EP2556309A1 - Dispositif de refroidissement a dephasage passif - Google Patents
Dispositif de refroidissement a dephasage passifInfo
- Publication number
- EP2556309A1 EP2556309A1 EP11730998A EP11730998A EP2556309A1 EP 2556309 A1 EP2556309 A1 EP 2556309A1 EP 11730998 A EP11730998 A EP 11730998A EP 11730998 A EP11730998 A EP 11730998A EP 2556309 A1 EP2556309 A1 EP 2556309A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- pressure
- gas
- cycle gas
- phase shift
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 46
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 230000010355 oscillation Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 63
- 230000010363 phase shift Effects 0.000 claims description 47
- 238000006073 displacement reaction Methods 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 229910052754 neon Inorganic materials 0.000 claims description 4
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 29
- 239000001307 helium Substances 0.000 description 5
- 229910052734 helium Inorganic materials 0.000 description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920005597 polymer membrane Polymers 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1423—Pulse tubes with basic schematic including an inertance tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
Definitions
- the invention relates to a cooling device comprising a cooling tube and a pressure oscillator connected to a first end of the cooling tube for generating a pressure oscillation and a displacement of a cycle gas contained in the cooling tube.
- the device also comprises means for phase-shifting the pressure oscillation with respect to the displacement of the cycle gas connected to a second end of the cooling tube.
- FIG. 1 shows, schematically, a conventional cryogenics device Stirling type.
- the device 1 comprises a tube 2 containing a compressible gas 3.
- the device also comprises a piston 4 at one end of the tube and heat exchangers 5a and 5b which are traversed by the gas.
- the exchanger 5a is placed near the piston 4 while the exchanger 5b is disposed at the other end of the tube 2.
- a mobile thermal regenerator 6 is disposed between the heat exchangers 5a and 5b.
- FIG. 2 schematically represents operating steps of the cooling device of FIG. 1.
- the gas undergoes alternating pressure variations. These pressure variations are coupled to displacements of the regenerator in the tube.
- the operation can be divided into four phases (A-D) based on the continuous Stirling cycle.
- the regenerator 6 is positioned near the exchanger 5b leaving a space, occupied by the gas 3, near the exchanger 5a.
- a first compression phase A the piston 4 is moved to the heat exchanger 5a to compress the gas 3.
- the gas is heated and part of the heat is transferred to the heat exchanger 5a.
- phase B transfer the regenerator 6 is moved to the exchanger 5a.
- a quantity of gas 3 passes through the regenerator 6 while cooling to occupy a volume located this time near the exchanger 5b.
- phase C expansion the piston 4 away from the exchanger 5a. The gas 3 relaxes and cools further. The gas thus produces the cooling effect.
- regenerator 6 During a last transfer phase D, the regenerator 6 returns to its initial position near the exchanger 5b. A quantity of gas 3 passes through the regenerator 6 again while heating up.
- the piston 4 acts as a source of pressure oscillations while the regenerator 6 acts as a thermal sponge by taking or supplying thermal energy to the gas passing therethrough. It also acts as a thermal insulator between the hot side of the tube 2 at the heat exchanger 5a and the cold side of the tube at the heat exchanger 5b.
- cryogenic devices operating according to this principle depends in particular on the phase difference between the displacement of the regenerator and the pressure wave of the gas. In the case of the device shown in FIG. 1, this phase shift is mechanically ensured by the displacement of the regenerator 6, which is approximately in quadrature of phase with respect to the displacement of the piston 4.
- the device of FIG. 1 has a good efficiency but a complex architecture, in particular because of the presence of a cold moving part constituted by the regenerator 6. Because of this complexity and the vibrations induced by the mobile regenerator, the device Stirling type cooling can not be used in some space or aeronautical applications.
- FIG 3 shows a cooling device having a reduced number of moving parts.
- This type of device is commonly called pulsed gas tube or pulsed tube.
- the phase shift between the displacement wave and the gas pressure wave is achieved passively by means of an inerting tube and a gas tank.
- the regenerator is fixed.
- This cooling device generally comprises a pressure oscillator 7 for compressing and moving the cycle gas in the tube 2.
- the tube 2 shown in U in FIG. 3, comprises a part formed by the regenerator 6 and a part formed by an expansion tube 8.
- a heat exchanger 5b is placed between the regenerator 6 and the expansion tube 8 to interface with the environment to be cooled.
- the oscillator 7 is connected to one end of the tube 2 on the regenerator 6 side while a phase shift system 9 is connected to the other end of the tube 2, on the side of the expansion tube 8.
- the phase shift system 9 allows to adjust the variations of flow and pressure of the cycle gas and conventionally comprises an inerting tube 10 and a gas tank 11.
- Heat exchangers 5a and 5c are disposed at the hot ends of the tube 2, respectively interfaces with the pressure oscillator 7 and with the phase shift system 9.
- the assembly comprising the regenerator 6, the expansion tube 8 and the phase shift system 9 may be called "cold finger" of the cooling device.
- the operating cycle of such a device is close to the Stirling cycle described in connection with FIG. 2.
- the pulsed gas tube is distinguished from the device of FIG. 1 by the immobility of the regenerator 6 and therefore the absence of a part. mobile in the cold part, thus reducing vibrations. The reliability of the device is then increased and the integration facilitated.
- a passive component formed by the expansion tube 8 and the phase shift system 9 is used. Part of the gas present in the expansion tube 8 acts as a virtual piston which transmits the work of the cold zone (exchanger 5b) to the phase shift system 9.
- the expansion tube 8 thermally isolates the "cold" heat exchanger 5b from the heat exchanger 5c "hot".
- the phase shift system 9 communicates with the expansion tube 8 and provides resistance to the displacement of the cycle gas. It creates the required phase shift between the pressure swing and the inlet gas flow of the inerting tube 10.
- the inerting tube is sometimes called a "capillary tube” for its geometric characteristics, preferably fine and elongated.
- the phase difference obtained varies as a function of the losses of charge, at the inlet and along the tube 10, and of the physical parameters of the gas used. It also depends on the frequency, the average pressure and the pressure oscillation at the inlet of the tube 10, the side of the exchanger 5c.
- FIG. 4 represents the phase and the amplitude of the gas flow at the inlet of the inertance tube for a given pressure wave and for different geometries of the inertance tube.
- the diameter of the tube varies from 1 to 3 mm and its length is between 500 and 3000 mm. It can be noted that the area of low flows and high phases, shown in dashed lines, is inaccessible whatever the geometry of the inertance tube used. Thus, one can not play on the geometrical parameters to improve the performances of phase shift and amplitude of the flow of the tube of inertance.
- the invention aims a compact cooling device and simple to achieve while having good cooling performance.
- the invention relates to a cooling device for obtaining an optimal phase shift passively.
- the device comprises a first sealed pressure transmission element arranged to separate the cycle gas from a fluid contained in the phase-shift means, the fluid being of a different nature from that of the cycle gas.
- FIG. 1 represents, schematically, a Stirling type cooling device according to the prior art
- FIG. 2 represents steps of an operating cycle of the device of FIG. 1
- FIG. 3 represents, in a schematic manner, a passive phase shift cooling device according to FIG. prior art
- FIG. 4 represents the phase and the amplitude of the gas flow of a device according to FIG. 3, for different geometries of the phase shift system
- FIGS. 5 and 6 schematically represent two particular embodiments of a device. cooling device comprising a separating element
- Figures 7 and 8 show two embodiments of a cooling device comprising two separating elements.
- FIG. 5 represents a cooling device, of the pulsed gas tube type, having a compact and optimized phase shift system.
- This device comprises, like the pulsed tube of FIG. 3, a cooling tube 2 containing a cycle gas and a pressure oscillator 7 connected to a first end of the tube 2.
- the cycle gas is preferably chosen from helium, neon, argon, nitrogen and carbon dioxide. Helium is particularly used because it allows to reach very low temperatures, between 4 K and 80 K approximately.
- the pressure oscillator 7 generates a pressure wave, preferably sinusoidal, for compressing and moving the cycle gas in the tube 2.
- a phase shift system 9 between the pressure oscillation and the displacement of the gas is connected to a second end of the tube 2.
- the cooling tube preferably comprises a regenerator 6, on the side of the first end, and an expansion tube 8, on the side of the second end.
- Heat exchangers 5a and 5c are respectively disposed at the first and second ends of the tube 2 and define the hot parts of the tube 2. These parts are generally at ambient temperature, as are the phase shift system 9 and the pressure oscillator 7.
- a heat exchanger 5b is disposed in the tube 2 between the regenerator 6 and the expansion tube 8. It forms the cold zone of the device intended to be brought into contact with a system to be cooled, for example an infrared detector.
- the phase shift system 9 comprises an inerting tube 10 connecting the second end of the cooling tube 2 to a gas tank 11. Inerting tube preferably has a diameter of between 0.5 mm and 5 mm and a length of between 500 mm and 5000 mm.
- phase shift can be improved by modifying the properties of the fluid, in particular the density to viscosity ratio.
- the device of FIG. 5 proposes to extend the possibilities of phase shift and amplitude of flow (FIG. 4) of the inerting tube 10 by using a phase shift fluid different from the cycle gas.
- the fluid used for the phase shift is separated from the cycle gas by a sealed pressure transmission element 13.
- the pressure transmission element 13 also allows the transfer of the compression and expansion work of the cycle gas to the phase shift fluid. It is a passive component that induces little vibration, preferably a membrane that deforms under the action of gas.
- the membrane 13 is preferably of metal or polymer.
- a polymer membrane provides greater elasticity. The deformations tolerated by a polymer membrane, which define the volume swept by the membrane in operation, will be greater than in the case of a metal membrane for a given diameter. The polymer membrane will be more compact than a metal membrane for the same volume swept.
- an elastomeric membrane 40 mm in diameter and 1 mm thick allows a deformation (arrow) of 4.5 mm for a swept volume of 3.8 cm 3 .
- a metal membrane for example aluminum, 60 mm in diameter and 0.1 mm thick will have a displacement of about 2 mm for a swept volume of 3.8 cm 3 . The metal membrane will have better durability while the elastomeric membrane will be easier to implement.
- the phase shift can be improved by increasing the ratio of the density to the viscosity of the fluid.
- the phase shift fluid has a density greater than that of the cycle gas or a viscosity lower than that of the cycle gas or the two combined.
- the ratio of the density to the viscosity of the fluid is preferably greater than twice that of the cycle gas and less than 15 times that of the cycle gas.
- the phase shift fluid is preferably selected from nitrogen, argon, neon and air.
- nitrogen, air or argon the ratio of density to viscosity is about 10 times that of helium.
- neon the ratio is about 3.6 times higher than that of helium.
- the device preferably comprises means for regulating the average position of the membrane 13, by balancing the average pressures on either side of the membrane.
- FIG. 6 represents an exemplary embodiment of regulation means.
- a first pressure sensor 14a is placed on one side of the membrane 13, for example in the tank 11 separated from the membrane by the inertance tube 10.
- a second sensor 14b is placed on the other side of the membrane 13 in the cooling tube 2, between the exchanger 5c and the membrane 13 for example.
- the means for regulating the average position of the membrane 13 comprise a device 15 for heating the tank 11.
- the gas tank is heated as a function of the difference in average pressures on either side of the membrane 13. That is, between the reservoir 11 and the cooling tube 2. In this manner, the average pressure in the phase shift system varies to maintain the diaphragm 13 about a centered position.
- the filling of the tank is done in such a way that the tank is at a pressure lower than the nominal pressure in the absence of heating.
- the pressure sensors 14a and 14b are replaced by a displacement sensor of the membrane, for example a sensor of the inductive, capacitive, laser or strain gage type. Such a sensor is connected to the heater 15.
- Fig. 7 shows a preferred embodiment of a cooling device.
- the device comprises, in addition to the elements of the device of the 5, a second sealed pressure transmission element 16, or membrane, between the inertance tube 10 and the tank 11.
- the tube 10 can then be filled with a separate phase-shift fluid and separated from the gas contained in the reservoir 11.
- the phase shift fluid is preferably incompressible.
- a liquid may be used for the phase shift in the tube 10 while the reservoir is filled with a compressible gas, preferably identical to the cycle gas.
- a liquid in the inertance tube 10 further increases the possibilities of phase shift. Indeed, thanks to the incompressible nature of the liquids, storage phenomena in the tube 10 are removed.
- a liquid has, in addition, a high density and allows a simpler implementation.
- the device further comprises a device for balancing the average gas pressures acting on the membranes 13 and 16, ie the average pressures of the reservoir 11 and the cooling tube 2. Thanks to this equilibration, the liquid between the membranes 13 and 16 is in a central position when the device is off and in the middle centered position when in operation.
- FIG. 8 represents an exemplary embodiment of this balancing device.
- the device comprises a connecting tube 18 which connects the end of the tube 2 from the side of the expansion tube 8 to the tank 11. The two volumes of gas are then connected and the average pressures equalize.
- the connection tube 18 has a high pressure drop so that the alternating flow rate in this tube 18 is negligible (two orders of magnitude) in front of the reciprocating flow rate of the inerting tube 10. Then, the operation of the cooling device is not altered.
- a balancing device comprising pressure sensors and a heating device, such as that described with reference to FIG. 6, is also possible in the case of two membranes.
- a pulsed gas tube operating at an average pressure of 20 bar and a hot side temperature of 300 K.
- the pressure swing has, in a conventional manner, an amplitude of 1 bar and a frequency of 50 Hz.
- An inert tube filled with conventional cycle gas measures, for example, 2 mm in diameter and 2000 mm in length.
- the inertance tube then offers a flow rate of 0.25 g / s and a phase shift (or phase) of 25 °.
- the inerting tube makes it possible to obtain an identical flow rate with a greater phase shift, of the order of 60 °.
- the inerting tube then has a diameter of about 1 mm and a length of about 1700 mm.
- the inertance tube Using two membranes and water as a phase shift fluid, it is possible to obtain a similar flow rate of 0.2 g / s, with an even greater phase shift, of the order of 75 °.
- the dimensions of the inertance tube are then a diameter of 2.0 mm and a length of about 1600 mm.
- phase shift between the pressure and the displacement of the cycle gas is optimized by the choice of a phase shift fluid associated with a geometry of the inertance tube.
- An adjustable valve can be used to experimentally adjust the pressure drops and thus the phase shift and the amplitude of the flow. In the long term, it can be replaced by a calibrated orifice. It can be placed between the first membrane and the pulsed tube or between the second membrane and the buffer volume formed by the reservoir. Such a circuit will also provide energy dissipation at the second end of the cooling tube.
- cooling device may include an additional asymmetric recirculation circuit to adjust the flow at the hot end of the pulsed tube.
- This circuit preferably connects the first end of the cooling tube, on the side of the pressure oscillator, to the second end of the tube before the first membrane.
- This circuit may be formed by a nonreturn valve associated with a pressure drop, for example a needle valve, an orifice or another capillary tube.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1001493A FR2958734B1 (fr) | 2010-04-09 | 2010-04-09 | Dispositif de refroidissement a dephasage passif. |
| PCT/FR2011/000205 WO2011124790A1 (fr) | 2010-04-09 | 2011-04-08 | Dispositif de refroidissement a dephasage passif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2556309A1 true EP2556309A1 (fr) | 2013-02-13 |
| EP2556309B1 EP2556309B1 (fr) | 2018-08-22 |
Family
ID=43088414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11730998.9A Not-in-force EP2556309B1 (fr) | 2010-04-09 | 2011-04-08 | Dispositif de refroidissement a dephasage passif |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10222097B2 (fr) |
| EP (1) | EP2556309B1 (fr) |
| FR (1) | FR2958734B1 (fr) |
| WO (1) | WO2011124790A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CL2017003498A1 (es) * | 2017-12-29 | 2018-05-04 | Ahr Energy Spa | Método para producir transferencia de calor entre dos o mas medios y un sistema para ejecutar dicho método. |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2104155A (en) * | 1981-08-19 | 1983-03-02 | British Aerospace | Stirling cycle machines |
| JP2844435B2 (ja) * | 1995-06-27 | 1999-01-06 | 岩谷産業株式会社 | パルス管冷凍機 |
| JP2697707B2 (ja) * | 1995-10-12 | 1998-01-14 | 株式会社移動体通信先端技術研究所 | パルス管冷凍機 |
| US5791149A (en) * | 1996-08-15 | 1998-08-11 | Dean; William G. | Orifice pulse tube refrigerator with pulse tube flow separator |
| US5813235A (en) * | 1997-02-24 | 1998-09-29 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Resonantly coupled α-stirling cooler |
| CN1211619C (zh) * | 1998-07-23 | 2005-07-20 | Lg电子株式会社 | 与无油型压缩机做成一体的脉冲管致冷器 |
| US6578364B2 (en) * | 2001-04-20 | 2003-06-17 | Clever Fellows Innovation Consortium, Inc. | Mechanical resonator and method for thermoacoustic systems |
| DE102004033027B4 (de) * | 2004-07-07 | 2008-07-03 | TransMIT Gesellschaft für Technologietransfer mbH | Erfindung betreffend Tieftemperaturkühlvorrichtungen |
| CN2913968Y (zh) * | 2006-01-17 | 2007-06-20 | 浙江大学 | 耦合热声发动机和脉管制冷机的波纹管连接装置 |
| WO2009010971A2 (fr) * | 2007-07-16 | 2009-01-22 | Technion - Research & Development Foundation Ltd | Compresseur piezo-hydraulique/oscillateur de pression pour le refroidissement cryogenique et d'autres applications |
-
2010
- 2010-04-09 FR FR1001493A patent/FR2958734B1/fr not_active Expired - Fee Related
-
2011
- 2011-04-08 US US13/640,207 patent/US10222097B2/en not_active Expired - Fee Related
- 2011-04-08 WO PCT/FR2011/000205 patent/WO2011124790A1/fr not_active Ceased
- 2011-04-08 EP EP11730998.9A patent/EP2556309B1/fr not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011124790A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2958734B1 (fr) | 2013-02-22 |
| US20130025841A1 (en) | 2013-01-31 |
| WO2011124790A1 (fr) | 2011-10-13 |
| EP2556309B1 (fr) | 2018-08-22 |
| FR2958734A1 (fr) | 2011-10-14 |
| US10222097B2 (en) | 2019-03-05 |
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