EP1633973B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

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Publication number
EP1633973B1
EP1633973B1 EP04726088A EP04726088A EP1633973B1 EP 1633973 B1 EP1633973 B1 EP 1633973B1 EP 04726088 A EP04726088 A EP 04726088A EP 04726088 A EP04726088 A EP 04726088A EP 1633973 B1 EP1633973 B1 EP 1633973B1
Authority
EP
European Patent Office
Prior art keywords
fuel
region
injection valve
fuel injection
outlet region
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 - Fee Related
Application number
EP04726088A
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German (de)
English (en)
Other versions
EP1633973A1 (fr
Inventor
Volker Holzgrefe
Stefan Arndt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1633973A1 publication Critical patent/EP1633973A1/fr
Application granted granted Critical
Publication of EP1633973B1 publication Critical patent/EP1633973B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1846—Dimensional characteristics of discharge orifices
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
    • 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
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve

Definitions

  • the invention relates to a fuel injection valve according to the preamble of the main claim.
  • a fuel injection valve which has a stepped injection opening.
  • the ejection opening is divided into a through-hole and a discharge-side or outflow-side exit region, the exit region being different in shape, contour and size from the through-hole.
  • a disadvantage of the fuel injection valve known from the above publication is that in a correspondingly expanded, emerging from the through hole fuel jet parts of the outlet region of the fuel steel can be directly applied with fuel. In addition, remains at a similar in contour and size of the fuel jet outlet area no other volume in the exit area. Due to both disadvantages, fuel remains in the region of the injection opening after the injection process, since hardly any gas vortices can form which clears fuel from the region of the injection opening after completion of the injection process. After short Operating time form so combustion deposits, which adversely affect the further operation of the fuel injection valve. In addition, the fuel residues remaining in the region of the injection opening after the injection process increase the exhaust gas values and the fuel consumption.
  • the length / width ratio and the fuel pressure can be adapted insufficiently to the various requirements of various internal combustion engines.
  • a fuel injector having a valve body, a fixed valve seat having a single spray channel, and a movable closure member engaging an inlet end of the channel.
  • the ejection channel is arranged obliquely at least at its outlet end relative to the closing element, and the closing element has a tip in the form of a spherical segment, at least a portion of which comes into contact with the pressure surface of the valve seat.
  • the outlet end of the injector has a guide above the valve seat and includes a vortex generator between the guide and the valve seat.
  • US 2003/015609 A1 describes a fuel injector having a nozzle bottom having at least four nozzle hole groups through which fuel streams are injected and collide with each other.
  • the nozzle hole groups are arranged in two aggregates so that collided fuel streams are merged and directed in two different directions to achieve improved atomization.
  • a perforated disc is attached to the tip of the fuel injection valve to cover a fuel passage hole.
  • the perforated disc is to be produced by means of a simplified manufacturing process can be produced. Therefore, the disc is composed of multiple layers, each having a number of holes, but in a staggered position relative to each other.
  • the perforated disks are fixed in the valve body by means of a plate holder, which forms a space into which the fuel jet or the fuel jets emerge during the injection process.
  • EP-A-0 116 864 describes a fuel injector in which the dome is reinforced to avoid dome fracture and to avoid the resulting extension of the injection holes they are divided into two sections, one determined by the injection law fixed cross-section and an outwardly adjoining section of larger cross section, the has no influence on the injection jet.
  • GB 258 431 A describes a valve in which a ball closure is used to control the supply of a liquid to the openings of a nebulizer.
  • the injection opening opens into a hemispherical or downwardly opening conical space.
  • GB 185 640 A discloses an injection valve by means of which the fuel supply is to be defined precisely in time. Fuel is supplied to an annular array of fuel outlets, which are provided in a nozzle bottom and whose number, shape and area controls the amount of fuel that is to be injected within a certain time limit.
  • the fuel injection valve according to the invention with the characterizing features of the main claim has the advantage that fuel deposits in the region of the injection opening can be effectively prevented.
  • the length / width ratio of the ejection opening and the fuel pressure can be freely changed while maintaining the gap size and selected.
  • the adaptation of the injection behavior of the fuel injection valve to different internal combustion engines can be done in a particularly simple manner. Atomization, emissions and fuel consumption are improved.
  • the remaining first volume is dimensioned according to the equation given in claim 2 and the gap dimension is not greater than 0.3 mm and not less than 0.1 mm, since in this way also for different geometries of the ejection opening or the outlet region optimally appropriate first volume is achieved. An optimal vortex formation in the first volume is ensured and a suction effect between the inner walls of the Outlet area and the fuel jet are reliably prevented.
  • the guide region and the outlet region are arranged coaxially with one another. This supports a particularly uniform vortex formation in the first volume.
  • the fuel jet can be performed in an advantageous manner.
  • the geometry of the fuel jet can thereby be adapted to the geometry of the exit region.
  • the exit region can be produced particularly easily.
  • the vortex formation can likewise be assisted.
  • FIG. 1 illustrated first embodiment of a fuel injection valve 1 is carried out in the form of a fuel injection valve 1 for fuel injection systems of mixture-compression, spark-ignition internal combustion engines.
  • the fuel injection valve 1 is suitable in particular for the direct injection of fuel into a combustion chamber, not shown, of an internal combustion engine.
  • the fuel injection valve 1 consists of a nozzle body 2, in which a valve needle 3 is arranged.
  • the valve needle 3 is operatively connected to a valve closing body 4 which cooperates with a valve seat surface 6 arranged on a valve seat body 5 to form a sealing seat.
  • the fuel injection valve 1 is an inwardly opening fuel injection valve 1, which has an injection opening 7 produced, for example, by a simple bore.
  • the nozzle body 2 is sealed by a seal 8 against an outer pole 9 of a magnetic coil 10.
  • the magnetic coil 10 is encapsulated in a coil housing 11 and wound on a bobbin 12, which rests against an inner pole 13 of the magnetic coil 10.
  • Inner pole 13 and the outer pole 9 are separated by a constriction 26 and connected to each other by a non-ferromagnetic connecting member 29.
  • the magnetic coil 10 is energized via a line 19 from a via an electrical plug contact 17 can be supplied with electric current.
  • the plug contact 17 is surrounded by a plastic casing 18, which may be molded on the inner pole 13.
  • valve needle 3 is guided in a valve needle guide 14, which is designed disk-shaped.
  • armature 20 On the other side of the dial 15 is the armature 20. This is connected via a first flange 21 frictionally with the valve needle 3 in connection, which is connected by a weld 22 with the first flange 21.
  • a return spring 23 On the first flange 21, a return spring 23 is supported, which is brought in the present design of the fuel injection valve 1 by a sleeve 24 to bias.
  • valve needle guide 14 in the armature 20 and on a guide element 36 extend fuel channels 30, 31 and 32.
  • the fuel is supplied via a central fuel supply 16 and filtered by a filter element 25.
  • the fuel injection valve 1 is sealed by a seal 28 against a fuel distributor line, not shown, and by a further seal 37 against a cylinder head not shown.
  • annular damping element 33 On the discharge side of the armature 20, an annular damping element 33, which consists of an elastomer material, arranged. It rests on a second flange 34, which is materially connected to the valve needle 3 via a weld seam 35.
  • the armature 20 In the resting state of the fuel injection valve 1, the armature 20 is acted upon by the return spring 23 counter to its stroke direction so that the valve closing body. 4 is held in sealing contact with the valve seat surface 6. Upon energization of the solenoid coil 10, this builds up a magnetic field, which moves the armature 20 against the spring force of the return spring 23 in the stroke direction, wherein the stroke is determined by a located in the rest position between the inner pole 12 and the armature 20 working gap 27.
  • the armature 20 takes the first flange 21, which is welded to the valve needle 3, also in the stroke direction with.
  • the valve closing body 4 communicating with the valve needle 3 lifts off from the valve seat surface 6, and the fuel is sprayed through the injection opening 7.
  • the armature 20 drops after sufficient degradation of the magnetic field by the pressure of the return spring 23 from the inner pole 13, whereby the valve connected to the needle 3 in communication first flange 21 moves against the stroke direction.
  • the valve needle 3 is thereby moved in the same direction, whereby the valve closing body 4 touches on the valve seat surface 6 and the fuel injection valve 1 is closed.
  • Fig. 2 shows a schematic section through a first embodiment of the fuel injection valve 1 according to the invention in the region of the ejection opening 7.
  • the ejection opening 7 consists of an inflow-side arranged guide region 38 and a spout 40 and a first stage 41 to ejection side arranged discharge region 39.
  • the right-angled step 41st widens the guide region 38 after the transition 40 into a cylindrical discharge region 39.
  • the guide portion 38 and the exit portion 39 are arranged coaxially with each other.
  • a fuel jet 42 emerging from the guide region 38 into the outlet region 39 or into the combustion chamber, not shown, is represented by dashed lines.
  • the fuel jet 42 expands upon exiting the guide area 38 from the Transition 40 with a beam angle 46 cone-shaped.
  • the fuel jet 42 emerges coaxially from the guide region 38, wherein the outer limits of the fuel jet 42 emerge from the outlet region 39 at a downstream end 43 of the outlet region 39 while maintaining a gap 44 with a gap 47.
  • the gap 47 is greater than 0.
  • the gap 44 with the gap 47 occurs at the shortest distance between the fuel jet 42 and the discharge-side end 43.
  • the outer boundary of the fuel steel 42 sets between the transition 40 and the gap 44 a distance s back.
  • a first volume 45 remains unaffected by the fuel jet 42 during the injection process in the outlet region 39.
  • the pressure in the first volume 45 is lowered and thus the evaporation of the fuel is promoted ,
  • a longitudinal cross-sectional area Ag occurring in a longitudinal section of the first volume 45 has centers of gravity 48 whose spacing represents a first diameter D.
  • the planar longitudinal section is effected on a center axis (not shown) of the exit region 39.
  • a second diameter d likewise occurs in such a longitudinal section between two points which lie at the outer limits of the fuel jet 42 at half the distance s.
  • the gap dimension is between 0.1 mm and 0.3 mm, preferably 0.2 mm.
  • the one first volume-characterizing characteristic number B at least 0.5 maximum but 2.5, preferably 1.5.
  • Fig. 3 shows a schematic section through a second embodiment of the fuel injection valve 1 according to the invention in the region of the injection opening 7, the same effect from the first embodiment Fig. 2 is, however, designed in two-part design.
  • the guide region 38 projects into the exit region 39, with the transition 40 widening conically in the direction of discharge.
  • the discharge region 39 extends from the discharge-side end of the transition 40 initially counter to the discharge direction, in order then to pass into a cylindrical region, which continues up to the discharge-side end 43 of the discharge region 39.
  • the invention is not limited to the illustrated embodiments and z. B. also suitable for outward opening fuel injectors or multi-hole valves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (8)

  1. Injecteur de carburant notamment pour l'injection directe de carburant dans une chambre de combustion de moteur à combustion interne comprenant
    un organe d'obturation de soupape (4) coopérant avec une surface formant siège de soupape (6) réalisé sur un corps de siège de soupape (5) pour former un siège d'étanchéité ainsi qu'au moins un orifice d'éjection (7) en aval du siège d'étanchéité, muni d'une zone de guidage (38) et d'une zone de sortie (39) à son extrémité côté éjection,
    la zone de sortie (39) s'élargit à partir de la transition (40) entre la zone de guidage (38) et la zone de sortie (39), de façon étagée, par au moins un premier gradin (41) et/ou au moins en partie de façon continue,
    un jet de carburant (40) sortant de la zone de guidage (38) pour la jonction (40), s'élargit pratiquement de façon régulière suivant un angle de jet (46) et passe l'extrémité, côté sortie, (43) de la zone de sortie (39) à une distance (47) d'un intervalle (44) après un trajet S,
    et la distance d'intervalle (47) est supérieure à 0 et dans la zone de sortie (39) entre le jet de carburant (42) et les parois intérieures de la zone de sortie (39), il subsiste un premier volume (45),
    caractérisé en ce que
    le premier volume (45) a une surface de section longitudinale (Ag) et un nombre caractéristique (B) caractérisant le premier volume (45), ce nombre (Bà étant donné par l'équation suivante, B = / D ⋅ π ⋅ Ag / | / d ⋅ π ⋅ s /
    Figure imgb0004
    dans laquelle D représente un premier diamètre (D) entre les centres de gravité (48) de la section longitudinale Ag,
    d est un second diamètre (d) du jet de carburant (42) à mi-distance S
    et le nombre caractéristique B n'est ni inférieur à 0,5 et ni supérieur à 2,5.
  2. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    la distance d'intervalle (47) n'est ni supérieure à 0,3 mm et ni inférieure à 0, 1 mm.
  3. Injecteur de carburant selon la revendication 1 ou 2,
    caractérisé en ce que
    la zone de guidage (38) et la zone de sortie (49) sont coaxiales.
  4. Injecteur de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    la transition (40) s'élargit en forme de cône dans la direction d'éjection.
  5. Injecteur de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    la zone de sortie (39) est de forme cylindrique.
  6. Injecteur de carburant selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la zone de guidage (30) pénètre dans la zone de sortie (39).
  7. Injecteur de carburant selon la revendication 6,
    caractérisé en ce que
    l'extrémité côté éjection de la transition (40) de la zone de sortie (39) s'élargit tout d'abord en continu dans la direction opposée à la direction d'éjection.
  8. Injecteur de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    la zone de sortie (39) est de forme cylindrique dans la zone de l'extrémité (43), côté sortie.
EP04726088A 2003-06-04 2004-04-07 Soupape d'injection de carburant Expired - Fee Related EP1633973B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10325289A DE10325289A1 (de) 2003-06-04 2003-06-04 Brennstoffeinspritzventil
PCT/DE2004/000727 WO2004109094A1 (fr) 2003-06-04 2004-04-07 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP1633973A1 EP1633973A1 (fr) 2006-03-15
EP1633973B1 true EP1633973B1 (fr) 2008-05-14

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Application Number Title Priority Date Filing Date
EP04726088A Expired - Fee Related EP1633973B1 (fr) 2003-06-04 2004-04-07 Soupape d'injection de carburant

Country Status (7)

Country Link
US (1) US7234654B2 (fr)
EP (1) EP1633973B1 (fr)
JP (1) JP4210685B2 (fr)
CN (1) CN100447401C (fr)
DE (2) DE10325289A1 (fr)
ES (1) ES2303632T3 (fr)
WO (1) WO2004109094A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4528701B2 (ja) * 2005-09-13 2010-08-18 日立オートモティブシステムズ株式会社 噴射弁及びオリフィスの加工方法
JP5119187B2 (ja) * 2009-03-16 2013-01-16 日立オートモティブシステムズ株式会社 オリフィスの加工方法
KR20120061640A (ko) * 2010-12-03 2012-06-13 현대자동차주식회사 노킹 방지 장치 및 이를 제어하는 방법
DE102012221713A1 (de) * 2012-11-28 2014-05-28 Robert Bosch Gmbh Einspritzventil
DE102013010552A1 (de) * 2013-06-15 2014-12-18 Volkswagen Aktiengesellschaft Einspritzvorrichtung
JP2015094234A (ja) 2013-11-08 2015-05-18 株式会社デンソー 燃料噴射弁
JP6080087B2 (ja) * 2014-02-28 2017-02-15 株式会社デンソー 燃料噴射弁
JP2015224618A (ja) * 2014-05-29 2015-12-14 トヨタ自動車株式会社 燃料噴射弁
JP6023151B2 (ja) * 2014-11-07 2016-11-09 トヨタ自動車株式会社 燃料噴射弁

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB185640A (en) * 1921-09-16 1922-09-14 Vilhelm Mickelsen Improvements relating to the injection of liquid fuel in internal combustion engines
GB258431A (en) * 1925-09-29 1926-09-23 Herbert Vincent Senior Improvements in or relating to spraying nozzles for liquids
FR733591A (fr) 1931-06-10 1932-10-07 Dispositif d'injection notamment pour moteurs à combustion
DE2517682C3 (de) * 1975-04-22 1980-09-11 Daimler-Benz Ag, 7000 Stuttgart Einspritzventil für Brennkraftmaschinen
JPS5412626U (fr) * 1977-06-29 1979-01-26
DE3306078A1 (de) 1983-02-22 1984-08-23 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffeinspritzduese fuer brennkraftmaschinen
JPS60171957U (ja) * 1984-04-24 1985-11-14 日産自動車株式会社 デイ−ゼルエンジンのホ−ル型燃料噴射ノズル
JP2662041B2 (ja) * 1989-07-28 1997-10-08 株式会社日立製作所 レーザビームを用いた孔あけ加工法及びこれを利用した燃料噴射弁のノズルの製造方法
JPH03160151A (ja) 1989-11-15 1991-07-10 Aisan Ind Co Ltd 電磁式燃料噴射弁
IT223984Z2 (it) 1990-01-17 1995-10-05 Weber Srl Valvola di un dispositivo di alimentazione di un motore a combustione interna
JPH06101598A (ja) 1992-09-17 1994-04-12 Hitachi Ltd 電磁式燃料噴射装置
DE4239110A1 (de) * 1992-11-20 1994-05-26 Bosch Gmbh Robert Brennstoffeinspritzventil
US5381965A (en) * 1993-02-16 1995-01-17 Siemens Automotive L.P. Fuel injector
FR2727721A1 (fr) * 1994-12-01 1996-06-07 Magneti Marelli France Injecteur a jupe de dispersion de carburant
DE19503224A1 (de) 1995-02-02 1996-08-08 Bosch Gmbh Robert Elektromagnetisch betätigbares Einspritzventil für Kraftstoffeinspritzanlagen von Verbrennungsmotoren
US5692723A (en) * 1995-06-06 1997-12-02 Sagem-Lucas, Inc. Electromagnetically actuated disc-type valve
JPH09126087A (ja) * 1995-10-31 1997-05-13 Mitsubishi Electric Corp 筒内噴射用燃料噴射弁
JPH10288129A (ja) * 1997-04-17 1998-10-27 Nissan Motor Co Ltd 噴射弁
JPH1182229A (ja) * 1997-09-08 1999-03-26 Unisia Jecs Corp フューエルインジェクタ
FR2773852B1 (fr) * 1998-01-20 2000-03-24 Sagem Injecteur de carburant pour moteur a combustion interne a allumage commande
JP2000314360A (ja) 1999-04-30 2000-11-14 Aisan Ind Co Ltd 燃料噴射弁
US6334580B2 (en) * 1999-05-26 2002-01-01 Siemens Automotive Corporation Gaseous injector with columnated jet oriface flow directing device
DE19937961A1 (de) 1999-08-11 2001-02-15 Bosch Gmbh Robert Brennstoffeinspritzventil und Verfahren zur Herstellung von Austrittsöffnungen an Ventilen
DE10038098A1 (de) * 2000-08-04 2002-02-14 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10038097A1 (de) * 2000-08-04 2002-02-14 Bosch Gmbh Robert Brennstoffeinspritzventil
JP3847564B2 (ja) 2001-01-30 2006-11-22 株式会社日立製作所 燃料噴射弁
JP3865603B2 (ja) * 2001-07-13 2007-01-10 株式会社日立製作所 燃料噴射弁
JP2003254190A (ja) * 2002-03-04 2003-09-10 Aisan Ind Co Ltd オリフィスプレート

Also Published As

Publication number Publication date
CN1798920A (zh) 2006-07-05
ES2303632T3 (es) 2008-08-16
WO2004109094A1 (fr) 2004-12-16
EP1633973A1 (fr) 2006-03-15
US7234654B2 (en) 2007-06-26
DE10325289A1 (de) 2005-03-17
DE502004007150D1 (de) 2008-06-26
JP2006510849A (ja) 2006-03-30
JP4210685B2 (ja) 2009-01-21
CN100447401C (zh) 2008-12-31
US20060226263A1 (en) 2006-10-12

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