US2105546A - Flame cone or diffuser - Google Patents
Flame cone or diffuser Download PDFInfo
- Publication number
- US2105546A US2105546A US121409A US12140937A US2105546A US 2105546 A US2105546 A US 2105546A US 121409 A US121409 A US 121409A US 12140937 A US12140937 A US 12140937A US 2105546 A US2105546 A US 2105546A
- Authority
- US
- United States
- Prior art keywords
- cone
- diffuser
- air
- flame
- flame cone
- 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
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Classifications
-
- 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
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/408—Flow influencing devices in the air tube
Definitions
- my present invention has for its object the provision of means, in the cone structure, whereby air admitted through the cone slots will scour or sweep the inner surface of the cone wall and thereby positively prevent carbon formation.
- the cone wall is formed in a series of jogs or flutes which have the effect 'of collecting air flowing over its outer surface, and slots are provided in the webs created by the flutes, said slots admitting and giving definite direction to the collected air, causing the current thereof to scour the inner surface of the cone and thus keep the latter free from carbon.
- Figure l is a side view, partly in section, of a flame cone as attached to the rearward end portion of a burner tube casing.
- Fig. 2 is a front view thereof, on the line 2-2 of Fig. 1, and
- Fig. 3 is an enlarged detail section on the line 3-3 of Fi 2.
- the wall of the flame cone is composed of a succession of tangential vanes 6 which are all equally 5 angled circumferentially and connected one with another by means of webs 1, whose faces constitute each an inclined shoulder between the respective outer surfaces of adjacent vanes.
- These Webs l are each provided with a slot 8 10 for the flow of air into the cone interior, there to mingle with and permit combustion of the atomized fuel that issues from the burner nozzle. Also these slots enable the air flowing therethrough to sweep over and scour the inner surfaces of vanes B and thus to prevent the formation of carbon deposits on the cone interior.
- An air directing cone for liquid fuel burners whose wall comprises a succession of circumferentially equally angled vanes, the lateral boundaries thereof being defined by lines tangential to a cylinder coaxial with said cone, and webs connecting said vanes and arranged substantially at right angles to the surfaces of said vanes, each web having a slot which extends therethrough at an acute angle to the inner surface of an adjacent vane whereby air flowingthrough each slot is directed in scouring relation onto and across the inner surface of said adjacent vane.
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- 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)
Description
Jan. 18, 1938. J. McDONALD FLAME CONE OR DIFFUSER Filed Jan. 21, 1957 INVENT 1Z A'r'roRN EY.
UNITED STATES bxamme-l PATENT OFFICE FLAME CONE OR DIFFUSER James McDonald, Weehawken, N. J., assignor to Todd Combustion Equipment, Inc., New York, N. Y., a. corporation of New York Application January 21, 1937, Serial No. 121,409
1 Claim.
With liquid fuel burners employing mechanical pressure atomizers of the Todd type it is customary to employ a flame cone located about the burner nozzle to serve as an air diffuser to obtain ignition of the fuel spray at the burner nozzle. Such flame cones or diffusers have previously been provided with slots through their walls for the purpose of admitting air into the cone for admixture with the atomized fuel passing therethrough.
The air admission slots heretofore employed have failed however to perform one necessary function, viz: that of preventing the formation of carbon on the inner face of the cone.
Therefore my present invention has for its object the provision of means, in the cone structure, whereby air admitted through the cone slots will scour or sweep the inner surface of the cone wall and thereby positively prevent carbon formation.
To this end the cone wall is formed in a series of jogs or flutes which have the effect 'of collecting air flowing over its outer surface, and slots are provided in the webs created by the flutes, said slots admitting and giving definite direction to the collected air, causing the current thereof to scour the inner surface of the cone and thus keep the latter free from carbon.
Other features and advantages of my invention will hereinafter appear.
In the drawing:
Figure l is a side view, partly in section, of a flame cone as attached to the rearward end portion of a burner tube casing.
Fig. 2 is a front view thereof, on the line 2-2 of Fig. 1, and
Fig. 3 is an enlarged detail section on the line 3-3 of Fi 2.
In said views let I indicate the rearward portion of a burner tube, 2 the casing therefor having flange 3, and 4 my improved flame cone, which latter is shown attached by means of its flange 5 to flange 3.
The wall of the flame cone is composed of a succession of tangential vanes 6 which are all equally 5 angled circumferentially and connected one with another by means of webs 1, whose faces constitute each an inclined shoulder between the respective outer surfaces of adjacent vanes.
These Webs l are each provided with a slot 8 10 for the flow of air into the cone interior, there to mingle with and permit combustion of the atomized fuel that issues from the burner nozzle. Also these slots enable the air flowing therethrough to sweep over and scour the inner surfaces of vanes B and thus to prevent the formation of carbon deposits on the cone interior.
In practice the pressure of air encountered by the outer surface of the cone is caught by the webs and released with increased velocity through the slots, thereby efliciently sweeping the inner surfaces of the vanes to keep them clean.
Variations within the spirit and scope of my invention are equally comprehended by the foregoing disclosure.
I claim:-
An air directing cone for liquid fuel burners whose wall comprises a succession of circumferentially equally angled vanes, the lateral boundaries thereof being defined by lines tangential to a cylinder coaxial with said cone, and webs connecting said vanes and arranged substantially at right angles to the surfaces of said vanes, each web having a slot which extends therethrough at an acute angle to the inner surface of an adjacent vane whereby air flowingthrough each slot is directed in scouring relation onto and across the inner surface of said adjacent vane.
JAMES MCDONALD.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US121409A US2105546A (en) | 1937-01-21 | 1937-01-21 | Flame cone or diffuser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US121409A US2105546A (en) | 1937-01-21 | 1937-01-21 | Flame cone or diffuser |
Publications (1)
Publication Number | Publication Date |
---|---|
US2105546A true US2105546A (en) | 1938-01-18 |
Family
ID=22396529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US121409A Expired - Lifetime US2105546A (en) | 1937-01-21 | 1937-01-21 | Flame cone or diffuser |
Country Status (1)
Country | Link |
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US (1) | US2105546A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633908A (en) * | 1947-01-24 | 1953-04-07 | Ralph C Brierly | Diffuser |
US3737281A (en) * | 1971-09-27 | 1973-06-05 | C Guth | Fuel mixing shroud for heating torches |
US4479775A (en) * | 1981-12-04 | 1984-10-30 | Sivan Development And Implementation Of Technological Systems Ltd. | Vane structure burner for improved air-fuel combustion |
WO2000061992A1 (en) * | 1999-04-09 | 2000-10-19 | Mcdermott Technology, Inc. | Tunneled multi-blade swirler/gas injector for a burner |
WO2008055497A1 (en) * | 2006-11-09 | 2008-05-15 | Fire Green Aps | Apparatus for the combustion of various types of oil |
-
1937
- 1937-01-21 US US121409A patent/US2105546A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633908A (en) * | 1947-01-24 | 1953-04-07 | Ralph C Brierly | Diffuser |
US3737281A (en) * | 1971-09-27 | 1973-06-05 | C Guth | Fuel mixing shroud for heating torches |
US4479775A (en) * | 1981-12-04 | 1984-10-30 | Sivan Development And Implementation Of Technological Systems Ltd. | Vane structure burner for improved air-fuel combustion |
FR2594212A1 (en) * | 1981-12-04 | 1987-08-14 | Sivan Dev Implem Technol | BURNER FOR THE COMBUSTION OF A COMBUSTIBLE / AIR MIXTURE, COMPRISING A PLURALITY OF FINS THAT EXTEND IN THE DIRECTION OF THE MIXING FLOW SPINDLE |
WO2000061992A1 (en) * | 1999-04-09 | 2000-10-19 | Mcdermott Technology, Inc. | Tunneled multi-blade swirler/gas injector for a burner |
WO2008055497A1 (en) * | 2006-11-09 | 2008-05-15 | Fire Green Aps | Apparatus for the combustion of various types of oil |
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