| 摘要 |
PURPOSE:To contrive the improvement of the cooling performance of a heat pipe by enclosing forcibly circulated cooling fluid between magnetic sealing devices. CONSTITUTION:A rotary shaft 1 containing a heat pipe 9 is projected from an end cover 8 mounted at the end section of an enclosed frame and a cylindrical container 18 is freely engaged with the projected shaft section. Next, magnetic sealing devices 12 forming magnetic circuits are provided at the opposite end sections in the cylindrical container respectively and are also inserted in the projected shaft section to encloses forcibly circulated cooling fluid between both magnetic sealing devices. In this way, the heat generated at a rotor 2 and a stator 3 is transferred to the radiation section of the heat pipe through the rotary shaft 1 and the heat pipe 9 to perform radiation with good efficiency. |
