| 摘要 |
PURPOSE:To aim at a positive temperature drop by means of forced draft cooling, by installing a temperature detecting device, detecting a refrigerant temperature inside a water jacket, and also a fan controlling device stopping or driving a cooling fan. CONSTITUTION:A water jacket 1, a condenser 3 and a refrigerant feed pump 4 are all installed in an internal-combustion engine 1. A cooling fan 15 is adjacently installed in the condenser 3. A temperature sensor 9 detects a refrigerant temperature inside the water jacket 2. If a control unit 28 is more than the first setting temperature, the cooling fan 15 is kept in a state of being stopped, and when it is more than the second setting temperature, there is provided with a fan controlling device which drives the said cooling fan. Thus, a temperature drop is surely promoted by means of forced draft cooling. |
