CA1036925A - Fuel atomizer - Google Patents
Fuel atomizerInfo
- Publication number
- CA1036925A CA1036925A CA236,345A CA236345A CA1036925A CA 1036925 A CA1036925 A CA 1036925A CA 236345 A CA236345 A CA 236345A CA 1036925 A CA1036925 A CA 1036925A
- Authority
- CA
- Canada
- Prior art keywords
- passageway
- deflector
- liquid fuel
- end cap
- fuel 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
Links
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
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
- F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber
Abstract
FUEL ATOMIZER
ABSTRACT OF THE DISCLOSURE
An improved burner for use with sediment containing liquid fuel and including an atomizer having plate means for promoting fuel flow prior the atomization thereof.
ABSTRACT OF THE DISCLOSURE
An improved burner for use with sediment containing liquid fuel and including an atomizer having plate means for promoting fuel flow prior the atomization thereof.
Description
Cas~ l~0?2 103~ 25 BACKG~OlJrlD 0~ THE T~ r~TTor~
The invention relates to fuel burners, and more particularly to a llquid fuel burner equipped with an atomizer capable of vapor ato~izing sediment containing liquid fuels without pluggage o~ ~he fuel passages.
Fluid assist atomizers have been successfully used for some time. For example, U.S. Patent No. 3,650,476, issued on March 21, 1972 in the name of Rackley et al and assigned to the assignee of the present invention, dis-closes an atomizer having three stages of atomization Thefirst stage occurs as the fuel stream is sheared by high velocity vapor, the second is the impingement and redirect-ing of the fluid mixture discharging from the first stage, and the third stage takes place as the fluid mixture is expanded while passing through the burner discharge ports.
The first stage of atomization for the burner dis-closed in U.S. Patent No. 3,650,476 includes a plurality of radial ports which divide the liquid fuel into individual ; streams to be sheared by the atomizing vapor. In order to obtain maximum shearing effect, the ports lie normal to the fuel and vapor inlet passages. Use of this type atomizer with sediment containing fuels such as refinery pitch, tar, asphalt, etc. is proving less than satisfactory due to frequent pluggages occuring at the point where the fuel flow path turns 90 as it enters the radial ports. This change in direction causes the heavier particles in the fuel to settle in the forward end of the fuel passage and results in eventual blockage of the radial ports.
. . ~
, 7 ;, -1-Case l~o~c~
1036C~25 SU~i~A~Y OF 'i-~, T,l','E~ITTOl~l The present invention provides a liquid fuel burner for use with sediment containing fuels and includ-lng an i~,proved atomizer comprising a cyllndrical member having a first passage~lay means in the form of a center bore for fuel flow and a second passageway means in the form of a plurality of conduits for atomizing vapor flow, the latter being orbitally disposed about the center bore.
The atomizer is fitted with a perforated er.d cap for dis-charging atomized fuel from the burner, and includes a pair of orifice plates interposed between the cylindrical member -~ and the end cap.
In accordance with the invention, the atomizer includes a deflector having plate means cooperating with the cylindrical member to define therebetween an annular outlet for discharging fuel into the atomizing vapor exit-ing from the conduits. The plate means is of circular radial cross section and has a diameter slightly less than the diameter of the inner circle formed by the orbitally dlsposed conduits so as not to interfere with the atomizing vapor exiting from the conduits. The plate means surface which defines one side of the annular outlet is of arcuate configuration and projects into the center bore to guide and promote the flow of fuel as it turns 90 on its way to being discharged from the first passageway means. The deflector includes a shank extending from the plate means and having its distal end projecting through the atomizer end cap and being supported therefrom. The shank is rotatably engaged with the end cap to permit axial ad~ust-3 ment of the deflector thereby providing the means forchanging the cross sectional flow area of the annular out-let to optimlze the discharge of a particular fuel.
The invention relates to fuel burners, and more particularly to a llquid fuel burner equipped with an atomizer capable of vapor ato~izing sediment containing liquid fuels without pluggage o~ ~he fuel passages.
Fluid assist atomizers have been successfully used for some time. For example, U.S. Patent No. 3,650,476, issued on March 21, 1972 in the name of Rackley et al and assigned to the assignee of the present invention, dis-closes an atomizer having three stages of atomization Thefirst stage occurs as the fuel stream is sheared by high velocity vapor, the second is the impingement and redirect-ing of the fluid mixture discharging from the first stage, and the third stage takes place as the fluid mixture is expanded while passing through the burner discharge ports.
The first stage of atomization for the burner dis-closed in U.S. Patent No. 3,650,476 includes a plurality of radial ports which divide the liquid fuel into individual ; streams to be sheared by the atomizing vapor. In order to obtain maximum shearing effect, the ports lie normal to the fuel and vapor inlet passages. Use of this type atomizer with sediment containing fuels such as refinery pitch, tar, asphalt, etc. is proving less than satisfactory due to frequent pluggages occuring at the point where the fuel flow path turns 90 as it enters the radial ports. This change in direction causes the heavier particles in the fuel to settle in the forward end of the fuel passage and results in eventual blockage of the radial ports.
. . ~
, 7 ;, -1-Case l~o~c~
1036C~25 SU~i~A~Y OF 'i-~, T,l','E~ITTOl~l The present invention provides a liquid fuel burner for use with sediment containing fuels and includ-lng an i~,proved atomizer comprising a cyllndrical member having a first passage~lay means in the form of a center bore for fuel flow and a second passageway means in the form of a plurality of conduits for atomizing vapor flow, the latter being orbitally disposed about the center bore.
The atomizer is fitted with a perforated er.d cap for dis-charging atomized fuel from the burner, and includes a pair of orifice plates interposed between the cylindrical member -~ and the end cap.
In accordance with the invention, the atomizer includes a deflector having plate means cooperating with the cylindrical member to define therebetween an annular outlet for discharging fuel into the atomizing vapor exit-ing from the conduits. The plate means is of circular radial cross section and has a diameter slightly less than the diameter of the inner circle formed by the orbitally dlsposed conduits so as not to interfere with the atomizing vapor exiting from the conduits. The plate means surface which defines one side of the annular outlet is of arcuate configuration and projects into the center bore to guide and promote the flow of fuel as it turns 90 on its way to being discharged from the first passageway means. The deflector includes a shank extending from the plate means and having its distal end projecting through the atomizer end cap and being supported therefrom. The shank is rotatably engaged with the end cap to permit axial ad~ust-3 ment of the deflector thereby providing the means forchanging the cross sectional flow area of the annular out-let to optimlze the discharge of a particular fuel.
-2-;, c~se l~022 In the main embodi~.ent, the deflector shank is weldably securcd to the atGmizer end cap to maintain the posltion which has been determined as the opti~um annular outlet flow area for a particular fuel.
In an alternate embodirnent, the selected annular outlet flow area is being maintained by threading a lock-nut onto the shank and tightening against the atomizer end cap to secure the deflector thereto. Whenever an ad~ust-ment in the annular outlet flow area is required to accommodate a change in fuel or fuel characteristic, the locknut is loosened to allow repositioning of the deflector and is thereafter tightened to secure the deflector in the newly selected position.
BRIEF DESCRIPTION OF THE DRAWINGS
. '' , Figure 1 is a sectional side view of the liquid fuel burner including a main embodiment of the atomizer of the present invention.
Figure 2 is a sectional side view of an alternate embodiment of the present invention.
DESCRIPTlO~ OF THE PREFERRED EMBODIMENTS OF THE IN~N~ION
, Referring to Figures 1 and 2, there are shown a liquid fuel burner 10 comprising a barrel 12 threadably ~ engaged at one end thereofto a coupling 14 and at the J other end to a sleeve 16, the latter being in turn thread-ably engaged to a sprayer cap 18. The coupling 14 is pro-- vided with a peripheral passageway 20 which admits the llquld fuel to the burner 10. The passageway 20 discharges into a tube 24, the latter belng threadably engaged to an lnner wall portion of the coupling 14 and including
In an alternate embodirnent, the selected annular outlet flow area is being maintained by threading a lock-nut onto the shank and tightening against the atomizer end cap to secure the deflector thereto. Whenever an ad~ust-ment in the annular outlet flow area is required to accommodate a change in fuel or fuel characteristic, the locknut is loosened to allow repositioning of the deflector and is thereafter tightened to secure the deflector in the newly selected position.
BRIEF DESCRIPTION OF THE DRAWINGS
. '' , Figure 1 is a sectional side view of the liquid fuel burner including a main embodiment of the atomizer of the present invention.
Figure 2 is a sectional side view of an alternate embodiment of the present invention.
DESCRIPTlO~ OF THE PREFERRED EMBODIMENTS OF THE IN~N~ION
, Referring to Figures 1 and 2, there are shown a liquid fuel burner 10 comprising a barrel 12 threadably ~ engaged at one end thereofto a coupling 14 and at the J other end to a sleeve 16, the latter being in turn thread-ably engaged to a sprayer cap 18. The coupling 14 is pro-- vided with a peripheral passageway 20 which admits the llquld fuel to the burner 10. The passageway 20 discharges into a tube 24, the latter belng threadably engaged to an lnner wall portion of the coupling 14 and including
-3-Case 4022 ~ 0369Z5 a seal rine 25 ~/elded to the tube 24 and abutting against the penetrated il~er wall so as to maintain the tube 24 ln a fixed position and provide a leak-proof junction at the point of penetration. The tube 24, which defines a central passageway 26, extends through a major portion of the burner lO and includes a telescoped forward section 27 which engages a cylindrical member 30, the latter form-ing part of the atomizer 31 of the present invention.
The cou])ling 14 is provided with a central passage-way 22 which admits atomizing vapor to the burner 10 and. dis-: charges it into an annular passageway 28 formed by the tube 24 and the barrel 12 and a portion of coupling 14.
The cylindrical member 30 includes a center bore 32 extending therethrough and communicating with the central passageway 26, and a plurality of equispaced conduits 36 extending through the member 30 in parallel and spaced sur-rounding relation to the center bore 32, and communicating with the annular passageway 28.
The center bore 32 extend.s through the cylindrical member 30 in coaxial relation therewith and is comprised of an inlet segment 37 and an outlet segment 38, the two segments being joined by a uniformly convergent transition segment 40.
The inlet segment 37 is of uniform cross section throughout and is sized so as to slidably engage the forward end section 27 of tube 24. The outlet segment 38 has a smaller cross sectional diameter than the inlet segment 37 and has an in-wardly tapered leading end portion 41.
The conduits 36 are of equal dimension and of uniform cross section throughout. A pair of orifice plates 42 and 44 respectively are disposed adjacent the discharge end face 45 of cylindrical member 30. The orifice plates Cas~ 1~022 lV3U~2S
42 and 44 are formed with respectiv~ passa~eways 46 and 48 of frusto-conical confi~uratlon whose small ends abut one another and are formed ~Jith a straight edge so as to define a cylindrical passageway 49 i.ntermediate the two frusto-conical passageways 46 and 48.
The sprayer cap 18 is cGmprised of a cylindrical wall 50 open at one end, and closed at the other end. by a central wall 52 lying along a plane normal to the burner axis and a perforated inclined wall 54 disposed inter-mediate the walls 50 and 52. The cylindrical wall 50 isformed with an internal thread which engages complementary threads on the sleeve 16, and includes a shoulder that abuts the leading face of orifice plate 44 to ~aintain it and the orifice plate 42 in a fixed position. A chamber 56 is formed between the orifice plate 44 and the front end of the sprayer cap 18. The chamber 56 discharges through a plurality of openings 58 which extend through the wall 54 ~- in a direction normal thereto.
In accordance with theinvention, an atomizer 31 is provided with a deflector 60 having at one end. thereof a plate means 62 and at the other end a shank 64, the latter being supportingly connected to the atomizer end cap 18.
The plate means 62 includes a cylindrical segment 66 having an end face 68 formed with an arcuate surface projecting into the tapered bore portion 41 and cooperating therewith . and with the end face 45 of cylindrical member 30 to define therebetween an annular outlet 70. The segment 66 merges into a frusto-conical segment 72 which in turn merges into the shank 64, the latter being of cylindrical shape and 30 having a threaded portion 74 which rotatably engages comple-mentary threads formed along the opening 76 of the end cap ~sc ll02~
103~i9ZS
central wall 52. Thc threaded portion 7l~ has ~ predeter-mined le~gth to permit an ad~ustment in the position of deflector 60 along the burner ~xis thereby providing the means ~or changing the cross sectional ~low area of the annular outlet 70. The adjustment is e~fected by in-serting a screwdriver (not shown) in the slot 78, formed on the end face of shank 64, and rotating it in a clock-wise direction to reduce the flow area of the outlet 70, and in a counter-clockwise direction to increase the flow area of the outlet 70.
In accordance with the main embodiment of the invention, when the desired cross sectional flow area for the annular outlet 70 has been obtained, a weldment 80 is applied between the exposed end of shank 64 and the central wall 52 to fixedly secure the deflector 60 to the atomizer end cap 18.
In accordance with the alternate embodiment of the invention, a locknut 82 is threaded onto the exposed portion of the shank 64. When the desired cross sectional flow area for the annular outlet 70 has been obtained, a wrench (not shown) is applied to the locknut 82 to tighten it against the central wall 52 thereby securing the de-flector 60 to the atomizer end cap 18. If a change is re-quired in the cross sectional flow area of the outlet 70, the locknut is loosened to allow repositioning of the de-flector 60, and is thereafter tightened to secure the de-flector 6G in the newly selected position.
During operation of the burner 10, pressurized liquid fuel, e.g. oil, is continuously supplied to the coupling 14 for serial flow through the passageways 20 and ~, Case 4022 ~036925 26 and the center bore 32. At the same timc, atomized vapor, e.g. steam, is pressurized to a level higher than that of the fuel and is contimlously supplied to the coupling 14 for serial flow through the passageways 22 and 28 and the conduits 36. The jets of steam exiting from the conduits 36 shear the oil stream being discharged from the annular outlet 70. In accordance with the in-vention, the annular outlet 70 includes a tapered portion 41 which cooperates with the arcuate surface of the plate means end face 68 to promote fuel flow through the 90 turn defined by the annular outlet 70. Moreover, the deflector 60 is rotatably adjustable to change the cross sectional flow area of the annular outlet 70 thereby providing optimum clearance as the fuel path turns 90 prior to discharge in-to passageway 46.
The atomized fuel-vapor mixture, while still above atmospheric pressure, if further atomized as a result of pressure and velocity energy change during flow through thepassageway 49 formed by orifice plates 42 and 44. The atomized fuel-vapor mixture is then passed to the chamber 56 and is thereafter discharged through the openings 58 where pressure energy is further converted to velocity energy.
The resultant expansion of steam causes still further break-ùp of the liquid fuel into small particles with intimate - mixing of the fuel and steam with the result that a sub-stantially homogeneous mixture of finely atomized fuel and steam is produced for subsequent introduction in the com-bustion air stream.
While in accordance with the provisions of the statutes there is illustrated and described herein a specific embodiment of the invention, those skilled in C~sc 1~22 the art ~lill undcrstand that changes may be made in the form of the invention covered b~ the claims and that certain features of the invention may sometimes be used to advantage without a corresponding use of t~e other features, ., .
The cou])ling 14 is provided with a central passage-way 22 which admits atomizing vapor to the burner 10 and. dis-: charges it into an annular passageway 28 formed by the tube 24 and the barrel 12 and a portion of coupling 14.
The cylindrical member 30 includes a center bore 32 extending therethrough and communicating with the central passageway 26, and a plurality of equispaced conduits 36 extending through the member 30 in parallel and spaced sur-rounding relation to the center bore 32, and communicating with the annular passageway 28.
The center bore 32 extend.s through the cylindrical member 30 in coaxial relation therewith and is comprised of an inlet segment 37 and an outlet segment 38, the two segments being joined by a uniformly convergent transition segment 40.
The inlet segment 37 is of uniform cross section throughout and is sized so as to slidably engage the forward end section 27 of tube 24. The outlet segment 38 has a smaller cross sectional diameter than the inlet segment 37 and has an in-wardly tapered leading end portion 41.
The conduits 36 are of equal dimension and of uniform cross section throughout. A pair of orifice plates 42 and 44 respectively are disposed adjacent the discharge end face 45 of cylindrical member 30. The orifice plates Cas~ 1~022 lV3U~2S
42 and 44 are formed with respectiv~ passa~eways 46 and 48 of frusto-conical confi~uratlon whose small ends abut one another and are formed ~Jith a straight edge so as to define a cylindrical passageway 49 i.ntermediate the two frusto-conical passageways 46 and 48.
The sprayer cap 18 is cGmprised of a cylindrical wall 50 open at one end, and closed at the other end. by a central wall 52 lying along a plane normal to the burner axis and a perforated inclined wall 54 disposed inter-mediate the walls 50 and 52. The cylindrical wall 50 isformed with an internal thread which engages complementary threads on the sleeve 16, and includes a shoulder that abuts the leading face of orifice plate 44 to ~aintain it and the orifice plate 42 in a fixed position. A chamber 56 is formed between the orifice plate 44 and the front end of the sprayer cap 18. The chamber 56 discharges through a plurality of openings 58 which extend through the wall 54 ~- in a direction normal thereto.
In accordance with theinvention, an atomizer 31 is provided with a deflector 60 having at one end. thereof a plate means 62 and at the other end a shank 64, the latter being supportingly connected to the atomizer end cap 18.
The plate means 62 includes a cylindrical segment 66 having an end face 68 formed with an arcuate surface projecting into the tapered bore portion 41 and cooperating therewith . and with the end face 45 of cylindrical member 30 to define therebetween an annular outlet 70. The segment 66 merges into a frusto-conical segment 72 which in turn merges into the shank 64, the latter being of cylindrical shape and 30 having a threaded portion 74 which rotatably engages comple-mentary threads formed along the opening 76 of the end cap ~sc ll02~
103~i9ZS
central wall 52. Thc threaded portion 7l~ has ~ predeter-mined le~gth to permit an ad~ustment in the position of deflector 60 along the burner ~xis thereby providing the means ~or changing the cross sectional ~low area of the annular outlet 70. The adjustment is e~fected by in-serting a screwdriver (not shown) in the slot 78, formed on the end face of shank 64, and rotating it in a clock-wise direction to reduce the flow area of the outlet 70, and in a counter-clockwise direction to increase the flow area of the outlet 70.
In accordance with the main embodiment of the invention, when the desired cross sectional flow area for the annular outlet 70 has been obtained, a weldment 80 is applied between the exposed end of shank 64 and the central wall 52 to fixedly secure the deflector 60 to the atomizer end cap 18.
In accordance with the alternate embodiment of the invention, a locknut 82 is threaded onto the exposed portion of the shank 64. When the desired cross sectional flow area for the annular outlet 70 has been obtained, a wrench (not shown) is applied to the locknut 82 to tighten it against the central wall 52 thereby securing the de-flector 60 to the atomizer end cap 18. If a change is re-quired in the cross sectional flow area of the outlet 70, the locknut is loosened to allow repositioning of the de-flector 60, and is thereafter tightened to secure the de-flector 6G in the newly selected position.
During operation of the burner 10, pressurized liquid fuel, e.g. oil, is continuously supplied to the coupling 14 for serial flow through the passageways 20 and ~, Case 4022 ~036925 26 and the center bore 32. At the same timc, atomized vapor, e.g. steam, is pressurized to a level higher than that of the fuel and is contimlously supplied to the coupling 14 for serial flow through the passageways 22 and 28 and the conduits 36. The jets of steam exiting from the conduits 36 shear the oil stream being discharged from the annular outlet 70. In accordance with the in-vention, the annular outlet 70 includes a tapered portion 41 which cooperates with the arcuate surface of the plate means end face 68 to promote fuel flow through the 90 turn defined by the annular outlet 70. Moreover, the deflector 60 is rotatably adjustable to change the cross sectional flow area of the annular outlet 70 thereby providing optimum clearance as the fuel path turns 90 prior to discharge in-to passageway 46.
The atomized fuel-vapor mixture, while still above atmospheric pressure, if further atomized as a result of pressure and velocity energy change during flow through thepassageway 49 formed by orifice plates 42 and 44. The atomized fuel-vapor mixture is then passed to the chamber 56 and is thereafter discharged through the openings 58 where pressure energy is further converted to velocity energy.
The resultant expansion of steam causes still further break-ùp of the liquid fuel into small particles with intimate - mixing of the fuel and steam with the result that a sub-stantially homogeneous mixture of finely atomized fuel and steam is produced for subsequent introduction in the com-bustion air stream.
While in accordance with the provisions of the statutes there is illustrated and described herein a specific embodiment of the invention, those skilled in C~sc 1~22 the art ~lill undcrstand that changes may be made in the form of the invention covered b~ the claims and that certain features of the invention may sometimes be used to advantage without a corresponding use of t~e other features, ., .
Claims (7)
1. A liquid fuel burner having tube means defining a central passageway, barrel means concentrically disposed about said tube means to form therebetween an annular passageway, means supplying a fluid to be atomized to said central passageway and an atomizing fluid to said annular passageway, the improvement comprising an atomizer connected to the barrel means, said atomizer including a cylindrical member having a first and second passageway means communicating respectively with said central and annular passageways, a perforated end cap for discharging the atomized fluid from said burner, and a deflector having plate means cooperating with an end face of the cylindrical member to form therebetween an annular outlet passageway from said first passageway means the plate means including an arcuate projection facing said first passageway means, and, the deflector being mounted on said cap.
2. The liquid fuel burner according to claim 1 wherein the annular outlet passageway includes at least a portion thereof tapered in the direction of discharge from said first passageway means.
3. The liquid fuel burner according to claim 1 including the deflector being fixedly mounted on said end cap.
4. The liquid fuel burner according to claim 1 including the deflector being movably mounted on said end cap.
5. The liquid fuel burner according to claim 1 wherein the deflector includes a shank extending through said end cap and being supported therefrom.
6. The liquid fuel burner according to claim 5 including the end cap and shank having threaded portions cooperating with one another to permit axial movement of said deflector.
7. The liquid fuel burner according to claim 6 including means engaging the threaded shank portion to secure the deflector to said end cap.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US513682A US3929290A (en) | 1974-10-10 | 1974-10-10 | Fuel atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1036925A true CA1036925A (en) | 1978-08-22 |
Family
ID=24044259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA236,345A Expired CA1036925A (en) | 1974-10-10 | 1975-09-25 | Fuel atomizer |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3929290A (en) |
| JP (1) | JPS5646052B2 (en) |
| AR (1) | AR204473A1 (en) |
| AU (1) | AU497771B2 (en) |
| BR (1) | BR7506664A (en) |
| CA (1) | CA1036925A (en) |
| GB (1) | GB1517005A (en) |
| NL (1) | NL179679C (en) |
| ZA (1) | ZA756398B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3024749A1 (en) * | 1980-06-30 | 1982-02-04 | Elmont AG, Kreuzlingen | Gas-fluid spray generation method - regulates proportions by varying passage cross=sections in mixer |
| DE3513764A1 (en) * | 1985-04-17 | 1986-10-23 | Deutsche Babcock Werke AG, 4200 Oberhausen | NOZZLE FOR PNEUMATICALLY INPUTING SOLIDS |
| EP0268702B1 (en) * | 1986-11-27 | 1990-03-28 | Fluidics Instruments B.V. | Compressed-air atomizer nozzle |
| DE3714408A1 (en) * | 1987-04-30 | 1988-11-10 | Bbc Brown Boveri & Cie | DUAL BURNER DEVICE WITH A FUEL OIL SPRAYER |
| US4819878A (en) * | 1987-07-14 | 1989-04-11 | The Babcock & Wilcox Company | Dual fluid atomizer |
| JPH0748081Y2 (en) * | 1991-07-12 | 1995-11-08 | 株式会社葵サンダル | slipper |
| US5289976A (en) * | 1991-12-13 | 1994-03-01 | Mobil Oil Corporation | Heavy hydrocarbon feed atomization |
| US5454712A (en) * | 1993-09-15 | 1995-10-03 | The Boc Group, Inc. | Air-oxy-fuel burner method and apparatus |
| US5732885A (en) * | 1994-10-07 | 1998-03-31 | Spraying Systems Co. | Internal mix air atomizing spray nozzle |
| US5553785A (en) * | 1995-01-10 | 1996-09-10 | Spraying Systems Co. | Enhanced efficiency apparatus for atomizing and spraying liquid |
| US5868321A (en) * | 1995-01-10 | 1999-02-09 | Spraying Systems Co. | Enhanced efficiency atomizing and spray nozzle |
| US5890442A (en) * | 1996-01-23 | 1999-04-06 | Mcdermott Technology, Inc. | Gas stabilized reburning for NOx control |
| US8672234B2 (en) | 2010-05-20 | 2014-03-18 | Enginetics, Llc | Multi-physics fuel atomizer and methods |
| US9206737B2 (en) | 2013-04-05 | 2015-12-08 | Enginetics, Llc | System control strategy and methods for multi-physics fuel atomizer |
| US10302058B2 (en) | 2013-04-05 | 2019-05-28 | Enginetics, Llc | Co-axial dual fluids metering system and methods |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US724053A (en) * | 1901-09-28 | 1903-03-31 | Richard Franklin Schroeder | Oil-burner. |
| US714394A (en) * | 1902-06-23 | 1902-11-25 | Louis A Pfeiffer | Oil-burner. |
| US1300643A (en) * | 1918-10-24 | 1919-04-15 | William L Perry | Oil-burner. |
| US2643916A (en) * | 1949-04-25 | 1953-06-30 | Braun & Co C F | Fuel burner |
| US3215352A (en) * | 1964-06-02 | 1965-11-02 | Jr Daniel Meraz | Bi-propellant metering and injecting valve |
-
1974
- 1974-10-10 US US513682A patent/US3929290A/en not_active Expired - Lifetime
-
1975
- 1975-01-01 AR AR260588A patent/AR204473A1/en active
- 1975-09-25 CA CA236,345A patent/CA1036925A/en not_active Expired
- 1975-10-08 JP JP12084875A patent/JPS5646052B2/ja not_active Expired
- 1975-10-09 ZA ZA756398A patent/ZA756398B/en unknown
- 1975-10-09 BR BR7506664*A patent/BR7506664A/en unknown
- 1975-10-10 AU AU85625/75A patent/AU497771B2/en not_active Expired
- 1975-10-10 NL NLAANVRAGE7511949,A patent/NL179679C/en not_active IP Right Cessation
- 1975-10-10 GB GB41570/75A patent/GB1517005A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5164643A (en) | 1976-06-04 |
| GB1517005A (en) | 1978-07-05 |
| NL7511949A (en) | 1976-04-13 |
| NL179679C (en) | 1986-10-16 |
| ZA756398B (en) | 1977-05-25 |
| AR204473A1 (en) | 1976-02-06 |
| AU8562575A (en) | 1977-04-21 |
| NL179679B (en) | 1986-05-16 |
| US3929290A (en) | 1975-12-30 |
| BR7506664A (en) | 1976-08-17 |
| AU497771B2 (en) | 1979-01-04 |
| JPS5646052B2 (en) | 1981-10-30 |
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