US941479A - Oil-burner. - Google Patents

Description

APPLIOATION FILED SEPT. 27, 1907.

J. WEINTZ. OIL BURNER.

2 SHEETS-SHEET 2.

ED STATES Para einen.

shcon wnrurz, or CLEVELAND, CHIC, AssrGNon :to THE s'rRoNC, CARLISLE a HArfL Mom) COMPANY, CF CLEvnLANn, CHIC, A CCRPoRArIoN or CHIC.

ornsunu'nat.

' einem..

Speeificati.on` of Letters rPatent.vl Application led Se'ptember 27, 1907. Serial No.,394,86.

` Patented Nov. 3&1969.

To all 'whom 'it may concern:

Be it known that-I, J Aeon `Wn1NTz, citizenl of the United States, resident of-Cleveland, county of Cuyho a, Stateof Ohio,l have .n invented a 'newun useful'Im rovementv ih Oil-Burners, of which the fo lowing is' a specification, the principlev of the invention bein herein explained and the best mode in whicl l havecontempla'ted applying that 1o principle, so as' to distmguish 1t from other inventions. l' This invention relates to an improved form ofburner for use in connection with melting and 1re-heating furnaces and the like. ASaid inventionrelates more articularly t'o burners of this type designed) to employ a liquid uel, for example, ordinar kero sene or other hydro-carbon oilsgan' 'it'has as its 'object the provision of a burner that willbe of simple Construction and'withal productive Ci a maximum heating eiect for the amounty of'fuel consumed. y i To the accom lishme'nt of these and' re latedobjects sai' invehtiomthen, consists of. the meansv hereinafter Ffullyj described 'and particularly pointedv Cut'in the claims.'-`

The annexed drawings and the following description setfortli in, detail certain mech anism embodying the' invention, 'such disclosed means eonstitutin however',b1 1't one of various mechanical Crms in which the principle of the4 invention may be used. '1.

j In said annexeddrawings: Figure 1l is an'y axialI cross section# of a burner embodying my several improvements; Fig.'- 2'is a@ side elevation of such burner; Fi 3 is a ffront elevation of the same; and 1g. 4 is rear elevation, partly in section, thereof. The base lof a burner consists ofa' cham'- 40 ber A, formed with a flange a whereby it is adapted to be secured to the furnace wall,l or wherever desiredJ to employ the burner. This chamber consistspre integral castin and is provide with angu- 4 5 larly related in et'and outlet openin s af a2, l Fig. 1, for the passage of`air theret rough,

the openinga" being connected with this 'object in view to any suitable source of air/ supply by means of a pi e A. Alined with the outletopening` 1f/2 o chamber A `is another small opening a3 for the insertion of the atomizer C, presently to be described, while loosely fitted in the voutlet opening a? itself is a mixer B, that, like'chamberA, is preferably composed of a single integral and provided wit A-ofsomewhat smaller diameter. supply pipe has a suitable external connec-V erabl of a single l eneral tubular. in a cup-s aped nozzle b a spider b having a central aperture b2." 'Mixer B is retained in place 1n opening a2 of chamber A by means 6e of a short section of pipe or tubing c fitted in this `aperture b2,the rear portion'ot1 which casting'. .Such mixeris of form, terminatm -is similarly secured in the openingas, such pipe c, constituting the outer shell` of lthe 'atomizer C"by meansl of which the liquid 65' fuel designed tofbe emp is introduced in the mixer in proper `form for its rea y and complete combustion. Such outer pipe or tube o of the atomizer is connected with any suitable source, not 7o shown, of air or steam, whereby such airior steam may be introduced under pressure into the atomizer, through a suppl pipe s. drip cock c2 oppositely dispose to such inlet pipe, permits of the withdrawal ofl any water such as mightaeeumulate when steam is used owin to 'the condensation thereof'. Mounted Wit in air supply pipe c Vof the atomizer and terminating short' of the dis charge' end thereof is an' oil suppl 'pipe c 8'0 ue oil loyed in the burner tiony C* as-shown,"and is held in proper place by having an'enlarged portion C5 threaded within'the rear end of said air sup ly pipe. 8.5' Inserted within theI forward end otpoil supply -pipe c is ar plug c having a central aperture c1 that forms a discharge jet for the oil. The inner end of such opening is enlargedtoform 'a conical 'valve seat e for 90 a needle valve 00,'that is'threuded in the rear end of saidY oil supply' pipe und extends axially the entire` length ot the pipe. The forward portion of the air ipe that projects beyond the termination oij said oil supply- 95. pipe isradually drawn together or re duced in iameter, so as to form in front of the aperture o7 in the plug C a chamber c having inwardly curved walls and an opening 019' alined with such aperture c7. 4' 10o [The operation of the burner, thus structurally described .in one lapproved form, should be readily apparent. By proper adjustment of needle valve c", shown as beine' 'closed in Fig. 1, the admission of the oil 1012 into atomizer C, or rather its discharge therefrom, is p easily and `delicately controlled. From the forward end of the oil supply pipe'this oil escapes in the form of a fine streamthiough aperture c7 in plug c?. 110

The stream of air admitted into casing c, of the atomizer through supply pipe is obviously ofrannular ,cross-section until it reaches such discharge end of the oil supply l pipe. Here the converging Walls of such casing force such stream' inwardly so as to mingle the saine thoroughly Wi th the stream of oil from aperture 0" as both streams make a common escape from chamber c through the opening el provided for this purpose.l

The oil is thus divided into minute particles l :and eifectually atomized, so that a body of l more or less gaseous character is produced. In the nozzle b of the mixer this body meets the air admitted through inlet opening a of chamber A from main air supply pipe A and is niingledtherewith. The rate of sup- I ply of such air is of course regulated to proi vide a proper eombustive mixture when the mixture is thus e'ected. The construction of the burner, aside from its simplicity, I f have found to give an exceedingly hot flame suitable for use as a blast in the various op erations involving the heat-ing of metal parts both in exposed situations and in reheating furnaces, as also for the heating of crucibles and the like.

lt has been indicated that this burner is not necessarily limited to the use of any particular kind of liquid fuel; in fact the plug u, through the aperture in which such liquid escapes, is purposely made removable and heme exchangeable with other plugs i having apertures of ditlerent sizes. Accordingly Wherever the word o il is used herein or in the foil wing claims such term will be understood te include under the rule of equivalents, any suitable liquid fuel. The same statement is to be made in regard to the Word air employed to designate the gaseous body used to vaporize the oil in the i atoniizer, as also the one employed to elfect the final combustive mixture. In the first i connection, particularly, other fluids such as steam, may be frequently substituted to adl vantage. i

Other modes of applying the principle of my invention may be employed. instead of the one explained, change being made as regards the mechanism herein disclosed, provided tlie means stated'by any one .of the ifollowing claims or the equivalent of such stated means be employed.

l therefore particularly point out and diS- 5'5 tinctly claim as my invention f 1. ln a burner of the character described, the combination of a main air supply pipe; a chamber directly connected with said air supply pipe; a. mixer of general tubularl 60 form loosel fitting in said chamber, said v inixer terminating in a cup-shaped nozzle 'and `being provided with a spider having a vcentralaperture; and an atomizer extending axially Within said mixer, said atomi'zei' l l i i. posed within said l l comprising an inner oil supply pipe provided With a jet discharge, and an outer air supply pipe surrounding said oil supply pipe, the respective ends of said air supply pipe being fitted in the rear wall of said chamber and in the central aperture of said mixer spider, therebyretaining said parts in place. I

2. In a burner of the character described, the combination of a'main air supply pipe; a chamber directly connected with said air supply pipe; a mixer of general tubular forni loosely fitting in said chamber, said mixer terminating in a cup-shaped nozzle and being provided with a spider having a .central aperture; and an atomizer extending axially within said mixer, said atomizer comprising an inner oil supply pipe provided With a jet discharge, and an outer aii pipe and projecting beyond the discharge end of the same, the respective ends of said air supply pipe being litted in the rear Wall of said chamber and in the 'central aperture of said mixer spider, thereby retaining said parts in place, and such projecting portion of said air supply pipe being drawn together to forni a small chamber in front of such jet discharge and having an opening in line therewith.

In a burner'of the character described, the combination of a main air supply pipe; a chamber directly connected with said air lsupply pipe; forni loosely fitting in said chamber, said mixer terminating .in a cup-shaped nozzle and being provided With a spider having a central aperture, and an atomizer extending axially within said mixer, said atomizer comprising an outer air supply pipe fitted in the rear ivall of said chamber and in the central aperture of said mixer spider, thereby retaining saidparts in place, an oil supply pipe of smaller diameter mounted within said air supply pipe and terminating lshort of the discharge end of the saine so as to leave the latter project therebeyoiid, a plug, having a central opening forming a jet, inserted iii the discharge end of said oil supply pipe, and a needle valve'axially disoil supply pipe and adapted to control the aperture in said plug, the portion of said air supply pipe that projects beyond said oil supply pipe being drawn together to form in front of the aperture in said `lug a .chamber having inwardl curved walls and an opening in line iviti suoli aperture. 1 fgned by me this 21st day of September,

9 I JACOB WEINTZ.

MARY ISRAEL, VJN0. F. OBERLIN.

supply pipe surrounding said oil supplyI .a mixer of general tubulaif

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