US3620657A - Burners - Google Patents

Burners Download PDF

Info

Publication number
US3620657A
US3620657A US36987A US3620657DA US3620657A US 3620657 A US3620657 A US 3620657A US 36987 A US36987 A US 36987A US 3620657D A US3620657D A US 3620657DA US 3620657 A US3620657 A US 3620657A
Authority
US
United States
Prior art keywords
counterflow
tube
chamber
inner tube
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US36987A
Other languages
English (en)
Inventor
Edgar C Robinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INTERNATIONAL THERMAL RESEARCH Ltd 1311 VALMONT WAY RICHMOND BRITISH COLUMBIA A CORP OF BRITISH COLUMBIA CANADA
INT INDUSTRIES Ltd
Original Assignee
INT INDUSTRIES Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INT INDUSTRIES Ltd filed Critical INT INDUSTRIES Ltd
Application granted granted Critical
Publication of US3620657A publication Critical patent/US3620657A/en
Assigned to INTERNATIONAL BURNER CORP., LTD. reassignment INTERNATIONAL BURNER CORP., LTD. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE 4/08/70 Assignors: INTERNATIONAL INDUSTRIES, LTD
Assigned to INTERNATIONAL THERMAL RESEARCH LTD., 1311 VALMONT WAY, RICHMOND, BRITISH COLUMBIA, A CORP. OF BRITISH COLUMBIA, CANADA reassignment INTERNATIONAL THERMAL RESEARCH LTD., 1311 VALMONT WAY, RICHMOND, BRITISH COLUMBIA, A CORP. OF BRITISH COLUMBIA, CANADA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTERNATIONAL BURNER CORP. LTD., A CORP. OF BRITISH COLUMBIA, CANADA
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/02—Combustion apparatus using liquid fuel
    • F23C2700/023—Combustion apparatus using liquid fuel without pre-vaporising means

Definitions

  • the present invention relates to oil burners suitable for use in heating installations of various kinds but particularly for those intended for use in association with domestic heating units and especially domestic hot water heating units.
  • Oil-buming hot-water heaters of the type used in many households are unable to operate efficiently due in part to the design of the burners thereof and partly because the oil and air which provides the combustible mixture are both fed to such burners under considerable pressure.
  • the combustion cha-J- bers of most domestic burners are considerably smaller than those of commercial hot water heaters for example.
  • fuel tends to be swept through these chambers before it can be preheated and mixed thoroughly as is necessary if a high rate of heat release is to be achieved.
  • a high-pressure burner requires that the combustion chamber associated therewith be lined with a refractory material, and to sustain combustion this material must be incandescent.
  • the invention consists of means for accomplishing the method steps which are characterized by initially projecting a relatively long jet or tongue of flame from ignited fuel longitudinally from an injecting nozzle assembly to a principal burning zone which is remote therefrom and well within (usually substantially centrally within) a surrounding axially vertical combustion chamber. Simultaneously with what has just been stated, a counterflow of a part of said jet or tongue is caused to travel oppositely or back toward the general region from whence the flame emerges from the nozzle assembly, the counterflowing part returning somewhat as might a fountain having a ring of jets around a central jet, or as petals might droop from a flower except that the flow here being referred to is horizontal.
  • the originating location of the counterflow is between the nozzle assembly or source of flame and the aforesaid principal burning zone.
  • the counterflow is reintroduced back into the main central jet or tongue near the said source or nozzle assembly.
  • the next step in the accomplishment of the present invention is that of separating the tongue of flame from the nozzle when a sufficient rise in ambient temperature has supervened.
  • This separation and extinguishment of the flame tongue is caused by the turning off of the ignition electrode adjacent the aforesaid nozzle.
  • the flame leaves the vicinity of the nozzle assembly travelling the full length of the burner to appear in the form ofa multiplicity of clean blue uniform flame jets at the mentioned principal burning zone.
  • a band of similar clear blue flame jets appears at the originating location of counterflow.
  • the principal burning zone is further from the nozzle assembly than the originating location of counterflow.
  • the burner is designed for consuming any fuel from kerosene to Type 2 furnace oil without adjustment.
  • another particular novel feature of the burner may be stated as residing in the fact that it operates at atmospheric pressure and requires no forced draft, the only point at which a small quantity of air under pressure is admitted to the burner being at the injection nozzle assembly thereof where such pressure is in the order of up to 10 psi. as a rule, this being substantially solely for the purpose of breaking up and impelling particles of oil mixed with air into the burner at the point where the fuel is ignited.
  • a novel advantage flowing from the last aforementioned objective lies in the fact that such a burner both starts up and operates at sound levels which are low and comparable to existing gas fired units which are well known to have acoustic advantages. At the same time, due to its high recovery rate the present burner would appear to be favorably competitive with gas in terms of consumption costs.
  • a further novel objective achieved by the present burner and also flowing from what has already been stated resides in that operation at atmospheric pressure, or in other words, with natural draft, eliminates one of the biggest service problems which is that of the linting up of oil burners.
  • this is meant the accumulation of dust and lint upon the fan blades of a forced draft blower; also the accumulation of such materials upon the parts surrounding and adjacent the fan whereby the area of air entry into the burner is diminished; and also the charring of the burner orifices with lint mixed with incompletely burned oil due to the slowing down of the fan blades consequent upon the deposit of said lint thereon whereby the air intake capacity is decreased and hence the combustibility of fuel within the burner.
  • a yet further novel feature of the present burner arising out of its quietness of running is its suitability for oil-burning use (particularly when the burner plates are made rectangular instead of circular as herein) in association with clamshell heat exchangers as used in automobile trailers, cabin cruisers and the like, which are extremely easy to manufacture and assemble, and are relatively deep, wide, cross-sectionally narrow, and more or less corrugated being formed of two similar stampings edge joined and between which the burner is placed usually in multiples of three.
  • a further objective achieved by the burner consists of efficiencies in the order of84 percent combined with the employment of a burning process which is nearly perfect, the combustion gases containing only traces of CO and no visible smoke or soot.
  • the low stack temperature achieved can be advanced to the authorities concerned in favor of permitting the main chimney for such a burner to employ type "B" vents as presently allowed for gas-fired units only.
  • a further object is to vaporize a tongue of fuel within an inner burner tube by a surrounding counterflow to provide means for preventing it from becoming reignited.
  • the present invention consists of the inventive concept which is comprised, embodied, embraced, or included in the method, process, construction, composition, arrangement or combination'of parts, or new use of any of the foregoing, herein exemplified in one or more specific embodiments of such concept, reference being had to the accompanying Figures in which:
  • FIG. 1 is a plan representation of the invented oil burner.
  • FIG. 2 is a sectional elevation substantially on the line 2-2 of FIG. 1.
  • FIG. 3 is an end elevation as viewed from the right of FIG. 2.
  • FIG. 4 is a plan representation for the purpose of orientating and depicting in situ the invented oil burner in and with respect to an enclosing combustion chamber.
  • FIG. 5 is a representation of the flame travel immediately following startup.
  • FIG. 6 is a representation similar to FIG. 5 some 60 to 90 seconds after startup.
  • FIG. 7 is a circuit detail showing an example of a means for causing the flame tongue to be extinguished when a sufficient rise in ambient temperature is supervened.
  • the invention includes an inner burner tube A, a surrounding jacket 8, said tube and jacket each having first ends C and D respectively, and adjacent second ends E and F respectively, said jacket being spaced from said tube, a fuel nozzle assembly G, and an ignition electrode H characterized by including (i) a burner head J on the first end of said tube, (ii) means in the form of a first end wall K (the second end wall being L), the multiple-apertured first and second annular bands M and N, and the tube and jacket A and B respectively defining the surrounding counterflow chamber 0, for providing a counterflow of ignited fuel I (FIG. 5) through said counterflow chamber, 7 i
  • said counterflow P being opposite in direction to the flow, and consisting of a portion of, a tongue 0 of flammable fluid projected through tube A from nozzle assembly G, (iii) the original location R of the aforesaid counterflow being between the said nozzle assembly and the said burner head, (iv) means comprising in combination the aforesaid second band N and the annular space S for reintroducing counterflow P back into inner tube A, and (v) means consisting of a thermostatic cutout for causing flame tongue 0 to be extinguished when a sufficient rise in ambient temperature has supervened, and simultaneously therewith thereby causing the generation of a blue flame T at originating location R and at a principal burning zone U, said burning zone being further from nozzle assembly G than originating location of counterflow R.
  • These end walls, together with the jacket B, and the portion 24 of tube A which is between said end walls define the aforesaid counterflow chamber 0 which is best seen from FIG. 2 to be relatively elongated and of annular configuration.
  • Second end wall 22 is centrally apertured at 28 to provide an intake orifice for the elongated flame tongue 0, a frustoconical funnel 32 being secured to the perimeter of aperture 28 upon the external side of chamber 14 to accommodate ignition assembly G and electrode H.
  • Burner head I is in the form of an outflared and rimmed formation or somewhat circular washbasin shaped. Spanning the rim thereof is a pair of slightly spaced multiapertured fuel jet plates 34. Burner tube A is held centered within jacket 8 by two discoid rings, one of which is styled an apertured air distributor 36 slightly spaced from plate 20 within chamber 0. The other is a flame arrestor plate 38, secured to tube A and jacket B as clearly depicted to prevent reignition of the flame of tongue Q after it has been extinguished and vaporized as will hereinafter be explained.
  • annular band 40 Communication between inner tube A and counterflow chamber 0 is provided by means of a first annular band 40, a second annular band 42, and an annular space 44. Both annular bands are multiapertured, said apertures being designated 46. Annular space 44 is located between the second end D and second end wall L. A pair of aligned central and relatively enlarged apertures 48 are provided in jet plates 34. Flanges 50 overlap the opposite ends ofjacket B (which is for all practical purposes coincident with combustion chamber wall 12). Secured upon the external side of said wall (in other words to the right of said wall as appears from FIG. 2) are adjustable means collectively designated 52 for varying the admission of combustion supporting air to the interior of tube A and the surrounding combustion chamber 14.
  • Wall 54 is provided with a set of spaced apertures 58.
  • a ring 60 provided with apertures of the same size as apertures 58 and capable of registration or partial registration therewith upon rotation of the ring which is normally held clamped to wall 54 by means of the conventional nut and bolt bracket assembly collectively designated 62 (FIG. 3).
  • annular layer of the tongue of flame is so to say stripped off and proceeds through first annular band 40 into the original location of the commencement of counterflow R it counterflows through chamber 0 oppositely back through flame arrestor plate 38, annularly or radially inwards through second apertured annular band 42 as well as through annular space S to recirculate again toward burner head .I within burner tube K v seconds. At that time ignition electrode H is automatically inactivated.
  • the flame Q is luminous it will be understood that it is luminous flame which also counterflows in chamber 0 and which proceeds onwardly to and through jet plates 34 including the central spire of flame 74.
  • the tongue Q is in the form of a gas and it is as a gas that the fuel counterflows backwardly through chamber 0 as indicated in FlG. 6.
  • all that is visible when vaporizing or gasifying heat has been achieved is a ring of blue flame jets T, and an upper facing disc of such jets at the principal burning zone generally designated 76, such disc being horizontal in virtue of the generally right-angular disposition of the inner burner tube to the head J.
  • the invented oil burner is a low-pressure air-aspirating and atomizing burner.
  • Fuel oil is drawn through the inlet valve of an associated gear-type oil pump and discharged into the float chamber thereof, which float chamber contains a floatoperated oil return control valve. From this float chamber a zero pressure regulator is fitted to the nozzle assembly supply line.
  • a vane-type air pump driven by an electric motor common to the oil pump provides air at a pressure of approximately 6 p.s.i. to the nozzle. Oil is lifted to the nozzle mixing zone by the aspirating action of the atomizing primary air. As already stated a relatively large nozzle is employed.
  • the primary air-oil mixture passes through a horizontal preheating and vaporizing zone being that which has already been described in detail and illustrated in the accompanying drawings before being deflected by a 90 elbow (the angulation between A and .l) to discharge across a diffuser plate, or as heretofore designated, the plates 34 where it is ignited. Secondary combustion air is drawn in concentrically at the aperture 30 as also already described, about the burner tube A to counterflow chamber 0.
  • the fuel used was standard Esso Furnace Oil ASTM Specification D-306 Grade No. 2 distillate fuel.
  • FIG. 7 a means for causing the flame of tongue Q to be extinguished when a sufficient rise in ambient temperature has supervened.
  • the circuitry shown is purely exemplary and not that which is actually used since the circuitry actually used is considerably complicated beyond what has herein been shown having regard for other purposes such as demand startup, safety controls and the like common to oil burner installations.
  • the circuitry of FIG. 7 is purely exemplary and not that which is actually used since the circuitry actually used is considerably complicated beyond what has herein been shown having regard for other purposes such as demand startup, safety controls and the like common to oil burner installations.
  • a grounded heater coil 90 is provided on one side of the electrode circuit 92, as an element in the series circuit 94.
  • a shunt 96 to one ofapair of terminals 98 and 100 is located in the shunt circuit 96.
  • a bimetallic strip thermostat 102 is connected in the circuit 94.
  • a fluid fuel burner embodying an inner burner tube, a surrounding jacket, said tube and said jacket each having a first end and adjacent second ends, said jacket being spaced from said tube, a fuel nozzle assembly, an ignition electrode and sufficient air intake means, the foregoing being characterized by including:
  • ii. means for providing a counterflow of ignited fuel through a counterflow chamber existing between and by virtue of said tube and said jacket, said counterflow being opposite in direction to the flow of, and consisting of a portion of, a tongue of flammable fluid projecting through said tube from said nozzle assembly iii. the originating location of said counterflow being between said nozzle assembly and said burner head iv. means for reintroducing said counterflow back into said inner tube near said nozzle assembly, and
  • v. means for causing the flame of said tongue to be extinguished when a sufficient rise in ambient temperature has supervened, and substantially simultaneously therewith thereby causing the generation of a blue flame at the said originating location of counterflow, and at a principal burning zone, said burning zone being further from said nozzle assembly than said originating location of counterflow.
  • a fluid fuel burner embodying an inner burner tube, a surrounding jacket, said tube and jacket each having a first end and adjacent second ends said jacket being spaced from said tube, a fuel nozzle assembly, an ignition electrode and sufficient air intake means, the foregoing being characterized by including:
  • a burner head on the first end of said tube ii. first and second end walls for said jacket providing a counterflow chamber therebetween surrounding said inner tube, said inner tube admitting fuel at said second end and discharging it at said first end,
  • said second end wall extending between said jacket and inner tube adjacent said nozzle assembly iv. said inner tube being vented to an external side of said chamber at the first end of said jacket.
  • said first end wall being predominantly imperforate but sufficiently apertured as to permit a limited volume of counterflow air into said surrounding chamber vi.
  • said inner tube being of greater length than said jacket and projecting through an aperture provided therefor in said first end wall
  • said inner tube providing communication with said chamber adjacent both said end walls for the counterflow and reintroduction respectively, to said inner tube of products of combustion burnt within said inner tube,
  • saidbumer head being upon the first end portion of said inner tube which end projects through said first end wall to said external side of said chamber.
  • the invention according to claim 5 which is also characterized by including a multiapertured air-distributing plate on the counterflow chamber side of said first end wall, slightly spaced therefrom.
  • the invention according to claim 9 which is also characterized by including a multiapertured air-distributing plate on the counterflow chamber side of said first end wall, and slightly spaced therefrom.
  • burner head is characterized by being secured to the fuel discharge end of said inner tube, said head being in the form of an outflared and rimmed head formation, and at least one multiaper tured fuel jet plate spanning said rim.
  • burner head is characterized by being secured to the first end of said inner tube, said head being in the form of an outflared and rimmed head formation and at least one multiapertured fuel jet plate spanning said rim.
  • said burner head is characterized by being secured to the first end of said inner tube, said head being in the form of an outflared and rimmed head portion, and a pair of closely spaced and parallel, multiapertured fuel jet plates spanning said rim, said burner in situ being axially horizontal with said inner tube horizontal and said burner head generally right-angularly disposed with said inner tube axis so that said head formation opens upwardly with the rim thereof lying in a horizontal plane.
  • said burner head is characterized by being secured to the first end of said inner tube, said head being in the form of an outflared and rimmed head portion, and a pair of closely spaced and parallel multiapertured fuel jet plates spanning said rim, said burner in situ being axially horizontal, with said inner tube horizontal and said burner head generally right-angularly disposed with respect to said inner tube axis so that said head formation opens upwardly with the rim thereof lying in a horizontal plane.
  • the invention according to claim 6 which is also characterized by including a multiapertured air-distributing plate on the counterflow chamber side of said first end wall, and slightly spaced therefrom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
US36987A 1969-10-08 1970-05-13 Burners Expired - Lifetime US3620657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4949669 1969-10-08

Publications (1)

Publication Number Publication Date
US3620657A true US3620657A (en) 1971-11-16

Family

ID=10452550

Family Applications (1)

Application Number Title Priority Date Filing Date
US36987A Expired - Lifetime US3620657A (en) 1969-10-08 1970-05-13 Burners

Country Status (8)

Country Link
US (1) US3620657A (fr)
AU (1) AU2011270A (fr)
BE (1) BE757232A (fr)
CH (1) CH515456A (fr)
DE (1) DE2047457A1 (fr)
GB (1) GB1326741A (fr)
NL (1) NL7014687A (fr)
SE (1) SE365602B (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764255A (en) * 1971-07-13 1973-10-09 Rockwell International Corp Vaporizing fuel oil burner
US3990831A (en) * 1975-09-04 1976-11-09 Consolidated Natural Gas Service Co., Inc. Recirculating burner
US3994665A (en) * 1975-09-12 1976-11-30 Consolidated Natural Gas Service Co., Inc. Recirculating burner
US4003691A (en) * 1975-08-22 1977-01-18 Consolidated Natural Gas Service Co., Inc. Recirculating burner
US4023921A (en) * 1975-11-24 1977-05-17 Electric Power Research Institute Oil burner for NOx emission control
US4061463A (en) * 1975-12-12 1977-12-06 Burdett Manufacturing Company Combustion system and method
US4318688A (en) * 1979-05-08 1982-03-09 Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. Oil burner
US4802423A (en) * 1987-12-01 1989-02-07 Regenerative Environmental Equipment Co. Inc. Combustion apparatus with auxiliary burning unit for liquid fluids
US6478022B2 (en) * 1998-04-15 2002-11-12 International Thermal Investments Ltd. Self-contained camp heater
US20020185114A1 (en) * 1998-09-28 2002-12-12 Chu Yu-Sen James Flame arrestor system for fuel pump discharge
US20050244764A1 (en) * 2002-07-19 2005-11-03 Frank Haase Process for combustion of a liquid hydrocarbon
US20070218776A1 (en) * 2006-03-20 2007-09-20 American Water Heater Company, A Corporation Of The State Of Nevade Fuel supply line connector for water heater mounting bracket
US20100154723A1 (en) * 2006-03-20 2010-06-24 Garrabrant Michael A ULTRA LOW NOx WATER HEATER
US20110076629A1 (en) * 2009-09-29 2011-03-31 Pawel Mosiewicz LOW NOx INDIRECT FIRE BURNER
US20120003595A1 (en) * 2009-09-29 2012-01-05 Honeywell International Inc. High turn down low nox burner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170717B1 (fr) * 1984-08-09 1988-04-27 Dowa Co., Ltd. Brûleur à évaporation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277945A (en) * 1965-02-25 1966-10-11 Franklin Institute Fuel combustion system
US3366154A (en) * 1966-08-01 1968-01-30 Gulf Research Development Co Recirculating burner
US3545902A (en) * 1968-09-23 1970-12-08 Frank W Bailey Blue-flame gun burner process and apparatus for liquid hydrocarbon fuel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277945A (en) * 1965-02-25 1966-10-11 Franklin Institute Fuel combustion system
US3366154A (en) * 1966-08-01 1968-01-30 Gulf Research Development Co Recirculating burner
US3545902A (en) * 1968-09-23 1970-12-08 Frank W Bailey Blue-flame gun burner process and apparatus for liquid hydrocarbon fuel

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764255A (en) * 1971-07-13 1973-10-09 Rockwell International Corp Vaporizing fuel oil burner
US4003691A (en) * 1975-08-22 1977-01-18 Consolidated Natural Gas Service Co., Inc. Recirculating burner
US3990831A (en) * 1975-09-04 1976-11-09 Consolidated Natural Gas Service Co., Inc. Recirculating burner
US3994665A (en) * 1975-09-12 1976-11-30 Consolidated Natural Gas Service Co., Inc. Recirculating burner
US4023921A (en) * 1975-11-24 1977-05-17 Electric Power Research Institute Oil burner for NOx emission control
US4061463A (en) * 1975-12-12 1977-12-06 Burdett Manufacturing Company Combustion system and method
US4318688A (en) * 1979-05-08 1982-03-09 Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. Oil burner
US4802423A (en) * 1987-12-01 1989-02-07 Regenerative Environmental Equipment Co. Inc. Combustion apparatus with auxiliary burning unit for liquid fluids
US6478022B2 (en) * 1998-04-15 2002-11-12 International Thermal Investments Ltd. Self-contained camp heater
US20020185114A1 (en) * 1998-09-28 2002-12-12 Chu Yu-Sen James Flame arrestor system for fuel pump discharge
US6823831B2 (en) * 1998-09-28 2004-11-30 Parker-Hannifin Corporation Flame arrestor system for fuel pump discharge
US20050244764A1 (en) * 2002-07-19 2005-11-03 Frank Haase Process for combustion of a liquid hydrocarbon
US20070218776A1 (en) * 2006-03-20 2007-09-20 American Water Heater Company, A Corporation Of The State Of Nevade Fuel supply line connector for water heater mounting bracket
US20100154723A1 (en) * 2006-03-20 2010-06-24 Garrabrant Michael A ULTRA LOW NOx WATER HEATER
US20110076629A1 (en) * 2009-09-29 2011-03-31 Pawel Mosiewicz LOW NOx INDIRECT FIRE BURNER
US20120003595A1 (en) * 2009-09-29 2012-01-05 Honeywell International Inc. High turn down low nox burner
US8784096B2 (en) * 2009-09-29 2014-07-22 Honeywell International Inc. Low NOx indirect fire burner

Also Published As

Publication number Publication date
CH515456A (de) 1971-11-15
NL7014687A (fr) 1971-04-14
SE365602B (fr) 1974-03-25
GB1326741A (en) 1973-08-15
DE2047457A1 (de) 1971-04-22
AU2011270A (en) 1972-03-23
BE757232A (fr) 1971-04-08

Similar Documents

Publication Publication Date Title
US3620657A (en) Burners
US4789331A (en) Liquid fuel burner
US3741166A (en) Blue flame retention gun burners and heat exchanger systems
US3319692A (en) Oil burner
USRE28679E (en) Burners
US3368604A (en) Combustion apparatus
US4047511A (en) Perfect fuel gasification device for use in combination with a combustion apparatus of internal combustion engine
US3734677A (en) Liquid fuel burner
US3545902A (en) Blue-flame gun burner process and apparatus for liquid hydrocarbon fuel
US3254695A (en) Diffusion burner
US1640728A (en) Domestic oil burner
US3486835A (en) Power conversion burner head
US2996143A (en) Smoke eliminator
US2966944A (en) Liquid fuel burning heater
US3460895A (en) Device for gasifying and combusting light petroleum by utilizing air under pressure
US3329139A (en) Radiant heating apparatus
JPS5879657A (ja) 燃焼空気および燃料を加熱する方法および装置
US2275149A (en) Oil burner
US2204451A (en) Oil burner
US2541315A (en) Combustion chamber structure for fluid fuel burning air-heating furnaces
GB1378306A (en) Combustion apparatus
US2198485A (en) Hydrocarbon burner
NL9201558A (nl) Brander, in het bijzonder geschikt voor aan de wand bevestigde heetwaterketels.
US3713433A (en) Anti pollution heating system
US3241594A (en) Method and apparatus for vaporizing and burning fuel oil

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

AS Assignment

Owner name: INTERNATIONAL BURNER CORP., LTD.

Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL INDUSTRIES, LTD;REEL/FRAME:004447/0350

Effective date: 19711209

Owner name: INTERNATIONAL THERMAL RESEARCH LTD., 1311 VALMONT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTERNATIONAL BURNER CORP. LTD., A CORP. OF BRITISH COLUMBIA, CANADA;REEL/FRAME:004474/0534

Effective date: 19850806