US1574560A - Oil burner - Google Patents

Description

Feb. 23 1926. '1,574,560

T. CRAWFORD okL BURNER Filed March 19, 1925 F'IG. 1

15J?. Cr/'Win77 Patented Feb. 23, 1926.

UNITE@ STA'IES THOMAS A. CRAWFORD, OF SACRAMENTO, CALIFORNIA.

OIL BURNER.

Application filed March 19, 1925. Serial No.. 16,743.

Be it known that l, THOMAS A. CRAW- ronn, a citizen of the United States of America, residing at Sacramento, in the county of Sacramento and State of California, have invented certain new and useful Improvements in Oil Burners, of which the following is a specification.

This invention relates to new and useful improvements in oil burners.

The primary object of this invention is to provide a burner adapted for consuming kerosene and 'distillate as a fuel by preheating the oil prior to its reaching the point of discharge so that it will vaporize and be `discharged as combustible gas.

A Vfurther object of the invention is to provide a novel form of burner for accomplishing the above set forth purpose.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical sectional view of a burner pan and mixing chamber with a burner jet properly associated therewith. and a deflector shown in elevation supported by the said conduit,

Figure 2 is an elevational view of the conical mixing chamber shown in Fig. 1, and

Figure 3 is a fragmentary top plan view of a portion of the burner pan and shows the igniting wick carried thereby.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of this invention, the numeral 5 designates the fuel conduit in its entirety which consists of a plurality of pipe sections connected at their ends by elbows and arranged for forming a return bend or rectangular outline. The en'd pipe section 5- has suitably connected to its free end the T-coupling 6 which has a nozzle or jet 7 threaded in one of the openings of the coupling while a solid plug 8 is removably threaded in the remaining opening. The jet or nozzle 7 is provided with arelatively large bore 9 extending substantially entirely through the jet or nozzle with a reduced bore 10 extending the remainder of its length, the said reduced bore 10 causing the gaseous fuel to be discharged with considerable velocity while the enlarged bore 9 will pern'iit the jet or nozzle to automatically clean itself of all soot or foreign matter. A line wire'mesh screen 11 is located within the body portion of the coupling .G and is employed for straining the fuel prior to its reaching the discharge jet or nozzle 7, for the purpose of preventing clogging of the latte-r.

Suitably 'mounted uponone of the vertical pipe sections of the fuel conduit 5, as by the two part clamp structure 12, is a burner pan 13 which is of substantially circular forma.- tion having a flat bottom surface 13l and a conical or radially sloping top surface 13b. The peripheral edge of this pan 13 is provided with an upstanding flange 14 while suitably spaced inwardly thereof is'forme'd a circular series of lugs 15 whichare suitably spaced, as best illustrated in Fig. 3, for forming the openings 16. Arranged in the annular space formed between the flange 14 and circular series of lugs 15 is an asbestos ring 17 having a cross-sectional shape, as shown in Fig. 1, which is of triangular formation with its greatest thickness adjacent the circular series of lugs 15.

Resting upon the pan 13 and retained centrally located in respect thereto by the circular series of lugs 13 is a conical mixing chamber 18 having its apex apertured at 19.

and further having a circular series of substantially round holes 520` formed in its larger end which communicate through the edge of this end.

Supported by the upper horizontal pipe section of the fuel conduit is a substantially circular deflector disk or plate 21 which is intended to be arranged concentrically with the conical mixing chamber 18 and the jet or nozzle 7.

The operation of this burner may be described as follows To light the burner, the operator starts the flow of crude oil through the conduit 5, by means of any suitable valve structure interposed in the conduit and not shown, until a desired amount of the oil has overilowed from the jet or nozzle 7 onto the conical or radially sloping surface 13b of the burner pan 13. This overflowing oil will drain outwardly to the asbestos wick 17 which will be saturated with the same. The flow of oil should then be shut off and the oil in the wick 17 i nited. This burning oil will heat the sections of the conduit 5 located above and around the same and will also tend to heat the mixing chamber 18. lifter the oil in the conduit has been properly heated to cause the same to vaporize, the oil supply is again turned'on and the gaseous fuel is discharged from the jet or nozzle 7 into the mixing' chamber 18 from which it will escape upwardly through the aperture 19, the said escaping gas being vignited by the burning oil in the Wick 17. The upward travel ol fuel through the mixing` chamber 18 will cause air to be sucked into the same through the openings 2O at the lower edge thereof` andthis air will be mixed with the fuel for producingv a desired mixture. The flame Will impinge against the deflector disk or plate 21 and will be spread radially outwardly by the same, producing a very hot blaze and continuing to heat the oil as it passes through the conduit 5.

Itis to be understood that the form of this invention herewith shown and described is to be taken asapre'ierred example of the same, and that Various changes in the shape, size, and arrangement otparts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, I claim:-

l. In a burner of the type described, a

burner pan comprisingl a disk-like body portion having a. radially sloping 'top surface, a circular series oft spaced lugs projecting perpendicular-ly from the top face of the body portion, and a perpendicular flange formed on the peripl'leral edge oit the pan, a Wick carried by the pan between the flange and the circular series of lugs, a burner nozzle centrally disposed above said pan, and a conical mixing' chamber resting upon said pan and conlining said burner nozzle.

2. In a burner of the type described, a burner pan con'iprising a body portion haying a sloping top Surface, a series of lugs projecting from the top surface of the body portion, and a dang-e formed on the top sur- :tace of the body portion in spaced relation to the series of lugs a. Wick carried by the pan between the flange and series of lugs, a burner nozzle disposed above said pan, and a mixing chamber above the pan and conlining' said burner nozzle.

In testimony whereof I aiiix my Signature.

THOMAS A. CRAWFORD.

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