CN108302839A - Air-conditioner system - Google Patents
Air-conditioner system Download PDFInfo
- Publication number
- CN108302839A CN108302839A CN201711474413.3A CN201711474413A CN108302839A CN 108302839 A CN108302839 A CN 108302839A CN 201711474413 A CN201711474413 A CN 201711474413A CN 108302839 A CN108302839 A CN 108302839A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air
- pipeline
- conditioner system
- refrigerant
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Abstract
The invention belongs to air conditioner technical fields, and in particular to a kind of air-conditioning air-conditioner system.In order to improve the heating circulating effect of air conditioner, air-conditioner system of the invention includes the compressor being connected in major loop, indoor heat exchanger, first throttling device and outdoor heat exchanger, and heat exchanger is additionally provided in the major loop；The first pipeline between the side of the heat exchanger and the first throttling device and the indoor heat exchanger is connected, and the second pipeline between the other side of the heat exchanger and the first throttling device and the outdoor heat exchanger is connected；And heat exchange can be carried out in the heat exchanger by the refrigerant of first pipeline and by the refrigerant of second pipeline.The air-conditioner system of the present invention can not only effectively increase the degree of supercooling of the refrigerant in the first pipeline, but also can promote the evaporation of the refrigerant in the second pipeline, to improve the heating capacity of system.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of air-conditioner system.
Background technology
Existing air-conditioner system usually forms refrigerating/heating cycle by condenser, throttling set, evaporator, compressor
The high pressure gaseous refrigerant in circuit, compressor discharge condenses into cryogenic high pressure liquid within the condenser, and through throttling set section
Low temperature and low pressure liquid is flowed into, absorbs heat and evaporates subsequently into evaporator, completes a refrigerating/heating cycle.
For air conditioner in heating operation, the gaseous coolant of high temperature and pressure forms cryogenic high pressure after exchanging heat by condenser
Liquid refrigerants, then pass through throttling set reducing pressure by regulating flow, formed low-temp low-pressure Gas-liquid phase region refrigerant, changed into evaporator
Heat.Disengagement area is bigger, then relative evaporation ability is higher.Wherein, if the liquid refrigerants of cryogenic high pressure continues heat release and can increase
Degree of supercooling, to increase the refrigerated medium heat of system circulation.Refrigerant in heat exchange, 95% or more heat exchange amount from its two
The latent heat of vaporization amount of phase region, and the constant pressure specific heat appearance in unidirectional area's (neat liquid, pure gas) is comparatively small, heat exchange amount accounts for total system and follows
The ratio of ring is small.In addition, pressure drop of the gaseous refrigerant in pipeline is big, it is the main source of system circulation crushing, can increases and follow
Ring amount of work increases the energy consumption of system circulation.
In addition, with reference to Fig. 3, circulation theory figure when Fig. 3 is conventional air conditioner heating operation.As shown in figure 3, air conditioner system
The actual motion temperature spot of heat operation is generally, and A points 70 DEG C of refrigerants of high-temperature gas get in the indoor ring of heat exchanger and 20 DEG C
Border exchanges heat, and temperature is reduced to 30 DEG C, enters throttling set after flowing through online pipe, wherein the temperature between B points and throttling set
Degree (30 DEG C or so) is significantly larger than 7 DEG C of outdoor environment temperature, and waste heat is wasted, if waste heat is absorbed and used, can also increase
The degree of supercooling of system circulation.
Based on this, spy proposes the present invention.
Invention content
In order to solve the above problem in the prior art, in order to improve the heating circulating effect of air conditioner, the present invention carries
The air-conditioner system of confession includes the compressor being connected in major loop, indoor heat exchanger, first throttling device and outdoor heat exchanger,
It is additionally provided with heat exchanger in the major loop；The side of the heat exchanger is changed with the first throttling device and the interior
The first pipeline between hot device is connected, the other side of the heat exchanger and the first throttling device and the outdoor heat exchanger
Between the second pipeline be connected；And by the refrigerant of first pipeline with can be in institute by the refrigerant of second pipeline
It states and carries out heat exchange in heat exchanger.
In the preferred embodiment of above-mentioned air-conditioner system, first pipeline passes through the side of the heat exchanger,
And/or second pipeline passes through the other side of the heat exchanger.
In the preferred embodiment of above-mentioned air-conditioner system, second throttling device, institute are additionally provided in the major loop
It states in the first pipe section of the second throttling device between the heat exchanger and the indoor heat exchanger.
In the preferred embodiment of above-mentioned air-conditioner system, when the air-conditioner system heating operation, described second
Throttling set is shown in a fully open operation, and the first throttling device is used for coolant throttle.
In the preferred embodiment of above-mentioned air-conditioner system, when the air-conditioner system refrigerating operaton, described first
Throttling set is shown in a fully open operation, and the second throttling device is used for coolant throttle.
In the preferred embodiment of above-mentioned air-conditioner system, the compressor is provided with gas-liquid separator, and refrigerant passes through
It is flowed back into after the gas-liquid separator in the compressor.
In the preferred embodiment of above-mentioned air-conditioner system, the air-conditioner system further includes mode-changeover device, institute
Mode-changeover device is stated for switching the air-conditioner system between refrigeration mode and heating mode.
In the preferred embodiment of above-mentioned air-conditioner system, the mode-changeover device is four-way valve.
In the inventive solutions, heat exchanger, and the both sides of the heat exchanger are increased in air-conditioner system
It is connected respectively with the first pipeline and the second pipeline, so, the refrigerant in refrigerant and the second pipeline in the first pipeline can
Heat exchange is carried out at heat exchanger, not only effectively increases the degree of supercooling of the refrigerant in the first pipeline, but also can promote
Into the evaporation of the refrigerant in the second pipeline, to improve the heating capacity of system.In addition, the air conditioner of the present invention also passes through setting
The mode of second throttling device so that air conditioner substitutes first segment when being switched to refrigeration mode, using the second throttling device
Stream device (first throttling device is shown in a fully open operation at this time) throttles to refrigerant, when so as to avoid appearing in refrigeration cycle
The phenomenon that refrigerating capacity is lowered.
Description of the drawings
Fig. 1 is the structure principle chart of the embodiment one of the air-conditioner system of the present invention；
Fig. 2 is the structure principle chart of the embodiment two of the air-conditioner system of the present invention；
Circulation theory figure when Fig. 3 is conventional air conditioner heating operation.
Specific implementation mode
To keep the embodiment of the present invention, technical solution and advantage more obvious, below in conjunction with attached drawing to the skill of the present invention
Art scheme is clearly and completely described, it is clear that and the embodiment described is a part of the embodiment of the present invention, rather than all
Embodiment.It will be apparent to a skilled person that these embodiments are used only for explaining the technical principle of the present invention, and
It is not intended to be limiting protection scope of the present invention.
It is the structure principle chart of the embodiment one of the air-conditioner system of the present invention with reference first to Fig. 1, Fig. 1.As shown in Figure 1,
The air-conditioner system of the present invention includes that the compressor 1 for being connected on major loop, indoor heat exchanger 2, first throttling device 3 and outdoor are changed
Hot device 4 is additionally provided with heat exchanger 5 in the major loop.For convenience of description, by first throttling device 3 and indoor heat exchanger 2
Between pipeline as the first pipeline M, using the pipeline between first throttling device 3 and outdoor heat exchanger 4 as the second pipeline N,
The side of heat exchanger 5 is connected with the first pipeline M, and the other side of heat exchanger 5 is connected with the second pipeline N, as shown in Figure 1
Connection type：First pipeline M passes through the side of heat exchanger 5, the second pipeline N to pass through the other side of heat exchanger N.Also, it is logical
It crosses the refrigerant of the first pipeline M and heat exchange can be carried out in heat exchanger 5 by the refrigerant of the second pipeline N.
In air conditioner heat-production cyclic process, the high pressure gaseous refrigerant that compressor 1 is discharged flows to indoor heat exchanger 2,
Heat exchanger 2 carries out heat exchange indoors, becomes the liquid refrigerants of cryogenic high pressure, refrigerant by reaching C points along the first pipeline M, this
When refrigerant temperature 20 DEG C or so (heat herein is not efficiently used for waste heat).Then, refrigerant is filled by first throttle
Enter the second pipeline N after setting 3 throttlings, the temperature of D points refrigerant (refrigerant after throttling) makees 5 DEG C or so at this time.Due to first
There are the temperature difference for the refrigerant in refrigerant and the second pipeline N in pipeline M, and both pass through heat exchanger 5, so, first
The refrigerant in refrigerant and the second pipeline N in pipeline M carries out heat exchange at heat exchanger 5, not only effectively increases first
The degree of supercooling (i.e. the part refrigerant of C points to first throttling device 3 continues heat release cooling) of refrigerant in pipeline M, but also can
With promote the second pipeline N in refrigerant evaporation (i.e. low temperature refrigerant at D points can be evaporated heat absorption to waste heat at C points, this
Also correspond to increase disengagement area, effectively improve exchange capability of heat), to improve the heating capacity of system.
In air conditioner heat-production operational process, the refrigerant in the first pipeline M enters back into after heat exchanger 5 carries out heat exchange
First throttling device 3 forms the Gas-liquid phase region of D point low-temp low-pressures, compressor 1 is back to using outdoor heat exchanger 4.Pass through
Above-mentioned design can be such that waste heat recycles during air conditioner heat-production is run, to promote the heating capacity of whole system.
It should be noted that heat exchanger 5 above can be a water tank for filling water can also be it is arbitrary other
Suitable form, as long as the refrigerant of 3 upstream and downstream of first throttling device can be made to be exchanged heat.In addition, above-mentioned design
Heating capacity can be promoted effectively for heating cycle, and for reducing refrigerating capacity when refrigeration cycle.
As an example, air-conditioner system of the invention further includes mode-changeover device (such as the four-way valve in Fig. 1
Q), the mode-changeover device between refrigeration mode and heating mode for switching air-conditioner system.
As an example, reference Fig. 2, Fig. 2 is the structure principle chart of the embodiment two of the air-conditioner system of the present invention.Such as
Shown in Fig. 2, second throttling device 6 is additionally provided in the major loop of air-conditioner system of the invention, which is located at
In the first pipeline M sections between heat exchanger 5 and indoor heat exchanger 2.When air conditioner heat-production is run, second throttling device 6
It is shown in a fully open operation, first throttling device 3 is used for coolant throttle.At this time with the principle phase of the air-conditioner system in embodiment one
Together.When air-conditioner system being switched to refrigerating operaton by four-way valve Q, first throttling device 3 is shown in a fully open operation, the second throttling
Device 6 is used for coolant throttle.At this point, the refrigerant of hot 5 both sides of traffic control device is almost without the temperature difference, i.e., heat exchanger 5 is in refrigeration cycle
It does not play a role in the process, entire refrigeration cycle is conventional refrigeration cycle, to avoid refrigerating capacity when reducing refrigerating operaton.
Preferably, referring to Figures 1 and 2, compressor 1 is provided with gas-liquid separator 11, and the gaseous coolant into compressor 1 is first
It after first passing through the gas-liquid separator 11, then is sucked by compressor 1, to open subsequent cycle.
In conclusion heat exchanger is increased in the air-conditioner system of the present invention, and the both sides difference of the heat exchanger
It is connected with the first pipeline and the second pipeline, so, the refrigerant in refrigerant and the second pipeline in the first pipeline can be in warm
Heat exchange is carried out at exchanger, not only effectively increases the degree of supercooling of the refrigerant in the first pipeline, but also can promote the
The evaporation of refrigerant in two pipelines, to improve the heating capacity of system.In addition, the air conditioner of the present invention also passes through setting second
The mode of throttling set so that air conditioner substitutes first throttle when being switched to refrigeration mode, using the second throttling device and fills
It sets (first throttling device is shown in a fully open operation at this time) to throttle to refrigerant, freeze when refrigeration cycle so as to avoid appearing in
The phenomenon that amount is lowered.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (8)
1. a kind of air-conditioner system, including the compressor, indoor heat exchanger, first throttling device and the outdoor that are connected in major loop
Heat exchanger,
It is characterized in that, being additionally provided with heat exchanger in the major loop；
The first pipeline between the side of the heat exchanger and the first throttling device and the indoor heat exchanger is connected, institute
The second pipeline stated between the other side of heat exchanger and the first throttling device and the outdoor heat exchanger is connected；And
Refrigerant by first pipeline can carry out heat with the refrigerant by second pipeline in the heat exchanger
It exchanges.
2. air-conditioner system according to claim 1, which is characterized in that first pipeline passes through the heat exchanger
Side and/or second pipeline pass through the other side of the heat exchanger.
3. air-conditioner system according to claim 2, which is characterized in that be additionally provided with the second throttling dress in the major loop
It sets, in the first pipe section of the second throttling device between the heat exchanger and the indoor heat exchanger.
4. air-conditioner system according to claim 3, which is characterized in that when the air-conditioner system heating operation, institute
It states second throttling device to be shown in a fully open operation, the first throttling device is used for coolant throttle.
5. air-conditioner system according to claim 3, which is characterized in that when the air-conditioner system refrigerating operaton, institute
It states first throttling device to be shown in a fully open operation, the second throttling device is used for coolant throttle.
6. air-conditioner system according to any one of claim 1 to 5, which is characterized in that the compressor is provided with gas
Liquid/gas separator, refrigerant are flowed back into after the gas-liquid separator in the compressor.
7. air-conditioner system according to any one of claim 1 to 5, which is characterized in that the air-conditioner system also wraps
Mode-changeover device is included, the mode-changeover device between refrigeration mode and heating mode for switching the air conditioner system
System.
8. air-conditioner system according to claim 7, which is characterized in that the mode-changeover device is four-way valve.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711474413.3A CN108302839A (en) | 2017-12-29 | 2017-12-29 | Air-conditioner system |
| PCT/CN2018/115750 WO2019128519A1 (en) | 2017-12-29 | 2018-11-15 | Air conditioner system |
| EP18896327.6A EP3734193A4 (en) | 2017-12-29 | 2018-11-15 | Air conditioner system |
| JP2020535566A JP2021508024A (en) | 2017-12-29 | 2018-11-15 | Air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711474413.3A CN108302839A (en) | 2017-12-29 | 2017-12-29 | Air-conditioner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302839A true CN108302839A (en) | 2018-07-20 |
Family
ID=62867620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711474413.3A Pending CN108302839A (en) | 2017-12-29 | 2017-12-29 | Air-conditioner system |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3734193A4 (en) |
| JP (1) | JP2021508024A (en) |
| CN (1) | CN108302839A (en) |
| WO (1) | WO2019128519A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128519A1 (en) * | 2017-12-29 | 2019-07-04 | 青岛海尔空调器有限总公司 | Air conditioner system |
| CN110173913A (en) * | 2019-04-24 | 2019-08-27 | 同济大学 | A kind of steam compressed high temperature heat pump unit of very large super cooling degree |
| CN112428772A (en) * | 2020-10-30 | 2021-03-02 | 三花控股集团有限公司 | Fluid control assembly and thermal management system |
| CN113251474A (en) * | 2021-04-28 | 2021-08-13 | 青岛海尔空调器有限总公司 | Air conditioner with double compressors |
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| CN101268312A (en) * | 2005-09-22 | 2008-09-17 | 大金工业株式会社 | Air conditioner |
| JP2010008002A (en) * | 2008-06-30 | 2010-01-14 | Mitsubishi Electric Corp | Refrigerating cycle apparatus |
| JP2011052884A (en) * | 2009-09-01 | 2011-03-17 | Mitsubishi Electric Corp | Refrigerating air conditioner |
| CN102272534A (en) * | 2009-01-15 | 2011-12-07 | 三菱电机株式会社 | Morimoto osamu [jp]; saito makoto [jp]; yanachi satoru [jp]; yamashita koji |
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| CN107084562A (en) * | 2017-04-13 | 2017-08-22 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner and air conditioner |
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| JPH10141798A (en) * | 1996-11-08 | 1998-05-29 | Denso Corp | Heat pump apparatus |
| WO2014129361A1 (en) * | 2013-02-19 | 2014-08-28 | 三菱電機株式会社 | Air conditioner |
| CN107110577B (en) * | 2015-02-27 | 2019-11-05 | 日立江森自控空调有限公司 | Heat-exchange device and the air conditioner for having the heat-exchange device |
| CN106016505B (en) * | 2016-06-12 | 2019-05-31 | 青岛海尔空调器有限总公司 | Air conditioning circuit board cooling device |
| CN108302839A (en) * | 2017-12-29 | 2018-07-20 | 青岛海尔空调器有限总公司 | Air-conditioner system |
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2017
- 2017-12-29 CN CN201711474413.3A patent/CN108302839A/en active Pending
-
2018
- 2018-11-15 JP JP2020535566A patent/JP2021508024A/en active Pending
- 2018-11-15 WO PCT/CN2018/115750 patent/WO2019128519A1/en unknown
- 2018-11-15 EP EP18896327.6A patent/EP3734193A4/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101268312A (en) * | 2005-09-22 | 2008-09-17 | 大金工业株式会社 | Air conditioner |
| JP2010008002A (en) * | 2008-06-30 | 2010-01-14 | Mitsubishi Electric Corp | Refrigerating cycle apparatus |
| CN102272534A (en) * | 2009-01-15 | 2011-12-07 | 三菱电机株式会社 | Morimoto osamu [jp]; saito makoto [jp]; yanachi satoru [jp]; yamashita koji |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128519A1 (en) * | 2017-12-29 | 2019-07-04 | 青岛海尔空调器有限总公司 | Air conditioner system |
| CN110173913A (en) * | 2019-04-24 | 2019-08-27 | 同济大学 | A kind of steam compressed high temperature heat pump unit of very large super cooling degree |
| CN112428772A (en) * | 2020-10-30 | 2021-03-02 | 三花控股集团有限公司 | Fluid control assembly and thermal management system |
| CN112428772B (en) * | 2020-10-30 | 2023-03-21 | 三花控股集团有限公司 | Fluid control assembly and thermal management system |
| CN113251474A (en) * | 2021-04-28 | 2021-08-13 | 青岛海尔空调器有限总公司 | Air conditioner with double compressors |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021508024A (en) | 2021-02-25 |
| EP3734193A4 (en) | 2021-02-24 |
| EP3734193A1 (en) | 2020-11-04 |
| WO2019128519A1 (en) | 2019-07-04 |
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Application publication date: 20180720 |