US1874968A - Gas furnace - Google Patents

Description

N pag.1

Aug. 3o, 1932. E. HALL 1,874,968

GAS FURNAGE Filed April 22. 1929 Patented Aug.. 3G, 1932l l Lg,g i l l UNITEDfsTATEs ERNEST A. HALL-or Tonino, omo, AssIeNoa 'ro THE COLUMBIA BURNER.

-or rompo, omo, A coronArIoN orl omo PATENT ori-rca confirm,

GAS IUBNAGE Applicatio'n'led .April 22, 1929. Serial No. 358,975.

This invention relates toa `Jfurnace and more particularly to one which is adapted to vbe used in connection'with a'hot airheating system and in which gas is used as fuel.

The general object of the invention is to lprovide an improved arrangement, whereby y the greater part of the combustion takes place in direct contact with the wall of the irepct, so that the heat generated is conducted directly '-to the air heating chamber, re-

sulting in the highest possible efficiency and the utmost economy in the used. This involves not only an improved arrangement of a series of gas .jets with respect to the wall of the iire'pot but also improved means or directing the How of both the primary and secondary air supply.

A 'The fuel` is supplied through a burner ring or manifold and directed upwardly and outwardly against the 4series of; spuds having primary ai'rinlet openings.' The secondary supply ofv air is directed against the wall and combined with the primary mixture in a manner best suited to complete the combustion in contact with the wall. The direction and rate of lowof this secondary supply is controlled by means of a baie resting preferably upon the burner ring and sloping' upwardly toward the ,3 wall of the firepot, leaving a restricted'annular space through which the products of combustion are discharged. In combination with the baie, there may also be provided an adjustable top to adapt the same for the 5 proper control of the air current in repots of different sizes.

The preferred embodiment of the inven- "tion will be more Yparticularly described inv connection with the accompanying drawing, in which' Figure, 1 is a vertical sectional view of the invention together with a portion of the furnace in which itis used.

Figure 2 is a similar view of a portion of the invention on an enlarged scale, the section being taken on the line 2-2 of Figure 8. s Figure 3 is a plan view of the burner, with parts broken away,showing alsoan adjustable'top on the bale for restricting the upward ilow of gases from the burner.

amount of uel wall of the irepot by a` against' the wall of the repot. Each of Figure 4 is a vertical sectionthrough the upper part of thebame, with the adjustable top mounted thereon. v

Fi re 5 isa sectiontaken on the line 5-5 of Figure 3.v 'I5 As shown in the drawing, the invention is mountedwithin a firepot havin .an outwardly bulged wall 5 and surroun ed by an air heating chamber 6. The' gas is sup lied through a burner ring or manifoldl'i''W 'ch, in the present instance, is seated upon a circular plate 8 supported by a bar 9 or other suitable means. The ring .7 is preferay; made in a number of separate sections, e connected to a. gas supply pipe 10Q The ring 7 is provided with a\series of upwardly and outwardly directed tubular mem bers or spuds 11 mounted at e ual distances along its periphery for discharging gas jets these spuds is provided with suitable means, as for example, the openin 12, for initially mixing a small quantity o to effect a primary combustion at or about the time of its impingement against the wall of the firepot, the ends ofthe spuds being at a predetermined distance from the wall such l that the point of greatest heat coincides wlth the surface of the wall. A secondary suppl of air to complete the combustion is directe by means herenater described, against the wall of the firepot above the region of pr1- mary combustion. The ring 7 ymay' be formed with a series of peripheral lugs 13 to gage the position of the burner and tbg spuds with relation to the iirepot.

The secondary supply of air for completing thecombustion 4is supplied through the `annular space between the ring 7 and the wall of the firepot. For controlling the rate of flow and the direction of this secondary air supply, bafle sections 1 4 are mounted a 'ove the spuds 11, preferably resting upon the' upv per surface of the ring 7 in channels 15 ,formed between opposed anges 16 extending upwardly from the burner ring. Thesev bale sections slope upwardly and outwardly' from the burner ring and collectively present 'loiair with the gas l an inverted truste-conical SurfA The f1 l the space between the upper ends of the lbattle sections 14 and thel wall of the iirepot is considerably less 'than the area of the space .be-

' tween the burner ring 7 and the wall of the X contact with the wall of the e supp Y '20 used in a firepot of` larger diameter i not limited speciicall firepot. This checks the upward flow of the airand, in connection with the outwardly and upwardly sloping surface of the baille, causes the secondary mixture to effected and combustion to be completed in direct epot. The restricted outlet and the consequent retarded flow increases the contact of the hot es with'the wall and prevents the latter romv bein Iy of cold air. The same burner may be advanta eously y providing a top for the baiiie, as indicated y the numeral 17 in Figures 3, 4 and 5. This top extends completely around the upper edge of the baille and hasa number of downwardly rojectin flan s 18 formin channels 19 between t em either one of which is adapted to fit over the edge of the baille, to reduce the area ofthe' outlet. By providin a number of such channels 19 and blyl making the top in a number of'sections w 'ch over ap as at 20, the top may be adjusted to adapt it tirepots of different diameters. Each section of the top may be formed -with an outwardly projecting lug 21 which makes it impossible to adjust the to too closepto the wall.

It is to be un erstood that the invention is to the form herein shown and described ut includes all such modifications as fall within the scope of the appended claims. Y

What II claim is:

1. In a gas furnace, the combination of a l irepot, a burner mounted within the firepot and having upwardly and outwardly directed outlets, spaced upstanding anges on Athe urner forming a channel between -them, and a baille 'supported independently of the irepot wall by engagement between said flangesV and presenting an outwardly -and upwardly sloping/y surface toward the wall of the irepot, thereby forming anup wardly converging space above th'e gas outlets to restrict the iow of the burned gas.`

2. In a gasfurnace, the combination of a repot, a burner manifold disposed within the firepot and having spuds inclined upwardly and outwardly toward the .wall of the repot, a seat on which the manifold is supported,leaving a space between the manifold and the wall of the firepot for the air supply to the burner, a baille extending upwardly from the manifold and approaching the wall oftlie-frepot` above the spuds, and anges on the burner between whicn the basel of the unnecessarily cooled by an excessiveY l 1,e74,eee l baille is held so that the batlie is supported independently of the irepot wall.

3. In a as furnace, the combination of a firepot, a urner manifold disposed within the iirepot and having upwardly and outwardly directed gas mixing tubes, a seat on vWhich the manifold is supported, leaving a s ace between the manifold and the wall of t e firepot to suppl air to the mixing tubes,

toward the wall of the iirepot, the edge of said manifold beinv spaced from the wall of the firepot to provide for a supply of air to the s 'puds for the rima mixture, and to positively set the outlet ends of the spuds at. such a distance-.\from the'wall of the irepot that the point ofrliighest dame temperature will coincide with the point of its impingement on the surface of said wall, the space.

between the wall and the manifold also prolviding for a current of air to complete the combustion as the flame iows'along the wall.

5. In a as furnace, the combination of a firepot, a urner manifold mounted within the repot and having upwardly and outwardly directed gas outlets,a seat on which the manifold -is supported, leaving a space between the manifold and the wall of the I on the, burner between which the baille .sec-

tions are supported independently of the.

wall of the fire ot.

6. In a gas mace, the combination of a firepot, means for directin as jets outwardly and upwardly towel/ te wall of the iiiepot, means including an inclined baille located above the ljets for .directing a supply of air upwardly-and outwardly'against the flame to complete the combustion, and radi-l ally adjustab e means at the top of the baille for restricting the discharge of the burned v gas, Y e Y 7. In a ias furnace, the combination of a frepot, a urner manifold within the re.

ot, a baille lextending upwardly from the urner manifold and coopielrating with the wall of the iirepot to de e a. combustion chamber, said burner manifold having outV4 iso Alets into said combustion chamber, said chamber having an air supply inlet and an outlet for the urned gas, said outlet bein normally of smaller area than the inlet, an

3 radiall' `adjustable means at the top of the bale or partially closing said outlet to adapt it to firepots of la diameter.

' 8. In a as furnace, t e combination of a firepot, a urner within the iirepot, a baille supported by and extendngupwardly from i the burner', and radiall adjustable means supported at the top of `tbe baille for partiall cutting t e burner. 9. In a gas furnace2 the combination of a fire ot, a burner within the lrepo wit spuds arranged to direct aeprimary mixture of air and gas against the lower part of the wall of the firepot, spaced llanges projecting u wardly from the burner inside of said spu s, and a baille supported by the burner and b and `between sa1d flan with its upper en approaching the w of the irepot, whereby'to direct a secondary supply z5 of a'ir against said wall above the-region where the primarymixture impinges there-4 on. Y

10. In a gas' furnace, the combination of a fire t, a burner within the iirepot provided `l0 wit spuds arranged to directa primary mixture of air and against the lower part of the wall of t e ported on the burner with its upper end appreaching theA wall of the re ot2 whereby to direct a secondary suppl?!r o alr inst v said wall above the region w ere the 'primary mixture impinges thereon, Yand a vmember supported by the upperend of the bale and adjustable to restrict the upward 'ow of gases from vthe burner. 11. Ina gas furnace, iirepot, a burner within the lipot provided with spuds inclined upwardly toward the mary mixture of air and gas therea 0E the llow of burning from t provided' lirepot, a bae lsup-- the combination of a part of the iirepot, through which airis supf plied for both the primary and secondary mixture.

A13. In a gas furnace the combination of a firepot, a burner manifold disposed within and in s aced relation tothe lirepot wall and having wall and arranged to discharge gas with 4a of sections extending upwardly from the ing the wall of the irepot above the re 'on of combustion to deflect toward said wal the current of air passing between the gas out-1 urner outlets directed toward said Amanifold inside the gas outlets and approacha firepot, a urner structure within the flre- 'pot and providedV with means for dischargin gas with a primary admixture of air towar the wall ofthe lirepot, there being sucient space to supply an upward current of air between the burner structure and the firepot wall, inside of the lame, and a baille su rted above the burner structure and in ependently of the firepot wall at such an inclination as to deilectsaid' current of air against the gas llame above the region where` t e latter impinges a inst the irepot wall, wherebv said deiecte current constitutes a secondary-supply of air to complete the combustion.

-In testimony ,whereof I have hereunto` signed my name to thisspeciicatiom lower part of the repot wall to -direct'aprigunst" and a baille supported on the burner with its A l upper end approaching the wall of the lirepot at a less inclination than the spuds and above the same, whereby 'to direct a secondthe region where the primary Ymixture impinges thereon.

12. In a gas a circular lirepo a burner manifold within the repot provi ed with spuds inclined upary supply of against vsaid wall above furnace, the combination ofr wardly toward the lowerhalf of the repot wall to direct a primary mixture of air and l gas thereagainst, and a bams supported on said manifold inside the spuds with its upper portion approaching the wall' of the lirepot at-a less inclinati@ than the spuds and above the same, whereby to direct a secondary supply of air against said .wall above the s region where the rimary mixture impinges u thereon, there belrhg a clear annular open Y ERNEST A.

75 primar admixture of air, a bale composed

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