EP2914824A1 - Système d'alimentation électrique augmenté à cycle de rankine à fluide organique pour unités de réfrigération mobiles - Google Patents

Système d'alimentation électrique augmenté à cycle de rankine à fluide organique pour unités de réfrigération mobiles

Info

Publication number
EP2914824A1
EP2914824A1 EP13788858.2A EP13788858A EP2914824A1 EP 2914824 A1 EP2914824 A1 EP 2914824A1 EP 13788858 A EP13788858 A EP 13788858A EP 2914824 A1 EP2914824 A1 EP 2914824A1
Authority
EP
European Patent Office
Prior art keywords
power
electric
generator
refrigeration unit
refrigerant
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.)
Withdrawn
Application number
EP13788858.2A
Other languages
German (de)
English (en)
Inventor
Jean Yamanis
Stevo Mijanovic
RobertA. CHOPKO
Thomas J. Bekasi
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Publication of EP2914824A1 publication Critical patent/EP2914824A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/003—Transport containers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
    • 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
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/10—The dispersed energy generation being of fossil origin, e.g. diesel generators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • This invention relates generally to mobile refrigeration units and, more particularly, to a mobile refrigeration unit having an on-board power supply system for generating electric current for driving a plurality of components of a refrigeration system of the mobile refrigeration unit.
  • Refrigerated trucks and trailers are commonly used to transport perishable goods, such as, for example, produce, meat, poultry, fish, dairy products, cut flowers, and other fresh or frozen perishable products.
  • a transport refrigeration unit is mounted to the truck or to the trailer operatively associated with a cargo space defined within the truck or trailer for maintaining a controlled temperature environment within the cargo space.
  • the compressor, and typically other components of the refrigeration system, for example fans are powered by a prime mover, typically a diesel engine, carried on and considered part of the transport refrigeration unit.
  • a prime mover typically a diesel engine
  • an on-board diesel engine drives an on-board AC synchronous generator that generates AC current used to power an electric compressor motor for driving the refrigerant compressor of the transport refrigeration unit and also powering electric AC fan motors for driving the condenser/gas cooler and evaporator fans.
  • the diesel engine In transport refrigeration applications, the diesel engine is sized sufficiently to drive the electric generator to generate all the electric power required to power the refrigeration system when operating at maximum cooling capacity, such as during pull down of the temperature within the cargo space of the truck or trailer. However, when the refrigeration system is operating at a lower steady state capacity, such as during operation for maintaining the temperature within the cargo space within a narrow range of a set point control temperature, the diesel engine is operated at a reduced throttle setting to reduce fuel consumption. However, when operating at a lower throttle setting, the efficiency of the diesel engine is also reduced. Summary of the Invention
  • a mobile refrigeration unit includes an on-board power supply system wherein waste heat from a fuel-fired engine is recovered and used in generating additional electric power to augment the electric power generated by the diesel engine.
  • the mobile refrigeration unit includes a refrigeration system having a plurality of electric motor driven components and an on-board power supply system for generating electric current and supplying the electric current to the plurality of electric motor driven components.
  • the power supply system includes: a first generator for generating a first portion of electric power for powering the plurality of electric motor driven components; a second generator for generating a first portion of electric power for powering the plurality of electric motor driven components; a fuel fired engine driving the first generator; and an organic Rankine cycle system driving the second generator.
  • An engine exhaust line connects the fuel-fired engine in exhaust gas flow communication with the organic Rankine system whereby a portion of the waste heat in the engine exhaust gases may be recovered and used in the organic Rankine cycle system.
  • the mobile refrigeration unit may further include a storage battery and a power management system including a power- switching module in electric connection with the first generator, the second generator, and the storage battery.
  • the power management system is configured to selectively direct electric current received from the first generator and the second generator to power the electric components of the refrigeration system as needed.
  • the power management system may be configured to direct any excess electric current generated to the storage battery.
  • the power management system may be configured to draw electric current from the storage battery as needed.
  • FIG. 1 is a side elevation view of a refrigerated trailer equipped with a transport refrigeration unit
  • FIG. 2 is a schematic diagram illustrating an embodiment of a transport refrigeration unit having a power supply system including an organic Rankine system augmenting a diesel engine; and [0011]
  • FIG. 3 is a schematic diagram illustrating an embodiment of the power supply system disclosed herein.
  • FIG. 1 there is depicted a refrigerated transport vehicle
  • the refrigerated transport vehicle 12 is a refrigerated tractor- trailer having a tractor 14 pulling a trailer 16 defining a cargo box 18.
  • a mobile refrigeration unit 20 is mounted to the trailer 16, for example to the front wall of the trailer 16, for establishing and maintaining a temperature-controlled environment within the cargo box 18.
  • the mobile refrigeration unit 20 is commonly referred to as a transport refrigeration unit (TRU), which terminology will be used herein.
  • TRU transport refrigeration unit
  • the transport refrigeration unit 20 includes an on-board power supply system
  • the refrigeration system comprises a refrigerant vapor compression system having a compression device 26, a refrigerant heat rejection heat exchanger 28, an expansion device 25, and a refrigerant heat absorption heat exchanger 30 disposed in serial refrigerant flow relationship in a refrigerant circuit and arranged to carry out a refrigeration cycle.
  • the compression device 26, the refrigerant heat rejection heat exchanger 28 and the power supply system 22 are disposed external of the trailer 12, while the refrigerant heat absorption heat exchanger 30, which functions as an evaporator, is disposed in operative association within the space defining the cargo box 18.
  • the compression device 26 is driven by an electric motor 32 to compress refrigerant from a suction pressure to a discharge pressure and circulate the refrigerant through the refrigerant circuit.
  • the compression device 26 may be any electric motor driven compressor, hermetic or semi-hermetic, such as, for example, but not limited to a
  • the hot, high pressure refrigerant vapor discharged from the compression device 26 passes through the refrigerant heat rejection heat exchanger 28 in heat exchange relationship with a cooling medium, typically ambient air.
  • a cooling medium typically ambient air.
  • the refrigerant heat rejection heat exchanger 28 functions either as a refrigerant gas cooler or a refrigerant gas condenser.
  • an air moving device 34 passes ambient air from the environment external of the refrigeration unit though the refrigerant heat rejection heat exchanger 28 in heat exchange relationship with the refrigerant passing through the refrigerant heat rejection heat exchanger 28.
  • the gas cooler/condenser air moving device 34 is driven by an electric motor 36.
  • the gas cooler/condenser air moving device 34 may comprise an electric motor driven fan, such as an axial fan or a centrifugal fan.
  • the refrigerant heat absorption heat exchanger 30 functions as an evaporator wherein refrigerant having traversed the expansion device 25, which may be an electronic expansion valve, a thermostatic expansion device, a capillary tube or other expansion device, is passed with air drawn from the temperature controlled environment with the cargo box 18, whereby the refrigerant is evaporated and typically superheated and the air cooled.
  • An air moving device 38 is provided for drawing air from the cargo box 18, i.e. the temperature controlled space, passing the air through the refrigerant heat rejection heat exchanger 30, and circulating the cooled air back to the cargo box 18.
  • the evaporator air moving device 38 is driven by an electric motor 40.
  • the evaporator air moving device 38 may comprises an electric motor driven fan, such as an axial fan or a centrifugal fan.
  • the power supply system 22 generates electric current and supplies electric current as needed to power a plurality of electric motor driven components of the refrigerant vapor compression system, including the aforementioned compression device drive motor 32, the gas cooler/condenser electric drive motor 36, and the evaporator electric drive motor 40.
  • the power supply system 22 may also supply electric current to power a refrigeration system controller (not shown), various control devices such as solenoid valves and other electronic valves and devices, lighting and electric current consuming devices.
  • the power supply system may be configured to provide alternating current (AC) power, direct current (DC) power, or both AC and DC power.
  • the power supply system 22 includes a first generator 42 for generating a first portion of electric power for powering the plurality of electric motor driven components, a second generator 44 for generating a first portion of electric power for powering the plurality of electric motor driven components, a fuel-fired engine 46 driving the first generator 42, and an organic Rankine cycle (ORC) system 48 driving the second generator 44.
  • the fuel-fired engine 46 comprises a Diesel fueled piston engine.
  • the fuel-fired engine 46 may comprise virtually any fueled-fired engine alternative that produces exhaust gases.
  • the power supply system 22 further includes a power management system 72 that includes a power switching module 74 and a power bus 76 which is in electrical communication with and receives the current generated by each of the first and second generators 41 and 42.
  • the power bus 76 is in electrical communication with each of the refrigeration system loads, including but not limited to the compressor motor 32, the condenser/gas cooler fan 36 and the evaporator fan 40.
  • each of the first and second generators 42 and 44 may comprise alternating current (AC) generators.
  • AC alternating current
  • each of the first and second generators 42 and 44 may comprise engine driven synchronous AC generators of the type disclosed in U.S. Pat. No. 6,321,550, assigned to Carrier Corporation.
  • the power management system 72 may be configured to receive either or both AC and DC current and distribute either or both AC and DC current.
  • the ORC system 48 may comprise a conventional ORC system having a working fluid pump 50, a working fluid evaporator 52, an expander 54, and a condenser 56 disposed in series refrigeration flow relationship in a closed loop working fluid circuit.
  • the ORC system 48 may also include a regenerative heat exchanger 60 having a first pass 62 and a second pass 64 disposed in heat exchange relationship, the first pass 62 disposed in the working fluid circuit between the pump 50 and the working fluid inlet to the evaporator 52 and the second pass 64 disposed in the working fluid circuit 58 between the working fluid outlet of the evaporator 52 and the working fluid inlet to the condenser 56.
  • An air moving device 58 may be provided in operative association with condenser 56 for passing ambient air through the condenser 56 in heat exchange with the working fluid passing through the condenser 56 to cool the working fluid.
  • the air moving device 58 comprises a fan driven by an electric motor 55 powered by electric current generated by the power supply system 22.
  • the air moving device 58 could be belt driven off the fuel-fired engine 46.
  • the condenser 56 of the ORC system 48 could be disposed in association with the condenser/gas cooler 28 of the refrigeration system 24 whereby the condenser/gas cooler air moving device, e.g.
  • the electric motor driven fan 34 passes a flow of ambient air as the cooling medium through both the ORC condenser 56 and the refrigeration system condenser 28.
  • the combustion of the fuel produces exhaust gases that are vented to the atmosphere.
  • the refrigeration unit 20 and method disclosed herein a portion of the waste heat content of the hot exhaust gases is recovered and utilized in the ORC system 48.
  • the refrigeration unit 20 further includes an engine exhaust line 66 connecting the exhaust system of the fuel fired engine 46 in exhaust gas flow communication with the ORC system 48, whereby a portion of waste heat in the engine exhaust gases may be recovered in the ORC system. For example, as depicted in FIG.
  • the evaporator 52 of the ORC system 48 may include an exhaust gas pass 68 disposed in heat exchange relationship with a working fluid pass 70 whereby the working fluid circulating through the working fluid circuit 58 as the working fluid pass 70 passes in heat exchange relationship with the hot exhaust gases passing through the exhaust gas pass 68 prior to venting into the atmosphere.
  • the engine exhaust gases typically have a temperature in the range of 500° F -
  • the fuel-fired engine 46 will be operated at a lower throttle to conserve fuel and a lower volume flow of hot engine gases will flow through the exhaust gas pass 68 of the evaporator 52 of the ORC system 48. Consequently, the amount of waste heat supplied to the ORC system 48 and the electric current output generated by the second generator 44 driven by the ORC system 48 will be lower than when the fuel-fired engine 46 is operating at full throttle. Additionally, since the fuel-fired engine 46 is operated at a lower throttle, the electric current output produced by the second generator 42 driven by the engine 46 will be reduced.
  • the combined electric current output of the first generator 42 driven by the fuel fired engine 46 and the second generator 44 driven by the ORC system 48 will be lower precisely when the electric current demand to power the refrigeration system loads will be at or near its lowest imposed current demand when the refrigeration system 24 is in operation.
  • the combined electric current output from the first generator 42 driven by the fuel-fired engine 46 and the second generator 44 driven by the ORC system 48 may exceed the demand for electric current imposed by the refrigeration system 24.
  • the excess electric current generated may be directed by the power switching module 74 to a power storage device, such as storage battery 78.
  • a power conditioner 80 may be interdisposed in electric communication between the power switching module 74 and the storage battery 78.
  • the power conditioner 80 may include one or more of an AC to DC convertor 82, a DC to AC convertor 84, and a DC to DC conditioner 86.
  • the power switching module may be configured to direct that excess AC current to the power conditioner 80 wherein the AC current passes through the AC to DC convertor 82 and is delivered to the storage battery 78 as DC current and stored for later use. If at any time, supplemental power is required to augment the AC current then being generated by the first and second generators 42 and 44, the power management system 72 may be configured to draw DC current from the storage battery 78 through the power conditioner 80, wherein the DC current is converted to AC current by the DC to AC convertor 84, to the power switching module 74 which directs the supplement AC current to the power bus 76.
  • the power management system 72 may be configured to again draw DC current from the storage battery 78 through the power conditioner 80, wherein the DC current is converted to AC current by the DC to AC convertor 84, to the power switching module 74 which directs the AC current to the power bus 76.
  • the power management module 72 may also be configured to draw DC current from the storage battery 78 through the DC to DC conditioner 86, which may for example include a voltage step-up transformer and/or a voltage step-down transformer, to the power switching device 74 to be delivered to the power bus 76 for powering refrigeration system DC loads, such as for example, electronic controllers, computers, control valves.
  • the DC to DC conditioner 86 may for example include a voltage step-up transformer and/or a voltage step-down transformer, to the power switching device 74 to be delivered to the power bus 76 for powering refrigeration system DC loads, such as for example, electronic controllers, computers, control valves.
  • the refrigeration unit 20 disclosed herein may also be used in other mobile refrigeration applications where a refrigeration unit equipped with a self-contained electric power generation capability is desired.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

La présente invention concerne une unité de réfrigération mobile comprenant un système de réfrigération possédant une pluralité de composants entraînés par moteur électrique et un système d'alimentation électrique intégré destiné à générer un courant électrique et à appliquer le courant électrique à la pluralité de composants entraînés par moteur électrique. Le système d'alimentation électrique comprend un premier générateur destiné à générer une première partie d'énergie électrique, un second générateur destiné à générer une première partie d'énergie électrique, un moteur à combustible entraînant le premier générateur, et un système à cycle de Rankine à fluide organique entraînant le second générateur. Une ligne d'échappement de moteur relie le moteur à combustible en communication d'écoulement de gaz d'échappement au système Rankine à fluide organique. L'unité peut également comprendre une batterie de stockage et un système de gestion d'énergie.
EP13788858.2A 2012-10-30 2013-10-28 Système d'alimentation électrique augmenté à cycle de rankine à fluide organique pour unités de réfrigération mobiles Withdrawn EP2914824A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261720073P 2012-10-30 2012-10-30
PCT/US2013/067003 WO2014070633A1 (fr) 2012-10-30 2013-10-28 Système d'alimentation électrique augmenté à cycle de rankine à fluide organique pour unités de réfrigération mobiles

Publications (1)

Publication Number Publication Date
EP2914824A1 true EP2914824A1 (fr) 2015-09-09

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EP13788858.2A Withdrawn EP2914824A1 (fr) 2012-10-30 2013-10-28 Système d'alimentation électrique augmenté à cycle de rankine à fluide organique pour unités de réfrigération mobiles

Country Status (3)

Country Link
US (1) US20150292784A1 (fr)
EP (1) EP2914824A1 (fr)
WO (1) WO2014070633A1 (fr)

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WO2018226857A1 (fr) 2017-06-07 2018-12-13 Carrier Corporation Commande d'unité frigorifique de transport à dispositif de stockage d'énergie
EP3635309B1 (fr) 2017-06-07 2022-09-14 Carrier Corporation Système d'unité frigorifique de transport et procédé de fonctionnement d'un système d'unité frigorifique de transport
WO2019071109A1 (fr) * 2017-10-06 2019-04-11 Carrier Corporation Système frigorifique pour transport doté d'un dispositif de stockage d'énergie
US10723202B2 (en) 2018-03-30 2020-07-28 Thermo King Corporation Systems and methods for coordinated control of multiple transport refrigeration systems
US10596878B2 (en) * 2018-03-30 2020-03-24 Thermo King Corporation Systems and methods for management of eTRU
CN108583203A (zh) * 2018-04-10 2018-09-28 西安交通大学 一种燃料电池余热驱动的电动汽车动力蓄电池热管理系统
EP3850280B1 (fr) * 2018-09-13 2023-06-28 Carrier Corporation Unité frigorifique de transport faisant appel à la chaleur perdue du moteur pour le dégivrage
WO2021024298A1 (fr) * 2019-08-02 2021-02-11 モビリティエナジーサーキュレーション株式会社 Dispositif de production d'énergie électrique dans un véhicule frigorifique équipé de celui-ci
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US20150292784A1 (en) 2015-10-15
WO2014070633A1 (fr) 2014-05-08

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