Air flow system for combination microwave and convection oven

Details Air flow system for combination microwave and convection oven Air flow system for combination microwave and convection oven

1979-12-19

1982-06-01

Reynolds, B. A.

Electric heating

Metal heating

Of cylinders

219 1055B, 219400, 219 1055D, 126 21A, H05B 664

Patent

active

043329926

ABSTRACT:
An air flow system for a combination microwave and electric convection oven wherein a single motor drives two fans to generate a movement of air in an oven cavity and a movement of air in an electrical component compartment. The fan moving the air in the electrical component compartment is positioned between the fan moving the air in the oven cavity and the motor to act as a thermal barrier and to protect the motor from the heated air in the oven cavity. A portion of the air in the electrical component compartment may be diverted to the oven cavity and subsequently exhausted from the oven. Simultaneously, an electrical heater may be de-energized with the result that the air in the oven cavity is heated by resistive losses from components in the electrical component compartment. By combining this diverted air flow with a minimum of microwave energy, many types of foods may be effectively dehydrated in a substantially shorter than normal period of time.

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