| 摘要 |
A variable capacity compressor for supply an appropriate amount of oil to frictional areas of a rotary shaft(40) or compression unit(20) regardless of a variation in the rotating speed of the rotary shaft . The compressor includes the refrigerant compression unit and a drive unit(30) disposed in a hermetic container(10) having an oil storage space(11), the rotary shaft having an end extending to the oil storage space, an oil flow path(42) formed in the rotary shaft, an oil pickup member(60) secured to the lower end of the rotary shaft to pick up and move the oil into the oil flow path by centrifugal force of the rotary shaft, and pickup blades(71b and 72b) provided in the oil pickup member. The number of the pickup blades that actually perform an oil pumping operation while being immersed in the oil is variable in inverse proportion to the rotating speed of the rotary shaft. |
