Rotary compressor

Abstract

Abstract PURPOSE:To enable lubricating oil to be positively and readily supplied to slide portions by utilizing a reciprocating motion of blades for an oiling pump. CONSTITUTION:Rotation of a roller driving shaft 15 makes a roller 16 rotate eccentrically in a cylinder 14 to reciprocate blades 17. This reciprocating motion of the blades 17 produces pumping action in a closed space 20 behind the blades 17 to suck lubricating oil L into the closed space 20 and discharge it to a lubricating path 25. That is, when the blades 17 start to move forward, the closed space 20 is expanded to produce negative pressure so that a free valve 23 moves away from a communicating port 22 to open it and absorb the lubricating oil L into the closed space 20. When the blades 17 then starts to retreat, the lubricating oil L in the closed space 20 is supplied to respective slide portions through lubricating paths 25 positively and readily.

Inventors

• 👤 Takaki Kanazawa

Bibliographic Details