CN111953130B - Flywheel energy storage device - Google Patents
Flywheel energy storage device Download PDFInfo
- Publication number
- CN111953130B CN111953130B CN201910402181.3A CN201910402181A CN111953130B CN 111953130 B CN111953130 B CN 111953130B CN 201910402181 A CN201910402181 A CN 201910402181A CN 111953130 B CN111953130 B CN 111953130B
- Authority
- CN
- China
- Prior art keywords
- air bag
- shell
- energy storage
- vacuumizing
- storage device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a flywheel energy storage device, which comprises a shell, a rotating shaft, a flywheel body, a thrust bearing and an air bag, wherein the shell comprises an end cover which can be opened and closed, the rotating shaft, the flywheel body, the thrust bearing and the air bag are all arranged in the shell, the flywheel body and the thrust bearing are respectively sleeved on the rotating shaft, the thrust bearing is arranged close to the end cover, the air bag is positioned on one side of the flywheel body, the air bag can be inflated to push the flywheel body to move along the rotating shaft in a direction far away from the thrust bearing, and the air bag can be deflated to release the thrust to the flywheel body. When the thrust bearing needs to be replaced, the flywheel energy storage device can charge the air bag to support and push the flywheel body to move along the rotating shaft in the direction away from the thrust bearing, so that the force pressed on the thrust bearing is greatly reduced, an operator can replace the thrust bearing conveniently, the air bag is deflated after the replacement is finished, the flywheel body can be assembled back to the original position, and the operation is very convenient.
Description
Technical Field
The invention relates to the technical field of flywheel energy storage, in particular to a flywheel energy storage device.
Background
The flywheel energy storage device is an energy storage device for electromechanical energy conversion and has wide application prospect. The thrust bearing is the most easily damaged part of the whole flywheel energy storage device, so that the replacement frequency is highest. In the related art, when the thrust bearing is replaced, a machine is usually required to lift the shell and the flywheel body of the flywheel energy storage device, so as to release the pressure generated by the gravity of the flywheel body on the thrust bearing, so that the thrust bearing to be replaced is detached, but the method requires a lifting machine and is operated in a specific place, and is very troublesome to operate.
Disclosure of Invention
The invention aims to provide a flywheel energy storage device which has the advantage of being convenient for replacing a thrust bearing.
To achieve the purpose, the invention adopts the following technical scheme:
a flywheel energy storage device, comprising:
a housing including an openable and closable end cap;
a rotating shaft disposed in the housing;
the flywheel body is arranged in the shell and sleeved on the rotating shaft;
a thrust bearing sleeved on the rotating shaft; the method comprises the steps of,
the air bag is arranged in the shell and is positioned on one side of the flywheel body, the air bag can be inflated to push the flywheel body to move along the rotating shaft in a direction away from the thrust bearing, and the air bag can be deflated to release the thrust on the flywheel body.
In one embodiment, the flywheel energy storage device further comprises an inflation mechanism for inflating the air bag and a vacuumizing mechanism for vacuumizing the air bag, and the inflation pipeline is provided with a first control valve.
In one embodiment, the inflation mechanism comprises an inflation pipeline for communicating the air bag with an external inflation device, and a first control valve is arranged on the inflation pipeline; and/or the vacuumizing mechanism comprises a vacuumizing pipeline and a vacuum valve arranged on the vacuumizing pipeline, one end of the vacuumizing pipeline penetrates through the shell to be communicated with the air bag, and the vacuum valve is positioned outside the shell.
In one embodiment, the shell is a vacuum shell, the vacuumizing mechanism comprises a vacuumizing pipeline and a vacuum valve arranged on the vacuumizing pipeline, the vacuumizing pipeline is communicated with the inside of the shell, and the vacuum valve is positioned outside the shell;
the flywheel energy storage device further comprises a connecting pipe, the air bag is communicated with the shell through the connecting pipe, a second control valve is arranged on the connecting pipe, and the second control valve is located outside the shell.
In one embodiment, the shell is provided with a vacuumizing port, and the vacuumizing pipeline is connected to the vacuumizing port; or alternatively, the process may be performed,
the vacuumizing pipeline is connected to the connecting pipe, and the connecting point of the connecting pipe and the vacuumizing pipeline is located between the connecting point of the connecting pipe and the shell and the second control valve.
In one embodiment, the inflation mechanism comprises an inflation pipeline for communicating the air bag with an external inflation device, and a first control valve is arranged on the inflation pipeline; the inflation pipeline is connected to the connecting pipe, and the connecting point of the connecting pipe and the inflation pipeline is located between the connecting point of the connecting pipe and the air bag and the second control valve.
In one embodiment, the air bag is an annular air bag, and the air bag is arranged around the periphery of the rotating shaft in a surrounding manner; and/or the flywheel energy storage device further comprises a restraint strap connecting the air bag and the shell and used for restraining the air bag.
In one embodiment, an inner wall surface of the housing is provided with a crash pad, and the flywheel body can abut against the crash pad when moving along the rotating shaft in a direction away from the thrust bearing.
In one embodiment, the crash pad is an elastomer.
In one embodiment, the flywheel energy storage device further comprises a motor connected with the rotating shaft and a guide bearing sleeved on the rotating shaft, and the guide bearing and the motor are both arranged in the shell.
The flywheel energy storage device has at least the following beneficial effects: the inflatable and deflatable air bag is arranged in the shell, when the thrust bearing below the flywheel body needs to be replaced, the air bag can be inflated to support and push the flywheel body to move along the rotating shaft in the direction away from the thrust bearing, so that the force of pressing on the thrust bearing is greatly reduced, an operator can replace the thrust bearing conveniently, the air bag is deflated after replacement is finished, the flywheel body can be assembled in situ, and the operation is very simple and convenient. In addition, in the transportation process of the flywheel energy storage device, the damage to the bearing caused by vibration can be reduced by inflating and supporting the flywheel body through the air bag, and the service life of the bearing is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a flywheel energy storage device according to an embodiment of the present invention;
reference numerals illustrate:
the device comprises a shell 100, an end cover 110, a rotating shaft 210, a motor 220, a flywheel body 300, a thrust bearing 410, a guide bearing 420, an air bag 500, a restraint strap 510, an air charging pipeline 600, a first control valve 610, a vacuumizing pipeline 710, a vacuum valve 720, a connecting pipe 800, a second control valve 810 and an anti-collision pad 900.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings.
It should be noted that when a portion is referred to as being "fixed to" another portion, it may be directly on the other portion or there may be a portion in the middle. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the flywheel energy storage device of an embodiment includes a housing 100, a rotating shaft 210, a flywheel body 300, a thrust bearing 410, and a balloon 500, wherein the housing 100 includes an openable and closable end cover 110; the rotation shaft 210 is disposed in the housing 100; the flywheel body 300 is disposed in the housing 100 and sleeved on the rotating shaft 210; thrust bearing 410 is sleeved on shaft 210 and disposed proximate end cap 110; the airbag 500 is disposed in the housing 100 at one side of the flywheel body 300, the airbag 500 is inflatable to push the flywheel body 300 to move along the rotation shaft 210 in a direction away from the thrust bearing 410, and the airbag 500 is deflatable to release the thrust to the flywheel body 300.
According to the flywheel energy storage device, the inflatable and deflatable air bags are arranged in the shell, when the thrust bearing below the flywheel body needs to be replaced, the air bags can be inflated to support and push the flywheel body to move along the rotating shaft in the direction away from the thrust bearing, so that the force of pressure on the thrust bearing is greatly reduced, an operator can replace the thrust bearing conveniently, the air bags are deflated after replacement is finished, the flywheel body can be assembled in situ, and the operation is very convenient. In addition, in the transportation process of the flywheel energy storage device, the damage to the bearing caused by vibration can be reduced by inflating and supporting the flywheel body through the air bag, and the service life of the bearing is prolonged.
The flywheel energy storage device further comprises a motor 220 connected with the rotating shaft 210 and a guide bearing 420 sleeved on the rotating shaft 210, and the guide bearing 420 and the motor 220 are both arranged in the shell 100. The housing 100 may be a vacuum housing, which is used to provide a vacuum environment to reduce windage losses when the motor 220 is in operation. Specifically, the housing 100 is a vacuum housing having a vacuum chamber, and the rotating shaft 210, the motor 220, the flywheel body 300, the thrust bearing 410, the guide bearing 420, the air bag 500, and other components are all disposed in the vacuum chamber of the housing 100.
Further, in order to prevent the flywheel body 300 from colliding with the housing 100 when pushed up by the airbag 500, a crash pad 900 is provided on the inner wall surface of the housing 100, and the flywheel body 300 can abut against the crash pad 900 when moving along the rotation shaft 210 in a direction away from the thrust bearing 410, thereby reducing the risk of damage to the housing 100 due to collision with the flywheel body 300. The crash pad 900 is preferably an elastomer, and the elastomer may be rubber or silica gel, for example, the crash pad 900 may be a rubber block, a rubber retainer ring, a silica gel block, or a silica gel ring.
In order to achieve inflation and deflation of the balloon 500, the flywheel energy storage device further comprises an inflation mechanism for inflating the balloon 500 and a vacuuming mechanism for vacuuming the balloon 500.
Specifically, the inflation mechanism includes an inflation tube 600 for communicating the airbag 500 with an external inflation device, a first control valve 610 is provided on the inflation tube 600, and one end of the inflation tube 600 is communicated with the airbag 500 after passing through the housing 100. When the airbag 500 is inflated, the first control valve 610 is opened, gas conveyed by an external inflator enters the airbag 500 through the inflation pipeline 600, and when the internal air pressure of the airbag 500 reaches a preset requirement, the first control valve 610 is closed to stop inflation; when the air bag 500 needs to be deflated, the air bag 500 is vacuumized through a vacuuming mechanism.
Specifically, the evacuation mechanism may include an evacuation conduit 710 and a vacuum valve 720 disposed on the evacuation conduit 710. Implementations of the evacuation mechanism described above to evacuate the airbag 500 include, but are not limited to, the following: in the first way, the vacuum valve 720 is located outside the housing 100, one end of the vacuum pumping pipeline 710 passes through the housing 100 to be communicated with the air bag 500, and the air bag 500 is directly pumped with vacuum through the vacuum pumping pipeline 710 connected with an external vacuum pump; in the second mode, when the housing 100 is a vacuum housing, the object of vacuumizing the vacuumizing mechanism includes an air bag 500 and the housing 100, the flywheel energy storage device includes a connecting pipe 800, the air bag 500 is communicated with the housing 100 through the connecting pipe 800, a second control valve 810 is arranged on the connecting pipe 800, the second control valve 810 is positioned outside the housing 100, the vacuumizing pipe 710 is communicated with the inside of the housing 100, the vacuum valve 720 is positioned outside the housing 100, and when the second control valve 810 is in an open state, the vacuumizing pipe 710 is connected through an external vacuum pump to vacuumize the housing 100, and because the air bag 500 is communicated with the housing 100, the air bag 500 is vacuumized when the external vacuum pump vacuumizes the housing 100. The embodiment shown in fig. 1 employs a second approach.
In the first mode, the inflation mechanism includes the inflation pipe 600 for communicating the airbag 500 with the external inflator, the inflation pipe 600 is provided with the first control valve 610, the inflation pipe 600 may be connected to the connection pipe 800, and the connection point of the connection pipe 800 and the inflation pipe 600 is located between the connection point of the connection pipe 800 and the airbag 500 and the second control valve 810, so that the pipeline and the space can be saved, and the overall structure of the flywheel energy storage device is simpler.
In the second mode, the way in which the evacuation pipe 710 communicates with the interior of the housing 100 may be: a vacuum-pumping port is formed on the shell 100, and a vacuum-pumping pipeline 710 is connected to the vacuum-pumping port (as shown in fig. 1); alternatively, the vacuum pipe 710 is connected to the connection pipe 800, and the connection point of the connection pipe 800 and the vacuum pipe 710 is located between the connection point of the connection pipe 800 and the housing 100 and the second control valve 810, so that piping and space can be saved, and the overall structure of the flywheel energy storage device is simpler.
In this embodiment, the air bag 500 may be an annular air bag, and the air bag 500 is enclosed on the periphery of the rotating shaft 210; and/or the flywheel energy storage device further comprises a restraining belt 510 for connecting the airbag 500 with the housing 100 and restraining the airbag 500, wherein the position of the airbag 500 in the housing 100 is restrained by the restraining belt 510, so that the airbag 500 cannot be effectively contacted with the flywheel body 300 after being inflated, and cannot support and push the flywheel body 300. Of course, in other embodiments, the air bag 500 may be of other shapes, and the invention is not limited thereto, as long as the air bag 500 can move the flywheel body 300 along the rotation axis 200 in a direction away from the thrust bearing 410. Specifically, the number of the air bags 500 is at least one, and when the number of the air bags 500 is plural, the plural air bags 500 may be inflated simultaneously to support and push the flywheel body 300.
The operation of the flywheel energy storage device to replace the thrust bearing will be described with reference to fig. 1:
opening the first control valve 610, inflating the airbag 500 through the inflation pipe 600, closing the second control valve 810 when the pressure in the housing 100 is consistent with the outside, opening the vacuum valve 720, stopping inflation after the pressure of the airbag 500 is increased, jacking the flywheel body 300 up to abut against the upper crash pad 900, closing the first control valve 610, opening the end cover 110 of the housing 100, and replacing the thrust bearing 410; after the thrust bearing 410 is replaced, the end cover 110 is closed, the second control valve 810 and the vacuum valve 720 are opened, the vacuum pump is started, the shell 100 is vacuumized through the vacuumizing pipeline 710, and the gas in the air bag 500 enters the shell 100 through the second control valve 810 and is pumped out by the vacuum pump.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. A flywheel energy storage device, comprising:
a housing (100) including an openable and closable end cap (110);
a rotating shaft (210) provided in the housing (100);
the flywheel body (300) is arranged in the shell (100) and sleeved on the rotating shaft (210);
a thrust bearing (410) sleeved on the rotating shaft (210); the method comprises the steps of,
an airbag (500) disposed in the housing (100) and located at one side of the flywheel body (300), the airbag (500) being inflatable to push the flywheel body (300) to move along the rotation shaft (210) in a direction away from the thrust bearing (410), and the airbag (500) being deflatable to release the thrust to the flywheel body (300);
the flywheel energy storage device further comprises an inflation mechanism for inflating the air bag (500) and a vacuumizing mechanism for vacuumizing the air bag (500);
the inflation mechanism comprises an inflation pipeline (600) for communicating the airbag (500) with an external inflation device, and a first control valve (610) is arranged on the inflation pipeline (600); and/or the vacuumizing mechanism comprises a vacuumizing pipeline (710) and a vacuum valve (720) arranged on the vacuumizing pipeline (710), one end of the vacuumizing pipeline (710) is communicated with the air bag (500) through the shell (100), and the vacuum valve (720) is positioned outside the shell (100);
the shell (100) is a vacuum shell, the vacuumizing mechanism comprises a vacuumizing pipeline (710) and a vacuum valve (720) arranged on the vacuumizing pipeline (710), the vacuumizing pipeline (710) is communicated with the inside of the shell (100), and the vacuum valve (720) is positioned outside the shell (100);
the flywheel energy storage device further comprises a connecting pipe (800), the air bag (500) is communicated with the shell (100) through the connecting pipe (800), a second control valve (810) is arranged on the connecting pipe (800), and the second control valve (810) is positioned outside the shell (100);
the shell (100) is provided with a vacuumizing port, and the vacuumizing pipeline (710) is connected to the vacuumizing port; alternatively, the vacuum pipe (710) is connected to the connection pipe (800), and the connection point of the connection pipe (800) and the vacuum pipe (710) is located between the connection point of the connection pipe (800) and the housing (100) and the second control valve (810);
the inflation mechanism comprises an inflation pipeline (600) for communicating the airbag (500) with an external inflation device, and a first control valve (610) is arranged on the inflation pipeline (600); the inflation pipe (600) is connected to the connection pipe (800), and a connection point of the connection pipe (800) and the inflation pipe (600) is located between a connection point of the connection pipe (800) and the airbag (500) and the second control valve (810).
2. The flywheel energy storage device according to claim 1, characterized in that the air bag (500) is an annular air bag, the air bag (500) being enclosed at the periphery of the rotating shaft (210); and/or the flywheel energy storage device further comprises a restraint strap (510) connecting the airbag (500) with the housing (100) for restraining the airbag (500).
3. Flywheel energy storage device according to any of claims 1 to 2, characterized in that the inner wall surface of the housing (100) is provided with a crash pad (900) which can abut against the crash pad (900) when the flywheel body (300) is moved along the rotational axis (210) in a direction away from the thrust bearing (410).
4. A flywheel energy storage device according to claim 3, characterized in that said crash pad (900) is an elastomer.
5. The flywheel energy storage device according to any of claims 1 to 2, further comprising a motor (220) connected to the shaft (210) and a guide bearing (420) fitted over the shaft (210), both the guide bearing (420) and the motor (220) being arranged within the housing (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402181.3A CN111953130B (en) | 2019-05-15 | 2019-05-15 | Flywheel energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402181.3A CN111953130B (en) | 2019-05-15 | 2019-05-15 | Flywheel energy storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111953130A CN111953130A (en) | 2020-11-17 |
| CN111953130B true CN111953130B (en) | 2023-08-08 |
Family
ID=73336390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910402181.3A Active CN111953130B (en) | 2019-05-15 | 2019-05-15 | Flywheel energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111953130B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854274A (en) * | 1988-02-25 | 1989-08-08 | Dingess Billy E | Power booster internal combustion engine flywheel |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
| CN103089761A (en) * | 2012-12-26 | 2013-05-08 | 北京兴华机械厂 | Method and device for magnetic suspension control moment gyroscope repeatable locking |
| CN104295322A (en) * | 2014-10-13 | 2015-01-21 | 太原理工大学 | Pneumatic engine adopting spiral rod for transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7467607B2 (en) * | 2002-12-12 | 2008-12-23 | David Beatty Jones | Free piston vacuum producing apparatus |
| US10848031B2 (en) * | 2016-11-30 | 2020-11-24 | Saint-Augustin Canada Electric Inc. | Integrated flywheel energy storage system |
-
2019
- 2019-05-15 CN CN201910402181.3A patent/CN111953130B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854274A (en) * | 1988-02-25 | 1989-08-08 | Dingess Billy E | Power booster internal combustion engine flywheel |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
| CN103089761A (en) * | 2012-12-26 | 2013-05-08 | 北京兴华机械厂 | Method and device for magnetic suspension control moment gyroscope repeatable locking |
| CN104295322A (en) * | 2014-10-13 | 2015-01-21 | 太原理工大学 | Pneumatic engine adopting spiral rod for transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111953130A (en) | 2020-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR960015019B1 (en) | Inflating-letting out air apparatus in turnning tires | |
| US20190118593A1 (en) | Self-reinflating tire | |
| CN109624616A (en) | Elasticity is from aeration combined trouble-proof tire | |
| CN107914898B (en) | Carrier rocket sublevel recovery protection landing mechanism, device and working process | |
| CN108860510B (en) | Water rescue unmanned aerial vehicle with net body and operation method thereof | |
| CN111953130B (en) | Flywheel energy storage device | |
| EP1495848B1 (en) | Tire vulcanizing device | |
| CN114834418B (en) | Emergency valve with emergency acceleration relief function | |
| CN219224077U (en) | Air tightness detection system | |
| CN109208246B (en) | Clothes lifting mechanism for washing machine and washing machine | |
| CN209600823U (en) | It is a kind of pneumatically to unlock mechanism of opening the cabin | |
| CN204025129U (en) | Centrifugal pump | |
| CN109927495A (en) | Automobile tyre built-in air charging system | |
| JP2017036041A (en) | Air holding pump | |
| CN206555087U (en) | Round trip inflator | |
| CN112721546A (en) | Emergency protection device for automobile tire | |
| CN208826518U (en) | A kind of air bag assembly device | |
| CN211364228U (en) | Annular air bag door | |
| CN213835071U (en) | Mobile phone glass cover plate fixing device | |
| CN207111396U (en) | A kind of air bag for being easy to triplex mud pump to depressurize | |
| CN221236849U (en) | Vacuum pump | |
| ES2856758T3 (en) | Tire inflation device and tire inflation procedure, as well as use of negative pressure when mounting tires | |
| CN217841939U (en) | Air pump capable of being rapidly inflated and deflated | |
| RU2077994C1 (en) | Pneumatic tyre inflator | |
| CN210118239U (en) | Air pump with inflating and vacuumizing functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |