US1961751A - Gas burner - Google Patents

Description

June 5, 1934. NG 1,961,751

GAS BURNER Filed Oct. 24, 1932 INVENTOR.

PerL/FFEy/my ClQ-vmw ATTORNEY.

ved'wr 1 3 v 1,961,751-

UNITED "STATESQ PATENT OFFICE Q i I i,9s1,'z 1 h v I l G SB R E Per'L. F; Feyling, Watertown,"Mass., assignor, by

mesne assignments, to Whitehead Metal Products Company of New York, Inc.; New York,- N. Y., a corporation of New-York A pplication October 24, 1932, Serial No. 639,190

8- Claims.- (Cl. 158-T106).\

The present invention relates to ,-gas burners top. thereof, By. constructingfth'e top in this and more-particularly to a gas; burner suitable ,manner; an expanding mixer chamber 4 is pro for small gas ;,consumption., I I .vided in which combustible gas and primary air It is an object of'the presentinvention to,pro =can be thoroughly mixed before combustion. Of

5 vicle a gas burner, which is especially suitable for course a straight mixer tube mayalso be used as. CO

installations where the gas consumption is rel one skilled in the art will readily understand. ativelysmalhsuch as installations consuming less- H A small orifice 5 in nozzle- N connects the comfthan about 10,000 B. t-.;u. per hour. l r i rbustiblegasinlet 6 with the mixer chamber 4.

It isa further object of the inventionrto pro- Directlyab ove orifice 5 is a plurality ofpriinary 10 vide a -gaslburnercapableof :operatingat varyinlets =7. fIfhese air inlets lead air from 65 ing gas pressures, varying gas consumptions andt the atmosphere to the mixer chamber where the" varying, burner temperatures to give complete air,'knownas primary air, is mixed with the com combustion. l bustible gas.

It is another object of the inventionto provide At themouth=3 of the mixer chamber, a plua gas. burner: which is simple inconstruction, inrality of vanes 8 are providedfo'r the purpose of .70

expensive fto fabricate and reliable in operation. dividing up the stream of gas passing through the I A further object of the invention is to provide mixer chamber. In the preferred enibOdimeIlt, a gas burner whichrvn'll not backfire andwhich these vanes are made in an integral unit in the has, such a construction that the port openings A form of aspider, 0 cannot easilybecome-clogged. Mountedzover the top otthe mixertube 1 is '75 It is also within the contemplation of the in-, a cap,9. This cap is spaced from the top of vention to, provide gas'burners in which the flame. the-mixer tube to provide a lateral port opencannotlift from the ports and in which coning 10.0, In nthe preferred embodiment .ofthe densatedripping Iromzheating surface s -over the inventio n, cap 9 is madejwiderthan the topof burner cannOt drip intothe-port openin'gsrthe mixer tube and is-made integral with vanes p It-is also withinthecontemplation of the inv,8. "Byproviding this construction, a gas burner ventionto proyide aggas burner which-has rel canlbe made of a few relatively smallfand sim- "'atively ;long.mixer tube cr chamber, to permitr plew parts which can be assembledeasily and:

thorough mixing of -the-combustible gas and readily. In the present instance,.the gas. burn primary-air and which has one or more'raised, er is madeof fourparts but it may also be made projections atjthe top ofthe mixertube for cause of saygtwo-parts or even made inthe form of an ing a notch or cut in the flame to allow secondary integral. casting. a 1 a air to' flow to ,the topside of the flametdgive I-t:is. prererred to provide one or fmore raised I complete combustion. .projectionsll' which project from the top ofthe' 35 Aturtheriobjectiof the'in vention is to prov d mixer tube. The small space betw en t e nde -I so a gas zburner which has-a simple opening for side of cap 9;,andprojection llacts asl an op'enpermitting-combustible gas to 1 burnwith a, smallffin wh r 91 gas W b h: a $1118.11 fl m Tflame which is capablelof igniting the combustible Once thi5?$ma11 fl m v is Sfi t'w ll i t gas-immediately, :aroundpractieally the entire, .thegas around the entirelateral. port opening, f port opening ,evenwhen ,very lean gas mixtures In actual tests, it has been found that even with" 95 and very; high sgaspressures areused. lean gas mix res n w h emh as Other, objectsand adyantagespf the invention ,".pressures ,the combustible gas, is, immediately will become-apparentirom the fOHOWiDg'dESCI'iDQ ignited around the n re t a p tppening} l tiontaken injconjunctionwiththe accompanying h igas burnermay be mounted or connected 5 drawinginwhichz- I Y IJJtO aas pei nY?'DD. P 3fi6m ner. Inth6-100 Fig. 1 is a sectional view of a preferred ernbodigas, burner, illustrated and described herein, ment of the presentinvention and; v I I j threads 12-are, provided at the bottom of the burn Fig,'2isan-elevationalviewlooking at theright ,Bym ans a union (notsho'wn), or an,

hand side of thegasburnershown in ,Figqi. q ival t up i e, the pr n urner may 50 The reference character 1 designates a mixer T -fi d y se u d .f v 8 5 P pfl, v

tubeofthepresentgasbumer. Inpractice it epolye apedfl 13-is pr vided at'an preferred to have, the mixertube of cylindrical. i te md fl i ql i b the rn and mfi r cross section although anyrother shapegma be erablyfjust, above threads 12, 1 A tool "such as a used. The interior of the mixer tube expands wrench, plyers; or the like, may beapplied to 55 from the lower end 2 to the wide mouth 3 at the flange 13 to screw the burner into a coupling,

gas pipe, or the like. In assembling the burner, flange 13 may also be used when mixer tube 1 is screwed on threads 14 located directly above the flange. In other words, flange 13 is useful in assembling the burner and in installing the burner as those skilled in the art will readily understand.

The operation of the gas burner is obvious to those skilled in the art, A combustible gas, such as city or manufactured gas, or natural gas enters the burner through gas inlet 6. The combustible gas passes through orifice 5 and sucks primary air from the atmosphere through in:

clined air inlets or ports 7. The combustible gas; and primary air are mixed in mixer tube 4. The

stream of mixed gas and air is divided by vanes 8 and passes through the lateral port opening 10. A small opening between the top of projection 11 and the underside of cap 9 provides a small stream of gas which ignites quickly. Once this gas is ignited, a small flame causes ignition of the gas issuing all around the lateral port opening. Due to the fact that the cap extends beyond the top of the mixer tube, any condensate or the like cannot drip into the port opening and clog the same. Furthermore, it is impossible for the gas flame to lift from the port opening or for the gas-air mixture to backfire.

It is to be noted that the gas consumption can be varied by making the nozzle containing orifice 5 as a small separate piece or insert and by having air inlets or ports '7 proportional to the gas consumption desired.

Although the invention has been described herein in connection with a preferred embodiment thereof, it is to be noted that variations and modifications may be made within the spirit and the scope of the invention as defined in the appended claims.

I claim:

1. A gas burner which comprises a tubular inlet for gas, an insert having a small gas orifice connected to said gas inlet, a tube having a plurality of spaced air ports associated with said gas orifice for supplying air from the atmosphere to gas issuing from said gas orifice, an expanding mixing chamber located within said tube and mounted above said air ports and said gas orifice for mixing said air and gas together, said tube having an outlet port at the top of said mixing chamber for burning the mixed air and gas, a cap mounted above said tube and extending beyond the periphery thereof to cause a lateral deflection of the mixed air and gas and to protect said outlet port from entry of condensate from the combustion of the mixed air and gas and other extraneous matter, and a projection from said tube and extending to a region closely adjacent to the under side of said cap whereby a small opening is formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

2. A gas burner which comprises a tubular gas inlet having an external thread at its lower end for connection with a gas supply, a polygonal shaped flange at an intermediate position thereof for a tool, threads located above the top of said flange, a cylindrical tube having threads at its lower end for union with the threads on the top of said gas inlet, an insert with a gas orifice positioned between the top of said gas inlet and the lower portion of said tube, a plurality of spaced air ports incorporated in said tube and located adjacent to said gas orifice for supplying air from the atmosphere for the gas issuing from said orifice, an expanding mixing chamber located within said tube and above said gas orifice for mixing said air and gas, and a cap mounted at the top of said tube and extending beyond the periphery thereof to provide a lateral port for burning said mixed air and gas and for protecting the mixing chamber of said tube against the entry of condensate from the combustion of said mixed air and gas and other extraneous matter, and a plurality of projections from the top of said tube and extending to a region adjacent to the under side of said cap whereby small openings are formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

3. A gas burner which comprises an inlet for gas, a tube having an air inlet port adapted to deliver air from the atmosphere to gas coming from said gas inlet, a mixing chamber located within said tube for said gas and air, an outlet port at the top 'of said tube for said mixed air and gas, a cap mounted over said outlet port to cause a lateral deflection of said mixed air and gas and to protect said outlet port from entry of condensation products from the combustion of mixed air and gas and the like, and a projection from said tube and extending to a region closely adjacent to the under side of said cap whereby a small opening is formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

4. A gas burner which comprises an inlet for gas, an insert having a small gas orifice connected to said gas inlet, a tube having an air port associated with said gas orifice for supplying air from the atmosphere to gas issuing from said orifice and having a mixing chamber located above said air port and gas orifice for mixing air and gas together, an outlet port at top of said tube and arranged at the end of said mixing chamber for the burning of said mixed air and gas, a cap mounted over said outlet port and arranged to cause a lateral deflection of said mixed air and gas and to protect said outlet port from entry of condensate from the combustion of mixed air and gas and other extraneous matter, and a projection from said tube and extending to a region closely adjacent to the under side of said cap whereby a small opening is formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

5. A gas burner which comprises a tubular inlet for gas, an insert having a small gas orifice connected to said gas inlet, a tube having a plurality of spaced air ports associated with said gas orifice for supplying air from the atmosphere to gas issuing from said gas orifice and having an expanding mixing chamber mounted above said air ports and said gas orifice for mixing said air and gas together, an outlet port located in said tube at the top of said mixing chamber for burning the mixed air and gas, a cap mounted above said outlet port and extending beyond the periphery thereof to cause a lateral deflection of the mixed air and gas and to protect said outlet port from entry of condensate from the combustion of the mixed air and gas and other extraneous matter, and a projection from said tube and extending to a region closely adjacent to the under side of said cap whereby a small opening is formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

6. A gas burner which comprises a tubular inlet for gas, an insert having a small gas orifice connected to said gas inlet, a tube having a plurality of spaced circular air ports associated with said gas orifice for supplying air from the atmosphere to gas issuing from said gas orifice, said air ports being inclined upwardly towards the mouth of said gas orifice, said tube having a conical mixing chamber mounted above said air ports and said gas orifice for mixing said air and gas together and having an outlet port at the top of said mixing chamber for burning the mixed air and gas, a cap mounted above said outlet port and extending beyond the periphery thereof to cause a lateral deflection of the mixed air and gas and to protect said outlet port from entry of condensate from the combustion of the mixed air and gas and other extraneous matter, and a plurality of projections from the top of said tube and extending to a region adjacent to the under side of said cap whereby small openings are formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

7. A gas burner which comprises a tubular inlet for gas, an insert having a small gas orifice connected to said gas inlet, a tube having a plurality of spaced air ports associated with said gas orifice for supplying air from the atmosphere to gas issuing from said gas orifice and having an expanding mixing chamber mounted above said air ports and said gas orifice for mixing said air and gas together, an outlet port at the top of said tube for burning the mixed air and gas, a plurality of vanes positioned within said tube and adjacent to said outlet port for dividing the stream of mixed air and gas, a cap mounted above said outlet port and extending beyond the periphery thereof to cause a lateral deflection of the mixed air and gas and to protect said outlet port from entry of condensation from the combustion of the mixed air and gas and other extraneous matter, and a plurality of projections from the top of said tube and extending to a region adjacent to the under side of said cap whereby small openings are formed where the mixed air and gas will burn with a small flame which will ignite the gas around the entire periphery of the outlet port.

8. A gas burner which comprises a tubular gas inlet having an external thread at its lower end for connection with a gas supply, a polygonalshaped flange at an intermediate position thereof for a tool, and threads located above the top of said flange, a cylindrical tube having threads at its lower end for union with the threads on the top of said gas inlet, an insert with a gas orifice positioned between the top of said gas inlet and the lower portion of said tube, a plurality of spaced air ports incorporated in said tube and located adjacent to said gas orifice for supplying air from the atmosphere for the gas issuing from said orifice, an expanding mixing chamber located within said tube and above said gas orifice for mixing said air and gas, a cap mounted at the top 01' said tube and extending beyond the periphery thereof to provide a lateral port for burning said mixed air and gas and for protecting the mixing chamber of said tube against the entry of.con densate from the combustion of said mixed air and gas and other extraneous matter, and a plurality of projections from the top of said tube and extending to a region adjacent to the under side of said cap whereby small openings are formed where the mixed air and gas will burn with a small flame which will ignite the-gas around the entire periphery of the outlet port.

PER .L. F. FEYLING.

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