PURPOSE: To provide high reliability with high lubrication effect, and improve compression efficiency, by providing a gas vent hole above a center of an eccentric shaft of an oil reservoir container, so as to lubricate the eccentric shaft with a lubricating oil containing no discharge gas.
CONSTITUTION: A lubricating oil 8 stored in a closed container 1 by a discharge gas is fed to an oil reservoir container 11, while the discharge gas is collected at an upper portion of the oil reservoir container 11. When pressure in the oil reservoir container 11 becomes higher than that in the closed container 1, the discharge gas is discharged into the closed container 1 through a gas vent hole 11b and a gas vent valve 12 provided above a center of an eccentric shaft 4 of the oil reservoir container 11. Thus, the lubricating oil 8 only is present in the oil reservoir container 11, and the eccentric shaft 4 is lubricated by the lubricating oil 8 only. Accordingly, high reliability may be provided with high lubrication effect, and there is no possibility that the discharge gas passing through a bearing clearance is mixed with an induced refrigerant gas, thereby improving compression efficiency.
SHINODA SHIGERU
SAKAINO YOSHIKI
MURAMATSU SHIGERU
| JPS5332336U | 1978-03-20 |