PURPOSE: To improve freezing capacity and a ratio between freezing capacity and a consumption power even when a gap between a rotary shaft and a bearing is decreased by forming a recess-form lubrication oil reservoir in a gap between a rotary shaft inserted in the central part of the rotor of an electric motor part and the bearing part of a frame body pivotally supporting the rotary shaft.
CONSTITUTION: Lubricating oil stored at the bottom of a closed container is circulated to an electric motor part contained in the closed container and each lubrication part of a reciprocation compression part 4. In this case, in a bearing 10 mounted on a frame body 2 pivotally supporting the rotary shaft 11 of an electric motor part, a recess-form lubricating oil reservoir 21 is formed in the bearing 10 side in a gap between the rotary shaft 11 and the bearing. After lubricating oil sucked through a lubricating oil passage 20 formed in the rotary shaft 11 is stored in the recess-form lubrication oil reservoir 21 once, the lubricating oil is led out to respective lubrication parts for circulation. This constitution forms an excellent oil film even when an HFC refrigerant and ester lubricating oil are used and improves freezing capacity.
| JPS589985 | [Title of the device] Sealed type compressor |
| JPS57116180 | SWASH PLATE TYPE COMPRESSOR |
YOKOZUKA SUNAO
OYAMA TSUYOSHI
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