US1111109A - Liquid-fuel burner. - Google Patents

Description

eo i h'iyahog-a here invented a ne*H -r nroyerner'it in Liquiddlnel h ehe following is :i speciiple the invention l d best inerte f1 'ed applying :nat vuisl'i it from einer 'L' inreiition, relating us dil fuel burners, has regar l more I to burners for uti -he iydroearbon oils, such :is lier lGl'rl 0 e adeped for use on steam fiutoiueoiles und in various other siuetions we it is desired to provide u more or u. extensive heating are- 1. under Conditions or eonihusiiion quit, "'iieene from those d nue-es und ret.Fm

wing in incl v advised kerosene and the ie entio-n, tiren, is the burnl reby an extended ,'us -ueh or with a liquid one f raporizution like gasolene. eeoiiiplislnnert of this und re- 'l inv-e. ri eonsists of the fully described und purvented outV in the claims.

eniiexed drawings und the following Miou set forth in detail certain meeh- :neuns eonsticuting, however, but one furious ineeliunifful forms in which the Iiple of the invention may be used.

annexed flrewingj1-Figuie l is elevation oi e steam generator hay` ins: associated ther with u burner embody ing; iny several improvements; Fig. 2 is a Yei'icel sectional view of such generetor ner miren on line F 1g, 3 i0* the burner Wh other 1 nlain or 1': e Side elevational burner :fornire nilemeiieary nu" use is open for a, burner ofv embodying the invention, such dis-A dieeted by the. ine

, lot burners which l utilize along With roregoing n n and supplementary ulreeoy been indicated that by improved burner in directes- :eiuion with a, seam generator, it is not une to imply that such association is necinor tha other uses for the burner, en t'o heet such a steam generator, are

available Accordingly, no more dethe generetors structure are shown y, und the generator coil A e in diugrzinnna'eic form. It Will i nod, however, that the generator l the li-ssh boiler type, the Water enteru the upper end a of the coil and passeur, ehe form olfsuperheated steam, er end a. Such eoil is suitably d in u insulating casing A over the low oody 01": the moin burner B which used in the present instr-nce to heat the ruine. 'The easing Af is of usuel form eX- oepe that a chamber a2 is provided in the e portion thereof, said chamber com- .r Lenting a?, one end a3 Withthe atmosphere, while at the other end a duct or oor 'hut ai leads downwardly and terminates udD4 cent lo ehe outer end or' the inlet tube b ol the mehr burner body. The top o of .eueh niuin burner is in the forro of a hat,

vglute resting on the body proper and has u plurality ot raised hollow ribs of general Circular forni wherein are provided a number oit closely arranged apertures b2, prefer ably in the form of narrow slits through which the combustible mixture is designed ro escape from the. burner body and then be ignited. The lower portion of the duct e* ts closely against the outer end of the inlet tube oso es to Communicate directly therewith. Such lower duct end, furthermore, is provided with en extension a5 into which projects the end of un atomizer or fuel injector C. (SeeAFigs. l and The Abody of such atomizer receives and supports the ends of two pipes c and c re'- spoctively connected with the steam pipe a lending; from the generator coil A, and with :t source ot liquid fuel supply, preferably un ege" mnh D wherein the liquid fuel, as lient. under simple atmospheric ends of such 'two pipes iproach each other as hurried with orifices 110 nus when steam is admitted ift passes with high velocity across the end of pipe c', and is drawn through the latter pipe by the Vacuum thereby caused. Such oil is atoniized by the steam jet end then discharged elong with the' latter across the lower eudof the duct ai, through the inlet tube o, and into the hollow A.urner body B. Incidentally Yto sueh'disjclia-ree of the atomized fuel into the burner body, air in suoieut quantity is drawn through the duet sind intermingled therewith to forni aproper combustire mixture, which thereupon rises through the apertures in the top of the burner to be ignited. lWhen the apparatus is in operajtion, the airthus sup lied to form the comhustive mixture, is o Viously preheated by its passage through chamber a? across the -top of vthe ierator, and thus assists in maintaining e fuel in the vaporized sto/te which it is .oe-.used to assume by the high Iteuipelet'ure oi the steam utilized in atoin- 12mg the seme.

Adjacent to the inlet tube o whereby the Combustive mixture is thus admitted into the burner body, but located :t trifle above the edge of the burner, locate e second or supplementary burner E, which preferably 'takes the form. of e flattened nozzle suoli as illustrated in Figs. 4, 5 'and 6. The discharge end of such nozzle is removed some inches from au yopening e formed in the V generator casing :it the point in question7 and of Cousiiilerbly larger area than the nozzle, so that as the fuel is discharged from the latter across the top of the main burner E, a suiiieient quantity of air is drown along tb ewith to rerder the ture a eoinbus e. one. The constriction of thisburner very similar ie ot' the etomizer provided in connection man burner, save that Compressed air forced through a pipe e from a second tank D", or other suitable source -is utilized therein iu place of supe; .ted steam. Oil from. the sume tank D as that used for the main burner is drawn through :i second pipe e that enters the under side of the nozzle. The discharge end of the nozzle is flattened, spreading out in urlilie form, so as to iusure the distribution oiZ the fuel mixture over subsuutislly the entire top oi the mainbeing presented as merely typical of sev, eral `forms of burner available for use ui this connection. Such pilot burner, however, is preferably adapted to utilize thev saine heavy fuel that is employed in the 'ma-rn and supplementary burners.

This may either be supplied under pressure or be drawn in by the effect of the atomizing .air jet. In the irst case I maintain e small body l of the oil in the lower portion of the compressed air' tank D. The oil thus supplied (through e. pipe f7) is Vaporized in an outer annular chamber f of the burner body F through a Central opening f in which the blast is discharged from the nozzle f2. The second pilot burner F (Fig. 8) has been more especially designed for 'use in the connection in hand aud consists of a. shell f3, closed atthe rear end save for a series of apertures f4, intel Which shell SOl projects an atomizer f5 as shown. Theoper-v I ation of this atomizer is substantially the seme as that of 'the supplementary burner E, compressed air being supplied thereto' through e pipe f, and oil under-amies plieric pressure through e pipe f8. Such pilot burner, Whatever its form is kept lighted during the operation of the epperatus, as need not be explained. Assuming, however, that both the ether'burners are out, in order to start theepperatus, I first turn on the supply of oompreed tir lo the second or dietely ignited from the pilot burner and quielzly causes the formation of sufcient steem in 'the lower section or the generator coil to permit the atomizer for such mais burner te be put in operation. At the seme tin such second burner also heats the ail that passes through chamber c and ducts u." and is then adinixed with the itemized fuel.

The general operation of the main burner having been described, it need merely be noted in conclusion that after such burner has' been started the supplementary burner is of course turned oii. In the tzourse of the .normal operation of the apparatus, then',

:1. suliieienlf hezulo' steam 1s available, to permit resumption of such mein burners operation at :any time, the pilot burner serving whenever. it is supplied. The apparatus, in other words, provides for the immediate rekindiing of the niainburner after any reasonable interruption suoli as may be in- @ident to the-usuel Control, whether automutir or manual, or" the supply of fuel to said burner,

7While injv burner as should be evident from the foregoing deseription of its construction zuid inode of operation, is vparticular"f adaptable for use Witha steam-gem' il is. of course, not essential that supplementary burner.v `The blast discharged therefrom 1s 1mme' g the hot air or superheated steam for: irs-s with the burner he derived -from. sich lo ignite the eombustive mixture my ins/@mim eempoye instead of the @ne eApaedy cha-lge being mad@ as 45 regards h@ mechanism herein lsc'sed, Ei-m, 'the :nej-L pmved fus sans." stated by any fme' of su. Gpefatmn 'si' 1^' si su A. lquc :ue urner, comprising a b01- ow cywlual casing farming' a ccmbxus- Jian @L L@ an aperuef piste at ons @nd Gf. said casing? a bume body bala mauzef plate sindv fomng therewith s. E Alxng camillas?? an inlet subs conneced "king @lambs-, am atomt@ schag'e nt@ saf inlet Liens for resp s 3 suppy- Si? and s @ashamed sesm t@ is for heating ai? and suppyidg Auch heated ai? o said comlut, 65

-2, lqu ue burner, comprising s t() said atom- 75 1*; ne and o said casing alb-. 1 sud: combustnn sing cozmecec said 55 r

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