Self-cleaning gas oven

Abstract

Abstract A GAS COOKING OVEN WHERE A MAIN STREAM OF THE HOT FLUE GASES GENERATED IN THE LOWER COMBUSTION CHAMBER IS PASSED AROUND THE OUTSIDE OF THE OVEN LINER, WHILE A SECONDARY STREAM OF FLUE GASES PASSES COMPLETELY THROUGH THE OVEN LINER AND THEN REJOINS THE SAID MAIN STREAM BEFORE THE FLUE GASES ARE PASSED THROUGH A HEAT EXCHANGER FOR EXTRACTING SOME OF THE HEAT THEREFROM. COOL ROOM AIR IS DRAWN INTO THE OVEN CABINET AND PASSED THROUGH THE HEAT EXCHANGER TO EXTRACT SOME OF THE HEAT FROM THE HOT FLUE GASES. AIR PASSAGES ARE FORMED IN HEAT TRANSFER RELATION WITH THE OUTER WALLS OF THE OVEN CABINET, AND THE HEATED AIR PASSES THROUGH THE PASSAGES AND PICKS UP MORE HEAT FROM THE WALLS OF THE CABINET BEFORE PASSING INTO THE COMBUSTION CHAMBER AS PREHEATED SECONDARY AIR FOR THE GAS BURNER MEANS. SOME COOL AIR BYPASSES THE HEAT EXCHANGER, AND PASSES DIRECTLY TO THE OVEN CABINET, WHILE OTHER COOL AIR MIXES WITH THE FLUE GASES DISCHARGING FROM THE HEAT EXCHANGER TO COOL THE GASES FURTHER BEFORE THE GASES ARE RETURNED TO THE KITCHEN ATMOSPHERE.

Inventors

• 👤 Wayne L Henderson
• 👤 Raymond L Dills

Bibliographic Details