| 摘要 |
PURPOSE:To increase the contact surface between refrigerant and coil units and to improve the cooling efficiency, by superposing a spacer for leading the refrigerant to between the coil units, on a transverse spacer for defining a space between the coil units. CONSTITUTION:Guide spacers 24 are provided in transverse spaces 19 nd 20 at regular intervals in the circumferential direction thereof, while a spacer 27 having a small width than that of the guide spacer 24 is superposed on each guide spacer 24. The guide spacer 24 is shaped such that is end 29 is bent obliquely upwards and projects from the peripheries of inner and outer coils blocks 5 and 6. Refrigerant 21 flowing down through flow-down holes 23 is scattered over the upper surfaces of the inner and outer coil blocks 5 and 6. The refrigerant 21 flows down along the inner and outer peripheries of the inner and outer coil locks to reach the upper surface of the end 29 of the guide spacer 24 where it slides down. The refrigerant 21 then passes the upper surface of the stepped portion defined by the guide spacer 24 and the spacer 27 to be led to between disk coil units 15. In this manner, the area in which the refrigerant is contacted with the disk coil units 15 and 16 is substantially increased, and the disk coil units 15 and 16 are enabled to be cooled efficiently. |
