| 摘要 |
The apparatus comprises a cold air supply, box A, and a hot air supply. The hot and cold air are mixed (in box B) and then forced through a cone shaped portion and over a delta-shaped panel D to cause the air to move in a vortex or swirling motion as it leaves the apparatus. A coned nozzle C allows the direction of airflow to be selected. The entire apparatus is portable and may be mounted on a trailer. |
