US1890196A - Carburetor - Google Patents
Carburetor Download PDFInfo
- Publication number
- US1890196A US1890196A US532042A US53204231A US1890196A US 1890196 A US1890196 A US 1890196A US 532042 A US532042 A US 532042A US 53204231 A US53204231 A US 53204231A US 1890196 A US1890196 A US 1890196A
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- US
- United States
- Prior art keywords
- fuel
- air
- jet
- passage
- carburetor
- 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
Links
- 239000000446 fuel Substances 0.000 description 49
- 238000010276 construction Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 102100028735 Dachshund homolog 1 Human genes 0.000 description 1
- 101000915055 Homo sapiens Dachshund homolog 1 Proteins 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- SSJXIUAHEKJCMH-UHFFFAOYSA-N cyclohexane-1,2-diamine Chemical compound NC1CCCCC1N SSJXIUAHEKJCMH-UHFFFAOYSA-N 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
- F02M19/03—Fuel atomising nozzles; Arrangement of emulsifying air conduits
- F02M19/035—Mushroom-shaped atomising nozzles
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/39—Liquid feeding nozzles
Definitions
- This invention pertains to charge forming devices for internal combustion motors and more particularly it pertains to novel constructions in jet tubes for carburetors.
- a feature of the invention resides in a novel construction whereby the stream of gasoline is subjected to one or more cross currents of air preferably just immediately before it is discharged from the fuel of the carburetor.
- Another feature of the invention resi-des in a novel construction of discharge jet which may be incorporated in any of the standard types of carburetors operating either on the vertical, horizontal, angular or down draft principle.
- Still another feature of the invention resides in the provision of means whereby a stream of gasoline or other fuel is intercepted by one or more streams of air which are introduced tangentially into the fuel stream.
- Figure l is a view in side elevation partly broken away illustrating a conventional carburetor with a fuel supply jet constructed in accordance with one form of the invention in operative position therein,
- Figure 2 is a detail longitudinal sectional view of that form of jet illustrated in Figure 1,
- Figure 3 is a top plan view thereof
- Figure 4 is a horizontal sectionalV view taken on the line lr-4: of Figure 2
- Figure 5 is a view partly in elevation and partly in longitudinal section of a modified form of the invention
- Figure 6 is a horizontal sectional view taken on the line 6-6 vof Figure 5
- Figure 7 is a fragmentary sectional view of the Venturi passage of a carburetor of the down draft type illustratingy a form of nozzle constructed in accordance with the present invention in position therein,
- k Figure 8 is a view partly in elevation partly in section of that form of nozzle illustrated in Figure 7, 65
- Figure 9 is a transverse sectional view taken on the line 9-9 of Figure 7 and Figure l0 is an enlarged detail sectional view taken substantially on line 10-10 of Figure 9. 70
- the reference numeral 20 designates a carburetor having a float chamber 21, and an air intake 22 controlled by a suit- 5 able butterfly valve mounted upon a shaft and not shown.
- the reference character 24 designates the mixture outlet passage controlled by a suitable butterfly valve in the ordinary manner.
- the reference character 25 designates the mixing chamber of the carburetor' and 60 designates the fuel ysupply nozzle constructed in accordance with that type of the invention illustrated in Figures 'ato i. 85
- the fuel nozzle comprises a relatively long tube having an enlarged head 6l which is hollow, and has its upper end closed as at 62.
- the enlarged head 60 vis so formed as to present a shoulder or the like G5 in the path of air as it passes into the mixing chamber 25 of the carburetor, and this shoulder serves to retard the air in its passage and cause the same to pass through a plurality of air passages which are angularly disposed with respect to the axis of the passage through the nozzle 60.
- Fuel is admitted to the passage 30 leading through the nozzle 60 in any desired manner at the 100 lower end 3l thereof and in operation, the fuel in passing upwardly through the passage 30 of the nozzle 60 is discharged through a plurality of minute openings 63 at the uppei ⁇ end 62 thereof and also through passages 64 provided in the side walls of the enlarged head portion into the mixture fuel chamber at the passage 24 of the carburetor.
- the stream of fuel In its passage through the nozzle 60, and just prior to its discharge through the passages 63, 64, the stream of fuel is intercepted by a plurality of streams of air which are admitted into the hollow head through the passages 65 formed in the shoulder 66 and projected into the fuel at an angle thereto thus eausinga thorough breaking up of the fuel and intermingling of air therewith to ⁇ provide the highly combustible and therefore economical fuel.
- each of the forms means projects into the path of the air in its passage through the carburetor and serves" to retard the same thus causing it to )ass throu h the t C3 air passages with considerable force
- this feature is common to all of the forms illustrated and thus in all the forms, means to insure an in- Vterception of the fuel stream by a plurality of 4end of the: nozzle orrjet 5l, it being understoodVV of Yair streams of suflicient force to cause a thorough breaking upl of the fuel stream andinteriningling of. air therewith is provided.
- the nozzle is constructed on a slightly different principle than in the heretofore described form of the invention.
- the aii is introduced intothe fuel stream of the jet tangentially thereof and thestream of Ymixed fuel and air which isl emitted from the jet, is by this construction given a whirling or rotary motion which tends'to even more thoroughly break upthe lfuel andcause a thorough miXingsof the air therewith.
- the upper is closed as at n course that as iii the heretofore Adescribed form of the invention the nozzle or jet has' an enlarged head 52 which presents ashoulder 58 in the air passage throughV the carburetor in order tocause .a banking up of thek air Y and thus insure its passage through apluralistream' at this point ty of air passages 54V which communicate with ,fuel passages'55 which passangulaily through the jetV or nozzle.
- these fair passages 54 Yare arrangedangularly or spirally around the' head of the nozzle or jet 5K0 and lead from Va point beneath the shoulder 53 of the head 51 ofthe nozzle to the ra- ',dially. extending passages 55 throughwhich the fuel is emitted from the nozzle or jet.
- FIGs 7 to l0 inclusive we have illustrated a carburetor of the down-draft type, and in said figures designates the air intake passage of such a carburetor, and 7l designates the Venturi passage thereof.
- a fuel supply nozzle 72 Projecting into the Venturi passage 7l at an angle thereto, there is a fuel supply nozzle 72 and as best illustrated in Figures 7 and l0, this nozzle 72 has a stem portion 73 and ahead por- 7 tion 74 the nozzle being of 'substantially' T- shape.'A
- the head portion 74 projects Atransversely of the Venturi passage 71 as best illustrated in Figure 9 and it is provided with a plurality of passages 76 and 77, the passages 76 being staggered or offset with relation to the heretofore mentioned passages 77 lwhich latterare in the underneathside of the head 74.
- the length of the head 74 of the noz'- zles is substantially equal to the diameter of the ⁇ air passage 7l at the smallest diameter of the Venturi passage.
- an air passage extending therethrough, a fuel jet positioned in said passage, said fuel jet having a closed upper end, an enlarged portion formed on the upper end of said fuel jet, said enlarged portion extending into said air passage to retard the flow of air therethrough, discharge passages extending through the side walls of said j et near the upper end thereof, said passages discharging into said air passage, and a plurality of relatively small air passages formed in said jet and discharging tangentially into said jet discharge passages, said air passages having their inlet ends located on the exterior of the jet at the base of the enlarged portion thereof.
- an air passage extending therethrough, a fuel jet extending angularly into said air passage, and a plurality of air passages extending through the walls of the fuel jet, the axis of said air passages being parallel to the axis of the air passage through the carburetor.
- a T-shaped fuel jet extending angularly into said air passage, with the head of said jet disposed substantially at right angles to the axis of the air passage through the carburetor, and a plurality of air passages passing through the head of the T-shaped jet in parallelism with the axis of the ai r passage through the carburetor.
- an air passage extending therethrough, a venturi forming a portion of said air passage, a T-shaped fuel jet extending angularly into said venturi, the head of said fuel jet being of a length substantially equal to the smallest transversedimension of said venturi, and a plurality of air passages extending through the head of the fuel jet.
- a carburetor an air passage extending therethrough and a fuel jet arranged therein, said fuel jet comprising a tubular body portion having an enlarged hollow head presenting an abrupt shoulder in said fuel passage, relatively small passages extending through said shoulder into the hollow head, and relatively small discharge passages extending through the side walls of the head.
- a carburetor an air passage extending therethrough and a fuel jet arranged therein, said fuel jet comprising an elongated hollow body terminating at its upper end in an enlarged head of hollow truncated conical form, and presenting an abrupt shoulder in the fuel passage, discharge passages leading through the side walls of said head, and relatively small-er passages leading through said shoulder and discharging directly into said discharge passages.
- a carburetor an air passage extending therethrough and a fuel jet arranged therein, said fuel jet comprising an elongated hollow body terminating at its upper end in an enlarged head of hollow truncated conical form, and presenting an abrupt shoulder in the fuel passage, discharge passages leading through the side walls of said head, and relatively smaller passages leading through said shoulder and discharging directly into said discharge passages, said last mentioned passages extending tangentially of the said shoulder.
- FREDERICK C SCI-IRAMM. MAX DACH.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
F. c. 'scHRAMM Err Al. 1,890,196
CARBURETOR Filed April 22, 1951 2 Sheets-Sheet 1 ml Il f i-l- T e* HOM. i d
Ir Il,
, I 25 I Y ,2a
, J 64 *l* a di. l y |IIO ,Q0 l 60 i`: ,2f 2;
M gg :I I f I f 1- x fas-,d2
Inventor FREDEfa/CH. SCH/MMM /VAx DACH A ilorney 4 Dec. 6, 1932.
F. c. -scHRAMM ET AL GARBURETOR Filed Apri1 22. 1931 2 sheets-sheet `2 FEEDER/cn C SCHRAMM A tlorney Patented Dec. 6, 1932 UN''ED STTS rATEr errer:-
FREDERICK G. SCHRAMM AND MAX DACH, OF FLUSHING, NEW YORK CARBURETOR Application led April 22, 1931. Serial No. 532,042.
This invention pertains to charge forming devices for internal combustion motors and more particularly it pertains to novel constructions in jet tubes for carburetors.
It is one of the objects of the present invention to provide a novel construction of jet tube for carburetors wherein a breaking up of the fuel, to a very high degree, is obtained thus producing a high degree of vaporization.
A feature of the invention resides in a novel construction whereby the stream of gasoline is subjected to one or more cross currents of air preferably just immediately before it is discharged from the fuel of the carburetor.
Another feature of the invention resi-des in a novel construction of discharge jet which may be incorporated in any of the standard types of carburetors operating either on the vertical, horizontal, angular or down draft principle.
Still another feature of the invention, resides in the provision of means whereby a stream of gasoline or other fuel is intercepted by one or more streams of air which are introduced tangentially into the fuel stream.
Other features of the invention relate to certain novel and improved constructions,
arrangements and combinations of parts hereinafter described and particularly point-` ed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.
The invention will be clearly understood from the accompanying drawings illustrating the invention in its preferred forms and the following detailed description of the constructions therein shown.
ln the drawings:
Figure l is a view in side elevation partly broken away illustrating a conventional carburetor with a fuel supply jet constructed in accordance with one form of the invention in operative position therein,
Figure 2 is a detail longitudinal sectional view of that form of jet illustrated in Figure 1,
Figure 3 is a top plan view thereof,
Figure 4 is a horizontal sectionalV view taken on the line lr-4: of Figure 2, Figure 5 is a view partly in elevation and partly in longitudinal section of a modified form of the invention,
Figure 6 is a horizontal sectional view taken on the line 6-6 vof Figure 5,
Figure 7 is a fragmentary sectional view of the Venturi passage of a carburetor of the down draft type illustratingy a form of nozzle constructed in accordance with the present invention in position therein,
kFigure 8 is a view partly in elevation partly in section of that form of nozzle illustrated in Figure 7, 65
Figure 9 is a transverse sectional view taken on the line 9-9 of Figure 7 and Figure l0 is an enlarged detail sectional view taken substantially on line 10-10 of Figure 9. 70
Referring more particularly tothe drawings, and with special reference to Figures 1 to 4 inclusive, the reference numeral 20 designates a carburetor having a float chamber 21, and an air intake 22 controlled by a suit- 5 able butterfly valve mounted upon a shaft and not shown. The reference character 24 designates the mixture outlet passage controlled by a suitable butterfly valve in the ordinary manner. The reference character 25 designates the mixing chamber of the carburetor' and 60 designates the fuel ysupply nozzle constructed in accordance with that type of the invention illustrated in Figures 'ato i. 85
Referring particularly to Figures l to 4, it will be noted that the fuel nozzle comprises a relatively long tube having an enlarged head 6l which is hollow, and has its upper end closed as at 62. The enlarged head 60 vis so formed as to present a shoulder or the like G5 in the path of air as it passes into the mixing chamber 25 of the carburetor, and this shoulder serves to retard the air in its passage and cause the same to pass through a plurality of air passages which are angularly disposed with respect to the axis of the passage through the nozzle 60. Fuel is admitted to the passage 30 leading through the nozzle 60 in any desired manner at the 100 lower end 3l thereof and in operation, the fuel in passing upwardly through the passage 30 of the nozzle 60 is discharged through a plurality of minute openings 63 at the uppei` end 62 thereof and also through passages 64 provided in the side walls of the enlarged head portion into the mixture fuel chamber at the passage 24 of the carburetor. In its passage through the nozzle 60, and just prior to its discharge through the passages 63, 64, the stream of fuel is intercepted by a plurality of streams of air which are admitted into the hollow head through the passages 65 formed in the shoulder 66 and projected into the fuel at an angle thereto thus eausinga thorough breaking up of the fuel and intermingling of air therewith to `provide the highly combustible and therefore economical fuel.
By reference to the` drawings, it will be noted thatin each of the forms, means projects into the path of the air in its passage through the carburetor and serves" to retard the same thus causing it to )ass throu h the t C3 air passages with considerable force, and while various constructions are herein illustrated, it-will be noted that this feature is common to all of the forms illustrated and thus in all the forms, means to insure an in- Vterception of the fuel stream by a plurality of 4end of the: nozzle orrjet 5l, it being understoodVV of Yair streams of suflicient force to cause a thorough breaking upl of the fuel stream andinteriningling of. air therewith is provided.
In that form of the invention illustrated in Figures 5 and 6, the nozzle is constructed on a slightly different principle than in the heretofore described form of the invention. In this form illustrated in Figures 5 and 6, the aii is introduced intothe fuel stream of the jet tangentially thereof and thestream of Ymixed fuel and air which isl emitted from the jet, is by this construction given a whirling or rotary motion which tends'to even more thoroughly break upthe lfuel andcause a thorough miXingsof the air therewith.
Inj this form of the invention, the upper is closed as at n course that as iii the heretofore Adescribed form of the invention the nozzle or jet has' an enlarged head 52 which presents ashoulder 58 in the air passage throughV the carburetor in order tocause .a banking up of thek air Y and thus insure its passage through apluralistream' at this point ty of air passages 54V which communicate with ,fuel passages'55 which passangulaily through the jetV or nozzle. As
the enlarged head 52.0f
' best illustrated. by the arrows'A in Figure 5,
and as also clearly shown in Figure 6, these fair passages 54 Yare arrangedangularly or spirally around the' head of the nozzle or jet 5K0 and lead from Va point beneath the shoulder 53 of the head 51 ofthe nozzle to the ra- ',dially. extending passages 55 throughwhich the fuel is emitted from the nozzle or jet.
Thus it will be apparent that the fuel in itsA fuel.
In Figures 7 to l0 inclusive, we have illustrated a carburetor of the down-draft type, and in said figures designates the air intake passage of such a carburetor, and 7l designates the Venturi passage thereof. Projecting into the Venturi passage 7l at an angle thereto, there is a fuel supply nozzle 72 and as best illustrated in Figures 7 and l0, this nozzle 72 has a stem portion 73 and ahead por- 7 tion 74 the nozzle being of 'substantially' T- shape.'A The head portion 74 projects Atransversely of the Venturi passage 71 as best illustrated in Figure 9 and it is provided with a plurality of passages 76 and 77, the passages 76 being staggered or offset with relation to the heretofore mentioned passages 77 lwhich latterare in the underneathside of the head 74.
In this connection, and as best shown t Figure 9, the length of the head 74 of the noz'- zlesis substantially equal to the diameter of the `air passage 7l at the smallest diameter of the Venturi passage. h
Thus-it will be apparent that even in this form of the invention, the air in its passage through'the Venturi passage 7l ofthe carburetor will be retarded and will be' caused to flow through the openings 76 and in through er fuel and ca'using'a thorough vbreaking Vup thereof andan intermingling thereof with inillustrated, it willV be noted that the airr stream is projected through the fuel stream, and that the fuel stream is projected through place at a point above the normal liquid level `the present invention provides a new and novel. construction in carburetors wherein a thorlof the fuel in the jet, as well as the discharge:`
ough mixing of air and fuel to thedesired'endf of a highlycombustible fuel is obtained, and that the yconstruction herein illustrated is capable of use in practically al1 standard types offcarburetor merely by introducing a noz-` While the'inve'ntion has been herein illustrated in its preferred forms, it is to be unzle constructed in accordance with one of thei .forms of this invention thereinto.
derstood that the invention is not to be lim-j ited to the specilicconstruction herein shown,
v the opening 77 picking up the gasoline or oth-2 the air stream, and also that this action takes izo CII
and that it may be practiced in other forms without departing from the spirit thereof.
I-Iaving thus described the invention, what is claimed as new and what it is desired to secure by Letters Patent of the United States, is:
l. In a carburetor, an air passage extending therethrough, a fuel jet positioned in said passage, said fuel jet having a closed upper end, an enlarged portion formed on the upper end of said fuel jet, said enlarged portion extending into said air passage to retard the flow of air therethrough, discharge passages extending through the side walls of said j et near the upper end thereof, said passages discharging into said air passage, and a plurality of relatively small air passages formed in said jet and discharging tangentially into said jet discharge passages, said air passages having their inlet ends located on the exterior of the jet at the base of the enlarged portion thereof.
2. In a carburetor, an air passage extending therethrough, a fuel jet extending angularly into said air passage, and a plurality of air passages extending through the walls of the fuel jet, the axis of said air passages being parallel to the axis of the air passage through the carburetor.
3. In a carburetor, an air passage extending therethrough, a T-shaped fuel jet extending angularly into said air passage, with the head of said jet disposed substantially at right angles to the axis of the air passage through the carburetor, and a plurality of air passages passing through the head of the T-shaped jet in parallelism with the axis of the ai r passage through the carburetor.
4. In a carburetor, an air passage extending therethrough, a T-shaped fuel jet projecting into said air passage at an angle to the axis thereof, the length of the head of said fuel j et being substantially equal to the diameter of said air passage, and a. plurality of air passages extending through the head of the jet.
5. In a carburetor, an air passage extending therethrough, a venturi forming a portion of said air passage, a T-shaped fuel jet extending angularly into said venturi, the head of said fuel jet being of a length substantially equal to the smallest transversedimension of said venturi, and a plurality of air passages extending through the head of the fuel jet.
6. In a carburetor, an air passage extending therethrough and a fuel jet arranged therein, said fuel jet comprising a tubular body portion having an enlarged hollow head presenting an abrupt shoulder in said fuel passage, relatively small passages extending through said shoulder into the hollow head, and relatively small discharge passages extending through the side walls of the head.
7. In a carburetor, an air passage extending therethrough and a fuel jet arranged therein, said fuel jet comprising an elongated hollow body terminating at its upper end in an enlarged head of hollow truncated conical form, and presenting an abrupt shoulder in the fuel passage, discharge passages leading through the side walls of said head, and relatively small-er passages leading through said shoulder and discharging directly into said discharge passages.
8. In a carburetor, an air passage extending therethrough and a fuel jet arranged therein, said fuel jet comprising an elongated hollow body terminating at its upper end in an enlarged head of hollow truncated conical form, and presenting an abrupt shoulder in the fuel passage, discharge passages leading through the side walls of said head, and relatively smaller passages leading through said shoulder and discharging directly into said discharge passages, said last mentioned passages extending tangentially of the said shoulder.
In testimony whereof we affix our signatures.
FREDERICK C. SCI-IRAMM. MAX DACH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US532042A US1890196A (en) | 1931-04-22 | 1931-04-22 | Carburetor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US532042A US1890196A (en) | 1931-04-22 | 1931-04-22 | Carburetor |
Publications (1)
Publication Number | Publication Date |
---|---|
US1890196A true US1890196A (en) | 1932-12-06 |
Family
ID=24120149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US532042A Expired - Lifetime US1890196A (en) | 1931-04-22 | 1931-04-22 | Carburetor |
Country Status (1)
Country | Link |
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US (1) | US1890196A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445846A (en) * | 1942-07-22 | 1948-07-27 | Bendix Aviat Corp | Fuel supply system |
US2775962A (en) * | 1951-03-31 | 1957-01-01 | Sontag Joseph | Engine starting means |
US4221747A (en) * | 1978-07-26 | 1980-09-09 | Edmonston William H | Carburetor |
USRE31475E (en) * | 1978-07-26 | 1983-12-27 | Carburetor | |
US20050161028A1 (en) * | 2004-01-23 | 2005-07-28 | Leendert Wolters | Gaseous fuel mixer and method of operation |
-
1931
- 1931-04-22 US US532042A patent/US1890196A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445846A (en) * | 1942-07-22 | 1948-07-27 | Bendix Aviat Corp | Fuel supply system |
US2775962A (en) * | 1951-03-31 | 1957-01-01 | Sontag Joseph | Engine starting means |
US4221747A (en) * | 1978-07-26 | 1980-09-09 | Edmonston William H | Carburetor |
USRE31475E (en) * | 1978-07-26 | 1983-12-27 | Carburetor | |
US20050161028A1 (en) * | 2004-01-23 | 2005-07-28 | Leendert Wolters | Gaseous fuel mixer and method of operation |
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