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Title: DIRECT CURRENT ELECTROMAGNETIC PUMP

Abstract

An improved d-c electromagnetic pump is presented in which the poles, and consequently the magetic gap at the poles, are tapered to be wider at the upstream end. In addition, the cross section of the tube carryiQ the liquid metal is tapered so that the velocity of the pumped liquid increases in the downstream direction at a rate such that the counter-induced voltage in the liquid metal remains constant as it traverses the region between the poles. This configuration compensates for the distortion of the magnetic field caused by the induced voltage that would otherwise result in the lowering of the pumping capacity. This improved electromagnetic pump as practical application in the pumping of liquid metal coolants for nuclear reactors where conventional positive displacement pumps have proved unsatisfactory due to the high temperatures and the corrosive properties of the liquid metals involved.

Inventors:
Issue Date:
OSTI Identifier:
4304921
Patent Number(s):
2811923
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
NSA Number:
NSA-12-007007
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; COOLANTS; CORROSION; ELECTRIC POTENTIAL; ELECTROMAGNETIC PUMPS; HIGH TEMPERATURE; INDUCTION; LIQUIDS; MAGNETIC FIELDS; METALS; PATENT; REACTORS; TUBES; VELOCITY

Citation Formats

Barnes, A H. DIRECT CURRENT ELECTROMAGNETIC PUMP. United States: N. p., 1957. Web.
Barnes, A H. DIRECT CURRENT ELECTROMAGNETIC PUMP. United States.
Barnes, A H. Fri . "DIRECT CURRENT ELECTROMAGNETIC PUMP". United States.
@article{osti_4304921,
title = {DIRECT CURRENT ELECTROMAGNETIC PUMP},
author = {Barnes, A H},
abstractNote = {An improved d-c electromagnetic pump is presented in which the poles, and consequently the magetic gap at the poles, are tapered to be wider at the upstream end. In addition, the cross section of the tube carryiQ the liquid metal is tapered so that the velocity of the pumped liquid increases in the downstream direction at a rate such that the counter-induced voltage in the liquid metal remains constant as it traverses the region between the poles. This configuration compensates for the distortion of the magnetic field caused by the induced voltage that would otherwise result in the lowering of the pumping capacity. This improved electromagnetic pump as practical application in the pumping of liquid metal coolants for nuclear reactors where conventional positive displacement pumps have proved unsatisfactory due to the high temperatures and the corrosive properties of the liquid metals involved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1957},
month = {11}
}