DE3128470C2 - Cyclone oil separator - Google Patents

Cyclone oil separator

Info

Publication number
DE3128470C2
DE3128470C2 DE19813128470 DE3128470A DE3128470C2 DE 3128470 C2 DE3128470 C2 DE 3128470C2 DE 19813128470 DE19813128470 DE 19813128470 DE 3128470 A DE3128470 A DE 3128470A DE 3128470 C2 DE3128470 C2 DE 3128470C2
Authority
DE
Germany
Prior art keywords
cyclone
oil separator
nozzle
section
separator
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.)
Expired
Application number
DE19813128470
Other languages
German (de)
Other versions
DE3128470A1 (en
Inventor
Joachim 8190 Wolfratshausen Hahn
Richard Ing.(Grad.) 8000 Muenchen Henning
Hans Harald Dipl.-Ing. 8056 Neufahrn Melzer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE19813152747 priority Critical patent/DE3152747C2/en
Priority to DE19813128470 priority patent/DE3128470C2/en
Publication of DE3128470A1 publication Critical patent/DE3128470A1/en
Application granted granted Critical
Publication of DE3128470C2 publication Critical patent/DE3128470C2/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422Separating oil and gas with a centrifuge device
    • F01M2013/0427Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0488Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Description

dadurch gekennzeichnet,characterized,

1010

— daß die Einlaßdüse (8) einen Rechteckquerschnitt aufweist und . ,- That the inlet nozzle (8) has a rectangular cross-section and. ,

— daß eine Wand (10) der Einlaßdüse (8) beweglich und im Sinne einer Verkleinerung des Düsenquerschnittes durch eine Feder beaufschlagt ist " '- That a wall (10) of the inlet nozzle (8) is movable and in the sense of a reduction in size of the nozzle cross-section is acted upon by a spring "'

2. Zyklonölabscheider nach Anspruch 1, dadurch gekennzeichnet,2. Cyclone oil separator according to claim 1, characterized in that

— daß die bewegliche Wand (10) der Einlaßdüse (8) aus federndem Material besteht und am Düsenanfang derart eingespannt ist, daß die Federwirkung der Wand (10) im Sinne einer Verkleinerung des Düsenquerschnittes wirkt- That the movable wall (10) of the inlet nozzle (8) consists of resilient material and on Nozzle beginning is clamped in such a way that the spring action of the wall (10) in the sense of a Reduction of the nozzle cross-section takes effect

3030th

Die Erfindung bezieht sich auf einen Zyklonölabscheider für die Kurbelgehäuse-Entlüftung von Brennkraftmaschinen der Bauart nacw dem Oberbegriff des Anspruches 1.The invention relates to a cyclone oil separator for crankcase ventilation of internal combustion engines the type according to the preamble of claim 1.

Bei einem bekannten Zy! ;onölabscheider dieser Bauart (DE-Gm 19 78 048) ergibt sich eine unterschiedliche Abscheidewirkung in Abhängigkeit vom Luftdurchsatz. Daher ist zur ausreichenden Abscheidewirkung bei kleinen Luftdurchsätzen eine enge Düse vorhanden, die bei großen Luftdurchsätzen ein unnötig hohes Druckgefälle erzeugt Dieses wirkt sich einerseits auf die Größe des Kurbelgehäuse-Unterdruckes aus und erfordert andererseits eine entsprechend hohe Flüssigkeitssäule zum sicheren Verschließen des Ölablaufes gegen Luftdurchtritt, bzw. ein besonderes Rückschlagventil im Ölablauf, das erst bei einer bestimmten Höhe der Flüssigkeitssäule Ol ablaufen läßt.With a well-known Zy! ; on oil separator of this type (DE-Gm 19 78 048) results in a different Separation effect depending on the air flow rate. Therefore, there is a sufficient separation effect a narrow nozzle is available for small air throughputs, which is unnecessary for large air throughputs high pressure gradient generated This has an effect on the one hand on the size of the crankcase vacuum and On the other hand, it requires a correspondingly high column of liquid to securely close the oil drain against air penetration, or a special non-return valve in the oil drain, which only works at a certain height the liquid column allows oil to drain.

Der Erfindung liegt die Aufgabe zugrunde, einen Zyklonölabscheider der Bauart nach dem Oberbegriff des Anspruches 1 zu schaffen, der auch bei unterschiedlichen Luftdurchsätzen stets eine gleichbleibend gute Abscheidewirkung gewährleistet.The invention is based on the object of a cyclone oil separator of the type according to the preamble of claim 1 to create, which is always a consistently good even with different air flow rates Separation guaranteed.

Diese Aufgabe wird erfindungsgemäß durch den kennzeichnenden Teil des Anspruches 1 gelöst.According to the invention, this object is achieved by the characterizing part of claim 1.

Durch die Erfindung wird der Düsenquerschnitt dem jeweiligen Luftdurchsatz angepaßt, so daß stets eine gleichmäßig gute Abscheidung erreicht wird. Die Merkmale des Anspruches 2 ergeben eine besonders einfache und kompakte Ausführungsform.Through the invention, the nozzle cross-section is adapted to the respective air throughput, so that there is always one uniformly good deposition is achieved. The features of claim 2 result in a special one simple and compact embodiment.

Durch die AT-PS 1 83 207 ist zwar ein Zyklonstaubabscheider mit einer Einlaßdüse mit Rechteckquerschnitt bekannt, deren eine Wand beweglich ist, jedoch kann diese Wand nur mittels einer Stellschraube eingestellt werden. Eine selbsttätige Einstellung auf verschiedene Durchsätze ist nicht vorgesehen.AT-PS 1 83 207 is a cyclone dust separator with an inlet nozzle with a rectangular cross-section known, one wall of which is movable, but this wall can only be adjusted by means of an adjusting screw will. Automatic adjustment to different throughputs is not provided.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles erläutert Es zeigtIn the following the invention is explained with reference to an embodiment shown in the drawing It shows

Fig. 1 einen teilweise geschnittenen Zyklonölabscheider für die Kurbelgehäuse-Entlüftung von Brennkraftmaschinen, der im Zylinderkopf bzw. an der Innenseite der Zylinderkopfhaube einer Brennkraftmaschine angeordnet ist und1 shows a partially sectioned cyclone oil separator for the crankcase ventilation of internal combustion engines, that in the cylinder head or on the inside of the cylinder head cover of an internal combustion engine is arranged and

F i g. 2 einen Schnitt entlang der linie H-II der F i g. 1.F i g. 2 shows a section along the line H-II in FIG. 1.

Ein Abscheidergehäuse 1 eines Zyklonölabscheiders für die Kurbelgehäuse-Entlüftung einer nicht dargestellten Brennkraftmaschine ist unmittelbar unter deren Zylinderkopfhaube 2 angeordnet, so daß ein Abschnitt der Zylinderkopfhaube 2, der einen Abluftstutzeii 3 trägt als Deckel für den Zyklonölabscheider dient Zwischen dem Abscheidergehäuse 1 und der Zylinderkopfhaube 2 ist eine Zwischenplatte 4 angeordnet Die Abdichtung zwischen dem Abscheidergehäuse 1 und der Zylinderkopfhaube 2 bzw. der Zwischenplatte 4 erfolgt durch eine als Membrane ausgebildete Dichtung 5.A separator housing 1 of a cyclone oil separator for the crankcase ventilation of a not shown Internal combustion engine is arranged directly under the cylinder head cover 2, so that a section the cylinder head cover 2, which has an exhaust air duct 3 serves as a cover for the cyclone oil separator between the separator housing 1 and the cylinder head cover 2, an intermediate plate 4 is arranged. The seal between the separator housing 1 and the The cylinder head cover 2 or the intermediate plate 4 takes place through a seal 5 designed as a membrane.

Von der Zwischenplatte 4 ragt ein Stutzen 6 in das Abscheidergehäuse 1, so daß zwischen beiden eine ringförmige. Zyklonkammer 7 gebildet ist Eine Einlaßdüse 8 mündet tangential in die ringförmige Zyklonkammer 7. Die EirJaßdüse 8 weist einen rechteckigen Querschnitt auf, dessen Längsseiten durch einen starren Wandabschnitt 9 und einen federnd beweglichen Wandabschnitt 10 gebildet werden. Der federnde Wandabschnitt 10 besteht entweder selbst aus federndem Material oder ist in nicht dargestellter Weise durch eine Feder abgestützt Die Federwirkung erfolgt in jedem Fall in Richtung einer Verkleinerung des Düsenquerschnittes. Die Federcharakteristik wird dabei auf die zu erwartenden Luftdurchsätze derart abgestimmt daß bei jedem Luftdurchsatz die für eine gute Abscheidewirkung erforderliche Wirbelgeschwindigkeit und damit Zentrifugalkraft in der Zyklonkammer 7 erreicht wird.From the intermediate plate 4, a nozzle 6 protrudes into the separator housing 1, so that between the two annular. Cyclone chamber 7 is formed. An inlet nozzle 8 opens tangentially into the annular cyclone chamber 7. The EirJaßdüse 8 has a rectangular cross section, the long sides of which are rigid Wall section 9 and a resiliently movable wall section 10 are formed. The springy one Wall section 10 is either itself made of resilient material or is through in a manner not shown a spring supported The spring action always takes place in the direction of a reduction in size Nozzle cross-section. The spring characteristics are matched to the expected air flow rates that the vortex speed required for a good separation effect at every air throughput and thus centrifugal force in the cyclone chamber 7 is achieved.

Das Abscheidergehäuse 1 weist eine sich nach unten trichterförmig verengende Verlängerung 11 auf, die in einen ölablauf 12 übergeht Der ölablauf 12 taucht in einen schematisch dargestellten ölsumpf 13 ein, über dessen Überlauf 14 das abgeschiedene öl in die Ölwanne der Brennkraftmaschine geleitet wird.The separator housing 1 has an extension 11 which narrows downwards in the shape of a funnel and which is shown in FIG an oil drain 12 passes over The oil drain 12 is immersed in a schematically shown oil sump 13, via the overflow 14 of which the separated oil enters the Oil pan of the internal combustion engine is passed.

Beim Betrieb der Brennkraftmaschine gelangt ölhaltige Luft vom Kurbelraum der Brennkraftmaschine über eine oder mehrere integrierte Entlüftungsleitungen in den Zylinderkopf. Dort strömt diese Luft durch die Einlaßdüse 8 tangential in die ityklonkammer 7 und tritt nach Abscheidung des Öles über den Stutzen 6 in die zwischen der membranartigen Dichtung 5 bzw. der Zwischenplatte 4 und der Zyliriderkopfhaube 2 gebildete Kammer 15 über. Von dort wird die entölte Luft über den Abluftstutzen 3 zur Ansauganlage der Brennkraftmaschine geleitet Bei zu hohem Unterdruck in der Ansauganlage wird die Dichtung 5 gegen die Wirkung einer Feder 16 gegen das in die Kammer 15 ragende Ende des Abluftstutzens .1 gedruckt und verschließt ihn, da die der Kammer 15 abgewandte Seite der Dichtung 5 mit Umgebungsdruck bea-ifschlagt istWhen the internal combustion engine is operating, oily air passes from the crankcase of the internal combustion engine one or more integrated ventilation lines in the cylinder head. There this air flows through the Inlet nozzle 8 tangentially into the ityklonkammer 7 and occurs after the oil has been deposited via the nozzle 6 into the between the membrane-like seal 5 or the Intermediate plate 4 and the Zyliriderkopfhaube 2 formed chamber 15 over. From there the de-oiled air is passed over the exhaust port 3 to the intake system of the internal combustion engine If the negative pressure in the intake system is too high, the seal 5 is counteracted a spring 16 is pressed against the end of the exhaust air nozzle protruding into the chamber 15 and closes it, since the side of the seal 5 facing away from the chamber 15 is subjected to ambient pressure

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentansprüche;Claims; 1, Zyklonölabscheider für die Kurbelgehäuse-Entlüftung von Brennkraftmaschinen,1, cyclone oil separator for crankcase ventilation of internal combustion engines, — mit einer Einlaßdüse für die ölhaltige Kurbelgehäuseluft, - with an inlet nozzle for the oily crankcase air, — die tangential in eine Zyklonkammer im Abscheidergehäuse mündet,- the tangential into a cyclone chamber in the Separator housing opens,
DE19813128470 1981-07-18 1981-07-18 Cyclone oil separator Expired DE3128470C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19813152747 DE3152747C2 (en) 1981-07-18 1981-07-18 Cyclone oil separator
DE19813128470 DE3128470C2 (en) 1981-07-18 1981-07-18 Cyclone oil separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813128470 DE3128470C2 (en) 1981-07-18 1981-07-18 Cyclone oil separator

Publications (2)

Publication Number Publication Date
DE3128470A1 DE3128470A1 (en) 1983-01-27
DE3128470C2 true DE3128470C2 (en) 1983-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813128470 Expired DE3128470C2 (en) 1981-07-18 1981-07-18 Cyclone oil separator

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Country Link
DE (1) DE3128470C2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214324A1 (en) * 1992-04-30 1993-11-04 Knecht Filterwerke Gmbh Separator device for oil-containing aerosols - has float valve, to prevent reverse oil flow in downpipe from cyclone to oil sump
DE4404709C1 (en) * 1994-02-15 1995-06-08 Freudenberg Carl Fa Separator of liquid from liquid-bearing gas
DE4344506A1 (en) * 1993-12-24 1995-06-29 Knecht Filterwerke Gmbh Cyclone for separating oil
DE19838247A1 (en) * 1998-08-22 2000-02-24 Knecht Filterwerke Gmbh Oil mist separator for internal combustion engine has return valve shutting off or opening passage of fluid flow through outlet depending upon pressure head value on cyclone side of valve
DE10122994A1 (en) * 2001-05-11 2002-11-21 Montaplast Gmbh Cyclone oil separator has inlet aperture which can also be used as run-out aperture
DE10320215A1 (en) * 2003-05-05 2004-12-09 Dichtungstechnik G. Bruss Gmbh & Co. Kg Oil separation unit for blow by gas of an internal combustion engine comprises a separator element with at least one passage in the form of a long narrow gap whose width is alterable
DE102012022551A1 (en) * 2012-11-17 2014-05-22 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Cyclone separator for separation of oil droplets from crankcase gases of internal combustion engine of motor car, has valve with larger cross-section that is designed such that crankcase gas with increasing flow rate is released into inlet
EP1080298B2 (en) 1999-03-18 2018-08-29 Hengst SE & Co. KG Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60192821A (en) * 1984-03-15 1985-10-01 Honda Motor Co Ltd Crank case ventilation device for internal-combustion engine
US5090873A (en) * 1989-12-18 1992-02-25 Copeland Corporation Crankcase oil separator
DE4128453B4 (en) * 1991-08-28 2005-08-11 Deutz Ag crankcase ventilation
DE19703771C1 (en) * 1997-02-01 1998-06-25 Daimler Benz Ag Ventilation device for a crankcase of an internal combustion engine
DE19715061C2 (en) * 1997-04-11 1999-01-21 Daimler Benz Ag Ventilation device for a crankcase of an internal combustion engine
DE19801608A1 (en) * 1998-01-17 1999-07-22 Audi Ag Automotive motor oil breather unit incorporates a sump float
DE19918311A1 (en) 1999-04-22 2000-11-02 Hengst Walter Gmbh & Co Kg Process for de-oiling crankcase ventilation gases and devices for carrying out the process
DE29908116U1 (en) * 1999-05-06 2000-09-28 Hengst Walter Gmbh & Co Kg Oil separator for de-oiling crankcase ventilation gases of an internal combustion engine
US6379411B1 (en) * 2000-04-26 2002-04-30 Bechtel Bwxt Idaho, Llc Two stroke engine exhaust emissions separator
DE10232517A1 (en) 2002-07-18 2004-02-19 Daimlerchrysler Ag Device for separating lubricant-air mixtures
US7080636B2 (en) 2003-05-05 2006-07-25 Dichtungstechnik G. Bruss Gmbh & Co. Kg Oil separating device for a combustion engine
DE102016015111B4 (en) 2016-12-20 2021-10-14 Deutz Aktiengesellschaft Internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT183207B (en) * 1949-08-24 1955-09-26 Franz Ing Nitsche Dust collector
DE1978048U (en) * 1967-11-18 1968-02-01 Daimler Benz Ag DEVICE FOR VENTILATING THE ENGINE ROOM OF COMBUSTION MACHINES.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214324A1 (en) * 1992-04-30 1993-11-04 Knecht Filterwerke Gmbh Separator device for oil-containing aerosols - has float valve, to prevent reverse oil flow in downpipe from cyclone to oil sump
DE4214324C2 (en) * 1992-04-30 1998-04-30 Knecht Filterwerke Gmbh Device for separating oily aerosols
DE4344506A1 (en) * 1993-12-24 1995-06-29 Knecht Filterwerke Gmbh Cyclone for separating oil
DE4344506C2 (en) * 1993-12-24 1998-04-16 Knecht Filterwerke Gmbh Cyclone for separating oil
DE4404709C1 (en) * 1994-02-15 1995-06-08 Freudenberg Carl Fa Separator of liquid from liquid-bearing gas
EP0667444A1 (en) * 1994-02-15 1995-08-16 Firma Carl Freudenberg Liquid separator
DE19838247A1 (en) * 1998-08-22 2000-02-24 Knecht Filterwerke Gmbh Oil mist separator for internal combustion engine has return valve shutting off or opening passage of fluid flow through outlet depending upon pressure head value on cyclone side of valve
EP1080298B2 (en) 1999-03-18 2018-08-29 Hengst SE & Co. KG Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine
DE10122994A1 (en) * 2001-05-11 2002-11-21 Montaplast Gmbh Cyclone oil separator has inlet aperture which can also be used as run-out aperture
DE10122994C2 (en) * 2001-05-11 2003-08-07 Montaplast Gmbh Cyclone separator using the inlet opening as a drain opening
DE10320215A1 (en) * 2003-05-05 2004-12-09 Dichtungstechnik G. Bruss Gmbh & Co. Kg Oil separation unit for blow by gas of an internal combustion engine comprises a separator element with at least one passage in the form of a long narrow gap whose width is alterable
DE10320215B4 (en) * 2003-05-05 2005-04-21 Dichtungstechnik G. Bruss Gmbh & Co. Kg Oil separation unit for blow by gas of an internal combustion engine comprises a separator element with at least one passage in the form of a long narrow gap whose width is alterable
DE102012022551A1 (en) * 2012-11-17 2014-05-22 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Cyclone separator for separation of oil droplets from crankcase gases of internal combustion engine of motor car, has valve with larger cross-section that is designed such that crankcase gas with increasing flow rate is released into inlet

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