| 摘要 |
PROBLEM TO BE SOLVED: 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. SOLUTION: 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 densityΦB/ΦA 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 densityΦB/ΦA 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. COPYRIGHT: (C)2009,JPO&INPIT
|
