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Title:
ROTARY FIELD ELECTROMAGNETIC PUMP HAVING FUNCTION FOR PREVENTING BACK FLOW
Document Type and Number:
Japanese Patent JP2009130996
Kind Code:
A
Abstract:

To achieve stabilized flow rate-delivery pressure characteristics by setting the thickness of a partially tubular channel in the radial direction and the operational conditions optimally.

In a rotary field electromagnetic pump wherein a channel 5 on the inflow side is connected to one end side of a partially tubular channel 1, a channel 6 on the outflow side is connected to the other end side thereof, and inductors 2 and 2' forming a field which moves rotationally from the channel 5 on the inflow side toward the channel 6 on the outflow side in the circumferential direction of the channel 1 are arranged in the partially tubular channel 1, thickness of the channel 1 in the radial direction from the inner circumferential side to the outer circumferential side thereof is set such that the ratio of flux density B/A on the inner circumferential side and the outer circumferential side becomes 70% or more. Alternatively, thickness of the channel 1 is set such that the ratio of flux density B/A on the inner circumferential side and the outer circumferential side of the channel 1 becomes 55% or more, and the rotary field electromagnetic pump is operated such that the slip value becomes 0.97 or less.


Inventors:
Miura, Kuniaki
Asaha, Makoto
Konakawa, Hiroyuki
Futagawa, Masatoshi
Haga, Katsuhiro
Wakui, Takashi
Takeno, Naofumi
Ogasawara, Toshihiko
Hagitani, Kazuhiko
Application Number:
JP2007000301417
Publication Date:
June 11, 2009
Filing Date:
November 21, 2007
Export Citation:
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Assignee:
JAPAN ATOMIC ENERGY AGENCY
SUKEGAWA ELECTRIC CO LTD
International Classes:
H02K44/06
Domestic Patent References:
JP2004254437A
JPS63253854A
Attorney, Agent or Firm:
北條 和由