US1505753A - Oil burner for heaters - Google Patents

Description

Aug. 19, 1924. 1,505,753

P. TOTl OI L BURNER FOR HEATERS Filed Dec. 11. 1923 INVENTOR Peze/f 75%;

Patented Aug. 19, 19 24.

UNETE STATES PETER omi, FJPHILADELPH'IA, PENNSYLVANIA.

OIL BURNER FOR. HEATERS.

Application filed December 11, 1923. SeriaLNo; 679,922.

To all whom it may concern:

Be it known that I, PETER Torr, a citizen of the United States, and a resident of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Oil Burners for Heaters, of which the following is a speci fication.

The present invention relates to burners using oil as a fuel, and which are to be employed with hot air heaters, hot water or steam heaters, or any other heater for house heating purposes.

Some of the objects of the present invention are to provide a simple, economical and practical oil burner for use in furnaces of the type heretofore using coal or wood as a fuel; to provide an oil burner so arranged and constructed as to completely vaporize the oil as it is supplied to the burner and eliminate smoke; to provide an oil burner so located and arranged with respect to the air supply as to operate without the odor usually present in oil burners; to provide an oil burner construction in which the oil is supplied to the burner and burned without the undesirable roar or noise of the combustionfto provide-an oil burner and supply system therefor which operatesas a unit without requiring hydraulic or electric pumps or any other pressure producing mechanism; to provide an oil burner in which the fuel is supplied in regulated quantities by gravity, and can be adjusted to give a desired burner temperature; and to provide other improvements as will hereinafter appear.

In the accompanying drawings, Fig. 1 represents a side elevation, partly broken away, of a heater system embodying one form of the present invention; Fig. 2 IBPIB', sents a plan of the burner of the present invention; Fig. 3 represents a section on line 33 of Fig. 2; Fig. 4 represents a sec tional elevation of a form of water heater embodying the burner of the present invention.

. Referring to the drawings, one form of the present invention is shown in Fig. 1 as installed in connection with a heater or furnace 10 which is of the hot air type,

' having a grate 11 of the usual form, and to nected to the ordinary coal burning furnace without dispensing with any of its parts or making any material alteration in its construction and operation, though it will be understood in someinstances the present, in-

vention will befurnished with its own cas- As a means for supplying heat units to the furnace, a burner 13 of novel formof construction is provided, consisting of a shell .14'closed at its bottom and sides. but open at the top for the purpose of receiving the burner unit 15 and also for serving as ameans for directing the flame upward and concentrating it in the desired manner. The shell 14 is preferably of substantially oval shape, and is formed of a special cast alloy to withstand the intense heat to which it is subjected, and the fact that when the burner is in use it becomes highly heated serves to increase the eifective heating area of the burner. The burner unit 15 consists of a copper pipeor other pipe 16 of suitable material, which enters the top of the shell 14, where'it is directed substantially horizontal or parallel to thebottom of the shell in the form of two pipe ,convolutions arranged in superposed relation, the lower of which terminates in a closedend and has a plurality of burner outlets 17 in two opposite side walls. the oil fuel inwardly and upwardly into the free space of the oval, so that'the two series of inwardly directedjets meet, and combine to produce a veryintense, perfect-burning flame. This burning of the oilvapor is made possible by the provision of an air inlet 18, located at the lower portion of one end of the shell 14, and; by the provision'fof a sec- 0nd air inlet 19, located at a diiferent point in the wall of the shell 14, and in relatively close proximity to the top thereof. It has been found by experiment that a burner so constructed and having its air inlets at op posite ends of the shell 14, one being ,relatively near the bottomand the other'rela tively near the top, gives a combustion which is free from odor, smoke and noise. Thus, by properly positioning the inlet 1.8 in substantially horizontal alinement with the lower convolutions ofthe burner coils, the air which here enters mixes with the oil vapor at the moment of its egress from the outlet 17 and produces a mixture which burns clean and free. The rising productsfr'oii the burner incident tothis combustion are These outlets 17 serve to discharge then met by air entering by way of the upper inlet 19, so that any oil or other combustible products rising with the flame and otherwise unconsumed are caused to be ignited by the freshentering air, and thus finally completing the combustion and making use of all of the available heat units.

In assembled condition the shell 1a is arranged to be supported upon. the grate-11 of the heater, thus taking the place of the bed of fuel heretofore employed, while the liquid fuel is supplied to the burner by way of a supply pipe 20, which for convenience trav erses an opening 21 formed in the furnace door 12. It will be understood, however, that this pipe may be brought in at any desired point in the wall of the heater, so long as the oil is properly fed to the burner. As here shown, the supply pipe 20 extends exterior of the heater 10, where it is joined to a feed pipe 22 leading from the bottom of an oil or other liquid fuel tank 23, which is located at a convenient height above the burner 15, so that the oil will flow freely by gravity from the tank by way of the feed pipe 22 to the burner. In the present construction, the fuel tank 20 is designed to hold approximately twenty gallons of fuel, but naturally the size of this supply tank is subject to' variation to suit conditions.

In order to control the supply of fuel to the burner, a main control valve 24' is located at a convenient point for manual manipulation in the feed pipe 22, while at the point of juncture of the feed pipe 22 to the supply pipe 20 a needle valve 25 is provided, by

means of which the quantity of oil entering the supply pipe 20 can be adjusted to-meet the requirements. In Fig. 4 of the drawings, the present invention is shown and applied to a heating structure particularly arranged for use with the present burner, where a hot water, vaporor steam system is to be employed. In thisform, the burner unit 15 is located in the'bottom of a casing 26, which is relatively small in size, and has a smoke flue 27arranged to be connected to a chimney to better feed the products from the burner. In the upper portion of the casing 26 are located the coils 28 and through which the water to be heated for the heating system circulates and finally traverses an outlet pipe 29, which is located directly in the heat zone of the burner. A unit of this kind can also be employed for steam or vapor heaters, as will be understood.

In the operation of the system, the fuel tank 23 is filled with the proper grade of liquid fuel and the valve 24 opened wide to permit a free flow to the feed pipe 22. IVith the needle valve 25 adjusted to the required opening, the oil will now pass to the burner, and when lighted will burn with great intensity, thereby not only maintaining the burner coil heated to produce vaporization of the enteringoil liquid, but also to heat the shell 14, and maintain it substantially red hotduring the operation of the burner.

It will now'be apparent that I have devised a complete unitary oil burning. system which is simple in construction, cheap to manufacture and efficient in operation, which system is readily installed with any type of furnace or heater now in use to take the place of the heating means theretofore employed. Furthermore, the burner and its adjuncts are so constructed that there is no noise accompanying the burning of the fuel, while odors and smoke are dispensed with by the provision of suitably proportioned air inlets in the shell of the burner. It is also to be noted that the burner structure includes a receptacle which is, brought to a state of substantial incandescence without melting or disintegrating. This is an important factor in the efficient operation of the oil burner since it retains the heat and concentrates it in the desired manner for best results and saving of oil fuel.

Having thus described myinvent-ion, I claim:

1. The combination with a heating plant including a furnace having a grate, of an oil burner comprising an elongated, imperforate walled open top receptacle adapted to seat on said grate, a gravity oil feed pipe extending through the'wall. of said furnace and down in said receptacle, said pipe terminating in a pair of convolutions conforming to the wall of the receptacle with the lower convolution resting on the bottom of said receptacle, said lower convolution having a plurality of inwardly and upwardly extending oil discharge outlets, and a pair of air inlets located respectively at opposite ends of said receptacle, one of said inlets be ing in close proximity to the bottom of the receptacle and the other in close proximity to the top edge thereof, whereby complete combustion is promoted and "smoke and noise eliminated.

2. An oil burner for heaters comprising an imperforate walled open top receptacle, a gravity feed oil pipe extending down into said receptacle, and said pipe terminating in two superposed convolutions with the bottom convolution having a plurality of inward'ly and upwardly extending fuel outlets, oppositely arranged air inlets in the wall of said receptacle adjacent the upper and lower ends of said wall respectively, and said receptacle formed of material adaptedto easily become incandescent under heat.

Signed at Philadelphia, in the county of Philadelphia, and State of Pennsylvania, this 7th day of December, 1923.

PETER TQTI.

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