| 摘要 |
PROBLEM TO BE SOLVED: To reduce the resonance noises of an oil supply pipe and the resonance noises of a crankshaft, generated in rotation of the oil supply pipe in a refrigerating machine oil. SOLUTION: A compressing element 2 and a motor driving element 3 are arranged in the state of being elastically supported in a hermetic container, and the compressing element 2 has a crank shaft 5 consisting of an eccentric portion 6 and a main shaft rotationally driven by the motor driving element 3, a balancing weight 12 provided in the eccentric portion 6 and a concentric oil supply pipe 13 rotated concentrically with the main shaft provided in the balancing weight 12, whereby the stirring operation of a refrigerating machine oil is controlled.
|
