EP2568180B1 - Vane pump - Google Patents

Vane pump Download PDF

Info

Publication number
EP2568180B1
EP2568180B1 EP11180904.2A EP11180904A EP2568180B1 EP 2568180 B1 EP2568180 B1 EP 2568180B1 EP 11180904 A EP11180904 A EP 11180904A EP 2568180 B1 EP2568180 B1 EP 2568180B1
Authority
EP
European Patent Office
Prior art keywords
vane pump
fluid channel
fluid
pump according
cover element
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
EP11180904.2A
Other languages
German (de)
French (fr)
Other versions
EP2568180A1 (en
Inventor
Sebastian Cramer
Nabil Salim AL-HASAN
Daniel Müller
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.)
Pierburg Pump Technology GmbH
Original Assignee
Pierburg Pump Technology 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 Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Priority to EP11180904.2A priority Critical patent/EP2568180B1/en
Publication of EP2568180A1 publication Critical patent/EP2568180A1/en
Application granted granted Critical
Publication of EP2568180B1 publication Critical patent/EP2568180B1/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • 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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning

Definitions

  • the invention relates to a vane pump for a compressible fluid, comprising a housing, which has a pump chamber, which rotatably has a rotor with at least one sliding element, wherein the housing has a bottom plate, a lifting ring, a thrust washer with at least one fluid inlet opening and at least one fluid outlet opening, a cover element and means for soundproofing, wherein at least one suction port, at least one fluid channel and at least one pressure port are provided such that fluid is to be guided via the suction port, the pump chamber, the at least one fluid channel to the pressure port, wherein the lid member the at least one Suction port having at least one fluid channel, the at least one pressure port and the means for soundproofing.
  • Such a vane pump is out of the DE 10 2006 058 980 A1 known.
  • This document discloses a compact vane pump that can be used, for example, in braking systems of motor vehicles. Other applications include transmissions, steering systems and active suspension systems of motor vehicles.
  • a cap-shaped silencer is provided which terminates the vane pump end.
  • this known vane pump has a compact design, it is necessary because of the increasingly complex engine concepts, additional units, such as a vane pump to run even smaller and more efficient.
  • the object of the invention is therefore to provide a vane pump, which has a high performance and a high connection variability with the smallest design.
  • the cover element has the at least one suction connection, the at least one fluid channel, the at least one pressure connection and the means for soundproofing.
  • the cover element is disc-shaped, whereby a small vane pump length is ensured.
  • the check valve is designed as a spring-plate valve and arranged in the cover element.
  • the lid member is easy to mount as a unit.
  • a valve seat is formed in the area of the fluid outlet opening by the thrust washer.
  • the check valve is designed as an umbrella valve, which is fixed in the thrust washer.
  • the lid may include a valve limit for the umbrella valve.
  • the check valve is designed as a membrane member that is arranged on the cover element.
  • the membrane member may in this case be designed as a rubber membrane or spring steel, wherein the valve seat is in turn formed by the thrust washer.
  • the means for soundproofing advantageously have a porous molded part which is space-favorable upstream of the pressure connection as a silencer.
  • the means for sound insulation consist of a labyrinth-shaped configuration of the fluid channel, wherein the at least one fluid channel is formed such that the sound is refracted when flowing through the fluid channel by the fluid at the fluid channel.
  • the fluid channel can be designed siphon-like, in order to retain impurities or liquid components. In this case, discharge openings may be provided in the fluid channel to prevent the fluid channel from running to fullness.
  • the lid member made of plastic or aluminum.
  • FIG. 1 shows an exploded view of a vane pump 2 according to the invention in the present embodiment, the vane pump according to the invention is fixedly connected to an electric motor 4 forming the drive unit.
  • the vane pump 2 for a compressible fluid, such as air has a housing 6 defining a pump chamber 8.
  • a rotor 10 is arranged in the present case, five slide elements 12 rotatably.
  • the rotor 10 is arranged in known manner on a drive shaft 14 of the electric motor 10.
  • the pump chamber 8 is closed by a bottom plate 16.
  • the slide elements 12 are guided in a known manner along a cam ring 18 and generate in this way the desired negative pressure.
  • a thrust washer 20 At the electric motor 4 opposite end of the pump chamber 8 is closed by a thrust washer 20.
  • This thrust washer 20 has an inlet opening 22 through which the fluid enters the pump chamber 8 and, in the present embodiment, has two outlet openings 24, 26, through which the fluid leaves the pump chamber 8.
  • a cover member 28 having a suction port 30 and a pressure port 32.
  • the lid member 28 is made of aluminum.
  • two centering pins 34 are provided in the present embodiment, through which the individual parts of the housing 6 can be mounted in the correct fit. Screws 36 ensure secure attachment of the individual parts 16, 18, 20, 28 on the electric motor 4.
  • FIG. 2 now shows a perspective view of a first embodiment of the cover member 28, wherein the thrust washer facing side of the cover member 28 is shown.
  • the suction connection 30, which is a channel 38, can be seen connects, such that fluid passes through the inlet opening 22 in a known manner in the pump chamber 8.
  • a negative pressure is built up by rotating the rotor 10 and the compressed fluid is discharged via the outlet opening 24 and 26.
  • the thrust washer 20 forms in the present embodiment, the valve seat for the spring-plate valves 40, 42 each consisting of a plate member 44 and a spring 46.
  • the plate members 44 are held by means of lugs 48 captive in the cover member 28 and pressed by the springs 46 under bias against the thrust washer 20.
  • the fluid passage 52 is formed in the present embodiment labyrinth, so that the sound waves of the outflowing fluid are broken and thereby the Noise emission is significantly reduced. Furthermore, a recess 54 provides a siphon-like structure of the fluid channel 52, whereby impurities and / or liquid component are retained in each installation position.
  • FIG. 3 shows an alternative embodiment of the cover member 28. Again, the suction port 30 with subsequent channel 38 can be seen. Also, the check valves 40 and 42 correspond in structure and function to the above, with respect to FIG. 2
  • Each outlet opening 24, 26 of the thrust washer 20 is now assigned here a separate fluid channel 56, 58, each of which opens into a pressure port not shown.
  • the respective pressure connection is preceded in each case by a porous mold element 60, 62, which acts as a muffler.
  • the respective fluid channel 56, 58 could also be configured in a labyrinth shape.
  • FIG. 4 now shows the lid element FIG. 3 with an alternative check valve 64.
  • the check valve 64 is formed here as a diaphragm member made of spring steel, which is opened by the pressure applied to one or more outlet openings of the thrust washer 20 in a known manner.
  • a valve limiting element 70 is provided, which limits the degree of opening of the membrane member 64.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Description

Die Erfindung betrifft eine Flügelzellenpumpe für ein kompressibles Fluid, mit einem Gehäuse, dass eine Pumpenkammer aufweist, der ein Rotor mit mindestens einem Schiebeelement drehbar angeordnet ist, wobei das Gehäuse eine Bodenplatte, einen Hubring, eine Anlaufscheibe mit mindestens einer Fluideinlassöffnung und mindestens einer Fluidauslassöffnung, ein Deckelelement und Mittel zur Schalldämmung aufweist, wobei mindestens ein Sauganschluss, mindestens ein Fluidkanal und mindestens ein Druckanschluss vorgesehen sind, derart, dass Fluid über den Sauganschluss, die Pumpenkammer, den mindestens einen Fluidkanal zum Druckanschluss zu führen ist, wobei das Deckelelement den mindestens einen Sauganschluss, den mindestens einen Fluidkanal, den mindestens einen Druckanschluss und die Mittel zur Schalldämpfung aufweist.The invention relates to a vane pump for a compressible fluid, comprising a housing, which has a pump chamber, which rotatably has a rotor with at least one sliding element, wherein the housing has a bottom plate, a lifting ring, a thrust washer with at least one fluid inlet opening and at least one fluid outlet opening, a cover element and means for soundproofing, wherein at least one suction port, at least one fluid channel and at least one pressure port are provided such that fluid is to be guided via the suction port, the pump chamber, the at least one fluid channel to the pressure port, wherein the lid member the at least one Suction port having at least one fluid channel, the at least one pressure port and the means for soundproofing.

Eine derartige Flügelzellenpumpe ist aus der DE 10 2006 058 980 A1 bekannt. Diese Druckschrift offenbart eine kompakte Flügelzellenpumpe, die zum Beispiel in Bremssystemen von Kraftfahrzeugen zum Einsatz gelangen kann. Weitere Anwendungsgebiete sind Getriebe, Lenkungssysteme sowie aktive Fahrwerksysteme von Kraftfahrzeugen. Um niedrige Geräuschemissionen zu gewährleisten, ist ein kappenartig ausgebildeter Schalldämpfer vorgesehen, der die Flügelzellenpumpe endseitig abschließt. Obschon diese bekannte Flügelzellenpumpe eine kompakte Bauform aufweist, ist es aufgrund der immer aufwendigeren Motorenkonzepte notwendig, Zusatzaggregate, wie eine Flügelzellenpumpe, noch kleiner und leistungsfähiger auszuführen.Such a vane pump is out of the DE 10 2006 058 980 A1 known. This document discloses a compact vane pump that can be used, for example, in braking systems of motor vehicles. Other applications include transmissions, steering systems and active suspension systems of motor vehicles. In order to ensure low noise emissions, a cap-shaped silencer is provided which terminates the vane pump end. Although this known vane pump has a compact design, it is necessary because of the increasingly complex engine concepts, additional units, such as a vane pump to run even smaller and more efficient.

Aus der DE 10 2007 006 716 A1 ist eine gattungsgemäße Flügelzellenpumpe bekannt, die zwar geringe Baumaße, dafür jedoch eine aufwendige und fertigungstechnisch schwer herzustellende Überdruckausgleichsbohrungen aufweist.From the DE 10 2007 006 716 A1 is a generic vane pump known, although small in size, but instead has a complex and difficult to produce production overpressure compensation holes.

Aufgabe der Erfindung ist es daher, eine Flügelzellenpumpe bereit zu stellen, die bei kleinster Bauform ein hohes Leistungsvermögen und eine hohe Anschlussvariabilität aufweist.The object of the invention is therefore to provide a vane pump, which has a high performance and a high connection variability with the smallest design.

Diese Aufgabe wird durch eine Pumpe gemäß dem Anspruch 1 gelöst. Außerdem weist das Deckelelement den mindestens einen Sauganschluss, den mindestens einen Fluidkanal, den mindestens einen Druckanschluss und die Mittel zur Schalldämpfung rauf. Auf diese Weise wird eine sehr einfach und kompakt aufgebaute Flügelzellenpumpe geschaffen, die lediglich durch Austausch des Deckelelementes unterschiedlichen Bauraumanforderungen angepasst werden kann. In vorteilhafter Weise ist das Deckelement hierbei scheibenförmig ausgebildet, wodurch eine geringe Flügelzellenpumpenlänge gewährleistet ist.This object is achieved by a pump according to claim 1. In addition, the cover element has the at least one suction connection, the at least one fluid channel, the at least one pressure connection and the means for soundproofing. In this way, a very simple and compact constructed vane pump is created, which can be adjusted only by replacing the cover element different space requirements. Advantageously, the cover element is disc-shaped, whereby a small vane pump length is ensured.

In einer vorteilhaften Ausführungsform ist das Rückschlagventil als Feder-Platte-Ventil ausgeführt und im Deckelelement angeordnet. Auf diese Weise ist das Deckelelement einfach als Einheit zu montieren. Ein Ventilsitz wird im Bereich der Fluidauslassöffnung durch die Anlaufscheibe gebildet. Auf diese Weise wird der Totraum zwischen Auslassöffnung und Pumpeneinheit auf ein Minimum reduziert, was sich positiv auf die Leistungsaufnahme der Pumpe auswirkt. Eine alternative Ausführungsform wird dadurch erreicht, dass das Rückschlagventil als Umbrella-Ventil ausgeführt ist, das in der Anlaufscheibe befestigt ist. In diesem Falle kann der Deckel eine Ventilbegrenzung für das Umbrella-Ventil beinhalten. Eine weitere alternative Ausführungsform ist dadurch gegeben, dass das Rückschlagventil als Membranorgan ausgeführt ist, dass am Deckelelement angeordnet ist. Das Membranorgan kann hierbei als Gummimembran oder als Federstahl ausgeführt sein, wobei der Ventilsitz wiederrum durch die Anlaufscheibe gebildet wird.In an advantageous embodiment, the check valve is designed as a spring-plate valve and arranged in the cover element. In this way, the lid member is easy to mount as a unit. A valve seat is formed in the area of the fluid outlet opening by the thrust washer. In this way, the dead space between the outlet opening and pump unit is reduced to a minimum, which has a positive effect on the power consumption of the pump. An alternative embodiment is achieved in that the check valve is designed as an umbrella valve, which is fixed in the thrust washer. In this case, the lid may include a valve limit for the umbrella valve. Another alternative embodiment is thereby given that the check valve is designed as a membrane member that is arranged on the cover element. The membrane member may in this case be designed as a rubber membrane or spring steel, wherein the valve seat is in turn formed by the thrust washer.

Die Mittel zur Schalldämmung weisen vorteilhafterweise ein poröses Formteil auf, das bauraumgünstig dem Druckanschluss als Schalldämpfer vorgelagert ist. Alternativ oder zusätzlich können die Mittel zur Schalldämmung aus einer labyrinthförmigen Ausgestaltung des Fluidkanals bestehen, wobei der mindestens eine Fluidkanal derart ausgebildet ist, dass der Schall beim Durchströmen des Fluidkanals durch das Fluid am Fluidkanal gebrochen wird. In einer weiteren vorteilhaften Ausführungsform kann der Fluidkanal siphonartig ausgeführt sein, um Verunreinigungen oder Flüssigkeitsbestandteile zurückzuhalten. Hierbei können Ablassöffnungen im Fluidkanal vorgesehen sein um ein Volllaufen des Fluidkanals zu verhindern.The means for soundproofing advantageously have a porous molded part which is space-favorable upstream of the pressure connection as a silencer. Alternatively or additionally, the means for sound insulation consist of a labyrinth-shaped configuration of the fluid channel, wherein the at least one fluid channel is formed such that the sound is refracted when flowing through the fluid channel by the fluid at the fluid channel. In a further advantageous embodiment, the fluid channel can be designed siphon-like, in order to retain impurities or liquid components. In this case, discharge openings may be provided in the fluid channel to prevent the fluid channel from running to fullness.

Vorteilhafter Weise ist das Deckelelement aus Kunststoff oder Aluminium hergestellt.Advantageously, the lid member made of plastic or aluminum.

Die erfindungsgemäße Flügelzellenpumpe wird nachfolgend anhand der Zeichnung näher erläutert. Hierbei zeigt:

  • Figur 1 eine Explosionsansicht einer erfindungsgemäßen Flügelzellenpumpe,
  • Figur 2 eine perspektivische Ansicht einer ersten Ausführungsform eines Deckelelementes,
  • Figur 3 eine perspektivische Ansicht einer zweiten Ausführungsform eines Deckelelementes, und
  • Figur 4 eine perspektivische Ansicht einer dritten Ausführungsform eines Deckelelementes.
The vane pump according to the invention will be explained in more detail with reference to the drawing. Hereby shows:
  • FIG. 1 an exploded view of a vane pump according to the invention,
  • FIG. 2 a perspective view of a first embodiment of a cover element,
  • FIG. 3 a perspective view of a second embodiment of a cover element, and
  • FIG. 4 a perspective view of a third embodiment of a cover element.

Figur 1 zeigt eine Explosionsansicht einer erfindungsgemäßen Flügelzellenpumpe 2 im vorliegenden Ausführungsbeispiel ist die erfindungsgemäße Flügelzellenpumpe fest mit einem die Antriebseinheit bildenden Elektromotor 4 verbunden. Die Flügelzellenpumpe 2 für ein krompressibles Fluid wie beispielsweise Luft, weist ein Gehäuse 6 auf, das eine Pumpenkammer 8 definiert. In der Pumpenkammer 8 ist ein Rotor 10 mit im vorliegenden Fall, fünf Schieberelementen 12 drehbar angeordnet. Der Rotor 10 ist auf bekannte Weise auf einer Antriebswelle 14 des Elektromotors 10 angeordnet. Zum Elektromotor 10 hin gerichtet ist die Pumpenkammer 8 durch eine Bodenplatte 16 abgeschlossen. Die Schieberelemente 12 werden auf bekannte Weise entlang einem Hubring 18 geführt und erzeugen auf diese Weise den gewünschten Unterdruck. An dem Elektromotor 4 entgegengesetzten Ende ist die Pumpenkammer 8 durch eine Anlaufscheibe 20 abgeschlossen. Diese Anlaufscheibe 20 weist eine Einlassöffnung 22 auf, durch die das Fluid in die Pumpenkammer 8 eintritt und weist im vorliegenden Ausführungsbeispiel 2 Auslassöffnungen 24, 26 auf, durch die das Fluid die Pumpenkammer 8 verlässt. Abgeschlossen ist das Gehäuse durch ein Deckelelement 28, das einen Sauganschluss 30 und einen Druckanschluss 32 besitzt. Im vorliegenden Ausführungsbeispiel ist das Deckelelement 28 aus Aluminium hergestellt. Desweiteren sind im vorliegenden Ausführungsbeispiel zwei Zentrierstifte 34 vorgesehen, durch die die Einzelteile des Gehäuses 6 in der richtigen Passform montierbar sind. Schrauben 36 gewährleisten eine sichere Befestigung der Einzelteile 16, 18, 20, 28 am Elektromotor 4. FIG. 1 shows an exploded view of a vane pump 2 according to the invention in the present embodiment, the vane pump according to the invention is fixedly connected to an electric motor 4 forming the drive unit. The vane pump 2 for a compressible fluid, such as air, has a housing 6 defining a pump chamber 8. In the pump chamber 8, a rotor 10 is arranged in the present case, five slide elements 12 rotatably. The rotor 10 is arranged in known manner on a drive shaft 14 of the electric motor 10. Towards the electric motor 10, the pump chamber 8 is closed by a bottom plate 16. The slide elements 12 are guided in a known manner along a cam ring 18 and generate in this way the desired negative pressure. At the electric motor 4 opposite end of the pump chamber 8 is closed by a thrust washer 20. This thrust washer 20 has an inlet opening 22 through which the fluid enters the pump chamber 8 and, in the present embodiment, has two outlet openings 24, 26, through which the fluid leaves the pump chamber 8. Completed is the housing by a cover member 28 having a suction port 30 and a pressure port 32. In the present embodiment, the lid member 28 is made of aluminum. Furthermore, two centering pins 34 are provided in the present embodiment, through which the individual parts of the housing 6 can be mounted in the correct fit. Screws 36 ensure secure attachment of the individual parts 16, 18, 20, 28 on the electric motor 4.

Figur 2 zeigt nun eine perspektivische Ansicht einer ersten Ausführungsform des Deckelelementes 28, wobei die zur Anlaufscheibe gerichtete Seite des Deckelelementes 28 dargestellt ist. Zu erkennen ist zunächst der Sauganschluss 30 dem sich ein Kanal 38 anschließt, derart, dass Fluid über die Einlassöffnung 22 auf bekannte Weise in die Pumpenkammer 8 gelangt. Dort wird durch Drehen des Rotors 10 ein Unterdruck aufgebaut und das verdichtete Fluid über die Auslassöffnung 24 und 26 ausgestoßen. Die Anlaufscheibe 20 bildet im vorliegenden Ausführungsbeispiel den Ventilsitz für die Feder-Platten-Ventile 40, 42 die jeweils aus einem Plattenteil 44 und einer Feder 46 bestehen. Die Plattenteile 44 werden mittels Ansatzstücken 48 verliersicher im Deckelelement 28 gehalten und durch die Federn 46 unter Vorspannung gegen die Anlaufscheibe 20 gedrückt. Über Unterbrechungen 50 die zwischen den Ansatzstücken 48 vorgesehen sind, gelangt das unter Druck stehende Fluid, in den Fluidkanal 52 und von dort zum Druckanschluss 32. Der Fluidkanal 52 ist im vorliegenden Ausführungsbeispiel labyrinthförmig ausgebildet, sodass die Schallwellen des ausströmenden Fluids gebrochen werden und dadurch die Geräuschemission wesentlich verringert wird. Desweiteren sorgt eine Vertiefung 54 für einen siphonartigen Aufbau des Fluidkanals 52, wodurch Verunreinigungen und/oder Flüssigkeitsbestandteil in jeder Einbaulage zurückgehalten werden. FIG. 2 now shows a perspective view of a first embodiment of the cover member 28, wherein the thrust washer facing side of the cover member 28 is shown. First of all, the suction connection 30, which is a channel 38, can be seen connects, such that fluid passes through the inlet opening 22 in a known manner in the pump chamber 8. There, a negative pressure is built up by rotating the rotor 10 and the compressed fluid is discharged via the outlet opening 24 and 26. The thrust washer 20 forms in the present embodiment, the valve seat for the spring-plate valves 40, 42 each consisting of a plate member 44 and a spring 46. The plate members 44 are held by means of lugs 48 captive in the cover member 28 and pressed by the springs 46 under bias against the thrust washer 20. About interruptions 50 which are provided between the lugs 48, the fluid under pressure, in the fluid passage 52 and from there to the pressure port 32. The fluid passage 52 is formed in the present embodiment labyrinth, so that the sound waves of the outflowing fluid are broken and thereby the Noise emission is significantly reduced. Furthermore, a recess 54 provides a siphon-like structure of the fluid channel 52, whereby impurities and / or liquid component are retained in each installation position.

Figur 3 zeigt eine alternative Ausführungsform des Deckelelementes 28. Auch hier ist wieder der Sauganschluss 30 mit anschließendem Kanal 38 zu erkennen. Auch die Rückschlagventile 40 und 42 entsprechen in Aufbau und Funktion den oben, in Bezug auf Figur 2, beschriebenen Rückschlagventilen 40 und 42. Jede Auslassöffnung 24, 26 der Anlaufscheibe 20 ist hier nun ein eigener Fluidkanal 56, 58 zugeordnet, der jeweils in einen nicht weiter dargestellten Druckanschluss mündet. Dem jeweiligen Druckanschluss ist im vorliegenden Ausführungsbeispiel jeweils ein poröses Formelement 60,62 vorgelagert, das als Schalldämpfer wirkt. Natürlich könnte auch hier der jeweilige Fluidkanal 56, 58 auch noch labyrinthförmig ausgestaltet sein. FIG. 3 shows an alternative embodiment of the cover member 28. Again, the suction port 30 with subsequent channel 38 can be seen. Also, the check valves 40 and 42 correspond in structure and function to the above, with respect to FIG. 2 Each outlet opening 24, 26 of the thrust washer 20 is now assigned here a separate fluid channel 56, 58, each of which opens into a pressure port not shown. In the present exemplary embodiment, the respective pressure connection is preceded in each case by a porous mold element 60, 62, which acts as a muffler. Of course, here too, the respective fluid channel 56, 58 could also be configured in a labyrinth shape.

Figur 4 zeigt nun das Deckelelement aus Figur 3 mit einem alternativen Rückschlagventil 64. Hier sind auch die porösen Formelemente 60,62 weggelassen, sodass Druckanschlüsse 66, 68 zu erkennen sind. Das Rückschlagventil 64 ist hier als Membranorgan aus Federstahl ausgebildet, das durch den Druck der an einer oder mehreren Auslassöffnungen der Anlaufscheibe 20 anliegt auf bekannte Weise geöffnet wird. Im Deckelelement 28 ist ein Ventilbegrenzungselement 70 vorgesehen, das den Öffnungsgrad des Membranorgans 64 beschränkt. FIG. 4 now shows the lid element FIG. 3 with an alternative check valve 64. Here, the porous mold elements 60,62 are omitted, so that pressure ports 66, 68 can be seen. The check valve 64 is formed here as a diaphragm member made of spring steel, which is opened by the pressure applied to one or more outlet openings of the thrust washer 20 in a known manner. In the cover element 28, a valve limiting element 70 is provided, which limits the degree of opening of the membrane member 64.

Claims (10)

  1. Vane pump for a compressible fluid, comprising a housing (6) with a pump chamber (8) in which a rotor (10) with at least one slide element (12) is arranged rotatably, the housing (6) having a bottom plate (16), a stroke ring (18), a thrust washer (20) with at least one fluid inlet opening (22) and at least one fluid outlet opening (24, 26), a cover element (28) and means for sound insulation (52, 60, 62), wherein at least one suction port (30), at least one fluid channel (52, 56, 58) and at least one pressure port (32, 66, 68) are provided such that fluid can be guided through the suction port (30), the pump chamber (8), the at least one fluid channel (52, 56, 58) to the pressure port (32, 66, 68), wherein the cover element (28) comprises the at least one suction port (30), the at least one fluid channel (52, 56, 58), the at least one pressure port (32, 66, 68) and the means for sound insulation (52, 60, 62), characterized in that at least one check valve (40, 42, 64) extends into the fluid channel (52, 56, 58), which operatively connected with the at least one fluid outlet opening (24, 26) in the thrust washer (20) and the means for sound insulation (52, 60, 62) in the fluid channel (52, 56, 58), wherein the thrust washer (20) forms a valve seat for the check valve (40, 42, 44).
  2. Vane pump according to claim 1, characterized in that the cover element (28) is disc-shaped.
  3. Vane pump according to claim 1 or 2, characterized in that the check valve (40, 42) is configured as a spring-plate valve and is arranged in the cover element (28).
  4. Vane pump according to claim 1 or 2, characterized in that the check valve is configured as an umbrella valve which is fixed in the thrust washer (20),
  5. Vane pump according to claim 1 or 2, characterized in that the check valve is configured as a membrane member (64) which is arranged on the cover element (28).
  6. Vane pump according to one of the preceding claims, characterized in that the means for sound insulation (60, 62) comprise a porous molded part which is arranged upstream of the pressure port (66, 68).
  7. Vane pump according to one of the preceding claims, characterized in that the means for sound insulation are formed by a labyrinth-shaped configuration of the fluid channel (52).
  8. Vane pump according to one of the preceding claims, characterized in that the fluid channel (52, 56, 58) is configured to be siphon-like in order to hold back impurities and/or liquid components.
  9. Vane pump according to claim 8, characterized in that discharge openings are provided in the fluid channel (52).
  10. Vane pump according to one of the preceding claims, characterized in that the cover element (28) is made from plastics or aluminum.
EP11180904.2A 2011-09-12 2011-09-12 Vane pump Active EP2568180B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11180904.2A EP2568180B1 (en) 2011-09-12 2011-09-12 Vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11180904.2A EP2568180B1 (en) 2011-09-12 2011-09-12 Vane pump

Publications (2)

Publication Number Publication Date
EP2568180A1 EP2568180A1 (en) 2013-03-13
EP2568180B1 true EP2568180B1 (en) 2019-11-13

Family

ID=44872170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180904.2A Active EP2568180B1 (en) 2011-09-12 2011-09-12 Vane pump

Country Status (1)

Country Link
EP (1) EP2568180B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111033051A (en) * 2017-08-17 2020-04-17 皮尔伯格泵技术有限责任公司 Vacuum pump device for motor vehicle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017076418A1 (en) 2015-11-02 2017-05-11 Pierburg Pump Technology Gmbh Motor vehicle vacuum pump
US11261869B2 (en) * 2016-06-22 2022-03-01 Pierburg Pump Technology Gmbh Motor vehicle vacuum pump arrangement
CN106438375B (en) * 2016-10-17 2018-05-18 珠海格力节能环保制冷技术研究中心有限公司 A kind of compressor and its exhaust structure
EP3577343B1 (en) 2017-02-01 2020-11-04 Pierburg Pump Technology GmbH Vane-type gas pump
JP2020506332A (en) 2017-02-01 2020-02-27 ピエルブルグ ポンプ テクノロジー ゲーエムベーハーＰｉｅｒｂｕｒｇ Ｐｕｍｐ Ｔｅｃｈｎｏｌｏｇｙ Ｇｍｂｈ Vane type gas pump
CN108263035A (en) * 2017-12-29 2018-07-10 邓瑜 A kind of luggage manufacturing device with vacuumizing function

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180569A (en) * 1962-05-21 1965-04-27 Gast Mfg Corp Cooled rotary pump
US3180449A (en) * 1963-01-28 1965-04-27 Ingersoll Rand Co Noise abatement snubber for vacuum pump system
JPS62225793A (en) * 1986-03-28 1987-10-03 Toshiba Corp Closed type scroll compressor
US5214937A (en) * 1991-10-28 1993-06-01 Carrier Corporation Integral oil separator and muffler
JP2858302B2 (en) * 1995-10-09 1999-02-17 セイコー精機株式会社 Gas compressor
US6790019B1 (en) * 2003-02-28 2004-09-14 Thomas Industries Inc. Rotary vane pump with multiple sound dampened inlet ports
DE102006058980B4 (en) 2006-12-14 2016-08-04 Hella Kgaa Hueck & Co. Vane pump
DE102006061706A1 (en) * 2006-12-28 2008-07-03 Robert Bosch Gmbh Sliding/rotary vane pump for e.g. filling blister contained in seat, has suction hole opening and closing unit to open and close suction opening, when return valve opens pump area in peripheral direction
DE102007006716A1 (en) * 2007-02-10 2008-08-14 Zf Lenksysteme Gmbh Positive-displacement pump i.e. single-stroke sliding vane pump, for servo-steering device of motor vehicle, has front surface with wall surface deformed so that gap is formed or enlarged, through which fluid is flown from work cell
DE102007060883A1 (en) * 2007-12-18 2009-06-25 Robert Bosch Gmbh Fluidic work machine e.g. single-stroke vane pump, has pressure discharge device subjecting working chambers with system pressure in pre-compression region, where pressure discharge device is mounted in control discs or housing

Non-Patent Citations (1)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111033051A (en) * 2017-08-17 2020-04-17 皮尔伯格泵技术有限责任公司 Vacuum pump device for motor vehicle
CN111033051B (en) * 2017-08-17 2021-12-28 皮尔伯格泵技术有限责任公司 Vacuum pump device for motor vehicle

Also Published As

Publication number Publication date
EP2568180A1 (en) 2013-03-13

Similar Documents

Publication Publication Date Title
EP2568180B1 (en) Vane pump
EP2577004B1 (en) Hydraulically actuated camshaft adjusting device
EP2167820B1 (en) Diaphragm pump
DE112011105490B4 (en) Fuel pump
DE102004011123A1 (en) Pump for conveying an exhaust aftertreatment medium, in particular a urea-water solution, for diesel engines
DE102010044898A1 (en) Vacuum pump with ventilation device
WO2005024232A1 (en) Pump for conveying an exhaust gas aftertreatment medium, particularly a urea-water solution, for diesel engines
DE10117418A1 (en) Oscillating positive displacement pump
DE102015101361A1 (en) Paint Sprayer
DE102008050252B4 (en) Valve device for internal combustion engines, in particular secondary air valve
DE102013221730A1 (en) Electric vacuum pump
DE102014218547A1 (en) Camshaft adjuster of the vane type with bypass cartridge valve
WO2016156062A1 (en) Reciprocating positive-displacement pump and overpressure valve with an elastic valve diaphragm that can be used therefor
DE102007010729B3 (en) Vacuum pump for use in engine of motor vehicle, has sealing body flexibly designed and fixed at air discharge opening at front and rear ends of opening in rotation direction of rotor, where body lies permanently at opening
EP1319831B1 (en) High pressure fuel pump having integrated vane feed pump
DE102011007781A1 (en) Submerged pump for conveying fuel into engine, has inlet valve and discharge valve for connecting pumping chamber with inlet and outlet, respectively, where inlet valve is designed as digitally controllable valve or magnetic valve
DE102006061706A1 (en) Sliding/rotary vane pump for e.g. filling blister contained in seat, has suction hole opening and closing unit to open and close suction opening, when return valve opens pump area in peripheral direction
WO1992008051A1 (en) Piston pump, especially a radial piston pump
EP2602429A1 (en) Fly pump for a compressible fluid
DE102011053148B4 (en) Radial piston pump
DE102013226441A1 (en) braking system
WO2009068411A1 (en) Tensioner for traction mechanism
DE102012013202A1 (en) Swash plate construction hydrostatic axial piston machine for hydraulic hybrid drive of motor car, has cylinder drum connected with drive shaft in rotation and axial directions, where shaft is supported on side of drum in housing portion
DE102017128106B3 (en) Motor vehicle chassis
DE102009046405A1 (en) Piston pump for slip-controlled hydraulic brake system of motor vehicle, has end stop arranged between inner and outer cams, where pump capacity is varied based on direction of rotation of end stop

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

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

17P Request for examination filed

Effective date: 20130912

RBV Designated contracting states (corrected)

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

17Q First examination report despatched

Effective date: 20140603

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: 20190603

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: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1201934

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011016250

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: DE

Ref legal event code: R082

Ref document number: 502011016250

Country of ref document: DE

Representative=s name: TERPATENT PARTGMBB, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502011016250

Country of ref document: DE

Representative=s name: TERPATENT PATENTANWAELTE TER SMITTEN EBERLEIN-, DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20191113

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: 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: 20191113

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: 20191113

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: 20191113

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: 20191113

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: 20200213

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: 20200214

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: 20200313

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: 20191113

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: 20191113

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: 20200213

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: 20191113

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

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: 20191113

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: 20200313

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: 20191113

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: 20191113

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

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: 20191113

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: 20191113

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: 20191113

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: 20191113

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011016250

Country of ref document: DE

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

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: 20191113

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: 20191113

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: 20200814

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: 20191113

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: 20191113

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200912

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200930

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: 20200912

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: 20200930

Ref country code: CH

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

Effective date: 20200930

Ref country code: LI

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

Effective date: 20200930

Ref country code: IE

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

Effective date: 20200912

Ref country code: GB

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

Effective date: 20200912

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1201934

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200912

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: 20200912

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: 20191113

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: 20191113

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: 20191113

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: 20191113

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

Ref country code: FR

Payment date: 20230918

Year of fee payment: 13

Ref country code: DE

Payment date: 20230919

Year of fee payment: 13

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

Ref country code: IT

Payment date: 20230929

Year of fee payment: 13