| 摘要 |
In the path of the air current generated by the fan is a component of air-permeable material, onto which coolant is delivered by a sprayer. Copper swarf, gauze or wool, or coke, can be used as the permeable material, and a louvre can be provided to control the amount or air discharged from the housing. The permeable material can be incorporated in a vertical wall between inlet and outlet, and the housing can have a sloping floor with a drain at the bottom end. A filter can be mounted between the permeable material and the outlet, also a thermostat shutting off the coolant supply, which can be delivered by a pump from a tank and returned to the latter via the drain. |
