TY - JOUR
T1 - Active magnetic bearing for a liquid nitrogen pump
AU - Kamioka, Yasuharu
AU - Kajikawa, Kazuhiro
AU - Hirai, Hirokazu
AU - Ozaki, Shinsuke
AU - Nakamura, Taketsune
AU - Imagawa, Shinsaku
AU - Ishiyama, Atsushi
N1 - Funding Information:
This work was partly supported by ALCA, JST
Publisher Copyright:
© 2019 Published under licence by IOP Publishing Ltd.
PY - 2019/6/3
Y1 - 2019/6/3
N2 - The development of a liquid nitrogen submerged pump for HTS applications is underway. A cryogenic active magnetic bearing is the main component of the pump. The bearing makes the maintenance interval of the pump longer than 3years such interval is essential for the pump in commercial use of HTS applications such as long HTS cable. The bearing will be set in a HTS motor shaft of the pump. In experiments, a shaft without an HTS motor is used and the bearing was immersed in liquid nitrogen. The rotation of the shaft is made by a high-speed motor at room temperature. The bearing consists of two radial bearings and one axial bearing. The shaft was floating by the bearing and was rotated by the motor at room temperature. The steady rotation speed of 2,000, 3,000, 4,000 and 5,000 rpm were achieved, and the rotation speed satisfied the design speed of the pump which is 5,000rpm.
AB - The development of a liquid nitrogen submerged pump for HTS applications is underway. A cryogenic active magnetic bearing is the main component of the pump. The bearing makes the maintenance interval of the pump longer than 3years such interval is essential for the pump in commercial use of HTS applications such as long HTS cable. The bearing will be set in a HTS motor shaft of the pump. In experiments, a shaft without an HTS motor is used and the bearing was immersed in liquid nitrogen. The rotation of the shaft is made by a high-speed motor at room temperature. The bearing consists of two radial bearings and one axial bearing. The shaft was floating by the bearing and was rotated by the motor at room temperature. The steady rotation speed of 2,000, 3,000, 4,000 and 5,000 rpm were achieved, and the rotation speed satisfied the design speed of the pump which is 5,000rpm.
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U2 - 10.1088/1757-899X/502/1/012153
DO - 10.1088/1757-899X/502/1/012153
M3 - Conference article
AN - SCOPUS:85065973587
SN - 1757-8981
VL - 502
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012153
T2 - 27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018, ICEC-ICMC 2018
Y2 - 3 September 2018 through 7 September 2018
ER -