公开(公告)号：US20070269323A1

公开(公告)日：2007-11-22

申请号：US11752021

申请日：2007-05-22

申请人： Lei Zhou ,  Liping Zheng ,  Louis Chow ,  Jayanta S. Kapat ,  Thomas X. Wu ,  Krishna M. Kota ,  Xiaoyi Li ,  Dipjyoti Acharya

发明人： Lei Zhou ,  Liping Zheng ,  Louis Chow ,  Jayanta S. Kapat ,  Thomas X. Wu ,  Krishna M. Kota ,  Xiaoyi Li ,  Dipjyoti Acharya

IPC分类号： F04B17/00

CPC分类号： F04D29/059 ,  F04D25/082 ,  F04D27/0261 ,  F04D29/441 ,  F04D29/584 ,  F04D29/622

摘要： A high speed centrifugal compressor for compressing fluids includes a permanent magnet synchronous motor (PMSM) having a hollow shaft, the being supported on its ends by ball bearing comprising supports. A permanent magnet core is embedded inside the shaft. A stator with a winding is located radially outward of the shaft. The PMSM includes a rotor including at least one impeller secured to the shaft or integrated with the shaft as a single piece. The rotor is a high rigidity rotor providing a bending mode speed of at least 100,000 RPM which advantageously permits implementation of relatively low-cost ball bearing comprising supports.

摘要翻译： 用于压缩流体的高​​速离心式压缩机包括具有空心轴的永磁同步电动机（PMSM），在其端部由包括支撑件的滚珠轴承支撑。 永磁铁芯嵌入轴内。 具有绕组的定子位于轴的径向外侧。 PMSM包括转子，其包括固定到轴上的至少一个叶轮或与轴一体化的单个叶片。 转子是提供至少100,000RPM的弯曲模式速度的高刚度转子，其有利地允许实现包括支撑件的相对低成本的球轴承。

公开(公告)号：US07942646B2

公开(公告)日：2011-05-17

申请号：US11752021

申请日：2007-05-22

申请人： Lei Zhou ,  Liping Zheng ,  Louis Chow ,  Jayanta S. Kapat ,  Thomas X. Wu ,  Krishna M. Kota ,  Xiaoyi Li ,  Dipjyoti Acharya

发明人： Lei Zhou ,  Liping Zheng ,  Louis Chow ,  Jayanta S. Kapat ,  Thomas X. Wu ,  Krishna M. Kota ,  Xiaoyi Li ,  Dipjyoti Acharya

IPC分类号： F04B35/04 ,  F04B39/06 ,  H02K5/16 ,  H02K21/12

CPC分类号： F04D29/059 ,  F04D25/082 ,  F04D27/0261 ,  F04D29/441 ,  F04D29/584 ,  F04D29/622

摘要： A high speed centrifugal compressor for compressing fluids includes a permanent magnet synchronous motor (PMSM) having a hollow shaft, the being supported on its ends by ball bearing supports. A permanent magnet core is embedded inside the shaft. A stator with a winding is located radially outward of the shaft. The PMSM includes a rotor including at least one impeller secured to the shaft or integrated with the shaft as a single piece. The rotor is a high rigidity rotor providing a bending mode speed of at least 100,000 RPM which advantageously permits implementation of relatively low-cost ball bearing supports.

摘要翻译： 用于压缩流体的高​​速离心式压缩机包括具有中空轴的永磁同步电动机（PMSM），其在端部由球轴承支撑件支撑。 永磁铁芯嵌入轴内。 具有绕组的定子位于轴的径向外侧。 PMSM包括转子，其包括固定到轴上的至少一个叶轮或与轴一体化的单个叶片。 该转子是提供至少100,000RPM的弯曲模式速度的高刚性转子，其有利地允许实施相对低成本的球轴承支撑件。