US1563246A

US1563246A - Liquid-fuel burner or atomizer

Info

Publication number: US1563246A
Application number: US715970A
Authority: US
Inventors: Zulver Cornelis
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-05-26
Filing date: 1924-05-26
Publication date: 1925-11-24
Anticipated expiration: 1942-11-24

Description

EZULVEIR LIQUID FUEL BURNER OR ATOMIZER Filed May 26. 1924 4 Sheets-Sheet 1 Nov. 24, 1925- C. ZULVER LIQUID FUEL BURNER OR ATOMIZER Filed May 25. 1924 4 Sheets-Sheet 5 [rwemr Nimm 24, @@25- G. ZLJlms/ER LIQUID FUEL BURNER OR ATOMIZER Filed May 26, 1924 CORNELIS ZUL'Y'EB., OF LONDON, ENGLAND.

LIQUID-FUEL '.BIIRNER OR ATOMIZER.

Application med lay 26, 1924. Serial No. 715,970.

. To all whom 'it concern.'

Be it known that I, CORNELIS ZULvnR, a

subject of the Queen of the Netherlands, of

St; Helens Court, Great St. Helens, in the city of London, England, have linvented a new and useful Improvement in or Relatino' to Liquid-Fuel Burners.` or Atomizers, o

which-the following is a specication.

This invention relates tooil burners or 'atomizers and has for its object to an improved construction thereof w ich .is

particularly adapted for operation by lowv fessure air although the ap lication of the invention is not tobe consi ered as limitedin this respect, as steam, air, or other inotive Huid may be employed at any desired pressure. referred to.

The improved oil burner or atom'izer is characterized in that the air has a high roi tative velocity imparted toit in an air supply cliamber by means of vanes and is discharged through a contracted or converging conical opening around an oil supplyl tube provided ad'acent to said openin with an annular oil ischarge aperture an a diver I ing deflecting cone which may be surroun `ber which is of relatively lar consists of a rear section o hemispherical ed by a cylindrical member or by a ilared burner mouth. 4

As an example the oil supply tube may pass centrally through an air supply chamdiameter and form and a forward section of tapered or conical form fitted internally with helical i varies and converging from the largr diameter of the chamber to the outlet w ich is located around the oil tube 'ust'.before the oil discharge aperture is reac ed.

The conical deflector is suitably mounted at the end of the oil supply tube, for example it may be mounted upon the end of a spindle which passes throu h the rear end 4of the oil supply tube where t e said spindle is provided with a handle and screw threaded gland for the purposes of adjustment in the usual manner.

In a modied construction the conical de-' flector ma be located within or in advance of an enc osing cylindrical member.

Three constructions of oilburners orato-y mizers carried out in accordance with this 1n-v drawings, wherein,

vention are illustrated inthe accompanying rovide For convenience only air will be oil supply Fig. 2 is an end elevation of Fig. 1 from the left. Fig. 3 is across section on line X--X of Fig. 1 looking from the left.

, y 1563,24@ PATENT'oFFicE.

V(it) Figs. 4-and 5 are respectively a longitudi-l nal section andrear end view `of a modified construction.

Fig. 6 is a sectional elevation showing a further modification.

In the construction illustrated in Figs. 1 to 3, an oil supply tube a asses centrally through an airchamber b oi) comparatively large diameter, the rear portion or section b of said chamber being of hemispherical form, whilst the forward portion or section b2 is fitted with internal helical varies b3, and is of coned or tapered formation leading from the larger diameter of the chamber to a somewhat constricted outlet c; located around the oil su ply tube o: just before reachin the animar oil discharge opening d, whic is formed between the coned end of theoil supply tube a and the face of a divergiiig de ecting cone e carried upon the end of a spindle f which passes centrally through the oil su ply'tube a and out of the rear end thereof t rough agland g.

-. The contracted discharge aperture c of the air chamber b o surrounding the deflecting cone e and hav ing a contracted discharge opening lc which opens into a flared or diverging conical -burner mouthor flame tube Z.

outer end of the spindle lfor the purpose of operatin thesame, and to .ensure centrali. zationo the cone e projections or supportVv 1 ing members, such asc', Amay be arranged upon the spindle 'f. .Y

The oil tube ai may be conveniently screwed at its rear end into a body portion ai. which is made with a suitable extension a2 adapted to engageandt into a recess in the stirrup burner holder j into which the inlet j opens.

The said stirrupl holder j is provided with a screw j. for detaohably clamping the oil supply tube a in place.

'The outer casing of the apparatus which constitutes the air chamber'` the mixing ns into an enlarged and somewhat spherical mixing chamber A suitable hand wheel t is provided on vthe chamber Je, andburner mouth or flame tube l to 3 except that the air inlet m is le lows z-Air Z may be conveniently constructed as shown in three sections, the irst section b Which is formed with the air inlet m being pro vided with aisocket 'ni for the oil tube, whilst the second section is suitably connected to the third section or flame tube Z, convenient lianges `being provided for mounting the said parte u on a plate o formingpart of the furnace tment. y i

The improved burner operates as fol s admitted through the pipe m to the casingfb surroundin the burner tube a which air `may be supp ied :from a fan, compresser or other such suitable source.

Oil is led to the passage j of the stirrup holder y' from whence it passes into the o1l tube a and along the same towards the annular oil discharge aperture al, the dimen-- sionsof which may be regulated by means of the handwheel h and, spindle f to allow the requiredamount of oil to How out.

The air having to pass through the helical blades be in the air chamber b ac uires a high rotativemotion and the said c amber being coned `towards the outlet end c an increased rate of flow occurs at the point Where the oil and air meet; this results in the oil being rapidly spun around the conical delector e at the end of the spindle f and finally atomized and interinixed with the air current Within the mixing chamber 7c.

This mixing chamber 7c as will be seen, is of restricted formation, which ensures a further intimate' mixing of the oil and sprays beforebeing finally emitted from the conical burner mouth or flame tube Z where it may be ignited by means of a common torch.k

In' the modified construction shown in Figures 4 and 5 the operation and construction is similar to that shown in Fi s.. 1

1nto the side ofthe air chamber above the level of the lower edge of the outlet c so l that the lower part of the air chamber forms a pocket or well below the dotted line l :ze adjusted to lreceive and hold any oil which may by any mischance pass into the air chamber Vb instead of going into the furnace, and the oil thus received in the said pocket will be held therein instead of flowing down the air inlet branch into the fan as might be the case when the air sup- .ply enters the bottom of the air chamber.

These Figures 3 and 4 also show the air inlet branch fitted with a thermometer 71 d for ascertaining the temperature of the air being admitted and a suitable damper g, such as indicated in dotted lines fin ;Fig. 5 may also beprovided for controlling lthe air supply. v' ilsja llame tube provided with perforations r. v

.In the construction shown in Fig. 6, the mixing chamber 1s dispensed with and the flange t serving air sup ly chamber b fitted with internal f helical lades b3 `and coned or tapered at its `forward end to form a somewhat restricted outlet c located around the oil sup-` ply tube a just before reaching the annular oil discharge opening d `which is formed between the internally coned end of the oil supply toben and the face of a diverging deiiecting cone e carried upon the end of a spindle f which `passes centrally through the oil supply tube a and out of the rear end thereof through `a gland Where `it is providedwvith an adjusting handle k.

The contracted conical discharge a ervture o ofthe air chamberfis enclose by a cylindrical member e which isv provided with an internally bevelled ed e and ter- .minates just beyond said air disc arge aperture c, as shown, or approximatelycoincident therewith, and the said cylindrical member s may be carried back around the` air chamberb as Shown so asvto carry the same, the rear end of said cylindrical `member being v conveniently provided .with a as a means Afor attaching the burner as la Whole to the furnace door or supporting plate o.

The oil supply aperture d is located approximately coincident with the end of the cylindrical member 8 and the deflecting cone e projects slightly beyond the same.

In operation the air in passing through the helicalq blades in the air .chamber b acquires a high rotative motion and the said chamber being coned or tapered `towards the outlet end an increased rate of flow. occurs at the outlet c where the oil and air meet, this results in the oil being rapidly s un around the conical defiector e at the end) of the spindle f and .discharged as aiinely atomized spra intimately mixed with air so as to be rea ily ignited by means of a common torch.

The spindle f is fitted with a hand-wheel it and is screwed into the land g so that by i and desire required amount of from, an air supply nozzle mounted about said oil tube and adapted to direct the u movement of air against the outer end of said oil supply tube and against said deiiec tor whereby to atomize the oil and project the same outwardly from said deflector, a mixing chamber secured to said air nozzle, and a flame tube extending outwardly from said mixing chamber.

2. The improved oil burner comprising an oil supply tube having an annular oil discharge opening at the outer end thereof, a cone-shaped delector positioned in spaced relation to said annular oil discharge o ening, an air pressure chamber mounted a out said oil tube, vanes mounted upon the inner Walls of said air pressure chamber and adapted to rotate the air about said oil tube and toward the outer end thereof, an outerl mixing chamber and aflame tube extending outwardly from said mixing chamber.

'llie improved oil burner or atomizer comprising an oil supply tube having an annular oil discharge opening at the outer ,end thereof, a diverging cone-shaped deflector positioned in spaced relation t0 said annular oil discharge opening, a converging air supply chamber mounted about said oil supply tube, a plurality of vanes mounted upon the 3U inner converging wallsof said air supply chamber whereby to impart a high rotative velocity to the air passing through said chamber, said converging Walls being adaptn ed to direct the air against the outer end ot' said'oil tube and against said delector whereby to atomize the oil, an outer mining chamber, and a dame tubeextending out* wardly from said mixing chamber..

4. The improved oil burner or atomizer comprising the combination of an oil supn ply pipe, a convergent air chamber surrounding said pipe, helical vanes mounted upon the inner walls of said air chamber and adapted to rotate the air Within said air chamber as it `moves toward the conl vergent end thereof, said supply pipe at its outer end extending outwardly from the conn 'vergent end of said air chamber, a mining chamber secured to the convergent end of said air chamber and extending outwardly therefrom, said mixing chamber being substantially larger than said convergent end of said air chamber, and a divergent deiect ing cone mounted Within said mining chain ber and partially extending into the outer end of said pipe, said deflecting cone being adapted to deiiect the oil and air into said mining chamber whereby to atomize the oil,