US1746180A - Liquid-fuel burner - Google Patents

Description

Feb. 4, 1930.

J. w. H. AINSCOW I LIQUID FUEL BURNER Filed Oct. 5. 192a Jo k WEAWC W,

Inmzbr Paytentvd M 15 f 1,746,180

a I P T" QFFICE 1 TJ'O'SEPH WILLIAM HO ACE AINSGOW, or LrNnFInnn, NEAR srnivnmjnnw scorn"- i WALES, AUSTRALIA I LIQUID-FUELBURNER i 'App1ication fi1edteam- 5, 192e, sier 1-No, *'1'3e,e5s, and in Australia Novemberfi, 1925.

y This invention'relates to burners used for nozzle 22 whichhas its rear end countersunk atomizing and projecting liquid fuel" into as at 23 and threadedly connected in the forfurnaces and the like andhas been specially wardend of said' stem 14, projecting through devised in order to provide an improved. liqthe bored'wall 11 and the chamber 9 so that V uidfuel'burner of simple,eflicient'and durable 1 its'forward end 24 which is contracted. and 5v construction whereby thepartsare readily rehas its moutlrcountersunk as'at 25 will seat movable for cleaning without disconnecting in the valve seat 8 at the'rear end of the pasthe supply pipes and in which the regulation sage 7 a nozzle adjuster 26 which consistsof the relative volumes or quantities of liquid of a gland like externallythreaded sleeve 27 1Q fuel-and commingling air, steam or'gas, may and an operable wheel 28 and is revolvable 60 1 be. readily and independently effected, and upon said stem 14 with its sleeve in the socket which reduces the, consumption of fuel,is 12, a'hollow connection and closure 29 with Y practically noiseless-in operation and though its forward end internally threadedv and conprimarily intended forthe burning of cold nected upon'isaid stem 14 and'having a lateral vits. f-uel atilow pressure incomparativelysmall passage 30 adaptedfor connection to a fuel 5* volume thus rendering preheating ofthe liqsupply, and a rear bore'w'all 31,- and in, its uidfuel unnecessary,.may be used with equal rear end a partially threaded stuffing box 32 efficiency with'the fuel under pressure and" to receive packing and in which is' e'ngageda v when preheated, and'by which may be'used' glandi33; and a needle valve stem 34 which I 20 any liquid vfuel, s'uch gas crude oil, residual hasan'operable wheel 35 on its rear end and oil,'tar'a'nd tar oil with either air, steam or extends through the gland 33 the, connection gas, such as furnace or waste gases. 7 29 and the stem 14 and has a threaded portion In order that the invention and 'a practi- 36 inengagementwith the internally threaded cal application of thesame will-be readily contraction 2 0 of said stem 14, and 'a reduced p .25 understood the same will be described with forward portion 37 extending into thejholl'ow reference to the accompanying drawings in nozzle 22 and terminating in a coned'end 38. "which is shownalongitudinalsectional: Q16 7 The forward end of the casing 6 is exter vation of the burner with the valve closed, nally reduced to providea shoulder 39' and, andicarrying a, flame; concentrator and'aroutwardly thereof is'externally threaded for g V 30 ranged in a freeair furnace mouth cone, engagement -thereon of the so'cketed and'inso l The improved liquid fuel burner comprises; ternal threaded shank 41016 a bell mouth or; a main hollow case 5 which is open at both deflector 40,'preferably witlra copper wa'sher ends and has, the forward end 6 contracted "42 interposed, of requisite diametrical size to form an exit passage 7 having its rear end to freely move within a free air"cone,zor to valve seated as at 8, an enlarged cavityform' [pass through an apertured closure affixedin ss. i

V I ing an air or steam chamber 9 from which isql-foi across the furnace mouth. V a lateral passage 10. adapted for connection The burner ls secured to a spider 43 to a source of air, steam*or gas supply, a rearpas'sing'the reduced end through an aperture 7 'ward divisional boredwall ll, and therear 44 in sa1dsp1der and connectlng the deflector 40' end enlarged to forman internallythreaded '40 as' showni. Theispider '43 has transverse socket 12 whichhas an internal plainshouL bores 45finear'iits lradial extremities and is 1 der 13 at the forward or. inner end; in-said; slidably mounted upon a plurality of spaced socket 12 hollow stem'14whichhas at its forarms 46 (preferably three) secured iat their V ward end alfian'ge 15, its otherend16 exiinner ends 47 V to and projecting fronia free: i 4 ternally;threaded,f'andin its bore'fl'l' which is air cone 4'8 afiixe'd in thefurnace mouth'sueh 7 recessed and threaded" at its forward end as as by bolts through apert-ured lugs 49 allof at 18 and 19 an annular contraction 20 'inirvhich is l fully, described and claimed in my 7 ternally threaded andhaving through its-wall copending application filed November 10 i a plurality of longitudinallyand,circumfer- 1927, Ser al N 2 i, V g p ;50 entiallydisposed fuel; passages 21; a hollow j In use, the burner being connected atf30 to a fuel supply and toan air or steam supply at 10, fuel will flow through the connection 29 to the hollow stem 14 about the valve stem 34,thence through the passages 21 into the hollow nozzle 22. By revolving the valve stem 34 its forward valved end 38 may be advanced j into or retired from the contracted end of sa1d nozzle 22 and so regulate the discharge of fuel, and by revolving the adjuster 26, which is in threaded engagement in the socket 12 of the casing and free to revolve on the hollow stem 14 but is longitudinally held thereto between its flange 15 and the closure connector 29 upon'its rear end, said stem 14 may be advanced or retired longitudinally and as it carries the hollow nozzle 22 and also the valve stem 34 the nozzle may be advanced or retired in relation to the exit 7 and so regulate the discharge of air, steam or gas to commingle with the oil issuing from said nozzle, without disturbing adjustment of the valve end 38 in the nozzle 22.

As the nozzle and the valve stem within 7 the casing 5 are carried by the hollow stem 14 which has thereon the nozzle adjuster 26 which screws into the socket 12 of said casing 5, by unscrewing the adjuster from the socket 12 the whole of the parts may be removed for cleaning without having to break to the chamber 9 is used for atomizing, and

free air which is drawn in around the defiector 40 is used for combustion.

When a flame to fill alarge area is required a nozzle with a larger exit 7 and or a wider countersink 25 may be used without alteration to the other parts of the burner or a plurality of the burners may be used.

The fuel which is fed by gravity or low pressure to the nozzle 22 and has its disby retiring the deflector 40 in the cone 48. To obtain a long intense flame the air, steam or gas pressure is increased, and the deflector 40 advanced in the cone 48 as required.

What I claim is I I p A liquid fuel burner comprising a casing having an atomizing chamber therein and a contracted exit within its forward end communicating with the chamber, an internally threaded socket formed with the rear end of said casing, said casing having a lateral fluid supply passage communicating with the atomlzing chamber thereof, a hollow stem pro ecting in-said socket, an internal contrac- 'tion formed with said stem and having longihollow connector secured to one end of said vend of'said valve stem and a threaded con nection between said valve stem and said in ternal contraction 'of said hollow stem.

' JOSEPH WILLIAM HORACE AlNscow.

charge therefrom regulated, by the valved end 38 of the stem 34 is atomized as it spreads from the countersunk mouth ofthe nozzle into the exit 7 and the pressure of air', s"team or gas from the chamber 9 mingles with it, the atomized fuel discharges into and spreads in the deflector 40, and as it reaches the mouth thereof is carried forward by the indraught of free air through a free air cone 48 afiixed over the furnace mouth.

To obtain awide volume of flame the pressure of air, steam or gas entering the chamber 9 is reduced and the nozzle 22 is retired from the valve seat 80f the exit 7 so that just sufficient air, steam or gas will enter said exit to atomize the full discharging from said nozzle 22, combustion may be regulated

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