EP0127917A2 - Improved atomizer for gas-oil burners - Google Patents
Improved atomizer for gas-oil burners Download PDFInfo
- Publication number
- EP0127917A2 EP0127917A2 EP84200732A EP84200732A EP0127917A2 EP 0127917 A2 EP0127917 A2 EP 0127917A2 EP 84200732 A EP84200732 A EP 84200732A EP 84200732 A EP84200732 A EP 84200732A EP 0127917 A2 EP0127917 A2 EP 0127917A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- atomizer
- gas
- improved
- oil
- conical
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3452—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the cooperating elements being movable, e.g. adjustable relative to one another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3442—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cone having the same axis as the outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
-
- 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
- F23D11/38—Nozzles; Cleaning devices therefor
- F23D11/383—Nozzles; Cleaning devices therefor with swirl means
Definitions
- This invention relates to an improved atomizer for gas-oil burners, especially those gas-oil burners used in heating installations.
- the present invention relates to such an atomizer whereby a considerably better spraying of the gas-oil is obtained, so that a better combustion and as a consequence thereof a better thermal efficiency of the heating installation is achieved.
- the atomizer according to the present invention is conceived in such a way, that the gas-oil as a result of its rotation in the atomizer leaves the latter in an extremely finely divided state, then is mixed with combustion air and as it were is divided a second time.
- the improved atomizer according to the present invention showing the above-named and still other advantages, mainly consists of an atomizer body wherein, with its top angle ending into the atomizer opening, a conical cavity is provided and wherein in this body a freely rotatable revolving head is provided which is driven by the gas-oil, the conical end of the revolving head being held at a very small distance from said cavity so as to form a conical gap through which the gas-oil has to pass before reaching the atomizer opening.
- an atomizer 1 according to the present invention is represented, mainly consisting of a body 2 being provided at its front part of a calibrated atomizer opening 3 and at its back of a male screw-thread part 4 by means of which the atomizer can be screwed in a burner and of a female screw-thread part 5 with which - as will appear below - determined parts of the atomizer can co-operate.
- a conical cavity 6 the top angle of which ends into the atomizer opening 3 and wherein said conical cavity via a stop 7 blends into a cylindrical part 8 constituting the extension of said female screw-thread 5.
- a spacer ring 9 bearing on the stop 7; a so-called revolving head 10 which is fixed in position in the inner ring 11 of a ball bearing 12, the outer ring 13 of which is properly fitting in the bore 8 of the body 2; an adapter 14 taking care for determining the right direction of the gas-oil flowing through; and finally a hold-down piece 15 with central passage 16 that co-operates externally with said screw-thread 5 and serves to press the adapter 14 against the outer ring 13 of the ball bearing which itself presses against the spacer ring 9, everything such that the spacer ring 9, the outer ring 13 of ball bearing 12 and the adapter 14 in all circumstances remain immobile with respect to the atomizer body 2
- the top angle of the conical cavity 6 and of the end 17 is about 115°.
- a fuel filter 18 can be connected to the atomizer 1 in any way.
- the revolving head 10 which is fixed in position in the inner ring 11 of ball bearing 12, is executed in such a way that also through the intermediary of spacer ring 9, the conical end remains at a very small distance from this conical cavity 6, wherein preferably in the flattened free end of revolving head 10 a conical cavity 19 is provided, whereas in the conical surface 17 one or more - in this case four - small notches 20-21-22 and 23 are provided.
- a chamber 24 is provided in the adapter 14, the diameter of which chamber is greater than the outer diameter of the inner ring 11 of ball bearing 12, whereas in the other end a cavity is provided - in this case a conical cavity 25 - and wherein the chamber 24 and the cavity or chamber 25 are connected to each other by a bore 26, which is provided at the side and is inclined in the adapter 14.
- a plurality of bores 26 could be provided.
- the working principle of the improved atomizer according to the invention is as follows.
- the gas-oil is brought through the fuel filter 18 in the atomizer 1 wherein it passes through the bore 16 in the hold-down piece 15 and then arrives in chamber 25, passes through the bore 26 and arrives in chamber 24 of the adapter 14, which results therein that the gas-oil arrives between the rings 11 and 13 of ball bearing 12 and then, via the space formed by the spacer ring 9 and the revolving head 10, arrives in the conical gap formed between the surface 17 of the revolving head 10 and the cavity 6 of the atomizer body 2, and finally leaves the atomizer through the opening 3.
- the obtained effect is that by the inclined disposition of the passage or passages 26, the oil impringes obliquely on the balls of ball bearing 12, whereby the ball cage 27 of ball bearing 12 obtains a rotating movement resulting therein that the loose inner ring 11 will also rotate with the ball cage 27 and thus sets the revolving head 10 in motion with respect to the body 2.
- the gas-oil thus drives the revolving head 10
- the latter obtains a relatively great rotational speed so that the oil being moved between the revolving head and the atomizer body 2, in the conical gap is carried along by the revolving head 10 and so is brought in rotation, which rotation is amplified by the presence of one or more small grooves 20 to 23, this rotation taking care that the gas-oil is ejected in very finely divided state through the opening 3 from the atomizer body 2.
Abstract
Improved atomizer for gas-oil burners, characterized thereby that it mainly consists of an atomizer body (2) wherein, with its top angle ending into the atomizer opening (3), a conical cavity (6) is provided and wherein in this body (2) a freely rotatable revolving head (10) is provided which is driven by the gas-oil, the conical end (17) of the revolving head (10) being held at a very small distance from said cavity (6) so as to form a conical gap through which the gas-oil has to pass before it can reach the atomizer opening (3).
Description
- This invention relates to an improved atomizer for gas-oil burners, especially those gas-oil burners used in heating installations.
- More especially the present invention relates to such an atomizer whereby a considerably better spraying of the gas-oil is obtained, so that a better combustion and as a consequence thereof a better thermal efficiency of the heating installation is achieved.
- As a matter of fact, the atomizer according to the present invention is conceived in such a way, that the gas-oil as a result of its rotation in the atomizer leaves the latter in an extremely finely divided state, then is mixed with combustion air and as it were is divided a second time.
- As a result of this double division or atomization of the fuel, a practically optimal fuel-air mixture is obtained, whereby a practically complete combustion can take place resulting in a considerable increase of the burner efficiency or the boiler, especially the heating installation concerned.
- So, in other words, for a determined amount of fuel, more thermal units are obtained than with heating installations using burners with traditional atomizers.
- The improved atomizer according to the present invention showing the above-named and still other advantages, mainly consists of an atomizer body wherein, with its top angle ending into the atomizer opening, a conical cavity is provided and wherein in this body a freely rotatable revolving head is provided which is driven by the gas-oil, the conical end of the revolving head being held at a very small distance from said cavity so as to form a conical gap through which the gas-oil has to pass before reaching the atomizer opening.
- In order to better demonstrate the characteristics of the present invention, a preferred embodiment of an atomizer of the present invention will be described hereinafter as an example without limiting the scope of the invention. Reference is made to the accompanying drawings wherein :
- figure 1 represents a longitudinal section of the improved atomizer;
- figures 2 and 3 represent sections according to the lines II-II and III-III in figure I; and
- figure 4 represents a section according to line IV-IV in figure 3.
- In said figures an atomizer 1 according to the present invention is represented, mainly consisting of a
body 2 being provided at its front part of a calibrated atomizer opening 3 and at its back of a male screw-thread part 4 by means of which the atomizer can be screwed in a burner and of a female screw-thread part 5 with which - as will appear below - determined parts of the atomizer can co-operate. - At the inside the
atomizer 2 in its front shows a conical cavity 6 the top angle of which ends into the atomizer opening 3 and wherein said conical cavity via a stop 7 blends into acylindrical part 8 constituting the extension of said female screw-thread 5. According to the present invention are consecutively mounted in the atomizer body 3; a spacer ring 9 bearing on the stop 7; a so-called revolvinghead 10 which is fixed in position in theinner ring 11 of a ball bearing 12, theouter ring 13 of which is properly fitting in thebore 8 of thebody 2; anadapter 14 taking care for determining the right direction of the gas-oil flowing through; and finally a hold-downpiece 15 withcentral passage 16 that co-operates externally with said screw-thread 5 and serves to press theadapter 14 against theouter ring 13 of the ball bearing which itself presses against the spacer ring 9, everything such that the spacer ring 9, theouter ring 13 of ball bearing 12 and theadapter 14 in all circumstances remain immobile with respect to theatomizer body 2 at the one hand, and the conically shapedfront end 17 of the revolving head remains at an appropriate very small distance from said conical cavity 6 of thebody 2. - Preferably the top angle of the conical cavity 6 and of the
end 17 is about 115°. - Behind the hold-down piece 15 a
fuel filter 18 can be connected to the atomizer 1 in any way. - The revolving
head 10, which is fixed in position in theinner ring 11 of ball bearing 12, is executed in such a way that also through the intermediary of spacer ring 9, the conical end remains at a very small distance from this conical cavity 6, wherein preferably in the flattened free end of revolving head 10 aconical cavity 19 is provided, whereas in theconical surface 17 one or more - in this case four - small notches 20-21-22 and 23 are provided. - At the one hand a
chamber 24 is provided in theadapter 14, the diameter of which chamber is greater than the outer diameter of theinner ring 11 of ball bearing 12, whereas in the other end a cavity is provided - in this case a conical cavity 25 - and wherein thechamber 24 and the cavity orchamber 25 are connected to each other by abore 26, which is provided at the side and is inclined in theadapter 14. - In a variation of this embodiment a plurality of
bores 26 could be provided. - The working principle of the improved atomizer according to the invention is as follows.
- The gas-oil is brought through the
fuel filter 18 in the atomizer 1 wherein it passes through thebore 16 in the hold-downpiece 15 and then arrives inchamber 25, passes through thebore 26 and arrives inchamber 24 of theadapter 14, which results therein that the gas-oil arrives between therings head 10, arrives in the conical gap formed between thesurface 17 of the revolvinghead 10 and the cavity 6 of theatomizer body 2, and finally leaves the atomizer through the opening 3. - During the passage of the gas-oil under pressure through the atomizer 1 the obtained effect is that by the inclined disposition of the passage or
passages 26, the oil impringes obliquely on the balls of ball bearing 12, whereby theball cage 27 of ball bearing 12 obtains a rotating movement resulting therein that the looseinner ring 11 will also rotate with theball cage 27 and thus sets the revolvinghead 10 in motion with respect to thebody 2. - By the relatively great force with which the gas-oil thus drives the revolving
head 10, the latter obtains a relatively great rotational speed so that the oil being moved between the revolving head and theatomizer body 2, in the conical gap is carried along by the revolvinghead 10 and so is brought in rotation, which rotation is amplified by the presence of one or moresmall grooves 20 to 23, this rotation taking care that the gas-oil is ejected in very finely divided state through the opening 3 from theatomizer body 2. - By the presence of the
conical cavity 19 in the head of revolvinghead 10, an additional turbulence of the gas-oil is obtained before opening 3, whereby the atomization in still finer droplets is promoted. - At the moment that the thus very finely divided fuel droplets leave the atomizer 1, they are mixed with the combustion air in the usual way whereby a second atomization of the fuel is obtained. It is clear that an optimal mixture of fuel and air is achieved, in this way, whereby a practically complete combustion of the fuel takes place resulting in a considerable increase of the efficiency of the burner or boiler concerned, more especially of the heating installation.
- In other words one can say that by using a burner according to the present invention, more thermal units are obtained with a same amount of fuel.
- The present invention by no means is limited to the described example represented in the accompanying drawings, as such a burner can be realized in any shape or dimensions without departing from the scope of the invention.
Claims (10)
1.- Improved atomizer for gas-oil burners, characterized thereby that it mainly consists of an atomizer body (2) wherein, with its top angle ending into the atomizer opening (3), a conical cavity (6) is provided and wherein in this body (2) a freely rotatable revolving head (10) is provided which is driven by the gas-oil, the conical end (17) of the revolving head (10) being held at a very small distance from said cavity (6) so as to form a conical gap through which the gas-oil has to pass before it can reach the atomizer opening (3).
2.- Improved atomizer according to claim 1, characterized thereby that the revolving head (10) is fixed in the inner ring (11) of a ball bearing (12), the outer ring (13) of which bears on a stop (7).
3.- Improved atomizer according to claim 2, characterized thereby that a spacer ring (9) is provided between the outer ring (13) and the stop (7).
4.- Improved atomizer according to any of the foregoing claims, characterized thereby that the top angle of the conical end (17) of the revolving head (10) has been flattened.
5.- Improved atomizer according to claim 4, characterized thereby that a conical cavity (19) has been provided in said flattened part.
6.- Improved atomizer according to any of the foregoing claims, characterized thereby that one or more radial grooves (20 to 23) have been provided in said conical end (17).
7.- Improved atomizer according to any of the foregoing claims, characterized thereby that in the free end of the atomizer body (2) a hold-down piece (15) with central opening has been provided which presses against an adapter (14), which in its turn presses against the outer ring (13) of the ball bearing (12).
8.- Improved atomizer according to claim 7, characterized thereby that said adapter (14) at each end has a chamber (24-25) being connected to each other by means of at least one oblique passage (26).
9.- Improved atomizer according to claim 8, characterized thereby that chamber (24) is larger than the outer diameter of the inner ring (11) of ball bearing (12), whereas chamber (25) is larger than the central bore (16) in the hold-down piece (15).
10.- Improved atomizer according to claim 8, characterized thereby that the passage (26) has been provided eccentrically and at the side of ball bearing (12) ends between the inner ring (11) and the outer ring (13) of it.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2/60114A BE896922A (en) | 1983-06-02 | 1983-06-02 | Atomiser for oil burner - has cavity converging to orifice and contg. cone faced member rotated by oil flow and spaced from cavity wall |
BE2060114 | 1983-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0127917A2 true EP0127917A2 (en) | 1984-12-12 |
EP0127917A3 EP0127917A3 (en) | 1985-07-31 |
Family
ID=3865635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84200732A Withdrawn EP0127917A3 (en) | 1983-06-02 | 1984-05-21 | Improved atomizer for gas-oil burners |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0127917A3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0226757A1 (en) * | 1985-12-16 | 1987-07-01 | Hans Hench | Aerosol producing device |
US5433383A (en) * | 1991-05-20 | 1995-07-18 | Sundholm; Goeran | Whirler nozzle for fire fighting equipment |
CN102116472B (en) * | 2009-12-31 | 2012-06-27 | 上海神明控制工程有限公司 | Dual-output atomizer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE500784C (en) * | 1929-03-07 | 1930-06-26 | Karl Ludwig Dipl Ing | Process for atomizing liquids with rotor atomizers and apparatus for this |
FR758311A (en) * | 1932-10-10 | 1934-01-15 | Turbine Liquid Sprayer | |
US2107601A (en) * | 1937-07-15 | 1938-02-08 | Balloffet Dies & Nozzle Co Inc | Nozzle |
FR2351354A1 (en) * | 1976-05-11 | 1977-12-09 | Soudan Robert | Jet for oil fired central heating boiler - has conical profile and single tangential groove into annular feed chamber in nozzle body |
-
1984
- 1984-05-21 EP EP84200732A patent/EP0127917A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE500784C (en) * | 1929-03-07 | 1930-06-26 | Karl Ludwig Dipl Ing | Process for atomizing liquids with rotor atomizers and apparatus for this |
FR758311A (en) * | 1932-10-10 | 1934-01-15 | Turbine Liquid Sprayer | |
US2107601A (en) * | 1937-07-15 | 1938-02-08 | Balloffet Dies & Nozzle Co Inc | Nozzle |
FR2351354A1 (en) * | 1976-05-11 | 1977-12-09 | Soudan Robert | Jet for oil fired central heating boiler - has conical profile and single tangential groove into annular feed chamber in nozzle body |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0226757A1 (en) * | 1985-12-16 | 1987-07-01 | Hans Hench | Aerosol producing device |
US5433383A (en) * | 1991-05-20 | 1995-07-18 | Sundholm; Goeran | Whirler nozzle for fire fighting equipment |
EP0933097A3 (en) * | 1991-05-20 | 1999-12-08 | Göran Sundholm | Fire fighting equipment |
CN102116472B (en) * | 2009-12-31 | 2012-06-27 | 上海神明控制工程有限公司 | Dual-output atomizer |
Also Published As
Publication number | Publication date |
---|---|
EP0127917A3 (en) | 1985-07-31 |
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