US2587078A

US2587078A - Vaporizing type oil burner apparatus

Info

Publication number: US2587078A
Application number: US72179A
Authority: US
Inventors: Wollner Paul
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-01-22
Filing date: 1949-01-22
Publication date: 1952-02-26
Anticipated expiration: 1969-02-26

Description

Feb. 26, 1952 WOLLNER 2,587,078

VAPORIZING TYPE OIL BURNER APPARATUS Filed Jan. 22, 1949 2 S l-lEETS-SHEET 1 INVENTOR. fiw/L fluA EK BY /Md%4 Feb. 26, 1952 P. WOLLNER 2,587,078

VAPORIZING TYPE OIL BURNER APPARATUS Filed Jan. 22, 1949 2 SHEETSSHEET 2 [fl //1 I III/II, /I

Patented Feb. 26, 1952 UNITED STATES PATENT OFFICE VAPORIZING TYPE OIL BURNER APPARATUS Paul Wollner, Wcehawken, N. J.

Application January 22, 1949, Serial No. 72.179

1 Claim. 1

This invention relates to a vaporizing type oil burner apparatus which is constructed and arranged to generate vaporized fuel to permit the full flow required to the main burner and to discontinue the flow thereof while continuing to generate the full supply of vaporized fuel.

The invention has in view to provide a vaporizing type burner apparatus having a pilot burner arranged to project a flame axially of a vaporizing coil for generating vapor in substantially constant pressure and volume together with means for regulating the flow thereof to the main burner.

Another object of the invention is to provide a burner apparatus of said character in which the pilot burner is arranged to operate at all times at maximum efiiciency so as to avoid overheating or underheating of the coil to thereby prevent the deposit of carbon soot on the coil.

A further object of the invention is to provide a vaporizing type burner apparatus in which the main burner may be arranged in either fully on or oii condition or the same may be regulated to vary the size of the flame.

A further object of the invention is to provide an apparatus of said character including a condensing coil having an admission orifice equal in area to the orifice of the main burner for receiving and condensing the vapor and returning the same to a return tank when the main burner is turned off.

With the foregoing and other objects in view, reference is now made to the following specification and accompanying drawings in which the preferred embodiments of the invention are illustrated.

I the drawings:

Fig. 1 is a schematic view showing parts in section of a vaporizing type burner apparatus constructed in accordance with the invention.

Fig. 2 is a view in elevation of a burner apparatus constructed in accordance with the invention and shown with the vaporizing coil and the main burner in position in a bituminous material melting apparatus.

Figure 3 is a sectional view of the fitting l8.

Fig. 4 is a sectional view of a three-way valve which is set to direct the flow of the vaporized fuel to the main burner and to shut off the flow to the condenser.

Fig. 5 is a similar view of the three-way valve which is set to direct a portion of the flow to the main burner and the remainder of the fiow to the condenser.

Referring to the drawings by characters of reference and more particularly to the form of the invention shown in Fig. 1 of the drawings, the

2 burner apparatus is of the type adapted to provide a torch-like flame but it is to be understood that the main burner may be of any desired character to provide the required type of flame.

As illustrated, the apparatus includes a system indicated generally by the reference character ID for generating hydrocarbon vapor under pressure and at substantially constant volume. The system also includes a fuel supply tank l2 adapted to contain hydrocarbon oil and the like which is under pressure therein to force the oil through the pipe line l3 to a vaporizing coil l4 consisting of a plurality of adjacent convolutions l5 arranged within a cylindrical shell IS.

The pipe line I3 extends through an opening in the shell I6 adjacent the outer end thereof and is connected with the outermost convolution of the coil M with the inner end of the coil connected by a pipe line H with a fitting I8 having a pilot burner nozzle l9 located at the rear of the shell I6 and in axial alignment with the coil 14. The shell [6 is provided with an open-ended pipe '20 which is afiixed to the rear wall 2| thereof in forwardly spaced relation from the pilot nozzle IS.

The system also includes a standard three-wa valve 23. The three-way valve 23 is connected with the fitting ill by a short length of pipe 24 and is formed with oppositely disposed

outlets

25 and 26, the former being connected by a pipe line 21 with the main burner nozzle 28 and the outlet 26 being connected by a pipe line 29 with a condenser 30. The condenser 30 is connected by a pipe line 3| with a return tank 32 and with a vapor trap 33 connected in said pipe line adjacent the tank 32.

The main burner nozzle 28 is attached to a conical shaped burner shell 34 by means of arms 35 which mount the burner nozzle 28 in axial alignment and at the rear of an open-ended tube 36 projecting forwardly from the rear wall 31 of said shell and with said shell arranged in parallel relation with the cylindrical shell IS with the open end 38 of said conical shell 34 located slightly forwardly of the open end 39 of the cylindrical shell IS.

The pipe line I3 is provided with a strainer type fuel control valve 40 for regulating the feeding of the fuel oil from the supply tank l2 to the vaporizing 0011 I4, while the tank 12 is provided with a fuel supply opening and means (not shown) for creating a pressure within the tank. A pipe line 4| may be arranged between the return tank 32 and the fuel supply tank l2 for emptying the return tank 32 into the supply tank.

In use and operation hydrocarbon fuel oil is g forced by the pressure within the tank I 2 through the pipe line It to the forward end of the coil M. the quantity of flow being regulated by the valve 40. The fuel is converted into vapor within thecoil It by the heat of the flame jet issuing from the pilot nozzle IS. The vaporized fuel issues from the coil ll at substantially constant pressure and volume which flows into the fitting l8 to supply the pilot nozzle I8 and from the fitting l8 the vaporized fuel flows through the three-way valve 23 to supply the main burner nozzle 28 with the required flow thereof for the maximum length of the flame let. The threeway valve 23 is adapted to be regulated to direct the flow of the vaporized fuel to the main burner and to shut off the flow to the condenser 30 as shown in Fig. 4. The valve 23 may be arranged to direct a portion of the flow through the pipe line 21 to vary the length of flame issuing from the main jet 28 and to direct the remainder of the fiow through the pipe line 28 to the condenser 80 as shown in Fig. 5. -The cross-sectional area of the inlet 43 of the condenser 30 is equal to the cross-sectional area of the main burner nozzle 28 whereby either the main burner 28 or the condenser 30 will take the full flow of the vaporized fuel issuing from the fitting l8 and the cross-sectional area of the pilot nozzle l9 being constant the pilot burner operates at its maximum efliciency and will not deposit carbon soot on the coils nor overheat nor underheat the same.

In Fig. 2 of the drawings the burner apparatus is illustrated in position in a bituminous material melting apparatus. The melting apparatus includes a container A comprising an insulated bottom wall B, side walls C, and a top wall D having a hinged cover E. Supported by the top wall D is a rectangular shaped receptacle or well F with a fiue 49 extending forwardly therefrom adjacent the bottom of the container. The burner apparatus is arranged with a vaporizing coil 50 disposed within a cylindrical shell and which coil and shell are arranged in vertical relation within the receptacle F. The outlet 52 of the shell 5| and the outlet 53 of the shell 54 of the main burner nozzle 55 are P sitioned at the inner end of the flue 49 with the main burner nozzle 55 disposed for projecting a flame longitudinally of said flue.

The forward end of the coil 50 is connected with a fuel supply tank 56 by means of a pipe line 51 having a strainer type supply valve 58 interposed in said pipe line. The vaporizing coil 50 is also connected with a fitting 59 having a pilot nozzle 50 disposed to project a flame axial- 1y of the coil 50 and which fitting is connected with a standard three-way valve 6| connected by a pipe line 62 with the main burner nozzle 55. The three-way valve BI is also connected by a pipe line 63 with a condenser BI and by a pipe line 86 with a return tank 51, the construction of the burner apparatus being substantially similar to that shown in the previous form of the invention.

There is thus provided a vaporizing burner apparatus of the torch type in which the generation of vaporized fuel is substantially constant in volume and pressure when the main burner is in off or on condition and the quantity of vaporized fuel generated is adequate to supply the maximum length of flame of the main burner and in which the setting of the regulating valve and the area of the orifice of the main burner and the inlet orifice to the condenser determines the dew of vaporized fuel to the main burner and to the condenser.

In this form of the invention also the crosssectional area of the inlet 68 of the condenser 64 is equal to the cross-sectional area of the main burner 55 whereby either the main burner 55 or the condenser 54 will take the full flow of the vaporized fuel issuing from the fitting 58 through the valve 5| so that the cross-sectional area of the pilot nozzle 60 remains constant. The flow of the vaporized fuel through the pilot burner 60 being constant the same operates at its maximum efiiciency and will not deposit carbon soot on the coils 50, nor overheat nor underheat the same.

What is claimed is:

In a vaporizing type oil burner apparatus, a hydrocarbon vapor fuel generator including a coil for conducting liquid fuel and a burner having an orifice of constant area for projecting a flame axially of said coil for vaporizing the fuel therein, means to conduct fuel vapor from said coil to said burner orifice, a tank for containing fuel under pressure, means for conducting the fuel from the tank to the coil and for regulating the quantity of flow thereof whereby vaporized fuel issuing from the orifice of said burner is of substantiaily constant pressure to thereby produce a flame of constant size for obtaining vaporized fuel of constant volume and pressure, a main burner having an orifice of constant area, a condenser having an inlet of constant area, a vapor fuel supply line leading from said vapor conducting means with branches to said main burner and condenser, and a valve interposed in said fuel supply line at the juncture of the branches therewith for proportioning the flow of the vaporized fuel from said vapor conducting means to said main burner and condenser.

PAUL WOLLNER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 745,799 Donnelly Dec. 1, 1903 994,135 Eckels June 6, 1911 1,160,371 Brown Nov. 16, 1915 2,004,275 Faccini et al June 11, 1935 2,094,908 Thrall Oct. 5, 1937 FOREIGN PATENTS Number Country Date 336,654 Great Britain Oct. 1'7, 1930