EP1702140B1 - Procede de conversion d'energie thermique en energie mecanique par un dispositif de detente basse tension - Google Patents

Procede de conversion d'energie thermique en energie mecanique par un dispositif de detente basse tension Download PDF

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Publication number
EP1702140B1
EP1702140B1 EP04816348A EP04816348A EP1702140B1 EP 1702140 B1 EP1702140 B1 EP 1702140B1 EP 04816348 A EP04816348 A EP 04816348A EP 04816348 A EP04816348 A EP 04816348A EP 1702140 B1 EP1702140 B1 EP 1702140B1
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EP
European Patent Office
Prior art keywords
working fluid
expansion device
roots blower
heat
evaporator
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EP04816348A
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German (de)
English (en)
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EP1702140A1 (fr
Inventor
Erwin Oser
Michael Rannow
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Ecoenergy Patent GmbH
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Ecoenergy Patent GmbH
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Priority claimed from DE2003160379 external-priority patent/DE10360379A1/de
Priority claimed from DE2003160380 external-priority patent/DE10360380A1/de
Priority claimed from DE2003160364 external-priority patent/DE10360364A1/de
Priority claimed from DE2003161203 external-priority patent/DE10361203A1/de
Priority claimed from DE2003161223 external-priority patent/DE10361223A1/de
Priority to DE202004021185U priority Critical patent/DE202004021185U1/de
Application filed by Ecoenergy Patent GmbH filed Critical Ecoenergy Patent GmbH
Publication of EP1702140A1 publication Critical patent/EP1702140A1/fr
Publication of EP1702140B1 publication Critical patent/EP1702140B1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
    • F01K25/065—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids with an absorption fluid remaining at least partly in the liquid state, e.g. water for ammonia
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids

Definitions

  • the invention relates to a process for the conversion of thermal energy arising in an evaporator into mechanical energy by the expansion of a vaporous working medium which is vaporized in the evaporator and expanded in an expansion device. Furthermore, the invention relates to a relaxation device for converting thermal energy into mechanical energy.
  • thermal power plants are known in which a working fluid in a boiler at a high
  • Isobaric pressure is heated to the boiling point, evaporated and then superheated in a superheater.
  • the steam is then adiabatically expanded in a turbine while performing work and liquefied in a condenser with heat release.
  • the liquid usually water
  • the liquid is pressurized by the feedwater pump and returned to the boiler.
  • One of the disadvantages of these devices is that in the relaxation processes in turbines high pressures of more than 15 bar to 200 bar must be generated, since in turbines, the realized pressure ratio of the relaxation for the achieved efficiency is crucial. This is the main reason that in large expansion turbines, the steam is released into the vacuum, whereby the condensation takes place at relatively low temperatures around 40 ° C.
  • the condensation heat generated during the condensation is dissipated in the heat exchange with cooling systems. This heat of condensation removed as waste heat essentially determines the efficiency achievable with thermal relaxation processes in turbines.
  • the invention has for its object to provide a method and an apparatus for converting heat energy into mechanical energy, which avoid the disadvantages mentioned, in particular have improved efficiency.
  • the expansion device is designed as a low-pressure expansion device, which is designed as a Roots blower, in which the working fluid is relaxed while heat energy is converted into mechanical energy.
  • the Roots blower as a low-pressure expansion device has the advantage that it can work with low gas friction and at the same time is insensitive to liquid droplets. Furthermore, this achieves Roots blower at rotational speed, where the sealing edge at the outer radius reaches speeds of more than about 1/10 of the speed of sound, a particularly high volumetric efficiency, since the gap acts as a dynamic seal at these speeds.
  • the Roots blower which may be in the form of an oval wheel pump, can operate at a pressure difference of 500 mbar with full efficiency and be used in a closed system at pressures of 10 to 0.5 bar. Another advantage is that in the said expansion devices only the pressure difference and not the mass or the expansion ratio is decisive for the efficiency. With already small pressure differences of less than two bar, full efficiency can be achieved. The physical reason lies in the high action time of almost 95% in the pump, since it is actually not a conventional relaxation in terms of a compressor, but the relaxation takes place by the exit of the gas in the discharge nozzle.
  • Roots blower and other comparable Niederbuch-Entlementsvormichtungen invention are distinguished from other relaxation devices in which by changing the scoop volume itself, the pressure change takes place. This has the consequence that the action time of this device is much smaller.
  • the heat energy of the vaporous working fluid is at least partially converted into mechanical energy.
  • the Roots blower is connected to a generator, which converts the mechanical energy into electrical energy.
  • the expanded working fluid can be condensed in a heat exchanger.
  • at least a portion of the condensed working fluid can be injected into the Roots blower during the expansion process, for example up to 16% of the mass fraction, wherein according to the invention the injected working fluid in the Roots blower in heat exchange with the steam condenses them partially in the blower and thereby the acting pressure difference of relaxation increases.
  • a seperator is connected downstream of the heat exchanger, which removes part of the condensed working fluid for injection into the Roots blower.
  • a pump which in turn is connected downstream of the separator, conveys the condensed working fluid back into the evaporator.
  • a pressure-controlled injection In order to prevent any fluid damage due to the collision of the rapidly rotating piston with droplets, in a further embodiment of the invention, a pressure-controlled injection.
  • the method comprises a first component of the working fluid, which is formed by a mixture, in and / or absorbed by the low-pressure expansion device by means of an absorbent, wherein heat is transferred to the remaining, vaporous second component, which is traceable.
  • the mixture is a minimum boiling point azeotrope for a given mixing ratio of the components. In the case of azeotropically evaporating mixtures with boiling point minimum, the evaporation temperatures can be lowered, depending on the type, so that they are below the condensation temperatures of the individual components. If the first component is adiabatically absorbed from the vapor mixture, the corresponding heat is transferred to the second component remaining in vapor form.
  • the removal of the heat of condensation can be done at an elevated temperature level.
  • the second vaporous component can be condensed in the evaporator of the working medium itself while releasing the heat of condensation, so that the corresponding proportion of the heat energy can be returned to the process.
  • the first component to be absorbed is water, it is possible for example to use an alkaline silicate solution as absorption medium.
  • the working medium for example an azeotropic mixture of water with perchlorethylene or silicone
  • the working medium can be evaporated, for example by heat exchange with primary energy from process vapors or heated process liquids and / or heat accumulators.
  • the absorption in which according to the invention the heat of absorption is transferred to the second component remaining in vapor form, whereby this component is heated to a temperature level above the boiling temperature of the azeotropic mixture, can take place in and / or after the expansion device.
  • One of the main advantages here is that by relaxing the azeotropic mixture in the Roots blower mechanical energy can be "recovered” and at the same time the relaxed working fluid, which has already done “work” in the relaxation process, by the separation (absorption) of the first of the second Component heats up due to the released heat of absorption.
  • This can be the remaining working fluid are returned to the relaxation, for example, to give off its heat in the heat exchanger.
  • the remaining working fluid only second component
  • the heat exchanger evaporator
  • the efficiency of the process for converting thermal energy into mechanical energy can be substantially improved.
  • the working medium is preferably formed by an azeotropic mixture with boiling point minimum or nearly azeotropic mixture.
  • an azeotropic mixture of course, the invention can also be based on almost azeotropic mixtures or non-azeotropic mixtures. High efficiencies can be achieved especially with an azeotropic or an almost azeotropic mixture.
  • the evaporation temperatures can be lowered, so that they are below the evaporation temperatures of the individual components.
  • the working fluid has a low volume-specific or low molar enthalpy of vaporization. This ensures that a large amount of motive steam is generated with a given amount of heat energy.
  • the working fluid is a solvent mixture comprising organic and / or inorganic solvent components. Examples include mixtures of water and selected silicones.
  • at least one component can also be a protic solvent.
  • the absorbent is a reversible immobilisable solvent which in the non-immobilized state of matter is the first component of the working fluid.
  • the reversible solvent in the boiling agent may advantageously be changed by physicochemical changes in which it can be changed from the non-immobilized state to the reversibly immobilized state by ionizing or complexing from the vapor phase and in the non-immobilized form as an absorbent works for the work equipment.
  • the vaporous working fluid already contains the absorbent (in the non-immobilized state) prior to relaxation.
  • the reversibly immobilized solvent is in a vaporous state and undergoes physico-chemical changes - such as pH shift, change in mole fraction and temperature in its volatility and / or in its vapor pressure - to the liquid state (comparable to vapor as Solvent in non-immobilized form and water as reversibly immobilisable solvent).
  • the advantage here is that the working fluid consists of two components, wherein at the same time the one component in the reversible immobilized state acts as an absorbent for the other component.
  • pH-dependent reversible immobilizable solvents for example, cyclic nitrogen compounds - such as pyridines - can be used.
  • the object of the invention is also achieved by a relaxation device for converting thermal energy into mechanical energy by relaxing a vaporous working fluid having the features of claim 15.
  • a relaxation device for converting thermal energy into mechanical energy by relaxing a vaporous working fluid having the features of claim 15.
  • the expansion device is designed as a low-pressure expansion device, which is designed as a Roots blower
  • two rotors run on elliptical or oval-shaped Wälzkurven from each other.
  • Known examples include the oval wheel pump or the Roots blower.
  • multi-bladed rotors elliptical rolling curves of higher order can be realized.
  • An advantage of Roots blowers with multi-bladed rotors is approximately in a reduction of the acting pulsations, since the chamber volume, based on the Schöpfvolumen, is smaller and the frequency of the gas outlet increases.
  • the Roots blower on a gas-tight seal between the pumping chamber and the gear chamber, to prevent the entry of oil in the vaporous working fluid.
  • the Roots blower further comprises a shaft which can be connected to the generator, whereby the mechanical can be converted into electrical energy.
  • the use of a Roots blower as Niederbuchenthovsvoriques opens up, especially when using waste heat at a temperature of less than about 100 ° C, for the drive of, for example, pumps or generators the possibility, on the one hand the process by injection of absorbents support, and on the other hand, because of the low pressure and temperature differences, the condensation energy of the working fluid, for example, with a heat pump to raise again to an elevated temperature level.
  • FIG. 1 shows a method for converting heat energy into mechanical energy produced in an evaporator 6 by relaxing a vaporous working medium which is vaporized in the evaporator 6 and expanded in a low-pressure expansion device 2.
  • the working fluid in this embodiment is water which is conveyed in the vaporous state of aggregation to the expansion device 2, which is designed as a Roots blower 2.
  • the expansion device 2 which is designed as a Roots blower 2.
  • the Roots blower 2 is connected to a generator 1 and drives it, so that mechanical energy is converted into electrical energy.
  • the relaxed motive steam is condensed in a heat exchanger 7.
  • the evaporator 6 is connected to the heat exchanger 7, wherein the condensate is conveyed by means of the pump 9 back into the evaporator 6.
  • the heat exchanger 7 is followed by a separator 3, which removes a portion of the condensed working fluid for injection into the Roots blower 2.
  • the Roots blower 2 has a plurality of injection openings, not shown, through which the condensed working fluid is injected into the pump chamber of the Roots blower 2, wherein a portion of the vaporous working fluid in the Roots blower 2 condenses, whereby the output pressure is reduced and thus the efficiency is improved. Due to the pressure difference with respect to the heat exchanger 7 connected to the outlet of the Roots blower 2, the rotors arranged in the Roots blower 2 are set in motion by the relaxing working medium, and those which enter with the relaxation Entropy change is delivered as mechanical energy.
  • a pump 9 is connected downstream of the separator 3, which conveys the condensed working fluid back into the evaporator 6.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (19)

  1. Procédé pour la transformation d'énergie calorifique que l'on obtient dans un évaporateur (6) en énergie mécanique par détente d'une substance active à l'état de vapeur qui est soumise à une évaporation dans l'évaporateur (6) et à une détente dans un dispositif de détente (2), caractérisé en ce que le dispositif de détente (2) est réalisé sous la forme d'un dispositif de détente basse pression qui est réalisé sous la forme d'un ventilateur à lobes dans lequel la substance active est soumise à une détente, si bien que l'énergie calorifique est ainsi transformée en énergie mécanique.
  2. Procédé selon la revendication 1, caractérisé en ce que la substance active détendue est condensée dans un échangeur de chaleur (7).
  3. Procédé selon la revendication 2, caractérisé en ce qu'au moins une partie de la substance active condensée est introduite par injection dans le ventilateur à lobes (2) au cours du processus de détente.
  4. Procédé selon la revendication 3, caractérisé en ce qu'au moins une partie de la substance active injectée dans le ventilateur à lobes (2) condense, par échange de vapeur, une partie de la substance active à l'état de vapeur et ainsi réduit la pression de sortie.
  5. Procédé selon la revendication 3 ou 4, caractérisé en ce que la substance active est introduite par injection dans le ventilateur à lobes (2) par réglage de la pression.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une pompe (9) transporte la substance active condensée dans l'évaporateur (6).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un séparateur (3) est monté à la suite de l'échangeur de chaleur (7), qui prélève une partie de la substance active condensée pour l'injection dans le ventilateur à lobes (2).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un premier composant de la substance active, qui est formé par un mélange, est absorbé dans et/ou après le dispositif de détente basse pression (2) au moyen d'un agent d'absorption, si bien que de la chaleur passe au deuxième composant qui subsiste à l'état de vapeur et peut être recyclée.
  9. Procédé selon la revendication 8, caractérisé en ce que le mélange forme, dans un rapport de mélange déterminé des composants, un azéotrope possédant un point d'ébullition minimal.
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce que la substance active est présente sous la forme d'un mélange azéotrope ou sous la forme d'un mélange approximativement azéotrope.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, via la chaleur qui a passé lors de l'absorption, le deuxième composant qui subsiste à l'état de vapeur est réchauffé à une température supérieure à la température d'ébullition du mélange, plus le deuxième composant étant condensé dans un échangeur de chaleur (7).
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'agent d'absorption est un solvant immobilisable de manière réversible qui, à l'état d'agrégat non immobilisé, représente le premier composant de la substance active.
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la substance active représente un mélange azéotrope d'eau et de silicium.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'agent d'absorption est une solution de silicate.
  15. Dispositif de détente (2) pour la transformation d'énergie calorifique en énergie mécanique par détente d'une substance de travail à l'état de vapeur, caractérisé en ce que le dispositif de détente (2) est réalisé sous la forme d'un dispositif de détente basse pression (2) qui est réalisé sous la forme d'un ventilateur à lobes (2).
  16. Dispositif de détente (2) selon la revendication 15, caractérisé en ce que le ventilateur à lobes (2) est relié à une génératrice (1).
  17. Dispositif de détente (2) selon la revendication 15 ou 16, caractérisé en ce que le ventilateur à lobes (2) est réalisé avec au moins une ouverture d'introduction par injection.
  18. Dispositif de détente (2) selon l'une quelconque des revendications précédentes, caractérisé en ce que le ventilateur à lobes (2) présente des rotors à ailettes multiples.
  19. Utilisation d'un dispositif de détente basse pression (2) qui est réalisé sous la forme d'un ventilateur à lobes, pour la transformation d'énergie calorifique que l'on obtient dans un évaporateur (6) en énergie mécanique par détente d'une substance active à l'état de vapeur qui est soumise à une évaporation dans l'évaporateur (6) et à une détente dans un dispositif de détente (2).
EP04816348A 2003-12-22 2004-12-22 Procede de conversion d'energie thermique en energie mecanique par un dispositif de detente basse tension Active EP1702140B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202004021185U DE202004021185U1 (de) 2003-12-22 2004-12-22 Entspannungsvorrichtung zur Umwandlung von Wärmeenergie in mechanische Energie mit einer Niederdruck-Entspannungsvorrichtung

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE2003160379 DE10360379A1 (de) 2003-12-22 2003-12-22 Niederdruck-Entspannungsmotor auf der Basis von Rootsgebläsen
DE2003160364 DE10360364A1 (de) 2003-12-22 2003-12-22 Offene Wärmepumpe unter Verwendung von flüssigkeitsüberlagerten Verdichtersystemen
DE2003160380 DE10360380A1 (de) 2003-12-22 2003-12-22 Extraktions-Wärmepumpe mit reversibel immobilisierbarem Lösemittel
DE2003161223 DE10361223A1 (de) 2003-12-24 2003-12-24 Niederdruck-Entspannungsmotor mit Treibdampftrennung mittels extraktiver Rektifikation
DE2003161203 DE10361203A1 (de) 2003-12-24 2003-12-24 Niederdruck-Entspannungsmotor mit Energierückführung
PCT/EP2004/053654 WO2005061858A1 (fr) 2003-12-22 2004-12-22 Procede de conversion d'energie thermique en energie mecanique par un dispositif de detente basse tension

Publications (2)

Publication Number Publication Date
EP1702140A1 EP1702140A1 (fr) 2006-09-20
EP1702140B1 true EP1702140B1 (fr) 2007-08-22

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ID=34714591

Family Applications (5)

Application Number Title Priority Date Filing Date
EP04816348A Active EP1702140B1 (fr) 2003-12-22 2004-12-22 Procede de conversion d'energie thermique en energie mecanique par un dispositif de detente basse tension
EP04804985A Withdrawn EP1706681A1 (fr) 2003-12-22 2004-12-22 Procede et installation d'augmentation de temperature d'un fluide de travail a l'etat de vapeur
EP04804988.6A Active EP1706599B1 (fr) 2003-12-22 2004-12-22 Procédé et installation de conversion d'une énergie thermique résultante en énergie mécanique
EP04804984A Withdrawn EP1702139A1 (fr) 2003-12-22 2004-12-22 Dispositif et procede de transformation d'energie thermique en energie mecanique
EP04804983.7A Active EP1706598B1 (fr) 2003-12-22 2004-12-22 Procede pour transformer l'energie thermique generee par des machines frigorifiques

Family Applications After (4)

Application Number Title Priority Date Filing Date
EP04804985A Withdrawn EP1706681A1 (fr) 2003-12-22 2004-12-22 Procede et installation d'augmentation de temperature d'un fluide de travail a l'etat de vapeur
EP04804988.6A Active EP1706599B1 (fr) 2003-12-22 2004-12-22 Procédé et installation de conversion d'une énergie thermique résultante en énergie mécanique
EP04804984A Withdrawn EP1702139A1 (fr) 2003-12-22 2004-12-22 Dispositif et procede de transformation d'energie thermique en energie mecanique
EP04804983.7A Active EP1706598B1 (fr) 2003-12-22 2004-12-22 Procede pour transformer l'energie thermique generee par des machines frigorifiques

Country Status (6)

Country Link
US (2) US7726128B2 (fr)
EP (5) EP1702140B1 (fr)
AT (1) ATE371101T1 (fr)
DE (1) DE502004004776C5 (fr)
ES (2) ES2293384T3 (fr)
WO (5) WO2005061858A1 (fr)

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DE102008013737A1 (de) 2008-03-06 2009-09-10 Heinz Manfred Bauer Verfahren zur Wandlung thermischer Energie in mechanische und weiter in elektrische Energie
DE102008036917A1 (de) 2008-08-05 2010-02-11 Heinz Manfred Bauer Verfahren zur Wandlung thermischer Energie in mechanische und weiter in elektrische Energie
EP3842621A1 (fr) 2019-12-27 2021-06-30 Ebel, Corinna Procédé de production de vapeur, producteur de vapeur et utilisation d'un ventilateur à piston rotatif
DE202021100874U1 (de) 2021-02-23 2022-05-30 Marlina Hamm Wälzkolbengebläse zur Entspannung eines dampfförmigen Mediums bei hohem Druck und guter Dichtigkeit

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DE102008024116A1 (de) * 2008-05-17 2009-11-19 Hamm & Dr. Oser GbR (vertretungsberechtiger Gesellschafter: Dr. Erwin Oser, 50670 Köln) Umwandlung der Druckenergie von Gasen und Dämpfen bei niedrigen Ausgangsdrücken in mechanische Energie
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DE102012016991A1 (de) 2012-08-25 2014-02-27 Erwin Oser Energieeffizientes Entspannungsaggregat
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CN112412560A (zh) * 2020-10-28 2021-02-26 北京工业大学 一种基于单螺杆膨胀机的卡琳娜循环系统

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DE102008013737A1 (de) 2008-03-06 2009-09-10 Heinz Manfred Bauer Verfahren zur Wandlung thermischer Energie in mechanische und weiter in elektrische Energie
DE102008036917A1 (de) 2008-08-05 2010-02-11 Heinz Manfred Bauer Verfahren zur Wandlung thermischer Energie in mechanische und weiter in elektrische Energie
EP3842621A1 (fr) 2019-12-27 2021-06-30 Ebel, Corinna Procédé de production de vapeur, producteur de vapeur et utilisation d'un ventilateur à piston rotatif
DE102019135820A1 (de) * 2019-12-27 2021-07-01 Corinna Ebel Verfahren zur Dampferzeugung, Dampferzeuger und Verwendung eines Wälzkolbengebläses
DE202021100874U1 (de) 2021-02-23 2022-05-30 Marlina Hamm Wälzkolbengebläse zur Entspannung eines dampfförmigen Mediums bei hohem Druck und guter Dichtigkeit
EP4047180A1 (fr) 2021-02-23 2022-08-24 Marlina Hamm Soufflante lobulaire destinée à l'expansion d'un milieu à l'état de vapeur à haute pression et ayant une bonne étanchéité

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ES2624638T3 (es) 2017-07-17
US7726128B2 (en) 2010-06-01
WO2005061858A1 (fr) 2005-07-07
EP1702140A1 (fr) 2006-09-20
EP1706598B1 (fr) 2013-10-16
US20080289336A1 (en) 2008-11-27
WO2005066465A1 (fr) 2005-07-21
EP1702139A1 (fr) 2006-09-20
WO2005061857A1 (fr) 2005-07-07
DE502004004776C5 (de) 2020-01-16
ES2293384T3 (es) 2008-03-16
US8132413B2 (en) 2012-03-13
WO2005066466A1 (fr) 2005-07-21
WO2005061973A1 (fr) 2005-07-07
EP1706599A1 (fr) 2006-10-04
US20080134680A1 (en) 2008-06-12
DE502004004776D1 (de) 2007-10-04
ATE371101T1 (de) 2007-09-15
EP1706599B1 (fr) 2017-02-15
EP1706598A1 (fr) 2006-10-04

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