US1536694A - Oil burner - Google Patents

Description

`May 5, 1925. 1,536,694

. G. H. SIBLEY OIL BURNER Filed Deo. 17. 1924 IN VEN TOR.

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'Patented May 5,1925.

,orari-:D 'STATES 1,536,694 Parral'` OFFICE.

GEORGE H. SIBLEY, OF HARTFORD, CONNECTICUT, ASSIGNOB OF ONE-HALF TO CHARLES F. CHANDLER, OF STAFFORD SPRINGS, CONNECTICUT, AND ONIil-HALIE TO ELIZABETH S. SIBLEY, O F HARTFORD, CONNECTICUT.

on. BURNER.

Application tiled December 17, 1924. Serial No. 756,457.

To all whom t may concern.

Be it known that I, GEORGE H. SIBLEY, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented new and useful Improvements in Oil Burners, of which the following is a specification.

This invention relates to improvements in oil burners,.and particularlyof the type in which the oil is converted into a vapor and mixed with the correct proportion of air before it is burned. Heretofore it has been a common practice to burn the oil after first atomizing it. 'llhis practice is somewhat objectionable for the reason that more or less noise is produced in the heating apparatus when the oil is burned especially when used in the heating apparatus of a dwelling.-

@il burners' have, however, been reduced for burning lthe oil after it has rst been vaporized. rll'he burners with which l am familiar, those that first vaporizc the fuel oil, have been found to carbonize to a large extent, whereby the apparatus, after having been in use for some time, is practically inoperative.

An object of my invention therefore .is to so construct and arrange the various parts of the apparatus that the objectionable feature of' carbonization is entirely eliminated.

A further object is to so construct and arrange the elements of the apparatus that combustion is self-sustaining after being started. I

A. further object is to construct a part of the apparatus in order to avoid the possibility of the oil escaping should the flame for any reason become extinguished.

rtfurther object is to provide a single device for controlling the flow of the Vapor after the device is once started.

"Further objects and nature will appear in 'the body of the specifications and will be particularly pointed out in the appended claims.

Referring to the drawings:

Fig. 1 is a perspective View of the entire apparatus showing the burner member, the pre-heating or vaporizing part, the oil shut off feature, the needle valve, and illuminating gas starting construction.

Fig. 2 shows a sectional View of Fig. 1 on the broken line 2 2.,

Fig. 3 is a detail View of the shut off valve 1n the main oil supply pipe.

Figt 4 is a detail sectional view showing the mixin chamber, the burner proper, and the branc for carrying a part of the combustible vapor to the oil pre-heating or vaporlzing memberand the air inlet member.

Fig. 5 1s a detail sectional View showing a portioncf the vaporizing pipe, with a link chain therein.

Referring to the drawings in detail:

1 designates the burner proper, having the inserted perforated plates 2 mounted in the u per plate part, the perfor-ations being indlcated by the reference numeral 3; 4 is the main mixing chamber for the vaporized oil and air which enters this chamber through the air inlet member 5, a section of which 1s shown in Fig. 2. 6 designates a needle valvewhich controls the flow of the hot vaporized oil into the mixing chamber t. 7 is a pipe which extends from the needle valye 6 to the pipe 8 that is connected to the mam oil supply tank, (not shown). Located below the o1l vaporlzmg pipe 7 is an inclosed box-like member 9, a transverse section of 'which is shown in Fig. 2. This member is formed substantiall V- or Wedge shaped with the perforated burner plates '10 secured 1n openings in its upper plate 11. The burner plates 10 are directly below the two portions of the pipe 7. Connecting the main Vapor mixing pipe 4: and the right hand end of the member 9 is a pipe 12. This pipe as shown, connects with the pipe t at an acute angle, as clearly illustrated in Fig. 4 at 13, whereby a part of the heated mixture of vaporized 011 and air is carried or drawn back into the burner member 9 where it escapes and is ignited at the perforated burner plates 10, the flames from which serve to thoroughl vaporize the oil in the pipe 7 as it flows tierethrough before it enters the mixingpipe 4. For the pur ose of aiding or increasing the process o vaporization the pipe 7 is completely filled with a linked chain indicated at 14. 15 designates a pipe which is located between the two branches of the U-shaped pipe 7. This pipe is formed with the perforations 16. It 1s designed to be connected to the source of city gas supply main by means of the pipe 17. 18 designates an air valve for controlling the supply of air which flows into the pre-heating pipe 15 along with the gas for the purpose of producing perfect combustion at the openings 16. 19 designates a short piece of pipe which is attached to the gas burner pipe 15. This piece of pipe is for the purpose of fui'- nishing a pilot light for igniting the combustible mixture of`vaporized oil and air as it issues from the perforations 3 in the burner plates 2. The gas burner pipe 15 is for the purpose of supplying heat to initially heat and thoroughly vaporize the oil iii the tivo branches of the pipe 7 when the apparatus is first started, it being understood that the needle valve 6 is first opened to permit the vaporized oil to flow through the pipe 7. After the oil in the pipe 7 is thoroughly vaporized and' the burner 1 is in operation, the supply of city gas is shut ofl' in the pipe 17 by means of the valve 17. The combustion is now self-sustaining, that is to say, a part of the hot mixture of vaporized oil and air Will non7 flow through the branch pipe 12 into the burner member 9, Where it escapes through the openings in the perforated plates 10 Where it is ignited, the flames from which serve to thoroughly vaporize the oil as it flows through the pipe 7 and into the mixing chamber past the needle valve 6.

For the purpose of preventing the apparatus from being flooded with oil should theJ flame at the burner forl any reason become extinguished a Valve operated shut off in the main supply pipe 8 is provided. 19 designates a valve in the pipe 8. 20 is an arm which is connected to the valve. 21

is a bucket which is hung in the. hook 22 of the arm.- Attached to the arm is a 'coiled spring 23 secured at one end and to a fixed part of'the apparatus at its other end by a bracket arm 24. This spring normally maintains the arm and bucket in an elevated position. In the event the flame at the burner should be extinguishedand the unvaporized oil flow past the needle valve 6 it will pass through the opening 25 in the pipe 4 and down the trough 26 into the bucket 21. When a sufficient Weight has been collected, say tivo ounces, it Will stretch the spring 23 causing the valve 19 to be closed in the main oil feed pipe 8 thus sluitting off the supply indicated by the dotted line position in Figures 2 and 3.

The gas flame pipe 15 is clamped to the upright piece 27 by means of the nuts 28 and 29. The pipe 7 is retained in placeJ on the member 9 by means of the notched blocks 3() and 31. The burner 1 and member 9 are supported on the base piece 32 by means of the vertical rods 33 and 34.

It is to be understood that the apparatus is mounted and supported Within a suitable heating apparatus as in the fire box (not shown The outer casing may be indicated by the part 35. j v

What I cla-im is:

1. An oil burner comprising, in combination, a burner proper, a mixing chamber connected to the burner for supplying a combustible.mixture of vaporized oil and air, means for vaporizing the oil which comprises an auxiliary burner, that receives a portion of the combustible mixture from the mixing chamber, a by-pass for connecting the mixing chamber and the auxiliary burner, a U-shaped pipe located over the auxiliary burner and having one end connected to a source of oil supply and its other or discharge end connected to the mix-I ing chamber, whereby the oil in the U-shaped pipe is vaporized as it passes therethrough and is discharged into the mixing chamber, means for supplying air to the mixin chamber, and said by-pass being arranged at an acute angle to the axis of the mixing chamber for the purpose of diverting a part of the combustible mixture into the auxiliary burner.

2. An oil burner comprising in combination, with a main burner proper, an auxiliary burner for pre-heating and Vaporizing tlieloil, a mixing chamber connected to the burner, a U-shaped pipe connected to a source of oil supply and extending over the auxiliary burner, a perforated pipe located between limbs of the U-shaped pipe and connected to a gas supply for preheating the U-shaped pipe before the auxiliary burner is ignited, a pipe connecting the mixing chamber at an angle less than a right ang-le for cansino a part of the contents of the mixing cham r to be diverted into the auxiliary lburner aft-er the perforated pipe has initially vaporized the oil in the U- shaped pipe and discharged it into the niixing chamber and the flame on the perforated pipe is extinguished, a valve for controlling the flow of vaporized oil into the mixing chamber, means for supplying air to the mixing chamber, and a pilot device on the perforated pipe for igniting the main burner.

3. An oil burner comprising in combination a main burner, an auxiliary burner located at one side of the main buiiier and below the plane of the same, a mixing chamber connected to the main burner for supplying a combustible mixture of vaporized oil an-d air, a vaporizing ipe located above the auxiliary burner and) having one end connected to a source of oil supply and its other end connected to the mixing chamber, and a connecting pipe between the mixing chamber and the auxiliary burner for supplying combustible mixture to the auxiliary burner, said pipe branching ofl'- from the mixing chamber intermediate the ends of the latter and disposed at an acute angle thereto and extendingv downwardly to the auxiliary burner whereby a portion of the combustible mixture in the mixing chamber is diverted down into the auxiliary burner.

4. An oil burner comprising imcombination a base supporting means, a vertical standard at one end of the base, a main burner supported by the vertical standard, a rear standard extending upwardly rom the base, an auxiliary burner supported by said rear standard at one side of the main burner and below the level of the same, a mixing chamber communicating with the main burner, a pipe connection between the auxiliary burner andthe mixing chamber, said ppipe connection branching olf at an acute angle from the mixing chamber intermediate the ends of the latter and extending downwardly to the auxiliary burner, a vaporizer disposed above the auxiliary burner communicating at one end with the mixing chamber, a source of oil supply communicating at the other end of` the vaporizer and means for controlling thel supply of vapor to the mixing chamber.

GEORGE H. SIBLEY.

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