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US 2020/0333011 A1Published application
Combustion chamber for pellet grills
AssigneeW.C. Bradley Co.
InventorsMALLIK AHMED, BRUCE ROBERTS, RAMIN KHOSRAVI RAHMANI, ANTHONY HAMILTON, SLEIMAN ABDALLAH
Life of this patent
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Abstract
A combustion chamber has an inner wall defining an inner chamber. The inner wall is perforated to admit combustion air into the inner chamber. The combustion chamber has an outer wall defining an outer chamber. The outer wall is perforated to admit combustion air from a pressurized air plenum to the inner wall. The inner and outer wall are spaced apart such that air may flow between the inner and outer walls.
Claims20
A combustion chamber comprising:
- an inner wall defining an inner chamber, the inner wall being perforated to admit combustion air into the inner chamber;
- an outer wall defining an outer chamber, the outer wall being perforated to admit combustion air from a pressurized air plenum to the inner wall;
- wherein the inner and outer wall are spaced apart such that air may flow between the inner and outer walls;
- and
- wherein the inner chamber has an open top to receive solid fuel for combustion in the inner chamber.
2 more elements
A cooking grill comprising:
- a cooking chamber having a cooking grate supported therein that is accessible by an openable lid;
- a firepot within the cooking chamber below the cooking grate;
- an air plenum providing pressurized combustion air to the firepot;
- and
- a fan that pressurizes the air in the plenum;
- wherein the firepot further comprises:
- an inner wall defining an inner chamber where fuel is combusted;
- and an outer chamber wall defining an outer chamber containing the inner chamber;
- wherein the outer chamber wall is affixed within the plenum and receives pressurized air from the plenum;
- wherein the inner and outer walls are spaced apart such that air may flow freely around the inner chamber within the outer chamber;
- and
- wherein the inner chamber is perforated to receive the combustion air from the outer chamber.
9 more elements
The cooking grill comprising:
- a cooking chamber having a cooking grate;
- and
- a firepot below the cooking grate and situated at least partially within an air plenum providing pressurized air to the firepot;
- wherein the firepot has an outer chamber defined by a perforated outer chamber wall in fluid contact with the pressurized air in the plenum;
- and
- wherein the firepot has an inner chamber within the outer chamber and defined by a perforated inner chamber wall, the inner chamber wall perforations being sized to prevent passage of unburned fuel pellets therethrough but to admit air flow from the outer chamber therethrough.
3 more elements
Dependencies are inferred from the claim text.