EP2739844A1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant

Info

Publication number
EP2739844A1
EP2739844A1 EP12727637.6A EP12727637A EP2739844A1 EP 2739844 A1 EP2739844 A1 EP 2739844A1 EP 12727637 A EP12727637 A EP 12727637A EP 2739844 A1 EP2739844 A1 EP 2739844A1
Authority
EP
European Patent Office
Prior art keywords
region
fuel injection
magnetic
injection valve
valve according
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
Application number
EP12727637.6A
Other languages
German (de)
English (en)
Other versions
EP2739844B1 (fr
Inventor
Johannes Schmid
Juergen Graner
Tilla Haubold
Friedrich Moser
Matthias Schumacher
Andreas Burghardt
Jochen Rager
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 EP2739844A1 publication Critical patent/EP2739844A1/fr
Application granted granted Critical
Publication of EP2739844B1 publication Critical patent/EP2739844B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B22F5/106—Tube or ring forms
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • 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
    • F02M61/166—Selection of particular materials
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F2003/106—Magnetic circuits using combinations of different magnetic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/085—Yoke or polar piece between coil bobbin and armature having a gap, e.g. filled with nonmagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Definitions

  • the present invention relates to a fuel injection valve for injecting fuel.
  • High-pressure injection valves of the prior art generally have a powerful magnetic circuit, which enables the realization of short switching times and a reproducible opening and closing behavior.
  • the fuel injection valve according to the invention with the features of claim 1 has the advantage over that in this case a magnetic separation between the valve sleeve and the inner pole is provided, which is a considerable
  • Fuel injector a coil, an inner pole, a valve sleeve and a
  • Magnetic separating element comprises.
  • valve sleeve and the valve sleeve
  • Magnetic separation element integrally formed as a powder injection-molded component, wherein the valve sleeve forms a magnetic region and the magnetic separation element forms a non-magnetic region, which are materially interconnected.
  • the valve sleeve thus the use of a fuel-resistant, high pressure resistant ferrite material with the lowest possible carbon content and preferably a chromium content of 13% to 17% is possible.
  • a non-magnetic Austen it material can be used for the magnetic separation element, which contributes to a significant reduction of the magnetic losses.
  • the inner pole has a passage opening in the axial direction. This allows a passage of fuel through the inner pole
  • the fuel injection valve have a compact design.
  • the inner pole is formed as a powder injection-molded component and made of a material with high magnetic saturation induction, in particular FeCo with a cobalt content of 17% to 50%.
  • a material with a cobalt content of 48% to 50% can be used, since this material also has the advantage of good fuel resistance.
  • the inner pole is designed as a powder injection-molded component and comprises a first region having a first magnetic saturation induction and a second region having a second region magnetic saturation induction, which is smaller than the first magnetic saturation induction.
  • the first and second regions are connected to one another by material bonding.
  • the first region with the higher magnetic saturation induction which is preferably made of a FeSi material with a silicon content of 1% to 7% or of a FeCo material with a cobalt content of 17% to 50%, here represents the high dynamics safe with short switching times of the fuel injection valve.
  • the use of fuel-resistant, high-pressure-resistant ferrite with a low carbon content and 13% to 17% chromium content is thus possible.
  • valve sleeve, the magnetic separation element and the inner pole are integrally formed as a powder injection-molded component and materially connected to each other.
  • valve sleeve and the inner pole are made of a same material, in particular of X2Cr13MoSi.
  • the second region of the inner pole is made of a fuel-resistant magnetic material, which envelops the inner pole as a fuel-resistant layer and ensures the resistance to the aggressive fuels.
  • the magnetic separation element adjoining the first region of high magnetic saturation induction achieves a reliable magnetic separation with respect to the valve sleeve adjoining thereto, whereby the magnetic losses due to this one-piece component are significantly minimized.
  • the second region forms a jacket region of
  • the end face region in the axial direction has a thickness of 0.5 mm.
  • the end face region forms a stop for a magnet armature.
  • the first region of the inner pole preferably has a circumferential flange region projecting in the radial direction.
  • an upper lid for the fuel injection valve can be integrated in the one-piece powder injection-molded component, which leads to a further reduction in the number of components.
  • the magnetic separation element is a circumferential ring.
  • a fuel-resistant material is provided on an inner jacket portion of the annular magnetic separation element.
  • all corrosion-resistant layers of the entire powder injection-molded component are made of the same material, so that its manufacture is substantially simplified.
  • the magnetic separation element is designed as a magnetic throttle, which has a first and second magnetic connection region, a throttle region and a first and second transition region.
  • the first and second transition regions are arranged in the axial direction between the first and second connection regions, and the throttle region is arranged between the first and second transition regions.
  • the preferably magnetic ferrite material is filled in the throttle region and in the first and second transition regions with non-magnetic austenitic material.
  • Fuel injection valve can be achieved.
  • the first and second transition regions are tapered.
  • the throttle behavior can be adjusted individually depending on the application.
  • the throttle region preferably has an inner and / or outer cylinder region of a magnetic, electrically conductive material.
  • the cylinder region is formed here as a thin ferritic layer.
  • the throttle area has an additional range of non-magnetic Austen it material or ceramic material to increase the strength.
  • a preferred layer thickness of the cylinder region in this case is a maximum of 0.5 mm, in particular 0.2 mm to 0.3 mm, particularly preferably 0.25 mm.
  • the throttle region is made of an electrically non-conductive material.
  • z As a ceramic material, an eddy current loss can be reduced and the dynamics of the fuel injection valve further increased and its switching times are further reduced.
  • Figure 1 is a schematic sectional view of a part of a
  • FIG. 2 shows an enlarged partial sectional view of FIG. 1,
  • FIG. 3 is a sectional view of the valve sleeve and an inner pole according to a second embodiment of the fuel injection valve of FIG. 1;
  • FIG. 4 is a sectional view of the valve sleeve and an inner pole according to a third embodiment of the fuel injection valve of FIG. 1;
  • FIG. 5 is a sectional view of the valve sleeve and an inner pole according to a fourth embodiment of the fuel injection valve of Figure 1,
  • FIG. 6 is a sectional view of the valve sleeve and an inner pole according to a fifth exemplary embodiment of the fuel injection valve of FIG. 1
  • FIG. 7 is a sectional view of the valve sleeve and an inner pole according to a sixth embodiment of the fuel injection valve of FIG. 1, FIG.
  • Figure 8 is a sectional view of a magnetic throttle of
  • Figure 9 is a sectional view of another magnetic throttle of the fuel injection valve according to the invention.
  • Figure 10 is a sectional view of another magnetic throttle of the fuel injection valve according to the invention.
  • Figure 1 and Figure 2 show sectional views of a portion of a
  • Fuel injection valve 1 according to a first embodiment of the
  • a coil 2 an inner pole 3, a valve sleeve 4, a
  • Magnetic separation element 40 and a magnet armature 5 comprises.
  • Magnetic separation element 40 is annularly cylindrical in this case and secured by means of a welded joint 30 at the inner pole 3.
  • Weld 30 may alternatively be provided a solder joint.
  • the inner pole 3 has a central, in an axial direction X-X extending through opening 6.
  • valve sleeve 4 and the magnetic separation element 40 of the first embodiment are formed integrally as a powder injection-molded component 41 and cohesively
  • valve sleeve 4 forms a magnetic region and the magnetic separation element 40 forms a non-magnetic region.
  • the valve sleeve 4 is preferably made of a fuel-resistant
  • Magnetic separation element 40 is preferably a non-magnetic Austen it material, such. As austenite 1.4944, Inconel IN 718, Udimet 630 or PH 15-7, used, which causes a significant reduction in magnetic losses.
  • austenite 1.4944, Inconel IN 718, Udimet 630 or PH 15-7 used, which causes a significant reduction in magnetic losses.
  • a one-piece and inexpensive to produce valve sleeve 4 including the magnetic separation element 40 is provided as a powder injection molded component 41 with reduced magnetic losses and a permanent corrosion resistance against the passed through the passage opening 6 and located on the inner circumference of the valve sleeve 4 fuel.
  • the first embodiment described above is the
  • Pole 3 of the second embodiment of Figure 3 as a powder injection molded component 42 is formed.
  • the inner pole 3 comprises a first region 31 with a first magnetic saturation induction and a second region 32 with a second magnetic saturation induction, which is smaller than the first magnetic saturation induction.
  • the first and second regions 31, 32 are connected to one another in a fluid-like manner.
  • the first region 31 is preferably made of a FeSi material with a silicon content of 1% to 7% or of a FeCo material with a cobalt content of 17% to 50% to achieve a good magnetic efficiency, which provides high dynamics with short
  • the second region 32 is made of fuel-resistant, high-pressure-resistant ferrite material with low
  • the second region 32 forms a cladding region 35 of the through-hole 6 and an end-face region 36, thereby protecting the first region 31 made of non-fuel-resistant material from contact with fuel.
  • the face portion 36 also acts as a wear-resistant stop for the armature 5.
  • the material of the second region 32 is much cheaper than the material used for the first region 31, resulting in a significant reduction of
  • Embodiments are in the third shown in Figure 4
  • valve sleeve 4 the magnetic separation element 40 and the magnetic separation element 40
  • Pole 3 integrally formed as a powder injection molded component 43 and
  • valve sleeve 4 and the inner pole 3 formed entirely from the second region 32 are in this case made of the same material, especially made of X2Cr13MoSi, which has good fuel resistance.
  • the inner pole 3 may also be made of a material having high magnetic saturation induction, such as a FeCo material with a cobalt content of 48% to 50%, which also has fuel resistance and the advantage of high magnetic saturation
  • the magnetic separation element 40 and the inner pole 3 integrally formed as a powder injection-molded component 44 and connected to one another in a material-locking manner.
  • the inner pole 3 is in this case similar to the second embodiment of a first and second region 31, built around 32, so that reference may be made to the above description.
  • valve sleeve 4 the magnetic separation element 40 and the inner pole 3 are integrally formed as a powder injection-molded component 45 and materially connected to each other.
  • the first embodiment described above the first embodiment
  • Region 31 of the inner pole 3 in this case a protruding, circumferential
  • Flange portion 33 which is integrated in the one-piece powder injection-molded component 45 as the upper lid of the fuel injection valve 1. Furthermore, a recess 37 is provided in an end section 38 of the second region 32, thereby avoiding unnecessary material accumulation and preventing the injection molding
  • Valve sleeve 4 the magnetic separation element 40 and the inner pole 3 in one piece as
  • Powder injection-molded component 46 formed and materially connected to each other.
  • the sixth shown in FIG. 1 In contrast to the fourth and fifth embodiments described above, in the sixth shown in FIG. 1
  • Magnetic separation element 40 the fuel-resistant material provided, which is used for the valve sleeve 4 and the second portion 32 of the inner pole 3.
  • a completely closed fuel-resistant protective layer is formed ⁇ the entire inner circumferential surface of the through hole 6 of the powder injection-molded component 46 is reached.
  • Throttle is formed and integrated in the one-piece powder injection molded component. Identical or functionally identical components are designated in the embodiments with the same reference numerals.
  • the magnetic separation elements 40 described in FIGS. 8 to 10 can be used in all of the previously described embodiments.
  • Magnetic separation element 40 in this case as a magnetic throttle with a first and second magnetic connection region 401, 402, a throttle region 405 and a first and second transition region 403, 404 formed.
  • the first and second junction regions 403, 404 are disposed in the axial direction X-X between the first and second terminal regions 401, 402, and the choke region 405 is disposed between the first and second junction regions 403, 404.
  • Transition regions 403, 404 in the direction of the respective connection region 401 or 402 and to an outer circumferential surface 407 of the magnetic separation element 40 is formed to taper.
  • the throttle region 405 has an inner cylinder region 406, which is formed as a thin ferritic layer. To increase the strength of the throttle area 405 and parts of
  • Transition areas 403, 404 filled with non-magnetic Austen it material or ceramic are filled with non-magnetic Austen it material or ceramic.
  • a preferred layer thickness of the cylinder region 406 in this case is a maximum of 0.5 mm, in particular 0.2 mm to 0.3 mm, particularly preferably 0.25 mm.
  • the magnetic separation element 40 shown in FIG. 9 has a throttle region 405 which is formed inversely in the radial direction and tapers in the respective transition regions 403 or 404 to form an inner circumferential surface 408 of the magnetic separation element 40.
  • Magnetic separator 40 of the second embodiment an outer Cylinder area 409 of magnetic, electrically conductive material. To ensure adequate fuel resistance over in the
  • a non-magnetic, preferably additionally eddy current-free ceramic material may be used in the throttling region 405 and in parts of the transitional regions 403, 404 for filling.
  • Transition regions 403, 404 in the axial direction X-X is not tapered.
  • a required for the particular application throttle effect can be selectively adjusted by different shapes or proportions of magnetic and non-magnetic material and / or their distribution in the axial direction X-X of the magnetic separation element 40.
  • one-piece powder injection-molded components for the fuel injection valve according to the invention can be manufactured particularly economically in a single manufacturing process, which is not achievable with conventional manufacturing processes.
  • a significantly improved cost efficiency thereby in particular a significant reduction of the magnetic losses is achieved, whereby the at
  • an increase in the magnetic force in the range of 25% to 35% can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne une soupape d'injection de carburant, comprenant une bobine (2), un pôle intérieur (3), une douille de soupape (4) et un élément de séparation magnétique (40). La douille de soupape (4) et l'élément de séparation magnétique (40) sont réalisés d'un seul tenant sous la forme d'un élément moulé par injection de poudre (41) ; la douille de soupape (4) forme une zone magnétique et l'élément de séparation magnétique (40) une zone non magnétique, les deux zones étant assemblées l'une à l'autre par liaison de matière.
EP12727637.6A 2011-08-03 2012-06-06 Soupape d'injection de carburant Not-in-force EP2739844B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011080355A DE102011080355A1 (de) 2011-08-03 2011-08-03 Kraftstoffeinspritzventil
PCT/EP2012/060700 WO2013017320A1 (fr) 2011-08-03 2012-06-06 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP2739844A1 true EP2739844A1 (fr) 2014-06-11
EP2739844B1 EP2739844B1 (fr) 2015-10-21

Family

ID=46298395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12727637.6A Not-in-force EP2739844B1 (fr) 2011-08-03 2012-06-06 Soupape d'injection de carburant

Country Status (7)

Country Link
US (1) US9394867B2 (fr)
EP (1) EP2739844B1 (fr)
JP (1) JP5931194B2 (fr)
KR (1) KR101980066B1 (fr)
CN (1) CN103732906B (fr)
DE (1) DE102011080355A1 (fr)
WO (1) WO2013017320A1 (fr)

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DE102014209384A1 (de) * 2014-05-16 2015-11-19 Robert Bosch Gmbh Ventil mit einem magnetischen Aktor
DE102017116383A1 (de) 2017-07-20 2019-01-24 Liebherr-Components Deggendorf Gmbh Injektor zum Einspritzen von Krafstoff

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Also Published As

Publication number Publication date
KR101980066B1 (ko) 2019-05-21
US9394867B2 (en) 2016-07-19
KR20140048955A (ko) 2014-04-24
EP2739844B1 (fr) 2015-10-21
DE102011080355A1 (de) 2013-02-07
US20140224902A1 (en) 2014-08-14
JP2014521869A (ja) 2014-08-28
CN103732906A (zh) 2014-04-16
CN103732906B (zh) 2017-09-08
JP5931194B2 (ja) 2016-06-08
WO2013017320A1 (fr) 2013-02-07

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