CN110094546A - Four-way valve and air-conditioning system - Google Patents
Four-way valve and air-conditioning system Download PDFInfo
- Publication number
- CN110094546A CN110094546A CN201810081134.9A CN201810081134A CN110094546A CN 110094546 A CN110094546 A CN 110094546A CN 201810081134 A CN201810081134 A CN 201810081134A CN 110094546 A CN110094546 A CN 110094546A
- Authority
- CN
- China
- Prior art keywords
- interface
- valve
- pilot valve
- air
- way valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention provides a kind of four-way valve and air-conditioning systems.The four-way valve is used for air-conditioning system, including main valve body (1) and the first pilot valve (2), main valve body (1) includes interface C, interface D, interface E and interface S, first pilot valve (2) includes interface C ', interface D ', interface E ' and interface S ', the interface C ' of first pilot valve (2) drives end by the first spool that the first signal pipe (3) are connected to main valve body (1), the interface E ' of first pilot valve (2) drives end by the second spool that second signal pipe (4) are connected to main valve body (1), the interface S ' of first pilot valve (2) is connected with fourth signal pipe (6), the other end of fourth signal pipe (6) is used for the pipeline being connected between the gas-liquid separator (16) of air-conditioning system and the air entry of compressor (14).Four-way valve according to the present invention can effectively avoid the spool of four-way valve from driving end end that hydrops occurs, guarantee the switching efficiency of four-way valve.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of four-way valve and air-conditioning system.
Background technique
Four-way valve is arranged in heat pump type air conditioner system, for changing the flow direction of refrigerant, realizes refrigeration, heating switching
Purpose defrost is used for by four-way Vavle switching and when heating mould.
Four-way valve generally passes through pilot valve and is adjusted to the position of spool, pilot valve tool there are four interface, D ', E ', C ',
And S ', there are four interfaces for four-way valve tool, and D, E, C, S, wherein interface C ' is connected to the first valve of four-way valve by the first signal pipe
Core drives end, and interface E ' drives end by the second spool that second signal pipe is connected to four-way valve, and interface D ' passes through third signal
Pipe is connected to interface D, and interface S ' is connected at the port of interface S by fourth signal pipe.
When system defrost, a large amount of high pressure liquid refrigerants are stored up in storage in air side heat exchanger, and defrost terminates, and four-way valve is cut
It changes, when piston is moved to cylinder interlude, high pressure liquid refrigerant is back to S through C pipe and manages, again by the 4th in air side heat exchanger
Signal pipe, pilot valve, the first signal pipe to A chamber, make A chamber hydrops, because being discharged when liquid refrigerant is incompressible and unreachable, make
Four-way valve switching time is elongated, leads to unit low pressure difference alarming machine halt trouble.
Summary of the invention
The object of the present invention is to provide a kind of four-way valve and air-conditioning systems, and the spool of four-way valve can effectively be avoided to drive end
Hydrops occurs for end, guarantees the switching efficiency of four-way valve.
In order to solve the above technical problems, providing a kind of four-way valve as one aspect of the present invention, it to be used for air-conditioning system
System, including main valve body and the first pilot valve, main valve body include interface C, interface D, interface E and interface S, and the first pilot valve includes connecing
Mouth C ', interface D ', interface E ' and interface S ', the interface C ' of the first pilot valve are connected to the first of main valve body by the first signal pipe
Spool drives end, and the interface E ' of the first pilot valve is connected to the second spool driving end of main valve body by second signal pipe, and first
The interface S ' of pilot valve is connected with fourth signal pipe, and the other end of fourth signal pipe is used to be connected to the gas-liquid separation of air-conditioning system
On pipeline between device and the air entry of compressor.
Four-way valve of the invention, since the interface S ' of the first pilot valve is connected to gas-liquid separator and the compression of air-conditioning system
It on pipeline between the air entry of machine, rather than is to be connected on the interface S of main valve body, therefore terminate to carry out in air-conditioning system defrost
When the main valve body switching of four-way valve, during high pressure liquid refrigerant is back to S pipe through C pipe in air side heat exchanger, Wu Fajing
The first spool that fourth signal pipe, the first pilot valve and the first signal pipe flow into main valve body drives end, through fourth signal pipe, first
The first spool driving end that pilot valve and the first signal pipe flow into main valve body is cold for the gaseous state after gas-liquid separator gas-liquid separation
Matchmaker, therefore the hydrops problem at the first spool driving end would not be caused, it can effectively avoid the spool of four-way valve from driving end end
Hydrops occurs, guarantees the switching efficiency of four-way valve.
Detailed description of the invention
Fig. 1 diagrammatically illustrates the structure principle chart of the air-conditioning system of the embodiment of the present invention；
Fig. 2 diagrammatically illustrates the working principle diagram of the air-conditioning system of first embodiment of the invention；
Fig. 3 diagrammatically illustrates the working principle diagram of the air-conditioning system of second embodiment of the invention.
1, main valve body；2, the first pilot valve；3, the first signal pipe；4, second signal pipe；5, third signal pipe；6, the 4th letter
Number pipe；7, the 5th signal pipe；8, the 6th signal pipe；9, the 7th signal pipe；10, the 8th signal pipe；11, the second pilot valve；12, room
Interior heat exchanger；13, outdoor heat exchanger；14, compressor；15, throttling set；16, gas-liquid separator；17, four-way valve；18, liquid storage
Device；19, the first check valve；20, second one-way valve；21, third check valve；22, the 4th check valve；23, device for drying and filtering；24,
Throttle valve.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
In conjunction with referring to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, four-way valve is used for air-conditioning system, the four-way valve packet
Main valve body 1 and the first pilot valve 2 are included, main valve body 1 includes interface C, interface D, interface E and interface S, and the first pilot valve 2 includes connecing
The interface C ' of mouth C ', interface D ', interface E ' and interface S ', the first pilot valve 2 are connected to main valve body 1 by the first signal pipe 3
First spool drives end, and the interface E ' of the first pilot valve 2 is connected to the second spool driving of main valve body 1 by second signal pipe 4
End, the interface S ' of the first pilot valve 2 are connected with fourth signal pipe 6, and the other end of fourth signal pipe 6 is for being connected to air-conditioning system
Gas-liquid separator 16 and compressor 14 air entry between pipeline on.
The gas-liquid separator 16 of air-conditioning system and the air entry of compressor 14 are connected to due to the interface S ' of the first pilot valve 2
Between pipeline on, rather than be to be connected on the interface S of main valve body 1, therefore terminate to carry out four-way valve in air-conditioning system defrost
It, can not be through the during high pressure liquid refrigerant is back to S pipe through C pipe in air side heat exchanger when the direction switching of main valve body 1
The first spool that four signal pipes 6, the first pilot valve 2 and the first signal pipe 3 flow into main valve body 1 drives end, can be through fourth signal
The first spool driving end that pipe 6, the first pilot valve 2 and the first signal pipe 3 flow into main valve body 1 is through 16 gas-liquid of gas-liquid separator point
Gaseous coolant from after, therefore the hydrops problem at the first spool driving end would not be caused, it can effectively avoid the valve of four-way valve
Core drives end end that hydrops occurs, and guarantees the switching efficiency of four-way valve.
Preferably, interface C, interface D, interface E and interface S arrange in cross；And/or interface C ', interface D ', interface
E ' and interface S ' arranges in cross.
In conjunction with shown in Figure 2, first embodiment according to the present invention, the first pilot valve 2 is solenoid valve, can be by the
One pilot valve 2 controls the state switching of main valve body 1, controls simple and convenient.Electromagnetism is adjusted to due to the first pilot valve 2
It adjusts, therefore not will receive the influence of refrigerant pressure, can be improved adjusting efficiency.
In conjunction with shown in Figure 3, second embodiment according to the present invention, four-way valve further includes the second pilot valve 11, and second
Pilot valve 11 is used to control the spool position of the first pilot valve 2.
Second pilot valve 11 is solenoid valve, and the first pilot valve 2 is pilot operated valve device, and controls the first guide by the second pilot valve 11
The spool position of valve 2, the second pilot valve 11 include interface C ", interface D ", interface E " and interface S ", the interface of the second pilot valve 11
C " drives end by the first spool that the 5th signal pipe 7 is connected to the first pilot valve 2, and the interface E " of the second pilot valve 11 passes through the
Six signal pipes 8 are connected to the second spool driving end of the first pilot valve 2, and the interface D " of the second pilot valve 11 passes through the 7th signal pipe
9 are connected to the D ' of the first pilot valve 2.
The interface S " of second pilot valve 11 is connected to the interface S ' of the first pilot valve 2 by the 8th signal pipe 10；Or, second
The interface S " of pilot valve 11 is used to be connected to the gas-liquid separator 16 and compressor 14 of air-conditioning system by the 8th signal pipe 10
On pipeline between air entry.When the interface S " of the second pilot valve 11 is used to be connected to air-conditioning system by the 8th signal pipe 10
When on the pipeline between gas-liquid separator 16 and the air entry of compressor 14, since the first pilot valve 11 is also with refrigerant pressure
The position of spool is adjusted, it can thus be avoided hydrops phenomenon occurs for the spool driving end side of the first pilot valve 11, is kept away
Exempt from switching delay occurs problem, improves flexibility and reliability that the commutation of the first pilot valve 11 is adjusted.
In conjunction with referring to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, air-conditioning system include indoor heat exchanger 12, it is outdoor
Heat exchanger 13, compressor 14, throttling set 15, gas-liquid separator 16 and four-way valve 17, the four-way valve 17 are above-mentioned four-way valve,
One end of the fourth signal pipe 6 of four-way valve 17 is connected to the interface S ' of the first pilot valve 2, and the other end is connected to gas-liquid separator 16
On pipeline between the air entry of compressor 14.
In the present embodiment, air-conditioning system further includes liquid storage device 18, the first check valve 19, second one-way valve 20, third list
To valve 21 and the 4th check valve 22, wherein the first check valve 19 and third check valve 21 form the first series pipe, second is unidirectional
Valve 20 and the 4th check valve 22 form the second series pipe, and the first series pipe and the second series pipe are in parallel, outdoor heat exchanger
13 are connected between the first check valve 19 and the 4th check valve 22, and indoor heat exchanger 12 is connected to second one-way valve 20 and third list
To between valve 21, the air inlet of liquid storage device 18 is connected between the first check valve 19 and second one-way valve 20, the liquid of liquid storage device 18
Body outlet is connected between third check valve 21 and the 4th check valve 22.Liquid storage device 18 can receive from condenser condensing heat-exchange it
Gaseous state, liquid or mixing refrigerant afterwards, are then discharged liquid refrigerants from the liquid outlet of liquid storage device 18, guarantee the liquefaction effect of refrigerant
Fruit guarantees that the refrigerant being discharged from liquid storage device 18 for pure liquid refrigerants, improves the energy storage effect of refrigerant, improves the heat exchange amount of refrigerant,
Improve the refrigeration or heating effect of refrigerant.
Due to the presence of four check valves, when air-conditioning system is in refrigerating state, when refrigerant is flowed from outdoor heat exchanger 13
It after out, can enter in liquid storage device 18 by wherein the first check valve 19 from the air inlet of liquid storage device 18, make in the pressure of refrigerant
Under, the liquid refrigerants in liquid storage device 18 is flowed out from the liquid outlet of liquid storage device 18, flows to interior through third check valve 21
It exchanges heat in heat exchanger 12, freezes to interior, the refrigerant after being exchanged heat with indoor heat exchanger 12 is through four-way valve
After interface E and interface S, gas-liquid separation is carried out in gas-liquid separator 16, is back to the air entry of compressor 14 later.In air-conditioning
When system is in heating state, refrigerant initially enters indoor heat exchanger 12, is changed in heat exchanger 12 with room air indoors
Heat heats room air, can be by wherein second one-way valve 20 from storage after refrigerant is flowed out from indoor heat exchanger 12
The air inlet of liquid device 18 enters in liquid storage device 18, and under the pressure effect of refrigerant, liquid refrigerants in liquid storage device 18 is from liquid storage device
18 liquid outlet outflow, flows in outdoor heat exchanger 13 through the 4th check valve 22 and exchanges heat, with outdoor heat exchanger 13
Refrigerant after being exchanged heat carries out gas-liquid separation, later after the interface C of four-way valve and interface S in gas-liquid separator 16
It is back to the air entry of compressor 14.
The liquid outlet tube road of liquid storage device 18 is provided with device for drying and filtering 23 and solenoid valve, can be to from 18 row of liquid storage device
Filtering is dried in liquid refrigerants out, avoids carrying other impurity in refrigerant flow process, guarantees the clarity of refrigerant, mention
Heat exchange efficiency between high refrigerant and heat exchanger.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of four-way valve is used for air-conditioning system, which is characterized in that including main valve body (1) and the first pilot valve (2), the master
Valve body (1) includes that interface C, interface D, interface E and interface S, first pilot valve (2) include interface C ', interface D ', interface E '
The first of the main valve body (1) is connected to by the first signal pipe (3) with the interface C ' of interface S ', first pilot valve (2)
Spool drives end, and the interface E ' of first pilot valve (2) is connected to the of the main valve body (1) by second signal pipe (4)
Two spools drive end, and the interface S ' of first pilot valve (2) is connected with fourth signal pipe (6), the fourth signal pipe (6)
The other end is used for the pipeline being connected between the gas-liquid separator (16) of air-conditioning system and the air entry of compressor (14).
2. four-way valve according to claim 1, which is characterized in that first pilot valve (2) is solenoid valve.
3. four-way valve according to claim 1, which is characterized in that the four-way valve further includes the second pilot valve (11), institute
The second pilot valve (11) are stated for controlling the spool position of first pilot valve (2).
4. four-way valve according to claim 3, which is characterized in that second pilot valve (11) is solenoid valve, described the
Two pilot valves (11) include interface C ", interface D ", interface E " and interface S ", and the interface C " of second pilot valve (11) passes through the
Five signal pipes (7) are connected to the first spool driving end of first pilot valve (2), the interface E " of second pilot valve (11)
End is driven by the second spool that the 6th signal pipe (8) is connected to first pilot valve (2), second pilot valve (11)
Interface D " is connected to the D ' of first pilot valve (2) by the 7th signal pipe (9).
5. four-way valve according to claim 4, which is characterized in that the interface S " of second pilot valve (11) passes through the 8th
Signal pipe (10) is connected to the interface S ' of first pilot valve (2)；Or, the interface S " of second pilot valve (11) is for leading to
Cross the pipeline that the 8th signal pipe (10) is connected between the gas-liquid separator (16) of air-conditioning system and the air entry of compressor (14)
On.
6. four-way valve according to claim 1, which is characterized in that interface C, interface D, interface E and interface S are arranged in cross
Cloth；And/or interface C ', interface D ', interface E ' and interface S ' arrange in cross.
7. a kind of air-conditioning system, including indoor heat exchanger (12), outdoor heat exchanger (13), compressor (14), throttling set (15),
Gas-liquid separator (16) and four-way valve (17), which is characterized in that the four-way valve (17) is any one of claims 1 to 6 institute
The four-way valve stated, one end of the fourth signal pipe (6) of the four-way valve (17) are connected to the interface of first pilot valve (2)
S ', the other end are connected on the pipeline between the gas-liquid separator (16) and the air entry of the compressor (14).
8. air-conditioning system according to claim 7, which is characterized in that the air-conditioning system further includes liquid storage device (18),
One check valve (19), second one-way valve (20), third check valve (21) and the 4th check valve (22), wherein the first check valve (19)
The first series pipe is formed with third check valve (21), second one-way valve (20) and the 4th check valve (22) form the second tandem tube
Road, the first series pipe and the second series pipe are in parallel, and the outdoor heat exchanger (13) is connected to first check valve (19)
Between the 4th check valve (22), the indoor heat exchanger (12) is connected to the second one-way valve (20) and the third
Between check valve (21), the air inlet of the liquid storage device (18) is connected to first check valve (19) and the second one-way valve
(20) between, the liquid outlet of the liquid storage device (18) is connected to the third check valve (21) and the 4th check valve (22)
Between.
9. air-conditioning system according to claim 8, which is characterized in that the liquid outlet tube road of the liquid storage device (18) is set
It is equipped with device for drying and filtering (23) and solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081134.9A CN110094546B (en) | 2018-01-27 | 2018-01-27 | Four-way valve and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081134.9A CN110094546B (en) | 2018-01-27 | 2018-01-27 | Four-way valve and air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110094546A true CN110094546A (en) | 2019-08-06 |
| CN110094546B CN110094546B (en) | 2022-06-07 |
Family
ID=67442064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081134.9A Active CN110094546B (en) | 2018-01-27 | 2018-01-27 | Four-way valve and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094546B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03260529A (en) * | 1990-03-09 | 1991-11-20 | Matsushita Refrig Co Ltd | Airconditioning apparatus |
| JP2001208224A (en) * | 2000-01-21 | 2001-08-03 | Ranco Japan Ltd | Four-way control valve |
| CN101520216A (en) * | 2009-03-25 | 2009-09-02 | 珠海天济能源科技有限公司 | Air conditioner water heater |
| CN101839588A (en) * | 2010-05-27 | 2010-09-22 | 无锡同方人工环境有限公司 | High-temperature water outlet and total heat recovery triple co-generation machine set |
| CN201925524U (en) * | 2011-01-17 | 2011-08-10 | 东莞市瑞星空调设备有限公司 | Three-way reversing valve of coolant system |
| CN102537413A (en) * | 2010-12-20 | 2012-07-04 | 陈则韶 | Three-way valve with electromagnetic pilot sliding valve for air-conditioner water heater |
| CN203518332U (en) * | 2013-10-10 | 2014-04-02 | 珠海格力电器股份有限公司 | Heat recovery system and heat recovery unit with same |
| CN104819591A (en) * | 2015-04-24 | 2015-08-05 | 河南佰衡节能技术有限公司 | Agricultural local product heating pump drying device with refrigeration function |
-
2018
- 2018-01-27 CN CN201810081134.9A patent/CN110094546B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03260529A (en) * | 1990-03-09 | 1991-11-20 | Matsushita Refrig Co Ltd | Airconditioning apparatus |
| JP2001208224A (en) * | 2000-01-21 | 2001-08-03 | Ranco Japan Ltd | Four-way control valve |
| CN101520216A (en) * | 2009-03-25 | 2009-09-02 | 珠海天济能源科技有限公司 | Air conditioner water heater |
| CN101839588A (en) * | 2010-05-27 | 2010-09-22 | 无锡同方人工环境有限公司 | High-temperature water outlet and total heat recovery triple co-generation machine set |
| CN102537413A (en) * | 2010-12-20 | 2012-07-04 | 陈则韶 | Three-way valve with electromagnetic pilot sliding valve for air-conditioner water heater |
| CN201925524U (en) * | 2011-01-17 | 2011-08-10 | 东莞市瑞星空调设备有限公司 | Three-way reversing valve of coolant system |
| CN203518332U (en) * | 2013-10-10 | 2014-04-02 | 珠海格力电器股份有限公司 | Heat recovery system and heat recovery unit with same |
| CN104819591A (en) * | 2015-04-24 | 2015-08-05 | 河南佰衡节能技术有限公司 | Agricultural local product heating pump drying device with refrigeration function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110094546B (en) | 2022-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100677266B1 (en) | Multi-air conditioner capable of cooling and heating simultaneously | |
| CN105299956B (en) | Compressor oil return control device and method and air conditioner with device | |
| WO2015188656A1 (en) | Two-stage compression air conditioning system and control method thereof | |
| US8424333B2 (en) | Air conditioner | |
| US10082323B2 (en) | Air conditioner with user control between simultaneous heating and cooling operation and alternating heating and cooling operation | |
| KR101712213B1 (en) | Multi type air conditiner and method of controlling the same | |
| EP3377831A1 (en) | Heat pump with ejector | |
| CN103759455A (en) | Heat recovery variable-frequency multi-split heat pump system and control method thereof | |
| CN104180442B (en) | Air conditioning system | |
| JP2015209979A (en) | Air conditioner | |
| CN109708216A (en) | Modular multi-split air conditioning system and control method thereof | |
| EP3842711B1 (en) | Air conditioning apparatus | |
| CN104236155B (en) | Have that coolant is supercool, the defrosting air conditioning system of heat-production functions and control method thereof | |
| CN103822401A (en) | Air conditioner and heat exchange system thereof | |
| CN110131914B (en) | Four-way valve and air conditioning system | |
| JP6252332B2 (en) | Refrigeration equipment | |
| CN105091392B (en) | Heat recovery multi-split system and control method thereof | |
| JP2010085022A (en) | Refrigerating device | |
| KR101996057B1 (en) | Air conditioner | |
| CN110094546A (en) | Four-way valve and air-conditioning system | |
| KR101700043B1 (en) | Air conditioning system | |
| CN110220324A (en) | Four-way valve and air-conditioning system | |
| KR102078278B1 (en) | Air condtioner | |
| CN109237645A (en) | Air conditioning system and control method thereof | |
| CN103791590A (en) | Method for VRV air conditioner outdoor heat exchange and dispersion in refrigeration mode |
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 |