Air flow management for cooking system
AssigneeEvo America, LLC
InventorsRobert A. Shingler, Joseph R. Shaw
Life of this patent
Estimating the term…
Abstract
Examples are disclosed that relate to recirculating ventilation systems for cooking appliances. One example provides a cooking appliance ventilation system, comprising a ventilation duct comprising an inlet aperture configured to receive cooking exhaust, a fan configured to pull the cooking exhaust through the inlet aperture and the ventilation duct, an ozone source configured to introduce ozone into the ventilation duct; and one more ozone mitigation components positioned within the ventilation duct downstream of the ozone source.
Claims19
A cooking appliance ventilation system, comprising:
- a ventilation duct comprising an inlet aperture configured to receive cooking exhaust;
- a fan positioned within the ventilation duct and configured to pull the cooking exhaust through the inlet aperture and the ventilation duct;
- an ozone source configured to introduce ozone into the ventilation duct upstream of the fan;
- and
- one or more ozone mitigation components positioned within the ventilation duct downstream of the ozone source.
A cooking appliance ventilation system, comprising:
- a ventilation duct comprising an inlet aperture configured to receive cooking exhaust;
- a fan positioned within the ventilation duct downstream of the inlet aperture;
- an ozone generator and an ozone outlet configured to introduce ozone into the ventilation duct upstream of the fan;
- and
- an ozone reduction catalyst located within the ventilation duct, the ozone reduction catalyst comprising a plurality of catalyst units arranged in a catalyst holder, each catalyst unit occupying a portion of a cross-sectional area of the ventilation duct.
A method of operating a cooking appliance ventilation system, comprising:
- drawing cooking exhaust into a ventilation duct via a fan positioned within the ventilation duct;
- introducing ozone into the ventilation duct upstream of the fan to oxidize one or more of grease and particulate matter in the cooking exhaust;
- filtering the cooking exhaust;
- reducing ozone in the ventilation duct via an ozone reduction catalyst located downstream of the fan;
- and
- outputting exhaust from the ventilation duct.
Dependencies are inferred from the claim text.