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Title: Internal core tightener

Abstract

An internal core tightener which is a linear actuated (vertical actuation motion) expanding device utilizing a minimum of moving parts to perform the lateral tightening function. The key features are: (1) large contact areas to transmit loads during reactor operation; (2) actuation cam surfaces loaded only during clamping and unclamping operation; (3) separation of the parts and internal operation involved in the holding function from those involved in the actuation function; and (4) preloaded pads with compliant travel at each face of the hexagonal assembly at the two clamping planes to accommodate thermal expansion and irradiation induced swelling. The latter feature enables use of a "fixed" outer core boundary, and thus eliminates the uncertainty in gross core dimensions, and potential for rapid core reactivity changes as a result of core dimensional change.

Inventors:
 [1];  [2]
  1. San Jose, CA
  2. (Rancho Santa Fe, CA)
Issue Date:
OSTI Identifier:
862581
Patent Number(s):
3964969
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
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
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
AT(04-3)-830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
internal; core; tightener; linear; actuated; vertical; actuation; motion; expanding; device; utilizing; minimum; moving; perform; lateral; tightening; function; key; features; contact; transmit; loads; reactor; operation; surfaces; loaded; clamping; unclamping; separation; involved; holding; preloaded; pads; compliant; travel; hexagonal; assembly; planes; accommodate; thermal; expansion; irradiation; induced; swelling; latter; feature; enables; fixed; outer; boundary; eliminates; uncertainty; gross; dimensions; potential; rapid; reactivity; changes; result; dimensional; change; radiation induced; thermal expansion; reactor operation; induced swelling; feature enables; accommodate thermal; irradiation induced; core reactivity; dimensional change; vertical actuation; internal core; device utilizing; key feature; core tightener; /376/976/

Citation Formats

Brynsvold, Glen V, and Snyder, Jr., Harold J. Internal core tightener. United States: N. p., 1976. Web.
Brynsvold, Glen V, & Snyder, Jr., Harold J. Internal core tightener. United States.
Brynsvold, Glen V, and Snyder, Jr., Harold J. Tue . "Internal core tightener". United States. https://www.osti.gov/servlets/purl/862581.
@article{osti_862581,
title = {Internal core tightener},
author = {Brynsvold, Glen V and Snyder, Jr., Harold J.},
abstractNote = {An internal core tightener which is a linear actuated (vertical actuation motion) expanding device utilizing a minimum of moving parts to perform the lateral tightening function. The key features are: (1) large contact areas to transmit loads during reactor operation; (2) actuation cam surfaces loaded only during clamping and unclamping operation; (3) separation of the parts and internal operation involved in the holding function from those involved in the actuation function; and (4) preloaded pads with compliant travel at each face of the hexagonal assembly at the two clamping planes to accommodate thermal expansion and irradiation induced swelling. The latter feature enables use of a "fixed" outer core boundary, and thus eliminates the uncertainty in gross core dimensions, and potential for rapid core reactivity changes as a result of core dimensional change.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {6}
}

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