PURPOSE: To keep off a temperature rise in an enclosed type rotary compressor as well as to improve its compression efficiency ever so better, by letting dis charged gas out of the rotary compressor flowing back to the inside of a closed vessel after being intercooled, while leading the lubricating oil collected inside the vessel into the required lubricating spot by ejector action of the discharged gas.
CONSTITUTION: Discharge gas out of an enclosed type rotary compressor is emitted to the inside of a discharge cover 11, and fed to an intercooler 23 outside a closed vessel via an outlet pipe 18. The discharged gas cooled at the intercooler 23 is made to flow back to the inside the vessel by an injection pipe 24. At this time, the lower end of an oil feed pipe 22 is impregnated in lubricating oil, and since the injection pipe 24 is partially inserted into the opening part, the lubricating oil is fed to a lubricating passage 6a together with the discharge gas by ejector action of the discharged gas. The lubricating oil and the discharged gas reached up to the other end of a main shaft are almost separated to each inside the vessel, and the discharged gas alone is fed to a refrigerating cycle.
WADA TOMIO
SANO FUMIAKI
ISHIJIMA KOUJI
HIRAHARA TAKUHO
| JPS5952198B2 | 1984-12-18 | |||
| JP46003641U | ||||
| JP57204479B |