Development of a liquid nitrogen pump using superconducting bulk motor

Author

Komori, Mochimitsu ; Uchino, Koji

Author_Institution

Dept. of Appl. Sci. for Integrated Eng., Kyushu Inst. of Technol., Fukuoka, Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1659

Lastpage

1662

Abstract

A magnetically levitated stepping motor using high T_c superconductor has been studied. The levitated stepping motor consists of a cylindrical rotor with superconductors and a stator with eight electromagnets. The rotor measures 10 mm in diameter, 46 mm in length, and 18 g in weight. The superconductors of the rotor are zero-field-cooled in liquid nitrogen. The levitated rotor is driven by four-phase excitations. The rotor is successfully applied to a liquid nitrogen pump. The dynamic properties of the nitrogen pump are discussed in this paper.

Keywords

magnetic levitation; micropumps; stepping motors; superconducting machines; superconducting magnets; 10 mm; 46 mm; cylindrical rotor; dynamic properties; electromagnets; high T_c superconductor; levitated stepping motor; liquid nitrogen pump; magnetic levitation; stator; superconducting bulk motor; zero-field-cooled; Electromagnetic measurements; Electromagnets; Length measurement; Magnetic levitation; Microcomputers; Nitrogen; Rotors; Stators; Superconducting coils; Superconducting magnets; Liquid nitrogen pump; magnetic drive; stepping motor; superconducting levitation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.831027

Filename

1325122