CN109687623A - A kind of insulated end cover of wind-guiding - Google Patents
A kind of insulated end cover of wind-guiding Download PDFInfo
- Publication number
- CN109687623A CN109687623A CN201811497243.5A CN201811497243A CN109687623A CN 109687623 A CN109687623 A CN 109687623A CN 201811497243 A CN201811497243 A CN 201811497243A CN 109687623 A CN109687623 A CN 109687623A
- Authority
- CN
- China
- Prior art keywords
- end cap
- ring
- insulated
- wind
- cap ontology
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
Abstract
The present invention relates to direct-drive permanent-magnetism trailer system field, specially a kind of insulated end cover of wind-guiding.Solve due to motor size space is small, rotor seal, forced ventilation but ventilation condition is poor, output torque greatly, canned rotor cause a series of problems, such as bearing temperature rise is big, bearing galvanic corrosion caused by shaft current.The end cap includes the end cap ontology for being provided with centre bore and the bearing chamber for being located at end cap body central hole；End cap ontology medial surface is equipped with axially extended and is coupled the cantilever ring type sealing ring with canned rotor with stator teeth；Cantilever ring type sealing ring and end cover body constitute V-type wind-guiding ring structure；It is connected between bearing chamber and end cap ontology using insulated enclosure mode.This end cap is particularly suitable for stator forced ventilation, rotor seal, the permanent magnet traction motor for completely cutting off shaft current, and the locomotive direct-drive permanent-magnetism traction electric machine that the air pressure air flow that high, user provides especially for cooling cooling requirements is lower, rotor radiating condition is poor, bearing temperature rise is limited is more suitable for.
Description
Technical field
The present invention relates to direct-drive permanent-magnetism trailer system field, specially a kind of insulated end cover of wind-guiding.
Background technique
It is as lesser in the change of car body as possible with the further investigation of locomotive traction field direct-drive permanent-magnetism trailer system
In the case of guarantee that original forced-air systems can be applied, need to design and develop be applicable in forced ventilation direct-drive permanent-magnetism electricity
Machine, using the design structure of stator forced ventilation, rotor seal.In locomotive traction field, in order to reduce shaft current to bearing
Galvanic corrosion generallys use is dielectrically separated from, while to guarantee that airflow pressure evenly distributing motor up and down, improve motor radiating efficiency,
Balance motor temperature rise needs to design a kind of insulated end cover with sealing, wind effect.
But influenced at present by gauge, locomotive wheel diameter, motor outer dimension and weight are limited, user's air feed is limited
In the case where, it should guarantee the power output of motor, reasonable distribution air pressure air flow reduces the temperature rise of motor, prevents bearing galvanic corrosion again.
Traditional mode is unable to complete the above design condition, and requiring the factors such as increase to make in power output increase, overload in addition, the motor feels hot
Problem also protrudes, and canned rotor can make motor bearings temperature rise become larger, and design becomes increasingly difficult.
The prior art related to the present invention
1, existing end cap technical solution is as shown in Fig. 5, Fig. 6, Fig. 7, and its characteristics are as follows:
A) existing motor end cap structure is simpler, generally uses cast aluminium, cast steel or welded-steel plate construction.It is generally all provided on end cap
There are the structures such as oil filler point, disengaging air holes.End cap and base seam allowance cooperate, and inside setting bearing chamber, (cast aluminum construction bearing with end cover room is general
It is located on outer bearing cover).Inside cap, end cap, outer bearing cover are connected by screw bolts mode and are assembled.
B) existing electric motor end cap is equipped with air inlet and air outlet in air cooling structure, and cooling wind enters electricity from air inlet
Have the function that cooling, heat dissipation from other end end cap air outlet outflow motor after stator and rotor inside machine.
C) existing electric motor end cap may be designed to all-sealed structure in water-cooling structure, and cooling water is by the water on base
Motor heat is taken away in road, has the function that cooling, heat dissipation.
2, the shortcomings that prior art:
A. existing motor end cap structure is single and simple, is generally provided only with the basic structures such as oil filler point, oil leak hole, and function is less,
Its space can not be maximally utilized.
B. existing motor end cap structure, which lacks, is designed bearing portion cooling, so that motor bearings temperature rise is higher, leads
The design of electrical motor difficulty under some specific operations and temperature increase requirement is caused to increase.
C. existing motor end cap structure use is limited by operating condition, and it is asynchronous generally to apply to water-cooling structure motor, air-cooled structure
In motor.And in rail traffic permanent magnetism field, air cooling way full-enclosed structure is generally used, existing end cover structure is no longer suitable
With.
D. existing electric motor end cap is generally whole does not have insulation effect；Insulating end lid aggravates end cap using cast steel material
Quality is unfavorable for the loss of weight of motor.
Summary of the invention
Present invention mainly solves since motor size space is small, rotor seal, forced ventilation but ventilation condition is poor, power output
Square is big, canned rotor causes a series of problems, such as bearing temperature rise is big, bearing galvanic corrosion caused by shaft current.
Realization that the present invention adopts the following technical solutions: a kind of insulated end cover of wind-guiding, the end including being provided with centre bore
Lid ontology and be located at end cap body central hole and be equipped with oil filler point bearing chamber；End cap ontology medial surface be equipped with it is axially extended and
The cantilever ring type sealing ring with canned rotor is coupled with stator teeth；Cantilever ring type sealing ring and end cover body are constituted
V-type wind-guiding ring structure；It is connected between bearing chamber and end cap ontology using insulated enclosure mode.
Permanent magnet traction motor of the wind-guiding insulated end cover of the present invention for stator forced ventilation, rotor seal, end cap
It is coupled with base seam allowance, while the sealing ring that end cap stretches out is coupled with stator teeth, is used for canned rotor.V-type is led
A part of wind can be entered stator ventilating duct by vane structure, and another part goes downstream, and not only reduced downward windage but also increased
Downward wind path makes more wind enter motor lower portion, and wind pressure distribution is more reasonable, uses before bearing chamber and end cap ontology
Insulated enclosure connection, can effectively prevent climbing electricity.
Further, the cantilever ring type sealing ring by end cap ontology close to centre bore position along with it is axially inclined
Angle extends, and forms flaring structure, then along axial horizontal extension, one end and the stator teeth of horizontal component are coupled；It is described
Flaring structure and end cover body collectively form V-type wind-guiding ring structure.
The V-structure facilitates reasonable distribution wind pressure, and wind is more led to inside motor, motor temperature is effectively reduced
Degree.
Further, reinforcing rib structure is equipped on the inside of cantilevered sealing ring.
Reinforcing rib is conducive to improve the intensity of sealing ring, improves service life, cantilevered ring when can reduce motor operation
The vibration of V-shaped ring enhances sealing effect.
Further, bearing chamber outer rim towards the end face border outside motor be radially in raised structures, on raised structures
It is furnished with the screw hole being horizontally orientated to, end cap ontology is also evenly equipped with the spiral shell being horizontally orientated to close to the centre bore that partially surrounds of center bore inner wall
Hole；The bearing chamber outer rim is docked with end cap body central hole inner wall and the raised structures of bearing chamber are stuck in end cap outer body,
The screw hole of bearing chamber raised structures and the screw hole on end cap ontology correspond；Screw hole on end cap ontology and bearing chamber is set
There is bolt；The screw hole bore of end cap ontology is divided into two parts, close to the screw hole internal diameter of raised structures and the screw hole mouth of raised structures
Diameter is consistent, and another part bore becomes smaller；Bolt is arranged with positioned at raised structures and the bigbore threaded bore portion of end cap ontology
Insulation tube is arranged with big " O " type insulated ring on insulation tube；The position that end cap ontology is docked with bearing chamber is filled with annular insulation
Layer.The insulation and sealing structure can effectively prevent climbing electricity, inhibit the generation of shaft current.
Bearing chamber is made of forged steel, and end cap ontology is made of cast aluminium.
The end cap is particularly suitable for stator forced ventilation, rotor seal, the permanent magnetism for completely cutting off shaft current because of the reasonability of its structure
Traction electric machine, the air pressure air flow that high, user provides especially for cooling cooling requirements is lower, rotor radiating condition is poor, bearing temperature
Limited, the locomotive direct-drive permanent-magnetism traction electric machine without large scale insulation bearing is risen to be more suitable for.
Technical solution of the present invention bring beneficial effect
1, the implementation of the present invention program directly drives traction electric machine field for locomotive and provides a kind of novel closed-type wind-guiding insulated end cover
Structure.The structure integrates support installation and stator is matched and canned rotor, wind-guiding, loss of weight, inhibition shaft current, structural strength
The advantages that high, can be widely used in locomotive and directly drive traction electric machine field, cannot especially mention in the more demanding, user to vehicle base space
For greater pressure, without large scale insulation bearing in the case where advantage it is significant.
2, the innovative design of the present invention program is that wind-guiding, sealing, insulated combination is integral, by wind when focusing on motor ventilation
Amount is more assigned to motor lower portion.Not only meet end cover structure intensity, inhibit shaft current, the design requirement of forced ventilation, and
And air guide structure, windage, allocation of the amount of air are more reasonable.Keep motor volume smaller, quality is lighter, reliability is higher；It can also save
Bearing buying expenses, playing reduces cost purpose.
Detailed description of the invention
Structural schematic diagram after Fig. 1 end cap of the present invention and base assembling.
Fig. 2 end cover structure schematic diagram of the present invention.
Fig. 3 end cap air guide structure schematic diagram (cross section) of the present invention.
Fig. 4 end cap air guide structure schematic diagram (vertical section) of the present invention.
The existing electric motor end cap of Fig. 5 and mounting structure.
The end cover structure of the existing motor air cooling system of Fig. 6.
The end cover structure of the existing motor water cooling system of Fig. 7.
1- out frame, 2- winding, 3- end cap, 4- internal sealed ring, 5- bearing, 6- shaft, 7- rotor core, 8- end cap sheet
Body, 9- annular shelves ring, big " O " the type insulated ring of 10-, 11- insulation tube, small " O " the type insulated ring of 12-, 13- bolt, the insulation of 14- annular
Layer, 15- sealant, 16- bearing chamber, 17- air inlet, 18- air outlet, 19- outer bearing cover, 20- inside cap, 21- base,
22- water channel, 23- cantilever ring type sealing ring, 24- reinforcing rib, the labyrinth 25- oil sealing.
Specific embodiment
It is equipped annular shelves ring 9 on the inside of end cap ontology 8, is provided with and the screw hole phase on end cap ontology 8 on the annular shelves ring 9
Corresponding screw hole, bolt protrude into one end of 8 inside of end cap ontology while protruding into the screw hole of annular shelves ring 9；Annular insulating layer 14 is not
Sealant 15 is partially coated with by what 8 center bore inner wall of end cap ontology and annular shelves ring 9 covered.
Big " O " the type insulated ring 10 is located at raised structures and docks place with end cap ontology；" O " insulated ring 10 is being located at absolutely greatly
Outside at the 16 protrusion docking of acies lid 8 and bearing chamber is coated with sealant 15, and insulation tube 11 is being located on the outside of raised structures
End and nut between go back fixing sleeve equipped with small " O " type insulated ring 12.
Bearing chamber 16 is equipped with oil filler point.
16 inner wall of bearing chamber is equipped with the labyrinth oil sealing 25 cooperated with rotor internal sealed ring towards the side border inside motor.
Bearing chamber 16 is made of forged steel, and end cap ontology 8 is made of cast aluminium.
It is illustrated below in conjunction with attached drawing.
1, this end cap is used in rail transit locomotive and directly drives traction electric machine field, and assembling structure is as shown in Figure 1.End cap passes through
Seam allowance is fixed on base, while the axially extended cantilever ring type sealing ring of end cap and stator core cooperate and play rotor seal
Come.Internal sealed ring labyrinth on end cap and rotor cooperates.
2, it is provided with uniformly distributed reinforcing rib on the inside of the axially extended cantilever ring type sealing ring of this end cap, improves end cap
Integral strength, and when can reduce motor operation cantilever ring type sealing ring vibration, enhance sealing effect.
3, this end cap is closed, wind-guiding, forced ventilation, insulation structure (see figure 2).By cast-aluminum end cover body, forged steel shelves
Ring (annular shelves ring), " O " type insulated ring, insulation tube, bolt, annular insulating layer, sealant, forged steel bearing chamber composition.
4, this end cover structure is conducive to reduce windage, and wind effect is good (see in Fig. 3,4).Wind enters end cap from top, passes through
" V " type air guide ring, a part enter stator ventilating duct, a part and go downstream, not only reduced downward windage but also increase to
Under wind path, so that more wind is entered motor lower portion.
Specific implementation process
Complete edition end cap is closed, wind-guiding, forced ventilation, insulation structure (see figure 2).By cast-aluminum end cover body, forged steel shelves ring,
" O " type insulated ring, insulation tube, bolt, annular insulating layer, sealant, forged steel bearing chamber composition.
End cap ontology is cast by cast aluminium, first processes bearing chamber, and insulating layer is fixed on bearing chamber peripheral groove
It is interior.Insulating layer is dried into post-processing, big " O " type sealing ring is inserted in bearing chamber and the assembling of end cap ontology；Annular shelves ring set is entered
Bearing chamber is connected bearing chamber, big " O " type seal ring set, end cap ontology with bolt；At bolt head, big " O " type sealing ring
It is sealed on the outside of protruding parts, insulation tube with sealant, prevents from climbing electricity.Bearing position, end cap seam allowance equally accurate are required after installation high
Position be machined out.
Key problem in technology point of the invention:
Entire end cap ventilation wind path is reasonable, compact-sized.Cast-aluminum end cover and forged steel bearing chamber with special ventilation structure assemble
It is integrated, achievees the purpose that canned rotor, the wind-guiding that keeps out the wind, inhibits shaft current, and realize lightweight.
Protection point of the invention:
The novel end cover 1. a kind of high hermetically sealed wind-guiding cast aluminium of integrated level insulate.Novel end cover collection canned rotor, the wind-guiding that keeps out the wind, axis
Three functions of insulation are held in one, while additionally using forged steel bearing chamber and cast-aluminum end cover fit structure.
2. cover internal " V " type wind-guiding ring structure reduces wind path windage for increasing wind-guiding area.
3. cast-aluminum end cover and forged steel bearing chamber Combined insulating end cap, meet intensity, insulating requirements, and realize lightweight.
4. being axially provided with cantilever ring type sealing ring on end cap, it is used for canned rotor, foreign matter is avoided to enter internal rotor
It is adsorbed in p-m rotor surface.
5. cantilevered sealing ring interior design has reinforcing rib structure, for increasing end cap intensity, reduce vibration.
Claims (10)
1. a kind of insulated end cover of wind-guiding, including being provided with the end cap ontology (8) of centre bore and being located at end cap ontology (8) centre bore
Bearing chamber (16)；It is characterized in that, end cap ontology (8) medial surface is equipped with axially extended and is coupled with stator teeth with close
Seal the cantilever ring type sealing ring (23) of rotor；Cantilever ring type sealing ring (23) and end cover body (8) constitute V-type air guide ring
Structure；It is connect between bearing chamber (16) and end cap ontology (8) using insulated enclosure mode.
2. a kind of insulated end cover of wind-guiding as described in claim 1, which is characterized in that the cantilever ring type sealing ring (23)
Extended close to the position of centre bore along with axially inclined angle by end cap ontology (8), forms flaring structure, then along axial level
Extend, one end and the stator teeth of horizontal component are coupled；The flaring structure collectively forms V-type with end cover body (8) and leads
Vane structure.
3. a kind of insulated end cover of wind-guiding as claimed in claim 2, which is characterized in that on the inside of cantilever ring type sealing ring (23)
Equipped with reinforcing rib structure (24).
4. such as a kind of described in any item insulated end covers of wind-guiding of claim 1 ~ 3, which is characterized in that bearing chamber (16) outer rim court
Part border to outside motor is radially in raised structures, and the screw hole being horizontally orientated to, end cap ontology (8) are evenly equipped on raised structures
The centre bore that partially surrounds close to center bore inner wall is also evenly equipped with the screw hole being horizontally orientated to；Bearing chamber (16) outer rim and end cap
The raised structures of the docking of ontology (8) center bore inner wall and bearing chamber (16) are stuck on the outside of end cap ontology (8), bearing chamber (16) protrusion
The screw hole of structure and the screw hole on end cap ontology (8) correspond；Screw hole on end cap ontology (8) and bearing chamber (16) is set
There is bolt；The screw hole bore of end cap ontology (8) is divided into two parts, close to the screw hole internal diameter of raised structures and the screw hole of raised structures
Bore is consistent, and another part bore becomes smaller；Bolt is being located at raised structures and the bigbore threaded bore portion set of end cap ontology (8)
Equipped with insulation tube (11), big " O " type insulated ring (10) is arranged on insulation tube (11)；End cap ontology (8) and bearing chamber (16) are right
The position connect is filled with annular insulating layer (14).
5. a kind of insulated end cover of wind-guiding as claimed in claim 4, which is characterized in that be equipped with ring on the inside of end cap ontology (8)
Shape shelves ring (9) is provided with screw hole corresponding with the screw hole on end cap ontology (8) on annular shelves ring (9), and bolt protrudes into end cap
The screw hole of annular shelves ring (9) is protruded into one end on the inside of ontology (8) simultaneously；Annular insulating layer (14) is not by end cap ontology (8) center
What hole inner wall and annular shelves ring (9) covered is partially coated with sealant (15).
6. a kind of insulated end cover of wind-guiding as claimed in claim 4, which is characterized in that described big " O " type insulated ring (10) position
Place is docked with end cap ontology (8) in raised structures；" O " insulated ring (10) is prominent positioned at insulated end cover (8) and bearing chamber (16) greatly
It plays the outside at the docking of part to be coated with sealant (15), insulation tube (11) is between the end and nut being located on the outside of raised structures
Also fixing sleeve is equipped with small " O " type insulated ring (12).
7. such as a kind of described in any item insulated end covers of wind-guiding of claim 1 ~ 3, which is characterized in that bearing chamber (16) is equipped with
Oil filler point.
8. such as a kind of described in any item insulated end covers of wind-guiding of claim 1 ~ 3, which is characterized in that bearing chamber (16) inner wall court
The labyrinth oil sealing (25) cooperated with rotor internal sealed ring (4) is equipped with to the side border inside motor.
9. such as a kind of described in any item insulated end covers of wind-guiding of claim 1 ~ 3, which is characterized in that bearing chamber (16) is using forging
Steel is made, and end cap ontology (8) is made of cast aluminium.
10. a kind of insulated end cover of wind-guiding as claimed in claim 4, which is characterized in that bearing chamber (16) is made of forged steel,
End cap ontology (8) is made of cast aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497243.5A CN109687623A (en) | 2018-12-07 | 2018-12-07 | A kind of insulated end cover of wind-guiding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497243.5A CN109687623A (en) | 2018-12-07 | 2018-12-07 | A kind of insulated end cover of wind-guiding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109687623A true CN109687623A (en) | 2019-04-26 |
Family
ID=66187147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811497243.5A Pending CN109687623A (en) | 2018-12-07 | 2018-12-07 | A kind of insulated end cover of wind-guiding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109687623A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114499012A (en) * | 2021-12-30 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Insulating end cover structure suitable for offshore wind driven generator |
| CN114678996A (en) * | 2022-03-17 | 2022-06-28 | 中车永济电机有限公司 | Ventilation structure of fully-closed motor |
| EP4148959A1 (en) * | 2021-09-14 | 2023-03-15 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Rotating electrical machine |
| CN115940479A (en) * | 2023-03-15 | 2023-04-07 | 江苏东成工具科技有限公司 | Motor sealing device and electric tool thereof |
| EP4201803A1 (en) * | 2021-12-22 | 2023-06-28 | Torqeedo GmbH | Boat drive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607065A (en) * | 2013-11-25 | 2014-02-26 | 南车株洲电机有限公司 | Bearing insulation device, manufacturing method of bearing insulation device and variable frequency motor |
| CN205212604U (en) * | 2015-12-18 | 2016-05-04 | 永济市众鑫电机配件制造有限公司 | Novel insulation system of insulating end cover of aerogenerator |
| CN105591497A (en) * | 2016-03-23 | 2016-05-18 | 中车永济电机有限公司 | Independent stator ventilating and cooling type permanent magnet motor |
| CN106026501A (en) * | 2016-08-13 | 2016-10-12 | 中车永济电机有限公司 | Novel motor end cover of full-closed structure |
| CN106487125A (en) * | 2016-11-25 | 2017-03-08 | 中车永济电机有限公司 | Locomotive direct-drive permanent-magnetism traction motor |
-
2018
- 2018-12-07 CN CN201811497243.5A patent/CN109687623A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607065A (en) * | 2013-11-25 | 2014-02-26 | 南车株洲电机有限公司 | Bearing insulation device, manufacturing method of bearing insulation device and variable frequency motor |
| CN205212604U (en) * | 2015-12-18 | 2016-05-04 | 永济市众鑫电机配件制造有限公司 | Novel insulation system of insulating end cover of aerogenerator |
| CN105591497A (en) * | 2016-03-23 | 2016-05-18 | 中车永济电机有限公司 | Independent stator ventilating and cooling type permanent magnet motor |
| CN106026501A (en) * | 2016-08-13 | 2016-10-12 | 中车永济电机有限公司 | Novel motor end cover of full-closed structure |
| CN106487125A (en) * | 2016-11-25 | 2017-03-08 | 中车永济电机有限公司 | Locomotive direct-drive permanent-magnetism traction motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4148959A1 (en) * | 2021-09-14 | 2023-03-15 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Rotating electrical machine |
| EP4201803A1 (en) * | 2021-12-22 | 2023-06-28 | Torqeedo GmbH | Boat drive |
| CN114499012A (en) * | 2021-12-30 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Insulating end cover structure suitable for offshore wind driven generator |
| CN114678996A (en) * | 2022-03-17 | 2022-06-28 | 中车永济电机有限公司 | Ventilation structure of fully-closed motor |
| CN114678996B (en) * | 2022-03-17 | 2023-12-19 | 中车永济电机有限公司 | Full-closed motor ventilation structure |
| CN115940479A (en) * | 2023-03-15 | 2023-04-07 | 江苏东成工具科技有限公司 | Motor sealing device and electric tool thereof |
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Application publication date: 20190426 |