Abstract A burner for liquid fuel, such as oil, including a centrally disposed atomizing nozzle of the pressure type which receives the liquid fuel and atomizes it under pressure and sprays the atomized droplets forwardly and outwardly causing a substantial proportion of them to impinge against an annular wall of high porosity and of a nature to give a capillary effect so that the droplets are absorbed immediately and the oil thereof is spread throughout the area of the annular wall which serves as the inner wall of the combustion chamber. Primary air for combustion is supplied directly around the centrally disposed pressureatomizing nozzle and secondary air for combustion is supplied directly through the porous and absorbent annular wall. A substantial part of the atomized oil, that of the smaller droplets, is burned as it passes from the atomizing nozzle and travels toward the surrounding wall in suspension and the remainder, that of the larger droplets, is burned at the exposed inner surface of the annular wall after it reaches it and is absorbed and spread over the area of the wall for evaporation and combustion.
Inventors
👤 Edgar S Downs
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-27 12:38
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
A liquid fuel burner comprising an outer peripheral wall of a porous and absorbent nature providing a combustion chamber which extends axially and is open at its outer end, said combustion chamber being provided with an axially disposed inlet at its inner end, a pressure-type atomizing oil burner nozzle located for cooperation with the inlet to direct atomized oil droplets inwardly through the inlet and angularly outwardly into contact with said peripheral wall, and means for supplying air under pressure into said combustion chamber and including means for directing primary air for combustion around said nozzle and through said inlet and means for directing secondary air for combustion inwardly through said peripheral wall, said peripheral wall being of annular form and the inlet opening and associated nozzle being disposed at the axis thereof, said means for supplying secondary air for combustion being an annular air passageway surrounding said wall and including means for forcing air into the inner end thereof and wall means spaced outwardly of said inner end for directing flow of air inwardly through said porous wall toward the axis thereof, said means for directing primary air around said nozzle through said inlet comprising a collar surrounding said opening and said nozzle, said collar having a plurality of angularly spaced openings, means for producing flow of air axially toward said collar, and angularly spaced vanes around the collar for directing the air into said respective openings.
Claim 2
Dependent Claim
238 words
A liquid fuel burner comprising an outer peripheral wall of a porous and absorbent nature providing a combustion chamber which extends axially and is open at its outer end, said combustion chamber being provided with an axially disposed inlet at its inner end, a pressure-type atomizing oil burner nozzle located for cooperation with the inlet to direct atomized oil droplets inwardly through the inlet and angularly outwardly into contact with said peripheral wall, and means for supplying air under pressure into said combustion chamber and including means for directing primary air for combustion around said nozzle and through said inlet and means for directing secondary air for combustion inwardly through said peripheral wall, said peripheral wall being of annular form and the inlet opening and associated nozzle being disposed at the axis thereof, said means for supplying secondary air for combustion being an annular air passageway surrounding said wall and including means for forcing air into the inner end thereof and wall means spaced outwardly of said inner end for directing flow of air inwardly through said porous wall toward the axis thereof, said means for directing primary air around said nozzle through said inlet comprising a collar surrounding said opening and said nozzle, said collar having a plurality of angularly spaced openings, means for producing flow of air axially toward said collar, and angularly spaced vanes around the collar for directing the air into said respective openings.