发明名称 Monodirectional impeller with flexible vanes
摘要 A monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor, having vanes which are deformable at least along part of their extension so as to change their curvature, when loaded, in one direction of rotation, so that the power required for rotation in that direction is greater than the maximum power that can be delivered by the motor.
申请公布号 US6988873(B2) 申请公布日期 2006.01.24
申请号 US20030731555 申请日期 2003.12.09
申请人 ASKOLL HOLDING S.R.L. 发明人 MARIONI ELIO
分类号 F04D29/28;F04D13/02;F04D13/06;F04D15/02;F04D29/24 主分类号 F04D29/28
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