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Title: Temperature-dependent liquid metal flowrate control device

Abstract

A temperature-dependent liquid metal flowrate control device includes a magnet and a ferromagnetic member defining therebetween a flow path for liquid metal, the ferromagnetic member being formed of a material having a curie temperature at which a change in the flow rate of the liquid metal is desired. According to the preferred embodiment the magnet is a cylindrical rod magnet axially disposed within a cylindrical member formed of a curie material and having iron pole pieces at the ends. A cylindrical iron shunt and a thin wall stainless steel barrier are disposed in the annulus between magnet and curie material. Below the curie temperature flow between steel barrier and curie material is impeded and above the curie temperature flow impedance is reduced.

Inventors:
 [1]
  1. LaGrange, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
863219
Patent Number(s):
4125221
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G05 - CONTROLLING G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature-dependent; liquid; metal; flowrate; control; device; magnet; ferromagnetic; defining; therebetween; flow; path; formed; material; curie; temperature; change; rate; desired; according; preferred; embodiment; cylindrical; rod; axially; disposed; iron; pole; pieces; shunt; wall; stainless; steel; barrier; annulus; below; impeded; impedance; reduced; metal flow; pole pieces; curie temperature; control device; liquid metal; preferred embodiment; flow rate; stainless steel; flow path; rate control; metal flowrate; temperature flow; temperature-dependent liquid; flowrate control; pole piece; defining therebetween; cylindrical rod; /236/

Citation Formats

Carlson, Roger D. Temperature-dependent liquid metal flowrate control device. United States: N. p., 1978. Web.
Carlson, Roger D. Temperature-dependent liquid metal flowrate control device. United States.
Carlson, Roger D. Sun . "Temperature-dependent liquid metal flowrate control device". United States. https://www.osti.gov/servlets/purl/863219.
@article{osti_863219,
title = {Temperature-dependent liquid metal flowrate control device},
author = {Carlson, Roger D},
abstractNote = {A temperature-dependent liquid metal flowrate control device includes a magnet and a ferromagnetic member defining therebetween a flow path for liquid metal, the ferromagnetic member being formed of a material having a curie temperature at which a change in the flow rate of the liquid metal is desired. According to the preferred embodiment the magnet is a cylindrical rod magnet axially disposed within a cylindrical member formed of a curie material and having iron pole pieces at the ends. A cylindrical iron shunt and a thin wall stainless steel barrier are disposed in the annulus between magnet and curie material. Below the curie temperature flow between steel barrier and curie material is impeded and above the curie temperature flow impedance is reduced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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