| 摘要 |
The pump contains a varied impeller in the pump casing for the compression and delivery of an oil-gas mixture from the low to high pressure side of the pump. An oil separator is located, from which at least one lubrication duct (20) extends through the pump casing for oil supply to the impeller lubrication points. The lubricant duct comprises a self-stopping valve. It is movable from its closed to the open position by the oil-gas mixture flowing out from the pump compression chamber. |
