US1883615A

US1883615A - Gas burner

Info

Publication number: US1883615A
Application number: US297459A
Authority: US
Inventors: Claude M Dibble
Original assignee: Moore Brothers Co
Current assignee: Moore Brothers Co
Priority date: 1928-08-04
Filing date: 1928-08-04
Publication date: 1932-10-18
Anticipated expiration: 1949-10-18

Description

Oc. 18, 1932. c. M. DIBBLE GAS BURNER Filed Aug. 4, 1928 Patented Oct. 18, 1932 y UNITED vSTATES PATENT OFFICE CLAUDE M. DIBBLE, F JOIIET, ILLINOIS, ASSIGNOR T0 MOORE BROTHERS COMPANY,

0F JOLIET, ILLINOIS, ACORPOBATION OF ILLINOIS GAS BURNER Application led'Aug'ust 4, 1923. Serial No. 297,459.

This invention relates to gaseous fuel burners and has for its general object to provide a burner of compact construction in which efficiency in operation is promoted and the heating capacity is enlarged in respect of the area of flame propagation.'

Numerous other objectsk and advanta es of the invention will be apparent as it is etter understood from the following description, which, taken in connection with the accompanying drawin discloses a preferred embodiment thereo ln the drawing:

Figure 1 is a plan view of a gaseous fuel burner of one type constructed in accordance withthe invention;

' Fig. 2 is a vertical sectional elevation on an enlarged scale of the inlet end of 'the burner;

Fig. 3 is a horizon-tal section taken on the line 3-3 of Fig. 2; l

Fig. 4`is a transversevertical section taken on the line 4-4 of Fig. 3; 4

/ Fig. -5 is another transverse vertical section `taken on the line 5 5 of Fig. 3, and

Fig. 6 is a transverse vertical section taken zontally elongated body 12 o generally rectangular shape in cross section. The inlet end 13 of the burner body is"frmed with a v head 14. the outer surface'15 of which may be cylindrical in shape and provided with' clamping projections 16 for the pur ose of securing the burner body to thewall o va suitable heating chamber, as for exam le is disclosed in my companion applicatlon Serial No. 297,458 for Letters Patent of the United States'for stove constructions, filed of even dateherewith, whichhas resulted in Patent No..1,822,274, issued September 8, 1931.

The head- 14-as shown, is concentrically positioned on the inlet end 13 of the burner body and the rear part of the' head merges into a cup-shaped portion 17, the walls of which converge into the constricted part 18 of a Venturi tube 19. The Venturi tube 19 islocated concentricallyv in respect of the longitudinal axis' ofthe burner. body and constriction 25, inthe direction of theiiow, .and from this constriction 25,- diverges because ,of the conical bore v26 toward the VenvIturi outlet 2l.

The illustrative burner `may be o erated on the Bunsen burner principle, and or this purpose, the outer face of the head 14 is provided with a closure wall 27 provided with openings 28 for the ingress of air. The closure wall 27 is provided witha central opening 29 to receive the pipe 30 which discharges the gaseous fuel into the cup-shaped inlet portion 24 of the Venturi tube. Mounted on the outer face of the closure wall 27 is adisc 31 also provided with a central opening 32 for the gas pipe 30,' .and with an inwardly projecting flange 33 which surrounds the'gas pipe, as shown in Fig. 2. The disc 31 is provided with air inlets 34, companion to inlets 28 of the closure wail 27, and, by rotating the disc relatively to the closure plate, the registration of the companion inlets 34 and 28 may -be varied to regulate the quantity of air introduced into the Venturi tube along with the gaseous fuel. A nut 35 threaded at 36 on-the gas pipe 30 may be tightened against the outer face 4of the disc 31 to-retain the latter inadjusted position.

The gas pipe 30 may be provided with a valve 37 of an preferred construction for controllin t e supply of gas to the Venturi tube of the urner, and the gaseous fuel may be obtained from any suitable source of supply 24, the gaseous fuel and air pass through the constriction 25 in which its velocity is augmented and continue with gradually decreasing velocity through the diverging conical bore 26 of the tube to the Venturi outlet 21.

-At this outlet 21, the mixture of fuel and air is delivered to the chambers or passageways in the main body portion of the burner. As the gaseous fuel and air pass through the Venturi tube, its velocity is'rst rapidly increased, which of course is accompanied by a decrease in pressure, and next, the velocity of the gases is gradually decreased as the dow progresses toward the outlet 21 of the tube. The decrease in velocity caused by the diverging conical bore 26 is accompanied by agradual rise in pressure of the gases. The e ect produced by the Venturi tube is to promote the mixing of the air and gaseous fuel and to deliver to the burner channels a prop- 'er mixture of fuel and air for ignition and consumption at the nozzles of the burner.

The illustrative burner is constructed to provide an augmented nozzle and consequent ame capacity, yet with conservation of space and proper distribution of the heating effect. The main body 12 of the burner is divided by a longitudinal slot 38 extending parallel to and concentric with the major longitudinal axis of the burner into two legs 39. These le s 39 are respectively located on opposite si es of the major longitudinal axis of the burner and may be connected at the extreme inner end of the burner body by a transverse connecting portion 40. Each leg 39, as shown in Fig. 6,1s substantially rectangular in cross section and is provided with a longitudinal bore 41 for the flow of the combustible mixture. As shown in Fig. 3, the bores or chambers 41 extend froml the outlet 21 of the Venturi tube toward the extreme inner or 'rear end 40 of the burner, on opposite sides of the longitudinal axis thereof.

Projecting into the top wall 42 of each of the gas assages 41 are gas nozzles 43, of any pre erred construction. As shown in Fig. 1, 'the gas nozzles 43 are arranged in parallel rows along the-legs 39 and extend 1n series from the inlets of the receiving passages 41 to the extreme inner end 40 of the burner body. If desired, the nozzles of the two inside rows 44 may be arranged parallel with, but in staggered relationship to, the nozzles of the two outer rows 45. This arrangement promotes conservation of space, consistent with a maximum number of gas nozzles leading from the gas passages 41.

The gas and air pass along the passages 41 and emergethrough the nozzles 42, providing, after ignition, a multitude of 'ets arranged in rows extending the entire istance of the legs 39 of the burner body.

As shown in Figs. 3 and 4, the inside vertical walls 46 of the gas passages 41 converge at the inlets of the passageways 41 so as to cal bore 26 and terminate forwardly of the apex 48 of the forwardly convergingv faces provided by the front terminals of the Walls 46 of the gas passages 41. This construction and arrangement provides a distributing chamber 50 located just beyond the outlet 21 of the Venturi tube but just forwardly of the inlets of the gas passages 41.

v The outer vertical walls 51 and the top and

bottom walls

52 and 53 of the gas passages 41 are continued forwardly of the burner body and extend substantially to the burner head 14. These walls provide gas passages or channels 54 extending parallel with and on opposite sides of the central longitudinal axis of the Venturi tube, from the outlet 21 thereof and forwardly of the burner body to a region adjacent to the head 14 and in advance of the constriction 25 of the venturi. As shown in Figs. 2 and 3,the side portions of the walls of the Venturi tube constitute the inner walls of the channels or passages 54 vand are provided with substantially plane,

vertical faces 55 to provide substantially vertical sides for said channels. As shown in Fig. 5, the other walls of the channels are made similarly plane on their inside faces to provide channels 54 which are substantially rectangular in cross section.

Projecting through the tops 52 of the channels on the opposite sides of the Venturi tube are series 56 of burner nozzles 42. These series 56 ma be arranged in longitudinal rows exten ing, if desired, as conl tinuations of the outer rows 45 of burner noz- -wardly throu h the channels or passageways 41 and is wi ely distributed into individual jets by the rows of

nozzles

44 and 45. Other parts of the fuel streams diverted by the baille, provided b v the hereinbefore described walls 47, pass forwardly through the chan- A nels 54 and are distributed similarly by the rows of nozzles 56 into a large number of flame jets on opposite sides cf the central Venturi tube, and substantially to the head 14 of the burner body.

This construction provides 'adequate mixllO ing facilities for the fuel gas and air and et greatly augments the flame distribution throughout the burner body. In fact, substantially every part of the burner body is provided with jets of flame. The-flame jets 011 the opposite sides of the Venturi tube serve alsoto heat the 'gaseous fuel and air as it passes through the tube and thus assist the mixing operation. At' the same time, this wide distributionI of the flame is attained without increasing substantially the size of the burner body.

It is thought that the invention and many of `its attendant advantages will be understood-from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing `from the spirit and scope of the invention or sacrificing all of its material advantages', the form hereinbefore described being merelyv a preferred embodiment thereof. Moreover, itis not indispensable that all features of the invention be used conjointly, as they may be advantageously employed in various-subcombinations and other combinations.

I claim l. A gaseous fuel burner, comprising an elongated body provided at one end with a Venturi tube extending inwardly of thebody from the gaseous fuel inlet to a distributing chamber located at the outlet of theVenturi bore, said burner body having gas passages extending rearwardly longitudinally from said distributing chamber on opposite sides of the longitudinal central axis of the body to the other end thereof, the inner vertical walls of sald passages converging toward the Venturi outlet and into said distributing chamber into an apexl to provide baing means for dlviding the gas flow from the Venturi outlet, and said burner bodv also having gas passages extending forwardly from said distributing chamber and beyond the constriction of the Venturi bore, on each side of the longitudinal centrall axis of said Venturi tube, and outside rows of fuel nozzles conV nectedwith said rearwardly and forwardly extending gas passages and arranged therealong from the rear to the front ends of the burner body, and inside rows of fuel nozzles connected with said rearwardlyY extending gas passages from the front to the rear ends thereof. A

2. A gaseous fuel burner, comprising` an elongated body provided at one end with a Venturi tube extending inwardly of thebody from a gaseous fuel inlet to a distributing chamber located at the outlet of the Venturi bore, said burner body having gas passages extending rearwardly from said distributing chamber to the other endv ofthe body, the

`inner vvertical walls of -said passa s'being shapedfto provide baling Arx'learis or dividing the gas iiow from the Venturi outlet, and said burner body also having gas passages extending forwardly from said distributing-chamber and beyond the constriction of the Venturi bore, and rows of fuel nozzles connected with both said rearwardly and forwardly extending passages.

3. A gaseous 'fuel burner, comprising, a

burner`body, a Venturi tube extendingin- "to, the front end of the burner body, baflling means located within said distributing chamber fori' directing the gas flow into said passages, and series of fuel burner elements connected with each of said passages. `A

4. A gaseous fuel burner, comprising, va burner body, a Venturi tube extending inwardly of the body from the fuel inlet end thereof, a distributing chamber located at the outlet of said Venturi tube, gas ow passages extending-on opposite sides of the burner body from said vdistributing chamber to the rear end of said body,-and gas iow pas- Sages extending from said distributing chamber forwardly on each side of said Venturi tube to the front end df the burner body.

-5. A gaseous fuel burner, comprising an elonoated burner bodyg'provided with a central Ifuel feeding channel extending inwardly 'from the fuel inlet end ofthe body toward the rear end thereof, and two fuel feeding and distributing channels one arranged along veach side of said fuel feeding channel and seplrated therefrom by a heat conducting wa 6. A gaseous fuel burner, comprising a burner body partitioned internally to provide combustible mixture conducting and distributing passages, the top of said burner consisting of a single continuous bounding wall provided with nozzles communicating with said distributing passages and adapted i vto conduct heat directly to said conducting l passage. A

7. A gaseous fuel burner, comprising an elongated body generally rectangular in cross-section and having an-upper bounding wall arranged substantially in a horizontal 'plane and provided with nozzle outlets, side ing burning nozzles communicating with sald passages at said Venturi inlet whereby to directly heat by conduction the mixture as it passes through said inlet.

9. A gaseous fuel burner, comprising an elongated, generally rectangular, body partitioned internally to provide a central'inlet passage for the combustible mixture, and side distributing passage-Ways separated from said inlet passage by partitions extending from an end of said burner part Way toward the opposite end.

10. A gaseous fuel burner, comprising an elongated, generally rectangular, body partitioned internally to provide a central inlet passage for the combustible mixture, and side distributing passageways separated from said inlet passage by partitlons extending from an end of said burner part Way toward the opposite end, said body being provided With nozzle outlets extending throughout its length.

CLAUDE M. DIBBLE.