EP2409012A1 - Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine - Google Patents
Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschineInfo
- Publication number
- EP2409012A1 EP2409012A1 EP10710156A EP10710156A EP2409012A1 EP 2409012 A1 EP2409012 A1 EP 2409012A1 EP 10710156 A EP10710156 A EP 10710156A EP 10710156 A EP10710156 A EP 10710156A EP 2409012 A1 EP2409012 A1 EP 2409012A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- protective plate
- fuel
- pressure
- magnet pot
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0019—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of electromagnets or fixed armatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/04—Fuel-injection apparatus having means for avoiding effect of cavitation, e.g. erosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/08—Fuel-injection apparatus having special means for influencing magnetic flux, e.g. for shielding or guiding magnetic flux
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9053—Metals
- F02M2200/9069—Non-magnetic metals
Definitions
- the invention relates to a device for injecting fuel into the combustion chamber of an internal combustion engine comprising an injection nozzle with an axially displaceable nozzle needle, which can be acted upon to control its opening and closing movement of the prevailing in a fuel-filled control chamber pressure in the axial direction, wherein the pressure is controlled in the control chamber via an at least one inlet or outlet channel for fuel opening or closing solenoid valve, in which a coil having a coil coil cooperates with an armature and the armature is pressed against a valve seat valve closure member, wherein the armature disposed in an armature space is, in which the inlet and outlet channel opens.
- servo-controlled injection injectors for internal combustion engines, in particular in common-rail injection systems, the control of the injection takes place with the aid of a solenoid valve.
- the solenoid valve controls the outflow of fuel from the control chamber of an injection nozzle.
- a servo-controlled injection injector according to the prior art is shown in Fig.l.
- Fig.l shows the schematic structure of a modular common rail injection system. From the fuel tank 1 2 fuel is sucked with a prefeed pump and brought from the high pressure pump 3 to the required system pressure and fed to the injection injector 4.
- the injector 4 consists of an injection nozzle 5, a throttle plate 6, a solenoid valve 7, a (not shown) with a high pressure accumulator equipped injector body 8 and a nozzle retaining nut 9, which holds the parts together.
- the solenoid valve 7 is closed, so that high-pressure fuel from the high-pressure bore 10 via the transverse groove 11 and the inlet throttle 12 flows into the control chamber 13 of the nozzle 5, the outflow from the control chamber 13 via the outlet throttle 14 but at the valve seat 15 of the magnetic valve. tils 7 is blocked.
- the solenoid valve 7 If the solenoid valve 7 is actuated by controlling the electromagnet and the solenoid valve member 27 is lifted against the force of the solenoid valve spring 26 from the valve seat 15, it releases the flow through the valve seat 15, and fuel flows from the control chamber 13 through the outlet throttle 14, the Solenoid valve armature chamber 19, the outlet column 20, the relief bore 21 and the low-pressure bore 22 back into the fuel tank 1. It sets a defined by the flow cross-sections of inlet throttle 12 and outlet throttle 14 equilibrium pressure in the control chamber 13, which is so low that the in Nozzle space 23 applied system pressure in the nozzle body 29 longitudinally displaceable guided nozzle needle 17 is able to open, so that the injection holes 24 are released and the injection takes place.
- the actual magnetic coil 28 (consisting of a plastic winding carrier and the copper wire threads) is in direct contact with fuel, so that when cavitation occurs in the system, especially in plastic components, as used for the winding support of the solenoid 28, Damage due to cavitation erosion may occur. Cavitation arises as follows:
- the present invention now aims to avoid such damage due to cavitation erosion.
- the injection device of the type mentioned is substantially further developed such that the magnetic coil is covered on the armature space side of a metallic protective plate.
- the armature space facing surface of the magnetic coil i. the side of the magnetic coil exposed to cavitation is effectively protected from damage by the inventive arrangement of a metallic protective plate.
- This structurally very simple measure of the arrangement of a metallic protective plate makes it possible to effectively prevent cavitation erosion on the (plastic) winding carrier without structural alterations or adjustments or material changes having to be carried out on the winding carrier.
- the protective plate is of annular design and in which the annular cavity of the magnetic pot or the hollow space accommodating the coil is arranged so as to cover it.
- the determination of the protective plate can be done in various ways. For example, a preferred embodiment provides that the protective plate is pressed into the magnet pot. This has the advantage of easy installation while maintaining a sufficiently high holding power. Alternatively it can be provided that the protective plate is welded to the magnet pot.
- a further preferred embodiment provides that the ring-shaped protective plate is held in the cavity of the magnet pot by means of tongues overlapping the protective plate, the tongues advantageously being formed from the material of the magnet pot, preferably by pressing on a caulking tool having projecting teeth.
- the inventive arrangement of a metallic protective plate naturally entails the risk that the operation of the electromagnet is impaired. In particular, it can lead to a disturbance of the magnetic field lines.
- the protective plate consists of a metal which does not disturb the magnetic field lines, preferably of stainless steel.
- FIG. 2 shows a detailed view of an injection injector according to FIG. 1, which carries the protective plate according to the invention
- FIG. 3 shows an alternative embodiment
- FIG. 4 shows a further alternative embodiment.
- Fig. 2 shows an embodiment of a magnet pot 25 according to the present invention.
- a metal plate 30 is mounted for protection, which is pressed into the magnet pot 25 at its side edges 31.
- the metal plate 30 is preferably such that it does not disturb the structure of the magnetic field lines in the magnetic circuit, for example by using a stainless steel.
- FIG. 3 shows an alternative embodiment of the invention.
- the metal disc 30 is welded at the locations 32 with the magnetic pot 25.
- 4 shows a further alternative embodiment of the invention.
- the metal disk 30 is loosely inserted in the magnetic pot 25 in front of the magnetic coil 28 in a first step.
- a caulking tool 33 which has teeth 34 protruding several times on the circumference, preferably six to eight times inside and outside the coil window, is caulked.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA425/2009A AT508049B1 (de) | 2009-03-17 | 2009-03-17 | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine |
| PCT/AT2010/000079 WO2010105282A1 (de) | 2009-03-17 | 2010-03-16 | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2409012A1 true EP2409012A1 (de) | 2012-01-25 |
| EP2409012B1 EP2409012B1 (de) | 2014-04-30 |
Family
ID=42167463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10710156.0A Active EP2409012B1 (de) | 2009-03-17 | 2010-03-16 | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8839765B2 (de) |
| EP (1) | EP2409012B1 (de) |
| JP (1) | JP5296920B2 (de) |
| KR (1) | KR101487696B1 (de) |
| CN (1) | CN102388216B (de) |
| AT (1) | AT508049B1 (de) |
| BR (1) | BRPI1009127A2 (de) |
| RU (1) | RU2496024C2 (de) |
| WO (1) | WO2010105282A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101328442B1 (ko) * | 2012-05-15 | 2013-11-14 | 자동차부품연구원 | 디젤엔진용 직접분사식 인젝터 |
| DE102012219978A1 (de) * | 2012-10-31 | 2014-04-30 | Robert Bosch Gmbh | Magnetbaugruppe für ein Magnetventil |
| FR3027068B1 (fr) * | 2014-10-08 | 2019-09-13 | Delphi Technologies Ip Limited | Injecteur de carburant |
| DE102017109947B9 (de) | 2016-05-10 | 2023-08-03 | Denso Corporation | Kraftstoffeinspritzvorrichtung |
| CN106050497B (zh) * | 2016-05-19 | 2018-06-12 | 哈尔滨工程大学 | 可变控制自锁式电磁喷油器 |
| CN114458508B (zh) * | 2022-03-09 | 2022-12-13 | 哈尔滨工程大学 | 一种基于永磁实现高动态响应的电磁-永磁耦合的高速电磁阀 |
| CN217926124U (zh) * | 2022-09-28 | 2022-11-29 | 中国船舶集团有限公司第七一一研究所 | 电控喷油器以及内燃机 |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197996A (en) * | 1978-12-07 | 1980-04-15 | Ford Motor Company | Constant pressure fuel injector assembly |
| SU909263A1 (ru) * | 1980-05-26 | 1982-02-28 | Коломенский Филиал Всесоюзного Заочного Политехнического Института | Форсунка |
| DE3802648A1 (de) * | 1988-01-29 | 1989-08-10 | Mainz Gmbh Feinmech Werke | Elektromagnetisch betaetigtes, hydraulisches schnellschaltventil |
| DE3936619A1 (de) * | 1989-11-03 | 1991-05-08 | Man Nutzfahrzeuge Ag | Verfahren zum einspritzen eines brennstoffes in einen brennraum einer luftverdichtenden, selbstzuendenden brennkraftmaschine, sowie vorrichtungen zur durchfuehrung dieses verfahrens |
| US5238224A (en) * | 1992-08-20 | 1993-08-24 | Siemens Automotive L.P. | Dry coil |
| US5341994A (en) | 1993-07-30 | 1994-08-30 | Siemens Automotive L.P. | Spoked solenoid armature for an electromechanical valve |
| RU2141574C1 (ru) * | 1994-02-15 | 1999-11-20 | Инвент Инджиниринг ПТИ Лтд. | Система топливной форсунки для двигателя внутреннего сгорания (варианты), способ повышения надежности дизельного двигателя, оснащенного топливной форсункой, и способ снижения шума, исходящего от дизельного двигателя |
| DE69626097T2 (de) * | 1995-08-29 | 2003-10-30 | Hirohisa, Tanaka | Kraftstoffeinspritzvorrichtung der speichergattung |
| US5775600A (en) * | 1996-07-31 | 1998-07-07 | Wildeson; Ray | Method and fuel injector enabling precision setting of valve lift |
| US6065451A (en) * | 1997-08-26 | 2000-05-23 | Alliedsignal Inc. | Bypass valve with constant force-versus-position actuator |
| US5947380A (en) * | 1997-11-03 | 1999-09-07 | Caterpillar Inc. | Fuel injector utilizing flat-seat poppet valves |
| DE19829380A1 (de) * | 1998-07-01 | 2000-01-05 | Bosch Gmbh Robert | Brennstoffeinspritzventil und Verfahren zur Herstellung eines Brennstoffeinspritzventiles |
| US6029632A (en) * | 1998-07-21 | 2000-02-29 | Daimlerchrysler Ag | Fuel injector with magnetic valve control for a multicylinder internal combustion engine with direct fuel injection |
| JP3556899B2 (ja) * | 2000-12-04 | 2004-08-25 | 三菱電機株式会社 | 燃料噴射弁 |
| JP2003156169A (ja) * | 2001-09-04 | 2003-05-30 | Denso Corp | 電磁式流体制御装置 |
| WO2004055357A1 (de) * | 2002-12-13 | 2004-07-01 | Robert Bosch Gmbh | Prellerfreier magnetsteller für einspritzventile |
| DE10305985A1 (de) * | 2002-12-13 | 2004-07-15 | Robert Bosch Gmbh | Prellerfreier Magnetsteller für Einspritzventile |
| US6935580B2 (en) * | 2003-02-10 | 2005-08-30 | Caterpillar Inc | Valve assembly having multiple rate shaping capabilities and fuel injector using same |
| JP4296081B2 (ja) * | 2003-12-09 | 2009-07-15 | シーケーディ株式会社 | 電磁弁 |
| DE102004024215A1 (de) * | 2004-05-15 | 2005-12-08 | L'orange Gmbh | Steuerventil |
| ES2277229T3 (es) * | 2004-06-30 | 2007-07-01 | C.R.F. Societa Consortile Per Azioni | Servovalvula para controlar el inyector de combustible de un motor de combustion interna. |
| DE102004058803A1 (de) * | 2004-12-07 | 2006-06-08 | Robert Bosch Gmbh | Einspritzventil |
| JP2006242108A (ja) * | 2005-03-03 | 2006-09-14 | Denso Corp | 電磁弁およびそれを用いた燃料噴射装置 |
| EP1707798B1 (de) * | 2005-03-14 | 2010-05-19 | C.R.F. Società Consortile per Azioni | Verstellbares Dosierservoventil eines Einspritzventils sowie dessen Verstellungsverfahren |
| JP2007064364A (ja) * | 2005-08-31 | 2007-03-15 | Denso Corp | 電磁弁 |
| DE102006020689A1 (de) * | 2006-05-04 | 2007-11-08 | Robert Bosch Gmbh | Magnetventil mit stoffschlüssiger Ankerverbindung |
| JP4400638B2 (ja) * | 2007-03-06 | 2010-01-20 | 株式会社デンソー | 電磁弁およびそれを用いた燃料噴射装置 |
| DE102007011047A1 (de) * | 2007-03-07 | 2008-09-11 | Robert Bosch Gmbh | Magnetventilinjektor |
| JP4609524B2 (ja) * | 2008-05-09 | 2011-01-12 | 株式会社デンソー | 燃圧制御装置、及び燃圧制御システム |
| EP2123890A1 (de) * | 2008-05-21 | 2009-11-25 | GM Global Technology Operations, Inc. | Verfahren und Vorrichtung zur Steuerung des Betriebdrucks eines Common-Rail-Einspritzsystems |
| US20090326788A1 (en) * | 2008-06-25 | 2009-12-31 | Honda Motor Co., Ltd. | Fuel injection device |
-
2009
- 2009-03-17 AT ATA425/2009A patent/AT508049B1/de active
-
2010
- 2010-03-16 BR BRPI1009127A patent/BRPI1009127A2/pt not_active IP Right Cessation
- 2010-03-16 CN CN201080012493.0A patent/CN102388216B/zh active Active
- 2010-03-16 EP EP10710156.0A patent/EP2409012B1/de active Active
- 2010-03-16 US US13/257,139 patent/US8839765B2/en active Active
- 2010-03-16 RU RU2011141859/06A patent/RU2496024C2/ru not_active IP Right Cessation
- 2010-03-16 JP JP2012500002A patent/JP5296920B2/ja active Active
- 2010-03-16 KR KR20117024437A patent/KR101487696B1/ko not_active Expired - Fee Related
- 2010-03-16 WO PCT/AT2010/000079 patent/WO2010105282A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010105282A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2011141859A (ru) | 2013-04-27 |
| AT508049A1 (de) | 2010-10-15 |
| JP5296920B2 (ja) | 2013-09-25 |
| CN102388216B (zh) | 2014-07-09 |
| BRPI1009127A2 (pt) | 2016-03-01 |
| RU2496024C2 (ru) | 2013-10-20 |
| KR20110128207A (ko) | 2011-11-28 |
| JP2012520957A (ja) | 2012-09-10 |
| AT508049B1 (de) | 2016-01-15 |
| CN102388216A (zh) | 2012-03-21 |
| US8839765B2 (en) | 2014-09-23 |
| KR101487696B1 (ko) | 2015-01-29 |
| US20120006301A1 (en) | 2012-01-12 |
| WO2010105282A1 (de) | 2010-09-23 |
| EP2409012B1 (de) | 2014-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20110919 |
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