COMPRESSOR Russian patent published in 2015 - IPC F04C18/02 F04C29/02 

FIELD: machine building.

SUBSTANCE: invention relates to compressors. In the compressor (1) according to the invention the lubricant oil leakage from the lower end of the bearing (3) and its leakage from the casing (5) is prevented. The compressor (1) includes the compression mechanism (7), the power shaft (11), the bearing (3) for the power shaft (11) and the oil supply channel (29) implemented with a possibility of lubricant oil supply into the gap between the power shaft (11) and the bearing (3). The power shaft (11) includes a larger diameter part (11f) of the shaft, held by the bearing (3), and the smaller diameter part (11g) of the shaft, connected to the lower end of the larger diameter part (11f) of the shaft. The sealing part (10) configured for minimizing or prevention of oil leak from the bearing (3) includes the oil taking surface (26) facing towards the circular step surface (12) formed on the boundary between the larger diameter part (11f) of the shaft and the smaller diameter part (11g) of the shaft and separated from the step surface (12) by the gap.

EFFECT: invention is aimed at prevention of leak of the lubricant oil supplied to the bearing from the lower end of the bearing and oil leakage from the casing.

13 cl, 6 dwg