US1440562A - Oil burner - Google Patents

Description

Patented dan. 2, 1923.

RUSSELL GAMES SLAYTER, 0F LA FAYETIE, INDIANA.

OIL BURNER.

Application le'd December 6, 1921. Serial No. 520,411.

To all whom t may concern Be it known that RUssELnGAMEs SLAY- TER, a citizen of the United States, residing at La Fayette, in the county of Tippecanoe and. State of Indiana, has invented cer` tain'new and useful Improvements in Oil Burners, of which the following is a speciiication. i

The object of this invention is to provide a newand improved type of burner for use with fuel oil.

This and other objects of this invention will be fully illustrated inthe drawing described in the specification and pointed out in the claims at the end thereof.

In' the accompanying drawing z' Figure 1 is a top. plan view of the burner.

Figure 2is a vertical cross section of the burner, the section being taken on the line 2)@-2X of Figure 1 i In the several gures of the drawing like reference numerals indicate like parts.

The burner forming the subject matter of this invention comprises the hollow base 1 which is made up of the tray 2 having a central opening in the bottom thereof. Placed on top of the tray 2 is the cover or burner plate 3 which is provided with the annular groove 4 into which the 'vertical flange of the tray 2 is'adapted to project to hold the cover plate in place thereon.

The ,top of the cover has a cone shaped elevation 5' formed in the center thereof through which the vertical duct 6 passes. The fuelsupply pipe 7 terminates into the duct 6 and the fuel oil passes into this duct and :out of it at the top of the cone shaped elevation. The oil flows down the sides of thecone shaped elevation into the shallow bowl Vformed at the top of the cover surrounding the cone shaped elevation.

Leading out from the cover of the hollow baseanear the outside thereof are the four openings 8, 9, 10 and 11. An equal number of ducts 12, 13, 14 and 15 extend upwardly from-each ofthe openings in the coverand curvel toward a common center above the cone'v shaped elevation 5 of the cover. At this point each of the four ducts lead into the spiral ducts 16, 17, 18 and 19 which are formed in the downwardly projecting throat provided at the end of the series of four ducts 12,13, 14 and 15. Each of the spiral ducts makes a quarter turn beginning at the end of each of the curved ducts and ending at the end of the downwardly projecting throat of the manifold formed by the ducts' and the throat. i

As heretofore pointed out the fuel oil passes through the .fuel supply pipe 7 and flows out of the top of the duct 6, the

amount of flow being regulated by a suitable needle valve (not shown) located at any convenient point in the fuel feedline. As it emerges from the duct 6 the oil flows down the sides of the cone 5 into the bowl formed by they burner plate in which the oil is ignited. The burning of the oil operates to heat the four ducts located above the burner plate and causes the air passing therethrough to be heated.

The air passing through the ducts of the manifold is drawn from the hollow base 1 into which it enters through the central opening 20 surrounding the fuel feed pipe 7. From the base 1 the air passes through the openings 8, 9, 10 and 11 into the ducts 12, 13, 14 and 15 respectively which are heated as heretofore pointed out. The air is heated in passing through the ducts 12,

13, 14 and 15, then enters vertical ducts' where it is given a whirling motion in passing therethrough. The heated air is then delivered at the end of the throat formed by the spiral ducts 16, 17, 18 and 19 and comes in contact with the cone shaped elevation and the oil flowing down on the sides thereof while still in this twirling motion. A very thorough mixing effect is thus secured between the fuel oil and the heated air so that a complete combustion of the oil is secured Without more than twenty percent excess air corresponding to a G02 content in flue gases of not less than fourteen percent.

1 claim:

1. 1n an oil burner, theA combination of a outer ends thereof, saidseries of ducts curving toward a common center and said spiral extensions projecting downwardly from the common center of saidl ducts.

2. 1n an oil burner, "the combination of a hollow base having an air inlet at the `bottom, a series of air ducts leading out of the top of said hollow base, said series of ducts being provided with spiral extensions at the outer ends thereof, said series of ducts curving toward a common center and sald spiral extenslons projecting downwardly from the common center of lsaid ducts, a bowl formed at the top of said hollow base, a conical ele- `vation i the center of said bowl forming a nozzle therein and an oil feed vpipe leading into said conical nozzle formed at the top of said hollow base.

3. In an oil burner, the combination of a hollow base having an air inlet at the bottom, a series of air ducts leading out of the top of said hollow base, said series of ducts beingprovided with spiral extensions at the outer ends thereof, said series of ducts curving toward a common center and said spiral extensions projectin downwardly from the common center of sald ducts, a bowl formed at the top of said hollow base, a conical ele- -vation in the center of said bowl forming a nozzle therein and-an oil feed pipe leading into said conical nozzle formed at the top of said hollow base, said tangential extensions of said ducts being located over *be conical sides of said nozzle.

In testimony whereof I aliix my signature.

RUSSELL GAMES SLAYTER.-

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