Back to results
US 11,796,182 B2Granted
Secondary venting arrangement for gas oven cooking appliance
AssigneeMidea Group Co., Ltd.
InventorsRichard W. Cowan, Felix Conde Zelocuatecatl, Vern A. Neal
Life of this patent
Estimating the term…
Abstract
A cooking appliance includes a secondary venting arrangement within an oven cavity to supplement a primary venting arrangement with localized venting of combustion products adjacent a flame detector that detects a flame emitted by a gas burner disposed under the oven cavity. Doing so may assist with stabilizing the flame generated by the gas burner prior to establishment of steady state flow pattern within the oven cavity.
Claims20
A cooking appliance, comprising:
- a housing including an oven cavity;
- an exhaust vent disposed proximate a top of the oven cavity;
- a gas burner disposed under the oven cavity;
- a flame detector disposed adjacent to the gas burner and configured to detect a flame emitted by the gas burner;
- one or more fresh air inlets disposed underneath the oven cavity and configured to supply fresh air to the gas burner;
- a primary venting arrangement disposed in a lower portion of the oven cavity, the primary venting arrangement configured to vent combustion products generated by the gas burner into the oven cavity and out the exhaust vent as a result of a steady state flow pattern established in the oven cavity after the oven cavity has been warmed by heat generated by the gas burner;
- a flow divider disposed underneath the oven cavity and configured to separate the fresh air supplied by the one or more fresh air inlets from the combustion products vented through the primary venting arrangement;
- and
- a secondary venting arrangement disposed in the lower portion of the oven cavity and adjacent to the flame detector, the secondary venting arrangement configured to stabilize the flame detected by the flame detector prior to establishment of the steady state flow pattern in the oven cavity through localized venting of combustion products generated by the gas burner into the oven cavity adjacent the flame detector;
- wherein the secondary venting arrangement provides a shorter flow path around the flow divider than a flow path provided by the primary venting arrangement to reduce combustion product buildup in a volume adjacent the flame detector.
7 more elements
A cooking appliance, comprising:
- a housing including an oven cavity;
- an exhaust vent disposed proximate a top of the oven cavity;
- a gas burner disposed under the oven cavity;
- a flame detector disposed adjacent to the gas burner and configured to detect a flame emitted by the gas burner;
- a primary venting arrangement disposed in a lower portion of the oven cavity, the primary venting arrangement configured to vent combustion products generated by the gas burner into the oven cavity and out the exhaust vent as a result of a steady state flow pattern established in the oven cavity after the oven cavity has been warmed by heat generated by the gas burner;
- and
- a secondary venting arrangement disposed in the lower portion of the oven cavity and adjacent to the flame detector, the secondary venting arrangement configured to stabilize the flame detected by the flame detector prior to establishment of the steady state flow pattern in the oven cavity through localized venting of combustion products generated by the gas burner into the oven cavity adjacent the flame detector;
- wherein the secondary venting arrangement includes one or more vents formed proximate a bottom of the oven cavity, and wherein the one or more vents includes first and second vents respectively disposed proximate first and second sides of the gas burner.
5 more elements
A cooking appliance, comprising:
- a housing including an oven cavity;
- an exhaust vent disposed proximate a top of the oven cavity;
- a gas burner disposed under the oven cavity;
- a flame detector disposed adjacent to the gas burner and configured to detect a flame emitted by the gas burner, wherein the flame detector includes a flame sense rod;
- a primary venting arrangement disposed in a lower portion of the oven cavity, the primary venting arrangement configured to vent combustion products generated by the gas burner into the oven cavity and out the exhaust vent as a result of a steady state flow pattern established in the oven cavity after the oven cavity has been warmed by heat generated by the gas burner;
- and
- a secondary venting arrangement disposed in the lower portion of the oven cavity and adjacent to the flame detector, the secondary venting arrangement configured to stabilize the flame detected by the flame detector prior to establishment of the steady state flow pattern in the oven cavity through localized venting of combustion products generated by the gas burner into the oven cavity adjacent the flame detector.
4 more elements
Dependencies are inferred from the claim text.