EP3362671A1 - Piezo-injektor zur kraftstoffeinspritzung - Google Patents
Piezo-injektor zur kraftstoffeinspritzungInfo
- Publication number
- EP3362671A1 EP3362671A1 EP16779084.9A EP16779084A EP3362671A1 EP 3362671 A1 EP3362671 A1 EP 3362671A1 EP 16779084 A EP16779084 A EP 16779084A EP 3362671 A1 EP3362671 A1 EP 3362671A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupler
- nozzle needle
- piston
- piezo
- nozzle
- 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
- 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
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/167—Means for compensating clearance or thermal expansion
-
- 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
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
-
- 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
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0077—Valve seat details
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/708—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with hydraulic chambers formed by a movable sleeve
Definitions
- the invention relates to a piezo injector for fuel injection, in particular for direct fuel injection in an internal combustion engine.
- Coupling unit between the piezo actuator and the nozzle needle has.
- the hydraulic coupler has a coupler piston, a coupler cylinder and a coupler spring, wherein the coupler piston is pressed by means of the coupler spring against a the coupler piston facing the end face of the nozzle needle.
- a piezo Inj ector for fuel injection, comprising a nozzle unit with a nozzle body movably arranged in a nozzle needle, a piezoelectric actuator unit and a hy ⁇ coupler unit for coupling the nozzle unit with the Ak ⁇ tuatorü.
- the hydraulic coupler unit has a coupler piston, a coupler cylinder and a coupler spring.
- the coupler piston has a top side facing the coupler cylinder and a bottom side facing the nozzle needle.
- the coupler cylinder is open to the nozzle needle, preferably so that the coupler piston is exposed.
- the coupler cylinder in particular has a bottom.
- the fact that the upper side of the coupler piston faces the coupler cylinder means, in particular, that the upper side faces the bottom of the coupler cylinder.
- the coupler volume is formed between the bottom of the coupler cylinder and the Obersei ⁇ te of the coupler piston in particular.
- the coupler piston is pressed by the coupler spring against one of the underside of the coupler piston facing end face of Dü ⁇ sennadel and has a contact surface with the Dü ⁇ sennadel on.
- the coupler piston has a through hole up to the top thereof provides a fluid communication from its underside and which is arranged within the Berüh ⁇ approximate area to the nozzle needle.
- the piezoelectric actuator unit is mechanically connected to the coupler ⁇ cylinder, in particular rigidly connected, so that a ne change in length of the piezoelectric actuator unit causes a displacement of the coupler cylinder along a longitudinal axis.
- a ne change in length of the piezoelectric actuator unit causes a displacement of the coupler cylinder along a longitudinal axis.
- the compensator spring is designed to be so weak considering the pressurized area on the piston that such a low force state occurs between the piston and the nozzle needle after the injection end. Since during the duration of the injection leakage of force ⁇ substance has occurred from the coupler volume, the axial distance between the coupler piston and coupler cylinder - in particular the distance between the top of Kopp ⁇ ler piston and the bottom of the coupler cylinder - has reduced, so that a axial gap between the nozzle needle and the
- Coupling piston is created.
- the term "axial" refers in particular to the common longitudinal axis of Kopplerzy ⁇ Linder, coupler piston and nozzle needle. The needle is thus lifted from the coupler piston. The inflow of fuel in the coupler can be made.
- the hydraulic coupler unit is arranged in particular in the nozzle body and the Kopplervo ⁇ lumen can be filled by means of the flowing through the nozzle body to the fuel outlet fuel.
- the pressure compensation in the coupler volume can thus be done quickly.
- the lateral mating game is in the present together menhang - insbesonde ⁇ re between a circumferential side wall of the Kopplerzylinders and the outer surface of the coupler understood.
- a contact face of the coupler to the nozzle needle is here and below, a surface on the upper surface of the coupler ⁇ , and in particular its nozzle ⁇ needle underside facing understood that is contacted by the nozzle needle.
- the contact can also take place along a line, in particular a circular line, so that a sealing edge is formed between the coupler piston and the nozzle needle. Under the contact surface then the enclosed by this line surface of Kopp ⁇ ler piston is understood.
- the passage opening in the coupler piston is typically completely sealable by the nozzle needle.
- the passage ⁇ opening thus forms together with the nozzle needle, a valve which opens when a gap between the coupler piston and the nozzle needle remains through the leakage of fuel from the coupler volume at the injection end.
- the geometry of the coupler piston and the end face of the nozzle needle there are numerous possibilities for designing the geometry of the coupler piston and the end face of the nozzle needle.
- the contact surface and the end face of the nozzle needle may be flat, convex or concave.
- These different types of training and in particular their combination affect the inflow behavior of fuel.
- the time available for pressure equalization radial flow area independent of the can through ⁇ enlarged diameter of the through opening itself or scaled-nert be the diameter of a sealing edge between the piston and the nozzle needle.
- a newly formed contact surface and a just ⁇ formed end face of the nozzle needle have the advantage that the production is particularly simple.
- a concave contact surface, along with a convex end face, or, conversely, a convex contact surface in connection with a concave end face has the advantage that a centering of couplers ⁇ lerkolben and the nozzle needle is carried out.
- the front side and / or the contact surface can be designed in particular spherically or conically.
- the nozzle needle is in particular opening outwardly latestbil ⁇ det.
- the needle seat of the nozzle needle can be designed as a conical shell ⁇ surface that is pressed in the nozzle body against a hollow conical surface so that a sealing function is achieved.
- a fuel film having a thickness in the range of 0.01 mm to
- the fuel film in particular represents the coupler volume.
- the fuel film is in particular between the top of the coupler piston and the bottom of the Coupling cylinder arranged.
- the thickness of the fuel film is chosen as small as possible, so that the hydraulic coupler has the greatest possible rigidity.
- the mini ⁇ male thickness of the layer is determined by the required mounting tolerances and the change in length zwi ⁇ rule the piezoelectric actuator and the injector body with temperature change due to the different thermal expansion coefficients between the piezoelectric actuator and the material of the injector, in particular steel.
- the mating game is - in particular ⁇ sondere the lateral mating game - between Kopplerzylinder and coupler piston than 10 ym, and in particular more than 2 ym.
- ⁇ provides that the hydraulic coupler maintains the needle stroke via a driving time of up to 5 ms almost constant.
- FIG. 1 shows a longitudinal section through a piezoelectric
- FIG. 2 shows a longitudinal section through a piezoelectric
- FIG. 3 shows a longitudinal section through a piezo injector according to a third embodiment of the invention
- FIG. 4 shows a longitudinal section through a piezoelectric
- FIG. 5 shows a detail of a piezoinjector according to a fifth embodiment of the invention
- FIG. 6 shows a detail of a piezoinjector according to a sixth embodiment of the invention.
- Fig. 7 shows a detail of a piezo injector according to a seventh embodiment of the invention.
- FIG. 8 shows a detail of a piezo injector according to an eighth embodiment of the invention.
- FIG. 9 shows a detail of a piezoinjector according to a ninth embodiment of the invention
- FIG. 10 shows a detail of a piezo injector according to a tenth embodiment of the invention
- Fig. 11 shows a detail of a piezo injector according to an eleventh embodiment of the invention.
- FIG. 12 shows a detail of a piezo injector according to a twelfth embodiment of the invention
- FIG. 13 shows a detail of a piezo injector according to a thirteenth embodiment of the invention.
- the piezo Inj ector 1 according to Figure 1 is formed in the embodiment shown for the direct injection of fuel in an internal combustion engine. It has a fuel inlet 2 and a fuel outlet 4. The fuel outlet 4 is closed by the nozzle needle 5 in the closed state of the piezo injector 1. For injection, the nozzle needle 5 opens to the outside and thus opens the fuel outlet 4.
- the nozzle needle 5 is part of the nozzle unit 3 and is movable in a nozzle body 7 along a longitudinal axis of the piezo Inj ector.
- Length change of a stack of piezoelectric ceramic discs uses: By applying a voltage, a longitudinal expansion of the stack of piezoelectric ceramic discs is effected, which causes a displacement of the coupler cylinder 15 in the direction of the coupler piston 13.
- the coupler unit 11 comprises the coupler piston 13 which is mounted in the coupler cylinder 15 along the longitudinal axis of the piezo Inj ector 1 movable.
- the coupler piston 13 is pressed by means of the coupler spring 17 against a coupling piston 13 facing end face 23 of the nozzle needle 5.
- the contact area between the coupler piston 13 and the nozzle needle 5 is shown in detail in the right half of FIG.
- the coupler piston 13 has a contact surface 21 with the nozzle needle 5, which represents a partial region of the lower side 28 and which is flat in the illustrated embodiment.
- the end face 23 of the nozzle needle 5 is also flat.
- a through hole 25 is inserted in the form of a through hole, which has the coupler piston 13 from an orifice on its underside 28, where it makes contact with the nozzle needle 5, to an orifice at its
- the coupler volume is in the form of a fuel film ange ⁇ arranged.
- fuel can flow into the coupler volume and fill it up. by a pressure equalization between the coupler volume and the remaining fuel olumen within the piezo Inj ektors ge ⁇ guaranteed.
- the piezo injector opens for fuel injection to the outside by the nozzle needle 5 is actuated by the Aktua- gate unit 9.
- the operating power supply ⁇ takes place from the actuator 9 on the nozzle needle 5 11.
- coupler by means of the hydraulic located be- seen the top side 26 of the coupler 13 and the coupler ⁇ cylinder 15, a thin fuel layer having a thickness Zvi ⁇ rule 0.05 mm 0.3 mm.
- FIG. 2 shows a second embodiment of the piezo-injector 1 according to FIG. 1.
- This embodiment differs from the first embodiment shown in FIG. 1 in that the end face 23 of the nozzle needle 5 is convex.
- a certain centering of the nozzle needle 5 with respect to the passage opening 25 can take place.
- FIG. 3 shows schematically a piezo injector 1 according to a third embodiment of the invention.
- This embodiment differs from that shown in Figures 1 and 2, characterized in that the end face 23 of the nozzle needle 5 is formed spherically convex and the contact surface 21 of the Kopp ⁇ lerkolbens 13 conically concave.
- the radius of curvature of the end face 23 is smaller than that of the contact surface 21. Both surfaces could also be spherical or conical.
- the radial filling gap can be adjusted. With this embodiment, a good centering of the nozzle needle 5 with respect to the passage opening 25 and thus also with respect to the coupler piston 13 is effected.
- FIG. 4 shows a piezo injector 1 according to a fourth embodiment of the invention.
- This embodiment differs from the embodiments shown in the previous figures in that the contact surface 21 of the Kopp ⁇ ler piston 13 is concave and the end face 23 of the nozzle needle 5 even.
- the nozzle needle 5 touches the coupler piston 13 only in a circular area at its edge.
- a relatively large radial flow area is available for pressure equalization.
- FIG. 5 schematically shows a detail of a piezo-injector 1 according to a fifth embodiment of the invention.
- the contact surface 21 of the Kopplerkol ⁇ bens 13 is flat, the end face 23 of the nozzle needle 5, however, convex, in the form of a projecting into the passage opening 25 conical tip.
- ⁇ form a centering of the nozzle needle 5 is achieved.
- FIG. 6 shows details of a piezo-injector 1 according to a sixth embodiment of the invention.
- the contact surface 21 of the coupler piston 13 is formed flat, the end face 23 of the nozzle needle, however, concave, in the form of a hollow cone. It could also be spherical.
- no centering of the nozzle needle 5 is achieved, but a relatively large radial flow area.
- FIG. 7 shows a detail of a piezo-injector 1 according to a seventh embodiment of the invention.
- this embodiment similar to the one shown in Figure 1, both the contact surface 21 of the coupler piston 13 and the front surface 23 ⁇ of the nozzle needle 5 are flat.
- a centering of the nozzle needle 5 is provided to the coupler piston 13, in the form of a recess 27 in the coupler piston 13, in which the nozzle needle 5 enters.
- Figures 8 to 10 show details of piezo injectors 1 according to an eighth, ninth and tenth embodiments of the invention, in each of which the contact surfaces 21 of the coupler piston 13 are concave, in the form of a hollow cone.
- the end face 23 of the nozzle needle 5 is at the same time convex, in the form of a cone whose opening angle is exactly matched to that of the hollow cone of the contact surface 21, so that a good centering results.
- Face 23 concave, in the form of a hollow cone. However, it could also be spherical.
- each of the contact surface 21 of the coupler piston 23 is convex, in the form of a cone.
- the contact surfaces 21 could also be spherical.
- FIG. 11 According to the eleventh embodiment shown in FIG. 11, FIG. 11
- End face 23 of the nozzle needle 5 convex, namely spherical. It could also have a cone shape.
- the end face 23 of the nozzle needle 5 is concave, in the form of a hollow cone. It could also be designed in the form of a hollow sphere.
- the end face 23 of the nozzle needle is planar.
- the individual embodiments thus differ only by the geometry of the contact surface 21 of Kopp ⁇ ler piston 13 and the end face 23 of the nozzle needle 5.
- the pressure compensation radial flow surfaces can be adapted to the requirements.
- a centering and / or an angle compensation of the nozzle needle and the coupler piston to each other can be made possible as needed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015219912.6A DE102015219912B3 (de) | 2015-10-14 | 2015-10-14 | Piezo-Injektor zur Kraftstoffeinspritzung |
| PCT/EP2016/074182 WO2017063988A1 (de) | 2015-10-14 | 2016-10-10 | Piezo-injektor zur kraftstoffeinspritzung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3362671A1 true EP3362671A1 (de) | 2018-08-22 |
| EP3362671B1 EP3362671B1 (de) | 2019-07-17 |
| EP3362671B8 EP3362671B8 (de) | 2019-12-18 |
Family
ID=57124009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16779084.9A Not-in-force EP3362671B8 (de) | 2015-10-14 | 2016-10-10 | Piezo-injektor zur kraftstoffeinspritzung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20180298861A1 (de) |
| EP (1) | EP3362671B8 (de) |
| KR (1) | KR102082589B1 (de) |
| CN (1) | CN108138716A (de) |
| DE (1) | DE102015219912B3 (de) |
| WO (1) | WO2017063988A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101940563B1 (ko) * | 2017-05-12 | 2019-01-22 | 주식회사 로보프린트 | 이미지 가공 방법, 이미지 자동 인쇄 방법 및 자동인쇄장치용 노즐 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5860597A (en) * | 1997-03-24 | 1999-01-19 | Cummins Engine Company, Inc. | Injection rate shaping nozzle assembly for a fuel injector |
| DE19821768C2 (de) * | 1998-05-14 | 2000-09-07 | Siemens Ag | Dosiervorrichtung und Dosierverfahren |
| GB9811649D0 (en) * | 1998-05-29 | 1998-07-29 | Lucas Ind Plc | Fuel injector |
| GB9925753D0 (en) * | 1999-10-29 | 1999-12-29 | Lucas Industries Ltd | Fuel injector |
| US6991187B2 (en) * | 2000-11-13 | 2006-01-31 | Siemens Automotive Corporation | Magneto-hydraulic compensator for a fuel injector |
| DE10133265A1 (de) * | 2001-07-09 | 2003-01-23 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| DE10145620B4 (de) * | 2001-09-15 | 2006-03-02 | Robert Bosch Gmbh | Ventil zum Steuern von Flüssigkeiten |
| DE10148594A1 (de) * | 2001-10-02 | 2003-04-10 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| DE10360451B4 (de) * | 2003-02-27 | 2014-01-09 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE10344061A1 (de) * | 2003-09-23 | 2005-04-28 | Siemens Ag | Einspritzventil mit einem hydraulischen Ausgleichselement |
| DE102005009148A1 (de) * | 2005-03-01 | 2006-09-07 | Robert Bosch Gmbh | Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied mit Doppelsitz |
| DE102005040912A1 (de) * | 2005-08-30 | 2007-03-08 | Robert Bosch Gmbh | Einspritzdüse |
| EP1811167A1 (de) * | 2006-01-24 | 2007-07-25 | Siemens VDO Automotive S.p.A. | Einspritzventil, Ausgleichelement für das Einpritzventil, Entlastungsvorrichtung für das Ausgleichelement und Erstellungs- und Kalibrierungsverfahren |
| US7665445B2 (en) * | 2008-04-18 | 2010-02-23 | Caterpillar Inc. | Motion coupler for a piezoelectric actuator |
| DE102011079468A1 (de) * | 2011-07-20 | 2013-01-24 | Continental Automotive Gmbh | Piezoinjektor |
| DE102012219867A1 (de) * | 2012-10-30 | 2014-04-30 | Robert Bosch Gmbh | Kraftstoffinjektor mit Piezoaktor |
| DE102013219225A1 (de) * | 2013-09-25 | 2015-03-26 | Continental Automotive Gmbh | Piezo-Injektor zur Kraftstoff-Direkteinspritzung |
-
2015
- 2015-10-14 DE DE102015219912.6A patent/DE102015219912B3/de not_active Expired - Fee Related
-
2016
- 2016-10-10 CN CN201680060312.9A patent/CN108138716A/zh active Pending
- 2016-10-10 KR KR1020187013535A patent/KR102082589B1/ko not_active Expired - Fee Related
- 2016-10-10 WO PCT/EP2016/074182 patent/WO2017063988A1/de not_active Ceased
- 2016-10-10 EP EP16779084.9A patent/EP3362671B8/de not_active Not-in-force
- 2016-10-10 US US15/767,449 patent/US20180298861A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180063894A (ko) | 2018-06-12 |
| US20180298861A1 (en) | 2018-10-18 |
| EP3362671B1 (de) | 2019-07-17 |
| WO2017063988A1 (de) | 2017-04-20 |
| KR102082589B1 (ko) | 2020-02-27 |
| EP3362671B8 (de) | 2019-12-18 |
| CN108138716A (zh) | 2018-06-08 |
| DE102015219912B3 (de) | 2017-04-06 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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