US2550296A - Gas burner, including internal fuel distributor - Google Patents

Description

"April 24, 1951 J. L. RAULSTON GAS BURNER, INCLUDING INTERNAL FUEL DISTRIBUTOR Filed Feb. 25, 1947 IN VEN TOR. J. L. RAULSTON FIG.

FIG- .3

ATTO RNEY Patented Apr. 24, real GASFIBURNER,

IlWCLUDING INTERNAL FUEL DISTRIBUTOR ames L. Raulston, South Pittsburg, Tenn. Application February 25, 194i, Serial No. 730,812

1 Claim.

This invention relatesto heating and more particularly to heating by the use of gas or the like.

It is an object of the invention to provide a burner for gas, of simple and inexpensive construction, and from which maximum heat can be obtained.

A further object of the invention is to provide a burner having a series of groups of burner ports supplied from a single manifold.

Another object of the invention is to provide a burner having raised ports so that increased secondary air will be supplied to the gas containing primary air for improving combustion without undesirable flashback, odors, and the like.

A further object of the invention is to provide a burner of sufiiciently wide application that it is particularly adaptable for use, both as a space heater and in connection with a stove, furnace, or the like. 7

Further objects and advantages of the invention will be apparent'from the following specification taken in conjunction with the accompanying drawing, wherein;

Fig. 1 is a front elevation with a portion broken away to show the burner in position;

Fig.2, a vertical section; and

Fig. 3, a fragmentary perspective.

With continued reference to the drawing, there is shown in Fig. 1 a modern type space heater, including a base IS, a radiant housing II, a guard rail I2, and radiants I3.

The radiants are of conventional construction and are supplied with combustible fluid in the form of a combination of gas and primary and secondary air from a burner constituting the essence of the present invention.

The burner is preferably ahollow, elongated structure and includes a manifold I4 to which gas is supplied from a line I5 through an adjusting valve I6, an air valve I! for controlling the amount of air supplied to the gas prior to its passing into the mixing chamber I8 and posts 25 maybe provided to support the radiants I3. Said burner is preferably a cast unitary structure but may be made by other means if desired.

Gas from the mixing chamber I8 is supplied to the manifold I 4 and distributed therein to the several groups of raised ports I9. In order that all of the ports will be supplied a pair of longitudinal baffles 20 and 21 are provided extending substantially from one end of the manifold to the other. These bafiles have their adjacent edges in parallel relation in order, to constitute a relatively narrow space or fuel slot between them through which and beyond the ends of which the gas may pass. In-order that gas may pass around the ends of them, said bafiles are reduced at their extremities by notches providing enlarged openings 22. These permit increased volume of gas to flow into the ends of the manifold and toward the center of the same between and above the baflles so that even distribution of the combustible mixture tothe raised burner ports I9 is accomplished.

The ports I9 are defined by annular raised portions or bosses and are spaced apart sumciently to allow circulation of air around them for combination with the mixture of air and gas discharged through the several ports and thus improve combustion.

Said ports are disposed in the upper wall or top of the burner, and are arranged in longitudinal spaced groups of three rows each, the intermediate row being staggered relative to the other rows.

Furthermore, both sides of the manifold I4, from the base of the ports I9, to a point below, are providedwith downwardly tapered or inclined surfaces 23 and 24 which will further improve combustion, as secondary air will reach the ports I9 unobstructed.

Two rows of ports have been employed; however, with ports I9 raised as in the present construction, an intermediate or third row of ports 'can be used and with improved results, including the spacing ofthe flame from the heated metal body of the burner so that cooling of the raised ports is accomplished and flash back is prevented.

It will be obvious to those skilled in the art that various changes may be made in the invention without departing from the spirit and scope thereof and therefor the invention is not limited by that which is shown in the drawing and described in the specification but only as indicated in the appended claim.

What is claimed is:

A burner comprisin an elongated hollow manifold having a bottom and asubstantially flat top with downwardly sloping side walls and ends, said side walls being substantially uniformly spaced throughout their length whereby the cross sectional area defined by said side walls and bottom is substantially uniform throughout the length of the manifold, a first row of bosses located on said top adjacent one downwardly sloping side wall, a second row of bosses on said top adjacent the other downwardly sloping side wall,

3 each boss of the second row being opposite the corresponding boss on the first row, a third row of bosses located on said top intermediate the first and second rows with each boss of the third row in staggered relation to the bosses of the first and second rows, each of said bosses having a port extending therethrough and through said top and providing communication with the manifold, a first elongated baffle within said manifold having one edge abutting one side of said manifold and secured thereto and having its opposite edge extending towards the other side, a second elongated bafile within said manifold having one edge abutting the other side of the manifold and 4 defining a fuel slot therebetween, said bafiles being notched adjacent their ends forming enlarged openings for the passage of fuel, and said manifold having a fuel inlet below said baffles.

JAB/ES L. RAULS'I'ON.

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

UNITED STATES PATENTS Lotter Aug. 24, 1943

Images