US1603032A - Burner apparatus for liquid fuels - Google Patents

Description

Oct. 12 ,192e. ELZE ET-AL v 1,603,032

BURNER APPARATUS FOR LIQUID FUELS Filed Nov. 19, 1924 llllllllllll INVENTORS l Valter Elle and JiZYfrdFSe/IumaI In ATTVORNEY Patented Oct, 12, 1926.

UNITED STATES PATENT oF FlCE.

WALTER G. ELZE, OF WOODHAVEN, NEW YORK, AND ALFRED I. SCHUMANN, OF BAL- rmonn, ARYLAND, .nssrenons TO BROOKLYN, NEW YORK, A CORPORATIO HAUCK-MANUFAGTURING COMPANY, 01' N NEW YORK.

BURNER APPARATUS FOR LIQUTD FUELS.

Application filed November 19,1924. Serial No. 750,815.

The invention relates to liquid fuel burning apparatus and more especially to the burner nozzle thereof; and it has for its ob jecta novel type of burner whereb the diameter of the flame for a given ength is materially increased. A further object of the invention consists in so effecting the combustion of the liquid fuel that a much greater efliciency isobtained. These advantages are attained by imparting to the gaseous mixture and the resultant flame a whirling motion or helical movement about its longitudinal axis.

The nature of the invention, however, will best be understood when described in connection with the accompanying drawings, in which Fig. 1 is a longitudinal section thru the improved burner.

Fig. 2 is an end view thereof.

Fig: 3 is a part side elevation and longitudinal section illustrating a modification.

Referring'to the drawings, 10 designates a conical nozzle memberforming the preliminary combustion chamber for the gaseous fuel mixture which, in properly atomized condition, known manner, an opening 11 being provided therefor in the back plate 12 to which said nozzle 10 may be secured. Surrounding this nozzle is a cylindrical casing or hood 13, with tapered end portion or extension 14 beyond the end of the nozzle 10. This hood 13 rovides a suitable chamber into which air 1s admitted thru a series of equally spaced and circularly'disposed openings 15 at the rearward end, the same being tangentially directed into the main combustion chamber. A series of guide walls 16 over the respective openings 15 are provided to assist in directing the stream of inrushing air so that a definite whirl is produced about the nozzle 10, which whirl continues beyond the outlet 14: of the hood and for a considerable portion, if not the entirele ngth, aloi ig aflame om. his causes outwardly projected there the latter, due to contrifugal action, to ma terially increase its width; and, moreover, thru the intermixture a more perfect combustion is eflected.

The nozzle 10, also, is provided with a series of circularly disposed openings 20 near the back end thereof and thru which air is-admittedto assist in the prelimmary comis supplied thereto inany well-.

bustion, the final combustion being completed in the chamber formed by the hood structure 13'14. It has been found advantageous, furthermore, to provide a similar serles of tangentially disposed and equallyspaced openings 21 in the back plate 12 about the nozzle 10, the said openings being provided with guide Walls 22 and delivering air in awhirling condition into the interior of the chamber at the extreme inner end.

As shown in Figs, 1 and 2, the guide walls '16 pmojec-t outwardly from theperl hery of thehood 13; but in order to avoi having exterior projections from this member, the latter may be provided in its wall with a series of slots 25, as shown in Fig. 3, with wall or guide members 26 set within the body of the hood. The passageways thus formed are tangentially directed into the interior,

the air as in the case of the openings 15 being delivered thru the respective outlets 27 and in a whirling condition, which is subsequently imparted to the flame issuing from the mouth of the burner.

Ample air will thus be aflorded'for the combustion of the atomized oil not only within the nozzle member 10, but also within the chamber formed by the hood-1314 sur rounding said nozzle member; and a hot, efficient and large volumed flame results, the latter, furthermore, being projected outwardly from the tapered outlet portion 1 1 with a whirling motion about its longitudinal axis. 7

We claim 1. A burner for liquid fuels, comprising: a nozzle member for receiving and discharging atomized .fuel thru aforward axial opening and affording a preliminary combustion chamber; and a hood member surroundin said nozzle member and extending hood only and tangentially directedinto the interior of saidhood.

2. A burner for liquid fuels, comprising: a nozzle member for receiving and discharg-; ing atomized fuel thru a forward axial opening and affording a preliminary combustion 'substantlally beyond the outlet thereof to chamber; a hood member surrounding said nozzle member and extending substantially beyond the outlet thereof to form a main combustion chamber, said hood member having a contracted outlet opening axially alined with respect to the nozzle member opening and provided with a series of air openings circularly disposed about the nozzle member and at the rear of the hood only and tangentially directed into the interior of said hood; and a back plate closing substantially the rear of said hood member and having a series of circularly disposed openings therein and tangentially directed into the interior of the hood.

3. A burner for liquid fuels, comprising: a nozzle member for receiving and discharging atomized fuel thru a forward axial opening and affording apreliminary combustion chamber; a hood member surrounding a contracted outlet opening axially alined with respect to the nozzle member opening and provided with walled passageways circularly disposed within and tangentially directed into said hood, said passageways being circularly disposed about the nozzle member at the rear of the hood only and open to the atmosphere.

Signed at Brookl n, in the county of Kings and State of ew York, this 31st day of October, A. D. 1924:.

ALFRED F. SOHUMANN.

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