Oven with automatic open/closed system mode control
First Claim
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1. A food cooking oven comprising:
- an insulated housing including a door closing to define an interior cooking volume in a substantially sealed first state and opening to provide access to the cooking volume in a substantially unsealed second state;
a heater communicating with the cooking volume to heat the cooking volume;
a steam generator generating steam from a source of introduced water, being electronically actuable to receive a signal controlling a generation of steam;
a first damper positioned between the interior cooking volume and exterior atmosphere, and in the substantially sealed first state being electronically actuable to receive a signal controlling an opening of the damper to allow water vapor flow between the interior cooking volume and exterior atmosphere and providing a pressure-activated bypass allowing flow of water vapor between the interior cooking volume and the exterior atmosphere when a predetermined pressure difference between the cooking volume and the exterior atmosphere is reached; and
an electronic computer executing a program stored in memory to vary the signal to the damper according to user-entered data and to vary the signal to the steam generator according to user-entered data.
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Abstract
A commercial oven, such as a combination oven providing steam and convection heating, may provide for motorized dampers allowing the oven to move automatically between a closed-state high humidity operating mode and an open-state low humidity operating mode according to user input reflecting a desired cooking process. The dampers operate with a conventional steam trap and may provide integrated bypass valves preventing over or under pressure of the cooking volume.
235 Citations
18 Claims
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1. A food cooking oven comprising:
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an insulated housing including a door closing to define an interior cooking volume in a substantially sealed first state and opening to provide access to the cooking volume in a substantially unsealed second state; a heater communicating with the cooking volume to heat the cooking volume; a steam generator generating steam from a source of introduced water, being electronically actuable to receive a signal controlling a generation of steam; a first damper positioned between the interior cooking volume and exterior atmosphere, and in the substantially sealed first state being electronically actuable to receive a signal controlling an opening of the damper to allow water vapor flow between the interior cooking volume and exterior atmosphere and providing a pressure-activated bypass allowing flow of water vapor between the interior cooking volume and the exterior atmosphere when a predetermined pressure difference between the cooking volume and the exterior atmosphere is reached; and an electronic computer executing a program stored in memory to vary the signal to the damper according to user-entered data and to vary the signal to the steam generator according to user-entered data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification