An electrically heated convection oven with built-in rotisserie for rotisserie roasting, baking, broiling, defrosting, and dehydrating foodstuff is characterized by the use of two motors. One for operating a fan which rotates within the heating chamber to create high velocity air flow throughout...http://www.google.de/patents/US5801362?utm_source=gb-gplus-sharePatent US5801362 - Portable electric oven with fan and motor arrangement for improved heated air flow and motor cooling 
