| 摘要 |
<p>There is disclosed a plenum chamber (18) for use adjacent a diffuser (19) or the like of a heating, ventilating or air conditioning system The plenum chamber (18) includes a body (26) defining a space for receiving air supplied from a duct of the beating, ventilating or air conditioning system. An inlet (30) is connectable to the duct for delivering the air into the space. An outlet (29) is also provided through which air passes from the space to the diffuser (19). A flow disturbing element (32) is located within the space such that air delivered into the space through the inlet (30) impinges upon a surface of the flow disturbing element (32) to disturb the flow of said air in said space to facilitate mixing and pressurisation of said air within the space as the air passes to the outlet (29).</p> |
