CN102985661A - Exhaust-gas turbocharger - Google Patents
Exhaust-gas turbocharger Download PDFInfo
- Publication number
- CN102985661A CN102985661A CN2011800344954A CN201180034495A CN102985661A CN 102985661 A CN102985661 A CN 102985661A CN 2011800344954 A CN2011800344954 A CN 2011800344954A CN 201180034495 A CN201180034495 A CN 201180034495A CN 102985661 A CN102985661 A CN 102985661A
- Authority
- CN
- China
- Prior art keywords
- oil
- line
- exhaust turbine
- inflow line
- turbine supercharger
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 19
- 239000008041 oiling agent Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention relates to an exhaust-gas turbocharger (1), having a shaft (2) on which are arranged a compressor wheel (3) and a turbine wheel (4), having a bearing housing (5) in which are arranged a compressor-side bearing arrangement (6) and a turbine-side bearing arrangement (7) for the shaft (2), having an oil inflow line (8) and an oil outflow line (9), and having an additional oil accumulator (10) for the bearing arrangements (6, 7) of the shaft (2), wherein the oil accumulator (10) is designed as a pressure accumulator arranged in a branch line (11) of the oil inflow line (8), and wherein a controllable valve (13) is arranged between the oil accumulator (10) and the opening-in point (12) of the branch line (11) into the oil inflow line (8).
Description
Technical field
The present invention relates to according to claim 1 a kind of exhaust turbine supercharger of preamble.
Exhaust turbine supercharger by the known a kind of described type of EP2 054 597 B1.
For oiling agent being supplied with a plurality of bearings of this axle, described exhaust turbine supercharger has used the oil pump for engine of the explosive motor that this turbosupercharger is mounted thereon.
Yet, because length, lubricant viscosity, manufacturing tolerances and the other influences of these pipelines or pipeline, in the process of engine start, exist pressure savings and postpone, and therefore exist the delay in supply of oiling agent of the bearing arrangement of exhaust turbine supercharger.
In the engine stop process when exhaust turbine supercharger exceeds the speed limit owing to its quality inertia, equally Similar Problems can occur.In both cases, bearing arrangement running runs through this mixed friction stage, wherein further in the engine starting process that upgrades, is retained in oiling agent in the exhaust turbine supercharger by residual heat heating.
The viscosity that this result who has is oiling agent descends and lubrication property even further degradation.
In extreme application, for example as use at mixed power or the start/stop circulation of very high number in, described these problems can cause exhaust turbine supercharger the bearing arrangement damage and therefore cause the inefficacy of whole system.
Therefore, in the exhaust turbine supercharger according to this kind class of EP2 054 597 B1, provide an extra oil cup, this oil cup refers to a urgent oil tank and at all these radial bearings of extend through in the axial direction in described file.Because the supply of oil is provided with gravity in described system, this urgent oil tank be arranged at these radial bearings the top and with described bearing at a distance of a little radial distance.
Yet the test of carrying out in background of the present invention illustrates, and definitely in above-mentioned extreme applications, it often is inadequate supplying with based on an extra oil of the described type of gravity.
Therefore, an object of the present invention is to provide a kind of defined in the preamble of claim 1 exhaust turbine supercharger of type, this exhaust turbine supercharger allows when stopping and these bearing arrangements of in the start-up course at exhaust turbine supercharger enough oil being supplied with this pressurized machine axle all the time.
Described purpose is that these features by claim 1 realize.
Extra oil cup according to exhaust turbine supercharger of the present invention is designed to a pressure accumlator.For avoiding the mixed friction state in the start/stop cyclic process of exhaust turbine supercharger, supply with its bearing arrangement by described pressure accumlator is supplied with oiling agent with metering mode.
For this purpose, in engine operation process, the oiling agent in the circulation of being in of partial amt is extracted and is temporarily stored in and is used as the oiling agent that pressurizes in the pressure accumlator.For this purpose, can use hydraulic reservoir, as known from the hydraulics field.
By controllable valve on the pressure accumlator and a preferred other simple safety check that in inflow line, is used for oiling agent, might make oiling agent in the startup of motor and stopped process, supply with these bearing arrangements in the mode of metering.
Might make the safety check in the inflow line be exchanged for a controllable valve at this, specifically safety check, an or pressure difference valve.
If use a pressure difference valve, the pressure on the both sides of this valve is used to produce the movement of this valve so that in inflow line and/or in pressure accumlator and the savings or the dissipation that realize pressure in the start/stop cyclic process.
If use a controllable valve, safety check specifically, then these pressure signals this inflow line and this accumulator system activate strategy by one and estimate and link that its mode be that uniform pressure of generation is put aside in bearing arrangement.
At this, might make according to the present invention this system be designed to an outside or built-in system.
As a built-in system, at this these parts of pressure accumlator, these valves and a control gear are incorporated in the bearing housing of this exhaust turbine supercharger.
From the explanation of a following exemplary based on accompanying drawing, will show further details of the present invention, advantage and feature, in the accompanying drawings:
Fig. 1 shows a kind of diagram perspective, that cut of exhaust turbine supercharger, the figure shows these basic elements of character of not showing in Fig. 2, and
Fig. 2 shows the simplified schematic diagram according to a kind of exhaust turbine supercharger of the present invention.
An exhaust turbine supercharger 1 according to the present invention of showing in Fig. 2 not only has these parts of showing and also has these parts shown in Figure 1 in described figure, be an axle 2, a compressor impeller 3, a turbine wheel 4 and a bearing housing 5 definitely.A compressor side bearing that has arranged to be used for installation shaft 2 in bearing housing 5 arranges 6 and turbo machine side bearings to arrange 7.
According to the exhaust turbine supercharger 1 self-evident every other conventional components that also has contemporary turbocharger of the present invention, yet these parts do not have significance for explanation of the present invention.
According to Fig. 2, this exhaust turbine supercharger 1 also has an oily inflow line 8 and one oil and flows out pipeline 9, and these two pipelines hydraulically are connected on the engine oil loop of the motor that this exhaust turbine supercharger 1 is mounted thereon.
Exhaust turbine supercharger 1 according to the present invention also has an extra oil cup 10, and this oil cup is designed to a pressure accumlator and is arranged in the take-off line 11 of this oil inflow line 8.As shown in FIG. 2, between entering open inlet point 12 in this oil inflow line 8, this oil cup 10 and this take-off line 11 inserted a controllable valve 13.This controllable valve 13 can open and close by a control gear 14, and this control gear 14 that wherein is used for this purpose uses from inflow line and from the pressure signal of pressure accumlator 10, and described pressure signal is signified by dotted line DS in Fig. 2.
In oily inflow line, also provide a simple safety check 15 in the upstream of open inlet point 12, this safety check can replace with a controllable valve equally.
By activating these valves 13 and 15, can when having set up enough oil pressures, the oil pump of motor fill this pressure accumlator 10 with the oiling agent of pressurization.
In the start/stop process, so just might be by means of be stored in oiling agent in the pressure accumlator 10 and the actuating of these valves 13 and 15 temporarily, come so that these bearings that oiling agent is supplied with exhaust turbine supercharger 1 in the mode that target is arranged arrange 6 and 7, in order to prevent by the inadequate lubricated undesirable bearing condition that causes, as in foreword, illustrating.
Except above written disclosure of the present invention, hereby clearly with reference in Fig. 1 and Fig. 2, illustrating of the present invention.
Reference list
1 exhaust turbine supercharger
2 axles
3 compressor impellers
4 turbine wheels
5 bearing housinges
6 compressor side bearings arrange
7 turbo machine side bearings arrange
8 oily inflow line
9 oil flow out pipeline
10 oil cups/pressure accumlator
11 take-off lines
12 open inlet points
13 valves
14 control gear
15 safety check
The DS pressure signal
Claims (7)
1. an exhaust turbine supercharger (1),
-have an axle (2), arranged a compressor impeller (3) and a turbine wheel (4) on this axle,
-having a bearing housing (5), a compressor side bearing that has arranged to be used for this axle (2) in this bearing housing arranges (6) and a turbo machine side bearing to arrange (7),
-have an oily inflow line (8) and one oil to flow out pipeline (9), and
-have an extra oil cup (10) to arrange (6,7) with these bearings that are used for this axle (2),
It is characterized in that
-this oil cup (10) is designed to a pressure accumlator, and this pressure accumlator is arranged in the take-off line (11) of this oil inflow line (8), and
-between entering open inlet point (12) in this oil inflow line (8), this oil cup (10) and this take-off line (11) arranged a controllable valve (13).
2. exhaust turbine supercharger according to claim 1, it is characterized by a control gear (14), this control gear is used for opening and closing this controllable valve (13) according to a plurality of pressure signals (DS) from this inflow line (8) and this oil cup (10) reception.
3. exhaust turbine supercharger according to claim 1 and 2 is characterized in that a safety check (15) is arranged at the upstream of the open inlet point (12) of this take-off line (11) in this oil inflow line (8).
4. exhaust turbine supercharger according to claim 1 and 2 is characterized in that a controllable valve is arranged at the upstream of the open inlet point (12) of this take-off line (11) in this oil inflow line (8).
5. exhaust turbine supercharger according to claim 1 and 2 is characterized in that a pressure difference valve is arranged at the upstream of the open inlet point (12) of this take-off line (11) in this oil inflow line (8).
6. according to claim 1 to one of 5 described exhaust turbine superchargers, it is characterized in that this oil cup (10) and these valves (13,15) also and this control gear (14) is designed to be incorporated into a built-in system in this bearing housing (5).
7. according to claim 1 to one of 5 described exhaust turbine superchargers, it is characterized in that this oil cup (10) and these valves (13,15) also and this control gear (14) is designed to an external system.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010033965.2 | 2010-08-11 | ||
| DE102010033965 | 2010-08-11 | ||
| PCT/US2011/046530 WO2012021362A2 (en) | 2010-08-11 | 2011-08-04 | Exhaust-gas turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102985661A true CN102985661A (en) | 2013-03-20 |
Family
ID=45568133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800344954A Pending CN102985661A (en) | 2010-08-11 | 2011-08-04 | Exhaust-gas turbocharger |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130136579A1 (en) |
| JP (1) | JP5796073B2 (en) |
| KR (1) | KR101836361B1 (en) |
| CN (1) | CN102985661A (en) |
| DE (1) | DE112011102670T5 (en) |
| WO (1) | WO2012021362A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437884A (en) * | 2013-09-11 | 2013-12-11 | 宁波威孚天力增压技术有限公司 | Lubricating oil control system and method for turbocharger |
| CN106351745A (en) * | 2015-07-13 | 2017-01-25 | 福特环球技术公司 | Turbocharger arrangement having compressor wheels arranged in parallel and a method for operating a turbocharger arrangement |
| CN112049721A (en) * | 2019-06-07 | 2020-12-08 | 三井易艾斯机械有限公司 | Supercharger residual power recovery device for internal combustion engine, and ship |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8959911B2 (en) * | 2011-10-06 | 2015-02-24 | GM Global Technology Operations LLC | Engine assembly including fluid control to boost mechanism |
| US8955318B2 (en) * | 2012-03-21 | 2015-02-17 | Honeywell International Inc. | Turbocharger cartridge and engine cylinder head assembly |
| US8991176B2 (en) * | 2012-03-28 | 2015-03-31 | GM Global Technology Operations LLC | Fluid drive mechanism for turbocharger |
| JP6147655B2 (en) | 2013-03-12 | 2017-06-14 | 大豊工業株式会社 | Turbocharger lubrication oil supply mechanism |
| JP6165610B2 (en) * | 2013-12-06 | 2017-07-19 | 大豊工業株式会社 | Turbocharger lubrication oil supply mechanism |
| WO2016164297A1 (en) * | 2015-04-10 | 2016-10-13 | Borgwarner Inc. | System and method for distributing and controlling oil flow |
| DE102018127966A1 (en) | 2018-11-08 | 2020-05-14 | Bayerische Motoren Werke Aktiengesellschaft | Exhaust gas turbocharger and motor vehicle with such |
| CN110005480A (en) * | 2019-04-02 | 2019-07-12 | 中国北方发动机研究所(天津) | A kind of TC bearings body structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203318A (en) * | 1990-11-30 | 1992-07-23 | Hitachi Ltd | Oil supply quantity controller of supercharger |
| CN2507999Y (en) * | 2001-12-07 | 2002-08-28 | 贵阳风云通用机械新技术开发有限公司 | Independent lubricating device for turbocharger |
| KR20020080973A (en) * | 2001-04-18 | 2002-10-26 | 기아자동차주식회사 | Exhaust gas turbo-charger protecting device |
| JP2002332864A (en) * | 2001-05-02 | 2002-11-22 | Nippon Soken Inc | Lubricating device of turbocharger |
| WO2008029211A1 (en) * | 2006-09-06 | 2008-03-13 | Toyota Jidosha Kabushiki Kaisha | Electric supercharger |
| US20080283337A1 (en) * | 2007-05-14 | 2008-11-20 | Theobald Mark A | Control of turbocharger lubrication for hybrid electric vehicle |
| CN201209465Y (en) * | 2008-06-20 | 2009-03-18 | 中国北车集团大连机车研究所有限公司 | Engine oil compensation apparatus for diesel locomotive supercharger |
| DE102008016046A1 (en) * | 2008-03-28 | 2009-10-01 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Loading device, particularly supercharger for motor vehicle with internal combustion engine, has shaft stored in housing and carries turbine wheel at turbine side and compressor wheel at compressor side |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8028A (en) * | 1851-04-08 | Hokse-poweb | ||
| GB768792A (en) * | 1954-05-20 | 1957-02-20 | Maschf Augsburg Nuernberg Ag | A device for cooling the bearings of gas turbine installations, and in particular the exhaust gas turbo-superchargers of internal combustion engines |
| JPS5268620A (en) * | 1975-12-05 | 1977-06-07 | Automob Antipollut & Saf Res Center | Lubrication device for exhaust gas turbine type supercharger |
| JPS61107936U (en) * | 1984-12-19 | 1986-07-09 | ||
| JPH0475118U (en) * | 1990-11-10 | 1992-06-30 | ||
| JP2007239568A (en) * | 2006-03-08 | 2007-09-20 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Lubrication device of turbocharger |
| CN101506491B (en) | 2006-08-24 | 2011-01-26 | Abb涡轮系统有限公司 | Emergency oil tank |
-
2011
- 2011-08-04 CN CN2011800344954A patent/CN102985661A/en active Pending
- 2011-08-04 WO PCT/US2011/046530 patent/WO2012021362A2/en active Application Filing
- 2011-08-04 DE DE112011102670T patent/DE112011102670T5/en not_active Withdrawn
- 2011-08-04 JP JP2013524113A patent/JP5796073B2/en not_active Expired - Fee Related
- 2011-08-04 US US13/813,177 patent/US20130136579A1/en not_active Abandoned
- 2011-08-04 KR KR1020137004075A patent/KR101836361B1/en active IP Right Grant
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203318A (en) * | 1990-11-30 | 1992-07-23 | Hitachi Ltd | Oil supply quantity controller of supercharger |
| KR20020080973A (en) * | 2001-04-18 | 2002-10-26 | 기아자동차주식회사 | Exhaust gas turbo-charger protecting device |
| JP2002332864A (en) * | 2001-05-02 | 2002-11-22 | Nippon Soken Inc | Lubricating device of turbocharger |
| CN2507999Y (en) * | 2001-12-07 | 2002-08-28 | 贵阳风云通用机械新技术开发有限公司 | Independent lubricating device for turbocharger |
| WO2008029211A1 (en) * | 2006-09-06 | 2008-03-13 | Toyota Jidosha Kabushiki Kaisha | Electric supercharger |
| US20080283337A1 (en) * | 2007-05-14 | 2008-11-20 | Theobald Mark A | Control of turbocharger lubrication for hybrid electric vehicle |
| DE102008016046A1 (en) * | 2008-03-28 | 2009-10-01 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Loading device, particularly supercharger for motor vehicle with internal combustion engine, has shaft stored in housing and carries turbine wheel at turbine side and compressor wheel at compressor side |
| CN201209465Y (en) * | 2008-06-20 | 2009-03-18 | 中国北车集团大连机车研究所有限公司 | Engine oil compensation apparatus for diesel locomotive supercharger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437884A (en) * | 2013-09-11 | 2013-12-11 | 宁波威孚天力增压技术有限公司 | Lubricating oil control system and method for turbocharger |
| CN103437884B (en) * | 2013-09-11 | 2016-03-09 | 宁波威孚天力增压技术有限公司 | A kind of lubricant oil control system for turbosupercharger and method |
| CN106351745A (en) * | 2015-07-13 | 2017-01-25 | 福特环球技术公司 | Turbocharger arrangement having compressor wheels arranged in parallel and a method for operating a turbocharger arrangement |
| CN106351745B (en) * | 2015-07-13 | 2020-04-14 | 福特环球技术公司 | Turbocharger arrangement having compressor wheels arranged in parallel and method for operating a turbocharger arrangement |
| CN112049721A (en) * | 2019-06-07 | 2020-12-08 | 三井易艾斯机械有限公司 | Supercharger residual power recovery device for internal combustion engine, and ship |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112011102670T5 (en) | 2013-06-27 |
| WO2012021362A2 (en) | 2012-02-16 |
| JP5796073B2 (en) | 2015-10-21 |
| WO2012021362A3 (en) | 2012-05-24 |
| JP2013533435A (en) | 2013-08-22 |
| KR101836361B1 (en) | 2018-03-08 |
| US20130136579A1 (en) | 2013-05-30 |
| KR20130142998A (en) | 2013-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |
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| WD01 | Invention patent application deemed withdrawn after publication |