EP3080458B1 - Compressor - Google Patents

Compressor Download PDF

Info

Publication number
EP3080458B1
EP3080458B1 EP14823898.3A EP14823898A EP3080458B1 EP 3080458 B1 EP3080458 B1 EP 3080458B1 EP 14823898 A EP14823898 A EP 14823898A EP 3080458 B1 EP3080458 B1 EP 3080458B1
Authority
EP
European Patent Office
Prior art keywords
compressor
volume
oil
oil discharge
separation apparatus
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.)
Active
Application number
EP14823898.3A
Other languages
German (de)
French (fr)
Other versions
EP3080458A1 (en
Inventor
Dmytro Zaytsev
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.)
GEA Refrigeration Germany GmbH
Original Assignee
GEA Refrigeration Germany GmbH
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 GEA Refrigeration Germany GmbH filed Critical GEA Refrigeration Germany GmbH
Publication of EP3080458A1 publication Critical patent/EP3080458A1/en
Application granted granted Critical
Publication of EP3080458B1 publication Critical patent/EP3080458B1/en
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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor

Definitions

  • the present invention relates to a screw compressor according to the preamble of patent claim 1.
  • screw compressors that work in a dry-running mode of operation and screw compressors that work in an oil-flooded mode of operation.
  • oil plays a role both as a lubricant and as a sealant in the compression process itself.
  • an oil separator is generally provided on a high-pressure side of such screw compressors.
  • an oil separator for example of a semi-hermetic compact screw compressor, consists of two spaces or volumes which are separated from knitted metal by a demistor, also referred to as a droplet separator or aerosol separator.
  • Compressed gas-oil mixture passes from a pressure pipe, which is fed by a compression device or compression unit in the form of at least one screw rotor, into the first space or the first volume in which a Oil pre-separation takes place before it passes through the demistor.
  • a possible embodiment of a compressor according to the invention more precisely a screw compressor 10 according to the invention, which is also referred to below as compressor 10 for short, is shown.
  • the compressor 10 has a housing 12 and an electric motor 14 arranged in the housing 12. Furthermore, the compressor 10 has a drive shaft 16 and a compression device 18, which has a screw rotor 20 and a second screw rotor 22 which is in engagement with the first screw rotor 20.
  • the screw rotors 20, 22 are rotatably driven directly via the drive shaft 16 (in alternative embodiments indirectly, for example via a gear arrangement). Alternatively, a screw compressor 10 with only one screw rotor is also conceivable.
  • the first screw rotor 20 is arranged to be rotatable about a first axis of rotation arranged in the axial direction.
  • the second screw rotor 22 is arranged to be rotatable about a second axis of rotation which extends parallel to the first axis of rotation.
  • Both the first and the second helical rotor 20, 22 are arranged in a compression chamber 24 which is at least partially fluid-tight towards the surroundings and opens into a high-pressure volume 26.
  • the compressor 10 of the embodiment described works in an oil-flooded operating mode, in which oil located in the compressor 10 is used both as a lubricant and (for example during the compression process itself) as a sealant.
  • oil located in the compressor 10 is used both as a lubricant and (for example during the compression process itself) as a sealant.
  • the medium to be compressed for example refrigerant, oil, in particular in the form of drops or as an aerosol, is entrained or mixed with oil.
  • the compressed medium-oil mixture gas-oil mixture
  • the high pressure volume 26 via a pressure pipe 28.
  • the compressor 10 has a first volume 32 in the form of a first chamber and a second volume 34 in the form of a second chamber, the first volume 32 and the second volume 34 being separated by a separating device 36, which has a separating wall 38.
  • the partition wall has a first partition wall section 38-1 in the form of a perforated plate and a second partition wall section 38-2, which is connected to the first partition wall section 38-1 and is designed as a material section without a cutout. While the first partition wall section 38-1 is arranged in an upper region of the compressor 10 or the first volume 32, the second partition wall section 38-2 is arranged in a lower region of the compressor.
  • a demistor 40 is arranged in or on the partition wall 38.
  • the first volume 32 has an approximately cylindrical housing side wall 42 which is delimited at a first end 44 by an end wall 46 and at a second end 48 opposite the end wall 46 by the separating device 36, in particular partition 38. From the second volume 34, the compressed medium then passes to a compressor outlet 50, from where it is available for the respective desired application.
  • An oil pre-separation takes place in the first volume 32, into which the compressed medium including the oil carried along is introduced via the pressure pipe 28.
  • oil is deposited on a housing inner wall 52 of the first volume 32.
  • an oil discharge device or oil drainage device or oil catching device 54 is arranged on the separating device 36, in particular separating wall 38.
  • demistor 40 which for this purpose has a metal mesh or metal mesh which is arranged in the area through which the flow passes.
  • a metal mesh or metal mesh which is arranged in the area through which the flow passes.
  • the first volume 32 is approximately cylindrical, so that the partition 38 with the demistor 40 (ie the partition 38 on which the demistor 40 is arranged) has an approximately circular base area.
  • the partition 38 with the demistor 40 ie the partition 38 on which the demistor 40 is arranged
  • has an approximately circular base area Alternatively, other designs (rectangular, hexagonal or octagonal or with many corners) are also possible provided) is conceivable, but the approximately circular design is often preferable for pressure vessels in particular.
  • the oil discharge device or oil collecting device 54 is embodied in the form of a channel and extends inward from a radially outer end of the separating device 36, in particular separating wall 38.
  • the oil draining device or oil collecting device 54 which is in the form of a channel, has a delimitation 56, in particular a wall, which is approximately L-shaped in cross section and which is arranged on the separating device 36, in the embodiment described here on the partition 38 and with the housing side wall 42 or the housing inner wall 52 is in contact, which forms a lateral delimitation of the oil discharge device or oil catching device 54, so that it overall has a channel shape (approximately U-shaped cross section).
  • the oil draining device or oil collecting device 54 extends over a segment-like section, more precisely a segment-like section of the partition 38. Where the oil draining device or oil collecting device 54 is not formed, the oil collecting therein can drain into an oil sump located in the compressor.
  • the oil discharge device or oil catching device 54 is not formed or is cut out on a side located at the bottom during operation of the compressor 10 in a (circular) sector of 20 ° to 90 °, preferably from 60 ° to 80 ° inclusive.
  • this means that the oil discharge device or oil catching device 54 has a sector angle of 270 ° to 340 °, preferably 280 ° to 300 °. In the specifically described embodiment, the sector angle is 290 °.
  • the oil discharge device or oil catching device 54 is arranged completely in the first volume 32.
  • the oil discharge device or oil catching device 54 has an oil outlet or oil outlet or an oil outlet opening 55 which is arranged in the first volume 32, in particular therefore opens there. In this way, the oil caught or discharged by the oil discharge device or oil catching device 54 is discharged or discharged into the first volume 32.
  • the oil discharge device or oil catching device 54 in alternative embodiments is also reduced on or in the partition 38 and / or the demistor 40, for example as a recess or also in the form of a point Material accumulation, for example groove can be formed.
  • the embodiment described above according to Fig. 1 and Fig. 2 however, an effective construction ensures that optimum oil drainage is ensured.

Description

Die vorliegende Erfindung betrifft einen Schraubenverdichter gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a screw compressor according to the preamble of patent claim 1.

Es gibt sowohl Schraubenverdichter , die in einer Trockenlauf-Betriebsweise arbeiten, als auch Schraubenverdichter, die in einer ölüberfluteten Betriebsweise arbeiten. Bei den zuletzt genannten Schraubenverdichtern spielt Öl sowohl als Schmiermittel eine Rolle, als auch beim Verdichtungsvorgang selbst als Dichtmittel. Um jedoch keinen unerwünschten Öleintrag in eine Kälteanlage zu erhalten, die von dem Verdichter mit verdichtetem Kältemittel versorgt wird, ist in der Regel ein Ölabscheider auf einer Hochdruckseite solcher Schraubenverdichter vorgesehen.There are both screw compressors that work in a dry-running mode of operation and screw compressors that work in an oil-flooded mode of operation. In the last-mentioned screw compressors, oil plays a role both as a lubricant and as a sealant in the compression process itself. However, in order not to receive any undesired oil entry into a refrigeration system that is supplied with compressed refrigerant by the compressor, an oil separator is generally provided on a high-pressure side of such screw compressors.

Nach dem Stand der Technik besteht ein Ölabscheider beispielsweise eines semihermetischen Kompaktschraubenverdichters aus zwei Räumen bzw. Volumina, die durch einen Demistor, auch als Tropfenabscheider oder Aerosolabscheider bezeichnet, aus Metallgestrick getrennt sind. Komprimiertes Gas-Ölgemisch gelangt aus einem Druckrohr, das von einer Verdichtungsvorrichtung bzw. Verdichtungseinheit in Form wenigstens eines Schraubenläufers gespeist wird, in den ersten Raum bzw. das erste Volumen, in dem eine Öl-Vorabscheidung stattfindet, bevor es durch den Demistor hindurchtritt.According to the state of the art, an oil separator, for example of a semi-hermetic compact screw compressor, consists of two spaces or volumes which are separated from knitted metal by a demistor, also referred to as a droplet separator or aerosol separator. Compressed gas-oil mixture passes from a pressure pipe, which is fed by a compression device or compression unit in the form of at least one screw rotor, into the first space or the first volume in which a Oil pre-separation takes place before it passes through the demistor.

Ein Teil des Öls scheidet sich an einer Begrenzungswand des ersten Volumens ab und strömt trägheitsbedingt an dieser Wand nach unten. Nachteilig ist es, dass ein Teil dieses Ölstroms in die Nähe des Demistors gelangt und sich dort wieder mit dem verdichteten Medium, beispielsweise Kältemittel-Gas, vermischt, da es von der Gasströmung entsprechend mitgerissen wird. Solche oder ähnliche Verdichter sind beispielsweise aus der DE 198 45 993 A1 , der WO 2010/012570 A2 oder der DE 10 2010 002 649 A1 bekannt. Ausgehend hiervon ist es die Aufgabe der vorliegenden Erfindung, einen Schraubenverdichter anzugeben, der eine möglichst effiziente Ölabscheidung aufweist.Part of the oil is deposited on a boundary wall of the first volume and flows down this wall due to inertia. It is disadvantageous that part of this oil flow reaches the vicinity of the demistor and mixes there again with the compressed medium, for example refrigerant gas, since it is correspondingly entrained by the gas flow. Such or similar compressors are for example from the DE 198 45 993 A1 , of the WO 2010/012570 A2 or the DE 10 2010 002 649 A1 known. Based on this, the object of the present invention is to specify a screw compressor which has the most efficient possible oil separation.

Diese Aufgabe wird durch einen Schraubenverdichter mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved by a screw compressor with the features of claim 1.

Der Schraubenverdichter, der eine Verdichtungsvorrichtung, insbesondere in Form wenigstens eines Schraubenläufers aufweist, die einer Ölabscheidevorrichtung ein verdichtetes Medium zuführt ist derart ausgebildet, dass:

  • der Verdichter ein erstes Volumen und ein zweites Volumen, sowie eine die beiden Volumina trennende Trennvorrichtung aufweist,
  • das erste Volumen durch eine Gehäuseinnenwand und eine Trennvorrichtung, welche das erste Volumen von dem zweiten Volumen trennt, begrenzt ist, und
  • die Trennvorrichtung einen Demistor aufweist.
Das verdichtete Medium, das insbesondere Kältemittel (mit einem Ölanteil) sein kann, gelangt dabei durch den Demistor von dem ersten Volumen in das zweite Volumen. An der Trennvorrichtung ist eine Ölabführvorrichtung bzw. Ölfangvorrichtung angeordnet, die es verhindert, dass bereits an der Gehäuseinnenwand des ersten Volumens abgeschiedenes Öl durch das strömende verdichtete Medium wieder mitgerissen und somit wieder mit demselben vermischt wird.The screw compressor, which has a compression device, in particular in the form of at least one screw rotor, which feeds a compressed medium to an oil separation device, is designed in such a way that:
  • the compressor has a first volume and a second volume, as well as a separating device separating the two volumes,
  • the first volume is delimited by a housing inner wall and a separation device which separates the first volume from the second volume, and
  • the separator has a demistor.
The compressed medium, which can in particular be a refrigerant (with an oil component), passes through the demistor from the first volume into the second volume. An oil discharge device or oil catching device is arranged on the separating device, which prevents oil already separated on the inner wall of the housing of the first volume from being carried away again by the flowing compressed medium and thus being mixed again with the same.

Weitere optionale Merkmale der Erfindung sind in den Unteransprüchen, sowie der folgenden Figurenbeschreibung angegeben. Die beschriebenen jeweiligen Merkmale können einzeln oder in beliebigen Kombinationen realisiert sein. Die Erfindung wird demnach im Folgenden mit Bezug auf die beiliegenden Zeichnungen anhand von beispielhaften Ausführungsformen beschrieben. In den Zeichnungen zeigen:

  • Fig. 1 eine Ansicht einer beispielhaften Ausführungsform eines erfindungsgemäßen Verdichters; und
  • Fig. 2 eine vergrößerte Darstellung eines Teilabschnitts der Fig.1.
Further optional features of the invention are specified in the subclaims and the following description of the figures. The respective features described can be implemented individually or in any combination. The invention is therefore described below with reference to the accompanying drawings using exemplary embodiments. In the drawings show:
  • Fig. 1 a view of an exemplary embodiment of a compressor according to the invention; and
  • Fig. 2 an enlarged view of a portion of the Fig.1 .

In Fig. 1 ist eine mögliche Ausführungsform eines erfindungsgemäßen Verdichters, genauer eines erfindungsgemäßen Schraubenverdichters 10, der nachstehend auch kurz als Verdichter 10 bezeichnet wird, dargestellt. Der Verdichter 10 weist ein Gehäuse 12 und einen in dem Gehäuse 12 angeordneten Elektromotor 14 auf. Ferner weist der Verdichter 10 eine Antriebswelle 16 und eine Verdichtungsvorrichtung 18, die einen Schraubenläufer 20 und einen zweiten Schraubenläufer 22, der mit dem ersten Schraubenläufer 20 in Eingriff steht, aufweist. Die Schraubenläufer 20, 22 werden über die Antriebswelle 16 direkt (in alternativen Ausführungsformen indirekt, beispielsweise über eine Getriebeanordnung) dreh-angetrieben. Alternativ ist auch ein Schraubenverdichter 10 mit nur einem Schraubenläufer denkbar.In Fig. 1 a possible embodiment of a compressor according to the invention, more precisely a screw compressor 10 according to the invention, which is also referred to below as compressor 10 for short, is shown. The compressor 10 has a housing 12 and an electric motor 14 arranged in the housing 12. Furthermore, the compressor 10 has a drive shaft 16 and a compression device 18, which has a screw rotor 20 and a second screw rotor 22 which is in engagement with the first screw rotor 20. The screw rotors 20, 22 are rotatably driven directly via the drive shaft 16 (in alternative embodiments indirectly, for example via a gear arrangement). Alternatively, a screw compressor 10 with only one screw rotor is also conceivable.

Der erste Schraubenläufer 20 ist um eine erste, in axialer Richtung angeordnete Drehachse drehbar angeordnet. Der zweite Schraubenläufer 22 ist um eine zweite Drehachse, welche sich parallel zu der ersten Drehachse erstreckt, drehbar angeordnet. Sowohl der erste als auch der zweite Schraubenläufer 20, 22 sind in einem Verdichtungsraum 24 angeordnet, der gegen die Umgebung hin wenigstens abschnittweise fluiddicht ausgebildet ist und in ein Hochdruckvolumen 26 mündet.The first screw rotor 20 is arranged to be rotatable about a first axis of rotation arranged in the axial direction. The second screw rotor 22 is arranged to be rotatable about a second axis of rotation which extends parallel to the first axis of rotation. Both the first and the second helical rotor 20, 22 are arranged in a compression chamber 24 which is at least partially fluid-tight towards the surroundings and opens into a high-pressure volume 26.

Der Verdichter 10 der beschriebenen Ausführungsform arbeitet in einer ölüberfluteten Betriebsweise, in welcher im Verdichter 10 befindliches Öl sowohl als Schmiermittel, als auch (beispielsweise beim Verdichtungsvorgang selbst) als Dichtmittel verwendet wird. Dies heißt, dass das zu verdichtende Medium, beispielsweise Kältemittel, Öl, insbesondere in Tropfenform oder als Aerosol, mitführt bzw. mit Öl vermischt ist. Nach dem durch die Verdichtungsvorrichtung 18 bewirkten Verdichtungsvorgang wird das verdichtete Medium -Öl-Gemisch (Gas-Öl-Gemisch) dann über das Hochdruckvolumen 26 über ein Druckrohr 28 einer Ölabscheidevorrichtung 30 zugeführt.The compressor 10 of the embodiment described works in an oil-flooded operating mode, in which oil located in the compressor 10 is used both as a lubricant and (for example during the compression process itself) as a sealant. This means that the medium to be compressed, for example refrigerant, oil, in particular in the form of drops or as an aerosol, is entrained or mixed with oil. After the compression process brought about by the compression device 18, the compressed medium-oil mixture (gas-oil mixture) is then fed to an oil separation device 30 via the high pressure volume 26 via a pressure pipe 28.

Der Verdichter 10 weist hierzu ein erstes Volumen 32 in Form einer ersten Kammer und ein zweites Volumen 34 in Form einer zweiten Kammer auf, wobei das erste Volumen 32 und das zweite Volumen 34 durch eine Trennvorrichtung 36, die eine Trennwand 38 aufweist, getrennt sind. Die Trennwand weist einen ersten Trennwandabschnitt 38-1 in Form eines Lochblechs und einen zweiten Trennwandabschnitt 38-2, der mit dem ersten Trennwandabschnitt 38-1 verbunden und als Materialabschnitt ohne Aussparung ausgebildet ist, auf. Während der erste Trennwandabschnitt 38-1 in einem oberen Bereich des Verdichters 10 bzw. dem ersten Volumen 32 angeordnet ist, ist der zweite Trennwandabschnitt 38-2 in einem unteren Bereich des Verdichters angeordnet. In bzw. an der Trennwand 38 ist ein Demistor 40 angeordnet. Das erste Volumen 32 weist eine in etwa zylinderförmige Gehäuseseitenwand 42 auf, die an einem ersten Ende 44 durch eine Stirnwand 46 und an einem der Stirnwand 46 gegenüberliegenden zweiten Ende 48 durch die Trennvorrichtung 36, insbesondere Trennwand 38, begrenzt ist. Vom zweiten Volumen 34 aus gelangt das verdichtete Medium dann zu einem Verdichterausgang 50, von wo aus es der jeweiligen gewünschten Anwendung zur Verfügung steht.For this purpose, the compressor 10 has a first volume 32 in the form of a first chamber and a second volume 34 in the form of a second chamber, the first volume 32 and the second volume 34 being separated by a separating device 36, which has a separating wall 38. The partition wall has a first partition wall section 38-1 in the form of a perforated plate and a second partition wall section 38-2, which is connected to the first partition wall section 38-1 and is designed as a material section without a cutout. While the first partition wall section 38-1 is arranged in an upper region of the compressor 10 or the first volume 32, the second partition wall section 38-2 is arranged in a lower region of the compressor. A demistor 40 is arranged in or on the partition wall 38. The first volume 32 has an approximately cylindrical housing side wall 42 which is delimited at a first end 44 by an end wall 46 and at a second end 48 opposite the end wall 46 by the separating device 36, in particular partition 38. From the second volume 34, the compressed medium then passes to a compressor outlet 50, from where it is available for the respective desired application.

In dem ersten Volumen 32, in das das verdichtete Medium samt dem mitgeführten Öl über das Druckrohr 28 eingebracht wird, erfolgt eine Öl-Vorabscheidung. Dabei schlägt sich Öl an einer Gehäuseinnenwand 52 des ersten Volumens 32 nieder. Um zu verhindern, dass Öl, das bereits an der Gehäuseinnenwand 52 abgeschieden wurde, wieder von dem strömenden verdichteten Medium mitgerissen wird, ist an der Trennvorrichtung 36, insbesondere Trennwand 38, eine Ölabführvorrichtung bzw. Ölablaufvorrichtung bzw. Ölfangvorrichtung 54 angeordnet.An oil pre-separation takes place in the first volume 32, into which the compressed medium including the oil carried along is introduced via the pressure pipe 28. In the process, oil is deposited on a housing inner wall 52 of the first volume 32. In order to prevent oil that has already been separated on the housing inner wall 52 from being swept away again by the flowing compressed medium, an oil discharge device or oil drainage device or oil catching device 54 is arranged on the separating device 36, in particular separating wall 38.

Weiteres mit dem strömenden verdichteten Medium vermischtes Öl wird dann beim Durchtreten des Demistors 40 abgeschieden, welcher hierfür ein Metallgestrick bzw. Metallgeflecht, das in dem durchströmten Gebiet angeordnet ist, aufweist. Es sei an dieser Stelle angemerkt, dass anstelle eines Metall- oder Drahtgestricks auch beispielsweise eine Lamellenkonstruktion denkbar wäre. Ein Metall- oder Drahtgestrick stellt jedoch eine stör-unanfällige und langlebige Konstruktion sicher.Further oil mixed with the flowing, compressed medium is then deposited when it passes through the demistor 40, which for this purpose has a metal mesh or metal mesh which is arranged in the area through which the flow passes. It should be noted at this point that instead of a metal or wire mesh, a lamellar construction, for example, would also be conceivable. A metal or wire mesh, however, ensures a long-lasting construction that is not susceptible to interference.

Das erste Volumen 32 ist, wie vorstehend erwähnt, in etwa zylinderförmig ausgebildet, so dass die Trennwand 38 mit dem Demistor 40 (d.h. die Trennwand 38, an welcher der Demistor 40 angeordnet ist) in etwa eine kreisförmige Grundfläche hat. Alternativ sind auch andere Ausgestaltungen (rechteckig, sechs- oder achteckig oder mit vielen Ecken versehen) denkbar, insbesondere für Druckbehälter ist aber die in etwa kreisförmige Ausgestaltung oftmals zu bevorzugen. Die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 ist kanalförmig ausgebildet und erstreckt sich von einem radial äußeren Ende der Trennvorrichtung 36, insbesondere Trennwand 38 nach innen.As mentioned above, the first volume 32 is approximately cylindrical, so that the partition 38 with the demistor 40 (ie the partition 38 on which the demistor 40 is arranged) has an approximately circular base area. Alternatively, other designs (rectangular, hexagonal or octagonal or with many corners) are also possible provided) is conceivable, but the approximately circular design is often preferable for pressure vessels in particular. The oil discharge device or oil collecting device 54 is embodied in the form of a channel and extends inward from a radially outer end of the separating device 36, in particular separating wall 38.

Die in Form eines Kanals ausgebildete Ölabführvorrichtung bzw. Ölfangvorrichtung 54 weist eine im Querschnitt in etwa L-förmig ausgebildete Begrenzung 56, insbesondere Wandung, auf, welche an der Trennvorrichtung 36, in der vorliegend beschriebenen Ausführungsform an der Trennwand 38 angeordnet und mit der Gehäuseseitenwand 42 bzw. der Gehäuseinnenwand 52 in Anlage ist, welche eine seitliche Begrenzung der Ölabführvorrichtung bzw. Ölfangvorrichtung 54 bildet, sodass diese insgesamt eine Kanalform (in etwa U-förmigen Querschnitt aufweist). Die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 erstreckt sich über einen segmentartigen Abschnitt, genauer einen kreissegmentartigen Abschnitt der Trennwand 38. Dort wo die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 nicht ausgebildet ist, kann das sich darin sammelnde Öl in einen im Verdichter befindlichen Ölsumpf ablaufen. Das heißt, dass die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 an einer im Betrieb des Verdichters 10 unten befindlichen Seite in einem (Kreis-)Sektor von 20° bis 90°, vorzugsweise von 60° bis einschließlich 80° nicht ausgebildet ist bzw. ausgespart ist. Dies heißt in anderen Worten gesagt, dass die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 einen Sektorwinkel von 270° bis 340°, vorzugsweise 280° bis 300° aufweist. In der konkret beschriebenen Ausführungsform beträgt der Sektorwinkel 290°.The oil draining device or oil collecting device 54, which is in the form of a channel, has a delimitation 56, in particular a wall, which is approximately L-shaped in cross section and which is arranged on the separating device 36, in the embodiment described here on the partition 38 and with the housing side wall 42 or the housing inner wall 52 is in contact, which forms a lateral delimitation of the oil discharge device or oil catching device 54, so that it overall has a channel shape (approximately U-shaped cross section). The oil draining device or oil collecting device 54 extends over a segment-like section, more precisely a segment-like section of the partition 38. Where the oil draining device or oil collecting device 54 is not formed, the oil collecting therein can drain into an oil sump located in the compressor. This means that the oil discharge device or oil catching device 54 is not formed or is cut out on a side located at the bottom during operation of the compressor 10 in a (circular) sector of 20 ° to 90 °, preferably from 60 ° to 80 ° inclusive. In other words, this means that the oil discharge device or oil catching device 54 has a sector angle of 270 ° to 340 °, preferably 280 ° to 300 °. In the specifically described embodiment, the sector angle is 290 °.

Die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 ist in der beschriebenen Ausführungsform vollständig in dem ersten Volumen 32 angeordnet. Die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 weist einen Ölauslass bzw. Ölaustritt bzw. eine Ölauslassöffnung 55 auf, der bzw. die in dem ersten Volumen 32 angeordnet ist, insbesondere somit dort mündet. So wird das durch die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 eingefangene bzw. abgeführte Öl in das erste Volumen 32 hinein abgeleitet bzw. abgeführt.In the embodiment described, the oil discharge device or oil catching device 54 is arranged completely in the first volume 32. The oil discharge device or oil catching device 54 has an oil outlet or oil outlet or an oil outlet opening 55 which is arranged in the first volume 32, in particular therefore opens there. In this way, the oil caught or discharged by the oil discharge device or oil catching device 54 is discharged or discharged into the first volume 32.

Es sei an dieser Stelle angemerkt, dass die Ölabführvorrichtung bzw. Ölfangvorrichtung 54 in alternativen Ausführungsformen auch an bzw. in der Trennwand 38 und/oder dem Demistor 40, beispielsweise als Vertiefung oder auch in Form einer Stelle reduzierter Materialansammlung, beispielsweise Nut ausgebildet sein kann. Die vorstehend beschriebene Ausführungsform gemäß Fig. 1 und Fig. 2 jedoch stellt eine wirkungsvolle Konstruktion sicher, bei der eine optimale Ölabfuhr sichergestellt ist.It should be noted at this point that the oil discharge device or oil catching device 54 in alternative embodiments is also reduced on or in the partition 38 and / or the demistor 40, for example as a recess or also in the form of a point Material accumulation, for example groove can be formed. The embodiment described above according to Fig. 1 and Fig. 2 however, an effective construction ensures that optimum oil drainage is ensured.

Es bleibt zu erwähnen, dass sich das Druckrohr 28 zum Zuführen des verdichteten Mediums, das sich in das erste Volumen 32 hineinerstreckt, in diesem eine 90°-Biegung aufweist und an seinem Auslass 58 zu der der Trennvorrichtung 36 abgewandten Seite hin abgeschrägt ist, so dass ein möglichst großer Innenwandbereich des ersten Volumens 32 angeströmt wird. Dies erleichtert die Öl-Vorabscheidung.It remains to be mentioned that the pressure pipe 28 for supplying the compressed medium, which extends into the first volume 32, has a 90 ° bend therein and is beveled at its outlet 58 to the side facing away from the separating device 36, so that the largest possible inner wall area of the first volume 32 is flown against. This facilitates the oil pre-separation.

Zusammenfassend lässt sich festhalten, dass, um ein Wiedermischen von bereits abgeschiedenem Öl mit dem Gas am Demistor 40 zu vermeiden, erfindungsgemäß eine Ölabführvorrichtung bzw. Ölfangvorrichtung 54 (Ölfangkragen) vorgesehen ist. Der Ölfangkragen bildet zusammen mit der Innenseite der Gehäusewand des ersten Volumens 32 einen Ölablaufkanal, wodurch das entlang der Wand strömende Öl vor dem Demistor 40 abgefangen und nach unten zum Ölsumpf geleitet wird.In summary, it can be stated that, in order to avoid remixing oil that has already separated out with the gas at the demistor 40, an oil discharge device or oil catcher 54 (oil catcher collar) is provided according to the invention. The oil collecting collar, together with the inside of the housing wall of the first volume 32, forms an oil drainage channel, as a result of which the oil flowing along the wall is intercepted in front of the demistor 40 and directed down to the oil sump.

Obwohl die Erfindung anhand von Ausführungsformen mit festen Merkmalskombinationen beschrieben wird, umfasst sie jedoch auch die denkbaren weiteren vorteilhaften Kombinationen, wie sie insbesondere, aber nicht erschöpfend, durch die Unteransprüche angegeben sind. Sämtliche in den Anmeldungsunterlagen offenbarten Merkmale werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.Although the invention is described on the basis of embodiments with fixed combinations of features, it also encompasses the further conceivable advantageous combinations, as are specified in particular, but not exhaustively, by the subclaims. All of the features disclosed in the application documents are claimed as essential to the invention insofar as they are new to the state of the art individually or in combination.

BezugszeichenlisteList of reference symbols

1010
Verdichtercompressor
1212
Gehäusecasing
1414th
ElektromotorElectric motor
1616
Antriebswelledrive shaft
1818th
VerdichtungsvorrichtungCompaction device
2020th
erster Schraubenläuferfirst screw runner
2222nd
zweiter Schraubenläufersecond screw runner
2424
VerdichtungsraumCompression space
2626th
HochdruckvolumenHigh pressure volume
2828
DruckrohrPressure pipe
3030th
ÖlabscheidevorrichtungOil separator
3232
erstes Volumenfirst volume
3434
zweites Volumensecond volume
3636
TrennvorrichtungSeparator
3838
Trennwandpartition wall
38-138-1
erster Trennwandabschnittfirst partition wall section
38-238-2
zweiter Trennwandabschnittsecond partition wall section
4040
DemistorDemistor
4242
GehäuseseitenwandHousing side wall
4444
erstes Ende der Gehäuseseitenwand 42first end of the housing side wall 42
4646
StirnwandFront wall
4848
zweites Ende der Gehäuseseitenwand 42second end of housing side wall 42
5050
VerdichterausgangCompressor outlet
5252
GehäuseinnenwandHousing inner wall
5454
Ölabführvorrichtung bzw. ÖlfangvorrichtungOil drainage device or oil catcher
5555
Ölauslass bzw. Ölaustritt bzw. ÖlauslassöffnungOil outlet or oil outlet or oil outlet opening
5656
Begrenzung bzw. WandungLimitation or wall
5858
Auslass des Druckrohrs 28Outlet of pressure pipe 28

Claims (15)

  1. A screw compressor (10) having a compression apparatus (18), in particular at least one screw rotor (20, 22) which feeds a compressed medium to an oil separation apparatus (30), the compressor (10) having a first volume (32), a second volume (34) and a separation apparatus (36) which separates the first and the second volume (32, 34) from one another, the first volume (32) being delimited by way of a housing inner wall (52) and the separation apparatus (36) which separates the first volume (32) from the second volume (34), the separation apparatus (36) having a demistor (40),
    characterized in that
    an oil discharge apparatus (54) is arranged on the separation apparatus (36).
  2. The compressor (10) as claimed in claim 1,
    characterized in that
    the oil discharge apparatus (54) is configured in the form of a channel.
  3. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the first volume (32) has an approximately cylindrical housing side wall (42) which is delimited by way of an end wall (46) at a first end (44) and by way of the separation apparatus (36) at a second end (48) which lies opposite the end wall (46), and in that the oil discharge apparatus (54) is arranged so as to extend inward from a radially outer end of the separation apparatus (36).
  4. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the oil discharge apparatus (54) has a border (56) which is configured with an approximately L-shaped cross section.
  5. The compressor (10) as claimed in claim 4,
    characterized in that
    the border (56) is a wall.
  6. The compressor (10) as claimed in claim 4 or 5,
    characterized in that
    the border (56) is arranged on the separation apparatus (36) and is in contact with the housing side wall (42).
  7. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the oil discharge apparatus (54) extends over a segment-like section of the separation apparatus (36).
  8. The compressor (10) as claimed in claim 7,
    characterized in that
    the oil discharge apparatus (54) extends over a circular segment-like or circular sector-like section of the separation apparatus (36).
  9. The compressor (10) as claimed in claim 6,
    characterized in that
    the oil discharge apparatus (54) extends over a segment or an angular range of the separation apparatus (36) of from 270° to 340°.
  10. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the oil discharge apparatus (54) extends over a segment or an angular range of the separation apparatus (36) of of from 280° to 300°, preferably of 290°.
  11. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    a pressure pipe (28) for feeding in the compressed medium extends into the first volume (32), and has a 90° bend in said first volume (32).
  12. The compressor (10) as claimed in claim 11,
    characterized in that
    the pressure pipe (28) is beveled toward a side which faces away from the separation apparatus (36).
  13. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the demistor (40) has a metal knitted mesh.
  14. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the oil discharge apparatus (54) has an oil outlet (55) which is arranged in the first volume (32).
  15. The compressor (10) as claimed in one of the preceding claims,
    characterized in that
    the oil discharge apparatus (54) is arranged completely in the first volume (32).
EP14823898.3A 2013-12-12 2014-12-12 Compressor Active EP3080458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013020533.6A DE102013020533A1 (en) 2013-12-12 2013-12-12 compressor
PCT/EP2014/003344 WO2015086160A1 (en) 2013-12-12 2014-12-12 Compressor

Publications (2)

Publication Number Publication Date
EP3080458A1 EP3080458A1 (en) 2016-10-19
EP3080458B1 true EP3080458B1 (en) 2020-10-07

Family

ID=52282666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14823898.3A Active EP3080458B1 (en) 2013-12-12 2014-12-12 Compressor

Country Status (5)

Country Link
US (1) US10451066B2 (en)
EP (1) EP3080458B1 (en)
CN (1) CN105793573B (en)
DE (1) DE102013020533A1 (en)
WO (1) WO2015086160A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016011506A1 (en) * 2016-09-21 2018-03-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Screw compressor for a commercial vehicle
CN107630819A (en) * 2017-10-10 2018-01-26 珠海格力电器股份有限公司 Oil separation device, helical-lobe compressor and air-conditioning system
WO2020123273A1 (en) 2018-12-10 2020-06-18 Carrier Corporation Modular compressor discharge system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016794Y2 (en) * 1978-08-19 1985-05-24 株式会社ボッシュオートモーティブ システム vane compressor
CA1162171A (en) * 1979-04-04 1984-02-14 Kaichi Yamada Vane type rotary compressor
US4478054A (en) * 1983-07-12 1984-10-23 Dunham-Bush, Inc. Helical screw rotary compressor for air conditioning system having improved oil management
JPH0315693A (en) * 1989-06-09 1991-01-24 Ebara Corp Screw compressor
JP3565706B2 (en) * 1998-04-09 2004-09-15 株式会社日立製作所 Screw compressor
DE19845993A1 (en) * 1998-10-06 2000-04-20 Bitzer Kuehlmaschinenbau Gmbh Screw compressor
EP1379786B1 (en) 2001-04-17 2005-03-16 TM.C. S.P.A. Termomeccanica Compressori Screw compressor unit with incorporated oil cooling
JP2003042081A (en) * 2001-07-30 2003-02-13 Hitachi Ltd Screw compressor
DE102005010690B4 (en) * 2005-03-09 2007-04-12 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Oil-injected compressor with temperature switch
DE102005033084B4 (en) * 2005-07-15 2007-10-11 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Oil-injected compressor with means for oil temperature control
DE102008036317A1 (en) * 2008-07-29 2010-02-25 Bitzer Kühlmaschinenbau Gmbh screw compressors
US8475151B2 (en) * 2009-03-26 2013-07-02 Johnson Controls Technology Company Compressor
DE102010002649A1 (en) 2010-03-08 2011-09-08 Bitzer Kühlmaschinenbau Gmbh screw compressors
CN202560560U (en) * 2012-04-16 2012-11-28 无锡市制冷设备厂有限责任公司 Screw compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN105793573A (en) 2016-07-20
EP3080458A1 (en) 2016-10-19
US10451066B2 (en) 2019-10-22
US20160312778A1 (en) 2016-10-27
CN105793573B (en) 2020-01-03
WO2015086160A1 (en) 2015-06-18
DE102013020533A1 (en) 2015-07-02

Similar Documents

Publication Publication Date Title
DE102005040971B4 (en) Scroll compressor with function to prevent loss of lubricating oil
EP3298241B1 (en) Oil-lubricated slide vane rotary vacuum pump with oil separating and reconditioning device
DE102017105175B3 (en) Positive displacement machine according to the spiral principle, method for operating a positive displacement machine, positive displacement spiral, vehicle air conditioning system and vehicle
EP3482078B1 (en) Oil-lubricated rotary vane vacuum pump
EP3011181B1 (en) Refrigerant condenser
EP3080458B1 (en) Compressor
EP2321533A2 (en) Screw-type compressor
EP2874752B1 (en) Separator arrangement
EP3067102A1 (en) Water separator and water separation system with integrated water discharge device
EP3080455B1 (en) Compressor
WO2017055129A1 (en) Multi-stage rotary vane pump
EP3394449B1 (en) Refrigerant compressor system
DE102016210015A1 (en) A refrigerant receiver for collecting refrigerant and heat exchanger means with such a refrigerant receiver
EP3080456B1 (en) Compressor
DE102015013659A1 (en) Dry gas sealing system and turbomachine with a dry gas sealing system
DE102011056903B4 (en) Reciprocating compressor and method for separating liquids, in particular oil
DE69721191T2 (en) Horizontal centrifuge for oil extraction from oil-containing mixtures
DE102013020536A1 (en) compressor
DE102023112736A1 (en) Devices for compressing a gaseous fluid and method for operating a device for compressing a gaseous fluid
DE102021202705A1 (en) Separator and compressor
EP3371420B1 (en) Arrangement for separation of lubricant flows and exhaust gas turbocharger comprising such arrangement
EP3051136A1 (en) Vacuum pump
DE102012104405A1 (en) Rotary pump for use in hydrodynamic systems for supplying water, has suction chamber and pressure chamber, which lies behind suction chamber in flow direction and is separated from suction chamber in axial direction by separating element

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: 20160611

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

DAX Request for extension of the european patent (deleted)
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: 20200415

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: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1321428

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201015

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014014862

Country of ref document: DE

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: FP

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

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: 20210107

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: 20210208

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: 20201007

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: 20201007

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: 20210108

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: 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: 20201007

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: 20201007

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: 20201007

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: 20210207

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: 20201007

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: 20210107

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

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: 20201007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014014862

Country of ref document: DE

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

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: 20201007

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: 20201007

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: 20201007

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: 20201007

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: 20201007

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: 20201007

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

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

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: 20201007

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: 20201007

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201231

26N No opposition filed

Effective date: 20210708

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

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: 20201007

Ref country code: LU

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

Effective date: 20201212

Ref country code: IE

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

Effective date: 20201212

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

Ref country code: LI

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

Effective date: 20201231

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: 20201007

Ref country code: CH

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

Effective date: 20201231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1321428

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201212

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

Ref country code: AT

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

Effective date: 20201212

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: 20210207

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: 20201007

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: 20201007

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: 20201007

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: 20201007

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: 20201231

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

Ref country code: NL

Payment date: 20221228

Year of fee payment: 9

Ref country code: GB

Payment date: 20221219

Year of fee payment: 9

Ref country code: FR

Payment date: 20221227

Year of fee payment: 9

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

Ref country code: IT

Payment date: 20221220

Year of fee payment: 9

Ref country code: DE

Payment date: 20230228

Year of fee payment: 9