Temperature-dependent liquid metal flowrate control device

Patent · Sun Jan 01 00:00:00 EST 1978

OSTI ID:863219

Carlson, Roger D ^[1]

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1. LaGrange, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4125221
• OSTI ID: 863219
• Country of Publication: United States
• Language: English

Related Subjects

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/