US1788495A - Oil burner - Google Patents

Description

w. H. SHEPPARD Jan. 13, 1931.

GIL BURNER Filed Sept.

//v VEN T0)? WES/zapped M W A TTORNEY Patented .Ian. 13, 1931- OIL BURNER. i

Application filed September The main object of this invention is to provide an oid burner which is applicableto furnace installations or similar other devices for the purpose of generating heat.

Another object of this invention is to provide an oil burner which uses a stream of air under pressure. This air is guided through a bafile plate which sets it whirling, and this 7 whirling air is then mixed with atomized fueloil, also. projected into the burner under pressure.

The above and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.

Referring briefly to the drawing, Figure 1 is a longitudinal sectional elevational view through the burner. V

Figure 2 is a top plan view of the same. 2Q Figure 8 a sectional elcvational view of the upperend' of the oil spreader nozzle.

Figure 4 is a front elevational view of the upper end of the oil spreader cone.

Figure 5 is a bottom plan view of Figure 4. Referring in detail to the drawing, the numeral 10 indicates the body of the oil burner. This body has encircling it, at its upper end, a housing 11 in which a circular channel 12 is formed.

shown. The body. is fashioned similar to bowl and is provided with apertures 13 around its wall, through which the air under natural draft pressure enters into an enclosed chamber 14 in the oil burner. The body is preferably mounted on posts 15 which have threaded openings 16 therein for the purpose of securing the entire device on a base. The chamber 14 is enclosed at the top by an inverted bell 17 whose edge is socured to the wall of the body 10. This inverted bell is provided with an internal substantially conical rim 18 whichencloses a similarly shaped passageway 19. An inv erted outwardly flaring cone 2O surmounts the rim and is open at its upper end. The base or lower end of this cone has a spider wheel 21 located thereon. This spider is provided with laterally inclined blades 22 which radiate from the axisof the spider and This channel 12 conu-v 30 municates with a source of supply of air, not

1,j19a.;;saa1jfm.30 ,459. I are interspersed by air, spaces 23. The sp1der'21 has an axial opening therein 7 through: which passes a nozzle body 24; The

nozzle body has a tapering nozzle cone 25 at its upper end. The face of the nozzle body has seated thereon a valve-like :spreader disc 2'Ziheldcin place'by stem 41. The body 24 'has'threads28 at its lower end which en-Q gage inthe threaded opening of a hub 29" which forms part'of the floor 30of the body. Member 29 has a pipe 31 connected to the. lowei'-e11cl.2--1l 1e pipe projects externally of. the body 10.and:has unitary therewith an inlot 32. The. passageway 33 in the inlet 're-p ceives the oil from the source ofsuppl-y and communicates with a pair of longitudinal channlsj'34 and Said channels pass through the pipe 31, through the hub 29, and

then through the nozzle body 24.

The surface 38 upon which the spreader disc seats upon the nozzle body 24 is provided with a groove 39. Said surface 38is provided with a plurality ofcanals 40 which extend tangentially from the circular groove 39 in the spreader disc to the edge thereof. Alongside the nozzle cone 25a housing 41 is located. This housing has parallel passageways 42 and 48 formed. therein which communicate with the surface or the nozzle member 25 as openings 45. A second passageway connects these two parallel passageways 42 and 48 and this connecting passageway is in communication with a pipe line 44 which leads from a source ofsupply of air under pressure.

atomize oil passing through the burner under pressure with air. The atomized oil is ignited in the confines of member 20 and serves as a heat generating unit. Air, preferably heated, passes into the chamber 14 of the oil burner through the apertures 13. This air, introduced through these apertures, finds an outlet through the spaces 23, located between the blades 22. In passing through these-spaces it is baflled laterally by the blades 22and, after passing around the blades, begins to whirl. This whirling, heated air envelopes the burner nozzle member 25." The oil under pressure enters through thepassageway 33 The burner illustrated herein is adapted to I of the inlet 32 and then passes, still under pressure, out of the channels 34 and 35 into the circular groove 39 formed in the spreader disc. The oil enters this circular groove at two diametrically opposite positions and, between the open ends of the passageways 34 and 35,. the air. openings 45. arelocated. Si.- multaneously witlrthe entering of the oil into the circular groove two jets of air also 10 'enterthe groove 39 from the pipe line 44 underforced pressure; The and; oili in. this groove are mixed and aspressure'continues are emitted through the space which is shown between the spreader disc2'Z and nozzle 10 25 and are thrust upwardly in atomi'zed'cohdition.

It is. to he noted. that certain; changes: in form and. construction may be made. wrthout departing from the spirit and scope oi? the invention.

Iclaim:

In an oil burner, a. sprayer nozzlev comprising a. body having air and oil passages there;- inyan inverted conical upper-end on said body; the; conical end having a flatseattherei'n, a

spreader discseated on saidsflat seat an annular groove therein, the. air and oilpassages. opening into said groove, andtangential canals extending fromsaid groove to 'th'e edge ofsaid disc. 1

In. testimony whereofI afliix my signature;

WALTER HARRY SHEPPARD.

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