EP1255040A1 - Dispositif de démarrage pour moteurs à combustion interne - Google Patents
Dispositif de démarrage pour moteurs à combustion interne Download PDFInfo
- Publication number
- EP1255040A1 EP1255040A1 EP02290993A EP02290993A EP1255040A1 EP 1255040 A1 EP1255040 A1 EP 1255040A1 EP 02290993 A EP02290993 A EP 02290993A EP 02290993 A EP02290993 A EP 02290993A EP 1255040 A1 EP1255040 A1 EP 1255040A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- accumulator
- fuel
- stop
- accumulator means
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 7
- 239000000446 fuel Substances 0.000 claims abstract description 39
- 238000004146 energy storage Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
Definitions
- the invention relates to a starting device for engines with a common fuel injection rail.
- Patent application US5839413 discloses a system which reduces the starting time of an engine "common rail".
- the principle of this system consists in making communicate the common rail not only to a pump high pressure but also to a low pressure circuit thanks to two calibrated non-return valves (a first bass pressure and a second high pressure).
- the low circuit pressure has a low pressure accumulator which allows maintain a stable pressure lower than that delivered when the high pressure pump is at full load. So at starting while the high pressure pump is on running, the low pressure circuit is already compressing the fuel in the common rail. Then when the high pressure pump exerts a pressure higher than that prevailing in the circuit low pressure, the low pressure valve, which let through until then the low pressure flow will close in favor of second valve.
- the common rail is finally set up pressure only by the high pressure pump.
- the purpose of the present invention is to overcome all or some of the drawbacks encountered in the prior art. So, the invention proposes a device for starting up a constitution simple for internal combustion engine, which can be integrated by causing few modifications to the engine and which allows to shorten the start-up time so as to allow the adaptation of these engines to "stop and start”.
- the invention provides a starting device for internal combustion engine comprising means pressurized fuel accumulator, means pressurized fuel supply and at least one injection means supplied with fuel by the means accumulator characterized in that it additionally comprises a energy storage device powered by pressure prevailing in said accumulator means and in that the energy storage device is able to supply at startup said energy stored so as to provide a second fuel compression means allowing said engine to start faster
- This invention thus avoids modifications heavy structural, not having to provide too much energy additional to that currently required and to provide the injectors with sufficient pressure to initiate the engine until the high pressure pump takes over relay.
- the fuel supply means advantageously have a high pump pressure supplying fuel to said accumulator means and a non-return valve allowing a direction of circulation of the fuel only from said pump to said means accumulator.
- This system allows, upon release of said energy, that the pressure is confined in the means accumulator and thus provides the minimum pressure required injection means.
- said energy storage means is, according to the invention, located at one of the two ends of said means accumulator and includes a piston, a spring located between said piston and said end, at least a first stop static and at least one second movable stop allowing to limit the stroke of said piston.
- said first stop static is advantageously able to accommodate said piston in order to limit the spring stress.
- said second stops include control means allowing, during the engine operation, to prevent movement of the piston from said end towards the inside of said means accumulator and, during startup, to authorize this same movement.
- This simple pair of stops allows you to release or to keep the piston-spring assembly under stress.
- the means of control are electromagnetic for compactness and optimal tool precision.
- the storage means of energy advantageously, comprises a piston, a means elastic located between said piston and said end and a locking system to selectively release the piston.
- the locking system comprises at least three rods provided at each of their ends with rollers and pivotally mounted on a disc, a shaft connecting the piston and the disc, elastic means connecting the links together and control means allowing according to the commands transmitted to the steering means to selectively block the links between said control means and the end of the medium accumulator.
- Steering means comprise a stop substantially in truncated cone shape, a sensitive T-shaped piece of which the base extends said stop and the body of which is piloted in translation by electromagnetic means allowing the said first rollers to follow the surface of the stop for selectively block or unblock the second rollers of the end of the accumulator means.
- the central element of the starting device shown generally in 1 is the fuel accumulator means 2 or common rail. Significantly cylindrical in shape, it is connected to fuel supply means 3, to a means energy store 4 and injection means 5.
- the injection means 5 in the example illustrated consist of pipes 9 and injectors 10.
- it is a common rail motor managing the injection of four cylinders.
- Each of the injectors distributes the fuel under pressure in each combustion chamber (not shown).
- the device 1 includes an energy storage means 4 cooperating with the fuel accumulator means 2.
- Said storage means energy consists mainly of a piston 11, a spring 12 and two sets of stops 13, 14.
- the piston 11 is movable inside the means pressurized fuel accumulator 2. Displacement piston 11 is sealed by means of a connecting means 15, like an annular seal or segment, contained at its periphery.
- the spring 12 previously cited is connected in the example illustrated between the end of the accumulator means 2b, opposite the end 2a to which the duct 7 and the piston 11 are connected.
- the energy storage means 4 has two stop series 13, 14.
- the first series formed by a single stop 13, is static and annular in shape. She is secured inside the accumulator means 2 between its end 2b and the piston 11.
- the second series composed of two stops 14, is movable by so as to be able to cooperate with the piston 11 to make this last 11 stationary in ramp 2. This cooperation can be carried out for example using an attachment of the type tenon 14 - mortise 11.
- this second series of stops 14 sometimes authorizes sometimes prevents the passage of piston 11 to its proximity.
- the control command for these two movable stops is of the electromagnetic type.
- the piston 11 of the storage means energy 4 is in the rest position (corresponding to the spring -12- in equilibrium) and the second series of stops 14 authorizes the passage of the piston 11 near it.
- the piston is therefore in the position furthest from the end 2b.
- This first starting is therefore carried out as for a conventional engine.
- the high pressure pump 6 will supply fuel under pressure the accumulator means 2 through the conduit 7.
- the pressure, arriving at the injectors 10 via the lines 9, is sufficient to activate them, the engine is started.
- the energy storage means 4 will be activated. Indeed thanks to the high pressure prevailing in the accumulator means 2, the piston 11 will be moved from the interior of said accumulator towards its end 2b thus compressing the spring 12.
- the calibration of the spring 12 is such with respect to the pressure in the accumulator means 2 that the piston 11 will very quickly be pushed into region 2b where the single stop 13 is located.
- the two movable stops 14 go then be activated so as to block the movement of the piston 11.
- the piston 11 will remain substantially in its position so as to store energy retaining the spring 12 under stress.
- the two movable stops 14 in the example illustrated will authorize the movement again of the piston 11. This freedom of the piston 11 will make it possible to release spring 12 from the stress at which it was submitted. This release will propel the piston 11 towards inside the accumulator means 2 causing a strong fuel overpressure in said accumulator means.
- valve 8 because the pressure at the outlet of the pump high pressure 6 (not yet fully loaded) is less than that of the accumulator means 2, will then close and therefore temporarily condemn the conduit 7. Thanks to this valve 8, the pressure generated by the activation of the storage means of energy 4 (sufficient to start the engine) is confined in the accumulator means 2. The first injection can therefore take place.
- the engine will be launched before the pump 6 has reached full load.
- the pump 6 being partially supplied with energy by the shaft engine (not shown), the start of the latter will have an accelerating effect on the pressure rise of the pump 6. The shortening of the start will therefore be increased tenfold.
- the pump 11 After a certain time, the pump 11 will provide a pressure higher than that prevailing in the medium accumulator 2.
- the non-return valve 8 will then open under the effect of the pressure coming out of the pump 6 and therefore will do communicate, through line 7, the high pump pressure 6 with the fuel accumulator means 2. The normal fuel delivery and injection cycle can then take place.
- the piston 11 of the means storage device 4 will be actuated so as to compress its spring 12 associated so as to be able to provide energy sufficient to shorten the next start.
- the cycle cited and repeated several times allows, thanks to this starting device, to a common rail motor of operate in "stop and start".
- the overpressure provided by the energy storage means 4 is tared so that two injections can be given before that the high pressure pump 6 take over.
- the energy storage means 104 mainly comprises a piston assembly 101, an assembly rods 102 and a steering assembly 103.
- the piston assembly 101 includes a piston 111, a spring 112, a piston end collar 113 and a shaft 114.
- the piston 111 slides tightly along the internal diameter of the accumulator means 2 thanks for example to an O-ring 115 along its periphery.
- Spring 112 is interposed between one of the ends 2a, 2b of the means accumulator and said piston 111.
- the shaft 114 fixed substantially along the axis of translation of the piston 111, passes successively in the interior space formed by the turns of spring 112 and through a hole drilled on said end 2a, 2b where said piston assembly 101 is installed.
- This shaft 114 is partially covered along its length by the collar 113 which limits the output length of the shaft 114 relative to the common rail 2.
- the rod assembly 102 preferably comprises at minus three links, two of which 105a, 105b are visible on the Figure 2, a disc 107, at least three springs, only one of which 108 is visible in FIG. 2, and rollers 109, 110.
- the rods 105 are pivotally mounted relative to the disc 107.
- the latter must have as many grooves as of rods which, preferably distributed equidistantly each other, each partially framing one of the rods.
- the disc 107 is fixed substantially perpendicular to the shaft 114 which implies for the rods 105 a positioning substantially parallel to the shaft 114.
- each link 105 has at each of its two ends a roller 109, 110.
- the first rollers 109a and 109b are intended to come correspond respectively with a notch 121a, 121b hollowed out on the surface of the end of the accumulator means 2.
- the second rollers 110a and 110b are in permanent contact with the control assembly 103.
- n links there will be n disc grooves 107, 2n rollers, n notches and n springs.
- all of piloting 103 mainly consists of a stop 116, a T-element 117 and an electromagnetic element 118.
- the stop 116 is in the form of a truncated cone whose surface inclined serves as a ramp for said second rollers 110a and 110b.
- the element substantially in T 117 comprises a base of discoid shape 119 of diameter substantially identical to larger diameter of said cone so as to extend it and a rod 120 mechanically connecting the stop to the element electromagnetic 118.
- the latter is capable of translating said rod substantially along the axis of the shaft 114.
- the electromagnetic element 118 can control the approximation or spacing of the stop 116 relative to the disc 107.
- the purpose of the means energy store 104 is to release the piston at start-up 111 so as to provide a temporary means of compression fuel in the common rail until this the latter is supplied by the high pressure pump 6.
- the second variant 104 also uses the stabilized pressure prevailing in the common rail for prestressing the storage means 104.
- the electromagnetic means 118 retracts the rod 120.
- This movement forces the second rollers 110 to descend along the cone of the stop 116 which induced, under the combined forces of the contraction of springs between the links 108 and the rebound of the spring 112 contained in the common rail 2, the unlocking of the rollers 109 of their respective notches 121 and a translation of the piston 111 towards the interior of the common rail 2.
- This translation like the first variant 4, allows you to start faster the internal combustion engine. The movement described above is repeated to allow the adaptation of said engine to "stop and start".
- the invention cannot be limited to the examples set out in this patent. So, the means of piloting of the electromagnetic type can be of another type.
- the tenon-mortise connection cited as an example between the movable stops 14 and the piston 11 may be different.
- the overpressure in said accumulator means can be carried out using a pre-stressed elastic mechanical device passive trigger. Piloting this system which can for example be carried out using a pressure (10 - 20 bar) supplied by the HP pump. This pressure commands then the deindexing of the pre-constrained organ which, by relaxing, provides said overpressure.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Valve Device For Special Equipments (AREA)
- Control Of Eletrric Generators (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
- la figure 1 est une vue schématique du dispositif de démarrage selon une première variante ;
- la figure 2 est une vue schématique du moyen stockeur d'énergie selon une deuxième variante.
Claims (9)
- Dispositif de démarrage (1) pour moteur à combustion interne comprenant des moyens d'alimentation de carburant sous pression (3), un moyen accumulateur de carburant sous pression (2), au moins un moyen d'injection (5) fourni en carburant par le moyen accumulateur (2), un dispositif stockeur d'énergie (4) s'alimentant grâce à la pression règnant dans ledit moyen accumulateur caractérisé en ce que ledit moyen accumulateur est situé à une (2b) des deux extrémités dudit moyen accumulateur de carburant de façon à offrir un deuxième moyen de compression du carburant permettant audit moteur de démarrer plus rapidement.
- Dispositif selon la revendication 1, caractérisé en ce que les moyens d'alimentation (3) comportent une pompe haute pression (6) alimentant en carburant ledit moyen accumulateur et un clapet antiretour (8) autorisant un sens de circulation du carburant uniquement de ladite pompe vers ledit moyen accumulateur.
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que le moyen stockeur d'énergie (4) comporte un piston (11), un ressort (12) situé entre ledit piston et ladite extrémité, au moins une première butée statique (13) et au moins une deuxième butée mobile (14) permettant de limiter la course dudit piston.
- Dispositif selon la revendication 3, caractérisé en ce que ladite première butée statique est apte à accueillir ledit piston afin de limiter la contrainte du ressort (12).
- Dispositif selon la revendication 3 ou 4, caractérisé en ce que lesdites deuxièmes butées mobiles (14) comportent des moyens de pilotage permettant, pendant le fonctionnement du moteur, d'empêcher le mouvement du piston (11) de ladite extrémité vers l'intérieur dudit moyen accumulateur et, pendant le démarrage, d'autoriser ce même mouvement.
- Dispositif selon la revendication 5, caractérisé en ce que les moyens de pilotage sont de type électromagnétique.
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que le moyen stockeur d'énergie (104) comporte un piston (111), un moyen élastique (112) situé entre ledit piston et ladite extrémité et un système de verrouillage (102, 103) permettant de sélectivement relâcher le piston (111).
- Dispositif selon la revendication 7, caractérisé en ce que le système de verrouillage (102, 103) comporte au moins trois biellettes (105) munies à chacune de leurs extrémités de galets (109, 110) et montées pivotantes sur un disque (107), un arbre (114) reliant le piston (111) et le disque (107), des moyens élastiques (108) liant entre elles les biellettes (105) et des moyens de pilotage (103) permettant suivant les commandes transmises aux moyens de pilotage (103) de sélectivement bloquer les biellettes (105) entre lesdits moyens de pilotage et l'extrémité du moyen accumulateur (2).
- Dispositif selon la revendication 8, caractérisé en ce que les moyens de pilotage (103) comportent une butée (116) sensiblement en forme de cône tronqué, une pièce (117) sensible en forme de T dont la base (119) prolonge ladite butée (116) et dont le corps (120) est piloté en translation par des moyens électromagnétiques (118) permettant aux dits premiers galets (110) de suivre la surface de la butée (116) pour sélectivement bloquer ou débloquer les deuxièmes galets (109) de l'extrémité du moyen accumulateur (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0105993 | 2001-05-04 | ||
| FR0105993A FR2824363B1 (fr) | 2001-05-04 | 2001-05-04 | Dispositif de demarrage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1255040A1 true EP1255040A1 (fr) | 2002-11-06 |
| EP1255040B1 EP1255040B1 (fr) | 2006-02-08 |
Family
ID=8862991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02290993A Expired - Lifetime EP1255040B1 (fr) | 2001-05-04 | 2002-04-19 | Dispositif de démarrage pour moteurs à combustion interne |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1255040B1 (fr) |
| AT (1) | ATE317499T1 (fr) |
| DE (1) | DE60209097T2 (fr) |
| FR (1) | FR2824363B1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2878580A1 (fr) * | 2004-11-29 | 2006-06-02 | Renault Sas | Rampe commune d'alimentation en carburant sous pression a volume variable |
| EP2677157A1 (fr) * | 2012-06-21 | 2013-12-25 | Robert Bosch Gmbh | Rail commun à volume variable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112910A (en) * | 1976-04-23 | 1978-09-12 | Prelube Corporation | Pre-lube device |
| US5839413A (en) | 1997-04-28 | 1998-11-24 | The Rexroth Corporation | Quick start HEUI system |
| US6092500A (en) * | 1997-03-07 | 2000-07-25 | Robert Bosch Gmbh | Fuel delivery device |
| DE19949514A1 (de) * | 1999-10-14 | 2001-04-19 | Bosch Gmbh Robert | Vorrichtung zum schnellen Druckaufbau in einer durch eine Förderpumpe mit einem Druckmedium versorgten Einrichtung eines Kraftfahrzeugs |
| US6234128B1 (en) * | 2000-03-13 | 2001-05-22 | General Motors Corporation | Fuel accumulator with pressure on demand |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0147026A3 (fr) * | 1983-12-27 | 1985-08-14 | Osamu Matsumura | Dispositif d'injection de combustible |
| DE4215721A1 (de) * | 1992-05-13 | 1993-11-18 | Bosch Gmbh Robert | Kaltstarteinrichtung für Kraftstoffeinspritzpumpen |
| DE4313852B4 (de) * | 1993-04-28 | 2004-11-25 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
| JPH10274130A (ja) * | 1997-03-28 | 1998-10-13 | Zexel Corp | 蓄圧式燃料噴射装置 |
-
2001
- 2001-05-04 FR FR0105993A patent/FR2824363B1/fr not_active Expired - Fee Related
-
2002
- 2002-04-19 AT AT02290993T patent/ATE317499T1/de not_active IP Right Cessation
- 2002-04-19 DE DE60209097T patent/DE60209097T2/de not_active Expired - Lifetime
- 2002-04-19 EP EP02290993A patent/EP1255040B1/fr not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112910A (en) * | 1976-04-23 | 1978-09-12 | Prelube Corporation | Pre-lube device |
| US6092500A (en) * | 1997-03-07 | 2000-07-25 | Robert Bosch Gmbh | Fuel delivery device |
| US5839413A (en) | 1997-04-28 | 1998-11-24 | The Rexroth Corporation | Quick start HEUI system |
| DE19949514A1 (de) * | 1999-10-14 | 2001-04-19 | Bosch Gmbh Robert | Vorrichtung zum schnellen Druckaufbau in einer durch eine Förderpumpe mit einem Druckmedium versorgten Einrichtung eines Kraftfahrzeugs |
| US6234128B1 (en) * | 2000-03-13 | 2001-05-22 | General Motors Corporation | Fuel accumulator with pressure on demand |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2878580A1 (fr) * | 2004-11-29 | 2006-06-02 | Renault Sas | Rampe commune d'alimentation en carburant sous pression a volume variable |
| EP2677157A1 (fr) * | 2012-06-21 | 2013-12-25 | Robert Bosch Gmbh | Rail commun à volume variable |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2824363B1 (fr) | 2004-01-02 |
| FR2824363A1 (fr) | 2002-11-08 |
| EP1255040B1 (fr) | 2006-02-08 |
| DE60209097D1 (de) | 2006-04-20 |
| ATE317499T1 (de) | 2006-02-15 |
| DE60209097T2 (de) | 2006-09-28 |
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