公开(公告)号：US09689389B2

公开(公告)日：2017-06-27

申请号：US14777312

申请日：2014-03-14

申请人： THERMO KING CORPORATION

发明人： Ryan Michael Fritts ,  Timothy James Ourada ,  Troy Wozniak

IPC分类号： F16J15/16 ,  F04B39/00 ,  F04C27/00 ,  F01C19/00 ,  F04B39/04 ,  F04C29/04 ,  F16J15/34 ,  F04C29/02

CPC分类号： F04C27/009 ,  F01C19/005 ,  F04B39/04 ,  F04B39/041 ,  F04C29/02 ,  F04C29/04 ,  F16J15/3404

摘要： Devices and methods for maintaining lubrication of a shaft seal of an open-drive compressor that is operating in a vacuum condition. The external side of the shaft seal allows retention of a volume of lubricant for extending the lifespan of the shaft seal for the open-drive compressor. The devices can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The devices can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).