EP1636483B1 - Soupape permettant de commander le passage de liquides - Google Patents

Soupape permettant de commander le passage de liquides Download PDF

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Publication number
EP1636483B1
EP1636483B1 EP04721823A EP04721823A EP1636483B1 EP 1636483 B1 EP1636483 B1 EP 1636483B1 EP 04721823 A EP04721823 A EP 04721823A EP 04721823 A EP04721823 A EP 04721823A EP 1636483 B1 EP1636483 B1 EP 1636483B1
Authority
EP
European Patent Office
Prior art keywords
valve
seal
piston
receiving space
diameter
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
Application number
EP04721823A
Other languages
German (de)
English (en)
Other versions
EP1636483A1 (fr
Inventor
Siegfried Ruthardt
Bernd Streicher
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1636483A1 publication Critical patent/EP1636483A1/fr
Application granted granted Critical
Publication of EP1636483B1 publication Critical patent/EP1636483B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
    • F02M2200/215—Piezoelectric or magnetostrictive elements being able to tilt in its housing
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
    • F02M57/024—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical with hydraulic link for varying the piston stroke

Definitions

  • the invention is based on a valve for controlling fluids according to the closer defined in the preamble of claim 1. Art.
  • Such a valve is known from practice and serves for example as a control module of a fuel injection valve, in particular a common rail injector for a diesel engine of a motor vehicle.
  • the valve designed as a control module comprises a housing serving as a holding body, in which a receiving space for a piezoelectric actuator unit and a hydraulic coupler module is formed.
  • the hydraulic coupler module comprises a control piston, which is actuated by means of the actuator unit, and an actuating piston, which via a hydraulic coupler is operatively connected to the actuating piston and acts on a valve closure member which cooperates with at least one valve seat. In the closed position, the valve closure member blocks fluid flow from a valve space to a return passage.
  • a pressure relief takes place in the valve chamber and thus in a valve chamber connected to the valve control chamber, which serves to actuate a valve control piston or a nozzle needle.
  • the valve control chamber and the valve control piston are associated with a nozzle module of the injection valve, at the tip of nozzles for injecting fuel into a combustion chamber of an internal combustion engine are arranged.
  • the valve control space encloses the free end of the valve spool and is connected to a high pressure port via a fuel supply line to contain fuel.
  • the position of the valve spool can be changed and so the fuel injection can be controlled, which takes place via the leading to the combustion chamber of the internal combustion engine openings of the injector.
  • the position of the valve control piston and thus that of the nozzle needle is thus determined with the control module.
  • the valve chamber of the control module and the valve control chamber of the nozzle module are connected to each other via an outlet throttle.
  • the coupler module and the piezoelectric actuator unit are immersed in the operation of fuel. This is necessary with the hydraulic coupler module since arranged between the actuator piston and the actuating piston of the hydraulic cushion designed as a hydraulic coupler, which loses hydraulic fluid or fuel during actuation via a leak and then has to be refilled, which takes place by means of the surrounding the coupler module fuel.
  • the piezoelectric actuator unit comprises a piezoelectric actuator, which must not come into contact with fuel. For these reasons, the actuator unit so far has a complex designed sleeve whose tightness must also be checked before installation in the holding body.
  • a fluid control valve comprising an actuator unit and a coupler module having an actuator piston and an actuating piston disposed in a receiving space, the actuator unit actuating a valve closure member which in the closed position blocks fluid flow from a valve space to a return flow channel wherein the actuating piston is guided by means of two seals in the receiving space, so that the actuator unit is sealed against the ingress of fuel.
  • valve of the actuating piston is guided by means of a seal in the receiving space, has the advantage that Although a flushing of the hydraulic coupler module can be done with the liquid and thus a refilling of the hydraulic coupler is ensured, however, the portion of the receiving space in which the piezoelectric actuator unit is arranged, is sealed so that they do not come into contact with the liquid can. An encapsulation of the actuator unit is therefore no longer necessary.
  • the actuator unit can thus be designed without metal sleeve and without bellows or membrane for sealing. Also eliminates the previously required, elaborate laser welding work. Furthermore, the actuator unit no longer needs to be tested for its helium tightness prior to installation.
  • the valve according to the invention can be used in particular in an injection valve which is part of a common rail injection system of a diesel internal combustion engine of a motor vehicle.
  • the seal In the axial direction of the actuating piston, the seal is fixed to the actuating piston by being arranged between an annular collar of the actuating piston and a shim of the actuating piston.
  • any ring seal can be used as a seal, which can accommodate the stroke of the actuating piston.
  • the stroke of the actuating piston is, for example, a maximum of 50 microns in an injection valve.
  • the seal is designed as an O-ring seal or diaphragm or bellows seal.
  • the receiving space in the region of the coupler module is preferably formed stepped, with a first diameter and a second, compared to the first diameter reduced diameter, the seal in the area of the second diameter is arranged. The seal must then slide during assembly only over a short path along the wall of the receiving space along, which minimizes the risk of leaks.
  • the receiving space advantageously has an insertion bevel, which forms a transition between the area with the first diameter and the area with the second diameter and on which the seal slides during assembly in the direction of its installation position.
  • a fuel injection valve 10 is shown, which is designed for installation in an internal combustion engine of a motor vehicle not shown here and is used as a common rail injector for injecting preferably diesel fuel into a combustion chamber of the internal combustion engine.
  • the fuel injection valve 10 comprises for this purpose as essential units a nozzle module 11 and a valve control module 12.
  • the nozzle module 11 comprises a nozzle body 13, in which a so-called valve control piston 14 is guided axially displaceable, which forms a structural unit with a nozzle needle 15, by means of a to the combustion chamber of the internal combustion engine leading opening or nozzle 16 of the injection valve 10 is controllable.
  • valve spool 14 The free end of the valve spool 14 is guided in a sleeve 17 to which a valve spool 14 enclosing coil spring 18 is supported with one end, which is supported at its other end to a support 19 which is fixedly connected to the valve spool 14.
  • the nozzle module 11 is connected via a union nut 20 with the valve control module 12, wherein between the nozzle module 11 and the valve control module 12, a throttle plate 21 is arranged.
  • the throttle plate 21 defines together with the sleeve 17 and the valve spool 14 a valve control chamber 22.
  • the pressure conditions in the valve control chamber 22 determine the position of the valve spool 14 and the nozzle needle 15 fixed.
  • the valve control chamber 22 is connected via a feed passage 23 having a feed passage 24 for fuel with a high-pressure accumulator not shown here, the so-called common rail.
  • the fuel supply line 24 further leads fuel to the tip of the nozzle needle 15 so that it is injected upon release of the opening 16 through the nozzle needle 15 into the combustion chamber of the internal combustion engine.
  • valve control chamber 22 is further connected via a not visible in the drawing flow channel containing an outlet throttle, connected to a valve chamber 25, to the Also connected to the fuel supply line 24 bypass 26 leads and which is associated with the valve control module 12.
  • the inlet channel 23, leading to the valve chamber 25 drain passage and the bypass 26 pass through the throttle plate 21st
  • a valve closing member 27 is arranged, which is biased by a coil spring 28 in the direction away from the throttle plate 21 and with a first, formed as a flat seat valve seat 29 and a second, designed as a conical seat valve seat 30 cooperates.
  • the valve control module 12 further comprises a holding body 31, in which the fuel supply line 24 is formed and which has a receiving space 32 for a piezoelectric actuator unit 33 and a coupler module 34.
  • the piezoelectric actuator unit 33 is connected to electrical control lines 35 and is connected via an actuator head 36 with the hydraulic coupler module 34 in operative connection.
  • the hydraulic coupler module 34 comprises a first piston 37, referred to as an adjusting piston, which is in operative connection via a coupler 38 designed as a hydraulic pad to a second piston 39, referred to as an actuating piston, wherein the actuating piston 39 has a smaller diameter than the actuating piston 37.
  • the adjusting piston 37 and the actuating piston 39 are guided in a cylindrical sleeve 40 which rests on an intermediate plate 41 and are formed in the radial bores 42, the one downstream of the valve seat 30 arranged return space 43 with the outside of the cylindrical sleeve 40 connect. In the closed position, the valve closing member 27 blocks a fluid flow between the valve chamber 25 and the return chamber 43.
  • a return opening 44 branches off, which is formed in the holding body 31 and leads to a return line 45 likewise formed in the holding body 31 and oriented axially , which in turn leads to a fuel tank not shown here.
  • the return chamber 43 is thus connected via the radial bore 42 and not shown here breakthroughs of a rigid tube spring 47 to the return line 45.
  • the adjusting piston 37 on which the actuator head 36 engages via a bearing plate 51, is provided with an enlarged diameter in the region adjoining the bearing plate 51.
  • the adjusting piston 37 has an annular groove 49, in which an O-ring 50 serving as a seal is arranged, which rests against the wall of the receiving space 32.
  • the region of the receiving space 32, in which the actuator unit 33 is arranged is sealed relative to the region of the receiving space 32 in which the coupler module 34 is arranged.
  • the actuating piston 37 makes during operation of the inlet valve a stroke of about 50 microns maximum. This stroke can be offset by the elasticity of the material of which the O-ring 50 is formed.
  • a shim 46 is arranged, which rests on the concentric with the sleeve 40 arranged pipe spring 47 and by means of which the volume of the between the two pistons 37 and 39 arranged hydraulic coupler 38 is adjustable.
  • the receiving space 32 has a larger diameter in the region in which the tube spring 47 is arranged than in the region in which the O-ring 50 is arranged. Between the regions of different diameters, an insertion bevel 48 is arranged, which facilitates the assembly of the coupler module 34. The O-ring 50 slides on it in its mounting position. When assembled, the dial 46 is in the region of the insertion be 48th
  • FIG. 4 shows an alternative embodiment of a valve control module 60 of an injection valve of the type shown in FIG.
  • the valve control module 60 essentially corresponds to the valve control module shown in FIG. 2, but differs therefrom by a control piston 61, which on the side facing the actuator head 36 has an annular collar 62 which serves to fix an O-ring 50, which covers the region of the Receiving space 32, in which the actuator unit is arranged, seals against the region of the receiving space 32, in which the coupler module 34 is arranged.
  • the O-ring 50 further serves a shim 63, which serves to adjust the volume of the hydraulic coupler 38 and which rests on the tube spring 47.
  • the shim 63 and the O-ring 50 are in the area of reduced diameter of the receiving space 32 is arranged.
  • valve control module 60 corresponds to that of the valve control module according to FIG. 2.

Landscapes

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

Abstract

L'invention concerne une soupape permettant de commander le passage de liquides. Cette soupape comprend un corps de base (31) comportant un espace de réception (32) dans lequel une unité d'actionnement, en particulier piézoélectrique, et un module de couplage hydraulique (34) sont disposés, ce module comprenant au moins un piston de commande (37) et au moins un piston d'actionnement (39) qui coopère avec le piston de commande (37) par l'intermédiaire d'un coupleur hydraulique (38) et qui actionne un élément obturateur (27) de la soupape, lequel coopère avec au moins un siège (29, 30) de la soupape et, en position de fermeture, empêche qu'un fluide ne s'écoule entre une chambre (25) de la soupape et un canal de retour (45). Le piston de commande (37) est guidé dans l'espace de réception (32) au moyen d'un joint (50).

Claims (6)

  1. Soupape de commande du passage de liquides, comportant un corps de fixation (31) ayant une chambre de réception (32), logeant une unité d'actionneur en particulier piézoélectrique (33) et un module coupleur hydraulique (34) qui présente au moins un piston de réglage (37, 61) et au moins un piston d'actionnement (39) qui, en liaison active avec le piston de réglage (37, 61) par un coupleur hydraulique (38), actionne un organe de fermeture de soupape (27) coopèrant avec au moins un siège de soupape (29, 30) et qui, en position fermée, bloque un écoulement de fluide d'une chambre de soupape (25) à un canal de retour (45), le piston de réglage (37 61) étant guidé à l'aide d'un joint (50) dans la chambre de réception (32),
    caractérisée en ce que
    le joint (50) est monté entre une collerette annulaire (62) et une rondelle de réglage (63) du piston de réglage (61).
  2. Soupape selon la revendication 1,
    caractérisée en ce que
    le piston de réglage (37) présente une rainure annulaire (49) dans laquelle le joint (50) est fixé.
  3. Soupape selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que
    le joint (50) est un joint torique.
  4. Soupape selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que
    le joint est un joint à membrane ou joint à soufflet.
  5. Soupape selon l'une quelconque des revendications 1 à 4,
    caractérisée en ce que
    la chambre de réception (32) présente dans la zone du module coupleur (34) un premier diamètre et un second diamètre inférieur au premier diamètre, le joint (50) étant monté au niveau du second diamètre.
  6. Soupape selon la revendication 5,
    caractérisée en ce qu'
    un chanfrein d'insertion (48) relie les zones de la chambre de réception de diamètre différent.
EP04721823A 2003-05-20 2004-03-19 Soupape permettant de commander le passage de liquides Expired - Lifetime EP1636483B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322672A DE10322672A1 (de) 2003-05-20 2003-05-20 Ventil zum Steuern von Flüssigkeiten
PCT/DE2004/000566 WO2004104403A1 (fr) 2003-05-20 2004-03-19 Soupape permettant de commander le passage de liquides

Publications (2)

Publication Number Publication Date
EP1636483A1 EP1636483A1 (fr) 2006-03-22
EP1636483B1 true EP1636483B1 (fr) 2007-07-18

Family

ID=33441011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04721823A Expired - Lifetime EP1636483B1 (fr) 2003-05-20 2004-03-19 Soupape permettant de commander le passage de liquides

Country Status (7)

Country Link
US (1) US20060033062A1 (fr)
EP (1) EP1636483B1 (fr)
JP (1) JP2006529012A (fr)
KR (1) KR20060006969A (fr)
CN (1) CN1791744A (fr)
DE (2) DE10322672A1 (fr)
WO (1) WO2004104403A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233100A1 (de) * 2002-07-20 2004-01-29 Robert Bosch Gmbh Piezoelektrisches Aktormodul und Verfahren zur Montage eines piezoelektrischen Aktormoduls
DE102006009070A1 (de) * 2006-02-28 2007-08-30 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102006051583A1 (de) * 2006-11-02 2008-05-08 Robert Bosch Gmbh Kraftstoffinjektor mit Speichervolumensegment
DE102007002278A1 (de) * 2007-01-16 2008-07-17 Robert Bosch Gmbh Injektor zum Einspritzen von Kraftstoff
DE102007026891A1 (de) 2007-06-11 2008-12-18 Robert Bosch Gmbh Steuerventil, insbesondere für einen Kraftstoffinjektor einer Brennkraftmaschine
DE102007032219A1 (de) 2007-07-11 2009-01-15 Robert Bosch Gmbh Steuerventil, insbesondere für einen Kraftstoffinjektor einer Brennkraftmaschine
DE102007038139A1 (de) * 2007-08-13 2009-02-19 Robert Bosch Gmbh Elektrischer Stecker mit Kraftstoffrücklauf
DE102009000833A1 (de) 2009-02-13 2010-08-19 Robert Bosch Gmbh Kraftstoffinjektor mit Kopplermodul
DE102009001099A1 (de) 2009-02-24 2010-08-26 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102009001100A1 (de) 2009-02-24 2010-08-26 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102009001176A1 (de) 2009-02-26 2010-09-02 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102009027187A1 (de) 2009-06-25 2010-12-30 Robert Bosch Gmbh Kraftstoffinjektor
DE102009029412A1 (de) 2009-09-14 2011-03-17 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
DE102010003405A1 (de) 2010-03-29 2011-09-29 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
DE102010003418A1 (de) 2010-03-30 2011-10-06 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
DE102010029123A1 (de) * 2010-05-19 2011-11-24 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
JP5375762B2 (ja) * 2010-07-14 2013-12-25 株式会社デンソー 燃料噴射装置
DE102010031497A1 (de) 2010-07-19 2012-01-19 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
EP2444650B1 (fr) * 2010-10-20 2015-12-23 Delphi International Operations Luxembourg S.à r.l. Injecteur de carburant amélioré
DE102015226326A1 (de) 2015-12-21 2017-06-22 Robert Bosch Gmbh Hydraulische Kopplereinrichtung und Kraftstoffeinspritzventil mit einer solchen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022166A (en) * 1975-04-03 1977-05-10 Teledyne Industries, Inc. Piezoelectric fuel injector valve
US4784102A (en) * 1984-12-25 1988-11-15 Nippon Soken, Inc. Fuel injector and fuel injection system
EP0192241B1 (fr) * 1985-02-19 1988-09-21 Nippondenso Co., Ltd. Soupape de commande pour régler le passage de fluide
FR2586758B1 (fr) * 1985-09-04 1994-03-25 Nippon Soken Inc Injecteur de carburant et installation d'injection de carburant
JPH0656162B2 (ja) * 1987-03-03 1994-07-27 トヨタ自動車株式会社 ストロ−ク可変装置
US5129489A (en) * 1989-10-20 1992-07-14 Nippondenso Co., Ltd., 1-1 Hydraulically operated displacement transmission mechanism for shock absorber with variable damping force
JPH03163280A (ja) * 1989-11-20 1991-07-15 Nippondenso Co Ltd 積層型圧電体装置
DE19821768C2 (de) * 1998-05-14 2000-09-07 Siemens Ag Dosiervorrichtung und Dosierverfahren
DE19826339A1 (de) * 1998-06-12 1999-12-16 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE19838862A1 (de) * 1998-08-26 2000-03-09 Siemens Ag Dosiervorrichtung
DE10112147A1 (de) * 2001-03-14 2002-09-19 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
KR20060006969A (ko) 2006-01-20
DE502004004377D1 (de) 2007-08-30
CN1791744A (zh) 2006-06-21
DE10322672A1 (de) 2004-12-09
EP1636483A1 (fr) 2006-03-22
JP2006529012A (ja) 2006-12-28
US20060033062A1 (en) 2006-02-16
WO2004104403A1 (fr) 2004-12-02

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