| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a deep-layer mixture-processing device, which secures driving power and sufficient cooling capability as required for a drive part, while giving further consideration to environment measure. <P>SOLUTION: A drive part 24, when it is within an in-air lifting section, is enforcedly air-cooled with cool air Ac introduced by a fan 36 of an air-based cooling system 26 with a warmed up air Ah being discharged out of the drive part 24. While the air-based cooling system 26 follows movement of the drive part 24 only within the in-air lifting section, the drive part 24, upon having descended into an in-water lifting section, is cooled with the surrounding water in the submerged condition. Cooling the drive part 24 by air-based and water-based cooling systems when being in air and in water respectively secures required cooling capability. Further, using an electric motor as power source of the fan 36 of the air-based cooling system 26 shows consideration to the environment. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
