Shaft seal with lubrication device,申请号US20050283581-传众专利搜索

Shaft seal with lubrication device

申请公布号：US2006071430(A1)

申请号：US20050283581

申请日期：2005.11.18

申请公布日期：2006.04.06

申请人：

FREUDENBERG-NOK GENERAL PARTNERSHIP

发明人：DOWNES MICHAEL D.;LAPLANTE ROBERT P.

分类号：F16J15/32

主分类号：F16J15/32

摘要：A shaft seal assembly for use with a reciprocating or rotating shaft includes a shaft seal, a lubricant-storing ring, and a retainer. The retainer and ring can be formed as a subassembly and then combined with a shaft seal. The seal includes an annular body portion, a first sealing lip portion, and a first pocket portion. The first sealing lip portion has a substantially uniform axial dimension and is adapted to sealingly engage a shaft. The first pocket portion includes a plurality of pockets, each having an opening toward the first sealing lip portion. The plurality of pockets are each adapted to collect a working fluid when the shaft axially displaces in a first direction and to dispense the working fluid when the shaft axially displaces in a second direction. The assembly provides a lubricated shaft and seal that improves the effective life of the shaft seal.