发明名称 AXELTAETNING
摘要 A shaft seal for a gas pumping device comprising a mechanical seal (5,6) and a labyrinth seal in form of a sliding bearing (4). A chamber (7) between the mechanical seal and the sliding bearing is fed with lubricant for the bearing at a pressure being higher than the gas pressure on the other side of the mechanical seal so that there is no leakage of gas past the mechanical seal.
申请公布号 SE459203(B) 申请公布日期 1989.06.12
申请号 SE19830006626 申请日期 1983.12.01
申请人 ATLAS COPCO AB NACKA 发明人 G J E * DAEYAERT
分类号 F04B39/00;F04B39/02;F04C27/00;F16C33/74;F16J15/34;F16J15/40 主分类号 F04B39/00
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