US1468480A - Oil burner - Google Patents

Description

,ing isa specification;

Patented Sept. 18, 1923.

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JOHNSON ID.. LAlfl'GrS'l0N, OF BIRMINGHAM, ALABAM'A.

oI L BURNER.

Application fild M3I0h-29p1922U Serial No. 547,600.

To all whomz't m'ay- 00720670'L11'f' Be ittknownzthat I, JOHNSON-D. LANGS- 'roN,a citizen ofthe United States, and a resident of Birmingham, in the county of Jefferson and "State-of Alabama, haveinvented certain new and :useful Improve- "ments in Oil B rners,"of which the follow- The. principal object of this invention is toprovide 'an oil burner-adapted to be inserted into any existing cooking stove, range from cooling currents of cold air.

Another object is to so construct the superheating bowl that it will encase and. protect the superheating coil from cold a1r currents, and V V A further object is to provide a new and improved burner that will generate a high degree of heat with a smallconsumptlon of fuel.

further objects as will hereinafter be apparent to those skilledin the art to wh1eh this appertains, the invention consists III the construction, combination and arrangement'of parts herein specifically described and illustrated in the accompanying drawings, wherein is shown a preferredembodimerit of the invention, but it is to be understood that changes, variations and modifications may be resorted to which fall within the scope of the claims hereunto appended.

In the drawings forming a portion of this specification Fig. 1 is a burner. I Fig. 2 is a section on the line 2-2 of Fig. 1 and j Fig. 3 is a section on the line 33 of Fi .1. V

is shown in the drawings, anair circulating drum 10 is provided with aplurahtyof lugs 11 which are adapted to engage with and support an annular outwardly pro ect--ing flange 12 formed upon the upper part of asuperheating bowl 13 wh ch as shown is preferably of a semi-spherical contour. Afuel feed pipe 14,'having acut ofi valve 14; is formed into an inverted U shaped portion15 upon thehorizontal reach 16 of plan view of my improved 'For the accomplishment of these and such which 'is secured a.deflector plate 17 the upper portion of the circulating drum preferably beingslotteda's at 18 to engage the lower ends of the vertical port-ions of the U.

.The feedpipe terminates adjacent the U portion in an inwardly directed bend 19 to :which is secured one end of a helically wound superheating and generatingcoil 20, theother end of which coil is curved downwardly around the inner lower surface of thebowl 13 and then upwardly through the centre of the coil terminating in afuel nozzle 21, the axis of whichis in alignment with the center of thedeflector plate 17. Theplate 17 is preferably provided with a series oflugs 17 to prevent warping or buckling.

The operation of the burner is as follows:

A small quantity of fuel is allowed to fioW into thesuper-heating bowl 13 in the usual manner and upon being ignited it will heat thesuperheating coil 20 to a sufficient temperature to volatilize the fuel which will be projected againstthedeflector plate 17 where it will be ignited. The air supply will flow upwardly through the annular space between the air drum and superheating bowl and due to the presence of the superheating bowl, there will not be a sufiicient supply of oxygen to permit the combustion of the fuel until it strikes the deflector plate, the intervening space between thefuel nozzle 21 and the deflectorforining a neutral zone. 1

As the superheating bowl completely oncases the superheating coil on its lower side, the cool air aupply is prevented from contacting with the super-heating coil and cooling it. It will. thus be seen that a. higher working "temperature of the coil will be maintained and because of the arrangement whereby the fuel is prevented from igniting until it strikes the deflector plate, a greater efficiency of operation is obtained due to the expansion of the fuel jet as it passes through the neutral zone and the consequent breaking up of the fuel particles. Again due to the presence of the feed pipe 14-16 over the flame, the fuel will receive a preheating before it reaches the super-heating Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In a burner, an air drum, a superheating coil, terminating in a fuel nozzle, a defiector plate spaced from said nozzle. a generating bowl partiallyencasing said coil,

said bowl and coil spaced from andbelow said deflector within said air drum to deflect the air supply currents and define a. neutral zone whereby the combustion of fuel, will be prevented until said fuel reaches said deflector plate.

2. In a burner, an air drum, a superheating coil .IllOlll'ltQCl within said air drum, a feed pipe connected with said superheating coil, a-defiector platesupported by said feed pipe, a generator bowl constructed and arranged to partially encase said coil and prevent contact of the cool air current with said coil and a portion of said feed pipe passing through the flame region whereby a preheating of the fuel is obtained before it reaches the superheating coil.

3. An oil burner comprising an air drum,

7 said drum provided with means to support a a feed pipe, a super-heating coil having one of its ends attached to said feed pipe, a fuel nozzle secured on the other end of said coil and a preheating bowl spaced from said drum to allow a passage for the air supply between said bowl and drum said bowl encooling of said coil by said air supply.

Signed at Birmingham, in the county of Jefferson and State of Alabama, this 13th day of March A. D. 1922.

JOHNSOND. LANGSTON.

casing the lower side of said coil to prevent--

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