US1616862A - Gas burner - Google Patents

Description

Feb. 8; 1927.

T. A. LEWIS GAS BURNER Filed April 26, 1926 ZdA'. Jews INVENTOR ATTORNEY Patented Feb. 8, 1927. s r

'TEID A. LEWIS, or neuron, Taxes, assrenon TO TED Lewis a col, or zonn'ron,

TEXAS.

GAS BURNER.

Application filed April 26, 1926. Serial No. 104,591.

This invention relates to improvements in gas burners, having particularreference to gas burners for boilers of steam engines,

a very low pressure of and so construct- 7 ed that the gas will. be fed uniformly to the burner to exclude the possibility of pocket-- ing of the gas.

Another particular object'of the invention is that the gas is heated prior to its ignition, and the inflow of gas is at all times greater in volume than the outflow, thereby obtaining a uniform pressure in the burner.

Further objects, including means for preventing the outer end of the burner from becoming overheated, will be brought out in the following detailed description,.in connection with the annexed drawings, and wherein:

Figure 1 is a side elevational view of a steam boiler, and illustrating an embodiment of the burner.

Figure 2 is a top plan view of the burner, partly in section on the line 22 of Fig. 1.

Figures 3 and 4 are enlarged cross-sectional views along lines 3-3 and 4.l respectively of Figure 2; and

Figure 5 is an enlarged detail view of one of the burner tips.

Proceeding in accordance with the drawings and wherein numerals are employed to designate the various parts, 1" denotes a boiler supported over a furnace 2, including a front portion 3 with opening 4. Over the opening is a door 5, the door also having an opening for the burner embodying the invention.

This burner is illustrated in assembled form in a top plan view in Figure 2, and con sists of a cylindrical gas receiver head 6 having apertures in its periphery on opposite sides for pipes 7 and 8, conveying gas.

from a convenient source of supply. The front of the head, looking toward the boiler door, is closed and spaced apart in the rear of the head are apertures in which are placed the burner tubes 9. These tubes are'firmly seated in the openings so as to lie flush with the inside of the rear of the head.

Referring again to the gas feed pipes 7 and 8,.these pipes are disposed on opposite sides of the burner head 6 and the inner ends of the pipes have a curved lip 10 and direction of the arrows;

an opening 11. The gas entering'the pipes is thus forced into the head in acurved path and 1S whirled around inside the head in the p The entrance of gas on opposite sides of the head thus pro vides an ample supply and forms a whirling or circulatory movement prior to its entrance a to theburner tubes 9. The object of the circulatory movement ofthe gas is to prevent pocketing thereof and to provide a uniform and steady pressure and feeding of gas to the burner tubes 9. l

Spaced apart from the burner head ,6 is a cylindrical body 12 in which are carriedthe burner tubes. The tubes areheld in spaced relation in this body 12 by a collar 13, hav- I ing web portions 14;. By reference to Figure 2 it will be observed that the tubes 00- cupy a cylindrical formation in assembled formation, being spaced from the inner periphery 15 of the body 12. Also that the outer ends 16 of the tubes do not extend to the edge of the body 12, but are spaced inward therefrom. On the ends of the tubes are disposed burner tips 17, having perforations 18, H

Disposed in slidable relation on the outer periphery of the body 12 is a sleeve 19. This sleeve has a set screw 20 for holding the sleeve in adjusted position. This sleeveis capable of adjustment backward and forward on the body 12- to properly regulate the admission of air between the inner periphery 15 of the body 12 and the tubes 9.

From the foregoing it will be apparent that the gas, which may either be natural, artificial or acetylene, enters the burner head 6 and is amply circulated or whirled around in the head and is thus fed outward to the burner tubes. The arrangement is such that the volume of gas in the burner head is always larger than the output through the burners, thus maintaining a constant pressure and volume. In the arrangement of the burner tips inwardly from the outer end of thebody 12, the air and gas are permitted to come together inside the body and the air, entering the annular space A and around the space E thus causes the gas from the burner tips tobe forced outwardly along the plane of the longitudinal inner surface of the body 12, the flame not touching the body 12. The gas is thus ignited and mingled and mixed with the air and combustion takes place just within the body 12, and the heat is not intense enough to scale the body 12 or allow it to berily the air is permitted to enter behind the flow of gas and mixes with the gas prior to By the present arrangement the,

ignition. air is cold or approximately 0001 7 before mixing with the gas. A blue flame can be provided by this construction and the burner operated on very low gas pressure.

Obviously, minor changes may be made in the construction of the burner, in keeping and within the scope and meaning of the annexed claims. 'What I claim is;

1. A gas burner comprising a burner head provided with openings on opposite sides in its-periphery for gas "feed lines, said openings having pipes extending into the head, the in- V ner ends of the pipes being curved in opposite directions to cause the gasto whirl within the head, tubular burner pipes communicating with the interior- 0f the burner head and spaced apart in one end of said head and provided with perforated burner tips on their outer ends, a cylindrical member spaced apart from the head and in which the tubular burner pipes are disposed, and

an adjustable sleeve on the cylindrical memher for air regulation.

2. A gas burner comprising a head for receiving a volume of gas, pipes entering the head on opposite sides in its periphery and having oppositely curved inner ends projecting into the head; a cylindrical member spaced apart from head, a plurality of spaced apart burner tubes connected at their inner ends to and having open communication with said head and projecting into said cylindrical member short of the outer end. of said cylindrical member; periorated burner tips on said tubes, and a sleeve on said cylindrical member for controlllngair.

In testimony whereof I aihx my signature.

TED A. LEWIS.

Images