US2567013A - Multiple gas burner for furnaces - Google Patents

Description

Sept- 4, 1951 c. E. FEINBERG 2,567,013

MULTIPLE GAS BURNER FOR FURNACES Filed March 28, 1946 0744.64 5 Air/Nase@ 27150K 3f QL/7M Patented Sept. 4, 1951 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to a gas burner, and more particularly to a burner construction adapted for house or building heating.

Heretofore in construction of this type, there has been the problem of most efficiently utilizing the combustible mixture of gas and air.

It is therefore the object of the present invention to provide a novel gas burner construction designed to effect the greatest utilization of the heat of combustion. y

It is the further object of this invention to provide a novel gas burner tip having a plurality of longitudinally arranged slotted flame sources whereby the flames produced have an upward wall sweeping or washing effect to produce the maximum transfer of heat to the furnace wall.

It is the still further object of this invention to provide a hollow gas manifold upon which are positioned a plurality of radially arranged burner tips, each of which has a plurality of spaced longitudinally slotted arcuate flame sources, whereby a plurality of substantially continuous concentric rings of flame are produced to upwardly impinge and sweep over the furnace walls.

These and other objects will be seen from the following specification and claim in conjunction with the appended drawing in which:

Figure 1 is a prospective View of the complete burner.

Figure 2 is an elevational section of the burner positioned within a furnace which is fragmentarily shown; and

Figure 3 is an enlarged elevational section of a single burner tip and its mounting upon the gas manifold.

It will be understood that the above drawing illustratesmerely one preferable embodiment of the invention, and that other embodiments are contemplated Within the scope of the claim hereafter set out.

Referring to the drawing, a hollow furnace shell II is fragmentarily shown, within which is positioned the hollow cylindrical base I2 in central spaced relation.

The annular furnace flre walls I3 and I4 mounted on base I2 have a vertical axis and form a fire chamber providing means of transferring the heat of combustion to the air, for instance, which passes through the space I5 for subsequent direction to various parts of the building to be heated in the conventional manner.

The gas burner (Figure 1) is centrally positioned within fire walls I3 and I4, with its gas manifold I6 adjustably mounted upon the three legs I1. The latter slidably extend through openings in flanges I8 through which are threaded transverse locking studs I9. Thus manifold I6 may be adjustably arranged at the proper level for the particular fire chamber employed.

Hollow circular gas manifold I6 of substantially rectangular cross section has a plurality of radially spaced threaded openings within which are positioned threaded nipples 20, preferably made of brass. A hexagonally shaped nut portion 2| is provided to facilitate the positioning of said nipples securely within manifold I6. It will be understood that manifold I6 may be of some other shape such as rectangular, if desired.

The lower open ends 22 of hollow burner tip housings 23 are slidably positioned over the upright portions 23 of said nipples. The enlarged gas intake opening 24 of nipple 20 terminates in the constricted discharge opening 25 for conducting gas at increased velocity into mixing chamber 26.

As illustrated in Figure 3, air intake openings 21 are provided in burner tip 23 so that the stream of gas into chamber 26 draws with it a supply o1 atmospheric air to produce a highly combustible mixture within chamber 26.

Burner tip 23 has a plurality of stepped hollow transversely curved projecting portions 28, 29 and 30 with horizontally slotted outlets 3|. Member 28 extends outwardly the farthest, with members 29 and 30 being stepped and spaced inwardly.

As shown in Figure 1 it will be seen that burner tips 23 are arranged `so that the slotted curved outlets 3| respectively of each of the burner portions 28, 29 and 30 form substantially continuous concentric circles.

'I'hus it is clear that, when ignited, a plurality of substantially concentric circles of llame are produced which sweep upwardly against the inner walls of re chamber I 3-I4. Members 28 produce a circle of flame of maximum diameter, while members 30 produce a concentric elevated circle of iiame of least diameter. At the same time an intermediate concentric circle of flame is produced from the mouths 3| of members 29.

It has been found that longitudinally curved slotted outlets 3| provide a particularly effective ame characteristic for yielding the maximum heat to the maximum surface area of fire walls Due to the upward draft through the furnace it has been found that the concentric circles of flame have an upward rolling and wall-sweeping or wall-washing eilect to produce the maximum heat transfer.

The circular spacer manifold plate 32 has an annular flange 33 which depends downwardly and projects between the spaced vertical projecting portions 34 of burner tips 23 to eectively support said tips in the circular arrangement shown in Figure 1.

A plurality of openings 35 are formed within the top of plate 32 to permit the upward passage of air through the furnace. Hollow gas manifold I5 has a threaded fitting 36 towhich may be joined a suitable gas source which is distributed to the plurality of burner tips 23 through the interconnecting nipples 20.

Having described my invention, reference should now be had to the claims which follow for determining the scope thereof.

1 claim:

The combination, annular walls having a vertical axis and forming aire chamber, a circular gas manifold therein coaxial with said ire chamber and joined to a gas source, a plurality of spaced vertically extending gas burners cir- -cumferentially distributed and joined to said manifold, and a plurality 0f vertically spaced sector shaped coaxial burner tips on each burner, with the arcuate portion of each tip having a horizontal elongated constricted and outwardly directed outlet slot, the corresponding burner tips of said burners at corresponding levels being arranged in substantially coaxial circles of vertically decreasing radii, and arranged for impingement upon said re chamber.

CHARLES E. FEINBERG.

REFERENCES CITED The following references are of record in the le of this patent:

' UNITED STATES PATENTS Number Name Date 977,214 Muirhead Nov. 29, 1910 1,142,098 Hopkins June 8, 1915 1,246,523 Backstrom Nov. 13, 1917 1,262,431 Backstrom Apr. 9, 1918 1,481,189 Daniels Jan. 15, 1924 1,649,218 Gilbert Nov. 15, 1927 1,768,234 Davis June 24, 1930 1,950,470 Bellamy Mar. 13, 1934 2,070,859 Howe Feb. 16, 1937 2,190,768 Bryant Feb. 20, 1940 2,210,228 Beckett Aug. 6, 1940 FOREIGN PATENTS Number Country Date 42,768 Austria June 25, 1910 113,239 Great Britain of 1918

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