| 摘要 |
<p>The invention relates to an air inlet casing intended for supplying fresh air and recycled air to a heating, ventilation and/or air-conditioning system, including a circuit intended for supplying fresh and/or recycled air to at least one air-driving device, said casing further comprising a means (16, 17) intended for providing a flow of recycled air into said circuit, said means (16, 17) being capable of opening by pressure differential, said circuit being configured such that a pressure drop is created therein that at least temporarily generates said pressure differential.</p> |
