Патент USA US2411324код для вставки
Nov. 19, 1946. c. 1... GAGNON 2,411,324 BURNER DEVICE FOR FURNACES Filed Oct. 2, 1944 IOOOODI K/ 9 29 2/ C?ar/és L. (59572022 Patented Nov. 19, 1946 2,411,324 , ,RUNIITEDI. .STATES 'PATEN T'- OFFICE ' 2,411,324 BURNER- DEVICE FOR FURNACES ‘ Charles L. Gagnon, Green Bay, Wis. ApplicationOctober 2, 1944, Serial No. 556,821 5 Claims. (Cl. 126-83) ' 1 This invention relates generally to the class of ' stoves and furnaces and pertains particularly to an improved fuel burner unit which is designed to effect a more thorough combustion of the fuel. The principal object of the present invention is to provide a device designed for installation in a furnace structure, which is designed to regulate the flow of air through the burning fuel in such a manner as to thoroughly-consume the fuel and 2 responding parts throughout the several views, the numeral l0 generally designates a furnace structure of conventional design in which the fuel combustion chamber is designated II. In the lower part of the combustion chamber is a conventional grate l2 above which is located the usual upwardly ?aring ?re-pot I3. The chimney pipe or lead-off for the products of com bus'tion is indicated at I4‘ while the conventional consequently obtain therefrom the maximum of 10 fuel admission door opening and door covering the 4 heating action. same are designated l5 and I6 respectively. Another object of the ‘invention is to provide a In accordance with the present invention there device for installation in the ?re-box of a furnace, is provided a cylindrical structure in the form of "which is formed to provide a fuel receivingrecep a truncated cone which is generally designated tacle and combustion chamber which is con 15 ll. ‘This might be de?ned as a dome which'has structed in a novel manner to cause the combus a base circumference the same as the circum tion supporting?air to be circulated in a noyel ference of the top of the ?re-pot l3 upon which it manner through the fuel and through a heat ra diating drum before the products of combustion The dome I] may be formed in two sections or pass off to the chimney, thereby effecting an ab 20 more asdesired to facilitate its installation in the sorption of the fuel heating‘ units to a greater ex ‘?re-box or combustion chamber of the furnace, tent than would be the case if the fuel were con such sections being secured together by bolts or sumed in the usual open ?re-box of the furnace other ‘suitable means. ' . structure. Formed through the wall of the dome l1 and Other objects and advantages of the ‘invention extending through a substantial portion of‘the will become apparent as the description of the circumference of the unit, is a door opening which same proceeds, and the invention will be best un is located in the set-up structure adjacent to the derstood from a consideration of the following de furnace opening [5, such door or fuel admission rests. tailed description taken inrconnection ‘with the accompanying drawing forming a part of the specification, with the understanding, however, that the invention is not con?ned to a strict con formity with the showing of the drawing but may be changed orv modi?ed so long as such changes or modi?cations mark no material departure from the salient features of the invention as expressed in the appended claims. In the drawing; ‘ . ' opening being designated, l8. v ' Adjacent to the bottom edge of the dome is the guide ?ange IS in which is‘slidably engaged the bottom edge ?anges 20 of the two sliding doors 2 I. ‘Each of these doors has formed therethrough, draft openings 22 controlled by the usual control or damper plate 23. The draftv openings are so located in the sliding doors that they willbe oppo site the door opening l5 when the sliding doors 2| are in closed position. Figure 1 is a vertical sectional view through a furnace and a structure installed therein, con structed in accordance with the present inven tion. . > ‘ Disposed vertically within the dome is an im 40 perforate ?ue cylinder 24, at the‘top edge of which is the outwardly projecting ‘surrounding flange . 25 which engages over the top edge of the dome Figure 2 is a partial horizontal section taken unit i1 so that the cylinder hangs from the dome on the line 2--2 of Figure 1. unit. ‘The cylinder is of a length to extend a sub Figure 3 is a view in front elevation of the hood 45 stantial distance downwardly into the ?re-pot or truncated cone per se. . _ l3_ but terminates a substantial distance above the Figure 4 is a horizontal section taken on the grate I! so that fuel introduced into the dome and line 4-4 of Figure 3. I fire-pot may ?ow under the lower end of the cyl Figure 5 is a detail section on an enlarge inder across the grate, to the center of the fire scale through a portion of the upper end of the 60 pot. ‘ structure. Figure 6 is a view in top plan of the portion of the structure‘ sl: own in section in Figure 5. Referring now more particularly to the drawing wherein like numerals of reference indicate cor Disposed concentrically within the cylinder 24 is an inner cylinder 26 which is of substantially the same length as cylinder 24 and is perforated throughout as indicated at 21. The cylinder 26 is of materially less outside diameter than the in 2,411,824 terior diameter of the cylinder 24 and the two cylinders are maintained in spaced parallel rela doors 23 carried by the sliding doors 2| or addi tional air can be admitted by opening the usual draft control 36, on the door it, together with the tion, vby the spacer blocks 23 carried upon the outer wall of the cylinder 23, and suitable screws draft control member 23. If a check of the com or bolts 23 which are passed through the Wall Of bustion is desired this can be effected in the usual the outer cylinder 24 and into the blocks. manner of opening the draft control means, not The upper end of the inner perforated cylinder shown, carried by the door It and keeping the 26 is closed by the perforated head or top plate draft controls 23 closed so that air comin‘ in 30. This head is peripherally ?anged as indi through the opening l5 will ?ow directly upw rd cated at 3| and such ?ange extends into the up 10 ly into the upper part of the combustion chamber per end of the cylinder 26 to maintain the head in and thus reduce the suction through the grate. proper position. The device of the present invention not only Supported by the top of the cylinder 24, is an functions to effect the more complete combustion _ upwardly and outwardly ?aring sectional unit 32, of the fuel 50 as to extract therefrom the maxi which is of circular form and which comprises a 15 mum of heat units, but it also prevents chimney lower annular neck portion 33 which merges with ?res, eliminates clinkers and back-?ring, and the upwardly and outwardly extending or ?aring minimizes black smoke in the chimney or stack. portion 34. The annular portion 33 of this unit The device has been illustrated in a conven ?ts tightly into the upper end of the cylinder 24 tional type of hot air heating furnace but it is'to and the ?aring portion 34 extends upwardly an 20 be understood that it is not con?ned to such outwardly in the ?re-box as shown. ' use but may be used in any type of furnace where it is found applicable. The top edge of the ?ared unit 32 lies relatively I claim: ' close to the top of the ?re-box H and as will be readily seen upon reference to Figure 1', the dome 1. In a furnace structure having a ?re-box or extends upwardly and centrally across, but is 25 combustion chamber, a ?re-pot therein, a door spaced from, the inner end of the chimney pipe I4. opening leading into the chamber and a smoke Thus it will be seen thatvthe smoke and gases pipe leading from the chamber; a truncated cone from burning fuel cannot ‘?ow directly from the of hollow form open at its top and‘ bottom, hav ?re-bed to the chimney but must pass up through ing the bottom resting against the top edge of the the perforated cylinder 26 and cylinder 24 and 30 ?re-pot. the cone extending upwardly in the through the ?ared unit and spread out under the chamber, a door opening in said cone, a door for top or roof of the combustion chamber and then closing said door opening, a cylindrical unit ?ow downwardly across the outer side of the unit connected at one end withthe smaller end of the and the dome before passing to the chimney. cone and extending downwardly through the cone It will be readily understood that the various 35 into the fire-pot, and means mounted upon the parts of the present device will, for convenience top of the cone forming an upwardly and out of installation, be formed in sections, as illus wardly ?aring de?ector, said cone extending above trated, adapted to be coupled together as the sec the level of the smoke pipe and the door opening tions are assembled. of the cone being disposed opposite the door open As will be readily apparent from the illustra 40 ing leading into the combustion chamber.. . tion, fuel will be charged into the ?re-pot through 2; A structure as set forth in claim 1, in which the door opening I5 and through the opening l8 ' the cylindrical unit comprises a pair of spaced of the structure forming the present invention, to parallel cylindrical bodies, the outer one of said fill the space between the ?re-pot l3, the dome I ‘I bodies being imperforate and the inner one of the and the cylinder 24. bodies being perforated. ‘ When the fuel is introduced it will be caused to move centrally in the ?re-pot by the inclined or slanted ?re-pot wall and as the fuel is burned 3. A structure as set forth in claim 1, in which the said cylindrical unit comprises two spaced parallel cylindrical bodies of a length greater from beneath the top layers will naturally drop than the height of the cone, the outer one of the and be urged toward the center of the ?re-pot by 60 cylindrical bodies being .imperforate and con reason of the inclined wall and also from the nected at one end with the top edge of the cone. effect of the down draft. the inner one of the cylindrical bodies being per ‘ b When the fuel is charged into the furnace it forated. V ‘ it directed on each side of the cylinders and with 4. A unit for installation in a furnace structure enough force that, because of the circular form 55 comprising a hollow truncated conical body open of the burner and ?re-pot, it will be forced to at its ends, a cylindrical unit of greater length move around the cylinders so as to ?ll the ?re-pot than said body and comprising spaced inner and outer cylinders, the outer cylinder being imper forate and the inner cylinder being perforated. that the fuel can be readily distributed around 60 the outer cylinder having a ?anged end engaging the cylinders and thus, with the fuel being forced over the edge of the smaller end of the body, and to move inwardly as it drops in the ?re-pot, there a circular upwardly and outwardly ?aring de completely. _ From the foregoing it will be readily apparent will always be a sumcient quantity in the center of the grate for the production‘ of a good bed of live coals. Even if there were no fuel in the cen .65 ter of the grate there would be su?icient amount of live embers or coals toward the side and by virtue of the down draft these would be drawn I centrally and inwardly. ?ector connected with the ?anged end of the im perforate cylinder. 5. A structure as set forth in claim 4, in which the de?ector unit comprises an annular bottom portion designed for insertion into the upper end of the imperforate cylinder, and an upwardly and outwardly extending top portion projecting a sub Recirculation of some of the gases and prod 70 stantial distance above and beyond the ?anged nets of combustion through the fuel and to the end of the imperforate cylinder. 4 fire-bed may be effected by opening the draft CHARLES L. GAGNON.