EP3260655A1 - Pompe à vide avec alimentation en gaz d'arrêt - Google Patents

Pompe à vide avec alimentation en gaz d'arrêt Download PDF

Info

Publication number
EP3260655A1
EP3260655A1 EP17020249.3A EP17020249A EP3260655A1 EP 3260655 A1 EP3260655 A1 EP 3260655A1 EP 17020249 A EP17020249 A EP 17020249A EP 3260655 A1 EP3260655 A1 EP 3260655A1
Authority
EP
European Patent Office
Prior art keywords
gas
drive
vacuum pump
pump
sealing gas
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
Application number
EP17020249.3A
Other languages
German (de)
English (en)
Other versions
EP3260655B1 (fr
Inventor
Jürgen Dirscherl
Gerhard Rüster
Markus Prasse
Frank Gitmans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vacuubrand GmbH and Co KG
Original Assignee
Vacuubrand GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vacuubrand GmbH and Co KG filed Critical Vacuubrand GmbH and Co KG
Publication of EP3260655A1 publication Critical patent/EP3260655A1/fr
Application granted granted Critical
Publication of EP3260655B1 publication Critical patent/EP3260655B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/12—Sealing arrangements in rotary-piston machines or engines for other than working fluid
    • F01C19/125—Shaft sealings specially adapted for rotary or oscillating-piston machines or engines

Definitions

  • the invention relates to a vacuum pump with a sealing gas supply having the features of the preamble of claim 1.
  • sealing gas in the region of the shaft seal arrangement between the bearing section on the motor housing of the drive motor and the pump chamber in the pump chamber is a well-known method to achieve that the drive space in the motor housing including the bearing section does not come into contact with the gaseous media, the be promoted by the at least one gas conveying element in the pump chamber of the pump unit. This is particularly important for vacuum pumps in the laboratory operation of considerable importance, because there the media are sometimes chemically aggressive ( DE 102 07 929 A1 ).
  • known vacuum pump is a screw vacuum pump, in which two rotor shafts are rotatably mounted in the pump chamber of the pump unit, roll their helical rotors together.
  • the drive shafts of the two rotors extend into the drive space of the motor housing in which corresponding drive components are located.
  • the drive shafts of the two screw rotors are cantilevered. This means that the drive shafts are indeed rotatably mounted in the bearing section, but that no bearings are provided on the projecting into the pump chamber of the pump housing ends of the drive shafts. In this way, bearings are avoided in this area, so that shaft seal assemblies are avoided on the suction side of the rotor shafts.
  • the shaft seal assembly which is preferably in the form of a labyrinth seal, is supplied with sealing gas under pressure from an external purge gas source via a vent passage to prevent oil from entering the rotor section from the bearing portion.
  • this vacuum pump is not well suited in conjunction with an external barrier gas source.
  • the sealing gas blower is located in the interior of the vacuum pump, namely between the pumping unit and the drive motor, preferably in the interior of the pumping chamber in the pump housing of the pump unit.
  • the sealing gas blower sucks sealing gas directly from outside via the shaft seal arrangement and blows it into the suction chamber in the direction of the outlet.
  • the limited fan wheel diameter limits the performance of the purge gas fan.
  • the shaft seal arrangement is preferably one which operates without sliding seals, in particular with labyrinth seals.
  • a barrier gas monitoring is provided by which a relevant parameter of the barrier gas can be detected.
  • Which parameter of the sealing gas is relevant in the specific application arises from the requirements of the specific application.
  • One parameter may be the volume flow of the sealing gas in the barrier gas line.
  • Another relevant parameter may be the pressure of the barrier gas at or in the course of the barrier gas line.
  • the most general relevant parameter is the simple existence of sealing gas, so whether at the sealing gas line at all a sealing gas pressure is present.
  • a control signal is output from a control device connected to the purge gas monitoring and / or a control function for the vacuum pump is triggered.
  • a gas flow measuring device is provided as barrier gas monitoring and arranged in or on the vacuum pump so that the barrier gas flow in the barrier gas line can be measured by means of the gas flow measuring device.
  • a control signal is output by the control device and / or a control function is triggered when the barrier gas flow in the direction of the shaft seal arrangement falls below a certain value.
  • a gas pressure measuring device may be provided which detects the barrier gas pressure as a relevant parameter.
  • a further preferred teaching of the invention may alternatively or cumulatively be provided as a barrier gas monitoring a differential pressure measuring device. This is then arranged in or on the vacuum pump so that the pressure of the sealing gas at or in the course of the sealing gas line (the sealing gas pressure) and the pressure at or downstream of the outlet of the pump unit (the outlet pressure) can be detected.
  • a control signal is emitted by the control device and / or a control function is triggered when the pressure difference between the sealing gas pressure and the outlet pressure falls below a certain value.
  • the differential pressure measuring device may for example consist of two different pressure measuring devices, one for the sealing gas pressure, the other for the outlet pressure. Their measured values can then be compared with one another in the differential pressure measuring device or in the superordinate control device and lead to the desired output signal. According to a particularly preferred teaching of the invention, it is provided that the differential pressure measuring device is designed as a relative pressure sensor.
  • the teaching of the invention is applicable to the use of externally supplied sealing gas.
  • the application of the teaching of the invention is particularly preferred if the barrier gas line is connected or connectable to a blocking gas blower from which sealing gas can be conveyed under pressure into the blocking gas line.
  • the sealing gas blower is designed as part of the vacuum pump. Most preferably, the sealing gas blower is then drivable by a drive shaft of the vacuum pump.
  • valve arrangement is provided between the sealing gas blower and the sealing gas line, which, preferably, to the control device connected.
  • a valve arrangement makes it possible to control the barrier gas flow or, preferably, to regulate it.
  • the valve arrangement is preferably connected to the control device.
  • control signal to be output by the control device this may be an audible warning signal, but it may alternatively or additionally be an optical warning signal, for example a light indicator. Of particular importance is also an electronic warning signal that can be issued alternatively or additionally, for example via an interface to a computer monitoring system.
  • this may relate to a change in the barrier gas flow, in particular when a valve arrangement is provided on the barrier gas conduit. So you can, for example, provide a constant promotional blocking gas blower, but throttled full power through the valve assembly and then when the barrier gas pressure drops, the valve assembly so control that the barrier gas flow is increased and thus increases the sealing gas pressure. Alternatively or additionally, it may be provided that the vacuum pump is switched off altogether when the sealing gas pressure becomes so low that the safe operation of the vacuum pump is no longer ensured under the present boundary conditions.
  • the sealing gas blower is not or not exclusively used.
  • the barrier gas line can be connected by disconnecting from the blocking gas blower and / or by means of the valve arrangement to an external blocking gas source.
  • the sealing gas blower is an integral part of the pump unit and in the interior of the pump unit, in particular in the interior of the pump housing, namely arranged in the pump chamber.
  • the blocking gas blower therefore builds relatively small, the flow rate of the sealing gas blower is relatively limited.
  • the sealing gas blower is externally mounted on the motor housing, preferably on the side remote from the pump housing, and is drivingly coupled to the drive shaft.
  • the arrangement can be clear overall be greater than the sealing gas blower realized in the prior art.
  • a sealing gas pressure of about 50 mbar can be achieved. This is significantly more than the integrated construction of the prior art.
  • the prior art has already addressed the preferred embodiment of vacuum pumps of the type in question as screw vacuum pumps. All variants of vacuum pumps discussed in the prior art are also covered by the present invention. However, the embodiment of the vacuum pump is preferred as a screw vacuum pump.
  • Flush mounted drive shafts are particularly useful, to which the detailed explanation in the prior art from the DE 102 07 929 A1 may be referenced.
  • Fig. 1 shows in a perspective view, front left, the sealing gas blower partially cut, the basic construction of a vacuum pump according to the invention.
  • the vacuum pump initially points to a pump unit 1, the in Fig. 1 right back with the ribbing 2 is shown.
  • the pump unit 1 has a pump housing 3.
  • Connected to the pump unit 1 is a drive motor 4 with a motor housing 5.
  • the motor housing 5 of the drive motor 4 can be seen in Fig. 1 in the middle.
  • At the bottom of the motor housing 5 of the drive motor 4 can be seen in Fig. 1 Support feet 6.
  • Fig. 3 shows a partial section with detail view. It can be seen here in the pump housing 3, a pump chamber 7 with an inlet 8 and an outlet 9. In the pump chamber 7 at least one gas conveying element 10 is arranged on a drive shaft 11.
  • a drive chamber 12 is formed in the motor housing 5, in which are located corresponding drive components of the drive motor 4, in particular a part of the drive shaft eleventh
  • two drive shafts 11 are actually provided, which are arranged horizontally next to one another and each carry a designed as a screw rotor gas conveying element 10 so that it is shown here in total in the illustrated Embodiment is a screw rotor vacuum pump.
  • a screw rotor vacuum pump This is not to be understood as limiting, the alternatives which are represented in the prior art as mentioned above apply.
  • FIG. 3 illustrated embodiment shows that the at least one drive shaft 11 extends from the drive chamber 12 in the pump chamber 7 and is rotatably mounted in the motor housing 5 at the transition to the pump housing 3 in a bearing portion 13.
  • the bearing portion 13 is formed here in a front-side bearing plate 13 'of the motor housing 5.
  • the drive shafts 11 are cantilevered. The remarks in the general part of the description will be noted here.
  • the drive chamber 12 is sealed off from the pump chamber 7 against the passage of gas from the pump chamber 7 into the drive chamber 12. This makes the bearing section 13 receiving bearing plate 13 '.
  • a shaft seal assembly 14 is provided which seals the at least one drive shaft 11. This is located between the bearing section 13, the in Fig. 3 right to the drive chamber 12 can be seen, and the left-lying pump chamber 7th
  • the shaft seal assembly 14 is connected to a sealing gas line 15 which extends in the illustrated and preferred embodiment in the body of the bearing plate 13 'radially outward and over which a sealing gas under pressure of the shaft seal assembly 13 can be fed.
  • a vacuum pump is shown in the drawing, in which a sealing gas monitoring 17; 20 is provided. Through this a relevant parameter of the barrier gas can be detected. Also provided is a control device 18, to which the sealing gas monitoring 17; 20 is connected. Then, when the relevant parameter of the sealing gas exceeds or falls below a certain value, the control device 18 can output a control signal and / or trigger a control function for the vacuum pump.
  • the sealing gas monitoring 17 according to the invention; 20 also works with a purge gas supplied from an external purge gas source.
  • the supply of sealing gas from an external barrier gas source is in the drawing only in Fig. 4 and shown there only in a relatively close relationship.
  • the present embodiments are primarily concerned with, but are not limited to, an internal purge gas source.
  • the sealing gas line 15 with a sealing gas blower 16, located in Fig. 3 right on the local shield of the drive motor 4 is connected.
  • the barrier gas line 15 is here connected via a sealing gas outer line 15 'with the sealing gas fan 16 fluidly.
  • the blocking gas outer line 15 ' can be optionally dissolved to possibly the sealing gas line 15 in the bearing plate 13' with an external gas barrier source, the in Fig. 1 and 3 not shown, connect.
  • the barrier gas line 15 is, as in Fig. 1 and 3 shown, by means of the sealing gas outer line 15 'connected to the sealing gas blower 16, so can be conveyed from the sealing gas blower 16 of sealing gas under pressure into the sealing gas line 15.
  • the blocking gas blower 16 is preferably, as shown here, designed as a part of the vacuum pump as a whole and is driven by a drive shaft 11 of the drive motor 4 from.
  • Fig. 1 and 3 can be seen in the context that according to a preferred embodiment of the invention as a barrier gas monitoring a gas flow measuring device 17 is provided. This is here arranged on the vacuum pump so that the barrier gas flow in the barrier gas line 15 by means of the gas flow measuring device 17 can be measured.
  • the gas flow measuring device 17 is an arrangement in which the gas flow rate is thermally measured.
  • a flow sensor 17 'located in the gas flow measuring device 17 which is connected to a control device 18 via a connecting line 17 ".
  • a control device 18 is provided, to which the gas flow-measuring device 17 is connected, in this case via the connection line 17 ".
  • the control device 18 inputs it A control signal can be issued and / or a control function can be triggered, which will be explained in more detail later on:
  • the limit value for the volume flow of the sealing gas can be static be predetermined, but it can also be set dynamically by the control device 18, so that it is able to adapt to the actual operating state of the vacuum pump during operation.
  • the control device 18 may be part of the vacuum pump itself, but it may also be arranged elsewhere, as in the illustrated embodiment.
  • a muffler 19 is arranged at the outlet 9 of the pump chamber 7 of the pump unit 1.
  • Fig. 4 shows one Fig. 3 corresponding sectional view, in which also the sealing gas blower 16 in the same place as at Fig. 3 located, including the sealing gas outer line 15 ', which is also in Fig. 4 sees.
  • a differential pressure measuring device 20 is provided as a barrier gas monitoring. This is arranged here in or on the vacuum pump so that the pressure of the sealing gas at or in the course of the sealing gas line 15 (sealing gas pressure) and the pressure at or downstream of the outlet 9 of the pump unit 1 (the outlet pressure) can be detected by means of this device.
  • the differential pressure measuring device 20 via connection lines 20 'to the in Fig. 4 indicated control device 18 connected.
  • the control device 18 when the pressure difference between the sealing gas pressure and the outlet pressure falls below a certain value, a control signal can be emitted and / or a control function can be triggered.
  • the differential pressure measuring device 20 is designed as a relative pressure sensor which is connected via a first line 21 to the inlet of the sealing gas line 15, and via a second line 22 to the muffler 19 and thus ultimately to the outlet 9 (FIG. the discharge port) of the pump housing 3 is connected.
  • connection (first line 21) of the differential pressure measuring device 20 facing the outlet 9 (the discharge connection) of the pumping unit 1 is compatible with the media to be pumped by the pumping unit 1 as well as their temperatures.
  • the barrier gas line 15 facing port, ie the second conduit 22, the differential pressure measuring device 20 to be compatible with substantially the sealing gas.
  • Fig. 4 is only hinted at a variant in which it is provided that between the sealing gas fan 16 and the sealing gas line 15, a valve assembly 23 is provided, which, preferably, is connected to the control device 18.
  • control signal is an acoustic and / or an optical and / or an electronic warning signal and / or that the control function involves changing the blocking gas flow or switching off the drive motor 4 is.
  • Fig. 2 differs from Fig. 1 in that in Fig. 2 it is provided that the barrier gas line 15 can be connected by disconnecting from the blocking gas blower 16 (and / or with the aid of the valve arrangement 23) to an external blocking gas source. You can see in Fig. 2 in that there the barrier gas outer line 15 'does not lead to the blocking gas blower 16, this is ineffective because not connected.
  • the sealing gas outer line 15 'rather leads vertically upwards and is broken off there. So you can go to an external, in Fig. 2 lead not shown sealing gas source.
  • Fig. 1 to 4 is common that is provided in the illustrated and preferred embodiment here that the sealing gas blower 16 outside the motor housing 5, here and preferably on the side facing away from the pump housing 3 side, and is coupled drivingly with the drive shaft 11.
  • the sealing gas blower 16 one comes to much higher flow rates of the sealing gas blower 16, so that the requirements of the sealing gas pressure at the appropriate points can be met well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP17020249.3A 2016-06-24 2017-06-12 Pompe à vide avec alimentation en gaz d'arrêt Active EP3260655B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016003924.6U DE202016003924U1 (de) 2016-06-24 2016-06-24 Vakuumpumpe mit Sperrgaszufuhr

Publications (2)

Publication Number Publication Date
EP3260655A1 true EP3260655A1 (fr) 2017-12-27
EP3260655B1 EP3260655B1 (fr) 2019-07-31

Family

ID=59053865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17020249.3A Active EP3260655B1 (fr) 2016-06-24 2017-06-12 Pompe à vide avec alimentation en gaz d'arrêt

Country Status (2)

Country Link
EP (1) EP3260655B1 (fr)
DE (1) DE202016003924U1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812926A1 (de) * 1988-04-18 1989-10-26 Dickow Pumpen Kg Kreiselpumpe mit magnetkupplung
US4993930A (en) * 1987-07-22 1991-02-19 Hitachi, Ltd. Vacuum pump apparatus and shaft sealing device therefor
US5228298A (en) * 1992-04-16 1993-07-20 Praxair Technology, Inc. Cryogenic rectification system with helical dry screw expander
DE19544994A1 (de) 1995-12-02 1997-06-05 Balzers Pfeiffer Gmbh Mehrwellenvakuumpumpe
WO2000042322A1 (fr) * 1999-01-11 2000-07-20 E.I. Du Pont De Nemours And Company Compresseur a vis
DE10207929A1 (de) 2002-02-23 2003-09-04 Leybold Vakuum Gmbh Vakuumpumpe
DE102010055798A1 (de) 2010-08-26 2012-03-01 Vacuubrand Gmbh + Co Kg Vakuumpumpe
US20120230857A1 (en) * 2011-03-11 2012-09-13 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Water injection type screw fluid machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1010915A3 (nl) * 1997-02-12 1999-03-02 Atlas Copco Airpower Nv Inrichting voor het afdichten van een rotoras en schroefcompressor voorzien van dergelijke inrichting.
DE102005015212A1 (de) * 2005-04-02 2006-10-05 Leybold Vacuum Gmbh Wellendichtung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993930A (en) * 1987-07-22 1991-02-19 Hitachi, Ltd. Vacuum pump apparatus and shaft sealing device therefor
DE3812926A1 (de) * 1988-04-18 1989-10-26 Dickow Pumpen Kg Kreiselpumpe mit magnetkupplung
US5228298A (en) * 1992-04-16 1993-07-20 Praxair Technology, Inc. Cryogenic rectification system with helical dry screw expander
DE19544994A1 (de) 1995-12-02 1997-06-05 Balzers Pfeiffer Gmbh Mehrwellenvakuumpumpe
WO2000042322A1 (fr) * 1999-01-11 2000-07-20 E.I. Du Pont De Nemours And Company Compresseur a vis
DE10207929A1 (de) 2002-02-23 2003-09-04 Leybold Vakuum Gmbh Vakuumpumpe
DE102010055798A1 (de) 2010-08-26 2012-03-01 Vacuubrand Gmbh + Co Kg Vakuumpumpe
US20120230857A1 (en) * 2011-03-11 2012-09-13 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Water injection type screw fluid machine

Also Published As

Publication number Publication date
DE202016003924U1 (de) 2017-09-27
EP3260655B1 (fr) 2019-07-31

Similar Documents

Publication Publication Date Title
EP1163452B1 (fr) Compresseur a vis
AT501757B1 (de) Radiale dichtungsvorrichtung
EP1163451B1 (fr) Compresseur a vis
EP2060794A2 (fr) Pompe à vide dotée d'une pompe à lubrifiant
DE102014000846A1 (de) Schraubenspindelpumpe
EP2910783A1 (fr) Pompe à vis à broche double dans une construction à simple flux
DE2825616C2 (de) Lager- und Dichtungsanordnung an den Wellen einer Zahnradpumpe
DE3722164C2 (de) Turbomolekularpumpe
EP2322803B1 (fr) Pompe dotée d un embrayage magnétique
EP2766608B1 (fr) Pompe centrifuge pour fluide contenant des particules solides avec fermeture d'un interstice
EP3371458B1 (fr) Pompe à vide sèche
DE102013101164B4 (de) Schraubenspindelpumpe
EP3260655B1 (fr) Pompe à vide avec alimentation en gaz d'arrêt
EP3026303A1 (fr) Pompe à vide, accessoire et joint d'étanchéité
DE102014104067A1 (de) Flüssigkeitspumpe
DE60105249T2 (de) Vakuumpumpe
EP0942172B1 (fr) Pompe à vide à arbres d'entraínements multiples
WO2000053931A1 (fr) Compresseur a vis
DE102016007672A1 (de) Vakuumpumpe mit Sperrgaszufuhr
BE1023287B1 (de) Kompressorsystem und Kompressor
DE102012207145A1 (de) Verdichter, insbesondere Seitenkanalverdichter sowie Verfahren zum Pumpen eines insbesondere gasförmigen Fluides mit Hilfe eines solchen Verdichters
DE102017206240B3 (de) Schraubenverdichteranordnung
EP2187505A2 (fr) Moteur électrique pour dispositifs de fermeture de bouteilles
EP2256293B1 (fr) Moteur à roue dentée et procédé de montage
DE10303419B4 (de) Baueinheit mit einem ölgefüllten Gehäuse und einer durch das Gehäuse hindurchgeführten Welle

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171115

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180628

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190328

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017001861

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1161090

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190731

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

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: 20190731

Ref country code: PT

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: 20191202

Ref country code: BG

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: 20191031

Ref country code: SE

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: 20190731

Ref country code: NL

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: 20190731

Ref country code: NO

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: 20191031

Ref country code: LT

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: 20190731

Ref country code: HR

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: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

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: 20191130

Ref country code: RS

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: 20190731

Ref country code: AL

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: 20190731

Ref country code: LV

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: 20190731

Ref country code: GR

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: 20191101

Ref country code: ES

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: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

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: 20190731

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190731

Ref country code: PL

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: 20190731

Ref country code: EE

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: 20190731

Ref country code: DK

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: 20190731

Ref country code: RO

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: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

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: 20190731

Ref country code: SK

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: 20190731

Ref country code: IS

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: 20200224

Ref country code: SM

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: 20190731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017001861

Country of ref document: DE

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

PG2D Information on lapse in contracting state deleted

Ref country code: IS

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

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: 20191030

26N No opposition filed

Effective date: 20200603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

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: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

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: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200612

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

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: 20190731

Ref country code: CY

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: 20190731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

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: 20190731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230628

Year of fee payment: 7

Ref country code: DE

Payment date: 20230619

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20230621

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230622

Year of fee payment: 7

Ref country code: CH

Payment date: 20230702

Year of fee payment: 7