Sealing Roots blower



The invention relates to a sealing Roots blower which comprises a housing, a driving shaft and a driven shaft, wherein the driving shaft and the driven shaft are supported in bearing holes of an input end and an output end of the housing via bearings respectively. The sealing Roots blower is characterized in that a framework oil seal and/or a sealing shaft sleeve are/is arranged between the bearing in the bearing hole of the housing at the input end and the housing; a sealing washer is arranged between the bearing in the bearing hole of the housing at the output end and the housing; and labyrinth sealing sections are arranged on shaft sections between the bearings in the bearing holes of the housing and the housing.




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