US1488349A - Oil burner - Google Patents

Description

c. M. KEITH ET AL March 25 1924.

OIL BURNER 'Filed May 29, 1922 Cka'rZeJ M; Jfez'ih and ma M.Pam/J%rey, f%fi WiZne-G {QM M Fatented Mar. 25, 1924.

CHARLES M. KEITH AND MAX M. PUMPI-IREY, OF KANSAS CITY, MISSOURI, ASSIGNORS TO B. J. HALL AND J. L. BUTLER, BOTH OF KANSAS CITY, MISSOURI.

OIL BURNER.

Application filed May 29, 1922. Serial No. 564,491.

To all whom it may concern:

Be it known that we, CHARLES M. KEITH and Max M. PUMPHREY, citizens of the United States, residing at Kansas City, in the count-y of Jackson and State of Missouri, have invented certain new and useful Improvements in Oil Burners, of which the following is a specification.

Our invention relates to oil burners and refers more particularly to that type of burner employed in stoves or furnaces for utilizing oil as a fuel instead of coal.

One object of the invention is the provision of an oil burner which can be readily installed in the fire box of astove or the fire pot of a furnace and which will use oil as a fuel supplied thereto by the force of gravity; one which is economical in the consumption of oil, and one which will prevent the accumulation of carbon and give the highest degree of heat under all conditions.

A further object is to provide a self-generating burner for effecting a rapid and complete conversion of the fuel oil into hot vapors, and to provide means for thoroughly mixing air with such vapors for the purpose of producing a highly inflammable mixture.

Another object is the provision of an oil burner which can be produced at relatively small cost, which is not likely to get out of order, one in which access can be readily gained to all parts for the purpose of cleaning and making repairs, and one which will be thoroughly efficient and practical in operation.

In order that the invention may be fully understood, reference will now be had to the accompanying drawing, in which:

Fig. 1 is a vertical central section of the burner on line II of Fig. 2. Y

Fig. 2 is a plan view of the burner.

Fig. is a detail perspective view of a flame spreader employed in carrying out the invention.

Referring now in detail to the various parts, 2 designates a vertically-disposed generator provided at its lower end with a laterally extending leg 4. The generator 2 is divided by a vertical partition 6 into a chamber 8 and a duct 10, which latter communicates at its upper end with the chamber 8 through a port 12 and has its lower portion extending into the leg 4 which is provided near its extreme end with a vertically-extending discharge nozzle 14 provided at its upper end with an orifice 16.

18 designates a horizontally-disposed flame nonperforate spreader spaced above the discharge nozzle 14. Said flame spreader 18 consists of a horizontally-disposed plate 20, a V-shaped compartment 22 open at its rear and undersides, and a reinforcing rib 24 formed integral with the plate 20 and the forward portion of the compartment 22. The compartment 22 snugly fits against the upper forward portion of the generator 2, which forward portion is V-shaped in plan view as indicated at 26 to snugly fit within the V-shaped compartment 22 and prevent the flame spreader 18 from rotating on the lug 28 formed integral with the upper end of the generator 2, for the purpose of projecting through a hole 30 in the top of the compartment 22 to hold the flame spreader 18 on the generator.

, 34 designates a feed pipe for conducting fuel oil from a supply tank, not shown, to the lower portion of the generator 2, to which said pipe is 'removably connected through the intermediacy of a bushing 36. The feed pipe '34 is equipped with a needle valve 38 for controlling the flow of oil to the generator chamber 8. Said feed pipe 34 is also equipped with a clean-out pipe 40 provided with a three-way valve 42.

44 designates a pan provided with upwardly-extending bosses 46 upon which lugs 48 integral with the generator 2 rest and are secured by bolts 50. The pan 44 is also provided with an upwardly-extending boss 52 through which the feed pipe 34 extends, said boss 52 being provided for the purpose of preventing the oil in the pan 44 from escaping around the hole 54 through which the feed pipe 34 extends. The boss 52 has a recess 55 to receive the bushing 36.

56 designates a pedestal adapted to rest upon the bottom of the fire pot of a furnace or the tire box of a'stove. As disclosed by Fig. 1, the bolts 50 extend through the lugs 48 of the generator 2, the bosses 46 of the pan 44, and the top of the pedestal 56 and thus removably secure the foregoing parts in assembled position.

In practice the needle valve 38 is initially opened to allow the fuel oil to flow through the chamber 8, the duct 10, and overflow into the pan 44 from the nozzle 14. unt l the the oil in the pan 44. is ignited.

oil attainsthe-desired depth within said pan 44. The needle valve 38 is then closed". and

The resultant flame impinges against the entire generator 2 and heats the same until the fuel in the upper portion of the chamber 8 and the duct 6 is converted into vapor, which on discharging from the nozzle 14 becomes ignited, the resultant flame impinging against the spreader 18 and around the upper portion of the generator 2, thus continuing the process of converting the oil in the upper portion of the chamber 8 into a; vapor. The needle valve 38 is then opened and. left in such position, so that oil may flow to the chamber 8 to take the place of that converted into vapor which latter in a relatively short time attains sufiicient' pressure to prevent the oil from rising to the port12; Such pressure also causes the Va 301* to pass; out through the port 12 to the duct 10 and escape from the nozzle 14: at high velocity, so that it will become thoroughly intermingled with air and be thereby converted into a highly inflammable mixture, which on becoming ignitedproduces a flame of high temperature which impinges against the generator 18 and the upper portion of the spreader-2, as above stated.

As v the conversion of the oil into vapor takes place in the upper portion of the chamber 8. all of the impurities settle to the lower portion of said chamber 8 from which they may be drawn off from time to time when. the burner is not in operation by opening the valve 4:2. By having the impurities settle within the chamber 8 there is no danger of the nozzle 14 and the duct 1Ov beco1ning clogged. by such impurities.

From the. foregoing description it will be understood" that We have provided an oil burner embodying the advantages above pointed out, and while we have shown and described the preferred construction, combination and arrangement of parts, we reserve the right to make such changes as properly fall Within the spirit and scope of the claims.

Having thus described our invention, what we claim and desire to secure by Letters Patent, is:

1. An. oil burner consisting of a generator having a vertical partition dividing said generator into a chamber and a duct which latter communicates with the upper portion of said chamber, a discharge nozzle communicating with the lower portion of the duct, and a nonperforate flame spreader supported by the generator and consisting of a relatively flat plate projecting over said nozzle.

2. An oil burner consisting of a generator having a vertical partition dividing said generator into a. chamber and a duct which latter communicates with the upper portion of said chamber, a discharge nozzle com.- municating with the lower portion of the duct, a flame spreader supported by the generator and projecting over said nozzle, a pipe communicating with the lower portion of the chamber to perform the dual function of supplying the same with fuel oil and draining off the residuent resulting from vaporization of said oil, a. valve toisaid pipe to control the flow of oil to the chamber, and a valve to said pipe through which the residuent may be drawn off.

3. An oilv burner consisting of a generator having a vertical partition. dividing said generator into a chamber and a duct which latter communicates With the upper portion of said: chamber, a feed pipe for conducting fuel oil to Saidchamber, a feed pan in which the generator is secured, a discharge nozzle communicating With the lower portion of' the duct, a flame spreader supported by the generator and projecting over said nozzle, and a pedestal. upon which said pan is mounted.

4. An oil burner consisting of a generator having a vertical. partition: dividing said generator into a chamber and a duct which latter communicates with the upper portion of said chamber, a discharge nozzle co1nmunicating with the lower portion of the duct, and a flame spreader having a V- sh aped compartment to fit over the complemental portion of the generator and a hori' zontally-disposed plate to project over said discharge nozzle.

In testimony whereof We aflix our signatures, in. the presence of two witnesses.

CHARLES M. KEITH, MAX M. PUMPHREY. Witnesses L. J. FISCHER, F. C. FISCHER.

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