EP1422389A2 - Centrifugal oil separator - Google Patents

Centrifugal oil separator Download PDF

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Publication number
EP1422389A2
EP1422389A2 EP03103795A EP03103795A EP1422389A2 EP 1422389 A2 EP1422389 A2 EP 1422389A2 EP 03103795 A EP03103795 A EP 03103795A EP 03103795 A EP03103795 A EP 03103795A EP 1422389 A2 EP1422389 A2 EP 1422389A2
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EP
European Patent Office
Prior art keywords
housing
drive shaft
centrifugal separator
blades
separator according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03103795A
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German (de)
French (fr)
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EP1422389B1 (en
EP1422389A3 (en
Inventor
Torsten Hilpert
Pius Trautmann
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Mann and Hummel GmbH
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Mann and Hummel GmbH
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Publication date
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Publication of EP1422389A2 publication Critical patent/EP1422389A2/en
Publication of EP1422389A3 publication Critical patent/EP1422389A3/en
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Publication of EP1422389B1 publication Critical patent/EP1422389B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422—Separating oil and gas with a centrifuge device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/19—Crankcase ventilation

Definitions

  • the invention relates to a centrifugal separator for separation of oil from a gas stream, especially for ventilation of the crankcase of an internal combustion engine in the Preamble of claim 1 specified genus.
  • a centrifugal separator is known from DE 198 03 872 A1, of a housing with baffles arranged in it Has flow diversion.
  • the centrifugal separator is firmly connected to and is driven by a drive shaft driven in rotation.
  • To get the cleaned gas from that too Separating the cleaning gas is the sealing of the rotating housing opposite adjacent, fixed Components necessary. However, the necessary sealing hides the risk of leakage.
  • the invention has for its object a centrifugal separator of the generic type to create the is simple and reliable.
  • the housing of the centrifugal separator is held against rotation.
  • Impeller arranged to rotate around the longitudinal axis of the drive shaft, the paddles having a centrifugal flow produce.
  • the gas outlet formed in the housing thus does not have to be compared to components that are moved relative to it be sealed.
  • the impeller rotates without contact the housing, so that relative movements and the associated Wear are avoided. At the same time it results a simple structure of the centrifugal separator.
  • the gas inlet on the circumference of the drive shaft is advantageous arranged between the housing and the drive shaft and surrounds the drive shaft completely.
  • the gas is admitted approximately parallel to the longitudinal axis of the drive shaft.
  • the longitudinal axis of the drive shaft extends the width of the housing in a region between the gas inlet and the outer periphery the blades decrease radially outwards.
  • the partition extends radially from the drive shaft outwards to the outer circumference of the blades. An increase the pressure built up on the circumference of the housing results, if on the side of the partition facing the gas outlet blades producing a centripetal flow are arranged are.
  • the drive shaft is in particular the camshaft or balance shaft of an internal combustion engine.
  • Advantageous is the housing on the cylinder head of an internal combustion engine formed.
  • centrifugal separator results itself when the drive shaft is axially spaced in the housing ends from a housing wall.
  • the one with the impeller The end of the drive shaft is thus self-supporting.
  • the gas outlet is expedient compared to the gas outlet facing blades offset radially inwards.
  • the Oil outlet is arranged in particular on the circumference of the housing.
  • the centrifugal separator 1 shown in the figure has a housing 2, which is arranged rotatably.
  • the housing is particularly on the cylinder head of an internal combustion engine formed.
  • the housing 2 is largely rotationally symmetrical to the longitudinal axis 4 of a drive shaft 3.
  • the housing 2 has a front wall 18 which in Bulged direction on the longitudinal axis 4 of the drive shaft 3 is.
  • the longitudinal axis 4 simultaneously represents the Axis of symmetry of the housing 2.
  • In the area of the drive shaft 3 has the front wall 18 of the housing 2 arranged concentrically to the longitudinal axis 4, in particular circular opening 17. Through opening 17 the drive shaft 3 protrudes into the housing 2.
  • an intermediate space is formed, which is circular between the outer circumference of the Drive shaft 3 and the opening 17 extends and the Gas inlet 5 forms.
  • An impeller 14 is rotatably fixed within the housing 2 the drive shaft 3 connected.
  • a partition 8 perpendicular to the longitudinal axis 4 of the drive shaft 3 radially extends outside.
  • the partition 8 is thus approximately disc-shaped educated.
  • On the gas inlet 5 facing Side 9 of the partition 8 has the impeller 14 blades 11 which are in particular approximately parallel to the longitudinal axis 4 extend radially outwards and the one centrifugal flow produce.
  • the blades 11 run parallel to the front wall 18 of the housing 2.
  • the partition 8 extends to about the outer circumference 13 of the blades 11.
  • an oil outlet 7 On the outer circumference 16 of the Housing 2 is an oil outlet 7 which is slit-shaped and parallel to the longitudinal axis 4 of the drive shaft 3 extends. Between the outer periphery 16 of the housing 2 and An annular space 24 is formed on the outer circumference 13 of the blades 11.
  • blades 12 are arranged on the impeller.
  • the shovels 12 extend in a narrow range from Outer circumference 13 of the blades 11 radially inwards.
  • the gas outlet 6 is radial to the longitudinal axis 4 within the Scoops 12 arranged and closes in particular in radial direction directly on the blades 12.
  • the shaft end 19 of the Drive shaft 3 has the rear wall 15 of the housing 2, in which is also the gas outlet, an axial Distance a.
  • the drive shaft 3 with the impeller 14 is thus Movable in the housing 2 without contact.
  • the distance d between the partition 8 and the rear wall 15 of the housing is constant, while the distance c between the partition 8 and the Front wall 18 of the housing 2 in a region of the partition 8 decreases radially outwards.
  • the distance c on the However, gas inlet 5 facing side is on each Place larger than the distance d on the gas outlet 6 facing page 10.
  • the drive shaft rotates 3 in the direction of arrow 20 about the longitudinal axis 4.
  • Gas to be cleaned flows approximately in the direction of arrow 21 axially into the housing 2 and into the region of the impeller 14 and is radially turned by the rotation of the impeller 14 accelerated outside.
  • pressure builds up in the gas. This will drain oil separated from the gas and flows through the oil outlet 7 in the direction arrow 22 out of the housing 2.
  • the cleaned gas flows on the gas outlet 6 facing side 10 of the Partition 8 and from there through the gas outlet 6 in the direction arrow 23 out of the housing 2.
  • Centrifugal separator 1 used as a pre-separator become.
  • the Centrifugal separator 1 used as a pre-separator become.
  • the Centrifugal separator 1 At higher speeds or by enlarging of the diameter of the impeller 14 and the housing 2 also suitable for use as a final separator.
  • About the Dimensioning and the adjustment of the speed can Centrifugal separator 1 to the required separation capacity be adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Centrifugal Separators (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

The centrifugal oil separator has an intake (21) for oil-laden air surrounding the horizontal drive shaft (3) for the centrifugal rotor (14). Blades (11) on the rotor impart rotational motion to the air- stream, which flows outward to an annular chamber (24) formed in the housing (2). Oil droplets are flung onto the outer wall of the housing and the oil is drained from a tangential outlet (7) at the bottom. The air flows radially inward past additional blades (12) into a space between the rear wall of the rotor (8) and the rear wall of the housing (15). The cleaned air leaves through an outlet (6) in the rear wall of the housing.

Description

Die Erfindung betrifft einen Zentrifugalabscheider zur Abscheidung von Öl aus einem Gasstrom, insbesondere zur Entlüftung des Kurbelgehäuses einer Brennkraftmaschine der im Oberbegriff des Anspruchs 1 angegebenen Gattung.The invention relates to a centrifugal separator for separation of oil from a gas stream, especially for ventilation of the crankcase of an internal combustion engine in the Preamble of claim 1 specified genus.

Aus der DE 198 03 872 A1 ist ein Zentrifugalabscheider bekannt, der ein Gehäuse mit darin angeordneten Schikanen zur Strömungsumleitung aufweist. Der Zentrifugalabscheider ist fest mit einer Antriebswelle verbunden und wird von dieser rotierend angetrieben. Um das gereinigte Gas von dem zu reinigenden Gas zu trennen, ist die Abdichtung des rotierenden Gehäuses gegenüber angrenzenden, feststehenden Bauteilen notwendig. Die notwendige Abdichtung birgt jedoch die Gefahr von Leckagen.A centrifugal separator is known from DE 198 03 872 A1, of a housing with baffles arranged in it Has flow diversion. The centrifugal separator is firmly connected to and is driven by a drive shaft driven in rotation. To get the cleaned gas from that too Separating the cleaning gas is the sealing of the rotating housing opposite adjacent, fixed Components necessary. However, the necessary sealing hides the risk of leakage.

Der Erfindung liegt die Aufgabe zugrunde, einen Zentrifugalabscheider der gattungsgemäßen Art zu schaffen, der einfach und funktionssicher aufgebaut ist.The invention has for its object a centrifugal separator of the generic type to create the is simple and reliable.

Diese Aufgabe wird durch einen Zentrifugalabscheider mit den Merkmalen des Anspruchs 1 gelöst.This task is carried out by a centrifugal separator solved the features of claim 1.

Es ist vorgesehen, daß das Gehäuse des Zentrifugalabscheiders drehfest gehalten ist. In dem Gehäuse ist ein Laufrad um die Längsachse der Antriebswelle rotierend angeordnet, das Schaufeln aufweist, die eine Zentrifugalströmung erzeugen. Der im Gehäuse ausgebildete Gasauslaß muß somit nicht gegenüber relativ dazu bewegten Bauteilen abgedichtet werden. Das Laufrad rotiert berührungslos in dem Gehäuse, so daß Relativbewegungen und der damit verbundene Verschleiß vermieden sind. Gleichzeitig ergibt sich ein einfacher Aufbau des Zentrifugalabscheiders.It is envisaged that the housing of the centrifugal separator is held against rotation. There is a in the housing Impeller arranged to rotate around the longitudinal axis of the drive shaft, the paddles having a centrifugal flow produce. The gas outlet formed in the housing thus does not have to be compared to components that are moved relative to it be sealed. The impeller rotates without contact the housing, so that relative movements and the associated Wear are avoided. At the same time it results a simple structure of the centrifugal separator.

Vorteilhaft ist der Gaseinlaß am Umfang der Antriebswelle zwischen Gehäuse und Antriebswelle angeordnet und umgibt die Antriebswelle vollständig. Der Gaseinlaß erfolgt dabei etwa parallel zur Längsachse der Antriebswelle. Der am Umfang der Antriebswelle ausgebildete Gaseinlaß ist einfach herstellbar und ermöglicht eine gleichmäßige Einströmung des zu reinigenden Gases. Vorteilhaft sind Gaseinlaß und Gasauslaß auf gegenüberliegenden Seiten einer sich senkrecht zur Längsachse der Antriebswelle erstreckenden Trennwand angeordnet, wobei auf der dem Gaseinlaß zugewandten Seite der Trennwand Schaufeln angeordnet sind. Durch die Trennwand wird eine direkte Verbindung zwischen Gaseinlaß und Gasauslaß vermieden. Die auf der dem Gaseinlaß zugewandten Seite der Trennwand angeordneten Schaufeln beschleunigen die Strömung radial nach außen. Hierdurch können Öltröpfchen in Richtung auf den Außenumfang des Gehäuses beschleunigt und dort aus dem Gasstrom abgeschieden werden. Eine zusätzliche Beschleunigung des Gasstroms und ein damit verbundener Druckaufbau am Gehäuseumfang kann erreicht werden, wenn die sich in Richtung der Längsachse der Antriebswelle erstreckende Breite des Gehäuses in einem Bereich zwischen Gaseinlaß und dem Außenumfang der Schaufeln radial nach außen abnimmt. Vorteilhaft erstreckt sich die Trennwand von der Antriebswelle radial nach außen bis zum Außenumfang der Schaufeln. Eine Erhöhung des am Umfang des Gehäuses aufgebauten Drucks ergibt sich, wenn auf der dem Gasauslaß zugewandten Seite der Trennwand eine Zentripetalströmung erzeugende Schaufeln angeordnet sind. Die Antriebswelle ist insbesondere die Nockenwelle oder Ausgleichswelle einer Brennkraftmaschine. Vorteilhaft ist das Gehäuse am Zylinderkopf einer Brennkraftmaschine angeformt.The gas inlet on the circumference of the drive shaft is advantageous arranged between the housing and the drive shaft and surrounds the drive shaft completely. The gas is admitted approximately parallel to the longitudinal axis of the drive shaft. The extent the drive shaft formed gas inlet is simple producible and enables a uniform inflow of the gas to be cleaned. Gas inlet and are advantageous Gas outlet on opposite sides of one vertical to the longitudinal axis of the drive shaft extending partition arranged, with the gas inlet facing Side of the partition blades are arranged. Through the Partition becomes a direct connection between gas inlet and gas outlet avoided. The one facing the gas inlet Accelerate the blades arranged on the side of the partition the flow radially outward. hereby can droplets of oil towards the outer circumference of the Accelerated housing and separated there from the gas stream become. An additional acceleration of the gas flow and an associated pressure build-up on the housing circumference can be achieved if the towards the The longitudinal axis of the drive shaft extends the width of the housing in a region between the gas inlet and the outer periphery the blades decrease radially outwards. Advantageous the partition extends radially from the drive shaft outwards to the outer circumference of the blades. An increase the pressure built up on the circumference of the housing results, if on the side of the partition facing the gas outlet blades producing a centripetal flow are arranged are. The drive shaft is in particular the camshaft or balance shaft of an internal combustion engine. Advantageous is the housing on the cylinder head of an internal combustion engine formed.

Eine einfache Ausbildung des Zentrifugalabscheiders ergibt sich, wenn die Antriebswelle im Gehäuse in axialem Abstand von einer Gehäusewand endet. Das das Laufrad aufweisende Ende der Antriebswelle ist somit freitragend ausgebildet. Zweckmäßig ist der Gasauslaß gegenüber den dem Gasauslaß zugewandten Schaufeln radial nach innen versetzt. Der Ölauslaß ist insbesondere am Umfang des Gehäuses angeordnet.A simple design of the centrifugal separator results itself when the drive shaft is axially spaced in the housing ends from a housing wall. The one with the impeller The end of the drive shaft is thus self-supporting. The gas outlet is expedient compared to the gas outlet facing blades offset radially inwards. The Oil outlet is arranged in particular on the circumference of the housing.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand der Zeichnung erläutert. Die einzige Figur der Zeichnung zeigt eine schematische Schnittdarstellung durch einen Zentrifugalabscheider.An embodiment of the invention is described below the drawing explained. The only figure in the drawing shows a schematic sectional view through a Centrifugal separator.

Der in der Figur dargestellte Zentrifugalabscheider 1 besitzt ein Gehäuse 2, das drehfest angeordnet ist. Das Gehäuse ist insbesondere am Zylinderkopf einer Brennkraftmaschine angeformt. Das Gehäuse 2 ist weitgehend rotationssymmetrisch zur Längsachse 4 einer Antriebswelle 3 ausgebildet. Das Gehäuse 2 besitzt eine Vorderwand 18, die in Richtung auf die Längsachse 4 der Antriebswelle 3 aufgewölbt ist. Die Längsachse 4 stellt gleichzeitig die Symmetrieachse des Gehäuses 2 dar. Im Bereich der Antriebswelle 3 besitzt die Vorderwand 18 des Gehäuses 2 eine konzentrisch zur Längsachse 4 angeordnete, insbesondere kreisförmig ausgebildete Öffnung 17. Durch die Öffnung 17 ragt die Antriebswelle 3 in das Gehäuse 2. Zwischen der Antriebswelle 3 und dem Gehäuse 2 ist ein Zwischenraum gebildet, der sich kreisförmig zwischen dem Außenumfang der Antriebswelle 3 und der Öffnung 17 erstreckt und der den Gaseinlaß 5 bildet.The centrifugal separator 1 shown in the figure has a housing 2, which is arranged rotatably. The housing is particularly on the cylinder head of an internal combustion engine formed. The housing 2 is largely rotationally symmetrical to the longitudinal axis 4 of a drive shaft 3. The housing 2 has a front wall 18 which in Bulged direction on the longitudinal axis 4 of the drive shaft 3 is. The longitudinal axis 4 simultaneously represents the Axis of symmetry of the housing 2. In the area of the drive shaft 3 has the front wall 18 of the housing 2 arranged concentrically to the longitudinal axis 4, in particular circular opening 17. Through opening 17 the drive shaft 3 protrudes into the housing 2. Between the drive shaft 3 and the housing 2, an intermediate space is formed, which is circular between the outer circumference of the Drive shaft 3 and the opening 17 extends and the Gas inlet 5 forms.

Innerhalb des Gehäuses 2 ist ein Laufrad 14 drehfest mit der Antriebswelle 3 verbunden. Im Bereich des Wellenendes 19 ist am Laufrad 14 eine Trennwand 8 ausgebildet, die sich senkrecht zur Längsachse 4 der Antriebswelle 3 radial nach außen erstreckt. Die Trennwand 8 ist somit etwa scheibenförmig ausgebildet. Auf der dem Gaseinlaß 5 zugewandten Seite 9 der Trennwand 8 weist das Laufrad 14 Schaufeln 11 auf, die sich insbesondere etwa parallel zur Längsachse 4 radial nach außen erstrecken und die eine Zentrifugalströmung erzeugen. Auf der der Vorderwand 18 zugewandten Seite verlaufen die Schaufeln 11 parallel zur Vorderwand 18 des Gehäuses 2. Die Trennwand 8 erstreckt sich bis etwa an den Außenumfang 13 der Schaufeln 11. Am Außenumfang 16 des Gehäuses 2 ist ein Ölauslaß 7 angeordnet, der sich schlitzförmig und parallel zur Längsachse 4 der Antriebswelle 3 erstreckt. Zwischen dem Außenumfang 16 des Gehäuses 2 und dem Außenumfang 13 der Schaufeln 11 ist ein Ringraum 24 gebildet.An impeller 14 is rotatably fixed within the housing 2 the drive shaft 3 connected. In the area of the shaft end 19 is formed on the impeller 14, a partition 8 perpendicular to the longitudinal axis 4 of the drive shaft 3 radially extends outside. The partition 8 is thus approximately disc-shaped educated. On the gas inlet 5 facing Side 9 of the partition 8 has the impeller 14 blades 11 which are in particular approximately parallel to the longitudinal axis 4 extend radially outwards and the one centrifugal flow produce. On the front wall 18 facing On the side, the blades 11 run parallel to the front wall 18 of the housing 2. The partition 8 extends to about the outer circumference 13 of the blades 11. On the outer circumference 16 of the Housing 2 is an oil outlet 7 which is slit-shaped and parallel to the longitudinal axis 4 of the drive shaft 3 extends. Between the outer periphery 16 of the housing 2 and An annular space 24 is formed on the outer circumference 13 of the blades 11.

Auf der dem Gasauslaß 6 zugewandten Seite 10 der Trennwand 8 sind am Laufrad 14 Schaufeln 12 angeordnet. Die Schaufeln 12 erstrecken sich dabei in einem schmalen Bereich vom Außenumfang 13 der Schaufeln 11 radial nach innen. Der Gasauslaß 6 ist radial zur Längsachse 4 innerhalb der Schaufeln 12 angeordnet und schließt insbesondere in radialer Richtung direkt an die Schaufeln 12 an. Gegenüber der Längsachse 3 der Antriebswelle 4 ist der Gasauslaß 6 somit axial versetzt angeordnet. Das Wellenende 19 der Antriebswelle 3 besitzt zur Rückwand 15 des Gehäuses 2, in der auch der Gasauslaß ausgebildet ist, einen axialen Abstand a. Die Antriebswelle 3 mit dem Laufrad 14 ist somit im Gehäuse 2 berührungslos beweglich. Die Breite b des Gehäuses 2, die parallel zur Längsachse 4 der Antriebswelle 3 gemessen ist, nimmt in einem Bereich zwischen dem Gaseinlaß 5 und dem Außenumfang 13 der Schaufeln 11 radial nach außen hin ab. Der Abstand d zwischen der Trennwand 8 und der Rückwand 15 des Gehäuses ist dabei konstant, während der Abstand c zwischen der Trennwand 8 und der Vorderwand 18 des Gehäuses 2 in einem Bereich der Trennwand 8 radial nach außen abnimmt. Der Abstand c auf der dem Gaseinlaß 5 zugewandten Seite ist dabei jedoch an jeder Stelle größer als der Abstand d auf der dem Gasauslaß 6 zugewandten Seite 10.On the side 10 of the partition facing the gas outlet 6 8 14 blades 12 are arranged on the impeller. The shovels 12 extend in a narrow range from Outer circumference 13 of the blades 11 radially inwards. The gas outlet 6 is radial to the longitudinal axis 4 within the Scoops 12 arranged and closes in particular in radial direction directly on the blades 12. Across from the longitudinal axis 3 of the drive shaft 4 is the gas outlet 6 thus axially offset. The shaft end 19 of the Drive shaft 3 has the rear wall 15 of the housing 2, in which is also the gas outlet, an axial Distance a. The drive shaft 3 with the impeller 14 is thus Movable in the housing 2 without contact. The width b of the Housing 2, which is parallel to the longitudinal axis 4 of the drive shaft 3 is measured, increases in a range between Gas inlet 5 and the outer periphery 13 of the blades 11 radially towards the outside. The distance d between the partition 8 and the rear wall 15 of the housing is constant, while the distance c between the partition 8 and the Front wall 18 of the housing 2 in a region of the partition 8 decreases radially outwards. The distance c on the However, gas inlet 5 facing side is on each Place larger than the distance d on the gas outlet 6 facing page 10.

Im Betrieb des Zentrifugalabscheiders 1 rotiert die Antriebswelle 3 in Richtung des Pfeils 20 um die Längsachse 4. Zu reinigendes Gas strömt etwa in Richtung des Pfeils 21 axial in das Gehäuse 2 und in den Bereich des Laufrads 14 ein und wird durch die Rotation des Laufrads 14 radial nach außen beschleunigt. Im Ringraum 24 zwischen dem Außenumfang 13 der Schaufeln 11 und dem Außenumfang 16 des Gehäuses 2 findet ein Druckaufbau im Gas statt. Dadurch wird Öl aus dem Gas abgetrennt und fließt durch den Ölauslaß 7 in Richtung des Pfeils 22 aus dem Gehäuse 2. Das gereinigte Gas strömt auf die dem Gasauslaß 6 zugewandte Seite 10 der Trennwand 8 und von dort durch den Gasauslaß 6 in Richtung des Pfeils 23 aus dem Gehäuse 2. When the centrifugal separator 1 is operating, the drive shaft rotates 3 in the direction of arrow 20 about the longitudinal axis 4. Gas to be cleaned flows approximately in the direction of arrow 21 axially into the housing 2 and into the region of the impeller 14 and is radially turned by the rotation of the impeller 14 accelerated outside. In the annular space 24 between the outer circumference 13 of the blades 11 and the outer circumference 16 of the housing 2 pressure builds up in the gas. This will drain oil separated from the gas and flows through the oil outlet 7 in the direction arrow 22 out of the housing 2. The cleaned gas flows on the gas outlet 6 facing side 10 of the Partition 8 and from there through the gas outlet 6 in the direction arrow 23 out of the housing 2.

Bei geringen Drehzahlen der Antriebswelle 3 kann der Zentrifugalabscheider 1 als Vorabscheider eingesetzt werden. Bei größeren Drehzahlen oder durch die Vergrößerung des Durchmessers des Laufrads 14 und des Gehäuses 2 ist auch ein Einsatz als Endabscheider zweckmäßig. Über die Dimensionierung und die Anpassung der Drehzahl kann der Zentrifugalabscheider 1 so an die benötigte Abscheideleistung angepaßt werden.At low speeds of the drive shaft 3, the Centrifugal separator 1 used as a pre-separator become. At higher speeds or by enlarging of the diameter of the impeller 14 and the housing 2 also suitable for use as a final separator. About the Dimensioning and the adjustment of the speed can Centrifugal separator 1 to the required separation capacity be adjusted.

Claims (11)

Zentrifugalabscheider zur Abscheidung von Öl aus einem Gasstrom, insbesondere bei der Entlüftung des Kurbelgehäuses einer Brennkraftmaschine, mit einem Gehäuse (2), in dem Strömungsleitvorrichtungen angeordnet sind, die mit einer Antriebswelle (3) verbunden sind, wobei in das Gehäuse ein Gaseinlaß (5) mündet und aus dem Gehäuse (2) ein Gasauslaß (6) sowie ein Ölauslaß (7) führt,
dadurch gekennzeichnet, daß das Gehäuse (2) drehfest gehalten und in dem Gehäuse (2) ein Laufrad (14) mit eine Zentrifugalströmung bewirkenden Schaufeln (11) um die Längsachse (4) der Antriebswelle (3) rotierend angeordnet ist.Centrifugal separator for separating oil from a gas stream, in particular when venting the crankcase of an internal combustion engine, with a housing (2) in which flow guiding devices are arranged which are connected to a drive shaft (3), a gas inlet (5) in the housing opens and leads from the housing (2) a gas outlet (6) and an oil outlet (7),
characterized in that the housing (2) is held in a rotationally fixed manner and in the housing (2) an impeller (14) with blades (11) causing centrifugal flow is arranged to rotate about the longitudinal axis (4) of the drive shaft (3). Zentrifugalabscheider nach Anspruch 1,
dadurch gekennzeichnet, daß der Gaseinlaß (5) am Umfang der Antriebswelle (3) zwischen Gehäuse (2) und Antriebswelle (3) angeordnet ist und die Antriebswelle vollständig umgibt.Centrifugal separator according to claim 1,
characterized in that the gas inlet (5) is arranged on the circumference of the drive shaft (3) between the housing (2) and the drive shaft (3) and completely surrounds the drive shaft. Zentrifugalabscheider nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Gaseinlaß (5) und der Gasauslaß (6) auf gegenüberliegenden Seiten (9, 10) einer sich senkrecht zur Längsachse (4) der Antriebswelle (3) erstreckenden Trennwand (8) angeordnet sind, wobei auf der dem Gaseinlaß (5) zugewandten Seite (9) der Trennwand (8) Schaufeln (11) angeordnet sind. Centrifugal separator according to claim 1 or 2,
characterized in that the gas inlet (5) and the gas outlet (6) are arranged on opposite sides (9, 10) of a partition wall (8) extending perpendicular to the longitudinal axis (4) of the drive shaft (3), the gas inlet ( 5) facing side (9) of the partition (8) blades (11) are arranged. Zentrifugalabscheider nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die sich in Richtung der Längsachse (4) der Antriebswelle (3) erstreckende Breite (b) des Gehäuses (2) in einem Bereich zwischen Gaseinlaß (5) und dem Außenumfang (13) der Schaufeln (11) radial nach außen abnimmt.Centrifugal separator according to one of claims 1 to 3,
characterized in that the width (b) of the housing (2) extending in the direction of the longitudinal axis (4) of the drive shaft (3) extends radially outward in a region between the gas inlet (5) and the outer circumference (13) of the blades (11) decreases. Zentrifugalabscheider nach Anspruch 3 oder 4,
dadurch gekennzeichnet, daß die Trennwand (8) sich von der Antriebswelle (3) radial nach außen bis zum Außenumfang (13) der Schaufeln (11) erstreckt.Centrifugal separator according to claim 3 or 4,
characterized in that the partition (8) extends radially outward from the drive shaft (3) to the outer circumference (13) of the blades (11). Zentrifugalabscheider nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet, daß auf der dem Gasauslaß (6) zugewandten Seite (10) der Trennwand eine Zentripetalströmung erzeugende Schaufeln (12) angeordnet sind.Centrifugal separator according to one of claims 3 to 5,
characterized in that blades (12) producing a centripetal flow are arranged on the side (10) of the partition facing the gas outlet (6). Zentrifugalabscheider nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Antriebswelle (3) die Nockenwelle oder die Ausgleichswelle einer Brennkraftmaschine ist.Centrifugal separator according to one of claims 1 to 6,
characterized in that the drive shaft (3) is the camshaft or the balance shaft of an internal combustion engine. Zentrifugalabscheider nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß das Gehäuse (2) am Zylinderkopf einer Brennkraftmaschine angeformt ist. Centrifugal separator according to one of claims 1 to 7,
characterized in that the housing (2) is integrally formed on the cylinder head of an internal combustion engine. Zentrifugalabscheider nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß die Antriebswelle (3) im Gehäuse (2) in axialem Abstand (a) vor einer Gehäusewand (15) endet.Centrifugal separator according to one of claims 1 to 8,
characterized in that the drive shaft (3) ends in the housing (2) at an axial distance (a) in front of a housing wall (15). Zentrifugalabscheider nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß der Gasauslaß (6) gegenüber den dem Gasauslaß (6) zugewandten Schaufeln (12) radial nach innen versetzt ist.Centrifugal separator according to one of claims 1 to 9,
characterized in that the gas outlet (6) is offset radially inward relative to the blades (12) facing the gas outlet (6). Zentrifugalabscheider nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß der Ölauslaß (7) am Umfang (16) des Gehäuses (2) angeordnet ist.Centrifugal separator according to one of claims 1 to 10,
characterized in that the oil outlet (7) is arranged on the circumference (16) of the housing (2).
EP03103795A 2002-11-08 2003-10-14 Centrifugal oil separator Expired - Lifetime EP1422389B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10251940 2002-11-08
DE10251940A DE10251940A1 (en) 2002-11-08 2002-11-08 Centrifugal oil separator for gas stream is used with blowby gases from crankcase of internal combustion engine has rotor shaped as centrifugal compressor with additional tangential outlet for oil

Publications (3)

Publication Number Publication Date
EP1422389A2 true EP1422389A2 (en) 2004-05-26
EP1422389A3 EP1422389A3 (en) 2005-09-28
EP1422389B1 EP1422389B1 (en) 2007-09-19

Family

ID=32115368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03103795A Expired - Lifetime EP1422389B1 (en) 2002-11-08 2003-10-14 Centrifugal oil separator

Country Status (4)

Country Link
US (1) US7033410B2 (en)
EP (1) EP1422389B1 (en)
AT (1) ATE373772T1 (en)
DE (2) DE10251940A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1464797A2 (en) * 2003-02-21 2004-10-06 Hengst GmbH & Co. KG Blow by gas oil separating device
RU209901U1 (en) * 2021-12-20 2022-03-23 Публичное Акционерное Общество "Одк-Сатурн" Air separator device

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0520889B1 (en) 2004-11-05 2020-11-03 Donaldson Company, Inc. method of filtering a liquid stream and method of filtering a heated fluid
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
EA011777B1 (en) 2005-02-04 2009-06-30 Дональдсон Компани, Инк. A filter and a system of crankcase ventilation
EP1858618B1 (en) 2005-02-22 2009-09-16 Donaldson Company, Inc. Aerosol separator
US8075668B2 (en) 2005-03-29 2011-12-13 Dresser-Rand Company Drainage system for compressor separators
EP2063978B1 (en) * 2006-09-19 2014-07-09 Dresser-Rand Company Rotary separator drum seal
US8302779B2 (en) 2006-09-21 2012-11-06 Dresser-Rand Company Separator drum and compressor impeller assembly
CA2662780C (en) 2006-09-25 2015-02-03 William C. Maier Axially moveable spool connector
BRPI0717088B1 (en) 2006-09-25 2019-10-29 Dresser Rand Co coupling protection system
EP2066983B1 (en) 2006-09-25 2013-12-11 Dresser-Rand Company Compressor mounting system
BRPI0718451A2 (en) 2006-09-25 2013-11-26 Dresser Rand Co FLUID DEFLECTOR FOR FLUID SEPARATOR DEVICES
BRPI0717571B1 (en) 2006-09-25 2018-11-27 Dresser Rand Co connecting spool for connecting a compressor housing to a drive housing of an industrial compression system
EP2066422B1 (en) 2006-09-26 2012-06-27 Dresser-Rand Company Improved static fluid separator device
FR2913061B1 (en) * 2007-02-27 2009-05-22 Snecma Sa SHEATHING SYSTEM FOR AN AIRCRAFT ENGINE.
DE102007030277A1 (en) * 2007-06-28 2009-01-08 Mann + Hummel Gmbh Turbocharger for an internal combustion engine
BRPI0908051A2 (en) 2008-03-05 2015-08-11 Dresser Rand Co Compressor set including separator and ejector pump
US8062400B2 (en) 2008-06-25 2011-11-22 Dresser-Rand Company Dual body drum for rotary separators
US7922218B2 (en) 2008-06-25 2011-04-12 Dresser-Rand Company Shear ring casing coupler device
US8079805B2 (en) 2008-06-25 2011-12-20 Dresser-Rand Company Rotary separator and shaft coupler for compressors
US8210804B2 (en) 2009-03-20 2012-07-03 Dresser-Rand Company Slidable cover for casing access port
US8087901B2 (en) 2009-03-20 2012-01-03 Dresser-Rand Company Fluid channeling device for back-to-back compressors
US8061972B2 (en) 2009-03-24 2011-11-22 Dresser-Rand Company High pressure casing access cover
EP2478229B1 (en) 2009-09-15 2020-02-26 Dresser-Rand Company Improved density-based compact separator
WO2011084161A2 (en) * 2010-01-08 2011-07-14 Husqvarna Forestry Products N.A. Inc. Mechanical breather system for a four-stroke engine
EP2533905B1 (en) 2010-02-10 2018-07-04 Dresser-Rand Company Separator fluid collector and method
SE534773C2 (en) * 2010-04-09 2011-12-13 Alfa Laval Corp Ab Centrifugal separator located inside an internal combustion engine
DE102010015838A1 (en) * 2010-04-20 2011-10-20 Mann + Hummel Gmbh Oil separator for crank case ventilation system to separate aerosol coming from crank case of combustion engine of motor car from oil, has impeller comprising cavity, where aerosol in cavity is accelerated with impeller
US8663483B2 (en) 2010-07-15 2014-03-04 Dresser-Rand Company Radial vane pack for rotary separators
WO2012009158A2 (en) 2010-07-15 2012-01-19 Dresser-Rand Company Enhanced in-line rotary separator
WO2012012018A2 (en) 2010-07-20 2012-01-26 Dresser-Rand Company Combination of expansion and cooling to enhance separation
WO2012012143A2 (en) 2010-07-21 2012-01-26 Dresser-Rand Company Multiple modular in-line rotary separator bundle
JP5936144B2 (en) 2010-09-09 2016-06-15 ドレッサー ランド カンパニーＤｒｅｓｓｅｒ−Ｒａｎｄ Ｃｏｍｐａｎｙ Drain pipe controlled to be washable
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EP2826965B1 (en) * 2013-07-15 2020-11-04 Caterpillar Energy Solutions GmbH Removing of blow-by gas out of crankcase without auxiliary drive
DE102015205557B4 (en) * 2015-03-26 2017-05-24 Mtu Friedrichshafen Gmbh Internal combustion engine and method for operating an internal combustion engine
DE102015224226A1 (en) * 2015-12-03 2017-06-08 Mahle International Gmbh Liquid separation device for the separation of liquid
DE102016008299B4 (en) * 2016-07-06 2020-12-31 Neander Motors Ag Oil separator for an internal combustion engine
DE102016217440A1 (en) 2016-09-13 2018-03-15 Mahle International Gmbh separating
CN110090470A (en) * 2019-04-11 2019-08-06 北京康得利智能科技有限公司 Centrifugal degasser
CN111195463A (en) * 2020-02-13 2020-05-26 刘林杰 Adhesive hot working waste gas collection treatment facility

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585695A (en) * 1940-04-30 1947-02-19 Air Equipement Improvements in or relating to means for separating oil and other liquid particles from air or other gas
DE966346C (en) * 1945-02-27 1957-07-25 Daimler Benz Ag Oil slingshot, especially for the oil circuit of aircraft engines
DE3541204A1 (en) * 1985-11-21 1987-05-27 Audi Ag Oil separator for the crankcase ventilation of an internal combustion engine
US5144446A (en) * 1990-01-31 1992-09-01 Sony Corporation Image defect correcting circuit for a solid state imager
WO2001036103A1 (en) * 1999-11-15 2001-05-25 Alfa Laval Ab A method and an apparatus for cleaning of gas

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172729A (en) * 1939-09-12 Centrifugal breather
ZA713996B (en) * 1971-06-18 1973-05-30 D Loudon Improvements in centrifugal separators
US4066552A (en) * 1974-09-13 1978-01-03 Sundstrand Corporation Combined pump and self-cleaning centrifugal contamination separator
FR2468410B1 (en) * 1979-10-31 1985-06-21 Saget Pierre CENTRIFUGAL SEPARATION PROCESS AND APPARATUS FOR IMPLEMENTING IT APPLICABLE TO A MIXTURE OF PHASES OF ANY STATE
BE1005005A5 (en) * 1991-05-30 1993-03-16 Vandereviere Laurent SPIN RENDE CYLINDER WITH DRUM FOR TREATMENT OF AIR ON Filtrage.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585695A (en) * 1940-04-30 1947-02-19 Air Equipement Improvements in or relating to means for separating oil and other liquid particles from air or other gas
DE966346C (en) * 1945-02-27 1957-07-25 Daimler Benz Ag Oil slingshot, especially for the oil circuit of aircraft engines
DE3541204A1 (en) * 1985-11-21 1987-05-27 Audi Ag Oil separator for the crankcase ventilation of an internal combustion engine
US5144446A (en) * 1990-01-31 1992-09-01 Sony Corporation Image defect correcting circuit for a solid state imager
WO2001036103A1 (en) * 1999-11-15 2001-05-25 Alfa Laval Ab A method and an apparatus for cleaning of gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1464797A2 (en) * 2003-02-21 2004-10-06 Hengst GmbH & Co. KG Blow by gas oil separating device
EP1464797A3 (en) * 2003-02-21 2005-10-05 Hengst GmbH & Co. KG Blow by gas oil separating device
RU209901U1 (en) * 2021-12-20 2022-03-23 Публичное Акционерное Общество "Одк-Сатурн" Air separator device

Also Published As

Publication number Publication date
US20040144071A1 (en) 2004-07-29
US7033410B2 (en) 2006-04-25
EP1422389B1 (en) 2007-09-19
ATE373772T1 (en) 2007-10-15
DE10251940A1 (en) 2004-05-19
EP1422389A3 (en) 2005-09-28
DE50308210D1 (en) 2007-10-31

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