| 摘要 |
PURPOSE:To contrive to eliminate an accumulator by arranging an main bearing at the upper section of a compressor section arranged at the lower section of a hermetic case, and thereby concurrently connecting a crank shaft which has the main bearing penetrated through, with the compressor section by a suction pipe. CONSTITUTION:An electric motor section 2 is arranged at the upper section within a hermetic case 1, and a compressor section 5 is arranged at the lower section. And a main bearing 8 is arranged at the upper section of the compressor section 5, and a crank shaft 10 is concurrently penetrated through the inside of the main bearing 8. And the passage of intake gas communicates a gas throat 10a provided for the upper section of the crank shaft 10 with the compressor section 5 via a gas pocket 12 and a suction pipe 11. In addition, the main bearing 8 is immersed in refrigerating oil 14. This constitution allows gas retained in the low pressure space 13 of a hermetic case 1 to be sucked in the compressor section 5 in an oil-free condition. |
