Rotor type compressor and oil supply sealing structure thereof

The invention provides a rotor type compressor and an oil supply sealing structure thereof. The oil supply sealing structure comprises an air cylinder cover, a lower air exhaust and sound eliminationcover, a tray and sealing gaskets. The air cylinder cover is provided with an annular boss, limiting protrusions are arranged on the inner edge of the annular protrusion, the sealing gaskets sleeve the limiting protrusions, the sealing gaskets abut against the annular boss through the tray, the lower air exhaust and sound elimination cover is fixedly connected with the air cylinder cover, and thelower air exhaust and sound elimination cover abuts against the tray. According to the oil supply sealing structure, the phenomenon that the sealing gaskets disengage can be avoided, the sealing performance can be guaranteed, the oil absorption effect can be improved, and mounting deformation of a movement can be reduced. 本发明提供了一种转子式压缩机及其供油密封结构，该供油密封结构包括气缸盖、下排气消声盖、托盘以及密封垫圈，所述气缸盖具有环状凸台，所述环状凸台的内边缘设有限位凸起，所述密封垫圈套设于所述限位凸起外，所述托盘