CN107939726A - Water pump vane and preparation method thereof - Google Patents
Water pump vane and preparation method thereof Download PDFInfo
- Publication number
- CN107939726A CN107939726A CN201711356968.8A CN201711356968A CN107939726A CN 107939726 A CN107939726 A CN 107939726A CN 201711356968 A CN201711356968 A CN 201711356968A CN 107939726 A CN107939726 A CN 107939726A
- Authority
- CN
- China
- Prior art keywords
- blade
- cover board
- sharp edge
- water pump
- socket
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
- F04D29/2227—Construction and assembly for special materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/78—Making other particular articles propeller blades; turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The problem of the invention discloses a kind of timely preparation method of water pump vane, solves the water pump vane processing inconvenience of existing monomer-type, relatively heavy, and cost is high, the technical solution taken：Cover board and blade are formed by carrying out punch process to stainless steel sheet material, two cover boards are coaxially connected to be fixed together, cover board forms arching upward towards side during punch forming, and after the fitting of two cover boards is fixed together, sharp edge can be formed in the peripheral region of body.Process on the blade formed and form socket, some blades are distributed along the circumference with the sharp edge of body, sharp edge is plugged in socket, blade carries out axial restraint from two cover board peripheral regions to two cover boards, so that the connection fastness of this split type impeller therein is good, it is light-weight, so as to effectively save operating power consumption, it is easy to make, low cost.
Description
Technical field
The present invention relates to a kind of water pump vane and preparation method thereof.
Background technology
Water pump will realize water pumping, be unable to do without impeller set in it, formed by the high-speed rotation of impeller in pump chamber
Negative pressure, under atmospheric pressure, water are pressed into pump chamber, and water is pumped out under the action of the centrifugal force of impeller.It is existing general
In logical water pump, impeller is usually unitary structure, and base is made by casting the method for red punching in the impeller of this unitary structure
Block, then carries out milling via milling machine to surface again, thus formed one be connected as a single entity by discoidal body and some blades and
The impeller of the monomer-type of formation.Blade is arranged vertically on body, and in the opposite sides of body, the blade formed is generally in week
Also need to mutually stagger upwards.Moreover, for ease of being processed, the material of this impeller generally selects brass.Therefore, existing list
The water pump vane of body formula there are the problem of：Processing inconvenience, low production efficiency, cost is also of a relatively high, and copper impeller is also easily raw
Rust.Moreover, the impeller of this monomer-type is relatively heavy, the energy of required consumption during the work time is high, unfavorable energy saving.
The content of the invention
The technical problem to be solved in the invention is：A kind of new water pump vane is provided, the blade wheel structure is simple, is easy to
Prepare, low cost.
The present invention needs another technical problem for solving to be：The side that a kind of convenience prepares water pump vane is provided
Method.
To solve the technical problem, technical scheme：A kind of water pump vane, including circular body, at this
Wheel hub is equipped with the axial location of body, the peripheral region of body diminishes formed with sharp edge, sharp edge for the thickness of body from opposite sides
And formed, some blades are evenly equipped with sharp edge position, these blades are perpendicular to body, it is characterised in that body is split
Formula structure, including two cover boards being coaxially fixed together, two cover board periphery inboard portion are arched upward towards opposite sides respectively, two lids
The outer surface of plate constitutes the outer contour of body, is plugged on blade formed with socket, the sharp edge of body in socket, blade is at the same time
It is connected on two cover boards.
The wheel hub, cover board and blade generally use stainless steel, and wheel hub is cast member, and cover board and blade pass through plate
The mode of material punching press is molded.These components are assembled together, that is, form water pump vane.When being assembled, pass through two cover boards
Combine and constitute the outer contour of existing unitary impeller body so that impeller can adapt to the promotion to water.
Further, two cover boards between sharp edge and wheel hub formed with concave ring prominent toward each other, by rivet from recessed
At ring and two cover board rivet clasps together.By the fitting of concave ring bottom surface on two cover boards, and realize two cover boards in the axial direction that
This support, easy to the force of rivet so that the intensity for the body being made of cover board is ensured.
Further, inside sharp edge between concave ring formed with annular chamber, the elasticity of circular ring shape is equipped with annular chamber
Body.This elastomer is usually made of rubber or plastics, itself also has certain hardness.By setting elastomer so that
Body interior is enriched, stabilization during easy to impeller own rotation.
Further, socket is V-shaped, and the opposite sides of socket is respectively formed with clamp, and two clamps are respectively engaged with two
In card hole on cover board, clamp is contacted with elastomer phase.Blade is mutually clamped by clamp with cover board, simple in structure, and V-arrangement
When socket is engaged assembling with the sharp edge of body, blade and body phase clamping can be enable, in addition the presence of elastomer so that
Blade formed between body one it is stable couple system, easy to impeller in the course of work, the stability of itself is protected
Card.
Further, on the outer circumferential surface of wheel hub integrally formed with export-oriented bulge loop, export-oriented bulge loop is by two cover boards from opposite sides
It is crimped together.By setting export-oriented bulge loop, and facilitate coupling between wheel hub and body, export-oriented bulge loop can adapt to this very well
The requirement that kind split structure impeller firmly couples with wheel hub.
Further, the export-oriented bulge loop is located at the inner end of wheel hub, the inner face phase of a cover board therein and wheel hub
Fitting.Contact area between wheel shell and a cover board is big, and the fastness that couples that can be between wheel hub and body is ensured.
Further, correspond in the sharp edge of body at leaf position and be equipped with opening, blade is plugged in opening.Set
There is opening, can ensure circumferential stability of the blade on body well, water is carried out under the drive of body easy to blade
Promote.
A kind of preparation method of water pump vane, includes the following steps：
Cover board is processed, circular cover board is processed by way of punching press, the inboard portion of cover board periphery is arched upward to side, is being covered
The peripheral region of plate is formed with some uniformly distributed openings.
Blade is processed, blade is processed by impact style, formed with socket on blade, in the opposite sides shape of socket
Into there is clamp.
Body is formed, two panels cover board is coaxially snapped together, the outer rim of two panels cover board is bonded and forms sharp edge, makes wheel hub
It is connected between two panels cover board, two panels cover board is riveted together by rivet.
Blade is assembled, a piece of blade is assembled in each opening, blade is diametrically set, and socket is socketed in sharp edge position
Place, the clamp by shaping on blade are clamped in card hole on the cover board.
This preparation method can be well adapted for the preparation of this split structure impeller, with conventional monomer formula structure leaf
The preparation method of wheel is compared, and the preparation efficiency of this split structure impeller can improve more than 5.
Further, formed with annular chamber on the inside of sharp edge, when forming body the elastomer to match with annular chamber
It is arranged in annular chamber, when assembling blade so that the clamp top pressure on blade is on the surface of elastomer.
The beneficial effects of the present invention are：This water pump vane uses split structure, can select stainless steel sheet material to phase
Component is answered to carry out punch process, the speed of production of these components is fast, easy to process.And stainless steel is relative to brass, valency
Lattice are relatively cheap, are not easy to get rusty.Each component is in process, you can required shape is formed, generally need not be follow-up
Further surface working process.Impeller is formed by blade, cover board and wheel hub, it is simple in structure, it is also convenient for assembling, institute's shape
Into impeller weight it is light.Two cover boards are fixed together from medium position in itself, and some blades are provided with body sharp edge,
Blade can also be such that two cover boards are fixed together from sharp edge, make except playing the impetus to water during the work time
It is good to obtain the connection fastness of this impeller therein, easy to the steady operation of the impeller of this split structure.
Brief description of the drawings
Fig. 1 is the end face structure figure of this water pump vane.
Fig. 2 is the axial sectional view of this water pump vane.
Fig. 3 is the structure chart of cover board.
Fig. 4 is the end face structure figure of elastomer.
Fig. 5 is the lateral structure figure of elastomer.
Fig. 6 is the amplification assumption diagram of blade.
Fig. 7 is the structure chart of wheel hub.
Embodiment
With reference to attached drawing, this water pump vane is used to be rotatably mounted in the pump chamber of water pump, and structure includes circular body 1,
Wheel hub 2 is equipped with the axial location of body 1, rotating hub is used for and the power output shaft of motor is connected, power supply machine impeller
Rotated in pump chamber.The peripheral region of body 1 diminishes formed with sharp edge, sharp edge for the thickness of body 1 in the axial direction from opposite sides
And formed.Some blades 3 are evenly equipped with sharp edge position, these blades 3 are perpendicular to body 1, width and the body 1 of blade 3
Inboard portion thickness is generally equal.Due to there is the presence of sharp edge so that after blade 3 is arranged on body 1, blade 3 has opposite
The larger promotion effective area to water.
Body 1 is split structure, is assembled together by several components and is formed.These components have cover board 11, leaf
Piece 3 and wheel hub 2, they are generally stainless steel, and cover board 11 and blade 3 are stamping parts, and wheel hub 2 is cast member.Plate rushes
After pressure processing forms cover board 11 so that 11 periphery inboard portion of cover board is arched upward towards axial side, and to be formed on cover board 11
Sunk structure as one kind.In one impeller, including two cover boards 11 being coaxially fixed together, two cover boards 11 snap together,
And cause two cover boards, 11 periphery inboard portion is protruded towards opposite sides respectively to arch upward.The outer surface of two cover boards 11 constitutes body
1 outer contour, the periphery of two cover boards 11 and periphery inboard portion form the sharp edge structure on body 1.Plate stamping processes shape
During into blade 3, socket 31 can be formed on blade 3, the sharp edge of body 1 is plugged in socket 31, and blade 3 is connected to two lids at the same time
On plate 11, blade 3 grips the periphery of two cover boards 11 from the sharp edge position of body 1.
Realize the axial restraint to two cover boards 11, realized generally by the mode of riveting rivet.But due to lid
Corresponding site itself on plate 11 arches upward, this influences whether the fastness that rivet fixes two cover boards 11.Therefore, in cover board 11
Can be formed with prominent concave ring 12 in process, the concave ring 12 on two cover boards 11 is arranged symmetrically in relation to each other.Concave ring 12 is located at body 1
Between upper sharp edge and wheel hub 2, the concave ring 12 on two cover boards 11 protrudes toward each other, and the bottom surface of concave ring 12 is mutually close, passes through rivet
During from concave ring 12 and two cover boards, 11 rivet clasp together, the bottom surface of the concave ring 12 on two cover boards 11 fits together.
In this split type body 1, the inner hollow of sharp edge, formed with annular between concave ring 12 inside sharp edge
Chamber, is equipped with the elastomer 4 of circular ring shape in annular chamber.Elastomer 4 matches with annular chamber, outer surface and the annular of elastomer 4
The internal face of chamber fits.Elastomer 4 is usually made of the nonmetallic materials such as rubber, plastics.If on cover board 11 formed with
Dry penetrating card hole 14, corresponds at 3 position of blade in the peripheral region of cover board 11 and is equipped with opening 13.Card hole 14 is used for and blade 3
On 32 phase of clamp be connected together, and realize being connected and fixed between blade 3 and body 1.Socket 31 on blade 3 is V-shaped,
Clamp 32 is respectively formed at the opposite sides of socket 31, and after blade 3 is connected in from the sharp edge of body 1 on body 1, clamp 32 is saturating
Crossing card hole 14 can be in contact with elastomer 4, and blade 3 is at the same time in opening 13.
Integrally formed with export-oriented bulge loop 21 on the outer circumferential surface of wheel hub 2, export-oriented bulge loop 21 is by two cover boards 11 from opposite sides pressure
It is connected together.Four notches 22 are additionally provided with export-oriented bulge loop 21, these notches 22 are for being used for two cover boards 11 that are connected and fixed
Rivet passes through.Under normal conditions, export-oriented bulge loop 21 is located at the inner end of wheel hub 2, the inner face of a cover board 11 therein and wheel hub 2
Fit, and cause 2 direct top pressure of wheel hub on a cover board 11, the contact area between wheel hub 2 and the cover board 11 is relatively large,
Between wheel hub 2 and body 1 to couple fastness good.
The preparation method of this water pump vane is relatively simple, and key step includes：Cover board 11 is processed, processes blade 3, shape
Into body 1 and assembling blade 3.
Cover board 11 is to process what is formed by way of punching press by stainless steel materials, and cover board 11 is rounded, passes through mould
Setting so that during punch forming, the inboard portion of 11 periphery of cover board is arched upward to side, in the peripheral region shape of cover board 11
Into there is some uniformly distributed openings 13.Blade 3 is processed by impact style, the socket 31 formed with V-arrangement on blade 3, is being inserted
The opposite sides at 13 ends of the opening of mouth 31 are respectively formed with clamp 32.
Two panels cover board 11 is coaxially snapped together, the periphery of two panels cover board 11 is bonded and forms sharp edge, on two cover boards 11
Being open, 13 positions are overlapping one by one, and the sharp edge structure size is as shown in Fig. 2, the small inner side in periphery is big.The export-oriented bulge loop 21 on wheel hub 2
It is connected between two panels cover board 11, two panels cover board 11 is riveted together in the axial direction by rivet, the week of two cover boards 11 at this time
Edge is close together.Sharp edge inner hollow, and an annular chamber can be formed, when forming body 1 two cover boards 11 and a circular ring shape
Elastomer 4 it is axially stacked together, elastomer 4 matches with annular chamber, the outer surface of elastomer 4 and the inner surface of annular chamber
Fit.
Blade 3 is plugged on body 1 using the radial direction of fixture along body 1 so that blade 3 is radially set along body 1, often
The a piece of blade 3 of assembling, socket 31 are socketed in sharp edge position in a opening 13.After blade 3 assembles, using pressing element from originally
The axial opposite sides of body 1 carries out blade 3 crimping shaping and make it that the clamp 32 on blade 3 passes through card hole 14, and top pressure exists
On the outer surface of elastomer 4.
Claims (9)
1. a kind of water pump vane, including circular body, are equipped with wheel hub at the axial location of body, the peripheral region of body is formed
There is sharp edge, sharp edge diminishes and is formed from opposite sides for the thickness of body, and some blades are evenly equipped with sharp edge position, these
Blade is perpendicular to body, it is characterised in that body is split structure, including two cover boards being coaxially fixed together, two cover boards
Periphery inboard portion is arched upward towards opposite sides respectively, and the outer surface of two cover boards constitutes the outer contour of body, is formed on blade
There is socket, the sharp edge of body is plugged in socket, and blade is connected on two cover boards at the same time.
2. water pump vane according to claim 1, it is characterised in that two cover boards are between sharp edge and wheel hub formed with each other
Concave ring prominent in opposite directions, by rivet from concave ring and two cover board rivet clasps together.
3. water pump vane according to claim 2, it is characterised in that formed with annular between concave ring inside sharp edge
Chamber, is equipped with the elastomer of circular ring shape in annular chamber.
4. water pump vane according to claim 3, it is characterised in that socket is V-shaped, and the opposite sides of socket is formed respectively
There is clamp, two clamps are respectively engaged with the card hole on two cover boards, and clamp is contacted with elastomer phase.
5. water pump vane according to claim 1, it is characterised in that integrally formed with export-oriented convex on the outer circumferential surface of wheel hub
Ring, export-oriented bulge loop are crimped together by two cover boards from opposite sides.
6. water pump vane according to claim 5, it is characterised in that the export-oriented bulge loop is located at the inner end of wheel hub,
The inner face of a cover board and wheel hub therein fits.
7. water pump vane according to any one of claims 1 to 6, it is characterised in that correspond to blade in the sharp edge of body
Opening is equipped with position, blade is plugged in opening.
8. a kind of preparation method of water pump vane, includes the following steps：
Cover board is processed, circular cover board is processed by way of punching press, the inboard portion of cover board periphery is arched upward to side, is being covered
The peripheral region of plate is formed with some uniformly distributed openings；
Process blade, blade processed by impact style, formed with socket on blade, socket opposite sides formed with
Clamp；
Body is formed, two panels cover board is coaxially snapped together, the periphery of two panels cover board is bonded and forms sharp edge, couples wheel hub
Between two panels cover board, two panels cover board is riveted together by rivet；
Blade is assembled, a piece of blade is assembled in each opening, blade is diametrically set, and socket is socketed in sharp edge position,
In the card hole of clamp clamping on the cover board by shaping on blade.
9. preparation method according to claim 8, it is characterised in that formed with annular chamber on the inside of sharp edge, forming this
The elastomer to match with annular chamber is arranged in annular chamber during body, when assembling blade so that the clamp top pressure on blade
On the surface of elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356968.8A CN107939726A (en) | 2017-12-16 | 2017-12-16 | Water pump vane and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356968.8A CN107939726A (en) | 2017-12-16 | 2017-12-16 | Water pump vane and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939726A true CN107939726A (en) | 2018-04-20 |
Family
ID=61943654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711356968.8A Pending CN107939726A (en) | 2017-12-16 | 2017-12-16 | Water pump vane and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931871A (en) * | 2021-06-30 | 2022-01-14 | 重庆市拓富科技有限公司 | Preparation method of coated water pump impeller, impeller structure and application of impeller structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068844A1 (en) * | 2004-01-13 | 2005-07-28 | Jae-Seok Maeng | Improved impeller for self-priming pump, assembly structure thereof and self-priming pump containing the same |
| CN205331040U (en) * | 2016-01-30 | 2016-06-22 | 武召伟 | Stainless steel combination impeller |
| CN107035717A (en) * | 2017-04-14 | 2017-08-11 | 陈星建 | A kind of water pump vane and preparation method thereof |
| CN206397806U (en) * | 2017-01-12 | 2017-08-11 | 赵章序 | The impeller of small pump |
| CN207647834U (en) * | 2017-12-16 | 2018-07-24 | 浙江泰福泵业股份有限公司 | Water pump vane |
-
2017
- 2017-12-16 CN CN201711356968.8A patent/CN107939726A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068844A1 (en) * | 2004-01-13 | 2005-07-28 | Jae-Seok Maeng | Improved impeller for self-priming pump, assembly structure thereof and self-priming pump containing the same |
| CN205331040U (en) * | 2016-01-30 | 2016-06-22 | 武召伟 | Stainless steel combination impeller |
| CN206397806U (en) * | 2017-01-12 | 2017-08-11 | 赵章序 | The impeller of small pump |
| CN107035717A (en) * | 2017-04-14 | 2017-08-11 | 陈星建 | A kind of water pump vane and preparation method thereof |
| CN207647834U (en) * | 2017-12-16 | 2018-07-24 | 浙江泰福泵业股份有限公司 | Water pump vane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931871A (en) * | 2021-06-30 | 2022-01-14 | 重庆市拓富科技有限公司 | Preparation method of coated water pump impeller, impeller structure and application of impeller structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IT1242308B (en) | PUMP BODY PRODUCED BY PRESS FORMING FOR CENTRIFUGAL PUMP | |
| CN204497880U (en) | A kind of iron-shell motor | |
| CN207647834U (en) | Water pump vane | |
| CN107939726A (en) | Water pump vane and preparation method thereof | |
| CN207961044U (en) | Impeller and centrifugal pump with the impeller | |
| CN202503392U (en) | Motor end cover convenient to be installed | |
| US11548163B2 (en) | Grinding package fitted on robotic arm | |
| EP3569356B1 (en) | Grinding package fitted on robotic arm | |
| CN107819381B (en) | Electromagnetic brake mounting structure | |
| CN218817011U (en) | Semi-open impeller stainless steel centrifugal pump | |
| CN216530778U (en) | Brushless motor outer rotor structure | |
| CN209299069U (en) | A kind of radiator of decelerating motor | |
| CN202949310U (en) | Motor end cap | |
| CN204244011U (en) | The modified node method of fan blade | |
| CN218542351U (en) | Variable valve phase actuator | |
| CN205509679U (en) | Brushless motor stator | |
| CN205744591U (en) | Fan blade and air-conditioner | |
| CN217207004U (en) | Novel impeller | |
| CN208311039U (en) | A kind of belt pulley vacuum pump | |
| CN207518382U (en) | A kind of metal blade device that rotor is facilitated to assemble | |
| CN211778173U (en) | Bearing fixing device on water pump | |
| CN217381521U (en) | Motor belt pulley | |
| CN209586775U (en) | Impeller and its water pump of application | |
| CN216343021U (en) | Air inlet structure for clarification plant | |
| CN203809312U (en) | High-efficiency vertical pipeline pump |
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 |