| 摘要 |
<p>Variable flow fan with electronic control for fitting to the air intake of lorries in order to compensate for the pressure difference between the internal and external environment caused by combustion in which it is placed when the lorry is running. One of the advantages of the invention is that, by working on air at external temperature and not on smoke, it can be made with plastic blades without problems of deterioration. The flow is controlled by the user by varying the speed of rotation of the fan. <IMAGE></p> |
