US1801426A - Furnace burner - Google Patents

Description

April 21, 1931- F. x. HAMBERGER FURNAGE BURNER Filed June 20, 1929 Cil Patented Apr. 21, 1931 FRANK X. HAMBRE-GER, OF BUFFALO, NEW' YORK.

FUR-NACE BURNER Application filed .Tune 20,

This invention relates to improvements in gas burners which have been particularly de signed for use in furnaces, boilers and like heating appliances.

VOneof its objects is the provision of an elhcient burner of this character which has been designed to produce a maximum amount of heat with a minimum of fuel consumption, and whose burner elements arek so constructed as to produce a combustible mixture for obtaining a very high degree of it.

Another object of the invention is to provide the burner elements with combined means for introducing secondary air at the base of the flame-j ets and for deflecting such jets against the furnace-walls.

1n the accompanying drawings Figure 1 is a top plan view of my improved burner showing the same installed in a furnace. Figure 2 is an enlarged sectional elevation of one of the burner elements. Figure 3 is an enlarged fragmentary cross section taken on line 3 3, Figure 2.

Similar characters of reference indicate corresponding parts throughout the several views.

By way of example, my improved burner has been shown in connection with a furnace 10 having a heating chamber 11 containing an opening 12 normally closed by a door 13. To facilitate the installation of the burner through the opening of the furnace-chamber, it is composed of two sections each including a pipe or manifold 14: arranged to extend along one side wall of said chamber and partially along the rear wall thereof in the man ner shown in Figure 1. Rising from this pipe at suitable intervals are nipples 15 to which the upright burner-elements or jets 16 are joined. The pipes 14 are connected to the service gas supply line and are provided with controlling-cocks 17.

Each burner element preferably consists of al conical body 18 having a correspondingly shaped mixing chamber 19 whose larger or lower end constitutes an inlet for receiving the gas and air and whose smaller or upper end serves as the outlet or discharge fo-r the combustible mixture. ,Fitted in the inlet end of the mixing chamber and extending dia- 23 through which the gasis admittedy to the fair to produce a highly combnstiblemixture.

1929.. Serial No. 372,365.

metrically across the same is a bridge piece :2O which provides openings on either side thereof for the passage of primary air into said chamber, such air supply being'received below the grates of the furnace and it being 5 desirable to have both the lower draft and the chimney draft partiallyopen at all times to obtain the best results. This bridge bar may be detachably securedto the conical body 18 by screws 21 or' other suitable fastenings and it has a..v threaded opening 22 therein for fastening the body to the nipple 15, said opening terminating at its upper end in an orilice mixing chamber 19. G

Applied tothe discharge end of each burner element is a combined flame deflector and supplementary mixing chamber for introducing asecondary air supply into the flame issuing from the burner. This device consists of a 7 substantially tubular body 24. disposed crosswise of the burner element at aslight angle to its vertical axis, as seen in Figure 2, andA at its underside is provided with a collar 25 for detaclia-bly connecting it to the tipA of the burner element. It will be noted from Figure 1 that the secondary air supplytubes 24 are disposed` at substantially right angles to the furnace-walls with their `inlet ends Qffor the admission of secondary air facing downwardly and inwardly toward the center of the furnace-chamber and` their outlet ends facing slightly upward and termina-ting in flamedeflectors 27 which project outwardly from the top andadj oining side walls of said tubes. Q The secondary air tubes 24 are approxii mately elliptical in cross section, as shown in Figure 3, and as the mixture of gas and pri.- mary air is admitted into these tubes from the burner-bodieslS, those elements follow they curvature ofthe inner wallsof the tubes, taking an upward and inward` course and effectively commingling Vwith lthe secondary The deflectors-QT at the discharge ends of the secondaryair tubesy serve to directthe flames outwardly and laterally against the furnacewalls.

I claim as my invention l' A gas bumeof'the Character described.; in"

comprising a burner-body containing a mixing chamber having an inlet for the gas and primary air at its lower end and an outlet at I its upper end and a tubular member applied transversely of the outlet end of the burnerbody and inclined relatively to the axis thereof, the lower end of said member forming an inlet for the admission of secondary air over the outlet end of said burner-body and its m upper end terminating in a flame-deflector,

the bore of said tubular member flaring outwardly from its lower inlet end to its deflector-terminating upper end.

2. A gas burner of the character described, l5 comprisingl a lnirner-body containing a. mixing chamber haring an inlet tor the gas and primary air and an outlet, and a tubular member disposed transversely over tbe outlet end of said Inn-mfr-body and inclined upwardly, the bore of said member com'erging vtrom its I upper to its lower end. the lower end of said j member at one side of the burner-body constituting an inlet for secondary air and the flared upperend of said member on the opposite side of said burner-body constituting a deflector for directing the llame laterally from the tubular member.

3. A gas burner for furnaces and the like, comprising a manifold pipe adapted for disposition in the furnace and connected with a source of gas pressure, nipples connected to said manifold, upright luirner-bodies applied to said nipples and containing conical-shaped mixing chambers each having an inlet for the gas and primary air at its flared end and a mixture outlet at its contracted end, and a tubular .member mounted on the outlet end of each lmrner-body transversely thereof and inclined relatively to the. axis oit' its mixing,r 40 chamber, the bore of said member converging from its upper to its lower end, the lower converging end of said tubular member at one side ofthe mixture outlet forming an inlet for secondary air and the upper flared end thereof at the other side. of said mixture outlet terminating in a flamc-defleetor.

4. A gas burner of the character described, comprising ay substantially truste-conical burner-body containing a correspondingly shaped mixing chamber of uniform taper from end to end thereof and havingr an air inlet at its flared end and a mixture outlet at its converging end, a bridge bar arranged transversely of the burner-body at the flared end thereof and containing an opening for connecting said body to a gas supply nipple, and a tubular member applied to the tapered end of said burner-body transversely thereof` and inclined relatively to the axis thereof',

one end of said tubular member forming an inlet for secondary air over the outlet end of the burner-body and its other end terminating beyond said outlet end in an upwardly inclined flame deflector.

FRANK X, HMBERGER.

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