| 摘要 |
PROBLEM TO BE SOLVED: To reduce the amount of oil rise outside a closed vessel of a hermetic scroll compressor. SOLUTION: In the hermetic scroll compressor, a compression mechanism part 2 composed of a fixed scroll 5, swivel scroll 6 and the like are disposed on the upper part in a cylindrical closed vessel 1, an electric motor part 3 driving the compression mechanism and an oil reservoir 4 are disposed on the lower and bottom part respectively in the cylindrical closed vessel 1, a crank part of driving shaft 9 is connected to the swivel scroll 6, an intermediate part is held by a frame 7, and the lower end part lower than the electric motor part 3 is supported by a lower cover 22 integrally formed with the frame 7. Coolant gas containing lubricating oil is delivered from the compression mechanism 2 and passes through the electric motor part 3, and then, collides with the bottom part of the lower cover 22 to separate gas and oil and drops the oil from an oil passage 21 formed on the lower cover 22 to the oil reservoir 4. And then, the gas collides with the inner wall of the closed vessel 1 from a gas passage hole 20 to separate oil. Thus, lubricating oil going out of the compressor accompanying the delivered coolant gas, so-called oil rise, can be reduced. COPYRIGHT: (C)2003,JPO
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