公开(公告)号：US20160169231A1

公开(公告)日：2016-06-16

申请号：US14729405

申请日：2015-06-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Vittorio Michelassi ,  Siddharth Navinchandra Ashar ,  Ismail Hakki Sezal ,  Rene du Cauze de Nazelle ,  Egidio Marotta ,  Ravishankar Balasubramanian ,  Mohamed Osama

IPC: F04D13/06 ,  F04D29/18 ,  F04D29/42 ,  F04D29/52 ,  H02K9/19 ,  F04D31/00 ,  H02K17/16 ,  H02K1/27 ,  H02K1/24 ,  F04D29/22 ,  F04D29/046

CPC classification number: H02K9/19 ,  F04D1/06 ,  F04D13/0673 ,  F04D13/0693 ,  F04D13/10 ,  F04D29/061 ,  F04D31/00 ,  H02K1/2786 ,  H02K7/14 ,  H02K16/00 ,  H02K17/16 ,  H02K19/103 ,  H02K21/22

Abstract: An electric pump powered by an electric motor having a stator disposed within a hollow rotor is provided. Impellers on the rotor outer surface extend into a fluid flow path defined by the pump. One or more torque-producing rotor sections are driven by a plurality of independently controllable stator sections disposed within the rotor cavity. The relative positions of the rotor and stator are maintained by a plurality of bearings configured to allow rotation of the rotor and defining a bearing span. The pump is configured such that the stator and rotor share the same bearing span. Such an arrangement reduces motor windage losses relative to conventional motors in which the rotor is disposed within the stator, owing to a reduction in the diameter of the air gap between the stator and the rotor. In addition, the peripheral speed of the pump is increased owing to an increase in the rotor diameter.

Abstract translation: 提供一种由具有设置在中空转子内的定子的电动机驱动的电动泵。 转子外表面上的叶轮延伸到由泵限定的流体流动路径中。 一个或多个扭矩产生转子部分由设置在转子腔内的多个可独立控制的定子部分驱动。 转子和定子的相对位置由构造成允许转子旋转并限定轴承跨度的多个轴承保持。 泵构造成使得定子和转子共享相同的轴承跨度。 由于定子和转子之间的空气间隙的直径减小，这种布置相对于其中转子设置在定子内的常规电动机减少了电机风阻损失。 此外，由于转子直径的增加，泵的圆周速度增加。

公开(公告)号：US10218247B2

公开(公告)日：2019-02-26

申请号：US14729405

申请日：2015-06-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Vittorio Michelassi ,  Siddharth Navinchandra Ashar ,  Ismail Hakki Sezal ,  Rene du Cauze de Nazelle ,  Egidio Marotta ,  Ravishankar Balasubramanian ,  Mohamed Osama

IPC: F04D1/06 ,  H02K9/19 ,  F04D31/00 ,  H02K1/27 ,  F04D29/06 ,  F04D13/06 ,  H02K16/00 ,  F04D13/10 ,  H02K7/14 ,  H02K17/16 ,  H02K21/22 ,  H02K19/10

Abstract: An electric pump powered by an electric motor having a stator disposed within a hollow rotor is provided. Impellers on the rotor outer surface extend into a fluid flow path defined by the pump. One or more torque-producing rotor sections are driven by a plurality of independently controllable stator sections disposed within the rotor cavity. The relative positions of the rotor and stator are maintained by a plurality of bearings configured to allow rotation of the rotor and defining a bearing span. The pump is configured such that the stator and rotor share the same bearing span. Such an arrangement reduces motor windage losses relative to conventional motors in which the rotor is disposed within the stator, owing to a reduction in the diameter of the air gap between the stator and the rotor. In addition, the peripheral speed of the pump is increased owing to an increase in the rotor diameter.