| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat radiation system capable of further improving radiation efficiency while suppressing an increase of cost. SOLUTION: The heat radiation system comprises an evaporation chamber 13 connected to a heating element such as an electron device 1, a refrigerant 4 which is housed in an inside of the evaporation chamber 13, absorbs heat from the electron device 1, and evaporates, a tapered nozzle 15 connected to the evaporation chamber 13 internally, and a turbine vessel 16 with the tapered nozzle 15 opened internally. The system is provided with a turbine propeller 6 rotating by a vapor flow of the refrigerant 3 ejected from the tapered nozzle 15, an inner magnet 8 concentric with the turbine propeller 6, and a fan propeller 12 pivotally supported on an outside of the turbine vessel 16 so as to freely rotate, and generating wind by rotation. The system is provided with an outer magnet 11 integrally supported on a side of the fan propeller 12, arranged by facing to the inner magnet 8, and magnetically coupled with the inner magnet 8. A maximum outer diameter of the turbine propeller 12 is 1.4 times as long as a maximum outer diameter of the outer magnet 11 or more. COPYRIGHT: (C)2007,JPO&INPIT
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