US3308868A - Combination oil and gas burner construction - Google Patents

Combination oil and gas burner construction Download PDF

Info

Publication number
US3308868A
US3308868A US453354A US45335465A US3308868A US 3308868 A US3308868 A US 3308868A US 453354 A US453354 A US 453354A US 45335465 A US45335465 A US 45335465A US 3308868 A US3308868 A US 3308868A
Authority
US
United States
Prior art keywords
chamber
burner
air
fuel
liquid fuel
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
US453354A
Other languages
English (en)
Inventor
Reichhelm Robert
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.)
FATTIBENE ARTHUR T
REICHHELM JENIFER
COMBUSTION EFFICIENCY CORP
Original Assignee
COMBUSTION EFFICIENCY CORP
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 COMBUSTION EFFICIENCY CORP filed Critical COMBUSTION EFFICIENCY CORP
Priority to US453354A priority Critical patent/US3308868A/en
Priority to GB48823/65A priority patent/GB1075890A/en
Priority to DE1501803A priority patent/DE1501803C3/de
Priority to SE00877/66A priority patent/SE339732B/xx
Priority to ES0324284A priority patent/ES324284A1/es
Priority to NO162838A priority patent/NO121059B/no
Priority to NL666606029A priority patent/NL154821B/xx
Priority to DK229166AA priority patent/DK109719C/da
Priority to CH647266A priority patent/CH463675A/de
Priority to ES0334039A priority patent/ES334039A1/es
Application granted granted Critical
Publication of US3308868A publication Critical patent/US3308868A/en
Assigned to REICHHELM, JENIFER,, FATTIBENE, ARTHUR T., reassignment REICHHELM, JENIFER, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HED INDUSTRIES, INC.
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
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • 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
    • F23C2700/026—Combustion apparatus using liquid fuel with pre-vaporising means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • This invention relates to a burner construction and more particularly to a burner capable of effectively burning either a liquid and/or a gas fuel. More specifically this invention is directed to a burner construction arranged to gasify a liquid fuel prior to burning the same so as to effect a more complete and efficient combustion of such liquid fuel and/ or wherein a gaseous fuel may be burned either in combination with the gasified liquid fuel or separately as an alternate fuel through the same burner tip.
  • an object of this invention to provide a burner constructed and arranged to effect complete gasification of the liquid fuel prior to burning of the same so that the eificiency and completeness of combustion is comparable to that of a gas burner.
  • Another object of this invention is to provide the burner construction in which the liquid fuel is transformed into a substantially gaseous state at a position remote from the burner tip by preheated combustion air and which fuel in its gaseous state is intimately mixed therewith to form a combustible gaseous mixture which is subsequently consumed at the burner tip.
  • Another object of this invention is to provide a combination gas and oil burner that is relatively simple in construction, relatively inexpensive to fabricate, and positive in operation.
  • Another object of this invention is to utilize the improved burner construction of this invention for space heater application.
  • Another object of this invention is to provide a combination gas and/or oil fired space heater having a mantle construction having integrally formed therein an air preheater by which the combustion air is preheated prior to the mixing thereof with the liquid fuel.
  • Another object of this invention is to provide a combination gas and/ or oil burner having a burner tip or nozzle common to the burning of either a liquid or gaseous fuel, either separately and/or in combination.
  • a burner construction which comprises a means defining a gasifying chamber remotely disposed to the burner nozzle of the burner.
  • An air preheater is provided for preheating the air necessary for combustion.
  • the air preheater is proportioned so that combustion air flowing therethrough is preheated to a temperature which is greater than that of the vaporizing temperature of fuel being consumed, but less than the cracking temperature of such fuel.
  • the arrangement is such that the preheated combustion air is introduced into the gasifying chamber wherein it is permitted to intimately mix with the liquid fuel being introduced therein, the heat of the preheated combustion air being utilized to transform the liquid fuel into its gaseous state.
  • the combustible mixture thus formed is directed to the burner nozzle where it is ignited.
  • a means for supplying a gaseous fuel to the gasifying chamber. Accordingly, either a gas and/or a liquid fuel may be supplied to the gasifying chamber, from whence the respective fuels in their re- .pective gaseous state are then directed to the burner so hat each of the fuels may be burned either separately md/ or in combination through the same burner tip. In his manner, the tip of the burner is adequately cooled Jy the flow fuel mixture flowing therethrough regardless )f which type of fuel being burned.
  • the air preie'ater comprises a heat exchanger constructed with a flexble corrugated surface circumscribing the burner tip in teat transfer relationship thereto.
  • the arrangement is iuch that all the air necessary to effect the gasification of he liquid fuel and to render it a combustible mixture is firected through the air heater and into the gasifying cham- Jer.
  • the velocity of the air s maintained at a point sufficient to prohibit flash-back :herethrough.
  • the preheater for the :ombustion air comprises a heat exchanger of annulus form made of ceramic or other heat resistant material which is disposed in heat transfer relationship with respect to the burner tip.
  • a heat exchanger of annulus form made of ceramic or other heat resistant material which is disposed in heat transfer relationship with respect to the burner tip.
  • ;he annulus is so formed so that all the air necessary for :ombustion is preheated prior to the intermingling thereof with the liquid fuel.
  • the means for effecting preheating of the combustion air comprises a cylindrical annulus which is ada-ped to circumscribe the burner nozzle and which annulus is disposed within a combustion chamber of a furnace or the like.
  • the cylindrical annulus is provided with an inlet and outlet to permit the air heated therein to circulate therethrough.
  • the outlet of the annulus is connected to a pair of branch lines, one of which is arranged to direct a portion of the preheated air to the gasifying chamber and the other line being arranged to direct the remaining portion of the preheated air to the burner nozzle.
  • Valve means are interposed in the respective branch lines to effect the desired proportioning of the preheated combustion air to either the gasifying chamber and/ or to the burner nozzle.
  • a heater means for effecting initial gasification of the liquid fuel is provided in the gasifying chambers of the respective burner modifications to effect the initial gasification of the liquid fuel on start-up of the burner. Consequently, once the burner has been placed in operation, the use of the heater means is no longer required; the continued gasification of the liquid fuel being affected by the circulation of preheated combustion air through the gasifying chamber during the operation of the burner.
  • an igniter means is disposed within the gasifying chamber.
  • the arrangement and operation of the igniter is such that it is periodically energized to ignite any accumulation of residue within the gasifying chamber. Accordingly, the periodic scavenging of the gasifying chamber by igniting of the residue therein maintains the gasifying chamber free of accumulating residue throughout the operating life of the burner.
  • the concepts disclosed herein are utilized in a space heater application in which the mantle for radiating the heat is specifically constructed and arranged to incorporate therein the air heating means by which the combustion air necessary to effect gasification of the liquid fuel is heated.
  • a feature of this invention resides in a burner construction in which relatively -low grade fuel oils may be efficiently burned by gasification of the same in a gasifying chamber prior to burning and which chamber is provided with means for periodic scavenging the same of any accumulating residue so as to maintain it in a relatively clean state throughout the operating life of the burner.
  • Another feature of this invention resides in the provision of a combination gas and -oil burner in which either gas and/ or oil is burned through the same burner tip or nozzle.
  • FIGURE 1 is a perspective view of a combination gas and oil burner utilizing the concepts of the instant invention.
  • FIGURE 2 is an enlarged detailed sectional view of the burner tip utilized in the construction of the burner disclosed in FIGURE 1.
  • FIGURE 3 is a partial top view of the burner tip of FIGURE 2.
  • FIGURE 4 is a vertical section view illustrating a modified form of the invention.
  • FIGURE 5 is a top plan view of the air preheating means utilized in construction of the burner illustrated in FIGURE 4.
  • FIGURE 6 illustrates another modified burner arrangement in accordance with this invention.
  • FIGURE 7 is a sectional view taken along line 77 on FIGURE 6.
  • FIGURE 8 is a detailed side elevation view of FIG- URE 7 having parts thereof shown in section.
  • FIGURE 9 is a modified form of the invention utilized in a space heater application.
  • FIGURE 10 is a elevation view of the mantle construction which is adapted to be utilized in conjunction with the burner arrangements disclosed in FIGURES 1 and 4 to transform the same into a space type heater.
  • the burner construction 20 comprises a means defining a gasifying chamber or compartment 21 which is remotely disposed from the burner or burner nozzle 22.
  • the gasifying chamber 21 is defined by :a bottom wall 23 having a connected circumscribing sidewall 24 preferably formed of a suitable refractory or heat resistant type of material to prevent any heat loss therethrough.
  • the top of the chamber 21 thus defined is closed by a suitable cover plate 25.
  • liquid fuel supply conduit 26 is connected in communication with the interior of the gasifying chamber 21.
  • a suitable control valve 27 may be interposed into the liquid fuel conduit or line 2-6 to control the flow of liquid fuel to the gasifying chamber.
  • a combustion chamber or burner pot 28 Spaced above the gasifying chamber is a combustion chamber or burner pot 28.
  • a burner nozzle or tip 22 is supported on the end of a fuel pipe 29 within the combustion chamber or burner pot, the inlet end of the fuel pipe being connected in communication with the gasifying chamber 21.
  • the burner tip 22 comprises a spud 22A provided with a tapped opening 30 by which it may be suitably secured to the upper end of a fuel supply pipe 29.
  • the burner tip or spud 22A is provided with a distribution chamber 31 which connects into communication with a plurality of radially extending passageways 32 that tenninate in a port or opening 33 formed along the sidewalls of the burner tip.
  • the sidewalls of the burner tip 22A incline upwardly and outwardly.
  • a plurality of burner ports 33 are circumferentially spaced intermediate the height of the sidewall of the spud 22A.
  • the electro means or igniter 34 Disposed immediately above and adjacent the burner tip 22A there are provided the electro means or igniter 34 whereby the ignition of the fuel may be attained.
  • a means for preheating combustion air is provided, the heat of such air being utilized to effect gasification of the liquid fuel in chamber 21.
  • the preheater 35 is disposed in heat transfer relationship to the'burner tip 22A.
  • the preheater comprises a flexible conduit or the like provrded with corrugated heat transfer surface that circumscribes the burner tip 22A.
  • One end 35A of the conduit is adapted to connect up to a source of combustion air, e.g. a force draft fan or blower 36 by which the necessary combustion air at ambient air temperature is supplied to the inlet of the air preheater 35.
  • the other or discharge end 35B of the preheater is connected into communication with the gasifying chamber 21. Accordingly, it is to be noted that all the air necessary for combustion of the liquid fuel is directed through the preheater 35 and into the gasifying chamber.
  • the temperature of the air flowing through the preheater may be determined by maintaining the ratio of the heat exchange surface of the preheater 35 to ambient air temperature sufiicient to heat the air flowing therethrough to a range of 600 F. to 900 F.
  • the temperature of the air thus preheated is greater than the vaporizing temperature of the liquid fuel oil, but less than the cracking temperature of such fuel.
  • the preheated air ranging between 600 F. and 900 F is thus intimately mixed with the liquid fuel within the gasifying chamber 21 and the heat of the air is utilized to effect a transformation of the liquid fuel from its liquid to its gaseous state.
  • a combustible gaseous fuel and air mixture is attained within the chamber.
  • the blower is operated so that the velocity of the air through the gasifying chamber is maintained at a rate to prohibit flashback. Accordingly, the combustible mixture is delivered from the gasifying chamber 21 to the burner tip 22A through a supply conduit or pipe 29 and from which the mixture is distributed to the respective burner ports 33.
  • the gasifying chamber has disposed therein a heater 37 preferably an electric band or cartridge type heater.
  • a band type heater 37 is connected to an external source of electrical energy 38.
  • the energization of the heater will raise the temperature in the chamber sufficiently high to effect gasification of the fuel.
  • thermostatic switch 40 which is arranged to assure the maintenance of the temperature within the chamber 21 between the 600 F. and 900 F. during burner operation, by effecting inter mittent energization of the heater 37 when the tempera ture falls below 600 F. in the chamber. Once the operation of the burner has commenced, then the operation of the band heater 37 may be discontinued. However, if desired, the switch closing the circuit to the band heater may be maintained in its closed position as the thermostat 40 wired into the circuit will automatically cycle the band heater 37 into and out of operation to assure continued gasification of the liquid fuel in a temperature range between 600 F. to 900 F. It will be, of course, understood that suitable controls may be connected into the supply line 26 of the liquid fuel so that the amount or the proportioning of the liquid fuel can be regulated in accordance with the demands being made upon the burner 20.
  • an igniter means 41 in the form of a glow plug, an electrode, spark plug, or the like is disposed within the chamber 21.
  • the igniter or glow plug 41 is connected into a suitable circuit by which the igniter or glow plug 41 may be intermittently operated at periodic intervals to effect or provide for a controlled combustion to occur directly in the gasifying chamber.
  • the burner construction 20 described may be readily converted into a combination gas and oil burner by connecting to the burner a gas supply pipe 42.
  • the gas supply conduit 42 is connected directly into the chamber 21.
  • a suitable valve 43 may be interposed in the gas line 42 so as to control the flow of gaseous fuel tochamber 21. Therefore, with the arrangement described either a gas and/or oil may be burned, either separately and/or in combination. Accordingly, it is to be noted that the arrangement described provides that the same burner tip 22A can be utilized for burning either the liquid gasified fuel and/or gas fuel, separately and/or in combination. As a result a separate and distinct burner spud or nozzle is not necessary for burning the respective fuels, as heretofore required.
  • FIGURES 4 and 5 illustrate a slightly modified form of the invention.
  • the construction and operation of the burner arrangement 50 disclosed therein is substantially similar to that described with reference to FIGURES 1 to 3 with the exception that the construction of the air preheating means 51 is slightly modified from that hereinbefore described.
  • the air preheater means 51 comprises an integrally formed annular chamber 52 formed of a refractory or other suitable heat resistent material.
  • the annular preheater chamber 52 is defined by a substantially cylindrical outer wall 53 circumscri-bing a bottom wall 54; the bottom wall 54 being provided with a central opening 55 through which there is extended the fuel pipe 56.
  • the inner wall 57 of the annular chamber 52 is upwardly and outwardly inclined in a stepped manner to form a plurality of concentrically disposed shoulders or steps 58.
  • a partition wall or baffle 59 extends between the inner and outer wall means 53, 57 to define an internal barrier.
  • the chamber 52 so formed is provided with a pair of nipples, one disposed on either side of the partition. Accordingly, one nipple 60 defines an inlet to the chamber 53 and the other nipple 6-1 defines the outlet of the annular chamber described.
  • a combustion air supply line is connected to the inlet nipple 60, and the discharge nipple 61 is connected by a conduit 62 in communication wit-h the gasifying chamber 63.
  • the air heater chamber 52 is disposed in heat transfer relationship to the burner tip 64 so that the air flowing through the chamber 52 is preheated in a manner as hereinbefore described. Accordingly, the operation and construction of the burner of FIGURES 4 and 5 is similar to that described with respect to FIGURE 1.
  • the burner construction of FIGURES l and 4 may be transformed into a space heater by incorporating therewith a mantle construction 65 as shown in FIG- URE 10.
  • This mantle 65 is formed of Inconel mesh which becomes incandescent and thus radiates heat therefrom when placed in heat exchange relationship to the burner tip 64.
  • FIGURES 6, 7, and 8 illustrate a further modified form of the invention.
  • the burner 70 is utilized in conjunction with a furnace or combustion chamber 71.
  • the gasifying chamber 72 is remotely disposed to the exterior of the combustion chamber of furnace 71.
  • the gasifying chamber 72 comprises an enclosure in which there is provided with a heating band 73 as hereinbefore described.
  • Fuel is supplied therethrough by an oil line 74 and a gas line 75.
  • the gasification chamber 72 is provided with an igniter 76 of the type herein described, and which is adapted for intermittent operation in the event that relatively low grade fuel oils are being gasified in the chamber to effect the cont-r01 combustion necessary to scavenge the gasifying chamber 72 at periodic intervals, as described.
  • a burner nozzle 77 is connected in communication with the gasifying chamber by means of the fuel pipe 78 through which the combustible mixture is supplied from the gasifying chamber 72 to the burner nozzle 77.
  • the air preheating means 79 in the form of a cylindrically shaped annular chamber 80 is spaced about the tip end 81 of the burner nozzle 77 and disposed within the furnace chamber.
  • the cylindrical annular chamber is preferably formed of a heat resistent material, as for example a suitable high temperature refractory and forms a burner or flame throat.
  • the annular chamber is closed at each end by end walls 82, 83 and between each end wall 82, 83 there is extended, longitudinally, a partitioned wall 84 to define the inlet portion of the annulus from the outlet portion thereof. Disposed to either side of the partition 84 is an inlet 85 and outlet opening 86 which are respectively connected to a suitable conduit means through which combustion air is introduced into and out of the annulus 80 during burner operation.
  • the discharge conduit 87 through which the preheated air is discharged has connected to its outer end a T connection 88.
  • a branch line 89 that connects to the gasifying chamber 72.
  • the other end .of the T connection 88 is connected by a suitable branch or line 90 that connects to the inlet of the burner nozzle 77.
  • suitable valves 89A, 90A are disposed at each of the branch lines 89, 90 to control and proportion the amount of preheated air directed either to the gasifying chamber 72 and/or to the inlet of the burner nozzle 77.
  • a glow plug or igniter 91 may also be disposed in the gasifying chamber 72 so as to effect control combustion therein in the event that relatively low grade fuels are being consumed.
  • the operation and function of the burner construction of FIGURE 6 is similar to that hereinbefore described.
  • FIGURE 9 illustrates another burner 100 modification in which the concept is applied to a space heater.
  • the base 101 of the burner 100 of FIGURE 9 is constructed to define a gasifying chamber 102 as hereinbefore described.
  • the gasifying chamber 102 also is provided with a band heater 101A to effect gasification of the liquid fuel upon start-up of the burner as hereinbefore described.
  • an igniter or glow plug 103 to affect periodic scavenging of the gasifying chamber 102 in the event that a relatively low grade fuel oil is being consumed.
  • the burner nozzle 104 Connected in communication with the gasifying chamber 102 is the burner nozzle 104.
  • an incandescent mantle 105 is supported on the base portion 101 of the burner.
  • the mantle 105 has incorporated therein a pair of vertically spaced annular conduits 106 and 107 circumscribing the mantle and which are inter-connected by a plurality of upright interconnecting conduits 108. Accordingly, the combustion air is introduced into the upper annular conduit 106 by means of a supply conduit 109 which connects to a source of air supply not shown. The air is then distributed from the inlet annular conduit 106 through the respective interconnecting conduits 108 to the lower annular conduit 107.
  • the lower annular conduit 107 in turn is connected into open communication with the gasifying chamber 102. Accordingly, the air heated to a temperature, as hereinbefore described, is intimately mixed with the liquid fuel being introduced through an appropriate supply conduit 110 into the gasifying chamber 102, the heat of the air effecting gasification of the liquid fuel. The combustible mixture thus formed is then supplied to the burner nozzle 104 through the fuel pipe 111.
  • gas may be used as an alternate fuel and it is supplied to the chamber by a supply conduit 112.
  • a combination gas and oil burner comprising:
  • (c1)J means for introducing a liquid fuel into said cham- (d) a burner head
  • said air preheating means having an outlet end connected in communication with said chamber whereby said air heated therein is directed to said chamber and utilized to gasify said liquid fuel so that the latter is intimately mixed with said heated air to form a combustible mixture
  • a combination gas and oil burner comprising:
  • conduit means connecting said burner head in communication with said chamber
  • said preheating means comprising a preheating corrugated conduit encircling said burner head in spaced relationship thereto, said conduit having a ratio of heat exchange surface to air temperature suflicient to preheat said air to a temperature ranging between 600 F. to 900 F.,
  • said preheating conduit having an outlet end connected in communication with said chamber whereby said heated air entering said chamber is utilized to gasify said liquid fuel during burner operation, said preheated air being intimately mixed with said fuel in said chamber to form a combustible mixture
  • (k) means for controlling the flow of said respective fuels to said chamber to proportion the flow of said respective fuels thereto.
  • An oil burner capable of burning relatively low grade oils comprising:
  • (:b) means defining a gasifying chamber
  • said preheater means having an outlet connected in communication with said chamber whereby the heated air flowing therethrough is directed to said chamber
  • a combination gas and oil burner comprising:
  • said preheater means having an outlet connected in communication with said chamber whereby the heated air flowing therethrough is directed to said chamber
  • a combination gas and oil burner comprising:
  • said air preheater having a heat exchange surface to air temperature ratio sufficient to maintain said heated air at a temperature ranging between 600 F to 900 F.
  • said preheater having an outlet connected in communication with said gasifying chamber so that all the air heated flowing therethrough is directed to said chamber
  • (h) means supplying a liquid fuel into said chamber whereby the mixture of said liquid fuel with said heated air effects gasification of the liquid fuel and intricate mixing of the same with said air to form a combustible mixture
  • burner tip comprises:
  • annulus having a substantially cylindrical outer wall portion, and a stepped inner wall portion, (c) said inner wall being stepped upwardly and out wardly toward said outer wall,
  • a combination oil and gas burning space heater comprising:
  • a preheater including a pair of circumscn'bing conduits vertically spaced about said mantel in heat transfer relationship thereto,
  • a combination oil and gas burning space heater comprising:
  • (j) means to supplying combustion air to said second annulus conduit whereby said air is circulated to said conduits and introduced into said chamber to mix with and gasify the liquid fuel introduced into said chamber to form a combustible mixture
  • an igniter disposed in said chamber, said igniter being intermittently operated to periodically scavenge said chamber.
  • a combination oil and gas burning space heater comprising (a) a base defining a gasifying chamber,
  • a space heater comprising:
  • a combination oil and gas burner comprising:
  • said latter means including a tubular annulus dis:
  • a combination oil and gas burner comprising:
  • said latter means including a flexible corrugated tubular member disposed about said burner tip within said combustion chamber,
  • thermostatic means for controlling the temperature 13 within said compartment between 600 F. and 900 F.
  • said igniter being intermittently operated to periodically scavenge said compartment when low grade fuel oils are being burned
  • An oil burner capable of burning relatively low grade oils comprising:
  • said preheater means having an outlet connected in communication with said chamber whereby the heated air flowing therethrough is directed to said chamber
US453354A 1965-05-05 1965-05-05 Combination oil and gas burner construction Expired - Lifetime US3308868A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US453354A US3308868A (en) 1965-05-05 1965-05-05 Combination oil and gas burner construction
GB48823/65A GB1075890A (en) 1965-05-05 1965-11-17 Improved burner construction
DE1501803A DE1501803C3 (de) 1965-05-05 1966-01-19 Brenner für minderwertigen, flüssigen Brennstoff
SE00877/66A SE339732B (no) 1965-05-05 1966-01-24
ES0324284A ES324284A1 (es) 1965-05-05 1966-03-16 Quemador combinado para gas y petroleo.
NO162838A NO121059B (no) 1965-05-05 1966-05-03
NL666606029A NL154821B (nl) 1965-05-05 1966-05-04 Verbrandingsinrichting.
DK229166AA DK109719C (da) 1965-05-05 1966-05-04 Brænder for olie eller gas.
CH647266A CH463675A (de) 1965-05-05 1966-05-04 Brenner
ES0334039A ES334039A1 (es) 1965-05-05 1966-12-01 Calentador para espacios.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453354A US3308868A (en) 1965-05-05 1965-05-05 Combination oil and gas burner construction

Publications (1)

Publication Number Publication Date
US3308868A true US3308868A (en) 1967-03-14

Family

ID=23800250

Family Applications (1)

Application Number Title Priority Date Filing Date
US453354A Expired - Lifetime US3308868A (en) 1965-05-05 1965-05-05 Combination oil and gas burner construction

Country Status (9)

Country Link
US (1) US3308868A (no)
CH (1) CH463675A (no)
DE (1) DE1501803C3 (no)
DK (1) DK109719C (no)
ES (2) ES324284A1 (no)
GB (1) GB1075890A (no)
NL (1) NL154821B (no)
NO (1) NO121059B (no)
SE (1) SE339732B (no)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345667A1 (fr) * 1976-03-26 1977-10-21 Pullman Inc Procede et appareil pour la vaporisation de fuel-oils
FR2442401A2 (fr) * 1975-05-21 1980-06-20 Zink Co John Procede d'utilisation d'un combustible liquide dans une installation destinee a bruler un combustible gazeux
US4408593A (en) * 1982-05-27 1983-10-11 Nippon Carbureter Co., Ltd. Liquid fuel combustion apparatus
US20070231759A1 (en) * 2006-04-04 2007-10-04 Power Well Services, L.P. Trailer mounted smokeless dual-phase burner system
US20070231758A1 (en) * 2006-04-04 2007-10-04 Power Well Services, L.P. Smokeless liquid dual-phase burner system
US20110165526A1 (en) * 2008-09-19 2011-07-07 Reinhard Schu External preheating of fresh air in solid material furnaces
EP2153042A4 (en) * 2007-05-25 2015-10-28 Tiax Llc FUEL COMBUSTION SYSTEM
WO2021062543A1 (en) * 2019-10-03 2021-04-08 General Ethanol Technologies Inc. Ethanol burner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1535815A (en) * 1924-10-02 1925-04-28 Walter T Cunningham Oil burner
US2735481A (en) * 1956-02-21 Reichhelm
US3238991A (en) * 1962-11-23 1966-03-08 Goldmann Otto Fuel oil gasification burner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735481A (en) * 1956-02-21 Reichhelm
US1535815A (en) * 1924-10-02 1925-04-28 Walter T Cunningham Oil burner
US3238991A (en) * 1962-11-23 1966-03-08 Goldmann Otto Fuel oil gasification burner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442401A2 (fr) * 1975-05-21 1980-06-20 Zink Co John Procede d'utilisation d'un combustible liquide dans une installation destinee a bruler un combustible gazeux
FR2345667A1 (fr) * 1976-03-26 1977-10-21 Pullman Inc Procede et appareil pour la vaporisation de fuel-oils
US4408593A (en) * 1982-05-27 1983-10-11 Nippon Carbureter Co., Ltd. Liquid fuel combustion apparatus
US20070231759A1 (en) * 2006-04-04 2007-10-04 Power Well Services, L.P. Trailer mounted smokeless dual-phase burner system
US20070231758A1 (en) * 2006-04-04 2007-10-04 Power Well Services, L.P. Smokeless liquid dual-phase burner system
US7677883B2 (en) 2006-04-04 2010-03-16 Expro Americas, Llc Trailer mounted smokeless dual-phase burner system
US7677882B2 (en) * 2006-04-04 2010-03-16 Expro Americas, Llc Smokeless liquid dual-phase burner system
EP2153042A4 (en) * 2007-05-25 2015-10-28 Tiax Llc FUEL COMBUSTION SYSTEM
US20110165526A1 (en) * 2008-09-19 2011-07-07 Reinhard Schu External preheating of fresh air in solid material furnaces
WO2021062543A1 (en) * 2019-10-03 2021-04-08 General Ethanol Technologies Inc. Ethanol burner

Also Published As

Publication number Publication date
NL6606029A (no) 1966-11-07
DE1501803A1 (de) 1969-11-20
DK109719C (da) 1968-06-17
ES324284A1 (es) 1967-03-16
NO121059B (no) 1971-01-11
CH463675A (de) 1968-10-15
GB1075890A (en) 1967-07-12
DE1501803C3 (de) 1982-08-19
ES334039A1 (es) 1967-11-01
DE1501803B2 (de) 1982-01-07
SE339732B (no) 1971-10-18
NL154821B (nl) 1977-10-17

Similar Documents

Publication Publication Date Title
NO162838B (no) Multippel-aksess kommunikasjons-system.
US3308868A (en) Combination oil and gas burner construction
US2065265A (en) Oil burner
US370251A (en) Half to edward b
US2355416A (en) Oil pilot with supplemental air supply
US1933044A (en) Apparatus for burning o
US2240861A (en) Oil burner construction
US1574545A (en) Oil heater
US1816110A (en) Heater for boilers of the vertical type
US2316226A (en) Oil burning apparatus
US1385509A (en) Gas-burner
US2368356A (en) Oil burner
US2038522A (en) Burner construction
US3351042A (en) Heater
US2452924A (en) Pot burner having segmental air directing means
US2134297A (en) Oil burning appliance
US2065264A (en) Burner
US1592120A (en) Carburetor burner
US1441008A (en) Liquid-fuel burner
US1048310A (en) Oil-burner.
US2964101A (en) Oil burner and means of controlling the combustion of fuel oil therein
US1458266A (en) Liquid-fuel-burning appliance
US2408865A (en) Oil burner
US2473653A (en) Oil burner having air admission and fuel vaporization means
US436656A (en) Gas-stove

Legal Events

Date Code Title Description
AS Assignment

Owner name: FATTIBENE, ARTHUR T., FAIRFIELD, CT.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HED INDUSTRIES, INC.;REEL/FRAME:003832/0828

Effective date: 19801231

Owner name: REICHHELM, JENIFER, WALLINGFORD, CT.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HED INDUSTRIES, INC.;REEL/FRAME:003832/0828

Effective date: 19801231