Convection oven
First Claim
1. A convection oven comprising:
- a housing having an oven cavity and an oven door for access to the oven cavity;
at least one air channel located on a first cavity wall of the oven cavity;
an air blower for sending heated air to the at least one air channel; and
a shelf assembly separating the oven cavity into an upper, intermediate, and lower cooking chamber, the shelf assembly comprising;
at least one inlet configured to receive a portion of the heated air from the at least one air channel;
a bottom plenum surface defining a bottom of the upper cooking chamber and including a plurality of upper air outlets, the upper air outlets being configured to direct a portion of the heated air received through the at least one air inlet through a first lateral pathway and upwards into the upper cooking chamber;
a top plenum surface defining a top of the intermediate cooking chamber and including a plurality of lower air outlets, the lower air outlets being configured to direct a portion of the heated air received through the at least one air inlet through the first lateral pathway and downwards into the intermediate cooking chamber;
a bottom plenum surface defining a bottom of the intermediate cooking chamber and including a plurality of upper air outlets, the upper air outlets being configured to direct a portion of the heated air received through the at least one air inlet through a second lateral pathway air conduit and upwards into the intermediate cooking chamber;
a top plenum surface defining a top of the lower cooking chamber and including a plurality of lower air outlets, the lower air outlets being configured to direct a portion of the heated air received through the at least one air inlet through the second lateral pathway and downwards into the upper cooking chamber;
wherein the first and second lateral pathways decrease in cross-section as the heated air moves away from the at least one air inlets;
wherein the first and second and second lateral pathways have a curved wall to provide decreasing cross section wherein the cross section decreases at a decreasing rate as the heated air moves away from the at least one air inlet.
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Accused Products
Abstract
A convection oven having one or more intermediate air plenums is disclosed. An intermediate air plenum placed within an oven cavity defines the bottom of an upper cooking chamber and the top of a lower cooking chamber. Each intermediate air plenum comprises a left side air inlet for receiving heated air from a left side air channel located on a left side cavity wall of the oven cavity, a right side air inlet for receiving heated air from a right side air channel located on a right side cavity wall of the oven cavity, a top plenum surface including a plurality of top air outlets configured to direct a portion of the heated air upwards, and a bottom plenum surface including a plurality of bottom air outlets configured to direct a portion of the heated air downwards. The top and bottom plenum surfaces are preferably shaped to optimize even distribution of heated air flow into the oven cavity.
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Citations
18 Claims
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1. A convection oven comprising:
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a housing having an oven cavity and an oven door for access to the oven cavity; at least one air channel located on a first cavity wall of the oven cavity; an air blower for sending heated air to the at least one air channel; and a shelf assembly separating the oven cavity into an upper, intermediate, and lower cooking chamber, the shelf assembly comprising; at least one inlet configured to receive a portion of the heated air from the at least one air channel; a bottom plenum surface defining a bottom of the upper cooking chamber and including a plurality of upper air outlets, the upper air outlets being configured to direct a portion of the heated air received through the at least one air inlet through a first lateral pathway and upwards into the upper cooking chamber; a top plenum surface defining a top of the intermediate cooking chamber and including a plurality of lower air outlets, the lower air outlets being configured to direct a portion of the heated air received through the at least one air inlet through the first lateral pathway and downwards into the intermediate cooking chamber; a bottom plenum surface defining a bottom of the intermediate cooking chamber and including a plurality of upper air outlets, the upper air outlets being configured to direct a portion of the heated air received through the at least one air inlet through a second lateral pathway air conduit and upwards into the intermediate cooking chamber; a top plenum surface defining a top of the lower cooking chamber and including a plurality of lower air outlets, the lower air outlets being configured to direct a portion of the heated air received through the at least one air inlet through the second lateral pathway and downwards into the upper cooking chamber; wherein the first and second lateral pathways decrease in cross-section as the heated air moves away from the at least one air inlets; wherein the first and second and second lateral pathways have a curved wall to provide decreasing cross section wherein the cross section decreases at a decreasing rate as the heated air moves away from the at least one air inlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A convection oven comprising:
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a housing having an oven cavity and an oven door for access to the oven cavity; an air channel located on a cavity wall of the oven cavity; an air blower for sending heated air to the air channel; and an interior air plenum assembly defining upper and lower cooking chambers, the interior air plenum comprising; an air inlet configured to receive a portion of the heated air from the air channel; a top plenum surface defining the top of an upper cooking chamber and including a plurality of lower air outlets, the air outlets being configured to direct the heated air received through the air inlet and downwards into the upper cooking chamber; a bottom plenum surface defining a bottom of the upper cooking chamber and including a plurality of upper air outlets, the upper air outlets being configured to direct a portion of the heated air received through the at least one air inlet through a lateral pathway and upwards into the upper cooking chamber; and a top plenum surface defining a top of a lower cooking chamber and including a plurality of lower air outlets, the lower air outlets being configured to direct a portion of the heated air received through the air inlet through the lateral pathway and downwards into the lower cooking chamber; a bottom plenum surface defining a bottom of the lower cooking chamber and including a plurality of upper air outlets, the upper air outlets being configured to direct a portion of the heated air received through the air inlet and upwards into the lower cooking chamber; wherein the lateral pathway has a curved wall to provide decreasing cross section as the heated air moves away from the air inlet; wherein the cross section decreases at a decreasing rate as the heated air moves away from the air inlet.
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Specification