主权项 |
1. An apparatus for preparing food comprising:
a housing; a food preparation chamber, in the housing, comprising:
an inner wall defining a food receiving space with an air entry aperture and an air discharge aperture; a fan configured to move a flow of hot air successively through the air entry aperture, the food receiving space and the air discharge aperture, and an air guide passage for returning the flow of air from the air discharge aperture towards the air entry aperture separate from the food receiving space, wherein the housing comprising: a cooling air channel; and a hot air vent configured to exhaust hot air from the food preparation chamber outside the housing, said hot air vent comprising:
an opening accessible from the food preparation chamber;an exit accessible from the outside the housing; anda constricted section, between and the opening and the exit, having a reduced cross-sectional area; wherein the constricted section comprises:
an outlet to the cooling air channel, wherein a region of low pressure is formed at the outlet and a flow of cooling air is drawn along the cooling air channel into the hot air vent. |