| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rod-shaped heater that can reduce burning caused by lubricant oil on the heater surface of the rod-shaped heater, and to provide a turbo refrigerating machine. <P>SOLUTION: In the inside of the lubricant oil tank 10 of the turbo refrigerating machine, a rod-shaped heater 40, formed into a long shape to heat lubricant oil to a predetermined temperature, is arranged. In the heater body part 41 of the rod-shaped heater 40, a cross section, in which a width size is smaller toward the flowing direction of the lubricant oil, is formed into a flux line shape, and the flow velocity of the lubricant oil can be accelerated to a speed, at which the high-temperature of the lubricant oil does not stay on the heater side face 42, by a contracted flow action by a current plate 50. <P>COPYRIGHT: (C)2012,JPO&INPIT |
