CN108397342A - A kind of small-sized tidal-energy electric generator set - Google Patents
A kind of small-sized tidal-energy electric generator set Download PDFInfo
- Publication number
- CN108397342A CN108397342A CN201810452300.1A CN201810452300A CN108397342A CN 108397342 A CN108397342 A CN 108397342A CN 201810452300 A CN201810452300 A CN 201810452300A CN 108397342 A CN108397342 A CN 108397342A
- Authority
- CN
- China
- Prior art keywords
- power generation
- runner
- fixedly installed
- gearbox
- fixedly connected
- 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.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
- F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/121—Blades, their form or construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/403—Transmission of power through the shape of the drive components
- F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The invention discloses a kind of small-sized tidal-energy electric generator sets, including runner, the runner outer surface has been fixedly connected with rotating vane in both sides up and down, it is fixedly connected with left rotary shaft on the left of the runner, it is fixedly connected with right spindle on the right side of the runner, the left rotary shaft is fixedly installed reinforcing ring with the junction with runner on right spindle, side of the left rotary shaft far from runner is fixedly installed the first power generation box, side of the right spindle far from runner is fixedly connected with the second power generation box, the first power generation box roof top side is fixedly installed the first gearbox, the side far from gearbox is fixedly installed the first generator at the top of the first power generation chamber interior wall, the second power generation chamber interior wall top side is fixedly installed the second gearbox, the present invention relates to field of new energy technologies.The small-sized tidal-energy electric generator set, it is small, it is easy for installation, a variety of units can be spliced into, rotating vane intensity is high and durable.
Description
Technical field
The present invention relates to field of new energy technologies, specially a kind of small-sized tidal-energy electric generator set.
Background technology
Tide is the natural phenomena that mechanical periodicity is made on a kind of global sea level, as the mankind are to new energy use technology
Continuous exploration, also become a kind of normal method using generation of electricity by new energy using tidal power.Tide is in flood tide process
In, contain prodigious kinetic energy, while potential energy constantly increases；During on the ebb, potential energy can be converted into kinetic energy, so
It moves in circles, energy recycles always.
Tidal power machine be using the important ring of tidal power, but existing tidal power body product compared with
Greatly, it is not easy to assemble and safeguard, cause use cost high, while rotating vane is susceptible to damage phenomenon.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of small-sized tidal-energy electric generator set, the prior art is solved
In, tidal power body type is huge the problem of being not easy to assembling, while strengthening rotating vane intensity, reduces generator damage ratio.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：A kind of small-sized tidal-energy electric generator set,
Including runner, both sides have been fixedly connected with rotating vane up and down for the runner outer surface, and left rotary shaft is fixedly connected on the left of the runner,
Be fixedly connected with right spindle on the right side of the runner, the left rotary shaft be fixedly installed with the junction of runner on right spindle plus
Gu ring, side of the left rotary shaft far from runner is fixedly installed the first power generation box, and side of the right spindle far from runner is solid
Surely it is connected with the second power generation box, the first power generation box roof top side is fixedly installed the first gearbox, first hair
The side far from the first gearbox is fixedly installed the first generator, the second power generation chamber interior wall top one at the top of electronic box inner wall
Side is fixedly installed the second gearbox, and the side far from the second gearbox is fixedly installed the at the top of the second power generation chamber interior wall
Two generators, side of the left rotary shaft far from runner passes through inner wall on the right side of the first power generation box, and fixes and connect with the first gearbox
It connects, the side of first gearbox far from left rotary shaft is fixedly connected with the first output shaft, and first output shaft is far from first
The side of gearbox is fixedly connected with the first generator, and side of the right spindle far from runner passes through the left side of the second power generation box
Inner wall, and be fixedly connected with the second gearbox, the side of second gearbox far from right spindle is fixedly connected with the second output
Axis, side of second output shaft far from the second gearbox are fixedly connected with the second generator.
Preferably, it is fixedly installed current collection device on the downside of first generator and the second generator, described the
One power generation box and the second power generation chamber interior wall bottom center are fixedly installed accumulator.
Preferably, first power generation box and the second power generation box lower surface center are fixedly installed connecting plate, the company
It is fixedly connected with flexible inserted link on the downside of fishplate bar, is used for fixing device.
Preferably, outer wall center is fixedly installed link on the left of first power generation box, and the second power generation box right side is outer
Wall is fixedly installed hook, and the end of the hook far from the second power generation box has been connected through a screw thread nut.
Preferably, reinforcing rib is fixedly installed on the rotating vane outer surface, close to the one of runner on the rotating vane outer surface
Side is fixedly installed securing plate, and the securing plate has been fixedly arranged at the upper side threaded rod, and the threaded rod passes through securing plate and extends
On the downside of to securing plate, the end that the threaded rod is located on the downside of securing plate is fixedly connected with runner.
Preferably, the left rotary shaft passes through inner wall on the right side of the first gearbox, and extends to the first transmission internal, the left side
The end section that shaft is located at the first transmission internal is fixedly connected with gear wheel, is engaged on the upside of the gear wheel and is connected with small tooth
It takes turns, is fixedly connected with the first output shaft at the pinion gear axle center.
(3) advantageous effect
The present invention provides a kind of small-sized tidal-energy electric generator sets, have following advantageous effect：
(1), the setting of the small-sized tidal-energy electric generator set drives the rotation of rotating vane runner by tide energy, is further driven to
Both sides shaft rotation, the setting of generator is connected finally by gearbox, has achieved the purpose that power generation, passes through link and hook
Setting, has achieved the purpose that splice and combine different groups of number generators, whole device is small, and can be connected into generating set.
(2), the small-sized tidal-energy electric generator set has been reached reinforcing and has been turned by the setting of reinforcing rib on rotating vane and securing plate
The purpose of leaf so that rotating vane durability enhances.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is rotating vane structural schematic diagram of the present invention；
Fig. 3 is gearbox designs schematic diagram of the present invention.
In figure：1 runner, 2 rotating vanes, 3 left rotary shafts, 4 right spindles, 5 reinforcing rings, 6 first power generation boxes, 7 second power generation boxes, 8
One gearbox, 9 first generators, 10 second gearboxes, 11 second generators, 12 first output shafts, 13 second output shafts, 14 electricity
Flow collection device, 15 accumulators, 16 connecting plates, 17 flexible inserted links, 18 links, 19 hooks, 20 nuts, 21 reinforcing ribs, 22 reinforcings
Plate, 23 threaded rods, 24 gear wheels, 25 pinion gears.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of small-sized tidal-energy electric generator set, including runner 1,
Both sides have been fixedly connected with rotating vane 2 to 1 outer surface of runner up and down, and 1 left side of runner is fixedly connected with left rotary shaft 3, and 1 right side of runner is fixed
It is connected with right spindle 4, left rotary shaft 3 is fixedly installed reinforcing ring 5 with the junction with runner 1 on right spindle 4, and left rotary shaft 3 is remote
Side from runner 1 is fixedly installed the first power generation box 6, and side of the right spindle 4 far from runner 1 is fixedly connected with the second power generation box
7,6 roof top side of the first power generation box is fixedly installed the first gearbox 8, becomes far from first at the top of 6 inner wall of the first power generation box
The side of fast case 8 is fixedly installed the first generator 9, and 7 inner wall top side of the second power generation box is fixedly installed the second gearbox
10, side of 7 inner wall of the second power generation box top far from the second gearbox 10 is fixedly installed the second generator 11, and left rotary shaft 3 is remote
Side from runner 1 passes through 6 right side inner wall of the first power generation box, and is fixedly connected with the first gearbox 8, and the first gearbox 8 is separate
The side of left rotary shaft 3 is fixedly connected with the first output shaft 12, side of first output shaft 12 far from the first gearbox 8 and the first hair
Motor 9 is fixedly connected, side of the right spindle 4 far from runner 1 pass through the second power generation box 7 inner left wall, and with the second gearbox
10 are fixedly connected, and the second side of the gearbox 10 far from right spindle 4 is fixedly connected with the second output shaft 13, and the second output shaft 13 is remote
Side from the second gearbox 10 is fixedly connected with the second generator 11.
First generator 9 and the downside of the second generator 11 are fixedly installed current collection device 14, the first power generation box 6 with
Second power generation box, 7 inner wall bottom center is fixedly installed accumulator 15.
First power generation box 6 and 7 lower surface center of the second power generation box are fixedly installed connecting plate 16, and 16 downside of connecting plate is solid
Surely it is connected with flexible inserted link 17.
First power generation box, 6 left side outer wall center is fixedly installed link 18, and 7 outer right wall of the second power generation box is fixedly installed
Hook 19,19 ends far from the second power generation box 7 of hook have been connected through a screw thread nut 20.
It is fixedly installed reinforcing rib 21 on 2 outer surface of rotating vane, is fixedly installed close to the side of runner 1 on 2 outer surface of rotating vane
There are securing plate 22, securing plate 22 to be fixedly arranged at the upper side threaded rod 23, threaded rod 23 passes through securing plate 22 and extends to securing plate
22 downsides, the end that threaded rod 23 is located at 22 downside of securing plate are fixedly connected with runner 1.
Left rotary shaft 3 passes through 8 right side inner wall of the first gearbox, and extends to inside the first gearbox 8, and left rotary shaft 3 is located at the
End section inside one gearbox 8 is fixedly connected with gear wheel 24, and 24 upside engagement of gear wheel is connected with pinion gear 25, small tooth
It takes turns and is fixedly connected with the first output shaft 12 at 25 axle center.
In use, flow drives rotating vane 2 to rotate, left rotary shaft 3 and the rotation of right spindle 4 are further driven under generator effect
Power generation.Hook 19 and link 18 are respectively arranged at left and right sides of this device, for splicing multigroup device.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " including one ... the element limited, it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of small-sized tidal-energy electric generator set, including runner (1), it is characterised in that：Both sides above and below runner (1) outer surface
It has been fixedly connected with rotating vane (2), left rotary shaft (3) is fixedly connected on the left of the runner (1), runner (1) right side is fixed to be connected
It is connected to right spindle (4), the left rotary shaft (3) is fixedly installed reinforcing ring with the junction with runner (1) on right spindle (4)
(5), side of the left rotary shaft (3) far from runner (1) is fixedly installed the first power generation box (6), and the right spindle (4) is separate to be turned
The side of wheel (1) is fixedly connected with the second power generation box (7), and the first power generation box (6) roof top side is fixedly installed the
One gearbox (8), side of the first power generation box (6) inner wall top far from the first gearbox (8) are fixedly installed the first hair
Motor (9), the second power generation box (7) inner wall top side are fixedly installed the second gearbox (10), second power generation box
(7) side far from the second gearbox (10) is fixedly installed the second generator (11) at the top of inner wall, and the left rotary shaft (3) is separate
The side of runner (1) passes through inner wall on the right side of the first power generation box (6), and is fixedly connected with the first gearbox (8), first speed change
Side of the case (8) far from left rotary shaft (3) is fixedly connected with the first output shaft (12), and first output shaft (12) becomes far from first
The side of fast case (8) is fixedly connected with the first generator (9), and side of the right spindle (4) far from runner (1) passes through the second hair
The inner left wall of electronic box (7), and be fixedly connected with the second gearbox (10), second gearbox (10) is far from right spindle (4)
Side be fixedly connected with the second output shaft (13), side of second output shaft (13) far from the second gearbox (10) and the
Two generators (11) are fixedly connected.
2. a kind of small-sized tidal-energy electric generator set according to claim 1, it is characterised in that：First generator (9)
It is fixedly installed current collection device (14), first power generation box (6) and the second power generation with the second generator (11) downside
Case (7) inner wall bottom center is fixedly installed accumulator (15).
3. a kind of small-sized tidal-energy electric generator set according to claim 1, it is characterised in that：First power generation box (6)
It is fixedly installed connecting plate (16) with the second power generation box (7) lower surface center, is fixedly connected on the downside of the connecting plate (16)
Flexible inserted link (17).
4. a kind of small-sized tidal-energy electric generator set according to claim 1, it is characterised in that：First power generation box (6)
Left side outer wall center is fixedly installed link (18), and the second power generation box (7) outer right wall is fixedly installed hook (19), institute
It states end of the hook (19) far from the second power generation box (7) and has been connected through a screw thread nut (20).
5. a kind of small-sized tidal-energy electric generator set according to claim 1, it is characterised in that：Rotating vane (2) outer surface
On be fixedly installed reinforcing rib (21), the side on rotating vane (2) outer surface close to runner (1) is fixedly installed securing plate
(22), the securing plate (22) has been fixedly arranged at the upper side threaded rod (23), and the threaded rod (23) passes through securing plate (22) and prolongs
It extends on the downside of securing plate (22), the threaded rod (23) is located at the end on the downside of securing plate (22) and is fixedly connected with runner (1).
6. a kind of small-sized tidal-energy electric generator set according to claim 1, it is characterised in that：The left rotary shaft (3) passes through
Inner wall on the right side of first gearbox (8), and the first gearbox (8) inside is extended to, the left rotary shaft (3) is located at the first gearbox
(8) internal end section is fixedly connected with gear wheel (24), is engaged on the upside of the gear wheel (24) and is connected with pinion gear (25),
It is fixedly connected with the first output shaft (12) at pinion gear (25) axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452300.1A CN108397342A (en) | 2018-05-12 | 2018-05-12 | A kind of small-sized tidal-energy electric generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452300.1A CN108397342A (en) | 2018-05-12 | 2018-05-12 | A kind of small-sized tidal-energy electric generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108397342A true CN108397342A (en) | 2018-08-14 |
Family
ID=63101991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810452300.1A Withdrawn CN108397342A (en) | 2018-05-12 | 2018-05-12 | A kind of small-sized tidal-energy electric generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397342A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060119107A1 (en) * | 2004-12-03 | 2006-06-08 | Coman John H | Floating electricity production unit |
| US7564143B1 (en) * | 2007-12-26 | 2009-07-21 | Weber Harold J | Staging of tidal power reserves to deliver constant electrical generation |
| KR20090119320A (en) * | 2008-05-16 | 2009-11-19 | 이상오 | Electric generating apparatus use tidal power |
| WO2010126229A2 (en) * | 2009-04-27 | 2010-11-04 | Jang Kyung Soo | Small-scale, large-capacity, seawater-flow power generator for high-speed seawater flows |
| WO2011122892A2 (en) * | 2010-04-01 | 2011-10-06 | Kim Han Joong | Power generating apparatus which improves energy efficiency |
| WO2012141470A2 (en) * | 2011-04-13 | 2012-10-18 | Lee Dong-Hak | Shaft for tidal current generator, tidal current generator having same, and tidal current generation system |
| WO2013048007A2 (en) * | 2011-09-29 | 2013-04-04 | 현대건설주식회사 | High-efficiency tidal current generator, and hybrid generation system |
| CN204511762U (en) * | 2015-04-10 | 2015-07-29 | 广东梅雁吉祥水电股份有限公司 | A kind of small-sized electric generating apparatus utilizing tidal power generation |
| US20160152307A1 (en) * | 2013-07-01 | 2016-06-02 | Chang Zhang | Multifunctional carrying device for tidal stream generator and using method thereof |
| CN106351782A (en) * | 2016-08-26 | 2017-01-25 | 国家海洋局第二海洋研究所 | Wave current combined power generation platform |
| CN206860369U (en) * | 2017-05-23 | 2018-01-09 | 李新向 | A kind of complementary small-sized electric generating apparatus of agitation |
| CN208236553U (en) * | 2018-05-12 | 2018-12-14 | 王爱金 | A kind of small-sized tidal-energy electric generator set |
-
2018
- 2018-05-12 CN CN201810452300.1A patent/CN108397342A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060119107A1 (en) * | 2004-12-03 | 2006-06-08 | Coman John H | Floating electricity production unit |
| US7564143B1 (en) * | 2007-12-26 | 2009-07-21 | Weber Harold J | Staging of tidal power reserves to deliver constant electrical generation |
| KR20090119320A (en) * | 2008-05-16 | 2009-11-19 | 이상오 | Electric generating apparatus use tidal power |
| WO2010126229A2 (en) * | 2009-04-27 | 2010-11-04 | Jang Kyung Soo | Small-scale, large-capacity, seawater-flow power generator for high-speed seawater flows |
| WO2011122892A2 (en) * | 2010-04-01 | 2011-10-06 | Kim Han Joong | Power generating apparatus which improves energy efficiency |
| WO2012141470A2 (en) * | 2011-04-13 | 2012-10-18 | Lee Dong-Hak | Shaft for tidal current generator, tidal current generator having same, and tidal current generation system |
| WO2013048007A2 (en) * | 2011-09-29 | 2013-04-04 | 현대건설주식회사 | High-efficiency tidal current generator, and hybrid generation system |
| US20160152307A1 (en) * | 2013-07-01 | 2016-06-02 | Chang Zhang | Multifunctional carrying device for tidal stream generator and using method thereof |
| CN204511762U (en) * | 2015-04-10 | 2015-07-29 | 广东梅雁吉祥水电股份有限公司 | A kind of small-sized electric generating apparatus utilizing tidal power generation |
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| CN206860369U (en) * | 2017-05-23 | 2018-01-09 | 李新向 | A kind of complementary small-sized electric generating apparatus of agitation |
| CN208236553U (en) * | 2018-05-12 | 2018-12-14 | 王爱金 | A kind of small-sized tidal-energy electric generator set |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180814 |