US1874346A - Fuel burner - Google Patents

Description

Aug. 30, 1932. c. H. PAscHKE FUEL BURNER Original Filed May 127, 1929 ATTORNEY Patented Aug. 30, 1932 y uNrlE-D STATI-is PATENT iol-*FICE 1 oHAnLEs HERMAN rasonxn or BUFFALO, NEW YoRx,Ass1GNon 'ro :aannemen A.

PascHxE, or swEE'rwA'rEn, IDAHO Y 'FUEL' Brianna Y Application mea my 27, iazasenai No. 366,410; Renewed march 11,1932.

This invention Vrelates to improvements in gaseous fuelburners generally, and more particularly to a type of the same adapted for heating purposes in furnaces, the like. Y Y

An object of theinvention is to provide a burner of the class set forth which will Vbe 4comparatively simple,V and inexpensive to manufacture, extremely. durable, efficient and economical in use, and convenient and easy to install and operate. c i

Another object of the invention isto provide a burner as hereinbefore characterized which employs certain features of construction and adjustmentwhi'ch permits of a maximum generation of heat withv a minimum consumption of gaseous fuel and allows for a comparatively wide range ofproportionment of the gaseous fuel and air and consequently of regulatio'nof the amount of heat to be generated. i Av further object of the invention is to provide a novel form of mixing device which functions to cause a most thorough commingling of the gaseous fuel and `air throughout the range of proportionment and regulation of the same as aforesaid. f With the foregoing and other equally important objects and advantages in view, the invention residesinthe certain new and useful combination, construction and arrangement of parts as will be hereinafter more fully described, set forth in the appended claims' and illustrated in the accompanying drawing, in'which: 1 Y

Figure 1 1s a sideelevatlon fof the burner Y in assembly'with a main fuell mixingdevice;

\ Figure l2 isa perspective viewof the parts ofthe burner per se in position for assembly;

after .the assembly Figure 8 is a vertical sectionthrough-the burner parts, as illustrated in Figure 2, but thereof has been made; and` Y Y, Figure 4 is avertical transverse section through a form of floor radiator or the like with the burner housed within the casing thereof. Y

c Referring to the drawing, wherein like characters of reference designate corresponding parts throughout the several views thereradiators and Y Thesescrews 19 of, the embodiment 'of lthe invention, as illustrat-ed therein by wav of example, comprises va member or plate 10, whichmay be other than,V the circular 4or convex form shown desired, but in any case, is Ina-de up of a fire i, reslstant material and has a tubular portion 11 depending centrally from the lower side thereof, and anopening 12 formed through thesame in the plane of the verticalV axis of the latter.,

11 is out away at its upper end to either side of a pair of diametrically arranged attaching ,portions 13, which are to be brazed or welded to the member or plate 10, as at 14. 'When the parts 10 and 11are in one piece, the latter part 11 will be similarly cut away to either side of theintegral portion 13, and, in either case, openings 12a so formed at these points will act to spread the flames radially outward of the under side of the member or plate 10. The portion as at 15, at the opposite sides 4of the same and at a slightdistance from its lower end, to provide circumferentially elongated air intake lports arranged for cooperation with a pair of similarly formedports 16, the latter being provided in a detachable extension ornipple 17 over which the portion 11 is slidably engaged, which extension or nipple rises from the upturned end of an L coupling 18.l

As shown,'the burnermember or plate l() and the tubular portion 11 are to be adjusted vertically of the extension ornipple 17 for the regulation of the size of the opening of a pair ofscrews 19 threaded downwardly through suitable openings formed in the member orl plate -10 for their reception.

have their lower end portions engaged in apertured lugs 20 pro]ect ing inwardly from the attachingportions 15, of the tubular portion .11 and their extreme lower ends bearing against the upper end edge ofthe tubular extension ornipple 17; Thus, when the screws `19 areturned 11is further cut away, 7

in one direction, the member or plate 10 and the tubular portion 11 will be lowered, and contrariwise raised, when thescrews 19 are turned in the reverse direction. When fully lowered, theportions 15 and 16 will be out of registry, and the intake of air therethrough from the surrounding atmosphere prevented.

The horizontally directed end of theL coupling 18 is connected by apipe section 21 to one side of a conventional form of air proportioning device or mixer 22, which has its other side connected by a gaseous fuel supply pipe 23. Theproportioning effect of this device or mixer 22 is augmented by the additional air supply to be admitted to the fuel supply .to the burner, when theports 15 and l16 are open by the vertical vadjustment of the burner part l1 relatively to theeztension ornipple 17. i

To assure of a most thorough commingling of the air and gas, which is necessary for proper and efficient combustion at the burner, abaille 24 is positioned in the extension ornipple 17, and the same is preferably made up from a length of coiled spring wire, the coil being preferably of "tapered form and arranged with its larger end uppermost and of a diameter to snugly fit the bore thereof in a manner to sustain the baille in centered position. The lower-most of the smallerconvolutions of thebaille 24 may be formed to merge into a single lower andlarger convolution 25, of equal diameter to that of the largest convolution at the upper end of the baille, to give additional support-to the device.

Thebaille 24 is preferably of a length only slightly less than that of the extension ornipple 17 within which it is housed, and thus presents a number of convolutions of progressively increasing diameter upwardly thereof, in a direct-ion of flow of fuel therethrough so that the fuel passing from the mixer 22 strikes these convolutions in a manner to be thoroughly remixed before reaching the burner. Theports 16, at the opposite sides of the extension ornipple 17, are positioned therein to discharge the additional air supply, admitted through the same directly into the path of the initially formed fuel supply and in a plane medially of thebaille 24, so that it in turn is thoroughly admiXed in the remaining distance of upward travel of the fuel through the baille or eX- tension or nipple to the burner.

In use, the burner will be'ignited at theopening 12, with the tubular portion 11 in its lowermost position to close theports 15 and 16 thus the richer fuel mixed directly from the mixer 22 will be employed at the start of the operation of the burner. Now, as the burner heats up, thescrew 19 will be adjusted to raise the burner 10 and tubular portion 1l and thereby open thelports 15 air inlets.

and 16, when the initial fuel supply will be diluted with the additional air supply admitted therethrough. A control valve (not shown) will, of course, be provided to regulate the gaseous fuel supply admitted through the supply pipe 23, so that with the burner in full operation the amount of the gas may be reduced to a minimum correspondingly with the increased air dilution of the initialfuel'mixer at theports 15 and 16.

As an instance of the use of the burner, as thus constructed and arranged, and in addition to its employment for more general heating purposes, the same may be housed within an enclosed structure, somewhat after the manner as shown in Figure 4. This structure may be employed as a radiator to be installed in the wall or floor of a room, and it consists of acasing 26, preferably of metal and of rectangular form. The upper side of thecasing 26 is preferably open and the bottom wall thereof provided with a pair of parallel slottedopenings 27, the latter forming These openings orslots 27 are formed, in this instance, by the striking upwardly from the bottom wall of a pair ofparallel flange portions 28, and supported on the upper edges of theseflanges 28 is asecond bottom wall 29, so that an air space is formed below the same. The inner surface of the oppo site end and side walls of thecasing 26 and the upper side of theinner bottom wall 29, are lined with a refractory material, such as lire brick or the like 30, and a central air inlet opening 31 is provided in thewall 29 and the lining 30, immediately below the position of the mixing device 22 to which the burner 10 is connected.

The upper side of thecasing 26 is provided with aremovable cover frame 32 which will preferably have a transparent wall portion 33 mounted within the opening of the frame, whereby the operation of the burner may be observed. To evacuate fuel gases from the interior of thecasing 26 which gases may accumulate therein during the operation of the burner, suitable outlets 34 will be provided in one of the end walls just below the top edge therein and these outlets will be eX- teriorly piped to a common discharge pipe 35 leading to the atmosphere.

In the use of this type of radiator, thecasing 26 will be set in the floor or wall of a room7 preferably flush therewith, with suitable air and gaseous fuel connections leading to the same for the proper operation of the burner, and the casing will preferably be filled with a refractory material which acts to retain the heat, and when fully heated, permits of the reducing of the fuel consumption at the burner to a minimum. The refractory material to be so employed will preferably be in the form of broken up parts of hard burned bricks or the like. By employing broken brick within the casing and packing it about and over the burner, the same will tend to absorb moisture from the atmosphere through condensation, so that the heat from the burner will be intensified thereby with a minimum of fuel consumption.

As has been hereinbefore suggested, the burner may be installed in any type of standard or special form of a heating furnace, stoves or the like, which ordinarily employ coal or other solid fuels for the heatln thereof, in which case the particular form o herein described for housing the same will be eliminated. The burner may also be employed in conjunction with fireplace heaters or logs. A

Without further description, it is thought that the features and advantages of the invention will be readily apparent to those skilled in the art, and it will of course be understood that changes in the form, proportion and minor details of construction may resorted to, Without departing from the spirit of the invention or its scope as claimed.

I claim:

A gas burner comprising a body, a hollow extension depending from the lower side of said body, a hollow member adapted to be telescopically engaged by said extension and to be connected to a fuel supply line, said extension and said member having ports in the same opening to the atmosphere when in registry, lugs within said extension, and screw means passed downwardly through said bod and said lugs and having the lower ends thereof bearing against the upper end of said hollow member for adjusting said extension relative to said member whereby to move the said ports into and out of reglstry for controlling an air supply to be admitted therefrom to the said extension for the dilution of the fuel passing therethrough toV the burner body.

CHARLES HERMAN PASCHKE.

casing

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