发明名称 |
Centrifugal motor-compressor unit |
摘要 |
A centrifugal compressor unit includes a driving means for rotatably driving a rotor, and at least one compressor including a statoric body and an arrangement of blade wheels mounted on a shaft which is rotatably driven by the rotor in the statoric body. The group formed by the motor and/or each compressor being mounted in a common housing is sealed from the gas used by the compressor. The compressor unit also includes an arrangement of active bearings for axially and radially guiding the rotor and the driven shaft, and a means for cooling the driving means and the guiding bearings by withdrawing the gas used by the compressor at the outlet of a first compression stage. The cooling means includes a set of internal conduits for supplying the driving means and the bearings with cooling gas. The cooling gas flow in the motor and the cooling gas flow in the bearing is separated and then converge upstream of the first compression stage. |
申请公布号 |
US2007172363(A1) |
申请公布日期 |
2007.07.26 |
申请号 |
US20030552237 |
申请日期 |
2003.04.11 |
申请人 |
|
发明人 |
LABOUBE PIERRE;FRIEZ PATRICK;PUGNET JEAN-MARC;BONNEFOI PATRICE |
分类号 |
F04B17/00;F04D25/06;F04D29/58 |
主分类号 |
F04B17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|