EP2008774A2 - Dispositif destiné à retirer une buse d'injection - Google Patents

Dispositif destiné à retirer une buse d'injection Download PDF

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Publication number
EP2008774A2
EP2008774A2 EP08008554A EP08008554A EP2008774A2 EP 2008774 A2 EP2008774 A2 EP 2008774A2 EP 08008554 A EP08008554 A EP 08008554A EP 08008554 A EP08008554 A EP 08008554A EP 2008774 A2 EP2008774 A2 EP 2008774A2
Authority
EP
European Patent Office
Prior art keywords
injection nozzle
head part
coupling
tension
coupling plate
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.)
Granted
Application number
EP08008554A
Other languages
German (de)
English (en)
Other versions
EP2008774A3 (fr
EP2008774B1 (fr
Inventor
Thomas Sjösten
Stefan Baur
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.)
Klann Spezial Werkzeugbau GmbH
Original Assignee
Klann Spezial Werkzeugbau 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 Klann Spezial Werkzeugbau GmbH filed Critical Klann Spezial Werkzeugbau GmbH
Publication of EP2008774A2 publication Critical patent/EP2008774A2/fr
Publication of EP2008774A3 publication Critical patent/EP2008774A3/fr
Application granted granted Critical
Publication of EP2008774B1 publication Critical patent/EP2008774B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • 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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors

Definitions

  • injectors which are used in the cylinder head of the engine in a corresponding receiving bore. These injectors are used for injection of the fuel in the corresponding associated combustion chamber of the corresponding associated cylinder.
  • injection nozzles form a so-called nozzle, which is provided with an approximately cylindrical mounting portion. At its end directed towards the combustion chamber, this nozzle is provided with an injection opening, which is released continuously or clocked via a corresponding activation of the injection nozzle.
  • the control of this continuous or intermittent release of this injection opening is effected by an inserted in the head part of the injector, electronically controlled drive element, which is designed as a kind of valve control.
  • This valve control is inserted into a corresponding internal thread of the head part of the injection nozzle and has a generally radially outwardly projecting Connection plug on.
  • This head part is further provided for the fuel supply with a pressure port which can be coupled with a fuel-supplying fuel line, usually screwed.
  • a fuel-supplying fuel line usually screwed.
  • an internal thread is provided in the region of this head part, in which a corresponding connection piece can be screwed.
  • the fuel line can be tightly screwed into a corresponding union nut on this connection piece.
  • clamping claws are usually used, which are fork-shaped. These clamping claws engage with their fork legs in the cut-outs of the injection nozzle, so that the injection nozzle is held in a fixed manner in the receiving bore of the cylinder head via the stop faces of the cut-outs directed towards the cylinder head.
  • the clamping claw is held tightly by means of a mounting screw on the cylinder head.
  • the clamping claw in the region of the opposite end region of the two fork legs usually a support lever, which is provided with a recess. With this depression of the support lever, the clamping claw is supported on a, for example, arranged in the valve cover of the cylinder head, vertically upwards from this partially protruding pressing ball.
  • This pressing ball forms together with the support lever of the clamping claw a kind of pivot bearing, so that the clamping claw when tightening the mounting screw with their fork legs the injection nozzle in the receiving bore of the cylinder head secures.
  • the injection nozzle is fixed in its angular position relative to the cylinder head by the fork legs of the clamping claw.
  • a device which, inter alia, has a support cylinder, a thrust bearing and a tension spindle with a pull nut.
  • the connection plug with the valve control for controlling the injection process must first be removed from the head part.
  • the internal thread is accessible in the head part, so that the tension spindle can be screwed into this internal thread.
  • the support cylinder For axial support in the surrounding region of the injection nozzle is used in this known device, the support cylinder, which is pushed over the injection nozzle or the head part of the injector and placed with its cylinder head side annular face in the vicinity of the injector on the cylinder head. By tightening the tension nut, the tension spindle is now withdrawn in the support cylinder, so that here, due to the threaded connection between the tension spindle and the injection nozzle of the extraction process is initiated.
  • a device in which a fork-shaped coupling part is provided.
  • This fork-shaped coupling part has two transverse to the pulling direction fork legs, which can be brought into engagement with the above-mentioned cut-outs of the injection nozzle.
  • it is necessary to remove in advance the above-mentioned clamping claw. Subsequently, after the attachment of the coupling part, this can be coupled for example with a slide hammer or its slide rod, so that exhaust forces on the coupling part and the fork legs on the injector exhaust forces can be applied.
  • the object of the invention is to provide a device for extracting an injection nozzle, with which an injection nozzle can be pulled out in a "permitted” manner, without any damage being caused to this injection nozzle, in particular also the control valve or the head part.
  • a coupling element for coupling the traction device with the injection nozzle, a coupling element is provided which has a mounting block which is provided with an aligned on the thread of the pressure port through-hole through which a with a threaded member provided with a counter thread can be plugged in and screwed to the thread of the pressure connection and that the mounting block is fixedly connected to a coupling plate via a pull web extending parallel to the head part, via which the pulling device with the coupling element for applying coaxial forces acting on the injection nozzle in Train connection can be brought.
  • a device for extracting an injection nozzle used in a cylinder head is provided, which with the head part of Injection nozzle is coupled in the simplest way, without the one hand, the clamping claw would have to be removed from the cutouts of the injection nozzle and on the other hand, the control valve in the head part of the injector can remain. Since all currently known injection nozzles have a pressure connection for the fuel line, essentially all known injection nozzles can also be pulled out with the device according to the invention. Wherein the coupling element is adapted to the shape of the head part with its pressure connection and possibly also differently shaped coupling elements can be provided for differently configured head parts or injection nozzles.
  • the coupling plate is arranged in the axial extension to the head part of the injection nozzle and can be brought via suitable coupling elements, in particular via an internal thread or a threaded pin with the pulling device in train connection.
  • a traction device whether in the form of a tension spindle or a hydraulic cylinder or a sliding hammer in coaxial extension to the injection nozzle with the coupling plate can be coupled.
  • the tensile forces are safely introduced coaxially into the injection nozzle, so that no transverse forces can occur and thus possibly damage, for example, by bending moments arising, are reliably prevented.
  • the Switzerlandsteg has a distance from the head part of the injection nozzle, which is dimensioned such that a laterally protruding plug connection of a patch on the head part valve control finds room.
  • the coupling plate is aligned transversely to the pulling direction and that in the region of the through hole of the mounting block two laterally, parallel to the coupling plate extending stabilizing webs are provided.
  • the two lateral stabilizing webs are provided with mounting threads and that in the coupling plate in alignment with the mounting threads of the stabilizing webs through holes are provided and that the stabilizing webs and the coupling plate are clamped together by lag screws.
  • the threaded element may be formed as a mounting screw, which is screwed into a thread formed as an internal thread of the pressure port.
  • a pressure connection is usually provided with a connecting piece for the fuel line. After removal of this connecting piece, the thread formed as an internal thread of the pressure port is accessible, so that a Such mounting screw in a simple manner can be screwed through the mounting block into this internal thread of the pressure port.
  • this configuration achieves a tensioning of the mounting block on the pressure connection by tightening the mounting screw, so that the introduction of force into the injection nozzle or its head part via the pressure connection is ensured reliably.
  • the threaded element is designed as a threaded bushing with an internal thread, which is screwed to a connecting piece of the pressure port.
  • This variant is advantageous if only small tensile forces are to be applied to pull out the injection nozzle. Such low tensile forces can then be absorbed in a simple and safe way from the connecting piece, so that it does not have to be removed in advance for removing the injector.
  • d. H. be it when using a mounting screw or a threaded bushing also differently sized mounting screws or threaded bushings can be provided so that the device according to the invention can also be adapted to different designs of injectors with different sized pressure ports.
  • a sliding hammer is provided as a pulling device, which is coupled with a sliding rod with a coaxial with the injection nozzle aligned internal thread of the coupling plate. Since when removing an injector often only a small way to release the injector in the receiving bore of the cylinder head is required, the use of a sliding hammer makes sense insofar as that the injection nozzle is pulled out of the receiving bore by a few millimeters through only a few impact pulses and then in this Receiving bore is already solved. In order to can be manually pulled out of the receiving bore of the cylinder head after this dissolution process, the injection nozzle in a simple manner.
  • the pulling device instead of such a slide hammer has a pulling spindle, which is fixedly brought into connection with the coupling plate.
  • a support plate is further provided with a through hole according to claim 9, which extends through the traction spindle from the outside to the head part of the injection nozzle.
  • this support plate is axially supported by support rods on the cylinder head, so that for applying the required tensile forces a screwed onto the pulling spindle nut can be supported axially in the vicinity of the through hole of the support plate. Consequently, the pulling spindle is pulled away from the cylinder head when the tension nut is actuated, the complete coupling element being pulled out together with the injection nozzle through its coupling with the coupling plate.
  • a pulling device which is fixedly connected to the coupling plate in connection with a pulling spindle.
  • a support cylinder with a through hole which projects through the traction spindle from the outside to the head of the injector and which is axially supported on the cylinder head.
  • a threaded nut screwed onto the tensioning spindle is also provided in this embodiment variant, which is axially supported in the surrounding area of the through-bore of the support cylinder.
  • an injector can be pulled out of a cylinder head in a safe and simple manner by the device according to the invention. Due to the specially designed coupling element with its mounting block this is always in the simplest way fixedly coupled to the pressure port of an injection nozzle, so that the device according to the invention can also be used, for example, if the clamping claw can not be removed or the control valve in the head part of the injector for further use This injector must not be removed.
  • Fig. 1 shows an exploded perspective view of a coupling element 1 according to the invention together with two lag screws 2 and an adapter threaded bushing. 3
  • the coupling element 1 has in its lower end region on a mounting block 4, which is fixedly arranged in the present embodiment at the lower end of a pull bar 5. Starting from this pull bar 5, the mounting block 4 extends approximately in the transverse direction to the pull bar 5. As out Fig. 1 can be seen further, the mounting block 4 has a through hole 6, which in the present embodiment, approximately at an inclination angle ⁇ of 45 ° to a "virtual", vertically extending longitudinal central axis 7 inclined arranged in the mounting block 4 is arranged. This angle of inclination a can also assume a different value and depends on the course of a thread for the coupling of a fuel line to the pressure port of an injection nozzle.
  • the through hole 6 is stepped in the present embodiment and has a smaller diameter guide portion 8, which ends in the lower inner end portion 9 of the mounting block 4. Towing the web 5, the through hole 6 has a radially enlarged receiving portion 10, so that between this receiving portion 10 and the guide portion 8, a circumferential annular shoulder 11 is formed. Furthermore, it is off Fig. 1 recognizable that the mounting block 4 is provided on both sides of the through hole 6 with stabilizing webs 12 which are arranged transversely to the pull bar 5 extending integrally on the mounting block 4. These two stabilizing webs 12 are each provided with a mounting thread 13, in each of which one of the lag screws 2 can be screwed.
  • a coupling plate 14 is provided, which is integrally formed approximately parallel to the two stabilizing webs 12 and thus at right angles to the draw bar 5 in its upper end region.
  • This coupling plate 14 has in its lateral edge regions as well as in the region of the pull bar 5 each have a through hole 15 through which the lag screws 2 are each pushed through and engageable with the mounting threads 13 in engagement.
  • the through holes 15 as well as the mounting thread 13 at a distance to the vertically extending draw web 5.
  • an internal thread 16 is provided in the coupling plate 14, which optionally serves to receive the adapter threaded bushing 3 or directly for receiving or fixed attachment of a pulling device, as will be explained in more detail later.
  • an internal thread and a threaded pin or any other suitable coupling device may be provided.
  • the adapter threaded bushing 3 an inner through thread 18, which can serve for example for coupling with a slide bar of a slide hammer.
  • Fig. 2 shows a rear view II of the coupling element 1 in a perspective view. Also from Fig. 2 it can be seen that the stabilizing webs 12, of which in Fig. 2 only one can be seen, parallel to the coupling plate 14 run.
  • the coupling element 1 forms essentially a kind of C-shape, wherein between the mounting block 4 with its two stabilizing webs 12 and the coupling plate 14, a receiving space 19 is formed. This receiving space 19 is used in operation for receiving at least a portion of the head part of an injection nozzle and the inclusion of an adapted to the head part control valve with its connector.
  • the coupling element 1 can also be designed in several parts.
  • the pull bar 5 may be formed as a single part and bolted to the mounting block 4 and the clutch plate 14.
  • Fig. 3 shows a vertical section III-III of the coupling element 1 from Fig. 1 , It can be seen that the internal thread 16 of the coupling plate 14 is not formed in the present embodiment as a through-threaded. In its lower end region, this internal thread 16 forms a radial extension 20, to which in turn is formed a tapered in diameter Through hole 21 connects. This internal thread 16 serves, as already mentioned above, for the fixed mounting of a pulling device.
  • the through hole 6 with its guide portion 8 and the receiving portion 10 for receiving a threaded member 22, which is formed in the present embodiment as a mounting screw 23.
  • This mounting screw rests with its screw head 24 in use on the circumferential annular shoulder 11 and has a guide shaft 25, with which the mounting screw 23 is received with little play in the guide section 8 of the through hole 6.
  • the mounting screw 23 has an external thread 26 with which the mounting screw 23 can be screwed into an internal thread of the head part or a pressure connection of the head part of the injection nozzle, as will be explained in more detail later.
  • the screw head 24 is accordingly accommodated in the receiving portion 10 of the through hole 6 accordingly.
  • Fig. 4 shows a vertical section IV-IV of the coupling element 1 from Fig. 2 ,
  • the lag screw 2 projects through the through-hole 15 of the coupling plate 14 and with its threaded portion 27 (see also FIG Fig. 1 ) is screwed into the mounting thread 13 of the stabilizing web 12 of the mounting block 4.
  • stabilization of the coupling element 1 is achieved in the direction of the arrow 28 when there are great tensile forces acting on the coupling plate 14, so that bending of the coupling element 1 is reliably prevented.
  • Fig. 5 shows a vertical section III-III through the coupling element 1, wherein the coupling element 1 is in use and with a slide bar 30 of an in Fig. 6 is coupled in a reduced scale sliding hammer 31 is coupled.
  • the mounting screw 23 is seated in the through hole 6 and rests with its screw head 24 on the annular shoulder 11. Furthermore, it is off Fig. 5 schematically an injection nozzle 35 with its head part 36 recognizable. In the head part 36, a valve control 37 is used, which is provided in its upper end portion with a connector 38. How out Fig. 5 it can be seen, this connector 38 is received in the receiving space 19 formed by the mounting block 4 and the clutch plate 14.
  • Fig. 5 recognizable that the mounting screw 23 is screwed into an internal thread 39 of a pressure port 40 of the head part 36 of the injection nozzle 35.
  • a tight fit of the coupling element 1 is achieved at the injection nozzle 35.
  • the shape of the coupling element 1 is adapted to the injection nozzle 35 shown schematically such that the slide bar 30th is aligned in the correctly attached state of the coupling element 1 on the injection nozzle 35 coaxial with the injection nozzle 35.
  • corresponding tensile forces in the direction of arrow 28 in an absolutely parallel direction and coaxial with the longitudinal extent of the injection nozzle 35 can be introduced into this.
  • tilting or other damage to the injection nozzle during the extraction process is reliably prevented during the extraction process.
  • the coupling element 1 can also be configured with its mounting block 4 in such a way that the mounting block 4 can be coupled with a connecting piece which is normally seated in the internal thread 39 of the pressure port 40 for the fuel supply. Since such a connecting piece has an outwardly projecting external thread, in such a case, instead of in Fig. 5 shown mounting screw 23 to use a correspondingly provided with a head part threaded bushing which can be screwed onto this external thread.
  • the basic configuration of the injection nozzle 35 with a connecting piece inserted into the pressure port 40 is well known from the prior art, so that here only by way of example DE 20 2004 009 755.9 U1 is pointed out. There, in principle, an injection nozzle or a nozzle is described schematically.
  • the slide hammer 31 has a striking weight 45 which is manually movable along the slide bar 30 in the direction of the double arrow 46.
  • a stop sleeve 47 is screwed, which in turn is provided in its upper end with a transverse hand lever 48.
  • the slide bar 30 is screwed into the internal thread 18 of the adapter threaded bushing 3 in a simple manner, as in Fig. 5 is shown.
  • the stop sleeve 47 serves as a stop for the impact weight 45, so that when striking the in the direction of Arrows 28 moving impact weight 45 against the stop sleeve 47 a shock pulse in the direction of arrow 28 is effected.
  • This impact pulse is introduced via the slide bar 30 in the clutch plate 14 and thus in the coupling element 1 and transmitted via the mounting block 4 and the mounting screws 23 on the head portion 36 of the injection nozzle 35.
  • By thus applied impact pulses thus the injection nozzle from a in Fig. 5 not shown detail of a cylinder head pulled out.
  • any other suitable traction device for extracting the injection nozzle 35 may be provided.
  • a traction device 50 is shown in vertical section, which has a support plate 51, a tension spindle 52 with a pull nut 53 and a plurality of support rods 54.
  • the support plate 51 can be supported on the upper side axially on a cylinder head.
  • the support rods 54 for example, by means of corresponding retaining nuts 55 fixedly bolted to the support plate 51.
  • the traction spindle 52 extends through a through-hole 56 of the support plate 51, wherein the through-bore 56 can be provided, for example, in its upper end region with a radially enlarged receiving portion 57.
  • This receiving portion 57 is used in the present embodiment for receiving a Axialdrucklagers 58, on which in turn the pull nut 53 is axially supported in operation, as is made Fig. 7 is apparent.
  • the tension spindle 52 is screwed fixedly with a threaded portion 59 arranged in the lower end region into the internal thread 16 of the coupling plate 14 of the coupling element 1.
  • a corresponding Drive hexagon 60 may be provided in the upper end region of the tension spindle 52 so that the tension spindle 52 can be driven by means of a corresponding key tool.
  • the injection nozzle 35 can be pulled out of a receiving bore of a cylinder head in a safe and simple manner, without the control valve 37 in particular having to be removed from the head part. Also an intervention in the in the Fig. 5 and 7 Milled portions 61 and 62 of the injection nozzle 35 shown is not necessary, so that a clamping claw not shown in the drawing with their fork legs, as is known from the prior art, can remain in these cutouts 61 and 62.
  • the specific embodiment of the coupling element 1 described in the exemplary embodiment is merely exemplary and is intended to represent only one of possible variants, with which it is possible to couple a traction device with the pressure port of an injection nozzle.
  • variants are conceivable in which the lag screws are not provided, or in which the coupling of the pulling device takes place in a different manner.
  • the coupling element replaceable component for example, be a hydraulic cylinder.
  • a pneumatic impact tool can be provided as a pulling device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Catching Or Destruction (AREA)
  • Paper (AREA)
EP08008554A 2007-06-28 2008-05-07 Dispositif destiné à retirer une buse d'injection Not-in-force EP2008774B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007009073U DE202007009073U1 (de) 2007-06-28 2007-06-28 Vorrichtung zum Ausziehen einer Einspritzdüse

Publications (3)

Publication Number Publication Date
EP2008774A2 true EP2008774A2 (fr) 2008-12-31
EP2008774A3 EP2008774A3 (fr) 2009-09-30
EP2008774B1 EP2008774B1 (fr) 2012-03-21

Family

ID=38460867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08008554A Not-in-force EP2008774B1 (fr) 2007-06-28 2008-05-07 Dispositif destiné à retirer une buse d'injection

Country Status (3)

Country Link
EP (1) EP2008774B1 (fr)
AT (1) ATE550149T1 (fr)
DE (1) DE202007009073U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1039067C2 (nl) * 2011-09-23 2013-03-26 Jacob Matheus Maria Broek Verstuivertrekker.
KR102013201B1 (ko) * 2018-06-28 2019-08-22 황도용 인젝터 탈거용 스패너 지그

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010009355U1 (de) 2010-06-22 2010-10-07 Werkzeug Pichler Gesellschaft M.B.H. & Co. Kg Demontagevorrichtung zum Demontieren eines Brennstoffinjektors
DE202010010090U1 (de) * 2010-07-10 2010-10-14 Klann-Spezial-Werkzeugbau-Gmbh Vorrichtung zum Ausziehen einer Einspritzdüse
DE102011007050B4 (de) * 2011-04-08 2013-10-10 Michael Müller Werkzeug zum Lösen einer Bauteilkomponente
NL1038816C2 (nl) * 2011-05-17 2012-11-20 Jacob Matheus Maria Broek Verstuivertrekker.
DE202016103790U1 (de) * 2016-07-14 2016-10-27 Govoni S.R.L. Abziehvorrichtung für Einspritzdüsen von Dieselmotoren
CN114619396A (zh) * 2020-12-11 2022-06-14 中国航发商用航空发动机有限责任公司 装拆工具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002538A1 (fr) * 1980-03-03 1981-09-17 D Baumann Dispositif d'extraction de soupape d'injection de carburant
US5784783A (en) * 1996-04-18 1998-07-28 Carpenter; Donald L. Method of removing an injector sleeve
DE202004009756U1 (de) * 2004-06-21 2004-09-02 Klann-Spezial-Werkzeugbau-Gmbh Vorrichtung mit Stützgabel zum Ausziehen eines Düsenstockes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1039067C2 (nl) * 2011-09-23 2013-03-26 Jacob Matheus Maria Broek Verstuivertrekker.
KR102013201B1 (ko) * 2018-06-28 2019-08-22 황도용 인젝터 탈거용 스패너 지그

Also Published As

Publication number Publication date
DE202007009073U1 (de) 2007-08-30
ATE550149T1 (de) 2012-04-15
EP2008774A3 (fr) 2009-09-30
EP2008774B1 (fr) 2012-03-21

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