Patent ID: 7223943

Claim:
A method for improved fresh air supply in a cooking apparatus, comprising the steps of: providing a housing to circumscribe a cooking chamber as well as a fan chamber, the fan chamber being separated from the cooking chamber via at least a first flow guide element, the fan chamber having a fan with a fan wheel which comprises primary blades on its side facing the first flow guide element and auxiliary blades on its side facing a wall of the housing through which an axle of the fan wheel passes; providing said fan wheel for circulation of cooking atmosphere and suction of fresh air into the housing via a fresh air channel whose mouth runs into the housing through said housing wall separated from the axle of the fan wheel; guiding fresh air, sucked in through the fresh air channel, near the axle of the fan wheel by at least one second flow guide element which prevents a direct impingement of the fresh air on the auxiliary blades and prevents an angular momentum caused by the auxiliary blades from being impressed onto the fresh air; and guiding the fresh air from the axle of the fan wheel into the cooking chamber by a radial conveying effect of the auxiliary blades.