US1445208A - Oil burner - Google Patents

Description

Feb. 13, 1923. 1,445,208. c. B. FORWARD.

OIL BURNER.

FILED 050.313.1920.

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CHAUNCEY B. FOR`WARD, UF URBANA, OHIO.

OIL BURNER.

Application led- December 30, 1920. Serial JN0.' 433,981.

fication.

This invention comprises an oil burner which is particularly designed and constructed to produce a thorough admixture of combustibles and a wide-spreading sheet of flame for intensive heating uses in industrial furnaces and boilers, all substantially as herein showniand described and more' particularly pointed outin the claims.

In the drawing, Fig. 1 is a sectional view and side elevation' of my improved oil burner, Fig. 2 is a horizontal section and plan view of' the burner head. Figs. 3 and 4 are cross sections of the burner head `on lines 3 3, and @-4, respectively, of Fig. 2. Fig. 5 is a vertical section on the center line of the burner head. Fig. 6 is a front eleva tion of the burner head. .Fig-s. 7 and 9 are sectional views Aof two dierent forms of steam plugs adapted to Abe used in my burner, and Figs. 8 and 10 are front elevations of Figs. 7 andi), respectively. Fig. 11 is a perspective view of the burner head.

The burner comprises a T fitting 2 having a steam-delivery plug 3 screwed intol one end thereof. A valved supply pipe i connects with the outer end of plug 3 and the opposite or inner end has an axial discharge orifice 5 and a series of slanting outlets v6 adapted to deliver the steam spirally into the mixing chamber 7` of fitting 2 and through the relatively long round passage 8 of pipe 9 which extends forwardly from said fitting. The oil or combustible is fed into one side of chamberl 7V through valved pipe 10, and a vortex is created by the steam within chamber 7 and througout pas` sage 8 which promote-s thorough *admixtureV anda forward ow of the combustible up to the contracted throat 11 of the burner head 12 which is aiiixed to the outer end of pipe 9. Throat 11 comprises a narrow elongated vertical opening 14 through which the combustibles must flow together in a flat stream before escaping into a laterally fiaring mouth 15 extending horizontally across the vertical opening 14:. The walls 16. immediately opposite the front side of opening 14 slope sharply or incline steeply toward each other, while the continuing walls 17 taper or incline gradually toward the front end of the head to provide a narrow elongated mouth 18. The narrow opening 14 and the 60 narrow mouth 18 are thusplaced at right angles to each other, see Fig. 6, and the combustibles in passing through this head are first contracted to a thin vertical stream and are reformed to issue as a flat, thin horizontal stream of fan shape. The slanting walls 16 also provide separate diverging channels 19 of graduated size within the top and bottom sides of the Haring V mouth portion of the head through whic a portion of the combustibles must flow and whereby uniform distribution Iand a widespreading flame of fan shape is'eectively produced. Thus, a relatively small burner with a ymouth approximately two inches long will produce a sheetA of flame between three and four feet wide.

In operation, steam coming through the plug swirls in fitting 2 and takes up the oil in the vortex and mixes it thoroughly with the steam as it passes through the pipe. A long pipe promotes gassification and an even and steady fire, and if' superheated steam is used a much hotter fire is secured; the superheated steam converting the oil in a measure into gas. The fiame is fiat, spreads out evenly and completely fills the fire box or furnace, and the depression and channels in the flaring or fan-shaped portion of the head serves to spread the com- 9G,

bustible uniformly. The shape of the cast` ing vor head 12 on its outside need not conform tothe contour of the openings and passages within the'head.

In Fig. 7 the steam plug 3 is provided 95 with spiral ribs 2O and internal convolutions to give the steam a swirling motion, and in Fig. 9 a series of holes 6 are drilled on slanting lines to produce this swirling motion. In lieu of using a steam plug the steam pipe a may be connected directly to the T fitting 2 and a good mixture will still be obtained, and the oil can be fed to the ci"v y fitting either by erably by pump.

What I claim is:

1. An oil burner, comprising a burner nozzle having a oonstricted throat in the form of an elongated slot, and a fiar-ing mouth in open communication with each gravity or by pump, prefother and provided with deflecting channels at the juncture of said slot and mouth and open full length to said mouth.

2.. An oil burner, comprisingr a nozzle having a round entrance converging to a single narrow vertical delivery passage and a single flaring mouth open thereto and lying .in a horizontal plane in line with the axis of said entrance,

3. An oil burner, comprising a nozzle head having an entrance at one end and a flaring mouth with a narrow elongated outlet at its opposite end and a laterally contracted throat intermediate said ends and graduated channels bordering said mouth and open thereto at each side and at the juncture thereof with said throat.A

4f. An oil burner',"comprising a head havpaign, and State of Ohio, this 22d day of December, 1920.

CHAUNCEY B. FORWARD.

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