EP2820291B1 - Soupape de dosage de fluide - Google Patents

Soupape de dosage de fluide Download PDF

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Publication number
EP2820291B1
EP2820291B1 EP13701450.2A EP13701450A EP2820291B1 EP 2820291 B1 EP2820291 B1 EP 2820291B1 EP 13701450 A EP13701450 A EP 13701450A EP 2820291 B1 EP2820291 B1 EP 2820291B1
Authority
EP
European Patent Office
Prior art keywords
valve
pot
piston
cap
coupler
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.)
Active
Application number
EP13701450.2A
Other languages
German (de)
English (en)
Other versions
EP2820291A1 (fr
Inventor
Dietmar Schmieder
Thomas Koch
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2820291A1 publication Critical patent/EP2820291A1/fr
Application granted granted Critical
Publication of EP2820291B1 publication Critical patent/EP2820291B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/167—Means for compensating clearance or thermal expansion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. for compensating clearance or thermal expansion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • F02M2200/707—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for avoiding fuel contact with actuators, e.g. isolating actuators by using bellows or diaphragms

Definitions

  • the invention is based on a valve for metering fluid according to the preamble of claim 1, wherein the standing for a flowing or flowing medium superordinate term fluid is used in accordance with the fluid flow theory for gases and liquids.
  • a known fuel injection valve ( DE 10 2004 002 134 A1 ) has a hydraulic coupler, which is arranged in a received in a valve housing valve assembly consisting of an injection opening controlling valve needle and the valve needle actuated piezoelectric or magnetostrictive actuator, and is supported non-positively via one gimbal bearing on the valve needle and actuator.
  • the hydraulic coupler is used to compensate for differences in length, resulting from temperature changes due to different expansions of valve housing or valve needle and actuator, so that no gap can form between the valve needle and actuator and is always guaranteed that the full stroke of the actuator 1: 1 on the Valve needle is transferred.
  • the hydraulic coupler has a housing pot with pot bottom, pot casing and pot opening and a piston axially displaceably guided in the housing pot, wherein between piston and bottom of the pot a liquid-filled coupler gap and between the piston and pot shell an annular gap is present.
  • An annular first membrane is fixed with its outer edge of the membrane on the pot shell and with its inner edge of the membrane on the piston and seals in the pot opening the annular gap between the pot shell and piston to include a first fluid-filled expansion chamber.
  • One on the piston arranged on the opposite side of the pot bottom second diaphragm includes, together with the housing pot a liquid-filled second compensation chamber, which is on the one hand via a throttle bore with the coupler gap and on the other hand via an axially extending through the piston connecting channel with the first compensation chamber in combination.
  • the metering valve according to the invention with the features of claim 1 has the advantage that the cup wall of the membrane which at least partially covers the pot wall can deform so strongly under pressure due to its elastic deformation areas that the compensation space enclosed between the membrane and the housing pot has a sufficiently high volume has to absorb the ejected under pressure load of the piston from the coupler gap coupler fluid.
  • the pressure force generated by the elastically deformed cap jacket of the membrane is sufficiently high to push back the volume of liquid stored in the compensation chamber via the annular gap into the coupler gap and to increase the coupler gap again.
  • the elastic deformation regions of circumferentially successive, radially inwardly directed and axially extending indentations are formed, whereby the elastic deformation regions can be realized with the required large compensation volume in production technology simple manner. Due to the existing by the elastic deformation regions in the cap jacket larger equalizing volume between the membrane and housing pot can thus compared to the coupler described in the known fuel injection valve on a usually made of steel second membrane with a second compensation space between the pot bottom and second membrane are omitted, which means a significant reduction in manufacturing costs for the metering valve. The elimination of a second membrane on the bottom of the pot pot also opens up more design options for technical improvement and simplification of the valve.
  • the filling of the coupler gap with liquid e.g. Hydraulic oil
  • liquid e.g. Hydraulic oil
  • the filling opening can be reliably closed after filling the Kopplerspalts.
  • a gimbal bearing of the coupler between a valve assembly and a housing part or between two components of the valve assembly can be made directly on the pot bottom of the housing pot, which significantly simplifies the constructive and manufacturing execution of the storage.
  • the housing pot is accommodated in a frontal cavity in a valve housing final fitting and supported on a formed between the bottom of the pot and bottom of the recess gimbal bearing on the connector, while the piston is rigidly connected to the valve assembly.
  • the housing pot is formed by a between the bottom of the pot and a component forming an actuator formed first gimbal bearing on the actuator and the piston via a second gimbal bearing supported on a valve member forming the other component.
  • the piston is supported via a gimbal bearing on the valve assembly.
  • valve for metering fluid is used for example as an injection valve for injecting fuel in a fuel injection system of internal combustion engines.
  • the valve has a valve assembly that senses the fluid and a hydraulic coupler 11 associated with the valve assembly.
  • Valve assembly and hydraulic coupler 11 are received in a valve housing 12 which is closed at one end face with a connecting piece 13 and at the other end face with a valve body 14 each fluid-tight.
  • the connecting piece 13 is provided with a feed 15 for the fluid and the valve body 14 with an orifice 16 for the fluid.
  • a hollow cylindrical flow channel 17 is guided from the inlet 15 to the orifice 16 and connected via at least one bore 13 introduced in the connection piece 13 with the inlet 15 and via a radial bore 19 inserted into the valve body 14 with a valve chamber 20 upstream of the orifice 16.
  • the flow channel 17 is bounded on the outside by the valve housing 132 and on the inside by a sleeve 21, which is fixed in fluid-tight manner on the one hand to the connecting piece 13 and on the other hand to the valve body 14.
  • the valve assembly has a valve needle 22 for controlling the orifice 16 and a piezoelectric or magnetostrictive actuator 23 for confirming the valve needle 22.
  • valve needle 22 To open and close the orifice 16, the valve needle 22 carries a closing head 24 which is pressed onto a valve seat 26 surrounding the orifice 16 under the action of a valve needle 22 acting on the valve body 14 and supporting valve closing spring 25.
  • the actuator 23 When energized, the actuator 23 moves the valve needle 22 against the force of the valve closing spring 25, so that the closing head 24 lifts outwardly from the valve seat 26 and the orifice 16 releases.
  • the actuator 23 For energizing the actuator 23 is connected via a contact bridge 27 with a molded on the valve housing 12 connector 28. Valve closing spring 25, actuator 23 and hydraulic coupler 11 are received in the sleeve 21.
  • the coupler 11 is frictionally clamped between the valve assembly and the connector 13, wherein the actuator 23 is applied via a gimbal bearing 29 to the Schellerkopfferne end of the valve needle 22 and the coupler 11 via a cardan bearing 45 on the connector 13.
  • the in FIG. 2 shown enlarged hydraulic coupler 11 has a housing pot 30 with pot bottom 301, pot wall 302 and pot opening 303, a Piston 31 and a cap-shaped membrane 32 with cap bottom 321 and cap jacket 322 on.
  • the piston 31 is guided axially displaceably in the housing pot 30 and bounded to the bottom of the pot 301 with a liquid, eg hydraulic oil, filled coupler gap 33 and the pot wall 302 an annular gap 34.
  • Coupler fluid As hydraulic oil, via an existing in the pot bottom 301 of the housing pot 30 filling opening 36, which is designed as an axial stepped bore, the bore portion opens with the smaller diameter in the coupler gap 33 and the bore portion with the larger diameter for receiving a sealing plug 37 is used. How out FIG.
  • the cap-shaped membrane 32 is shown enlarged in side view, end view and section.
  • the cap jacket 322 is not formed smooth-surfaced but provided with elastic deformation areas, which are realized by circumferentially successive, radially inwardly directed and axially extending indentations 39.
  • the membrane 32 as usual made of steel, the indentations 39 are embossed in the cap jacket 322.
  • the membrane 32 may also be made of an elastomer, wherein the indentations 39 are molded in during manufacture.
  • the cap base 321 of the membrane 32 has a central opening 40 and a the opening 40 enclosing, projecting into the cap interior, funnel-shaped bottom portion 41 (FIG. FIG. 3 and 4 ).
  • front side of the piston 31 of the funnel-shaped bottom portion 41 dives into a piston in the 31st formed central recess 42 a ( FIG. 2 ) And is firmly connected by a pressed into the recess 42 bolt 43 with the piston 31.
  • the bottom region 41 can also be welded to the piston 31 in the recess 42.
  • the housing pot 20 is received with clearance in a present in the connector 13, the frontally open cavity 44 and is supported on the gimbal bearing 29, which is formed between the bottom of the pot 301 and cavity floor 441, on the connector 13.
  • the piston 31 is rigidly connected to the actuator 23, which carries for this purpose an axially projecting pin 231 which is pressed into a front-side recess of the recess 42 protruding bolt 43.
  • the pressure of the piston 31 increases to the coupler gap 33.
  • the increased pressure in the coupler gap 33 causes a displacement of the coupler fluid from the Coupler gap 33 which is inserted over the annular gap 34 in the completed by the membrane 32 compensation chamber 35.
  • the indentations 39 in the cap jacket 322 of the membrane 32 deform so strongly that the liquid displaced from the coupler gap 33 is completely absorbed in the equalization chamber 35.
  • FIG. 6 partially illustrated as a further embodiment valve is so far modified from the valve described above, as the housing pot 30 is integral with the connector 13, so that the pot bottom of the housing pot 30 formed by the connector 13 and the coupler gap 33 of the piston 31 and connector 13 is limited ,
  • the gimbal bearing on the bottom of the pot is eliminated and replaced by a gimbal bearing 46 between pin 231 of the actuator 23 and the piston 31, including the pin 231 with a rounded head dips into the recess 42 in the piston 31 and is frictionally supported there.
  • FIG. 7 partially shown valve is modified in so far as the hydraulic coupler 11 is clamped within the valve assembly, between the valve needle 22 and the actuator 23, frictionally.
  • the housing pot 30 is supported on the actuator 23 via a cardan bearing 47 formed between its pot base 301 and the actuator 23 and on the valve needle 22 via a cardan bearing 48 formed between the bolt 43 and the end of the valve needle 22.
  • the arrangement of the hydraulic coupler 11 within the valve assembly according to FIG. 7 has opposite to the arrangement of the hydraulic coupler 11 between the valve assembly and the fitting 13 according to FIG. 1 the advantage that the contact bridge 27 from the connector 28 to the actuator 23 does not have to be performed via the hydraulic coupler 11.
  • the diameter of the hydraulic coupler 11 can be sized much larger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)

Claims (14)

  1. Soupape de dosage de fluide, comprenant un module de soupape dosant le fluide, un coupleur hydraulique (11) associé au module de soupape, qui présente un pot de boîtier (30) avec un fond de pot (301), une paroi de pot (302) et une ouverture de pot (303), un piston (31) guidé de manière déplaçable axialement dans le pot de boîtier (30), délimitant une fente de coupleur (33) remplie de liquide avec le fond de pot (301) et une fente annulaire (34) avec la paroi de pot (302), et une membrane (32) en forme de coiffe avec un fond de coiffe (321) et une enveloppe de coiffe (322), qui recouvre la fente annulaire (34) au niveau de l'ouverture de pot (303) avec le fond de coiffe (321) et qui vient en prise par le dessus avec la paroi de pot (302) du pot de boîtier (30) avec l'enveloppe de coiffe (322) et qui est fixée au piston (31) et à la paroi de pot (302) à chaque fois de manière étanche aux liquides, l'enveloppe de coiffe (322) étant munie de régions de déformation élastiques,
    caractérisée en ce que
    les régions de déformation élastiques sont formées par des renflements vers l'intérieur (39) se suivant dans la direction périphérique, orientés radialement vers l'intérieur et s'étendant axialement.
  2. Soupape selon la revendication 1, caractérisée en ce que la membrane (32) se compose d'acier et les renflements vers l'intérieur (39) sont marqués dans l'enveloppe de coiffe (322).
  3. Soupape selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que l'enveloppe de coiffe (322) s'étend sur plus de la moitié de la longueur axiale de la paroi de pot (302) du pot de boîtier (30).
  4. Soupape selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la fixation de la membrane (32) à la paroi de pot (30) du pot de boîtier (30) s'effectue au niveau ou à proximité du bord d'enveloppe de l'enveloppe de coiffe (322), de préférence par soudage.
  5. Soupape selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le fond de coiffe (321) présente une ouverture centrale (40) et une région de fond (41) en forme d'entonnoir entourant l'ouverture (40), saillant à l'intérieur de la coiffe, et le piston (31) présente un évidement central (42) réalisé du côté frontal, et en ce que la fixation de la membrane (32) au piston (31) s'effectue par fixation de la région de fond (41) dans l'évidement (42), de préférence par soudage.
  6. Soupape selon la revendication 5, caractérisée en ce qu'une ouverture de remplissage (36) pour le liquide dans le fond de pot (301), débouchant dans la fente de coupleur (33), peut être fermée de manière étanche aux liquides.
  7. Soupape selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le module de soupape et le coupleur (11) sont disposés dans un boîtier de soupape (12), et le coupleur (11) est serré par engagement par force entre le module de soupape et une pièce de raccordement (13) se raccordant au boîtier de soupape (12).
  8. Soupape selon la revendication 7, caractérisée en ce que le pot de boîtier (30) est reçu dans une cavité (44) ouverte du côté frontal dans la pièce de raccordement (13) et est supporté sur la pièce de raccordement (13) par le biais d'un palier à cardan (29) réalisé entre le fond de pot (301) et le fond de cavité (441) et le piston (31) est connecté rigidement au module de soupape.
  9. Soupape selon la revendication 8, caractérisée en ce que le module de soupape présente une aiguille de soupape (22) et un actionneur (23) piézo-électrique ou magnétostrictif actionnant l'aiguille de soupape (22) et en ce que l'actionneur (23) s'appuie par le biais d'un palier à cardan (45) contre l'aiguille de soupape (22) et est connecté rigidement au piston (31) du coupleur (11).
  10. Soupape selon la revendication 7, caractérisée en ce que le pot de boîtier (30) est connecté fixement, de préférence d'une seule pièce, à la pièce de raccordement (13).
  11. Soupape selon la revendication 10, caractérisée en ce que le module de soupape présente une aiguille de soupape (22) et un actionneur (23) piézo-électrique ou magnétostrictif actionnant l'aiguille de soupape (22) et en ce que l'actionneur (23) s'appuie par le biais d'un premier palier à cardan (45) contre l'aiguille de soupape (22) et par le biais d'un deuxième palier à cardan (46) contre le piston (31).
  12. Soupape selon la revendication 11, caractérisée en ce que l'actionneur (23) présente un tourillon (231) plongeant dans l'évidement (42) du piston (31) et en ce que le deuxième palier à cardan (46) est réalisé entre le tourillon (231) et l'évidement (42).
  13. Soupape selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le coupleur (11) est serré dans le module de soupape et est supporté par le biais d'un palier à cardan respectif (47, 48) contre un composant du module de soupape.
  14. Soupape selon la revendication 13, caractérisée en ce que le module de soupape présente une aiguille de soupape (22) et un actionneur (23) piézo-électrique ou magnétostrictif actionnant l'aiguille de soupape (22) et en ce que le pot de boîtier (30) est supporté sur l'actionneur (23) par le biais d'un premier palier à cardan (47) réalisé entre le fond de pot (301) et l'actionneur (23), et le piston (31) est supporté sur l'aiguille de soupape (22) par le biais d'un deuxième palier à cardan (48).
EP13701450.2A 2012-02-27 2013-01-25 Soupape de dosage de fluide Active EP2820291B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012202909A DE102012202909A1 (de) 2012-02-27 2012-02-27 Ventil zum Zumessen von Fluid
PCT/EP2013/051458 WO2013127580A1 (fr) 2012-02-27 2013-01-25 Soupape de dosage de fluide

Publications (2)

Publication Number Publication Date
EP2820291A1 EP2820291A1 (fr) 2015-01-07
EP2820291B1 true EP2820291B1 (fr) 2016-11-23

Family

ID=47605541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13701450.2A Active EP2820291B1 (fr) 2012-02-27 2013-01-25 Soupape de dosage de fluide

Country Status (6)

Country Link
US (1) US9470198B2 (fr)
EP (1) EP2820291B1 (fr)
JP (1) JP5933763B2 (fr)
CN (1) CN104136760B (fr)
DE (1) DE102012202909A1 (fr)
WO (1) WO2013127580A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019214751A1 (de) * 2019-09-26 2021-04-01 Mahle International Gmbh Gehäuse

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919313B4 (de) 1999-04-28 2013-12-12 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10148594A1 (de) * 2001-10-02 2003-04-10 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10158789A1 (de) * 2001-11-30 2003-07-10 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10203659A1 (de) 2002-01-30 2003-07-31 Bosch Gmbh Robert Brennstoffeinspritzventil
US7500648B2 (en) * 2003-02-27 2009-03-10 Robert Bosch Gmbh Fuel-injection valve
DE10310499A1 (de) * 2003-03-11 2004-09-23 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10310790A1 (de) * 2003-03-12 2004-09-23 Robert Bosch Gmbh Brennstoffeinspritzventil
EP1526275B1 (fr) * 2003-10-21 2007-01-10 Robert Bosch Gmbh Injecteur de carburant
DE10357454A1 (de) * 2003-12-03 2005-07-07 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102004002134A1 (de) 2004-01-15 2005-08-04 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102004002081A1 (de) * 2004-01-15 2005-08-04 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102004021340A1 (de) * 2004-04-30 2005-11-24 Siemens Ag Düsenbaugruppe und Ventil
DE102004021921A1 (de) * 2004-05-04 2005-12-01 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102007028490A1 (de) * 2007-06-21 2008-12-24 Robert Bosch Gmbh Koppler zur Hubübertragung mittels Scherkraft, Injektor, sowie Verfahren zur Hubübertragung
DE102008054652B4 (de) * 2008-12-15 2018-01-04 Robert Bosch Gmbh Hydraulischer Koppler
DE102009026532A1 (de) * 2009-05-28 2010-12-02 Robert Bosch Gmbh Einspritzventil für ein Fluid
DE102009045009A1 (de) * 2009-09-25 2011-03-31 Robert Bosch Gmbh Einspritzventil für ein Fluid

Also Published As

Publication number Publication date
JP5933763B2 (ja) 2016-06-15
CN104136760B (zh) 2017-04-12
CN104136760A (zh) 2014-11-05
DE102012202909A1 (de) 2013-08-29
EP2820291A1 (fr) 2015-01-07
JP2015507142A (ja) 2015-03-05
US20150014436A1 (en) 2015-01-15
WO2013127580A1 (fr) 2013-09-06
US9470198B2 (en) 2016-10-18

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