| 摘要 |
PURPOSE:To increase an area of radiation of a heat-exchange body, to reduce the resistance of ventilation and to prevent the generation of clogging by making the shortest pitch of fins on a circumferential pitch circle of said fins approximately constant. CONSTITUTION:When a centrifugal fan 14 is turned while tanks 3a, 3b are supplied with a fluid to be cooled by pipes 5a, 5b, the fluid to be cooled is cooled by cooling air through the fins 19a, 19b. Cooling efficiency is improved because tubes 18a, 18b are arranged zigzag. Direct transmission over the heat- exchange bodies 20a, 20b of external vibration and shocks can be prevented because packings 21, 22 are fitted among the heat-exchange bodies 20a, 20b and plates 1, 2. Tanks 3a, 3b, 4a, 4b are positioned easily because knocks 17 are formed to the tanks 3a, 3b, 4a, 4b. The actual spaces of the fins 19a, 19b are approximately equal even at any position of the heat-exchange bodies 20a, 20b because the shortest pitch of the fins 19a, 19b is made approximately equal. |
