US 11,732,890 B2
Cooking appliance gas oven burner control during oven warm-up operation
Richard W. Cowan, Louisville, KY (US); and Cameron James Wyatt, Memphis, TN (US)
Assigned to MIDEA GROUP CO., LTD., Guangdong (CN)
Filed by Midea Group Co., Ltd., Foshan (CN)
Filed on Sep. 30, 2020, as Appl. No. 17/38,641.
Prior Publication US 2022/0099295 A1, Mar. 31, 2022
Int. Cl. F23N 1/00 (2006.01)
CPC F23N 1/007 (2013.01) [F23N 2227/02 (2020.01); F23N 2235/24 (2020.01); F23N 2241/08 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A cooking appliance, comprising:
a housing including an oven cavity;
a gas burner positioned to generate heat within the oven cavity;
a multi-level valve system configured to couple the gas burner to a gas supply and to regulate an output power level of the gas burner between a maximum output power level and at least one reduced output power level; and
a controller in communication with the multi-level valve system, the controller configured to, during an oven warm-up operation, control the multi-level valve system to operate the gas burner at the reduced output power level for at least a portion of the oven warm-up operation, wherein the controller is further configured to control the multi-level valve system to automatically change the output power level for the gas burner to a user-selected setting upon completion of the oven warm-up operation.