US1321816A

US1321816A - Fobbst

Info

Publication number: US1321816A
Authority: US
Publication date: 1919-11-18
Anticipated expiration: 1936-11-18

Description

1. FOERST.

` BURNER. APPLICATION FILED A Pn. la. 19:9.

3Q l y 1 @l Patented Nov. MEQ/1919.

WETNESSES: INVENTOR man renner, or *nM/orma, New mastit.

i iraniana. I

isere-ie.

:Elpecieation 'of Letters Patent.

' Application tiled April 16, 1919. Serial No. 290,574.

. To all w/wm t may concern:

All@

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Be it known that I, JOHN lonnsr, a citizen of the United States, residing at Bayonne, in the county of Hudson auf State of New Jersey, have invented certain new and useful Improvements in Burners, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in burners and more particularly in burners employed for combustion of oil or gas preferably in steam-boilers, although the iuveii tion is equally adapted for'use with various otherapparatuses of a similar character.

The invention has for its primary object to highly increase the efficiency of burners of this type and nevertheless construct the burner in the simplest manner possible, thereby reducing the cost of production and its liability to get out of order.

ln hydrocarbon burners. it is basic that the greatest eflciency is obtained by proper atomization of the fuel employed or, in other words, by dissociating the fuel particles to the extent producing a Harrie havin a substantially constant heating capacity t iroughout by a simultaneous combustion of all the fuel particles. l

lin the present invention this ideal condi tion is closely approximated'by obviating litful and wasteful combustion in the manner hereinafter set forth in greater detail and referred to in the appended claims.

In the accompanying drawings, Figure 1 is a side elevation of a burner embodying the present improvement. Fig. 2 is a top plan View of the saine. Fig'. 3 is a sectional view in elevation of the burner. `l.4`ig. 4 is a front end view of the same. Fig. 5 is a detail sectional View on the line `5-5 of Fig. 3 and Fig. 6 is a diagrammatic view illus trating the inclinations of the strearncontrolling surface.

Referring to the drawings, the burner is preferably constructed of a casting 1 liaving a fuel chamber EZ-and a chamber 3 for an atoinizing agent such as steam or compressed air.

The fuel and the atomizingr agent may be conducted to the chambers 2 and 3 by means of feed-pipes 4 and 5 suitably threaded into the casting 1.' Near the deliver end, the fuel is led through a narrowed ori cev 6 forming a continuation of and projecting substantially clined downwardly at right angles to the length of the chamber 2'. The orilice Gterminatesin a flame controlling surface 7, intersecting the rear vertical wall 8 of the orifice for .the chamber 3. The surface 7 is substantially horizontal from the wall 8 to the point a, and is slightly inclined downwardly from this point to its front free edge b. The surface 7 between the inner edge c of the orifice 6 and the front edge b vis also slightly infroiii a central line toi-` ward the side edges 10 and 11. These rela` tive inclinations of tliesurface 7 are clearly' illustrated in Figs. 4 and 6 of the drawings and form an important feature of the present invention as will beV later explained.

The chamber 3 between the two there is provided a segmen-` tal opening 17 thesize of siderable extent, controls the length ofthe ame. Adjacent the side edges 14 and 15 and slightly spaced therefrom the casting lis formed with upwardly projecting' lugs, as 18, for a purpose about to be described.'

Fuel conducted into the chamber 2 emerges through the orifice 6 substantially at right angles to the surface 7.

ing agent conducted into the chamber 3 Patented Nov. 18, 1919.

l Vterminates in an orice substantially circular in the vertical plane which, to a con-I y' An atomiztends to emerge in a fan-tail shaped stream along the surface 7, as indicated by dottedl lines in Fig. 2, the extent of the lateral .apre-.vd being to some extent controlled by the length 'of the lugs 18. These lugs 18 also permit a slight suction of air to aid combustion. This tendency to spread out in fan-shape 'is due to some extent to the shape of the overhanging wall 1Q as will be readily understood. When the atoinizing agent strikes the downwardly inclinedlsurface 7, its plane of spread is correspondingly in clined.. The atomizing agent now strikes the upwardly rushing Jfuel, dissooiating the particles of the latter and vcarrying them along with it. The fuel is now spread in fan-tail shape by the inclination ofthe surfface toward its side-walls. With burnersl of this type,'the flame produced is'often of al considerable length and owing to the draft present in the boiler, has a tendency to curl iupwardly along its edges thereby passing between the boiler tubes end wasting the heat By downwardly inclining the surface L7 toward its front and side edges, the flame receives an initial downward direction Sullicient to produce e, pnrabolieal shape which under the contrary action of the draft prevents the edges of the llame from shooting upwardly in tongues and causes the edges ,to double upon 'themselves whenever there.

is a tendency tecurl nt the edges.

'It will be observed that the edge c of the orifice 6 is in a. higher plane than its arallel edge, with the advantage that backrin is Vobviated bv the tendency to carry the el away from the orifice Having thus setforth the nature of the invention, what I claim herein is- 1. In aburneig the combination with a frame providedv with a fuel chamber and an v4zitomizing-agentchamber,` and means for jee conducting fuel and an etomizing agent into said respective chambers, of a streamcontrolling surface inclined downwardly toward its front edge and from a substantially media-n line toward its side edges, a fuel delivery orifice terminating in seid streamcontrolling surface, and a delivery orifice formed in said atomizing-a-gent chamber.

2. In e burner, the combination with a frame provided with a fuel-chamber and an atoiuizingegent chamber, of e stream-controlling surt'ace rovidedI in said frame, a narrowed fuelelivery orifice projecting substantially et right angles to and terminating in said stream-controlling surface,

the rearward edge of said orifice lying in o,

`higher plane than the advance edge thereof,

and an atomizing-agent delivery-orice overhanging said stream-controlling surface and formed with a substantially central seg- .niental opening.

3. In n burner, the combination with n frame provided with a'fuel-chamber and en atomizing-agcnt chamber, of a stream-controlling surface provided iii said frame, ,a fuel delivery orifice projecting,substantially at right angles to and terminating in said surface, and an atomizing a ent delivery orifice formed by a wall over angng said surface, said stream-controlling surface and said overhanging wall being inclined toward their front and side edges for a purpose substantially as set forth.

4. In a burner, the combination with a frame provided with n fuel chamber and an atomizing agent chamber, and means for conducting fuel and an atomizing agent into said respective chambers, of a streamcontrollng surface inclined toward its front edge and from a substantiall median line toward its side edges, a, fuelelivery orifice extending at a substantial angle with respect to said stream-controlling surface, and a de livery orice for the atomizing agent terminating rearwardly of said fuel-delivery orifice adapted to direct said atomizing agent upon said surface i'n a direction substantially transverse to the leed of the fuel from its delivery orifice.

In testimony whereof, I have signed my name to this'speeiication.

i JonN FoERsT.