| 摘要 |
A vent hood (18 fig 1) for use on a stove having a plurality of burners is positioned over the burners and comprises a housing (24 fig 4) and a plurality of air inlets 42,46,58 that draw air and vapours upwardly through the inlets and into the hood. The inlets are of slotted form, or alternatively a plurality of baffles are mounted in the hood. The hood includes an exhaust duct (64 fig 1) mounted either in a rear portion or mounted adjacent to the housing, which is operatively connected to suitable exhaust means such as an exhaust fan (68 fig 1). The hood may include a plurality of vanes (60 fig 6) mounted within, which may define independent air flow compartments 62A-D that may direct air from the inlets to the exhaust duct. The volume of air drawn through the air inlets may be equal to a volume of air exhausted through the exhaust duct, and thus provide a balanced flow. The hood may include a lip (59 fig 8) extending around its perimeter to contain the air and vapours, and the slots, where used, may have flared edges to minimise noise and turbulence, and may extend substantially around 360 degrees of the hood perimeter. The hood may also include a grease filter (52 fig 8), and exhaust air may be further conditioned by filtering, and heating or dehumidifying before discharge back into a kitchen. The hood may be supported by support means (16 fig 1). |
