CN103052304A - Server cabinet cooling system - Google Patents
Server cabinet cooling system Download PDFInfo
- Publication number
- CN103052304A CN103052304A CN2012105456755A CN201210545675A CN103052304A CN 103052304 A CN103052304 A CN 103052304A CN 2012105456755 A CN2012105456755 A CN 2012105456755A CN 201210545675 A CN201210545675 A CN 201210545675A CN 103052304 A CN103052304 A CN 103052304A
- Authority
- CN
- China
- Prior art keywords
- server cabinet
- water
- cooling system
- heat exchanger
- cabinet
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000002826 coolant Substances 0.000 claims description 26
- 238000009833 condensation Methods 0.000 claims description 14
- 230000005494 condensation Effects 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004378 air conditioning Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009290 primary effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a server cabinet cooling system which comprises a liquid cooling tank arranged in a server cabinet, a water-cooled heat sink in the server cabinet, an air radiator in the cabinet, a first liquid storage tank and an outdoor external cooling system, wherein the liquid cooling tank comprises a finned heat exchanger, a plate-type heat exchanger and a first water pump which are integrated in a tank; the hot water side of the plate-type heat exchanger, the first water pump, the first liquid storage tank and the water-cooled heat sink in the server cabinet are connected into a first circulation loop by virtue of pipelines; and the external cooling system, the air radiator in the cabinet, the finned heat exchanger and the cold water side of the plate-type heat exchanger are connected into a second circulation loop through pipelines. The server cabinet cooling system is simple in structure, realizable in modular production and convenient in installation, can be used for not only respectively cooling each server cabinet without local heat gathering, but also avoiding outputting heat into the cabinet, is high in cooling efficiency, and can be used for achieving an energy-saving effect.
Description
Technical field
The present invention relates to a kind of for the server cabinet cooling system, particularly a kind of to server cabinet not quantity of heat given up and the cooling system can large-scale production installed.
Background technology
Along with the fast development of supercomputer technology, the server cabinet with high heat flux is widely used in the supercomputer field, and traditional air-conditioning concentrates air-supply can not satisfy its heat radiation requirement.Because the quantity of server cabinet is more and more, rack is arranged more and more intensive, the cold air that Cooling Air-conditioning System blows out can't fully flow to machine room everywhere at all, causes hot-air to concentrate on easily the specific region, certainly can cause the unstable of server cabinet system.The heat radiation that to also have a deficiency be exactly air-conditioning can only be kept the ambient temperature of rack outside, and the heat that produces in the cabinet is only played very faint effect.
Summary of the invention
The objective of the invention is provides a kind of modular cooling system for server cabinet.
For addressing the above problem, the technical solution used in the present invention is:
A kind of server cabinet cooling system, comprise the liquid cooling case that places server cabinet inside, water-filled radiator in the server cabinet, air radiator in the cabinet, the first liquid reserve tank and place outdoor external condensation system, described liquid cooling case comprises the finned heat exchanger that is integrated in the case, plate heat exchanger and the first water pump, described plate heat exchanger hot water side, the first water pump, water-filled radiator connects into the first circulation circuit by pipeline in the first liquid reserve tank and the server cabinet, described external condensation system, air radiator in the cabinet, finned heat exchanger and plate heat exchanger cold water side connect into the second circulation circuit by pipeline
Coolant in described the second circulation circuit is taken away the heat of coolant in the first circulation circuit by plate heat exchanger.
Described finned heat exchanger is for the coolant of heat transferred the first circulation circuit that liquid cooling case internal cause the first water pump operation is gathered, and then the coolant that passes through in the second circulation circuit cools off;
Air radiator is used for the auxiliary heat dissipation of rack in the described cabinet, the heat of cabinet inner accumulated can be passed to coolant in the second circulation circuit by air radiator, and then cool off by external condensation system;
Described external condensation system is used for the coolant of continual cooling the second circulation circuit;
Described the first liquid reserve tank plays the effect of retaining and buffering.
In order better to realize the present invention, described liquid cooling case has air admission hole and venthole.
In order better to realize the present invention, described the first circulation circuit is in series with valve with electrically motorized operation, is used for regulating the flow of the first circulation circuit.
In order better to realize the present invention, described the first water pump is parallel with the bypass valve with electrically motorized operation, is used for regulating the flow of the second circulation circuit.
In order better to realize the present invention, described second servo loop is in series with filter, is used for removing the impurity of coolant.
In order better to realize the present invention, described liquid cooling case is installed in the rack bottom by track, forms drawing and pulling type liquid cooling case.
In order better to realize the present invention, water-filled radiator is parallel with one another in the described server cabinet, and water-filled radiator is in series with flow balance valve in each server cabinet.
In order better to realize the present invention, described external condensation system comprises the second water pump, outdoor air radiator, the second liquid reserve tank and handpiece Water Chilling Units.Outdoor air radiator and handpiece Water Chilling Units are divided the primary and secondary effect according to ambient temperature is different, and when ambient temperature was higher, handpiece Water Chilling Units played main cooling effect, and the outdoor air radiator plays the auxiliary temperature-reducing effect; When outdoor temperature was low, handpiece Water Chilling Units played auxiliary temperature-reducing, and the outdoor air radiator plays main cooling.
In order better to realize the present invention, described the first circulation circuit coolant and second servo loop coolant are the mixed liquor of pure water or pure water and anti-icing fluid.
The present invention compared with prior art, have following advantage and beneficial effect: a kind of server cabinet cooling system structure of the present invention is simple, can realize modularization production, easy for installation, this cooling system not only can cool off respectively each server cabinet, and heat can locally not assembled, and can be to the interior of equipment cabinet quantity of heat given up, cooling effectiveness is high, thereby reaches energy-conservation effect.
Description of drawings
Fig. 1 is the embodiment of the invention 1 described a kind of server cabinet cooling system schematic diagram;
Fig. 2 is the embodiment of the invention 1 described a kind of server cabinet cooling system liquid cooling box structure figure.
Embodiment
As shown in Figures 1 and 2, a kind of server cabinet cooling system comprises the liquid cooling case 1 that places server cabinet 6 inside, water-filled radiator 2-1 in the server cabinet, 2-2 and 2-3, air radiator 3 in the cabinet, the first liquid reserve tank 4 and place outdoor external condensation system 5, described liquid cooling case 1 comprises the finned heat exchanger 1-1 that is integrated in the case, plate heat exchanger 1-2, the first water pump 1-3, valve with electrically motorized operation 1-4, bypass valve with electrically motorized operation 1-5, filter 1-6, air admission hole 1-7 and venthole 1-8, described plate heat exchanger 1-2 hot water side, filter 1-6, the first water pump 1-3, water-filled radiator 3 connects into the first circulation circuit by pipeline in the first liquid reserve tank 4 and the server cabinet, the first water pump 1-3 is parallel with bypass valve with electrically motorized operation 1-5, described external condensation system 5, air radiator 3 in the cabinet, finned heat exchanger 1-1, plate heat exchanger 1-2 cold water side and valve with electrically motorized operation 1-4 connect into the second circulation circuit by pipeline, water-filled radiator 2-1 in the server cabinet, 2-2 and 2-3 are parallel with one another, water-filled radiator 2-1 is connected with flow balance valve 7-1 in the server cabinet, water-filled radiator 2-2 is connected with flow balance valve 7-2, water-filled radiator 2-3 is connected with flow balance valve 7-3, and described external condensation system 5 comprises the second water pump 5-1, outdoor air radiator 5-2, the second liquid reserve tank 5-3 and handpiece Water Chilling Units 5-4.
Described liquid cooling case is installed in the rack bottom by track, forms drawing and pulling type liquid cooling case.
Described the first circulation circuit coolant and second servo loop coolant are the mixed liquor of pure water or pure water and anti-icing fluid.
The first circulation circuit: water-filled radiator is collected a large amount of heats in the server cabinet from server electronic components, heat is delivered in the coolant of the first circulation circuit, about 50 ℃ of water temperature, coolant is extracted in the liquid cooling case by the first water pump, carry out heat exchange with cooling water about 16 ℃ in the plate heat exchanger, be sent in the first liquid reserve tank from the coolant of 34 ℃ of liquid cooling case outlets, then pressurized and delivering to respectively in each server cabinet in the water-filled radiator in case carries out next time cycling hot exchange.The enclosed positive pressure system is adopted in this loop, and coolant does not contact with the external world after treatment, not contaminated can recycling for a long time.Quantity of heat production is if not at full capacity the time, the hot water temperature may be less than 50 ℃, and the leaving water temperature of water-filled radiator may be lower than 34 ℃ of ideal temperatures in the server cabinet; At this moment by adjusting the open degree of bypass valve with electrically motorized operation, control discharge, thereby reach 34 ℃.
The second circulation circuit: the coolant leaving water temperature of outdoor external condensation system is 16 ℃, be pressed in the plate heat exchanger of liquid cooling case, the heat of the first circulation circuit is taken out of, and coolant temperature rises to 38 ℃, again enters plate heat exchanger after the process external condensation system is cooled to 16 ℃.When the leaving water temperature of the coolant of external condensation system is lower than 16 ℃ (14 ℃ ~ 15 ℃), adjust flow by the regulating electric valve, thereby control the accuracy of the first cooling circuit leaving water temperature.
Liquid cooling case internal heat dissipating: the liquid cooling case is inner because the long-time running of the first water pump can be gathered certain heat, by the finned heat exchanger of liquid cooling case inside, this part heat can be delivered to coolant, and then cool off by coolant.
The auxiliary heat dissipation of rack: the heat that the large power, electrically sub-element produces in the server cabinet, about 70% is collected and is taken out of by water-filled radiator in the server cabinet; About 30% heat is stayed its temperature is higher than more than 55 ℃, if all by the room air conditioner burden, then expense is very large, and causes the room temperature skewness.From the liquid cooling case out about 32 ℃ coolant enter air radiator in the cabinet, air carries out heat exchange in coolant and the cabinet, and about 40 ℃ warm air is blown in the electronic component, makes the interior temperature stabilization of rack about 44 ℃, thereby alleviates the burden of room air conditioner.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. server cabinet cooling system, it is characterized in that: comprise the liquid cooling case that places server cabinet inside, water-filled radiator in the server cabinet, air radiator in the cabinet, the first liquid reserve tank and place outdoor external condensation system, described liquid cooling case comprises the finned heat exchanger that is integrated in the case, plate heat exchanger and the first water pump, described plate heat exchanger hot water side, the first water pump, water-filled radiator connects into the first circulation circuit by pipeline in the first liquid reserve tank and the server cabinet, described external condensation system, air radiator in the cabinet, finned heat exchanger and plate heat exchanger cold water side connect into the second circulation circuit by pipeline
Coolant in described the second circulation circuit is taken away the heat of coolant in the first circulation circuit by plate heat exchanger.
2. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described liquid cooling case has air admission hole and venthole.
3. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described the first circulation circuit is in series with valve with electrically motorized operation.
4. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described the first water pump is parallel with the bypass valve with electrically motorized operation.
5. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described second servo loop is in series with filter.
6. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described liquid cooling case is installed in the rack bottom by track, forms drawing and pulling type liquid cooling case.
7. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: water-filled radiator is parallel with one another in the described server cabinet, and water-filled radiator is in series with flow balance valve in each server cabinet.
8. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described external condensation system comprises the second water pump, outdoor air radiator, the second liquid reserve tank and handpiece Water Chilling Units.
9. described a kind of server cabinet cooling system according to claim 1, it is characterized in that: described the first circulation circuit coolant and second servo loop coolant are the mixed liquor of pure water or pure water and anti-icing fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105456755A CN103052304A (en) | 2012-12-14 | 2012-12-14 | Server cabinet cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105456755A CN103052304A (en) | 2012-12-14 | 2012-12-14 | Server cabinet cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103052304A true CN103052304A (en) | 2013-04-17 |
Family
ID=48064749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105456755A Pending CN103052304A (en) | 2012-12-14 | 2012-12-14 | Server cabinet cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103052304A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336567A (en) * | 2013-07-17 | 2013-10-02 | 曙光信息产业(北京)有限公司 | Cooling distribution module and server rack |
| CN103458660A (en) * | 2013-08-29 | 2013-12-18 | 合肥天鹅制冷科技有限公司 | Airborne liquid cooling system used for airplane load refrigeration |
| CN104144596A (en) * | 2014-07-17 | 2014-11-12 | 合肥天鹅制冷科技有限公司 | Airborne liquid cooling system |
| CN104244670A (en) * | 2013-06-14 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Container type server combination |
| CN104703451A (en) * | 2015-03-31 | 2015-06-10 | 广东申菱空调设备有限公司 | Double-effect type server radiating device combining liquid cooling and frozen water air cooling systems |
| CN107564263A (en) * | 2017-11-01 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | A kind of GPRS wireless data transmissions mode |
| CN107705538A (en) * | 2017-11-01 | 2018-02-16 | 国网江苏省电力公司南通供电公司 | A kind of GPRS radio data transmission methods |
| CN107771015A (en) * | 2017-11-29 | 2018-03-06 | 郑州云海信息技术有限公司 | A kind of data center |
| WO2018133158A1 (en) * | 2017-01-18 | 2018-07-26 | 广东合一新材料研究院有限公司 | Circulation cooling system |
| CN110278691A (en) * | 2019-07-01 | 2019-09-24 | 北京航空航天大学 | Pump-Driven Two-Phase Loop Cooling System for High Power Density Cabinets |
| CN110913656A (en) * | 2019-11-16 | 2020-03-24 | 珠海格力智能装备有限公司 | Heat dissipation system and heat dissipation method of robot electric cabinet |
| CN111526694A (en) * | 2019-02-02 | 2020-08-11 | 北京百度网讯科技有限公司 | Liquid cooling systems and server cabinets for server cabinets |
| WO2020186859A1 (en) * | 2019-03-15 | 2020-09-24 | 广州高澜节能技术股份有限公司 | Drawer-type cdu |
| CN117062411A (en) * | 2020-05-29 | 2023-11-14 | Ovh公司 | Cooling structure and cooling system including the cooling structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201700120U (en) * | 2010-06-08 | 2011-01-05 | 中山大学 | A two-phase natural circulation heat dissipation system based on board-type heat exchange of communication cabinets |
| US20120113584A1 (en) * | 2010-11-05 | 2012-05-10 | Inventec Corporation | Cooling system for server and cooling method for electronic apparatus |
| CN102548362A (en) * | 2011-12-29 | 2012-07-04 | 中兴通讯股份有限公司 | Water-cooling radiating system |
| US20120218711A1 (en) * | 2008-02-13 | 2012-08-30 | Hitachi Plant Technologies, Ltd. | Cooling system for electronic equipment |
| CN203219665U (en) * | 2012-12-14 | 2013-09-25 | 广州高澜节能技术股份有限公司 | Cooling system for a server cabinet |
-
2012
- 2012-12-14 CN CN2012105456755A patent/CN103052304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120218711A1 (en) * | 2008-02-13 | 2012-08-30 | Hitachi Plant Technologies, Ltd. | Cooling system for electronic equipment |
| CN201700120U (en) * | 2010-06-08 | 2011-01-05 | 中山大学 | A two-phase natural circulation heat dissipation system based on board-type heat exchange of communication cabinets |
| US20120113584A1 (en) * | 2010-11-05 | 2012-05-10 | Inventec Corporation | Cooling system for server and cooling method for electronic apparatus |
| CN102548362A (en) * | 2011-12-29 | 2012-07-04 | 中兴通讯股份有限公司 | Water-cooling radiating system |
| CN203219665U (en) * | 2012-12-14 | 2013-09-25 | 广州高澜节能技术股份有限公司 | Cooling system for a server cabinet |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244670A (en) * | 2013-06-14 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Container type server combination |
| CN103336567A (en) * | 2013-07-17 | 2013-10-02 | 曙光信息产业(北京)有限公司 | Cooling distribution module and server rack |
| CN103336567B (en) * | 2013-07-17 | 2017-07-18 | 曙光节能技术（北京）股份有限公司 | Cool distribution module, server rack |
| CN103458660A (en) * | 2013-08-29 | 2013-12-18 | 合肥天鹅制冷科技有限公司 | Airborne liquid cooling system used for airplane load refrigeration |
| CN103458660B (en) * | 2013-08-29 | 2016-06-08 | 合肥天鹅制冷科技有限公司 | A kind of machine carrier fluid cooling system for airplane load refrigeration |
| CN104144596A (en) * | 2014-07-17 | 2014-11-12 | 合肥天鹅制冷科技有限公司 | Airborne liquid cooling system |
| CN104703451A (en) * | 2015-03-31 | 2015-06-10 | 广东申菱空调设备有限公司 | Double-effect type server radiating device combining liquid cooling and frozen water air cooling systems |
| WO2018133158A1 (en) * | 2017-01-18 | 2018-07-26 | 广东合一新材料研究院有限公司 | Circulation cooling system |
| CN107705538A (en) * | 2017-11-01 | 2018-02-16 | 国网江苏省电力公司南通供电公司 | A kind of GPRS radio data transmission methods |
| CN107564263A (en) * | 2017-11-01 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | A kind of GPRS wireless data transmissions mode |
| CN107771015A (en) * | 2017-11-29 | 2018-03-06 | 郑州云海信息技术有限公司 | A kind of data center |
| CN107771015B (en) * | 2017-11-29 | 2019-09-06 | 郑州云海信息技术有限公司 | a data center |
| CN111526694A (en) * | 2019-02-02 | 2020-08-11 | 北京百度网讯科技有限公司 | Liquid cooling systems and server cabinets for server cabinets |
| CN111526694B (en) * | 2019-02-02 | 2022-12-13 | 北京百度网讯科技有限公司 | Liquid Cooling Systems and Server Racks for Server Racks |
| WO2020186859A1 (en) * | 2019-03-15 | 2020-09-24 | 广州高澜节能技术股份有限公司 | Drawer-type cdu |
| CN110278691A (en) * | 2019-07-01 | 2019-09-24 | 北京航空航天大学 | Pump-Driven Two-Phase Loop Cooling System for High Power Density Cabinets |
| CN110913656A (en) * | 2019-11-16 | 2020-03-24 | 珠海格力智能装备有限公司 | Heat dissipation system and heat dissipation method of robot electric cabinet |
| CN117062411A (en) * | 2020-05-29 | 2023-11-14 | Ovh公司 | Cooling structure and cooling system including the cooling structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103052304A (en) | Server cabinet cooling system | |
| CN203219665U (en) | Cooling system for a server cabinet | |
| US10356949B2 (en) | Server rack heat sink system with combination of liquid cooling device and auxiliary heat sink device | |
| CN105977572B (en) | The working medium cooling system by contact and its working method of capacity cell | |
| WO2023124976A1 (en) | Data center cooling system and data center | |
| CN102620363B (en) | Evaporation and electronic double-refrigeration cooling fan | |
| CN211429864U (en) | A single-cabinet data center liquid cooling structure | |
| CN103648252B (en) | Cooling system for electrical device | |
| CN103486752A (en) | Power electronic device cooling system and distributed power generation system | |
| CN102098902A (en) | Heat dissipation device, heat dissipation method for communication device and communication device | |
| CN104377884A (en) | Combined type water cooling system for motor and frequency converter | |
| CN104913419A (en) | Equipment and cabinet integrated air conditioner and system containing equipment and cabinet integrated air conditioner | |
| CN105258332A (en) | Waste heat recycling system of data room | |
| CN104994716B (en) | Data center's energy-saving air conditioning system of regenerative resource is utilized based on cold-storage | |
| CN205985858U (en) | Water -cooled distribution equipment | |
| CN102573427A (en) | Water cooling type cooling device for modular data center | |
| CN202092245U (en) | Thermal environmental control system | |
| CN104393739A (en) | Power cabinet heat dissipation system | |
| CN107809894A (en) | A kind of cooling device of data center's rack | |
| CN203445772U (en) | Cooling system for converter | |
| CN203040087U (en) | Heat dissipation apparatus for inverter and solar energy inverter | |
| CN106322590A (en) | Heat pipe cooling system for machine room | |
| CN205119477U (en) | Data computer lab waste heat recovery system | |
| CN204442886U (en) | With the outdoor communication cabinet of transverse-plug type communication equipment | |
| CN202521767U (en) | Evaporation and electronic double-refrigeration cooling fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |