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US 2004/0072115 A1Published application
Micro inshot burner
AssigneeCarrier Corporation
InventorsNinev Karl Zia, Chi Ming Ho, Brian A. Reeves
Life of this patent
Estimating the term…
Abstract
An inshot gas burner having an overall length of less than four inches that is capable of delivering between 5,000 and 5,800 Btus per unit length of burner per hour. The burner venturi section with a flame retainer positioned at its outlet that produces a firing rate of at least 9,900 Btus per inch of diffuser length.
Claims28
An inshot gas burner for use in a furnace that includes
- a venturi tube having a converging inlet section and a diverging outlet section that communicates through a restricted throat wherein said angle of divergence of the outlet section is greater than 4° and further includes a generally cylindrical flame retainer housing at the exit of said outlet section which houses a flame retainer,
- a spud holder is axially aligned with said venturi tube adjacent to the entrance to the inlet section wherein the axial distance as measured over the spud holder and the flame retainer housing of the venturi tube is less than 5.00 inches and the burner capacity is between 5,000 and 5,800 Btus per unit length of burner per hour.
An inshot gas burner unit for use in a furnace or the like that includes,
- a top plate having a plurality of axially aligned, spaced apart stampings, each of which describe the top half of a burner,
- a bottom plate having a plurality of axially aligned, spaced apart stampings, each of which describes the bottom half of a burner,
- means for joining together the two plates in face-to-face contact to establish a plurality of burners, each of which includes a spud holder having an entrance that is coextensive with one side edge of the cojoined plates, a venturi tube adjacent to the spud holder that includes a converging inlet section and a diverging outlet section that communicates through a restricted throat and an integral flame retainer housing at the exit of the diverging section that contains a cylindrical flame retainer, the exit of said flame retainer housing being coextensive with an opposing side edge of said plates, the angle of divergence of the outlet section being greater than 4°,
- said plates further including openings extending between the exit of each spud holder and the entrance to an adjacent venturi tube, and
- the axial length of each burner as measured over the spud holder and the flame retaining housing being less than 4 inches and each burner having a capacity of between 5,000 and 5,800 Btus per inches of length of burner per hour.
2 more elements
Dependencies are inferred from the claim text.