公开(公告)号：US09677707B2

公开(公告)日：2017-06-13

申请号：US14135291

申请日：2013-12-19

Applicant: ALSTOM Renewable Technologies

Inventor： Pierre Pasquet

IPC: F16N7/38 ,  F16N29/00 ,  F16N7/40 ,  F03D80/70 ,  F16C33/66

CPC classification number: F16N7/385 ,  F03D80/70 ,  F16C33/6674 ,  F16C2360/31 ,  F16N7/40 ,  F16N29/00 ,  F16N2250/04 ,  F16N2250/40 ,  Y02E10/722

Abstract: A lubrication system is disclosed for a bearing assembly, the bearing assembly having at least one bearing. The lubrication system may comprise a pump circuit, an injection circuit, an extraction circuit and at least one three-way valve. The pump circuit may comprise at least a pump. The injection circuit may provide lubricant to the bearing during an injection mode of operation. The extraction circuit may extract lubricant from the bearing during an extraction mode of operation. A flow combination topology of the first three-way valve may allow operation of the lubrication system in the injection mode or in the extraction mode or in both modes simultaneously.