reactor control; safety rod; preferred embodiments; drive shaft; apparatus comprises; nuclear reactor; preferred embodiment; force exerted; control apparatus; apparatus comprise; rod release; normally positioned; /376/976/

Citation Formats

Sridhar, Bettadapur N. Nuclear reactor control apparatus. United States: N. p., 1983. Web.
Sridhar, Bettadapur N. Nuclear reactor control apparatus. United States.
Sridhar, Bettadapur N. Tue . "Nuclear reactor control apparatus". United States. https://www.osti.gov/servlets/purl/864754.
@article{osti_864754,
title = {Nuclear reactor control apparatus},
author = {Sridhar, Bettadapur N.},
abstractNote = {Nuclear reactor safety rod release apparatus comprises a ring which carries detents normally positioned in an annular recess in outer side of the rod, the ring being held against the lower end of a drive shaft by magnetic force exerted by a solenoid carried by the drive shaft. When the solenoid is de-energized, the detent-carrying ring drops until the detents contact a cam surface associated with the lower end of the drive shaft, at which point the detents are cammed out of the recess in the safety rod to release the rod from the drive shaft. In preferred embodiments of the invention, an additional latch is provided to release a lower portion of a safety rod under conditions that may interfere with movement of the entire rod.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 25 00:00:00 EDT 1983},
month = {Tue Oct 25 00:00:00 EDT 1983}
}

Patent:

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