| 摘要 |
PURPOSE:To secure space efficiently by providing a rotor with holes of secondary conductors with different size for off setting unbalance weight of a compression mechanism as well as with the other hole for housing a crank shaft in order to eliminate balance weight of the rotor. CONSTITUTION:Secondary conductors 3b' made of alumidicast is provided through iron core 3a of a rotor 3 in order to connect their both ends to end rings 3e, 3f. Holes 3g' with sections having different length formed are arranged at equal intervals systematically on the periphery of the iron core 3a, and the secondary conductors 3b' are inserted into the respective holes 3g', so that unbalance weight of the rotor 3 may be maintained depending on the difference of specific gravity of the iron corer 3a and the secondary conductors 3b'. In other words, a crank shaft 9 is fitted in order to place the big hoes 3g' on the anti-piston side of bottom dead point of a piston of a compression mechanism 7. |
