Patent ID: 6607372
Filing Date: 2003-08-19
Classification: B03C,F04B,F04C,F25B

Abstract:
A compressor used in a refrigerating or air-conditioning system, using chlorine-free hydrofluorocarbon as the refrigerant either alone or in mixture, and packing an enclosed container with refrigerating machine oil compatible with the refrigerant, wherein a motor and a compressing mechanism are disposed in the enclosed container, the compressing mechanism includes a rotary shaft for transmitting rotation of the motor, an oil feed pump is provided in the rotary shaft, a communication hole for feeding refrigerating machine oil is formed in the rotary shaft, a passage having one end in contact with and extending downward from the communication hole is provided in the rotary shaft, the passage and the communication hole meeting at about a 45Â° angle to each other, and the other end of the passage is closed.