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Title: Temperature actuated automatic safety rod release

Abstract

A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.

Inventors:
 [1];  [2];  [3]
  1. Wilmette, IL
  2. Brookfield, IL
  3. Naperville, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
866200
Patent Number(s):
4654192
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature; actuated; automatic; safety; rod; release; temperature-actuated; apparatus; disclosed; releasably; supporting; nuclear; reactor; comprising; upper; adapter; retention; means; drive; shaft; houses; bimetallic; supported; ledge; engages; pre-determined; increase; causes; deform; disengages; whereby; releases; core; upper adapter; safety rod; drive shaft; nuclear reactor; automatic safety; rod release; retention means; temperature actuated; /376/285/403/976/

Citation Formats

Hutter, Ernest, Pardini, John A, and Walker, David E. Temperature actuated automatic safety rod release. United States: N. p., 1987. Web.
Hutter, Ernest, Pardini, John A, & Walker, David E. Temperature actuated automatic safety rod release. United States.
Hutter, Ernest, Pardini, John A, and Walker, David E. Thu . "Temperature actuated automatic safety rod release". United States. https://www.osti.gov/servlets/purl/866200.
@article{osti_866200,
title = {Temperature actuated automatic safety rod release},
author = {Hutter, Ernest and Pardini, John A and Walker, David E},
abstractNote = {A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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