WO2010040040A1 - Hydraulic accumulator and method of manufacture - Google Patents
Hydraulic accumulator and method of manufacture Download PDFInfo
- Publication number
- WO2010040040A1 WO2010040040A1 PCT/US2009/059359 US2009059359W WO2010040040A1 WO 2010040040 A1 WO2010040040 A1 WO 2010040040A1 US 2009059359 W US2009059359 W US 2009059359W WO 2010040040 A1 WO2010040040 A1 WO 2010040040A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liner
- bellows
- chamber
- accumulator
- bellows assembly
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 8
- 239000012530 fluid Substances 0.000 claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 229920006231 aramid fiber Polymers 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 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 abstract description 2
- 239000007789 gas Substances 0.000 description 32
- 230000008901 benefit Effects 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/106—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means characterised by the way housing components are assembled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4043—Control of a bypass valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/405—Housings
- F15B2201/4053—Housings characterised by the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/405—Housings
- F15B2201/4056—Housings characterised by the attachment of housing components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/60—Assembling or methods for making accumulators
- F15B2201/605—Assembling or methods for making housings therefor
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
Definitions
- Hydraulic accumulators are energy storage devices that maintain a reserve of pressurized fluid to be provided to a hydraulic system when fluid pressure in the system drops.
- One type of hydraulic accumulator uses precharged gas that maintains pressure against fluid in the accumulator, forcing some fluid out of the accumulator and into a hydraulic system line when fluid pressure drops. When fluid pressure in the hydraulic system rises, fluid reenters the accumulator to maintain a reserve. Hydraulic accumulators help to balance pressure fluctuations in the hydraulic system.
- One of the bellows end caps is secured to one of the polymer end portions so that the other bellows end cap is movable within the liner toward an opening (i.e., a fluid port) through the liner and the composite.
- Covering the liner with a composite may be accomplished by overwrapping the liner with a composite of carbon fiber, fiberglass or aramid fiber. Alternatively, a braided composite may be pulled over the liner.
- the combination of metal bellows, a polymer liner, and a composite overwrap provides a low cost, maintenance free and lightweight hydraulic accumulator especially suitable for use in a hydraulic automotive vehicle, although its use is not limited to such.
- the end cap 34 supports a fluid retention mechanism
- the poppet 66 does not cover an opening 86 through the fluid port 70.
- fluid in the first chamber 35 is in communication with fluid in line 14 of Figure 1, and flows to the remainder 16 of the hydraulic system 12 when fluid pressure in line 14 drops below the gas pressure in the gas chamber 37, with the bellows 32 expanding toward the fluid port 70 to displace fluid from the chamber 35.
- the second chamber 37 thus expands in volume as fluid is displaced from the first chamber, with gas pressure in the second chamber 37 falling as the bellows 32 expand.
- the extreme expanded position of the bellows 32 is shown in Figures 1 and 2. In the extreme expanded position, also referred to as the closed position, the poppet 60 contacts the seal ring 80 at the fluid port 70, covering the opening 86.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0922741A BRPI0922741A2 (en) | 2009-10-02 | 2009-10-02 | accumulator for a hydraulic system and method for manufacturing a hydraulic accumulator |
CN200980147869.6A CN102227564B (en) | 2008-10-03 | 2009-10-02 | Hydraulic accumulator and manufacture method |
CA2747071A CA2747071A1 (en) | 2008-10-03 | 2009-10-02 | Hydraulic accumulator and method of manufacture |
EP09748874A EP2340371A1 (en) | 2008-10-03 | 2009-10-02 | Hydraulic accumulator and method of manufacture |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10237408P | 2008-10-03 | 2008-10-03 | |
US61/102,374 | 2008-10-03 | ||
US12/572,440 US8418727B2 (en) | 2008-10-03 | 2009-10-02 | Hydraulic accumulator and method of manufacture |
US12/572,440 | 2009-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010040040A1 true WO2010040040A1 (en) | 2010-04-08 |
Family
ID=41395007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/059359 WO2010040040A1 (en) | 2008-10-03 | 2009-10-02 | Hydraulic accumulator and method of manufacture |
Country Status (6)
Country | Link |
---|---|
US (1) | US8418727B2 (en) |
EP (1) | EP2340371A1 (en) |
KR (1) | KR20110065551A (en) |
CN (1) | CN102227564B (en) |
CA (1) | CA2747071A1 (en) |
WO (1) | WO2010040040A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013026521A1 (en) * | 2011-08-19 | 2013-02-28 | Hydac Technology Gmbh | Pressure vessel |
WO2017142534A1 (en) * | 2016-02-17 | 2017-08-24 | Borgwarner Inc. | Stop/start accumulator design |
DE102021005656A1 (en) | 2021-11-15 | 2023-05-17 | Hydac Technology Gmbh | bellows accumulator |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012039899A2 (en) * | 2010-09-22 | 2012-03-29 | Limo-Reid, Inc. | Ultra lightweight and compact accumulator |
KR101379389B1 (en) * | 2012-08-30 | 2014-04-04 | 한국에너지기술연구원 | Variable volume receiver, refrigerant cycle and the method of the same |
US9127811B2 (en) * | 2013-06-05 | 2015-09-08 | Louis P. Vickio, Jr. | Hydraulic accumulator |
DE102013011115A1 (en) * | 2013-07-03 | 2015-01-08 | Hydac Technology Gmbh | Device for setting a media pressure with respect to an ambient pressure |
CN105247255B (en) * | 2013-08-02 | 2017-06-06 | 伊格尔工业股份有限公司 | Metal bellows |
EP3055601B1 (en) * | 2013-10-08 | 2020-03-04 | Performance Pulsation Control, Inc. | Composite pulsation dampener |
DE102015012253A1 (en) * | 2015-09-18 | 2017-03-23 | Hydac Technology Gmbh | Bellows accumulator, in particular pulsation damper |
DE102015223529A1 (en) | 2015-11-27 | 2017-06-01 | Robert Bosch Gmbh | Lightweight piston accumulator for vehicles |
US10641431B2 (en) * | 2016-12-22 | 2020-05-05 | Steelhead Composites, Llc | Lightweight composite overwrapped pressure vessels with sectioned liners |
US11448364B2 (en) | 2016-12-22 | 2022-09-20 | Steelhead Composites, Inc. | Lightweight composite overwrapped accumulators |
DE102018007279A1 (en) | 2018-09-14 | 2020-03-19 | Hydac Technology Gmbh | Bellows accumulator |
CN110273866A (en) * | 2019-07-12 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Wind piston accumulator |
US20230339278A1 (en) * | 2022-04-22 | 2023-10-26 | DRiV Automotive Inc. | Bellows accumulator fixation apparatus for suspension dampers |
US20230341022A1 (en) * | 2022-04-22 | 2023-10-26 | DRiV Automotive Inc. | Method of assembling a bellows accumulator for suspension dampers |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB884079A (en) * | 1958-03-10 | 1961-12-06 | Joseph Wilson Yowell | Improvements in or relating to corrugated tubing such as is used in bellows |
GB2134984A (en) * | 1983-02-08 | 1984-08-22 | Olaer Ind Sa | Composite pressure vessel |
EP0266971A2 (en) * | 1986-10-31 | 1988-05-11 | Ecodyne Corporation | Pressure vessel |
DE10142038A1 (en) * | 2001-02-23 | 2002-09-05 | Continental Teves Ag & Co Ohg | Pressure medium store, for an electro-hydraulic vehicle brake system, has bellows within a housing to give separated pressure zones in an inexpensive structure |
US6478051B1 (en) * | 1998-11-25 | 2002-11-12 | Continental Teves Ag & Co., Ohg | Pressure means storage device |
US6527012B1 (en) * | 1999-05-29 | 2003-03-04 | Hydac Technology Gmbh | Hydropneumatic pressure accumulator |
JP2005095983A (en) * | 2003-09-05 | 2005-04-14 | Nsk Ltd | Bellows pipe, manufacturing method therefor, and die |
DE10347884B3 (en) * | 2003-10-10 | 2005-06-02 | Reflex Winkelmann Gmbh & Co. Kg | Tank for hydraulic system has bellows-type one-piece container plugged into body and sealed to it |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4785956A (en) * | 1982-08-23 | 1988-11-22 | Essef Industries, Inc. | Tank fitting for a filament-wound vessel |
EP1052412B1 (en) * | 1999-05-12 | 2005-03-09 | NHK Spring Co., Ltd. | Accumulator and manufacturing process thereof |
JP2002013501A (en) * | 2000-06-30 | 2002-01-18 | Nok Corp | Accumulator |
US6405760B1 (en) * | 2001-02-05 | 2002-06-18 | Perkinelmer, Inc. | Accumulator |
US7121304B2 (en) * | 2001-12-19 | 2006-10-17 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Low permeation hydraulic accumulator |
JP2005155785A (en) * | 2003-11-26 | 2005-06-16 | Nok Corp | Accumulator |
DE102004004341A1 (en) * | 2004-01-29 | 2005-08-18 | Hydac Technology Gmbh | Pressure accumulator, in particular pulsation damper |
CN101003392A (en) * | 2006-01-17 | 2007-07-25 | 北京洁明天地环保设备有限公司 | Pressure vessel for water treatment, and manufacturing method |
DE102006004120A1 (en) * | 2006-01-25 | 2007-07-26 | Hydac Technology Gmbh | Hydraulic accumulator, has coaxially abutting plastics casings, with poppet valve for controlling supply and extraction of medium |
US7527074B1 (en) * | 2007-10-15 | 2009-05-05 | The United States of America, as represented by the Administrator of the United States Enviromental Protection Agency | Hydraulic pressure accumulator |
-
2009
- 2009-10-02 CN CN200980147869.6A patent/CN102227564B/en not_active Expired - Fee Related
- 2009-10-02 CA CA2747071A patent/CA2747071A1/en not_active Abandoned
- 2009-10-02 WO PCT/US2009/059359 patent/WO2010040040A1/en active Application Filing
- 2009-10-02 KR KR1020117010077A patent/KR20110065551A/en not_active Application Discontinuation
- 2009-10-02 EP EP09748874A patent/EP2340371A1/en not_active Withdrawn
- 2009-10-02 US US12/572,440 patent/US8418727B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB884079A (en) * | 1958-03-10 | 1961-12-06 | Joseph Wilson Yowell | Improvements in or relating to corrugated tubing such as is used in bellows |
GB2134984A (en) * | 1983-02-08 | 1984-08-22 | Olaer Ind Sa | Composite pressure vessel |
EP0266971A2 (en) * | 1986-10-31 | 1988-05-11 | Ecodyne Corporation | Pressure vessel |
US6478051B1 (en) * | 1998-11-25 | 2002-11-12 | Continental Teves Ag & Co., Ohg | Pressure means storage device |
US6527012B1 (en) * | 1999-05-29 | 2003-03-04 | Hydac Technology Gmbh | Hydropneumatic pressure accumulator |
DE10142038A1 (en) * | 2001-02-23 | 2002-09-05 | Continental Teves Ag & Co Ohg | Pressure medium store, for an electro-hydraulic vehicle brake system, has bellows within a housing to give separated pressure zones in an inexpensive structure |
JP2005095983A (en) * | 2003-09-05 | 2005-04-14 | Nsk Ltd | Bellows pipe, manufacturing method therefor, and die |
DE10347884B3 (en) * | 2003-10-10 | 2005-06-02 | Reflex Winkelmann Gmbh & Co. Kg | Tank for hydraulic system has bellows-type one-piece container plugged into body and sealed to it |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013026521A1 (en) * | 2011-08-19 | 2013-02-28 | Hydac Technology Gmbh | Pressure vessel |
CN103649552A (en) * | 2011-08-19 | 2014-03-19 | 贺德克技术有限公司 | Pressure vessel |
US9133860B2 (en) | 2011-08-19 | 2015-09-15 | Hydac Technology Gmbh | Pressure vessel |
WO2017142534A1 (en) * | 2016-02-17 | 2017-08-24 | Borgwarner Inc. | Stop/start accumulator design |
DE102021005656A1 (en) | 2021-11-15 | 2023-05-17 | Hydac Technology Gmbh | bellows accumulator |
Also Published As
Publication number | Publication date |
---|---|
KR20110065551A (en) | 2011-06-15 |
CA2747071A1 (en) | 2010-04-08 |
CN102227564A (en) | 2011-10-26 |
US8418727B2 (en) | 2013-04-16 |
CN102227564B (en) | 2015-08-19 |
US20100084033A1 (en) | 2010-04-08 |
EP2340371A1 (en) | 2011-07-06 |
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