CN108026979A - The shaft device made of composite fiber-plastic materials - Google Patents
The shaft device made of composite fiber-plastic materials Download PDFInfo
- Publication number
- CN108026979A CN108026979A CN201680053824.2A CN201680053824A CN108026979A CN 108026979 A CN108026979 A CN 108026979A CN 201680053824 A CN201680053824 A CN 201680053824A CN 108026979 A CN108026979 A CN 108026979A
- Authority
- CN
- China
- Prior art keywords
- axle portion
- shaft device
- interior axle
- shaft
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/026—Shafts made of fibre reinforced resin
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/76—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/02—Plastics; Synthetic resins, e.g. rubbers comprising fillers, fibres
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/10—Elastomers; Rubbers
- F16C2208/12—Polyurethan [PU]
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0056—Elastomers
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
Abstract
The present invention relates to a kind of shaft device, with the interior axle portion (1) made of compo composite material and in overlapping regionsSurround the outer axle portion (2) made of compo composite material of the interior axle portion (1).Between interior axle portion (1) and outer axle portion (2), in overlapping regionsFormed junction surface (3), wherein, thermoplastic polyurethane (TPU) layer is provided with the junction surface (3) at least in part.The damping characteristic of the shaft device can be adjusted by the TPU layer.
Description
Technical field
The present invention relates to a kind of shaft device for being used to transmit torque.The shaft device can be particularly used in testing stand.
Background technology
Shaft device is used to transmit torque, and can be used for for example in experimental bench in load device or a driving device (side
Face) between sample, such as internal combustion engine or brake (another aspect) transmit torque flow.
Known to have used a kind of axis connection in 10 2,011 112 708 A1 of DE, its central axis and flange are by fiber-modeling
Material composite material (FKV) is made.
By the way that composite fiber-plastic materials are used for torque transmission, the moment of inertia can be reduced, this can be to whole system
Dynamic characteristic produces favorable influence.But for many applications, axis connection made of composite fiber-plastic materials damps
Deficiency.In these cases, damped to increase, it is necessary to collect extra damping element (such as damper or rubber coupling)
Into into shafting, to reach required damping.
The content of the invention
The present invention task be to provide a kind of shaft device, it is made of composite fiber-plastic materials at least in part, and
It can realize preferable damping.
According to the present invention, this task is achieved by a kind of shaft device of the feature with claim 1.Favourable
Embodiment is understood in the dependent claims.This shaft device particularly may be advantageously used with test bench installation.
Shaft device has interior axle portion, the axle portion in overlapping regions encirclement made of composite fiber-plastic materials (FKV)
The outer axle portion made of composite fiber-plastic materials, and have between interior axle portion and outer axle portion, be formed in overlapping regions
Junction surface, wherein, be provided with thermoplastic polyurethane (TPU) layer at least in part in junction surface.
Therefore, interior axle portion and outer axle portion are mutually overlapped in overlapping regions on certain length, so as to be formed between
Junction surface.The junction surface is designed as cylinder, and can be filled at least in part by TPU.By this construction at junction surface with
And TPU is filled, the damping capacity of whole system can be adjusted.
Thermoplastic polyurethane belongs to thermoplastic elastomer (TPE) (also referred to as elastoplastic).The characteristic of this plastics at room temperature with
Conventional elastomer is suitable, but can be plastically deformed under the conditions of heat supply, so as to show thermoplasticity.Therefore TPU is thermoplastic poly
Urethane based elastomeric.
According to size (the particularly height or thickness at junction surface), the axial length of TPU layer and the TPU materials at junction surface
The difference of the characteristic of itself, can realize the damping capacity of restriction.
Composite fiber-plastic materials can make the weight of shaft device very light.Compared with conventional elastomers, TPU has highly resistance
Intensity is cut, and therefore be especially suitable for damping layer.In addition, junction surface length can be reduced by using TPU, that is, reduce TPU
Layer sets overlapping regions therein.
Outer axle portion can be designed as quill shaft so that interior axle portion easily can place or be inserted at least in part hollow bulb
In point.
Equally, interior axle portion may be designed in quill shaft, on the one hand in order to save weight, on the other hand in order to simple
Ground by FKV manufacture in axle portion.
Composite fiber-plastic materials can for example be interpreted as fibre reinforced plastics or fiber composite plastics.Herein relate to by
The material of reinforcing fiber and plastic matrix composition.The matrix surrounds the fiber combined by adhesive force or cohesiveness with matrix.It is logical
Cross and use fibrous material, composite fiber-plastic materials have the elastic characteristic that direction relies on.
What is be applicable in as fiber is inorganic reinforcing fiber, such as glass fibre, or particularly organic reinforced fiber, such as virtue
Synthetic fibre fiber, carbon fiber, polyester fiber etc..FKV materials are known, thus be will not be discussed further herein.
For shaft device discussed herein, particularly carbon fibre reinforced plastic (CFK) has proved to be suitable.
Joint face between thermoplastic urethane layers and corresponding shaft portion can be at least partially adhesive
Layer.It has been proved that composite fiber-plastic materials (particularly CFK) and the connection of TPU layer are problematic.Can by adhesive
So that TPU layer is permanent and is reliably connected with the FKV materials of shaft portion.It is corresponding to this, it is advantageous to which that TPU layer is at least partly
Ground is by adhesive bonding to FKV shaft portions.
Interior axle portion and outer axle portion can form longitudinal direction interference fit connection.It means that before splicing, outside interior axle portion
Footpath is slightly larger than the internal diameter of outer axle portion.The shrink value of interior axle portion can only be herein one thousandth or 1 percent millimeters.By vertical
To interference fit, interior axle portion and outer axle portion are axially bonded with each other and extrude positioned at middle TPU layer.Thus just produced by interior
The firm connection that axle portion, TPU layer and outer axle portion are formed.
Above two engagement principle can also be combined, i.e., on the one hand bonds TPU layer and on the other hand passes through longitudinal interference
It is connected, to realize specific intensity.
As the replacement of longitudinal direction interference fit connection, laterally interference fit connection is also possible, it can also be with bonding
TPU layer is combined.
Multiple pairings being made of an interior axle portion and an outer axle portion, the outer shaft can be set in a flexible program
Portion is connected with the interior axle portion by thermoplastic urethane layers, wherein, these pairings are set coaxially with each other, and pass through these
Pairing can transmit need to be by the torque of shaft device transmission.Therefore, multiple pairings being made of an interior axle portion and an outer axle portion
It is arranged in mechanical series connection, the torque that need to be transmitted is transmitted in these pairings.Divide in junction surface between interior axle portion and outer axle portion
TPU layer is not provided with it.Here, the axis that some of which shaft portion can be overlapped with two other in corresponding overlapping regions respectively
Part is connected.In this way, an interior axle portion can be connected with two outer axle portions, vice versa.
Two interior axle portions are provided with one embodiment, it is connected with each other by a common outer axle portion, wherein,
TPU layer is provided with junction surface in each between axle portion and outer axle portion.In this way it is possible to pass through construction closely
Realize (total) overlapping regions of the setting TPU layer of a greater amount of TPU or bigger.Since damping capacity is mainly individually determined by TPU layer
It is fixed, just damping value can be realized in wide range by designing accordingly by this way.
By making TPU layer be distributed on multipair shaft portion, it is shorter each overlapping regions can be designed as axial length.By
This makes the manufacture of shaft portion, and especially engagement is simplified.
The axis connection may be advantageously used with the test bench installation of test sample.The test bench installation can have negative
Carry and put or driving device, such as dynamometer, eddy-current brake etc., the device can couple at Coupling point with sample.Sample
Can be motor, brake or whole power assembly.In load device or driving device (one side) and Coupling point (the opposing party
Face) between torque flow in axis connection can be set, the axis connection can have the above-mentioned type shaft device.Particularly, the axis
Device can be with the shaft portion made of FKV, with setting TPU layer therein.
By the size and design of TPU layer, the damping characteristic of axis connection can be adjusted and be adapted to the model of testing stand requirement
In enclosing.
Brief description of the drawings
Below by the example above and other advantages and features that present invention will be described in detail with reference to the accompanying.Wherein：
Fig. 1 shows the sectional view of the shaft device according to the first embodiment；And
Fig. 2 shows the sectional view of the shaft device according to the second embodiment.
Embodiment
Fig. 1 shows the sectional view of a part for shaft device, it is with interior axle portion 1 and outer axle portion 2.
Interior axle portion 1 and outer axle portion 2 are made of composite fiber-plastic materials (FKV).Here, particularly fibre reinforced is moulded
Material (CFK) has proved to be suitable.
Outer axle portion 2 is designed as quill shaft, thus in specific region, i.e., so-called overlapping regionsDuring upper and same design is
The interior axle portion 1 of empty axis overlaps.
Junction surface 3 is formed between interior axle portion 1 and outer axle portion 2, thermoplastic polyurethane (TPU) is provided with the junction surface
Layer 4.In the region shown in Fig. 1, TPU layer 4 extends in the whole length at junction surface 3, that is, in whole overlapping regions
Upper extension.And it is also possible that TPU layer 4 is filled at only a part junction surface 3, or multiple TPU layers axially offset setting each other.
In an illustrated embodiment, junction surface 3 and correspondingly TPU layer 4 is also configured as hollow cylindrical.
Fig. 2 is to show another embodiment, wherein, with the same or similar components of Fig. 1 with identical reference numeral
Represent.
Shaft device shown in Fig. 2 has two interior axle portions, i.e. the interior axle portion 1 of attached drawing left-half and attached drawing right half part
Interior axle portion 1'.Two interior axle portions 1,1' are connected via TPU layer 4,4' with common outer axle portion 2 respectively.In this case, shaft portion
1st, 1', 2 are also made of FKV materials, such as CFK.
As the embodiment in Fig. 1, junction surface is formed between each pair shaft portion 1,1', 2, the junction surface is in Fig. 2
Middle mark is the junction surface shown on the right side of 3 (junction surfaces in figure shown in left side) and 3'(figures axis).
According to the different configuration of this shaft device, it can realize that suitable damping is special by determining the size of TPU layer 4 or 4'
Property.
Due to the high shear strength of TPU, the bonding length between interior axle portion 1 and outer axle portion 2, i.e. overlapping regionsIt can set
Count relatively short, this particularly can be seen that in fig. 2.
Being connected in series for two TPU layers 4,4' shown in Fig. 2 can also further carry out, so as to translate force through multiple TPU
Component or TPU layer conduction.
Due to setting TPU layer 4, in the case of 4', each overlapping regionsIt can be kept as shorter, this just opens attached
The design space added.Further, since shaft portion need not be in longer overlapping regionsUpper engagement, when can simplify manufacture shaft device
Engaging process.
It fact proved, TPU and CFK are difficult to engage each other.Therefore, can be significantly, in each TPU layer 4 and each
Bonding connection is set on the joint face between the shaft portion (interior axle portion 1,1', outer axle portion 2) that need to be connected.
In the second manufacturing step, in addition to bonding and connecting, it can realize that pressure is covered by longitudinal direction interference fit connection
Lid.In this case, can be sharp, interior axle portion 1 has Interference size relative to the internal diameter of outer axle portion 2, thus produces
Corresponding pressure.As the replacement of longitudinal direction interference fit connection, laterally interference fit connection is also possible.
By introducing TPU layer, it can realize the raising of damping and be achieved in the change of the dynamic characteristic of whole system.It is special
It is not that the damping characteristic and torsion stiffness of whole system can be targetedly adjusted.
Claims (9)
1. a kind of shaft device, has
- made of composite fiber-plastic materials interior axle portion (1)；
- in overlapping regionsSurround the outer axle portion (2) made of composite fiber-plastic materials of the interior axle portion (1)；With
And have
- between the interior axle portion (1) and the outer axle portion (2), be formed in the overlapping regionsJunction surface (3)；
Wherein
- it is provided with thermoplastic polyurethane (TPU) layer (4) at least in part in the junction surface (3).
2. shaft device according to claim 1, wherein, the outer axle portion (2) is designed as quill shaft.
3. shaft device according to claim 1 or 2, wherein, the interior axle portion (1) is designed as quill shaft.
4. according to preceding claims any one of them shaft device, wherein, the composite fiber-plastic materials increase from carbon fiber
Strong plastics (CFK), glass fiber compound material, mineral fibres composite material, ceramic fibrous composite material, aramid fiber composite wood
Selected in material, plastic optical fibre composite material, natural-fiber composite material.
5. according to preceding claims any one of them shaft device, wherein, the thermoplastic urethane layers (4) and corresponding institute
The joint face stated between shaft portion (1,2) is at least partially adhesive phase.
6. according to preceding claims any one of them shaft device, wherein, the interior axle portion (1) and the outer axle portion (2) shape
Into longitudinal direction interference fit connection and/or laterally interference fit connection.
7. according to preceding claims any one of them shaft device, wherein,
- it is provided with multiple pairings being made of an interior axle portion (1) and an outer axle portion (2), the outer axle portion and the interior axle
Portion (1) is connected by thermoplastic urethane layers (4)；
- described match is set coaxially with each other；And wherein,
- torque that need to be transmitted by the shaft device can be transmitted by the pairing.
8. according to preceding claims any one of them shaft device, wherein,
- two interior axle portions (1,1') are provided with, it passes through a common outer axle portion (2) and is connected with each other；And wherein,
- each interior axle portion (1,1') is provided with thermoplastic poly ammonia in the junction surface (3,3') between the outer axle portion (2)
Ester layer (4,4').
9. a kind of test bench installation for test sample, has
- load device or driving device；
- Coupling point, the sample can couple at the Coupling point；And have
- in the load device or driving device on the one hand and the Coupling point is as in the torque flow between on the other hand as
The axis connection of setting；Wherein,
- the axis connection has according to preceding claims any one of them shaft device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015115913.9 | 2015-09-21 | ||
| DE102015115913.9A DE102015115913A1 (en) | 2015-09-21 | 2015-09-21 | Shaft device made of a fiber-plastic composite |
| PCT/EP2016/072139 WO2017050684A1 (en) | 2015-09-21 | 2016-09-19 | Shaft device made of a fiber-plastic composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108026979A true CN108026979A (en) | 2018-05-11 |
| CN108026979B CN108026979B (en) | 2019-08-06 |
Family
ID=56940072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680053824.2A Active CN108026979B (en) | 2015-09-21 | 2016-09-19 | The shaft device made of composite fiber-plastic materials |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3353439A1 (en) |
| KR (1) | KR101961075B1 (en) |
| CN (1) | CN108026979B (en) |
| DE (1) | DE102015115913A1 (en) |
| WO (1) | WO2017050684A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102417644B1 (en) * | 2020-06-05 | 2022-07-05 | 김병국 | coupling using carbon fiber and manufacturing method thereof |
| GB2597940B (en) * | 2020-08-10 | 2024-05-01 | Polar Tech Management Group Limited | Drive shaft |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322062A (en) * | 1979-12-26 | 1982-03-30 | Grumman Aerospace Corporation | Torsion spring damper |
| EP0129193A2 (en) * | 1983-06-15 | 1984-12-27 | BASF Aktiengesellschaft | Process for the production of antistatic and/or electrically conductive thermoplastic Polyurethanes and their use |
| DE29720240U1 (en) * | 1997-11-14 | 1998-01-08 | Basf Ag | Torsionally flexible coupling, especially for a cardan shaft |
| DE10225796A1 (en) * | 2002-06-10 | 2003-12-18 | Basf Ag | Round bearing, e.g. for cars and trucks, comprises outer and inner bushes and a cellular polyurethane bearing element which is bonded to one or both bushes with a hot-melt adhesive |
| WO2011042486A1 (en) * | 2009-10-09 | 2011-04-14 | Basf Se | Device for damping and transmitting a torque |
| CN201828398U (en) * | 2010-01-10 | 2011-05-11 | 胜利油田胜利动力机械集团有限公司 | Comprehensive experiment table of hydraulic coupler |
| CN103344446A (en) * | 2013-06-18 | 2013-10-09 | 吉林大学 | Differential type power coupling device performance test bedstand |
| CN204353504U (en) * | 2014-12-17 | 2015-05-27 | 重庆第二机床厂有限责任公司 | A kind of thin-wall part fixture for processing frock |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007057194A1 (en) * | 2007-11-28 | 2009-06-10 | Daimler Ag | Transmission mainshaft or gearbox shaft |
| DE102011076874A1 (en) * | 2011-06-01 | 2012-12-06 | Zf Friedrichshafen Ag | Drive shaft for test rig, particularly brake test rig for testing disk or drum brakes of motor vehicle, comprises damping element for damping torsional vibration, which has sleeve circumferentially surrounding drive shaft |
| DE102011112708B8 (en) | 2011-09-07 | 2015-12-17 | Horiba Europe Gmbh | Test stand device with fiber composite shaft connection |
| DE102013009497A1 (en) * | 2013-06-05 | 2014-12-11 | Daimler Ag | Telescopic drive shaft |
-
2015
- 2015-09-21 DE DE102015115913.9A patent/DE102015115913A1/en active Pending
-
2016
- 2016-09-19 EP EP16766577.7A patent/EP3353439A1/en not_active Withdrawn
- 2016-09-19 CN CN201680053824.2A patent/CN108026979B/en active Active
- 2016-09-19 KR KR1020187007573A patent/KR101961075B1/en active IP Right Grant
- 2016-09-19 WO PCT/EP2016/072139 patent/WO2017050684A1/en active Search and Examination
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322062A (en) * | 1979-12-26 | 1982-03-30 | Grumman Aerospace Corporation | Torsion spring damper |
| EP0129193A2 (en) * | 1983-06-15 | 1984-12-27 | BASF Aktiengesellschaft | Process for the production of antistatic and/or electrically conductive thermoplastic Polyurethanes and their use |
| DE29720240U1 (en) * | 1997-11-14 | 1998-01-08 | Basf Ag | Torsionally flexible coupling, especially for a cardan shaft |
| DE10225796A1 (en) * | 2002-06-10 | 2003-12-18 | Basf Ag | Round bearing, e.g. for cars and trucks, comprises outer and inner bushes and a cellular polyurethane bearing element which is bonded to one or both bushes with a hot-melt adhesive |
| WO2011042486A1 (en) * | 2009-10-09 | 2011-04-14 | Basf Se | Device for damping and transmitting a torque |
| CN201828398U (en) * | 2010-01-10 | 2011-05-11 | 胜利油田胜利动力机械集团有限公司 | Comprehensive experiment table of hydraulic coupler |
| CN103344446A (en) * | 2013-06-18 | 2013-10-09 | 吉林大学 | Differential type power coupling device performance test bedstand |
| CN204353504U (en) * | 2014-12-17 | 2015-05-27 | 重庆第二机床厂有限责任公司 | A kind of thin-wall part fixture for processing frock |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180044930A (en) | 2018-05-03 |
| EP3353439A1 (en) | 2018-08-01 |
| CN108026979B (en) | 2019-08-06 |
| KR101961075B1 (en) | 2019-03-21 |
| DE102015115913A1 (en) | 2017-03-23 |
| WO2017050684A1 (en) | 2017-03-30 |
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| GR01 | Patent grant |