WO2024069893A1 - キャップレス給油アッセンブリ - Google Patents
キャップレス給油アッセンブリ Download PDFInfo
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- WO2024069893A1 WO2024069893A1 PCT/JP2022/036583 JP2022036583W WO2024069893A1 WO 2024069893 A1 WO2024069893 A1 WO 2024069893A1 JP 2022036583 W JP2022036583 W JP 2022036583W WO 2024069893 A1 WO2024069893 A1 WO 2024069893A1
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- nozzle
- fuel
- tip
- pair
- assembly
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- Ceased
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
Definitions
- the present invention relates to a capless fuel filler assembly for a vehicle.
- a cap is screwed onto the fuel filler opening at the top end of a filler pipe that extends from the fuel tank toward the side of the vehicle body, closing the filler opening.
- vehicles with a capless fuel filler assembly attached to the top end of the filler pipe have also been sold on the market.
- the capless fuel filler assembly has a flapper nozzle that is pushed open by the nozzle of a fuel gun. As it has a flap valve that is opened by pushing in the nozzle of a fuel gun, the capless fuel filler assembly is easy to use.
- Patent Document 1 below discloses a capless fuel filler assembly.
- the fuel gun has a function at its tip to automatically stop fueling.
- the automatic stop function detects the level of the liquid fuel in the fuel pipe and automatically stops fueling.
- gas air and evaporated fuel
- the automatic stop function gas (air and evaporated fuel) is sucked in from an intake hole opened near the tip of the nozzle of the fuel gun by using the negative pressure generated by the Venturi effect due to the flow of liquid fuel during refueling.
- this intake hole may be blocked by liquid fuel flowing out of the nozzle of the fuel gun.
- the automatic stop function instead of the automatic stop function operating normally due to the liquid level rising in the fuel pipe, the automatic stop function will malfunction due to the liquid fuel flowing out of the nozzle. In the case of a gas station where vehicle users themselves refuel, such a malfunction is very inconvenient.
- the object of the present invention is to provide a capless refueling assembly that can prevent malfunction of the automatic stop function of a refueling machine.
- the capless fuel filler assembly is attached to the tip of a fuel filler pipe extending from a fuel tank.
- the capless fuel filler assembly comprises a main body, a flap valve, and a pair of stopper ribs.
- the main body is formed with a fuel filler port into which a nozzle of a fuel filler gun is inserted.
- the flap valve is provided inside the main body so as to be openable and closable, and opens and closes the fuel filler port.
- the pair of stopper ribs protrude inward from the inner surface of a liquid fuel flow path formed inside the main body.
- the pair of stopper ribs protrude inward toward each other, and regulate the insertion depth of the nozzle.
- the shortest distance between the pair of stopper ribs is set to be smaller than the outer diameter of the tip of the nozzle.
- the capless fuel filler assembly is attached to the tip of a fuel filler pipe extending from a fuel tank.
- the capless fuel filler assembly comprises a main body, a flap valve, and at least one stopper rib.
- the main body is formed with a fuel filler port into which a nozzle of a fuel filler gun is inserted.
- the flap valve is provided inside the main body so as to be openable and closable, and opens and closes the fuel filler port.
- the stopper rib protrudes inward from the inner surface of a flow passage for liquid fuel formed inside the main body, and regulates the insertion depth of the nozzle.
- the shortest distance between the stopper rib and the inner surface of the flow passage opposite the tip of the stopper rib is set to be smaller than the outer diameter of the tip of the nozzle.
- FIG. 1 is a cross-sectional view of a capless fuel filling assembly according to a first embodiment.
- FIG. 2 is a cross-sectional view taken along line II-II in FIG.
- FIG. 3 is a cross-sectional view (corresponding to FIG. 2) of a capless fuel filling assembly according to a second embodiment.
- FIG. 4 is a cross-sectional view (corresponding to FIG. 2) of a capless fuel filling assembly according to a modified example of the first embodiment.
- FIG. 5 is a cross-sectional view (corresponding to FIG. 2) of a capless fuel filling assembly according to a modified example of the second embodiment.
- the capless fuel supply assembly (hereinafter simply referred to as the assembly) according to the embodiment will be described below with reference to the drawings.
- the shape of the nozzle of a fuel gun is roughly regulated by the international standard ISO (ISO9158, ISO9159).
- ISO international standard
- the nozzle is curved in the middle and has a straight section at the tip.
- the outer diameter of the nozzle appears to be standardized worldwide at 21 mm for gasoline and 24 mm for diesel fuel.
- the curvature range of the curved section and the length range of the straight section are regulated in the standards.
- the standards stipulate that the position of the above-mentioned intake hole must be within 22 mm from the nozzle tip.
- the intake hole is located inside the curve of the nozzle, but it may open at the end of the nozzle (see Figure 1) or on the outer periphery of the nozzle.
- National standards are determined based on the above ISO (SAE in the US, JIS in Japan, etc.).
- the assembly 1 is attached to the end of a fuel filler pipe 2 that extends upward from a fuel tank (not shown). Liquid fuel supplied through the assembly 1 by a fuel gun 3 flows down inside the fuel filler pipe 2 and is stored in the fuel tank. At this time, to facilitate filling with liquid fuel, gas in the fuel tank is returned to the vicinity of the end of the fuel filler pipe 2 by a breather pipe 20.
- the lower end of the fuel filler pipe 2 is connected to the bottom of the fuel tank and is provided with a check valve.
- the lower end of the breather pipe 20 is connected to the top of the fuel tank.
- the assembly 1 comprises a resin body 10.
- the body 10 is depicted as a single component, but in reality it is made up of multiple resin components.
- the body 10 is a cylindrical member that is narrowed on the fuel tank side.
- the body 10 has a double-cylinder structure that comprises an outer cylinder 13 and an inner cylinder 14.
- a fuel filler port 10a into which the nozzle 30 of the fuel gun 3 is inserted is formed at one end of the body 10.
- An outer flap valve 11 that closes the fuel filler port 10a is provided inside the body 10.
- the outer flap valve 11 is attached to the body 10 so as to be swingable and openable and is constantly biased by a torsion coil spring to close the fuel filler port 10a.
- the assembly 1 has an inner flap valve 12 inside the body 10 in addition to the outer flap valve 11.
- the inner flap valve 12 is disposed closer to the fuel tank than the outer flap valve 11.
- the inner flap valve 12 is also attached to the body 10 by a torsion coil spring so as to be able to swing, and is constantly biased so as to close the intermediate hole 10b inside the body 10.
- the portion of the main body 10 closer to the fuel tank than the intermediate hole 10b has a double cylinder structure with an outer cylinder 13 and an inner cylinder 14.
- the inner cylinder 14 is also called a flow guide.
- the inner diameter of the outer cylinder 13 gradually decreases toward the discharge port 10c formed at its tip.
- the inner cylinder 14 has an outer diameter smaller than the inner diameter of the outer cylinder 13.
- the inner diameter of the inner cylinder 14 also gradually decreases toward the discharge port 14a formed at its tip.
- the gradual change range of the inner diameter of the outer cylinder 13 and the gradual change range of the inner diameter of the inner cylinder 14 are approximately the same as each other along the flow path of the liquid fuel formed inside the main body 10.
- an opening 14b is formed in the upper part of the inner cylinder 14 to avoid interference with the open inner flap valve 12.
- a notch 14c is formed in the lower part of the inner cylinder 14, continuing from the discharge port 14a.
- a pair of guide ribs 15 are formed in the lower part of the inner cylinder 14 from its upper edge to the notch 14c. The guide ribs 15 guide the insertion of the nozzle 30 and extend parallel to the liquid fuel flow path.
- a liquid fuel flow path 31 is formed, and as shown in FIG. 1, an intake passage 32 for automatic refueling stop is further formed inside the nozzle 30.
- the tip of the intake passage 32 is an intake hole 32a, and in this embodiment, the intake hole 32a opens at the tip of the nozzle 30.
- a pair of stopper ribs 16 are formed on the inner peripheral surface of the inner cylinder 14, i.e., from the inner surface of the liquid fuel flow path toward the inside.
- the pair of stopper ribs 16 protrude inward toward each other from the inner side surface of the inner cylinder 14 when the assembly 1 is installed on the vehicle.
- the shortest distance between the pair of stopper ribs 16 is set to be smaller than the tip outer diameter of the nozzle 30, as shown in FIG. 2.
- the pair of stopper ribs 16 abut against the nozzle 30 to regulate the insertion depth of the nozzle 30.
- the edge of the stopper rib 16 that abuts against the tip of the nozzle 30 is located within the gradual change range of the inner diameter of the inner cylinder 14 described above.
- the stopper rib 16 extends to the discharge port 14a. Note that FIG. 2 shows only the cross section of the main body 10, and does not show the fuel supply pipe 2.
- the nozzle 30 When refueling, the nozzle 30 is inserted into the body 10 through the fuel filler opening 10a. The nozzle 30 pushes open the outer flap valve 11 and the inner flap valve 12 in turn, and the tip of the nozzle 30 is inserted into the inner tube 14.
- the nozzle 30 of the fuel gun 3 is curved downward, and the tip of the nozzle 30 is inserted further into the inner tube 14 while being guided by contacting the upper edges of the pair of guide ribs 15. Since the tip of the nozzle 30 is guided by the pair of guide ribs 15, it reliably abuts against the pair of stopper ribs 16.
- the shortest distance between the pair of stopper ribs 16 is set smaller than the outer diameter of the tip of the nozzle 30, even if the guide by the guide ribs 15 does not function effectively, the tip of the nozzle 30 reliably abuts against at least one of the stopper ribs 16. As a result, the insertion depth of the nozzle 30 is regulated.
- the intake hole 32a opened at the tip of the nozzle 30 is also sufficiently separated from these inner peripheral surfaces. Even if the fuel gun 3 is rotated slightly around the axis of the nozzle 30 when inserting the nozzle 30, the intake hole 32a is sufficiently separated from the inner peripheral surface.
- the liquid fuel discharged through the flow path 31 of the nozzle 30 may collide with the inner peripheral surface, disrupting the flow of the liquid fuel, causing the intake hole 32a to be blocked by the liquid fuel and causing the automatic stop to malfunction.
- the intake hole 32a is sufficiently separated from the inner peripheral surface, so that malfunction is avoided.
- the nozzle 30 may be curved, causing the intake hole 32a to come into contact with the inner circumferential surface, or the distance between the intake hole 32a and the inner circumferential surface to become very short.
- the nozzle 30 is restricted in its insertion depth, so that the intake hole 32a and the inner circumferential surface can be sufficiently separated.
- a pair of guide ribs 15 are formed, so that the intake hole 32a and the inner circumferential surface can be reliably separated.
- a notch 14c is formed at the back of the guide rib 15, so that the inner circumferential surface of the inner tube 14 is not present below the tip of the nozzle 30, and the distance between the nozzle 30 and the inner circumferential surface of the outer tube 13 is sufficiently secured. Even if the intake hole 32a is not opened at the tip of the nozzle 30 as in this embodiment, but is opened on the outer circumferential surface near the tip of the nozzle 30, the automatic stop malfunction is similarly avoided.
- a pair of stopper ribs 16 facing each other are formed.
- a single stopper rib 16 is formed.
- the shortest distance between the stopper rib 16 and the inner surface of the liquid fuel flow path (the inner peripheral surface of the inner cylinder 14) facing the tip of the stopper rib 16 is set to be smaller than the outer diameter of the tip of the nozzle 30.
- the insertion of the nozzle 30 is guided by a pair of guide ribs 15, but the tip of the nozzle 30 abuts against the stopper rib 16, restricting the insertion depth of the nozzle 30.
- the shortest distance between the stopper rib 16 and the inner surface of the liquid fuel flow path (the inner peripheral surface of the inner cylinder 14) facing the tip of the stopper rib 16 is set to be smaller than the outer diameter of the tip of the nozzle 30. Therefore, even if the tip of the nozzle 30 is displaced in the radial direction as shown in FIG. 3, the tip of the nozzle 30 reliably abuts against the stopper rib 16. As a result, the insertion depth of the nozzle 30 is restricted, and the intake hole 32a is sufficiently separated from the inner peripheral surface, thereby avoiding malfunction.
- the guide rib 15 and the notch 14c are formed, but in this embodiment, they are not formed. Forming the guide rib 15 and the notch 14c is preferable because it makes it possible to more reliably separate the intake hole 32a from the inner peripheral surface. However, the guide rib 15 and the notch 14c do not have to be formed as in this embodiment. Since the shortest distance between the pair of stopper ribs 16 is set to be smaller than the tip outer diameter of the nozzle 30, the tip of the nozzle 30 reliably abuts at least one of the stopper ribs 16 even without guidance by the guide rib 15. As a result, the insertion depth of the nozzle 30 is regulated and the intake hole 32a is sufficiently separated from the inner peripheral surface, thereby avoiding malfunction.
- the guide rib 15 and the notch 14c are formed, but in this embodiment, they are not formed.
- the guide rib 15 and the notch 14c are preferably formed because they can more reliably separate the intake hole 32a from the inner peripheral surface, but they do not have to be formed.
- the tip of the nozzle 30 abuts against the stopper rib 16, and the insertion depth of the nozzle 30 is regulated.
- the shortest distance between the stopper rib 16 and the inner surface of the liquid fuel flow path (the inner peripheral surface of the inner cylinder 14) facing the tip of the stopper rib 16 is set to be smaller than the tip outer diameter of the nozzle 30. Therefore, even if the tip of the nozzle 30 is shifted in the radial direction as shown in FIG. 5, the tip of the nozzle 30 abuts against the stopper rib 16 reliably.
- the insertion depth of the nozzle 30 is regulated and the intake hole 32a is sufficiently separated from the inner peripheral surface, so that malfunction is avoided.
- the end of the stopper rib 16 is arranged within the gradual change range of the inner diameter of the outer tube 13 and the inner tube 14.
- the intake hole 32a is arranged near the tip of the nozzle 30 on the inside of the curve, but when the nozzle 30 is inserted all the way, the nozzle 30 is likely to be fixed with the intake hole 32a in contact with the inner surface due to the curvature of the nozzle 30 and the reduction in the inner diameter of the flow path.
- the end of the stopper rib 16 is arranged within the gradual change range, the insertion depth of the nozzle 30 is restricted, and it is easy to avoid maintaining the contact state between the intake hole 32a and the inner surface.
- the nozzle 30 since the nozzle 30 is not inserted deep, it is possible to avoid the position of the nozzle 30 being fixed even if the nozzle 30 is curved without being affected by the reduction in the inner diameter of the flow path. Therefore, even when the tip of the nozzle 30 is in contact with the stopper rib 16, the tip of the nozzle 30 can be shifted radially to separate the intake hole 32a from the inner surface, and malfunctions can be more reliably avoided.
- the pair of stopper ribs 16 protrude inward from the side wall surface, not from the bottom wall surface of the inner cylinder 14, when the assembly 1 (1X-1Z) is attached to the vehicle. Therefore, when the nozzle 30 is inserted, the stopper ribs 16 are not positioned near the intake hole 32a located below, and the stopper ribs 16 do not obstruct the flow of liquid fuel, causing the liquid fuel to block the intake hole 32a.
- a pair of stopper ribs 16 are provided that protrude inward from the inner surface (the inner circumferential surface of the inner cylinder 14) of the liquid fuel flow path formed inside the main body 10.
- the pair of stopper ribs 16 protrude toward each other.
- the shortest distance between the pair of stopper ribs 16 is set to be smaller than the outer diameter of the tip of the nozzle 30. Therefore, the pair of opposing stopper ribs 16 regulates the insertion depth of the nozzle 30, and the intake hole 32a of the nozzle 30 and the inner surface of the flow path (the inner circumferential surface of the inner cylinder 14) can be sufficiently separated.
- At least one stopper rib 16 protrudes inward from the inner surface (the inner circumferential surface of the inner cylinder 14) of the liquid fuel flow path formed inside the main body 10.
- the shortest distance between the stopper rib 16 and the inner surface of the flow path (the inner circumferential surface of the inner cylinder 14) facing the tip of the stopper rib 16 is set to be smaller than the tip outer diameter of the nozzle 30. Therefore, the insertion depth of the nozzle 30 is restricted by the stopper rib 16, and the intake hole 32a and the inner surface of the flow path (the inner circumferential surface of the inner cylinder 14) can be sufficiently separated.
- a pair of guide ribs 15 that are parallel to the flow path and guide the insertion of the nozzle 30 are formed on the inner surface of the flow path (the inner circumferential surface of the inner tube 14). Because the guide ribs 15 guide the insertion of the nozzle 30, the tip of the nozzle 30 can more reliably abut against the stopper rib 16, making it possible to more reliably avoid malfunction of the automatic stop function of the refueling machine.
- the guide ribs 15 can reliably separate the intake hole 32a of the nozzle 30 from the inner surface of the flow path (the inner circumferential surface of the inner tube 14), making it possible to more reliably avoid malfunction of the automatic stop function of the refueling machine.
- the present invention is not limited to the above-described embodiment.
- at least one stopper rib 16 may be provided, and two stopper ribs 16 may be provided as in the first embodiment and its modified examples, or three or more stopper ribs 16 may be provided.
- the above-described advantages are obtained by providing them opposite each other as in the first embodiment and its modified examples.
- the inner flap valve 12 is also provided in addition to the outer flap valve 11 that opens and closes the fuel filler port 10a.
- the inner flap valve 12 may not be provided and only the outer flap valve 11 that opens and closes the fuel filler port 10a may be provided.
- the main body 10 has a double-cylinder structure formed by the outer cylinder 13 and the inner cylinder 14, but it may have a short cylinder structure instead of a double-cylinder structure.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
2 給油管
3 給油ガン
10 本体
10a 給油口
11 外側フラップバルブ
15 ガイドリブ
16 ストッパリブ
30 (給油ガン3の)ノズル
32a (ノズル30の)吸気孔
Claims (4)
- 燃料タンクから延設された給油管の先端に取り付けられるキャップレス給油アッセンブリであって、
給油ガンのノズルが挿入される給油口が形成された本体と、
前記本体の内部に開閉可能に設けられた、前記給油口を開閉するフラップバルブと、
前記本体の内部に形成される液体燃料の流路の内面から内方に向けて突出され、前記ノズルの挿入深さを規制する一対のストッパリブと、を備えており、
前記一対のストッパリブは、互いに相手に向けて内方に突出されており、
前記一対のストッパリブの間の最短距離が、前記ノズルの先端外径よりも小さく設定されている、キャップレス給油アッセンブリ。 - 請求項1に記載のキャップレス給油アッセンブリであって、
前記流路の前記内面上に、前記ノズルの挿入を案内する、前記流路に平行な一対のガイドリブが形成されている、キャップレス給油アッセンブリ。 - 燃料タンクから延設された給油管の先端に取り付けられるキャップレス給油アッセンブリであって、
給油ガンのノズルが挿入される給油口が形成された本体と、
前記本体の内部に開閉可能に設けられた、前記給油口を開閉するフラップバルブと、
前記本体の内部に形成される液体燃料の流路の内面から内方に向けて突出され、前記ノズルの挿入深さを規制する少なくとも一つのストッパリブと、を備えており、
前記ストッパリブと当該ストッパリブの先端に対向する前記流路の前記内面との最短距離が、前記ノズルの先端外径よりも小さく設定されている、キャップレス給油アッセンブリ。 - 請求項3に記載のキャップレス給油アッセンブリであって、
前記流路の前記内面上に、前記ノズルの挿入を案内する、前記流路に平行な一対のガイドリブが形成されている、キャップレス給油アッセンブリ。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2022/036583 WO2024069893A1 (ja) | 2022-09-29 | 2022-09-29 | キャップレス給油アッセンブリ |
| JP2024548997A JPWO2024069893A1 (ja) | 2022-09-29 | 2022-09-29 | |
| CN202280100517.0A CN119947912A (zh) | 2022-09-29 | 2022-09-29 | 无盖加油组件 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2022/036583 WO2024069893A1 (ja) | 2022-09-29 | 2022-09-29 | キャップレス給油アッセンブリ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024069893A1 true WO2024069893A1 (ja) | 2024-04-04 |
Family
ID=90476875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/036583 Ceased WO2024069893A1 (ja) | 2022-09-29 | 2022-09-29 | キャップレス給油アッセンブリ |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2024069893A1 (ja) |
| CN (1) | CN119947912A (ja) |
| WO (1) | WO2024069893A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010195062A (ja) * | 2009-02-23 | 2010-09-09 | Honda Motor Co Ltd | 燃料タンク |
| JP2012144152A (ja) * | 2011-01-12 | 2012-08-02 | Toyota Motor Corp | 燃料タンクの給油部構造 |
| JP2017065288A (ja) * | 2015-09-28 | 2017-04-06 | 豊田合成株式会社 | 燃料供給装置 |
| US20170305737A1 (en) * | 2016-04-21 | 2017-10-26 | Ameri-Kart | Direct fill fueling systems and devices |
| US20190255939A1 (en) * | 2018-02-21 | 2019-08-22 | Ford Global Technologies, Llc | Nozzle guide for vehicle refueling adapter |
-
2022
- 2022-09-29 JP JP2024548997A patent/JPWO2024069893A1/ja active Pending
- 2022-09-29 CN CN202280100517.0A patent/CN119947912A/zh active Pending
- 2022-09-29 WO PCT/JP2022/036583 patent/WO2024069893A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010195062A (ja) * | 2009-02-23 | 2010-09-09 | Honda Motor Co Ltd | 燃料タンク |
| JP2012144152A (ja) * | 2011-01-12 | 2012-08-02 | Toyota Motor Corp | 燃料タンクの給油部構造 |
| JP2017065288A (ja) * | 2015-09-28 | 2017-04-06 | 豊田合成株式会社 | 燃料供給装置 |
| US20170305737A1 (en) * | 2016-04-21 | 2017-10-26 | Ameri-Kart | Direct fill fueling systems and devices |
| US20190255939A1 (en) * | 2018-02-21 | 2019-08-22 | Ford Global Technologies, Llc | Nozzle guide for vehicle refueling adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119947912A (zh) | 2025-05-06 |
| JPWO2024069893A1 (ja) | 2024-04-04 |
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