EP1511933A1 - Hubübertragungselement für ein einspritzventil - Google Patents
Hubübertragungselement für ein einspritzventilInfo
- Publication number
- EP1511933A1 EP1511933A1 EP03756965A EP03756965A EP1511933A1 EP 1511933 A1 EP1511933 A1 EP 1511933A1 EP 03756965 A EP03756965 A EP 03756965A EP 03756965 A EP03756965 A EP 03756965A EP 1511933 A1 EP1511933 A1 EP 1511933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmission element
- stroke transmission
- bellows
- elastomer
- element according
- 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
- 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
- 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
-
- 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
- F02M2200/704—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with actuator and actuated element moving in different directions, e.g. in opposite directions
Definitions
- the present invention relates to a stroke transmission element for an injection valve according to the preamble of claim 1.
- Such an element is known from DE 199 62 177 AI, the stroke transmission element having a pressure-loaded storage chamber area, the area limits of which are elastic.
- this thermal compensation element can ensure a non-positive connection of the individual components of an injection valve in the entire operating range; Attention should be paid in particular to the speed stability of the stroke transmission element.
- the storage chamber area is limited by a metal bellows arrangement.
- the first disadvantage is that metal bellows assemblies are complex to manufacture and therefore relatively expensive. Since the metal bellows are very stiff radially, the volume compensation takes place in the axial direction.
- the metal bellows only has a linear spring characteristic with small deflections, with larger deflections, e.g. when the temperature changes during operation, the bellows shows strong hysteresis effects.
- an additional spring element is required in order to ensure the maintenance of the storage chamber pressure and thus the functionality even at high engine speeds. It is also disadvantageous that the dynamic properties can change during operation with this metal bellows arrangement.
- the storage chamber area with the elastic area limits can also be made from one Elastomer material to be formed.
- the volume compensation can be made possible by radial bellows. These elements are relatively soft in the axial direction, which is necessary for sufficient stroke generation by the actuator.
- the known elastomer materials show a creep behavior which, in the event of inevitable aging, leads to a loss of radial rigidity and thus to an undesirable pressure loss in the storage chamber. Speed stability would therefore not be given even with an elastomer bellows.
- the object of the present invention is to provide a stroke transmission element for an injection valve that has sufficient speed stability over the operating period.
- this is achieved in a stroke transmission element with the features of claim 1, wherein the elastic bellows has a stiffening element which, at least in sections in the elastomer bellows, ensures a constant radial rigidity over the operating period.
- an additional suitable element possibly known from the prior art, can be provided to generate the counterforce for an actuator of the injection valve.
- the stroke transmission element can be made particularly compact if the stiffening element at the same time at least partially increases the axial rigidity of the elastomer material at most insignificantly. Then, in addition to the storage function, at least one section of the elastomer bellows can also provide the actuator counterforce.
- the stiffening element is chosen so optimally that it compensates in particular for the loss of radial stiffness due to the aging of the elastomer material without the axial one To increase the stiffness of the storage element too much.
- stiffening element extends over the entire length of the elastomer bellows, a suitable choice in particular of the geometries of both the elastomer bellows and the stiffening element can be achieved in accordance with the respective requirements of this compromise.
- the elastomer bellows have a first region A and a second region B connected in series by spring technology, the stiffening element being provided only in the second region.
- the first area A is designed to be radially stiffer than the second area due to a suitably chosen geometry. Due to the stiffening element, the second area B is axially stiffer than the first area A.
- the two areas A, B are connected axially in series, so that the reciprocal values of the axial stiffnesses add up. Given a total deflection given by the actuator, the additional counterforce acting on the actuator is therefore determined in a first approximation solely by the first area A with the lower rigidity.
- the stiffening element is injected into the elastomer bellows, which is designed in particular as a sleeve. This applies even more if a base plate and / or a top plate are connected to the elastomer bellows and the stiffening element to form a structural unit by spraying technology.
- An exemplary embodiment of the injection valve according to the invention with a stroke transmission element is described below; show it:
- Fig. 1 greatly simplified in a sectional view of the injection valve, as well
- Fig. 2 shows a memory of the stroke transmission element in an enlarged perspective view.
- an injection valve comprises an actuator 1, which controls the movement of a valve needle 5 and thus the fuel injection process via a stroke transmission element that has a hydraulic reverser 3.
- the valve needle 5 is guided in a manner known per se in a valve needle housing 9 equipped with corresponding valve openings 7, the valve according to FIG. 1 opening inwards or alternatively outwards.
- a needle tappet 11 and, connected to it, an actuator tappet 13 are guided in a housing 12 of the hydraulic reverser 3 filled with a hydraulic fluid.
- the movement of the actuator 1 is transmitted through the actuator tappet 13 to the needle tappet 11 and further to the valve needle 5.
- the stroke transmission element has a storage chamber 15 in the housing 12 and an additional storage chamber 16 which is formed in an additional elastic storage element 17.
- the elastic wall sections of the storage element 17 are realized by an elastomer bellows 19, which at the same time provides the counterforce for the actuator 1 in the axial direction.
- the hollow cylindrical elastomer bellows 19 is tightly connected on the face side to a base plate 21 and to a head plate 23.
- the base plate 21 closes off the housing 12 of the hydraulic reverser 3 and has a corresponding opening for the actuator tappet 13.
- the top plate 23 is tightly connected to the actuator plunger 13 on the actuator side.
- the additional storage chamber 16 with the elastic wall sections is thus formed in the annular space between the actuator tappet 13 and the inner wall of the elastomer bellows 19.
- the additional storage chamber 16 is suitable over a dimensioned annular gap 25, which is formed in the region of the opening of the housing 12 between the latter and the actuator tappet 13, in fluid communication with the feed chamber 15 formed in the housing 12 of the hydraulic reverser 3.
- the elastomer bellows 19 of the storage element 17 has a first area A and a second area B with different axial and radial elastic properties in the axial direction.
- the two areas A, B ensure different functions of the memory element 17 and are each suitably adjusted to one another in accordance with the requirements.
- a stiffening element 27 is arranged in the elastomer bellows 19 in the second area B, which e.g. is formed by a sleeve-shaped metal network (Fig. 2).
- this area is radially softer than in the case of a pure metal bellows according to the known state of the art and in fact so soft that the additional volume of the hydraulic fluid can be absorbed in the storage element 17 without a sharp increase in pressure.
- this metal mesh 27 ensures constant radial rigidity in the second region B of the elastomer bellows 19.
- the geometry of the elastomer bellows 19 in the first area A is selected such that the radial stiffness in the first area A is significantly greater than in the second area B despite the lack of a stiffening element. Therefore, radial expansion or a pressure loss associated with this over the service life is first area A is negligible and the speed stability of the storage element is not adversely affected overall.
- the elastomer bellows 19 in the second area B has an increased axial rigidity, which - if the area A would not exist - would have a negative effect on the functionality of the injection valve.
- the output stroke with steep gender angry counterforce In the case of the known actuator types, the output stroke with steep gender angry counterforce.
- the suitable design of the axial rigidity in the first area A of the elastomer bellows 19 ensures, however, that the actuator stroke can be introduced into the transmission element 3 without any appreciable additional counterforce. Since the axial rigidity in the second area B is no longer relevant for the function of the converter, it can be of any desired height and in particular optimal with regard to the requirements described above.
- a non-reinforced elastomer is used in area A, the rigidity of which is optimally adjusted axially due to the material hardness and the geometry.
- the length of the area A is to be designed such that this area A is radially sufficiently rigid to negligibly expand when the hydraulic fluid volume is increased.
- the hydraulic converter 3 or the storage element 17 is thus designed such that, on the one hand, the additional volume of hydraulic fluid generated by a change in temperature is made available in the second region B without any appreciable pressure increase, because of the low radial rigidity, so that the dynamic properties of the injection valve in the Change the operating temperature range from -40 ° C to + 150 ° C only insignificantly.
- the actuator counterforce generated by the storage element 17 is suitably low.
- the elastomer material has a hardness of 70 to 85 ShoreA according to DIN 53505. The stiffness of the elastomer material is inherently isotropic and therefore independent of direction. Because of the space restrictions, the elastomer bellows 19 is designed as a sleeve, with the rule that the length of the sleeve is significantly greater than its wall thickness.
- the entire elastomer reservoir 17 is produced in a vulcanization process.
- the top and bottom plates 21, 23 are placed together with the stiffening element 27 in a corresponding injection mold and the hot material injected.
- the crosslinking process takes place at high temperature and pressure, as a result of which all parts are firmly connected to one another and can be removed from the injection mold as a compact and robust structural unit (not shown).
- the stroke transmission element according to the invention is suitable as a hydraulic compensator for use in various types of injection valves, in particular in diesel injection valves or in high pressure direct injection (HPDJ) systems.
- HPDJ high pressure direct injection
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10225686A DE10225686B4 (de) | 2002-06-10 | 2002-06-10 | Hubübertragungselement für ein Einspritzventil |
| DE10225686 | 2002-06-10 | ||
| PCT/DE2003/001859 WO2003104639A1 (de) | 2002-06-10 | 2003-06-03 | Hubübertragungselement für ein einspritzventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1511933A1 true EP1511933A1 (de) | 2005-03-09 |
| EP1511933B1 EP1511933B1 (de) | 2007-12-05 |
Family
ID=29718926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03756965A Expired - Lifetime EP1511933B1 (de) | 2002-06-10 | 2003-06-03 | Hubübertragungselement für ein einspritzventil |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7100895B2 (de) |
| EP (1) | EP1511933B1 (de) |
| JP (1) | JP4273072B2 (de) |
| DE (2) | DE10225686B4 (de) |
| WO (1) | WO2003104639A1 (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004005456A1 (de) * | 2004-02-04 | 2005-08-25 | Robert Bosch Gmbh | Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied |
| DE102004031595A1 (de) * | 2004-06-30 | 2006-02-09 | Robert Bosch Gmbh | Kraftstoffeinspritzvorrichtung |
| DE102005015997A1 (de) * | 2004-12-23 | 2006-07-13 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Steuerung des Einspritzventilgliedes |
| DE102006009659A1 (de) | 2005-07-25 | 2007-02-01 | Robert Bosch Gmbh | Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung |
| JP4270294B2 (ja) | 2007-03-05 | 2009-05-27 | 株式会社デンソー | 燃料噴射弁 |
| JP4270292B2 (ja) * | 2007-03-05 | 2009-05-27 | 株式会社デンソー | 燃料噴射弁 |
| JP4270293B2 (ja) * | 2007-03-05 | 2009-05-27 | 株式会社デンソー | 燃料噴射弁 |
| US7677036B2 (en) * | 2007-07-02 | 2010-03-16 | Hall David R | Hydraulic energy storage with an internal element |
| US20090008918A1 (en) * | 2007-07-02 | 2009-01-08 | Hall David R | Expandable Vehicle Frame |
| US7891453B2 (en) * | 2007-07-02 | 2011-02-22 | Schlumberger Technology Corporation | Energy storage in an elastic vessel |
| US7600376B2 (en) | 2007-07-02 | 2009-10-13 | Hall David R | Energy storage |
| US7908851B2 (en) * | 2007-07-02 | 2011-03-22 | Hall David R | Hydraulic energy storage with reinforced layer |
| FI123386B (fi) * | 2010-12-10 | 2013-03-28 | Waertsilae Finland Oy | Polttoaineen syöttölaite, mäntämoottori ja menetelmä mäntämoottorin käyttämiseksi |
| CN103370297B (zh) * | 2010-12-15 | 2015-10-07 | 株式会社大赛璐 | 乙酸的制备方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2056106A (en) * | 1935-07-24 | 1936-09-29 | John W Kuhn | Pneumatic spring |
| FR1192901A (fr) * | 1953-05-23 | 1959-10-29 | Pompes Et Injecteurs Tilliet S | Perfectionnements apportés aux appareils volumétriques à liquide, notamment aux pompes et aux injecteurs pour l'alimentation en combustible de moteurs thermiques |
| SE453860B (sv) * | 1984-12-17 | 1988-03-07 | Komatsu Mfg Co Ltd | Flexibel manovreringsanordning av korrugerad tryckslang |
| JPH0656162B2 (ja) * | 1987-03-03 | 1994-07-27 | トヨタ自動車株式会社 | ストロ−ク可変装置 |
| DE4407962C1 (de) * | 1994-03-10 | 1995-06-01 | Continental Ag | Stell- oder Antriebselement |
| DE19727992C2 (de) * | 1997-07-01 | 1999-05-20 | Siemens Ag | Ausgleichselement zur Kompensation temperaturbedingter Längenänderungen von elektromechanischen Stellsystemen |
| DE19940294A1 (de) * | 1999-08-25 | 2001-03-01 | Bosch Gmbh Robert | Kraftstoffeinspritzventil |
| DE19962177A1 (de) * | 1999-12-22 | 2001-07-12 | Siemens Ag | Hydraulische Vorrichtung zum Übertragen einer Aktorbewegung |
| DE10028768A1 (de) * | 2000-06-09 | 2001-12-20 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
| DE10046323B4 (de) * | 2000-09-19 | 2004-02-12 | Siemens Ag | Hydraulisches Spielausgleichssystem |
| DE10054017A1 (de) * | 2000-11-01 | 2002-05-08 | Bosch Gmbh Robert | Piezoaktormodul mit Vorrichtung zur Wärmeableitung |
-
2002
- 2002-06-10 DE DE10225686A patent/DE10225686B4/de not_active Expired - Fee Related
-
2003
- 2003-06-03 WO PCT/DE2003/001859 patent/WO2003104639A1/de not_active Ceased
- 2003-06-03 DE DE50308732T patent/DE50308732D1/de not_active Expired - Lifetime
- 2003-06-03 JP JP2004511685A patent/JP4273072B2/ja not_active Expired - Fee Related
- 2003-06-03 EP EP03756965A patent/EP1511933B1/de not_active Expired - Lifetime
-
2004
- 2004-12-09 US US11/008,455 patent/US7100895B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03104639A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10225686B4 (de) | 2005-08-04 |
| EP1511933B1 (de) | 2007-12-05 |
| JP2005529278A (ja) | 2005-09-29 |
| DE50308732D1 (de) | 2008-01-17 |
| JP4273072B2 (ja) | 2009-06-03 |
| WO2003104639A1 (de) | 2003-12-18 |
| DE10225686A1 (de) | 2004-01-08 |
| US7100895B2 (en) | 2006-09-05 |
| US20050140072A1 (en) | 2005-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1511933B1 (de) | Hubübertragungselement für ein einspritzventil | |
| EP1020936B1 (de) | Vorrichtung zur Übertragung des Auslenkung eines Aktors | |
| DE102009015738B4 (de) | Hydraulischer Hubübersetzer und Injektor zur Dossierung von Fluiden | |
| EP1210517B1 (de) | Ventil zum steuern von flüssigkeiten | |
| EP1490594A1 (de) | Kraftstoffeinspritzventil | |
| EP2440769B1 (de) | Einspritzventil mit übertragungseinheit | |
| WO2001023744A1 (de) | Ventil zum steuern von flüssigkeiten | |
| DE10019764B4 (de) | Ventil zum Steuern von Flüssigkeiten | |
| WO2003052261A1 (de) | Vorrichtung zum übersetzen einer auslenkung eines aktors, insbesondere für ein einspritzventil | |
| DE10217594A1 (de) | Brennstoffeinspritzventil | |
| DE3414821C2 (de) | Dichtungsanordnung | |
| WO2000055492A1 (de) | Brennstoffeinspritzventil | |
| DE10353045A1 (de) | Kraftstoffeinspritzventil | |
| EP1519035B1 (de) | Brennstoffeinspritzventil | |
| WO2005019638A1 (de) | Kraftstoffeinspritzventil für brennkraftmaschinen | |
| WO2008145330A1 (de) | Hochdruck-einspritzinjektor für brennkraftmaschinen mit einer knicklaststeigernden steuerstangenabstützung über unter hochdruck stehendem kraftstoff | |
| DE102014223403A1 (de) | Hydrolager sowie Kraftfahrzeug mit einem derartigen Hydrolager | |
| DE10132756B4 (de) | Stellglied für Schaltelemente von Kraftstoff-Einspritzvorrichtungen | |
| DE102005045893A1 (de) | Hydraulische Kompensationseinrichtung | |
| WO2005031152A1 (de) | Einspritzventil mit einem hydraulischen ausgleichselement | |
| DE102018219017A1 (de) | Elektrisch betätigbares Ventil | |
| EP2059692A1 (de) | Hydraulisch gedämpftes aggregatlager | |
| WO2001027466A1 (de) | Druckübersetzer für ein kraftstoffeinspritzsystem für brennkraftmaschinen | |
| DE102006036782B4 (de) | Injektor | |
| DE102015226473A1 (de) | Hydraulische Kopplereinheit und Kraftstoffeinspritzventil mit einer solchen |
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: 20041001 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS VDO AUTOMOTIVE AG |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 50308732 Country of ref document: DE Date of ref document: 20080117 Kind code of ref document: P |
|
| RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: VDO AUTOMOTIVE AG |
|
| ET | Fr: translation filed | ||
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] | ||
| RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: CONTINENTAL AUTOMOTIVE GMBH |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20080908 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20071205 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080630 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20180630 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20180626 Year of fee payment: 16 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50308732 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200101 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190630 |