EP2126362B1 - Centrifugal pump comprising a spiral housing - Google Patents

Centrifugal pump comprising a spiral housing Download PDF

Info

Publication number
EP2126362B1
EP2126362B1 EP08716783A EP08716783A EP2126362B1 EP 2126362 B1 EP2126362 B1 EP 2126362B1 EP 08716783 A EP08716783 A EP 08716783A EP 08716783 A EP08716783 A EP 08716783A EP 2126362 B1 EP2126362 B1 EP 2126362B1
Authority
EP
European Patent Office
Prior art keywords
centrifugal pump
housing part
seal
rotor
housing
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
EP08716783A
Other languages
German (de)
French (fr)
Other versions
EP2126362A1 (en
Inventor
Rajko Colic
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2126362A1 publication Critical patent/EP2126362A1/en
Application granted granted Critical
Publication of EP2126362B1 publication Critical patent/EP2126362B1/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to a centrifugal pump with a spiral housing.
  • the invention is further focused on the use of the centrifugal pump.
  • Centrifugal pumps with spiral housings are known.
  • a two-part volute casing for a centrifugal pump which is designed aerodynamically optimized.
  • Such centrifugal pumps are usually driven by an electric motor, wherein the stator of the electric motor are arranged in a drying room and the rotor in a wet room. The rotor thus rotates in the wet space, which is surrounded by the flowing medium to be pumped.
  • the drying space and the wet space are separated by a separately arranged split tube, which is disadvantageously necessary to arrange sealing elements between the one part of the spiral housing and the can, in order to avoid entry of liquid or vapor from the wet space into the drying room.
  • a separately arranged split tube which is disadvantageously necessary to arrange sealing elements between the one part of the spiral housing and the can, in order to avoid entry of liquid or vapor from the wet space into the drying room.
  • the DE 42 17 457 A1 describes a centrifugal pump with the features of the preamble of claim 1.
  • a similar centrifugal pump is from the US 3,053,189 A known.
  • the EP 1 437 819 A1 shows a centrifugal pump, in which the flooded rotor space is closed at the end with a stopper.
  • the invention is therefore an object of the invention to provide a centrifugal pump with a spiral housing, in which a Ingress of liquid from the wet space surrounding the rotor into the drying space, and thus a flooding of the drying space, is completely avoided.
  • the object underlying the invention is achieved by a centrifugal pump with the features of claim 1.
  • the second housing part is tubular at its side facing away from the inlet E of the flowing medium and thus assumes the function of a split tube, on the additional separate arrangement is completely dispensed with.
  • the first seal communicates with the environment at at least one side facing away from the wet space N. This means that at least part of the gasket is in direct contact with the ambient air or, in the event of an emergency, a liquid that flows past the gasket can escape directly into the environment. It has surprisingly been found that in this way an entry of liquid from the wet space N in the drying space T, and thus a flooding of the drying space T, can be completely avoided.
  • connection of the first seal with the environment through channels or openings in or on the lid.
  • the first seal can be relatively easily and easily associated with the environment, which allows the advantageous use of various sealing elements as the first seal.
  • a second seal is arranged between the motor housing and the second housing part in the region of its tubular boundary.
  • an O-ring seal is arranged as a first seal and as a second seal. It may be advantageous to arrange the first seal and the second seal in the form of an O-ring seal directly opposite to the second housing part, but this is not absolutely necessary.
  • the first seal in the form of an O-ring is then placed on the inner wall of the tubular boundary of the second housing part.
  • the second seal is then arranged in the form of an O-ring on the outer wall of the tubular boundary of the second housing part. This measure facilitates the production of the centrifugal pump.
  • a further preferred embodiment of the invention provides that the second housing part has a first bearing and the cover has a second bearing for the rotatable mounting of the rotor.
  • the lid can form the second camp itself, or serves only to accommodate such a camp. It is advantageous that on the additional Arrangement of a special bearing ring inside the centrifugal pump can be dispensed with.
  • the second housing part in the outer region of a longitudinal arc-shaped boundary perpendicular to the flow direction of the flowing from the inlet E medium.
  • the exact course of the arcuate boundary is designed according to aerodynamic considerations optimized in terms of engineering. In this way, the installation space of the centrifugal pump can be particularly advantageously minimized.
  • the invention is finally the use of the centrifugal pump as a cooling water centrifugal pump in a motor vehicle.
  • Coolant centrifugal pumps in motor vehicles must function flawlessly for long periods of operation, whereby flooding of the drying room T must be prevented at all costs.
  • the use of the centrifugal pump as a cooling water centrifugal pump in a motor vehicle is therefore particularly advantageous.
  • a centrifugal pump is shown in longitudinal section in three-dimensional form.
  • the centrifugal pump points a spiral housing, which consists of a first housing part 1 and a second housing part 2, wherein the second housing part 2 at its, the inlet E of the inflowing medium remote from the inner receiving portion of the rotor 3 in the wet space N is tubular and limited.
  • the flowing medium is illustrated by the thick arrow.
  • a stator 4 is arranged outside in the area of the rotor 3 in the drying space T.
  • a cover 5 is arranged, wherein between the cover 5 and the second housing part 2, a first seal 6 is arranged, which communicates with the environment on at least one side facing away from the wet room N side.
  • the connection of the first seal 6 with the environment takes place through channels 5 'on the cover 5.
  • the stator 4 is surrounded on the outside by a motor housing 7.
  • a second seal 8 is arranged in the region of its tubular boundary.
  • the first seal 6 and the second seal 8 are each arranged in the form of an O-ring seal.
  • the second housing part 2 has a first bearing 2 * and the cover 5 a second bearing 5 * for the rotatable mounting of the rotor 3.
  • the second housing part 2 has in the outer region an arcuate boundary 2 ** perpendicular to the flow direction of the medium flowing from the inlet E. If the first seal 6 becomes porous after, for example, longer operating times, the liquid passes via the first seal 6 into the channels 5 ', which constitute the connection to the environment. The liquid is thus delivered directly to the environment, which is illustrated by the thin arrow. In this way it is not possible that liquid from the wet space N, in which the rotor 3 is arranged, enters the drying space T, so that flooding of the drying space T is completely avoided. by the arrangement of the second seal 8 is also avoided that minor parts of exiting steam in the drying room T get which is particularly advantageous if the liquid contains corrosive fractions. In this way, therefore, the drying room T can be kept completely dry.
  • Fig. 2 the centrifugal pump is shown three-dimensionally in longitudinal section in the form of an exploded view.
  • the second housing part 2 is tubular and bounded in a region for receiving the rotor 3 internally.
  • the first seal 6 and the second seal 8 are formed as O-ring seals.
  • a centrifugal pump is shown in longitudinal section three-dimensionally according to the prior art.
  • the centrifugal pump according to the prior art has a spiral housing which consists of a first housing part 1b and a second housing part 2b.
  • the inlet Eb liquid to be conveyed medium represented by the thick arrow, enters the wet space Nb, in which the rotor 3b is rotatably mounted.
  • a stator 4b is arranged externally in the drying space Tb.
  • the drying space Tb is closed by a motor housing 7b from the environment.
  • the separation of the wet space Nb from the drying space Tb takes place according to the prior art by the disadvantageous arrangement of a can 9b, wherein optionally an entry of liquid from the wet room Nb in the drying space Tb can be done by an adverse arrangement of a sealing ring 10b, which between the can 9b and the second housing part 2b is to be arranged.
  • This then results in a disadvantageous flooding of the drying space Tb, which can already be realized, for example, if the centrifugal pump is exposed to strong shocks during operation.
  • the possible entry of liquid into the drying space Tb is illustrated by the thin arrow.
  • the possible flooding of the drying space Tb has direct damage to the stator 4b and other electronic components (not shown) result, which are avoided by the centrifugal pump according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a centrifugal pump comprising a spiral housing consisting of a first housing part (1) and a second housing part (2), the latter (2) being tubular and delimited in a region facing away from the inlet E of the inflowing medium in order to receive the rotor (3) in its interior in a wet chamber N. A stator (4) surrounds the second housing part (2) and is situated in the dry chamber T in the vicinity of the exterior of the rotor (3). The tubular delimitation of the second housing part (2) is provided with a cover (5), a first seal (6) being located between the cover (5) and the second housing part (2). Said seal comes into contact with the environment on at least one side facing away from the wet chamber N. The invention also relates to the use of the centrifugal pump as a coolant centrifugal pump in a motor vehicle.

Description

Die Erfindung bezieht sich auf eine Kreiselpumpe mit einem Spiralgehäuse. Die Erfindung ist ferner auf die Verwendung der Kreiselpumpe abgestellt. Kreiselpumpen mit Spiralgehäusen sind bekannt. In der DE 103 47 302 A1 wird ein zweiteiliges Spiralgehäuse für eine Kreiselpumpe beschrieben, das strömungstechnisch optimiert ausgelegt ist. Solche Kreiselpumpen werden in der Regel elektromotorisch angetrieben, wobei der Stator des Elektromotors in einem Trockenraum und der Rotor in einem Nassraum angeordnet sind. Der Rotor dreht sich somit im Nassraum, der von dem zu fördernden strömenden Medium umspült wird. Der Trockenraum und der Nassraum sind dabei durch ein separat angeordnetes Spaltrohr getrennt, wobei in nachteiliger Weise erforderlich ist, zwischen dem einen Teil des Spiralgehäuses und dem Spaltrohr Dichtungselemente anzuordnen, um ein Eintreten von Flüssigkeit oder Dampf aus dem Nassraum in den Trockenraum zu vermeiden. Bei längeren Betriebszeiten, wenn also die Dichtung langsam porös wird, oder bei vorhandenen Erschütterungen, die auf die Kreiselpumpe, einwirken, lässt es sich oftmals nicht verhindern, dass größere Mengen an Flüssigkeit in den Trockenraum gelangen und diesen fluten. Dies führt dann zu größeren Schäden am Stator sowie an elektronischen Bauteilen, die sich neben dem Stator ebenfalls im Trockenraum befinden.The invention relates to a centrifugal pump with a spiral housing. The invention is further focused on the use of the centrifugal pump. Centrifugal pumps with spiral housings are known. In the DE 103 47 302 A1 is described a two-part volute casing for a centrifugal pump, which is designed aerodynamically optimized. Such centrifugal pumps are usually driven by an electric motor, wherein the stator of the electric motor are arranged in a drying room and the rotor in a wet room. The rotor thus rotates in the wet space, which is surrounded by the flowing medium to be pumped. The drying space and the wet space are separated by a separately arranged split tube, which is disadvantageously necessary to arrange sealing elements between the one part of the spiral housing and the can, in order to avoid entry of liquid or vapor from the wet space into the drying room. In the case of longer operating times, ie when the gasket slowly becomes porous, or in the case of existing vibrations which act on the centrifugal pump, it is often impossible to prevent larger quantities of liquid from entering and flooding the drying space. This then leads to major damage to the stator and electronic components, which are also located in the dry room next to the stator.

Die DE 42 17 457 A1 beschreibt eine Kreiselpumpe mit den Merkmalen des Oberbegriffes des Anspruches 1. Eine ähnliche Kreiselpumpe ist aus der US 3,053,189 A bekannt. Die EP 1 437 819 A1 zeigt eine Kreiselpumpe, bei welcher der geflutete Rotorraum stirnseitig mit einem Stopfen verschlossen ist.The DE 42 17 457 A1 describes a centrifugal pump with the features of the preamble of claim 1. A similar centrifugal pump is from the US 3,053,189 A known. The EP 1 437 819 A1 shows a centrifugal pump, in which the flooded rotor space is closed at the end with a stopper.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Kreiselpumpe mit einem Spiralgehäuse zu schaffen, bei der ein Eintreten von Flüssigkeit aus dem den Rotor umgebenden Nassraum in den Trockenraum, und somit ein Fluten des Trockenraumes, vollständig vermieden wird.The invention is therefore an object of the invention to provide a centrifugal pump with a spiral housing, in which a Ingress of liquid from the wet space surrounding the rotor into the drying space, and thus a flooding of the drying space, is completely avoided.

Die der Erfindung zugrunde liegende Aufgabe wird durch eine Kreiselpumpe mit den Merkmalen des Anspruches 1 gelöst.The object underlying the invention is achieved by a centrifugal pump with the features of claim 1.

Das zweite Gehäuseteil ist an seinem dem Eintritt E des herströmenden Mediums abgewandten Bereich rohrförmig ausgebildet und übernimmt somit die Funktion eines Spaltrohres, auf dessen zusätzliche separate Anordnung jedoch vollständig verzichtet wird. Die erste Dichtung steht an mindestens einer dem Nassraum N abgewandten Seite mit der Umgebung in Verbindung. Dies bedeutet, dass mindestens ein Teil der Dichtung direkt Kontakt zur Umgebungsluft hat, oder dass im Notfall eine über die Dichtung hinaus strömende Flüssigkeit direkt in die Umgebung gelangen kann. Es hat sich in überraschender Weise gezeigt, dass sich auf diese Weise ein Eintreten von Flüssigkeit aus dem Nassraum N in den Trockenraum T, und damit ein Fluten des Trockenraumes T, vollständig vermieden werden kann. Durch die Verbindung der ersten Dichtung mit der Umgebung ist in vorteilhafter Weise sichergestellt, dass im Fall einer Zersetzung der ersten Dichtung nach längeren Betriebszeiten Teile von Flüssigkeit direkt an die Umgebung freigegeben werden und somit nicht in den Trockenraum T gelangen können. Auf diese Weise lassen sich Beschädigungen des Stators sowie Beschädigungen an weiteren elektrischen Bauteilen im Trockenraum T in vorteilhafter Weise vermeiden.The second housing part is tubular at its side facing away from the inlet E of the flowing medium and thus assumes the function of a split tube, on the additional separate arrangement is completely dispensed with. The first seal communicates with the environment at at least one side facing away from the wet space N. This means that at least part of the gasket is in direct contact with the ambient air or, in the event of an emergency, a liquid that flows past the gasket can escape directly into the environment. It has surprisingly been found that in this way an entry of liquid from the wet space N in the drying space T, and thus a flooding of the drying space T, can be completely avoided. By connecting the first seal with the environment is advantageously ensured that in case of decomposition of the first seal after prolonged periods of operation parts of liquid are released directly to the environment and thus can not get into the drying room T. Damage to the stator as well as damage to other electrical components in the drying space T can advantageously be avoided in this way.

Nach einer bevorzugten Ausgestaltung der Erfindung erfolgt die Verbindung der ersten Dichtung mit der Umgebung durch Kanäle oder Durchtrittsöffnungen im oder am Deckel. Auf diese Weise lässt sich die erste Dichtung mit der Umgebung relativ einfach und problemlos in Verbindung bringen, was den vorteilhaften Einsatz verschiedener Dichtungselemente als erste Dichtung ermöglicht.According to a preferred embodiment of the invention, the connection of the first seal with the environment through channels or openings in or on the lid. In this way, the first seal can be relatively easily and easily associated with the environment, which allows the advantageous use of various sealing elements as the first seal.

Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist vorgesehen, dass zwischen dem Motorgehäuse und dem zweiten Gehäuseteil im Bereich seiner rohrförmigen Begrenzung eine zweite Dichtung angeordnet ist. Dadurch wird in vorteilhafter Weise erreicht, dass auch ein Eintreten geringfügiger Dampfmengen in den Trockenraum T vermieden werden kann. Durch diese Maßnahme wird somit der Trockenraum T in vorteilhafter Weise absolut trocken gehalten. Dies ist besonders dann von Vorteil, wenn das strömende Medium ätzende Komponenten enthält.According to a further preferred embodiment of the invention it is provided that between the motor housing and the second housing part in the region of its tubular boundary, a second seal is arranged. As a result, it is advantageously achieved that an entry of small amounts of steam into the drying space T can be avoided. By this measure, the drying space T is thus kept completely dry in an advantageous manner. This is particularly advantageous if the flowing medium contains corrosive components.

Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist als erste Dichtung und als zweite Dichtung jeweils eine O-Ring-Dichtung angeordnet. Dabei kann es vorteilhaft sein, die erste Dichtung und die zweite Dichtung in Form einer O-Ring-Dichtung direkt gegenüberliegend am zweiten Gehäuseteil anzuordnen, was jedoch nicht zwingend erforderlich ist. Die erste Dichtung in Form eines O-Ringes wird dann an der Innenwand der rohrförmigen Begrenzung des zweiten Gehäuseteils angeordnet. Die zweite Dichtung wird dann in Form eines O-Ringes an der Außenwand der rohrförmigen Begrenzung des zweiten Gehäuseteils angeordnet. Diese Maßnahme erleichtert die Herstellung der Kreiselpumpe.According to a further preferred embodiment of the invention, in each case an O-ring seal is arranged as a first seal and as a second seal. It may be advantageous to arrange the first seal and the second seal in the form of an O-ring seal directly opposite to the second housing part, but this is not absolutely necessary. The first seal in the form of an O-ring is then placed on the inner wall of the tubular boundary of the second housing part. The second seal is then arranged in the form of an O-ring on the outer wall of the tubular boundary of the second housing part. This measure facilitates the production of the centrifugal pump.

Eine weitere bevorzugte Ausgestaltung der Erfindung sieht vor, dass das zweite Gehäuseteil ein erstes Lager und der Deckel ein zweites Lager für die drehbare Lagerung des Rotors aufweisen. Der Deckel kann dabei das zweite Lager selber bilden, oder dient lediglich der Aufnahme eines solchen Lagers. Dabei ist vorteilhaft, dass auf die zusätzliche Anordnung eines speziellen Lageringes im Inneren der Kreiselpumpe verzichtet werden kann.A further preferred embodiment of the invention provides that the second housing part has a first bearing and the cover has a second bearing for the rotatable mounting of the rotor. The lid can form the second camp itself, or serves only to accommodate such a camp. It is advantageous that on the additional Arrangement of a special bearing ring inside the centrifugal pump can be dispensed with.

Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung weist das zweite Gehäuseteil im äußeren Bereich eine im Längsschnitt bogenförmige Begrenzung senkrecht zur Strömungsrichtung des vom Eintritt E herströmenden Mediums auf. Der genaue Verlauf der bogenförmigen Begrenzung wird dabei nach strömungstechnischen Gesichtspunkten ingenieurmäßig optimiert ausgelegt. Auf diese Weise lässt sich der Bauraum der Kreiselpumpe besonders vorteilhaft minimieren.According to a further preferred embodiment of the invention, the second housing part in the outer region of a longitudinal arc-shaped boundary perpendicular to the flow direction of the flowing from the inlet E medium. The exact course of the arcuate boundary is designed according to aerodynamic considerations optimized in terms of engineering. In this way, the installation space of the centrifugal pump can be particularly advantageously minimized.

Gegenstand der Erfindung ist schließlich die Verwendung der Kreiselpumpe als Kühlwasser-Kreiselpumpe in einem Kraftfahrzeug. Kühlwasser-Kreiselpumpen in Kraftfahrzeugen müssen über lange Betriebszeiten einwandfrei funktionieren, wobei ein Fluten des Trockenraumes T unbedingt verhindert werden muss. Der Einsatz der Kreiselpumpe als Kühlwasser-Kreiselpumpe in einem Kraftfahrzeug ist daher besonders vorteilhaft.The invention is finally the use of the centrifugal pump as a cooling water centrifugal pump in a motor vehicle. Coolant centrifugal pumps in motor vehicles must function flawlessly for long periods of operation, whereby flooding of the drying room T must be prevented at all costs. The use of the centrifugal pump as a cooling water centrifugal pump in a motor vehicle is therefore particularly advantageous.

Die Erfindung wird nachfolgend anhand der Zeichnung (Fig. 1 bis Fig. 3) näher und beispielhaft erläutert.

Fig. 1
zeigt die Kreiselpumpe im Längsschnitt in dreidimensionaler Form,
Fig. 2
zeigt die Kreiselpumpe im Längsschnitt in dreidimensionaler Form in Form einer Explosionszeichnung,
Fig. 3
zeigt eine Kreiselpumpe im Längsschnitt in dreidimensionaler Form nach dem Stand der Technik.
The invention will be described below with reference to the drawing (in which Fig. 1 to Fig. 3 ) explained in greater detail and by way of example.
Fig. 1
shows the centrifugal pump in longitudinal section in three-dimensional form,
Fig. 2
shows the centrifugal pump in longitudinal section in three-dimensional form in the form of an exploded view,
Fig. 3
shows a centrifugal pump in longitudinal section in three-dimensional form according to the prior art.

In Fig. 1 ist eine Kreiselpumpe im Längsschnitt in dreidimensionaler Form dargestellt. Die Kreiselpumpe weist ein Spiralgehäuse auf, dass aus einem ersten Gehäuseteil 1 und einem zweiten Gehäuseteil 2 besteht, wobei das zweite Gehäuseteil 2 an seinem, dem Eintritt E des herströmenden Mediums abgewandten Bereich zur inneren Aufnahme des Rotors 3 im Nassraum N rohrförmig ausgebildet und begrenzt ist. Das strömende Medium wird dabei durch den dicken Pfeil illustriert. Um das zweite Gehäuseteil 2 ist außen im Bereich des Rotors 3 im Trockenraum T ein Stator 4 angeordnet. An der rohrförmigen Begrenzung des zweiten Gehäuseteils 2 ist ein Deckel 5 angeordnet, wobei zwischen dem Deckel 5 und dem zweiten Gehäuseteil 2 eine erste Dichtung 6 angeordnet ist, die an mindestens einer dem Nassraum N abgewandten Seite mit der Umgebung in Verbindung steht. Die Verbindung der ersten Dichtung 6 mit der Umgebung erfolgt dabei durch Kanäle 5' am Deckel 5. Der Stator 4 ist außen von einem Motorgehäuse 7 umgeben. Zwischen dem Motorgehäuse 7 und dem zweiten Gehäuseteil 2 ist im Bereich seiner rohrförmigen Begrenzung eine zweite Dichtung 8 angeordnet. Die erste Dichtung 6 und die zweite Dichtung 8 sind jeweils in Form einer O-Ring-Dichtung angeordnet. Das zweite Gehäuseteil 2 weist ein erstes Lager 2* und der Deckel 5 ein zweites Lager 5* für die drehbare Lagerung des Rotors 3 auf. Dadurch kann auf einen zusätzlichen Lagerring vollständig verzichtet werden. Das zweite Gehäuseteil 2 weist im äußeren Bereich eine im Längsschnitt bogenförmige Begrenzung 2** senkrecht zur Strömungsrichtung des vom Eintritt E herströmenden Mediums auf. Wird die erste Dichtung 6 nach beispielsweise längeren Betriebszeiten porös, so gelangt die Flüssigkeit über die erste Dichtung 6 in die Kanäle 5', die die Verbindung zur Umgebung darstellen. Die Flüssigkeit wird somit direkt an die Umgebung abgegeben, was durch den dünnen Pfeil illustriert ist. Auf diese Weise ist es nicht möglich, dass Flüssigkeit aus dem Nassraum N, in dem der Rotor 3 angeordnet ist, in den Trockenraum T gelangt, so dass ein Fluten des Trockenraumes T vollständig vermieden wird. durch die Anordnung der zweiten Dichtung 8 wird darüber hinaus vermieden, dass geringfügige Teile an austretendem Dampf in den Trockenraum T gelangen, was besonders dann vorteilhaft ist, wenn die Flüssigkeit ätzende Anteile enthält. Auf diese Weise kann somit der Trockenraum T vollständig trocken gehalten werden.In Fig. 1 a centrifugal pump is shown in longitudinal section in three-dimensional form. The centrifugal pump points a spiral housing, which consists of a first housing part 1 and a second housing part 2, wherein the second housing part 2 at its, the inlet E of the inflowing medium remote from the inner receiving portion of the rotor 3 in the wet space N is tubular and limited. The flowing medium is illustrated by the thick arrow. Around the second housing part 2, a stator 4 is arranged outside in the area of the rotor 3 in the drying space T. At the tubular boundary of the second housing part 2, a cover 5 is arranged, wherein between the cover 5 and the second housing part 2, a first seal 6 is arranged, which communicates with the environment on at least one side facing away from the wet room N side. The connection of the first seal 6 with the environment takes place through channels 5 'on the cover 5. The stator 4 is surrounded on the outside by a motor housing 7. Between the motor housing 7 and the second housing part 2, a second seal 8 is arranged in the region of its tubular boundary. The first seal 6 and the second seal 8 are each arranged in the form of an O-ring seal. The second housing part 2 has a first bearing 2 * and the cover 5 a second bearing 5 * for the rotatable mounting of the rotor 3. This can be completely dispensed with an additional bearing ring. The second housing part 2 has in the outer region an arcuate boundary 2 ** perpendicular to the flow direction of the medium flowing from the inlet E. If the first seal 6 becomes porous after, for example, longer operating times, the liquid passes via the first seal 6 into the channels 5 ', which constitute the connection to the environment. The liquid is thus delivered directly to the environment, which is illustrated by the thin arrow. In this way it is not possible that liquid from the wet space N, in which the rotor 3 is arranged, enters the drying space T, so that flooding of the drying space T is completely avoided. by the arrangement of the second seal 8 is also avoided that minor parts of exiting steam in the drying room T get which is particularly advantageous if the liquid contains corrosive fractions. In this way, therefore, the drying room T can be kept completely dry.

In Fig. 2 ist die Kreiselpumpe dreidimensional im Längsschnitt in Form einer Explosionszeichnung dargestellt. Das zweite Gehäuseteil 2 ist in einem Bereich zur inneren Aufnahme des Rotors 3 rohrförmig ausgebildet und begrenzt. Die erste Dichtung 6 und die zweite Dichtung 8 sind als O-Ring-Dichtungen ausgebildet.In Fig. 2 the centrifugal pump is shown three-dimensionally in longitudinal section in the form of an exploded view. The second housing part 2 is tubular and bounded in a region for receiving the rotor 3 internally. The first seal 6 and the second seal 8 are formed as O-ring seals.

In Fig. 3 ist eine Kreiselpumpe im Längsschnitt dreidimensional nach dem Stand der Technik dargestellt. Die Kreiselpumpe nach dem Stand der Technik weist ein Spiralgehäuse auf, das aus einem ersten Gehäuseteil 1b und einem zweiten Gehäuseteil 2b besteht. Durch den Eintritt Eb gelangt flüssiges zu förderndes Medium, dargestellt durch den dicken Pfeil, in den Nassraum Nb, in dem der Rotor 3b drehbar gelagert ist. Im Bereich des Rotors 3b ist außen ein Stator 4b im Trockenraum Tb angeordnet. Der Trockenraum Tb ist dabei durch ein Motorgehäuse 7b von der Umgebung abgeschlossen. Die Trennung des Nassraumes Nb vom Trockenraum Tb erfolgt nach dem Stand der Technik durch die nachteilige Anordnung eines Spaltrohres 9b, wobei gegebenenfalls ein Eintreten von Flüssigkeit aus dem Nassraum Nb in den Trockenraum Tb durch eine nachteilige Anordnung eines Dichtungsringes 10b erfolgen kann, die zwischen dem Spaltrohr 9b und dem zweiten Gehäuseteil 2b anzuordnen ist. Dies hat dann ein nachteiliges Fluten des Trockenraumes Tb zur Folge, was beispielsweise schon dann realisiert werden kann, wenn die Kreiselpumpe in Betrieb stärkeren Erschütterungen ausgesetzt ist. Das mögliche Eintreten von Flüssigkeit in den Trockenraum Tb ist durch den dünnen Pfeil illustriert. Das mögliche Fluten des Trockenraumes Tb hat unmittelbar Schädigungen an Stator 4b und weiteren elektronischen Bauteilen (nicht dargestellt) zur Folge, die durch die erfindungsgemäße Kreiselpumpe vermieden werden.In Fig. 3 a centrifugal pump is shown in longitudinal section three-dimensionally according to the prior art. The centrifugal pump according to the prior art has a spiral housing which consists of a first housing part 1b and a second housing part 2b. Through the inlet Eb liquid to be conveyed medium, represented by the thick arrow, enters the wet space Nb, in which the rotor 3b is rotatably mounted. In the area of the rotor 3b, a stator 4b is arranged externally in the drying space Tb. The drying space Tb is closed by a motor housing 7b from the environment. The separation of the wet space Nb from the drying space Tb takes place according to the prior art by the disadvantageous arrangement of a can 9b, wherein optionally an entry of liquid from the wet room Nb in the drying space Tb can be done by an adverse arrangement of a sealing ring 10b, which between the can 9b and the second housing part 2b is to be arranged. This then results in a disadvantageous flooding of the drying space Tb, which can already be realized, for example, if the centrifugal pump is exposed to strong shocks during operation. The possible entry of liquid into the drying space Tb is illustrated by the thin arrow. The possible flooding of the drying space Tb has direct damage to the stator 4b and other electronic components (not shown) result, which are avoided by the centrifugal pump according to the invention.

Claims (7)

  1. Centrifugal pump having a spiral housing, which comprises a first housing part (1) and a second housing part (2), the area of the second housing part (2) remote from the inlet E of the inflowing medium being of tubular design and its outline delimited for internal accommodation of the rotor (3) in the wet chamber N, a stator (4) being arranged in the dry chamber T externally surrounding the second housing part (2) in the area of the rotor (3), the stator (4) being externally surrounded by a motor housing (7) and a cover (5) being arranged on the tubular outline of the second housing part (2), characterized in that a first seal (6), which is connected to the surroundings on at least one side remote from the wet chamber N, is arranged between the cover (5) and the tubular outline of the second housing part (2).
  2. Centrifugal pump according to Claim 1, wherein the first seal (6) is connected to the surroundings by ducts (5') or passages in or on the cover (5).
  3. Centrifugal pump according to Claim 1 or Claim 2, wherein a second seal (8) is arranged between the motor housing (7) and the second housing part (2) in the area of its tubular outline.
  4. Centrifugal pump according to Claim 1 or Claim 3, wherein an O-ring seal is in each case provided as a seal (6,8).
  5. Centrifugal pump according to one of Claims 1 to 4, wherein the second housing part (2) has a first bearing (2*) and the cover (5) has a second bearing (5*) for rotatable mounting of the rotor (3).
  6. Centrifugal pump according to one of claims 1 to 5, wherein the outer area of the second housing part (2) has an outline (2**) of curved longitudinal section perpendicular to the direction of flow of the medium flowing in from the inlet E.
  7. Use of the centrifugal pump according to one of Claims 1 to 6 as coolant centrifugal pump in a motor vehicle.
EP08716783A 2007-03-01 2008-02-08 Centrifugal pump comprising a spiral housing Active EP2126362B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007010051A DE102007010051A1 (en) 2007-03-01 2007-03-01 Centrifugal pump has spiral housing with two housing parts, where one housing part is formed in pipe shape and limited on its area opposite to access of inflowing medium for receiving rotor in its interior in wet chamber
PCT/EP2008/051572 WO2008104452A1 (en) 2007-03-01 2008-02-08 Centrifugal pump comprising a spiral housing

Publications (2)

Publication Number Publication Date
EP2126362A1 EP2126362A1 (en) 2009-12-02
EP2126362B1 true EP2126362B1 (en) 2012-07-04

Family

ID=39323949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08716783A Active EP2126362B1 (en) 2007-03-01 2008-02-08 Centrifugal pump comprising a spiral housing

Country Status (7)

Country Link
US (1) US20100119391A1 (en)
EP (1) EP2126362B1 (en)
JP (1) JP5074531B2 (en)
CN (1) CN101622456B (en)
DE (1) DE102007010051A1 (en)
ES (1) ES2390186T3 (en)
WO (1) WO2008104452A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101326503B1 (en) * 2011-10-26 2013-11-08 현대자동차주식회사 Canned motor type of electric water pump
DK3242034T3 (en) 2013-03-19 2019-08-12 Flow Control LLC LOW PROFILE PUMP WITH THE ABILITY TO BE INSTALLED IN VARIOUS CONFIGURATIONS
DE102015012277A1 (en) 2015-09-24 2017-03-30 Ebm-Papst St. Georgen Gmbh & Co. Kg fan unit
DE102020130486A1 (en) * 2019-12-16 2021-06-17 ECO Holding 1 GmbH Device for handling fluid within an at least partially electrically powered vehicle
CN114837792A (en) * 2021-03-10 2022-08-02 美普盛（上海）汽车零部件有限公司 Electric coolant pump with expansion compensation sealing element

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713311A (en) * 1949-12-06 1955-07-19 Howard T White Motor driven pump
US3067690A (en) * 1958-12-01 1962-12-11 Kramer Hermann Pump unit with canned electric motor
FR1310382A (en) * 1959-02-27 1962-11-23 Borg Warner Mechanical sealing device
US3053189A (en) * 1959-12-22 1962-09-11 Fostoria Corp Motor driven pumps
US3220350A (en) * 1964-09-03 1965-11-30 Crane Co Motor driven pump
US3220349A (en) * 1964-09-09 1965-11-30 Crane Co Motor driven pump
JPS4911855Y1 (en) * 1970-12-28 1974-03-23
DE3105389C2 (en) * 1981-02-14 1984-12-20 Grundfos A/S, Bjerringbro Canned motor pump
JPS59106843A (en) * 1982-12-07 1984-06-20 Mitsubishi Electric Corp Canned motor
JPS59106846A (en) * 1982-12-07 1984-06-20 Mitsubishi Electric Corp Canned motor
US5009578A (en) * 1987-10-27 1991-04-23 Crane Co. Motor driven pumps
US5129795A (en) * 1991-05-31 1992-07-14 Powerdyne Corporation Motor driven pump
DE19907556B4 (en) * 1998-09-02 2007-10-25 BSH Bosch und Siemens Hausgeräte GmbH Liquid pump, in particular drain pump for household appliances
DE19914579C2 (en) * 1999-03-31 2001-03-08 Grundfos As Centrifugal pump unit
DE19956380C1 (en) * 1999-11-24 2001-01-04 Bosch Gmbh Robert Fluid pump for vehicle cooling and heating systems has plastics motor housing with claw plates of claw pole stator formed as integral components thereof
JP2002227791A (en) * 2001-02-05 2002-08-14 Matsushita Electric Ind Co Ltd Pump
DE10140613A1 (en) * 2001-08-18 2003-03-06 Pierburg Gmbh Naßläuferpumpe
WO2003033914A1 (en) * 2001-10-11 2003-04-24 Ebara Corporation Pump device
EP1437819B1 (en) * 2003-01-10 2008-11-05 Askoll Holding S.r.l. Permanent magnet synchronous electric motor for circulation pumps of heating and conditioning systems
DE10352487A1 (en) * 2003-07-22 2005-02-10 BSH Bosch und Siemens Hausgeräte GmbH Pump with integrated motor
US20050042119A1 (en) * 2003-08-19 2005-02-24 Polyvane Technology Corp. Structural improvement for canned motor-pump
DE10347302A1 (en) 2003-10-08 2005-05-12 Siemens Ag Spiral housing for a centrifugal pump
DE102005009260A1 (en) * 2005-02-25 2006-08-31 Wilo Ag Centrifugal power pump`s can, has sleeve shaped bearing seat formed at bearing plate height coaxially to pump can, where seat carries bearing for motor shaft and seat and can are integrated to form one piece
JP4630123B2 (en) * 2005-05-11 2011-02-09 アスモ株式会社 Fluid pump
JP4758166B2 (en) * 2005-08-03 2011-08-24 アスモ株式会社 Motor and water pump

Also Published As

Publication number Publication date
DE102007010051A1 (en) 2008-09-04
EP2126362A1 (en) 2009-12-02
CN101622456A (en) 2010-01-06
CN101622456B (en) 2012-07-18
WO2008104452A1 (en) 2008-09-04
JP2010520397A (en) 2010-06-10
JP5074531B2 (en) 2012-11-14
US20100119391A1 (en) 2010-05-13
ES2390186T3 (en) 2012-11-07

Similar Documents

Publication Publication Date Title
DE102012111150B4 (en) Electric water pump
EP3447311B1 (en) Charging device for a combustion engine
DE102015114783B3 (en) Electric coolant pump with flow-cooled control circuit
EP2126362B1 (en) Centrifugal pump comprising a spiral housing
DE102015217020A1 (en) motor assembly
WO2016041682A1 (en) Flow-cooled coolant pump having a wet rotor
DE102019202909B4 (en) Centrifugal compressor and method of manufacturing a centrifugal compressor
DE102018125031A1 (en) Pump, in particular for a liquid circuit in a vehicle
EP3765712A1 (en) Modular system of an axially integrated pump structure
DE102012015960A1 (en) Electronically commutated external rotor motor
WO2008104451A1 (en) Centrifugal pump comprising a spiral housing
DE19506532C2 (en) Fluid pump / motor
DE102018125040A1 (en) Pump, in particular for a liquid circuit in a vehicle
DE102019115778A1 (en) Pump, in particular a pump for a fluid circuit in a vehicle
DE102020216462A1 (en) drive unit
DE102020211432A1 (en) Electric drive unit and a vehicle with a corresponding electric drive unit
DE10301613B4 (en) Motor-pump unit
DE102007058155A1 (en) Radial fan, has impeller coupled to drive motor over impeller shaft and coupling, where shaft is arranged at flange bearing that is arranged in rear wall of housing and stays in connection with inner area of housing
DE102007036238A1 (en) liquid pump
DE102019130722A1 (en) Liquid pump
DE1703049B2 (en) Kit of centrifugal pumps
DE4330648A1 (en) Radial pump
DE102019102368A1 (en) Electric motor for driving work machines with media separation
DE102020109516B4 (en) Water pump with application-optimized design
EP3339652A1 (en) Vacuum pump with inner lining to receive deposits

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: 20091001

AK Designated contracting states

Kind code of ref document: A1

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

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

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 565281

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120715

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: R096

Ref document number: 502008007648

Country of ref document: DE

Effective date: 20120830

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2390186

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20121107

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120704

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: 20120704

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Effective date: 20120718

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

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120704

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: 20121104

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: 20121004

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: 20120704

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: 20120704

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: 20120704

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

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: 20120704

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: 20121005

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: 20120704

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: 20120704

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: 20121105

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

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: 20120704

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: 20120704

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: 20120704

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: 20120704

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: 20120704

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

Ref country code: GB

Payment date: 20130218

Year of fee payment: 6

Ref country code: ES

Payment date: 20130227

Year of fee payment: 6

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: 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: 20120704

26N No opposition filed

Effective date: 20130405

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

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: 20121004

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008007648

Country of ref document: DE

Effective date: 20130405

BERE Be: lapsed

Owner name: CONTINENTAL AUTOMOTIVE G.M.B.H.

Effective date: 20130228

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 NON-PAYMENT OF DUE FEES

Effective date: 20130228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: CH

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

Effective date: 20130228

Ref country code: LI

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

Effective date: 20130228

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: 20130228

Ref country code: IE

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

Effective date: 20130208

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 565281

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130208

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: 20130208

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120704

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

Effective date: 20140208

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

Ref country code: GB

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

Effective date: 20140208

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: 20120704

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20080208

Ref country code: LU

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

Effective date: 20130208

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20151002

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

Ref country code: ES

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

Effective date: 20140209

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

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

Ref country code: FR

Payment date: 20170217

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20170221

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20181031

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

Ref country code: FR

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

Effective date: 20180228

Ref country code: IT

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

Effective date: 20180208

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502008007648

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008007648

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008007648

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

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

Ref country code: DE

Payment date: 20240229

Year of fee payment: 17