US2040089A - Oil burner - Google Patents

Description

Z E D N A N R E F G A OIL BURNER Original Filed Nov. 8, 1953 Z w n T N NN m M m N 0% l k im- .0 ,1 w W n 0 5 ha N w N F i MN. N m Z 7 MN .QN! w m Q RN N QN MNQ W Y B 0 NW G. m A

Patented May 12, 1936 UNITED STATES PATENT OFFICE OIL BURNER York Application November 8, 1933, Serial No. 697,188 Renewed April 6, 1935 7' Claims. (01. 158-65) This invention relates to burners especially adapted for vaporizing and burning crude or highly volatile liquid fuel, and has for the primary object the provision of a device of the above stated character which will not require replacement of parts during its use and is so designed that carbon and other residues will not interfere with its continuous and successful operation over maximum periods of time and when dirty may be easily and quickly cleaned to be restored to its original condition.

Another object of the invention is the provision of a gasifier built in and forming an integral part of the body of the burner so as to be protected from injury and to be kept at a desired temperature by the burning fuel so as to thoroughly heat the fuel from vaporization when reaching the mixing chamber along with air whereby proper and efficient combustion may be had.

With these and other objects in view this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure l is a top plan view illustrating a burner constructed in accordance with my invention.

Figure 2 is a horizontal sectional view illustrating the same.

Figure 3 is a sectional view taken on the line 3-3 of Figure 1.

Figure 4 is a perspective view illustrating a cap or deflector which cooperates with the body in forming mixing and combustion chambers.

Referring in detail to the drawing, the numeral l indicates a rectangular shaped body having formed at its upper face a circular-shaped recess 2. The bottom wall of the recess is provided with a combined fuel and air opening 3 located centrally of the recess 2. The bottom wall of the recess 2 about the opening 3 is enlarged or thickened about the opening 3 to form lips 4 and 5. The lip 4 is disposed within the recess 2, while the lip 5 depends from the bottom wall of the recess. A depending L-shaped member 6 is formed integrally with the body adjacent one side thereof and the angularly related portions of the L-shaped member are bored to form a fuel passage 1. The angularly related portions are bored from their ends and normally closed by removable plugs 8. The free end of the L-shaped member terminates under the opening 3 of the body and is provided 55 with a screw threaded opening to receive a threaded jet 9, the orifice l0 being disposed centrally of the opening 3 and is slightly flared to direct fuel through the opening 3. The body I adjacent its sides is drilled to form a passage ll arranged on four sides of the body and the passage at one end communicates with the passage 1 of the member 6 and the other end of the passage 11 communicates with the bore of a substantially T-shaped fitting or member I2 to which a fuel supply pipe l3 may be secured. The fuel in order to pass from the element l2 to the passage 1 of the member 6 must travel about four sides of the body due to the arrangement of the passage H. The passage II when the body is heated provides an eflicient fuel heater so that the fuel on reaching the member 6 and the jet 9 will be in a vaporized or volatile condition.

The passage 1 I is formed in the body by boring the latter inwardly from its sides and plugs M are employed to close the passage l l where it extends through the sides of the body. The body upon its sides is provided with flanges 15 which besides providing mediums for aiding a person in lifting the body or for supporting the body upon a rack or the like provides protection to the plugs M.

A deflector [6 in the form of a flanged cap is arranged in the recess 2 and rests upon the bottom wall thereof and overlies the opening 3 forming the recess 2 into a mixing chamber I1 and a combustion chamber l8. The flanged portion of the deflector is provided with slots I 9 establishing communication between the mixing chamber l1 and the combustion chamber l8. Lugs 20 are formed on the deflector and engage opposite sides of the lip 4 to properly center the deflector in the recess 2. The annular wall of the recess 2 is cut or flared in angular directions to form beveled portions 2| and 22 and said portions meet below the upper edge of the cap of the deflector IS. The cap at its upper edge is provided with an annular flange 23 for cooperating with the flared portion 2| of the combustion chamber in directing the burning fuel outwardly in a circular path, the inclined portion 22 of the combustion chamber first directing the burning fuel towards the flange 23 of the deflector where said fuel on striking the flange is caused to spread outwardly of the combustion chamber.

Any carbon or other foreign matter passing with the fuel from the passage H into the passage may accumulate in the latter and thereby retard the clogging of the jet 9. The fuel as it passes from the jet through the opening 3 in the mixing chamber draws air into said chamber by way of the opening 3 and the air and fuel passing through the slots or notches I9 into the combustion chamber become thoroughly mixed to sustain proper combustion. The passage 1 as well as the passage I I may be readily cleaned of any accumulated foreign matter by removal of the plugs 8 and I4. To clean the jet 9, it is only necessary to unscrew the same from the member 6 and any carbon or foreign matter accumulating within the mixing chamber I! can be readily removed by lifting the deflector I6 out i of the recess 2. r 7

Due to the construction of the body of the burner with the gasifying passage II therein it will retain suificient heat for a reasonable length of time after the extinguishing of the flame of the burner from some cause that the burner may be again lighted without preheating. It is to be understood to start the burner when cold it is only necessary to preheat the body to sufficient temperature to cause the fuel passing through the passage II to be heated to render it volatile when leaving the jet 9. Further it is to be noted that due to the construction of the deflector and the combustion chamber I 8, the spreading of liquid upon the burner will not extinguish the flame. Due to the particular shape of the element I2 it will act as a back pressure valve for the fuel entering the passage II to prevent the flame from the burner or combustion chamber from having a pulsating effect heretofore common in liquid fuel burners. The arrangement of combustion chamber and the deflector for spreading the flame in a circular path will permit the burner to operate quietly and be free of undesirable noises.

Having described the invention, I claim:

Y 1. A liquid fuel burner comprising a rectangular shaped body having a circular-shaped recess opening outwardly through the upper face of said body and presenting an annular wall provided with oppositely beveled portions extending between the outer and inner edges of said annular wall, an annular deflecting cap located in the recess and spaced from the annular wall and itsv oppositely beveled portions to define a combustion chamber, said cap having a notched annular flange resting on the inner wall of the recess to form a mixing chamber, a marginal deflecting flange on the cap and located above one of the beveled portions and spaced from the other beveled portion, and means for introducing air and fuel to said mixing chamber.

2. A liquid-fuel, gas generating burner comprising a one-piece metal body having in its upper face a recess with a bottom wall defined interiorly by a main central opening and exteriorly by a wall spaced widely from said opening and a separately formed removable deflecting cap having a notched inferior flange resting on said imperforate bottom of said recess and spaced from said opening and wall respectively, said cap serving to define with the central part of the body a central mixing chamber, and to define with said outer wall a combustion chamber having an imperforate bottom wall and a restricted outlet, said outer wall having vaporizing ducts adjacent said combustion chamber, means for introducing fuel for said burner into said ducts and means for delivering the vaporized fuel to the central opening.

3. A liquid-fuel burner comprising a one-piece metal body having in its upper face a recess with a bottom wall of annular form defined interiorly by a main central opening surrounded by an upright lip, and exteriorly by a concentric wall spaced widely from said lip; and a separately formed removable deflecting cap having a notched annular inferior flange resting on said imperforate bottomof said recess and spaced from said lip and concentric wall respectively, serving to define with said lip a central mixing chamber, and to define with said concentric outer wall an annular combustion chamber having an imperforate bottom wall and a restricted. outlet passage.

4. A liquid-fuel burner comprising a one-piece metal body having in its upper face a recess with a bottom wall of annular form defined interiorly by a main central opening surrounded by an upright lip, and exteriorly by a concentric wall spaced widely from said lip; and a separately formed removable deflecting cap having a notched annular inferior flange resting on said imperforate bottom of said recess and spaced from said lip and concentric wall respectively, serving to define with said lip a central mixing chamber, and to define with said concentric outer wall an annular combustion chamber having an imperforate bottom wall, said cap having its peripheral upper margin so disposed relatively to the circumjacent concentric wall as to form therewith a constricted annular burner throat.

5. A liquid-fuel burner comprising a one-piece metal body having in its upper face a recess with a bottom wall of annular form defined interiorly by a main central opening surrounded by an upright lip, and exteriorly by a concentric wall spaced widely from said lip; and a separately formed removable deflecting cap having a notched annular inferior flange resting on said imperforate bottom of said recess and spaced from said lip and concentric wall respectively, serving to define with said lip a central mixing chamber, and to define with said concentric outer wall an annular combustion chamber having an imperforate bottom wall and a restricted outlet, said cap having a series of centrally disposed inner, downwardly extending studs spaced suitably to be engaged with the lip around the main central opening, whereby the cap retains its centralized position.

6. A liquid fuel gas generating burner comprising a one piece metal body having a recess in its upper face, the bottom wall of said recess having an opening in its center and being otherwise imperforate, a removable deflecting cap having an inferior flange resting on the bottom wall of said recess, said flange being spaced from the said opening and from the outer wall of the recess to define with the central part of the body a central mixing chamber and to define with the outer wall of the recess a combustion chamber having an imperforate bottom wall, said metal body having vaporizing ducts formed in the said outer Wall of the recess, said ducts being adjacent to the recess and having the said outer wall in common with the recess, the inferior flange of said deflecting cap being provided with shallow notches to direct the flame issuing from the mix- ,ing chamber along the bottom wall of the combustion chamber and against the lower end of the said outer wall, said outer wall serving to direct the flame upwardly along its surface and then out of the burner through the space between the said deflecting cap and the said outer wall, means for introducing fuel for said burner into said ducts and means for delivering vaporized fuel and air to the central opening.

- 7. A liquid fuel gas generating burner comprising a one piece metal body having a recess in its upper face, the bottom wall of said recess having an opening in its center and being otherwise imperforate, a removable deflecting cap defining with said bottom wall a central mixing chamber, and with the bottom wall and the outer wall of the above-mentioned recess a combustion chamber having an imperforate bottom wall, said metal body having vaporizing ducts formed in the said outer wall of the recess, said ducts being adjacent to the recess and having the said outer wall in common with the said combustion chamber, the

said deflecting cap being arranged to direct the mixture of air and gasifled fuel into the combustion chamber and against said outer wall, said outer wall serving to direct the flame upwardly and then out of the combustion chamber through the space between the said deflecting cap and the said outer wall, means for introducing fuel for said burner into said ducts and means for delivering vaporized fuel and air to the central opening.

ALEJANDRO GABRIELLI FERNANDEZ.

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