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.
ASAHA MAKOTO
KONAKAWA HIROYUKI
FUTAGAWA MASATOSHI
HAGA KATSUHIRO
WAKUI TAKASHI
TAKENO NAOFUMI
OGASAWARA TOSHIHIKO
HAGITANI KAZUHIKO
SUKEGAWA ELEC
| JP2004254437A | 2004-09-09 | |||
| JPS63253854A | 1988-10-20 |