Oven Appliance

Abstract

The present subject matter provides an oven appliance with a fluid analysis assembly fluidly mounted to a duct. The fluid analysis assembly includes a casing and a sensor array. A fluid inlet of the casing extends between the duct and a dilution chamber of the casing. An ambient inlet of the casing is contiguous with ambient air about the casing and the dilution chamber. The sensor array includes a plurality of fluid sensors positioned at the dilution chamber of the casing.

What is claimed is: 
     
         1 . An oven appliance, comprising:
 a cabinet defining a cooking chamber;   a duct extending from the cooking chamber of the cabinet and configured for receiving a fluid from the cooking chamber of cabinet;   an air handler configured for selectively drawing the fluid from the cooking chamber of the cabinet into the duct;   a fluid analysis assembly connected to the duct, the fluid analysis assembly comprising
 a casing defining a fluid inlet, an ambient inlet, a dilution chamber and a mixed fluid exit, the fluid inlet of the casing extending between the duct and the dilution chamber such that a portion of the fluid from the cooking chamber of the cabinet flows into the dilution chamber via the fluid inlet during operation of the air handler, the ambient inlet contiguous with ambient air about the casing and the dilution chamber such that the ambient air about the casing flows into the dilution chamber via the ambient inlet during operation of the air handler; and 
 a sensor array mounted to the casing and comprising a plurality of fluid sensors, the plurality of fluid sensors of the sensor array positioned at the dilution chamber of the casing, each sensor of the plurality of fluid sensors configured for measuring a different gas, vapor or combination of gases and vapors in the fluid from the cooking chamber. 
   
     
     
         2 . The oven appliance of  claim 1 , wherein the fluid inlet and the ambient inlet are positioned opposite each other about the dilution chamber. 
     
     
         3 . The oven appliance of  claim 2 , wherein the fluid inlet and the ambient inlet are aligned with each other across the dilution chamber. 
     
     
         4 . The oven appliance of  claim 2 , wherein the casing extends between a first end portion and a second end portion along a lateral direction, the fluid inlet and the ambient inlet positioned at the first end portion of the casing, the mixed fluid exit positioned at the second end portion of the casing. 
     
     
         5 . The oven appliance of  claim 4 , wherein the casing extends between a first side portion and a second side portion along a transverse direction that is perpendicular to the lateral direction, the fluid inlet positioned at the first side portion of the casing, the ambient inlet positioned at the second side portion of the casing, the mixed fluid exit positioned between the fluid inlet and the ambient inlet along the transverse direction. 
     
     
         6 . The oven appliance of  claim 4 , wherein the plurality of fluid sensors is positioned between the fluid inlet and the mixed fluid outlet along the lateral direction. 
     
     
         7 . The oven appliance of  claim 1 , wherein the fluid analysis assembly further comprises a control valve positioned at the ambient inlet of the casing, the control valve configured for selectively adjusting a flow of ambient air about the casing into the dilution chamber via the ambient inlet. 
     
     
         8 . The oven appliance of  claim 1 , wherein the ambient inlet is larger than the fluid inlet. 
     
     
         9 . The oven appliance of  claim 1 , wherein the plurality of fluid sensors comprises metal oxide semiconductor sensors. 
     
     
         10 . The oven appliance of  claim 9 , wherein the plurality of fluid sensors comprises at least three sensors. 
     
     
         11 . An oven appliance, comprising:
 a cabinet defining a cooking chamber;   a duct fluidly coupled to the cooking chamber of the cabinet;   an air handler coupled to the duct and configured for selectively drawing a fluid from the cooking chamber of the cabinet into the duct;   a fluid analysis assembly connected to the duct, the fluid analysis assembly comprising
 a casing defining a fluid inlet, an ambient inlet, a dilution chamber and a mixed fluid exit, the fluid inlet of the casing contiguous with the duct and the dilution chamber, the ambient inlet contiguous with ambient air about the casing and the dilution chamber; and 
 a sensor array comprising a plurality of fluid sensors, the plurality of fluid sensors of the sensor array positioned at the dilution chamber of the casing, each sensor of the plurality of fluid sensors configured for measuring a different gas, vapor or combination of gases and vapors in the fluid from the cooking chamber. 
   
     
     
         12 . The oven appliance of  claim 11 , wherein the fluid inlet and the ambient inlet are positioned opposite each other about the dilution chamber. 
     
     
         13 . The oven appliance of  claim 12 , wherein the fluid inlet and the ambient inlet are aligned with each other across the dilution chamber. 
     
     
         14 . The oven appliance of  claim 12 , wherein the casing extends between a first end portion and a second end portion along a lateral direction, the fluid inlet and the ambient inlet positioned at the first end portion of the casing, the mixed fluid exit positioned at the second end portion of the casing. 
     
     
         15 . The oven appliance of  claim 14 , wherein the casing extends between a first side portion and a second side portion along a transverse direction that is perpendicular to the lateral direction, the fluid inlet positioned at the first side portion of the casing, the ambient inlet positioned at the second side portion of the casing, the mixed fluid exit positioned between the fluid inlet and the ambient inlet along the transverse direction. 
     
     
         16 . The oven appliance of  claim 14 , wherein the plurality of sensors is positioned between the fluid inlet and the mixed fluid outlet along the lateral direction. 
     
     
         17 . The oven appliance of  claim 11 , wherein the fluid analysis assembly further comprises a control valve positioned at the ambient inlet of the casing, the control valve configured for selectively adjusting a flow of ambient air about the casing into the dilution chamber via the ambient inlet. 
     
     
         18 . The oven appliance of  claim 11 , wherein the ambient inlet is larger than the fluid inlet. 
     
     
         19 . The oven appliance of  claim 11 , wherein the plurality of fluid sensors comprises at least one of a metal oxide semiconductor sensor, a radio frequency sensor, an electrochemical sensor or an infrared sensor. 
     
     
         20 . The oven appliance of  claim 19 , wherein the plurality of fluid sensors comprises at least three sensors.