Premix burner for warm air furnace
First Claim
1. A burner assembly for use in a warm air furnace comprising:
- a cooling air box for receiving air;
a premix burner for receiving air-fuel premix, the premix burner being positioned within and spaced apart front the cooling air box; and
a burner face assembly defining a front end of the premix burner, the burner face assembly having a first plate positioned on top of a second plate, the second plate positioned on top of a third plate, each plate having a plurality of burner openings, each burner opening in each plate being aligned with a corresponding burner opening in each of the other plates;
wherein the burner openings of the second plate are larger in diameter than the burner openings of the third plate, and the burner openings of the third plate are larger in diameter than the burner openings of the first plate; and
wherein air-fuel premix is pulled through the premix burner, air is pulled through the cooling air box to cool the premix burner, and flames are projected from each of the burner openings of the burner face assembly for transferring heat within the warm air furnace.
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Accused Products
Abstract
A burner assembly for use in a warm air furnace. The burner assembly has a cooling air box for receiving air and a premix burner for receiving air-fuel premix positioned within and spaced apart from the cooling air box. The burner assembly also has a burner face assembly defining a front end of the premix burner. The burner face assembly includes a first plate positioned on top of a second plate, and a third plate positioned underneath the second plate. Each plate of the burner face assembly has a plurality of aligned burner openings. In the burner assembly, air-fuel premix is pulled through the premix burner, air is pulled through the cooling air box to cool the premix burner, and flames are projected from each of the burner openings of the burner face assembly for transferring heat within the warm air furnace.
65 Citations
18 Claims
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1. A burner assembly for use in a warm air furnace comprising:
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a cooling air box for receiving air;
a premix burner for receiving air-fuel premix, the premix burner being positioned within and spaced apart front the cooling air box; and
a burner face assembly defining a front end of the premix burner, the burner face assembly having a first plate positioned on top of a second plate, the second plate positioned on top of a third plate, each plate having a plurality of burner openings, each burner opening in each plate being aligned with a corresponding burner opening in each of the other plates;
wherein the burner openings of the second plate are larger in diameter than the burner openings of the third plate, and the burner openings of the third plate are larger in diameter than the burner openings of the first plate; and
wherein air-fuel premix is pulled through the premix burner, air is pulled through the cooling air box to cool the premix burner, and flames are projected from each of the burner openings of the burner face assembly for transferring heat within the warm air furnace. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A burner assembly for use in a warm air furnace comprising:
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a cooling air box for receiving air;
a premix burner for receiving air-fuel premix, the premix burner being positioned within and spaced apart from the cooling air box; and
a burner face assembly defining a front end of the premix burner, the burner face assembly having a first plate positioned on top of a second plate, the second plate positioned on top of a third plate, each plate having it plurality of burner openings, each burner opening in each plate being aligned with a corresponding burner opening in each of the other plates, and a plurality of carry over openings positioned between the burner openings, each carry over opening in each plate being aligned with a corresponding curry over opening in each of the other plates;
wherein the burner openings of the second plate are larger in diameter than the burner openings of the third plate, and the burner openings of the third plate are larger in diameter than the burner openings of the first plate; and
wherein air-fuel premix is pulled through the premix burner, air is pulled through the cooling air box to cool the premix burner, a flame is produced at one burner opening and carried over to the other burner openings by the carry over openings, and the flames being projected from each of the burner openings of the burner face assembly transfer heat within the warm air furnace. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A burner assembly for use in a warm air furnace comprising:
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a cooling air box for receiving air;
a premix burner for receiving air-fuel premix, the premix burner being positioned within and spaced apart from the cooling air box;
a premix flow distribution plate having a plurality of distribution holes positioned within the premix burner; and
a burner face assembly defining a front end of the premix burner, the burner face assembly having a burner face plate positioned on top of and adjacent to a center restriction plate, the center restriction plate being positioned on top of and adjacent to a rear restriction plate, each plate having a plurality of burner openings, each burner opening in each plate being aligned with a corresponding burner opening in each of the other plates, and a plurality of carry over openings positioned between the burner openings, each carry over opening in each plate being aligned with a corresponding carry over opening in each of the other plates;
wherein the burner openings of the center restriction plate are larger in diameter than the burner openings of the rear restriction plate, and the burner openings of the rear restriction plate are larger in diameter than the burner openings of the burner face plate; and
wherein air-fuel premix is pulled through the premix burner, air is pulled through the cooling air box to cool the premix burner, and flames are projected from each of the burner openings of the burner face assembly for transferring heat within the warm air furnace. - View Dependent Claims (15, 17)
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16. The assembly of claim 16, further comprising a bypass flow distribution plate positioned between the cooling air box and the premix burner, the bypass flow distribution plate having a plurality of distribution holes for distributing the cooling flow of air surrounding the premix burner.
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18. A burner assembly for use in a warm air furnace comprising:
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a premix burner for receiving air-fuel premix; and
a burner face assembly defining a front end of the premix burner, the burner face assembly having a first plate positioned on top of a second plate, the second plate positioned on top of a third plate, each plate having a plurality of burner openings, each burner opening in each plate being aligned with a corresponding burner opening in each of the other plates;
wherein the burner openings of the second plate are larger in diameter than the burner openings of the third plate, and the burner openings of the third plate are larger in diameter than the burner openings of the first plate; and
wherein air-fuel premix is pulled through the premix burner, and flames are projected from each of the burner opening of the burner face assembly for transferring heat within the warm air furnace.
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Specification