EP1080298B1 - Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine - Google Patents

Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine Download PDF

Info

Publication number
EP1080298B1
EP1080298B1 EP00916937A EP00916937A EP1080298B1 EP 1080298 B1 EP1080298 B1 EP 1080298B1 EP 00916937 A EP00916937 A EP 00916937A EP 00916937 A EP00916937 A EP 00916937A EP 1080298 B1 EP1080298 B1 EP 1080298B1
Authority
EP
European Patent Office
Prior art keywords
oil separator
combustion engine
oil
characterized
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.)
Active
Application number
EP00916937A
Other languages
German (de)
French (fr)
Other versions
EP1080298B2 (en
EP1080298A1 (en
Inventor
Jürgen BUSEN
Sieghard Pietschner
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.)
Hengst SE and Co KG
Original Assignee
Hengst Ing Walter GmbH and Co KG
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
Family has litigation
Priority to DE1999112271 priority Critical patent/DE19912271A1/en
Priority to DE19912271 priority
Application filed by Hengst Ing Walter GmbH and Co KG filed Critical Hengst Ing Walter GmbH and Co KG
Priority to PCT/EP2000/002230 priority patent/WO2000057038A1/en
Publication of EP1080298A1 publication Critical patent/EP1080298A1/en
Publication of EP1080298B1 publication Critical patent/EP1080298B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7901552&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1080298(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of EP1080298B2 publication Critical patent/EP1080298B2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

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
    • F01M2013/0038Layout of crankcase breathing systems
    • F01M2013/005Layout of crankcase breathing systems having one or more deoilers
    • F01M2013/0061Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers
    • F01M2013/0066Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers in parallel
    • 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

Abstract

The invention relates to an oil separator (1) for removing oil from the crankcase ventilation gases of an internal combustion engine, comprising a cyclone which has a gas inlet that is connected to the crankcase of the internal combustion engine, a gas outlet that is connected the induction tract of the internal combustion engine and an oil outlet that is connected to an oil sump of the internal combustion engine. The novel oil separator is characterised in that instead of one single cyclone, several smaller cyclones (11, 12, 13, 14) connected in parallel are provided.

Description

The present invention relates to an oil separator for de-oiling crankcase ventilation qases one Internal combustion engine, the oil separator being a cyclone comprises one with the crankcase of the internal combustion engine connected gas inlet, one with the intake tract the internal combustion engine connected gas outlet and one connected to an oil sump of the internal combustion engine Has oil outlet.

An oil separator of the type mentioned above is from the DE 42 14 324 C2 known. With this oil separator a single cyclone is used, which regarding its Size is such that it is the maximum amount of ventilation gases can process. As essential Feature is provided in this known oil separator that a down pipe at the oil outlet of the cyclone connects, whose mouth below the oil level of the Oil sump of the associated internal combustion engine arranged is that in a lower cyclone-side housing part housed, normally open float valve one Kickback from the oil sump of the internal combustion engine is prevented and that the entire oil separator as an assembly is separably connected to the downpipe. These special Features of the oil separator should ensure that in the event of sudden and severe changes in operating conditions the associated internal combustion engine, for example when full throttle is reached from idle, no oil from the oil sump of the internal combustion engine in the Inside of the cyclone is torn because of the change operating conditions extremely large pressure differences occur.

The problem outlined that addresses the above Scripture is employed by the one described therein Oil separator released, but this oil separator has with the single cyclone the disadvantage that he not over the entire area occurring in practice of operating conditions of the internal combustion engine optimal oil separation result achieved. The occurring different operating conditions of the internal combustion engine on the one hand lead to volume flows of different sizes of ventilation gases from the crankcase and on the other hand to a different level of oil freight these vent gases. Because a cyclone is only for a certain, relatively narrow range of operating conditions the internal combustion engine works optimally in operating conditions outside of this optimal Amount of oil not yet desired in the intake air of the internal combustion engine discharged from the cyclone supplied gases.

Therefore, for the present invention Task, an oil separator of the type mentioned to create, which avoids the disadvantages listed and especially about a very large one, all in the Operating conditions of the internal combustion engine that occur in practice comprehensive work area an optimal, i.e. complete or almost complete separation of oil guaranteed from the crankcase ventilation gases.

This task is solved by an oil separator of the type mentioned, characterized in that is that instead of a single cyclone, several smaller cyclones connected in parallel are provided.

With the oil separator according to the invention is compared essential to an oil separator with a single cyclone Enlargement of the optimal working area of the Oil separator reached. In particular, the oil separator shows a significantly improved separation performance with low Volume flows of the crankcase ventilation gases as well as greater insensitivity to fluctuations this volume flow. In this way, the invention Oil separator a significantly reduced dependency the separation performance and thus the efficiency of the current operating conditions the associated internal combustion engine achieves what the oil pollution of the intake air of the internal combustion engine is essential reduced and what the oil loss of the internal combustion engine reduced via the crankcase ventilation.

It is preferably further provided that the cyclones with a tangential flow are executed. This tangential Inflow enables a particular compact design compared to an axial Inflow keeps the height of the cyclones low.

Another embodiment of the invention provides that the bodies of the individual cyclones are parallel to each other Have central axes and a cyclone body component are united. Because every single cyclone only another fraction corresponding to the number of cyclones the crankcase ventilation gases must process, can each cyclone is correspondingly smaller, especially with a smaller one Diameter and, more importantly, with accordingly reduced height. Thereby the overall size of the oil separator is advantageous compact, although in comparison to a conventional Oil separator the diameter slightly larger can become, but the overall height is significantly smaller. This offers a significant relief in terms of accommodation the oil separator in an engine compartment, e.g. of a motor vehicle, where space is often limited be found.

It is also provided that the gas inlet of the individual cyclones leading inflow channels from one individual, splitting or dividing main inflow channel are formed. This will be an advantage achieved that only a single connecting line from Crankcase must be led to the oil separator in order the crankcase ventilation gases to the oil separator conduct. The division then follows only in the oil separator of the gas flow of the ventilation gases into the partial flows for the individual cyclones. This simplifies the installation of the Oil separator and keeps the number of connecting lines low even though multiple cyclones are used.

To ensure cost-effective production of the oil separator, are useful the main inflow channel and the individual inflow channels to form an inflow channel component united.

Another step to reduce the parts of the Oil separator is that the cyclone body component and the inflow channel component to a main component are united.

As mentioned above, the individual cyclones of the oil separator summarized as a bundle in a compact component be arranged; alternatively offers the execution of the oil separator with several individual cyclones the advantageous possibility that the individual cyclones decentrally in and / or on the internal combustion engine are arranged. So here the possibility is created the individual cyclones separately to accommodate such places in or on the internal combustion engine, where just room for a single cyclone is. This can often result in small dead spaces that previously could not be used makes sense each for a cyclone that is relatively small in itself is used.

In addition, the individual cyclones and / or the associated Inlets and outlets at least partially in one or several other components of the internal combustion engine be integrated. As a result, the effort for production and the installation of the individual parts of the oil separator and / or its feed and discharge lines reduced become. Also the installation space required for the individual parts of the oil separator and for its inlets and outlets can be reduced further.

For the integration of the individual cyclones and / or the associated supply and discharge lines or parts thereof are particularly suitable as components of the internal combustion engine their cylinder head cover or their air filter housing. The components mentioned offer on the one hand Open spaces or previous dead spaces in which the cyclones as well as other parts of the oil separator without additional space can be accommodated. In addition, these are Components anyway in the vicinity or along the flow paths, which the crankcase ventilation gas as well Put the oil and the cleaned gas out of it have to.

To produce the oil separator inexpensively and labor-saving To be able to, the individual parts are preferred Die-cast parts made of light metal and / or injection molded parts made of plastic.

An embodiment of the invention is explained below with reference to a drawing. The figures in the drawing show:

  • Figure 1 shows an oil separator in vertical section and
  • 2 shows the oil separator from FIG. 1 in a horizontal section along the line II-II in FIG. 1.
  • The two figures of the drawing show an embodiment for an oil separator 1, the four cyclones 11, 12, 13, 14 includes. Cyclones 11-14 are one one-piece compact main component 10 summarized.

    In the vertical section shown in Figure 1 through the Oil separator is the cyclone 11 in view and the cyclone 12 recognizable in vertical section, the associated Section line I - I angled according to Figure 2 runs. The cyclones 13 and 14 are in FIG. 1 not visible because they are in front of the cutting plane.

    A main inflow channel 20 can be seen at the top right in FIG. 1, its outer, i.e. right end as a transition piece 28 with a line connecting piece 29, which in Cross section is circular, is formed. From the right seen to the left, i.e. in the direction of flow crankcase ventilation gas to be conducted through the oil separator 1, the inflow channel 20 becomes flatter and what is not visible in Figure 1, at the same time wider, whereby whose cross-sectional area is essentially constant remains. The inflow channel 20 is divided into four individual Inflow channels or gas inlets 21 - 24, of which in Figure 1 only the channel or inlet 22 to the second cyclone 12 is visible. In this way the incoming gas flow distributed to the four cyclones 11-14, each a tangential flow occurs. Through this Tangential inflow turns the gas flow into a vortex flow offset, which ensures that entrained oil droplets on the inner surface of the cyclones 11 - knock down 14 and flow down from there. The Gas flow freed from the oil droplets emerges from everyone Cyclone 11 - 14 through an associated gas outlet 31 - 34 upwards and passes through a collecting hood 38 into a line connection piece 39. At this connection piece 39, a gas line can be connected, which leads to a Air intake tract of an associated internal combustion engine leads.

    The oil separated in the cyclones 11-14 flows inside of cyclones 11-14 down and occurs at their lower end through an oil outlet 41 - 44 into one Collection funnel 48. At the center of the collection funnel 48 is at its lowest point a pipe connection piece 49 provided to which an oil return line to an oil sump of the associated internal combustion engine can be connected.

    In the cross section shown in Figure 2 through the oil separator 1 is particularly the space-saving and compact Arrangement of the four cyclones 11-14 can be seen. All on the right the line connection piece 29 is visible one from the crankcase of the associated internal combustion engine incoming line can be connected, through which the crankcase coming loaded with oil droplets Crankcase ventilation gas to the oil separator 1 feasible is. Further to the left you can see that the Main inflow channel 20 in the area of the transition piece 28 widened and, as explained with reference to Figure 1, at the same time flattens. It divides even further to the left Main inflow channel 20 into four inflow channels or gas inlets 21-24, each one of the cyclones 11-14 assigned. Each inflow channel or Gas inlet 21-24 tangentially into its associated cyclone 11 - 14. For the two cyclones 11 and 12 is the Course so that there is a right-handed gas flow, while with cyclones 13 and 14 the gas flow is done by turning to the left. Inside each cyclone 11 - 14 the view falls through the corresponding one Gas outlet 31 - 34 on the bottom of the cyclone 11 - 14 arranged oil outlet 41 - 44. At the bottom is in the background in Figure 2 is still a small part of the Collecting funnel 48 recognizable for the separated oil.

    Figure 2 in particular shows that the incoming Gas flow without redirection and thus practically without increase the flow resistance to the four individual Cyclones 11-14 is distributed. Through this division the gas flow to several cyclones results in an improved Oil separation, especially for smaller ones Quantities of vent gases, at the same time lower Sensitivity to fluctuations in the volume flow of the crankcase ventilation gas.

    Like the embodiment of the oil separator 1 further shows, this can be made from a few individual parts, in the present Example from the main component 10, the transition piece 28, the combined gas outlets 31 - 34, the collecting hood 38 and the collecting funnel 48 manufacture. In addition there are associated connecting lines, which are advantageously carried out as hoses are, as is known per se. alternative can individual or all connecting lines, at least over sections, into other components of the internal combustion engine be integrated in what the manufacturing and assembly separate lines reduced or even completely unnecessary makes. The specified parts of the oil separator 1 are useful die-cast parts made of light metal or Injection molded plastic, one plastic too is to choose the thermal and chemical occurring Stress has grown.

    Claims (10)

    1. Oil separator (1) for deoiling of crankcase ventilation gases of a combustion engine, with the oil separator (1) comprising a cyclone that is provided with a gas inlet connected to the crankcase of the combustion engine, a gas outlet connected to the intake section of the combustion engine, and an oil outlet connected to an oil pan of the combustion engine,
      characterized in that
      in the stead of one single cyclone several smaller cyclones (11, 12, 13, 14), that are connected in parallel, are provided.
    2. Oil separator according to claim 1, characterized in that the cyclones (11-14) are designed with a tangential direction of inflow.
    3. Oil separator according to claim 1 or 2, characterized in that the bodies of the individual cyclones comprise central axes and are combined to form one cyclone body component, with the central axes running in parallel to each other.
    4. Oil separator according to one of the preceding claims, characterized in that the inflow ducts (21-24) that are running to the respective gas inlet of the individual cyclones (11-14) are formed by a single splitting or parting main inflow duct (20).
    5. Oil separator according to claim 4, characterized in that the main inflow duct (20) and the individual inflow ducts (21-24) are combined to form one inflow duct component.
    6. Oil separator according to one of claims 3 through 5, characterized in that the cyclone body component and the inflow duct component are combined to form one main component (10).
    7. Oil separator according to claim 1 or 2, characterized in that the individual cyclones (11-14) are positioned in a decentralized arrangement in and/or at the combustion engine.
    8. Oil separator according to claim 7, characterized in that the individual cyclones (11-14) are, at least in part, integrated in one or several other components of the combustion engine.
    9. Oil separator according to claim 8, characterized in that the other component of the combustion engine is represented by the latter's cylinder head cover or air filter body.
    10. Oil separator according to one of the preceding claims, characterized in that its component parts are die castings that are made of light metal and/or molded parts that are made of plastic.
    EP00916937.6A 1999-03-18 2000-03-14 Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine Active EP1080298B2 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    DE1999112271 DE19912271A1 (en) 1999-03-18 1999-03-18 Oil separator for deoiling of crankcase ventilation gases of an internal combustion engine
    DE19912271 1999-03-18
    PCT/EP2000/002230 WO2000057038A1 (en) 1999-03-18 2000-03-14 Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine

    Publications (3)

    Publication Number Publication Date
    EP1080298A1 EP1080298A1 (en) 2001-03-07
    EP1080298B1 true EP1080298B1 (en) 2003-07-30
    EP1080298B2 EP1080298B2 (en) 2018-08-29

    Family

    ID=7901552

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00916937.6A Active EP1080298B2 (en) 1999-03-18 2000-03-14 Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine

    Country Status (6)

    Country Link
    US (1) US6279556B1 (en)
    EP (1) EP1080298B2 (en)
    JP (1) JP2002540338A (en)
    BR (1) BR0005393A (en)
    DE (3) DE19912271A1 (en)
    WO (1) WO2000057038A1 (en)

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102005061256A1 (en) * 2005-12-20 2007-06-21 Kohlmann, Jürgen, Prof. Dr. Method and device for deoiling crankcase ventilation gases of an internal combustion engine
    DE202007003292U1 (en) 2007-03-02 2008-07-10 Hengst Gmbh & Co.Kg Oil separator with at least one cyclone
    DE102009040330A1 (en) 2009-09-07 2011-03-10 Fev Motorentechnik Gmbh Oil extractor for oil removal of ventilation gases from crankcase of internal combustion engine, has gas inlet, gas outlet, oil outlet and multiple cyclone filters which are connected between gas inlet and oil outlet
    US9795898B2 (en) 2015-03-31 2017-10-24 Jci Cyclonics Ltd. Cyclonic separator system

    Families Citing this family (63)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19918311A1 (en) * 1999-04-22 2000-11-02 Hengst Walter Gmbh & Co Kg A process for de-oiling crankcase ventilation gases and devices for carrying out the method
    DE29908116U1 (en) * 1999-05-06 2000-09-28 Hengst Walter Gmbh & Co Kg Oil separator for deoiling of crankcase ventilation gases of an internal combustion engine
    JP3967552B2 (en) * 2001-02-19 2007-08-29 本田技研工業株式会社 Gas-liquid separator for engines
    DE10127819A1 (en) * 2001-06-07 2003-01-02 Bosch Gmbh Robert Oil separator for crankcase gases of an internal combustion engine
    FR2835884B1 (en) * 2002-02-12 2005-03-18 Valeo Thermique Moteur Sa Method for controlling the gas temperature admitted in a motor vehicle engine, exchanger and device for managing the temperature of these gases
    DE10205981B4 (en) * 2002-02-14 2014-01-09 Mann + Hummel Gmbh Switchable cyclones for separating particles or drops from a fluid stream
    DE20211329U1 (en) * 2002-07-26 2003-12-04 Hengst Gmbh & Co.Kg Oil separator for separating oil from the crankcase ventilation gas of an internal combustion engine
    AT6652U1 (en) * 2002-10-17 2004-01-26 Avl List Gmbh Crankcase ventilation system of an internal combustion engine
    DE10251947A1 (en) 2002-11-08 2004-05-19 Robert Bosch Gmbh Device to separate fluid esp. oil from a gas flow in crankcase of IC engines has distribution valve controlling separator elements dependent upon flow volume
    DE20302220U1 (en) * 2003-02-11 2004-06-24 Hengst Gmbh & Co.Kg Oil separator for de-oiling internal combustion engine crankcase venting gases has oil separation insert in form of cyclone part for insertion into unaltered housing instead of mesh body
    DE10313192C5 (en) * 2003-03-25 2017-04-13 Volkswagen Ag Internal combustion engine and method for operating the same
    DE10325055A1 (en) * 2003-06-02 2004-12-23 Mann + Hummel Gmbh Device for switching cyclones
    DE102004006082A1 (en) 2004-02-06 2005-08-25 Polytec Automotive Gmbh & Co. Kg Device for removing oil from blowby gases from combustion engines comprises cyclones equipped with an automatic valve which covers gas outlet openings of an immersion pipe
    DE102004006834A1 (en) * 2004-02-12 2005-08-25 Mann + Hummel Gmbh separating
    KR100549990B1 (en) * 2004-04-16 2006-02-08 삼성광주전자 주식회사 Dust collecting apparatus for vacuum cleaner
    JP2006083809A (en) * 2004-09-17 2006-03-30 Yamaha Motor Co Ltd Oil tank for engine driven type vehicle
    US7473291B2 (en) * 2004-09-21 2009-01-06 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with variable flow actuator
    US7964009B2 (en) * 2004-09-21 2011-06-21 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with axially variable orifice area
    US7238216B2 (en) * 2004-09-21 2007-07-03 Cummins Filtration Ip, Inc. Variable flow inertial gas-liquid impactor separator
    US8075654B2 (en) * 2004-09-21 2011-12-13 Cummins Filtration Ip, Inc. Gas-liquid separator with expansion transition flow
    US7648543B2 (en) 2004-09-21 2010-01-19 Cummins Filtration Ip Inc. Multistage variable impactor
    US8048212B2 (en) * 2004-09-21 2011-11-01 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with valve and variable flow actuator
    US7896946B1 (en) 2004-09-21 2011-03-01 Cummins Filtration Ip, Inc. Multistage multicontroller variable impactor
    US7246612B2 (en) * 2004-10-08 2007-07-24 Toyota Technical Center Usa, Inc Oil separator
    KR100698294B1 (en) * 2004-11-25 2007-03-23 엘지전자 주식회사 Cyclone type oil separator
    US7406960B2 (en) * 2004-12-10 2008-08-05 Fleetguard, Inc. Oil mist removal device with oil fill
    US7475680B2 (en) * 2005-04-06 2009-01-13 Polaris Industries Inc. Integrated liquid-gas separator and reservoir
    US7140358B1 (en) 2005-05-06 2006-11-28 Toyota Technical Center Usa, Inc. Oil separator
    US7828869B1 (en) 2005-09-20 2010-11-09 Cummins Filtration Ip, Inc. Space-effective filter element
    DE112007000188A5 (en) * 2006-02-02 2009-01-15 Avl List Gmbh Crankcase ventilation system
    US7582130B2 (en) * 2006-04-14 2009-09-01 Cummins Filtration Ip Inc. Coalescing filter assembly
    US7678169B1 (en) * 2006-07-12 2010-03-16 Cummins Filtration Ip Inc. Oil fill cap with air/oil separator
    JP4626586B2 (en) * 2006-08-03 2011-02-09 トヨタ紡織株式会社 Gas-liquid separator
    US7594501B2 (en) * 2006-12-22 2009-09-29 Dichtungstechnik G. Bruss Gmbh & Co., Kg Cylinder head cover for an internal combustion engine
    US20080264018A1 (en) * 2007-04-26 2008-10-30 Herman Peter K Inertial gas-liquid separator with slot nozzle
    US7550035B1 (en) 2007-05-16 2009-06-23 Cummins Filtration Ip, Inc. Electrostatic precipitator with inertial gas-contaminant impactor separator
    US20080286403A1 (en) * 2007-05-16 2008-11-20 Husky Injection Molding Systems Ltd. Air Ring for a Stripper Assembly
    US7849841B2 (en) * 2007-07-26 2010-12-14 Cummins Filtration Ip, Inc. Crankcase ventilation system with engine driven pumped scavenged oil
    US7699029B2 (en) 2007-07-26 2010-04-20 Cummins Filtration Ip, Inc. Crankcase ventilation system with pumped scavenged oil
    US7614390B2 (en) * 2007-08-23 2009-11-10 Cummins Filtration Ip Inc. Two stage drainage gas-liquid separator
    DE102007049725A1 (en) * 2007-10-16 2009-04-23 Mann + Hummel Gmbh Oil separation device, in particular for crankcase ventilation in an internal combustion engine
    US7857883B2 (en) * 2007-10-17 2010-12-28 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with constrictable and expansible nozzle valve sidewall
    US7959714B2 (en) 2007-11-15 2011-06-14 Cummins Filtration Ip, Inc. Authorized filter servicing and replacement
    US7776139B2 (en) * 2008-02-06 2010-08-17 Cummins Filtration Ip, Inc. Separator with transfer tube drainage
    JP4510108B2 (en) 2008-03-13 2010-07-21 トヨタ自動車株式会社 Oil separator for blow-by gas
    US7828865B2 (en) 2008-07-31 2010-11-09 Cummins Filtration Ip, Inc. Gas-liquid separator with dual flow impaction and coalescence
    JP2010096107A (en) * 2008-10-17 2010-04-30 Kojima Press Industry Co Ltd Cyclone separator type oil separator device
    KR101028552B1 (en) * 2008-11-18 2011-04-11 기아자동차주식회사 Oil separation apparatus for blow-by gas
    US8082907B2 (en) * 2009-03-31 2011-12-27 Mann+Hummel Gmbh Air/oil separating PCV apparatus
    US8152884B1 (en) 2009-11-20 2012-04-10 Cummins Filtration Ip Inc. Inertial gas-liquid impactor separator with flow director
    DE102010036399B4 (en) 2010-07-14 2013-11-21 Woco Industrietechnik Gmbh Valve, separation system and method for the separation of particles
    US8591635B2 (en) 2011-12-19 2013-11-26 Chrysler Group Llc Fluid aeration-reduction system
    EP2626139B1 (en) * 2012-02-13 2014-12-17 Belenos Clean Power Holding AG Cyclone separator for gas liquid separation
    WO2014007164A1 (en) * 2012-07-04 2014-01-09 アイシン精機株式会社 Oil separator
    JP5676529B2 (en) * 2012-07-04 2015-02-25 アイシン精機株式会社 Oil separator
    JP2014013012A (en) * 2012-07-04 2014-01-23 Aisin Seiki Co Ltd Oil separator
    JP5846059B2 (en) * 2012-07-05 2016-01-20 トヨタ自動車株式会社 Engine oil separator
    US9138671B2 (en) 2012-08-30 2015-09-22 Cummins Filtration Ip, Inc. Inertial gas-liquid separator and porous collection substrate for use in inertial gas-liquid separator
    JP5495402B2 (en) * 2012-11-22 2014-05-21 アイシン精機株式会社 Oil separator
    US9528407B2 (en) * 2013-12-12 2016-12-27 Toyota Motor Engineering & Manufacturing North America, Inc. High efficiency cyclone oil separator device
    JP2015137631A (en) * 2014-01-24 2015-07-30 アイシン精機株式会社 Oil separator for blow-by gas
    JP2016113999A (en) * 2014-12-17 2016-06-23 アイシン精機株式会社 Oil mist separator
    US10286347B2 (en) 2015-09-15 2019-05-14 Miniature Precision Components, Inc. Oil separator including spiral members defining helical flow paths

    Family Cites Families (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2378632A (en) * 1942-07-27 1945-06-19 Hooker Jr Apparatus for separating solids from liquids
    DE6602410U (en) * 1968-09-16 1969-05-29 Universal Oil Prod Co A device for separating suspended particles from gases.
    DE3634122C2 (en) * 1986-10-07 1991-05-02 Hansjoerg Dr. 6990 Bad Mergentheim De Brombach
    DE3909402A1 (en) * 1989-03-22 1990-09-27 Schumacher Gmbh & Co Kg Filter for gaseous media
    US5239972A (en) * 1992-03-24 1993-08-31 Nippon Soken, Inc. Gas/liquid separation device
    DE4214324C2 (en) * 1992-04-30 1998-04-30 Knecht Filterwerke Gmbh An apparatus for separating oil aerosols containing
    DE4344506C2 (en) * 1993-12-24 1998-04-16 Knecht Filterwerke Gmbh Cyclone for separating oil
    DE4429822C2 (en) * 1994-08-23 1998-02-19 Mann & Hummel Filter Apparatus for separating oil aerosol from air
    JPH08296422A (en) * 1995-04-26 1996-11-12 Tokai Rubber Ind Ltd Oil mist recovery device
    JP3049269B2 (en) * 1995-05-26 2000-06-05 小島プレス工業株式会社 Oil trapper for an internal combustion engine
    GB9526349D0 (en) * 1995-12-22 1996-02-21 Rover Group Separation of oil fromair breather gases
    DE19704594A1 (en) * 1997-02-07 1998-08-13 Knecht Filterwerke Gmbh Lubricating oil filler line of an internal combustion engine with oil mist separator
    JPH10220215A (en) * 1997-02-12 1998-08-18 Kubota Corp Breather device for engine

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102005061256A1 (en) * 2005-12-20 2007-06-21 Kohlmann, Jürgen, Prof. Dr. Method and device for deoiling crankcase ventilation gases of an internal combustion engine
    DE202007003292U1 (en) 2007-03-02 2008-07-10 Hengst Gmbh & Co.Kg Oil separator with at least one cyclone
    DE102009040330A1 (en) 2009-09-07 2011-03-10 Fev Motorentechnik Gmbh Oil extractor for oil removal of ventilation gases from crankcase of internal combustion engine, has gas inlet, gas outlet, oil outlet and multiple cyclone filters which are connected between gas inlet and oil outlet
    US9795898B2 (en) 2015-03-31 2017-10-24 Jci Cyclonics Ltd. Cyclonic separator system

    Also Published As

    Publication number Publication date
    BR0005393A (en) 2001-01-30
    DE20023968U1 (en) 2008-03-06
    DE20023969U1 (en) 2008-03-06
    DE19912271A1 (en) 2000-09-28
    US6279556B1 (en) 2001-08-28
    EP1080298A1 (en) 2001-03-07
    JP2002540338A (en) 2002-11-26
    EP1080298B2 (en) 2018-08-29
    WO2000057038A1 (en) 2000-09-28

    Similar Documents

    Publication Publication Date Title
    US5438965A (en) Machines powered by internal combustion engines
    US7159723B2 (en) Cyclone separator
    US8485164B2 (en) Oil mist separator
    US8607767B2 (en) Device for ventilating a crankcase
    US20070240391A1 (en) Multi-stage apparatus for separating liquid droplets from gases
    US4958613A (en) Internal combustion engine with crankcase ventilation system
    US6942709B2 (en) Switchable cyclone for separating particles or droplets from a fluid stream
    US6263847B1 (en) Breather assembly for an internal combustion engine
    US7422612B2 (en) Oil separator for the separation of oil from the crankcase ventilation gas of an internal combustion engine
    EP1090210B2 (en) Method for removing oil from crankcase ventilation gases and devices for implementing said method
    US20030178014A1 (en) Ventilation device for a crankcase
    US7080636B2 (en) Oil separating device for a combustion engine
    RU2317765C1 (en) Cyclone apparatus for separation of contaminants and vacuum cleaner provided with the same apparatus
    US5954035A (en) Venting arrangement for a crankcase of an internal combustion engine
    ES2211541T3 (en) Oil separator for the degreasing of ventilation gases from the carter of an internal combustion engine.
    DE10338807B4 (en) Ventilation device for internal combustion engines
    KR20020092111A (en) Grille assembly for a cyclone-type dust collecting apparatus for a vacuum cleaner
    US6258144B1 (en) Air filtering device for a vehicle engine including interengaged filter members and a flow regulation member
    US7655078B2 (en) Bubble separator
    US6591820B2 (en) Air-oil separating apparatus for engine
    US7059311B2 (en) Air/oil separating device
    CN103212254B (en) Air cleaner assembly
    EP1621243B1 (en) Water separator for air conditioning systems
    JP2003502549A (en) Filter assembly having a sump and a check valve
    WO2001000969A1 (en) Oil separator for small particles

    Legal Events

    Date Code Title Description
    17P Request for examination filed

    Effective date: 20001123

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    RAP1 Rights of an application transferred

    Owner name: HENGST GMBH & CO. KG

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    AK Designated contracting states

    Designated state(s): DE FR GB IT SE

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    Free format text: GERMAN

    REF Corresponds to:

    Ref document number: 50003081

    Country of ref document: DE

    Date of ref document: 20030904

    Kind code of ref document: P

    REG Reference to a national code

    Ref country code: SE

    Ref legal event code: TRGR

    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20040108

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FD4D

    ET Fr: translation filed
    26 Opposition filed

    Opponent name: MANN + HUMMEL GMBH

    Effective date: 20040327

    26 Opposition filed

    Opponent name: POLYTEC AUTOMOTIVE GMBH & CO. KG

    Effective date: 20040424

    Opponent name: MANN + HUMMEL GMBH

    Effective date: 20040327

    26 Opposition filed

    Opponent name: MAHLE FILTERSYSTEME GMBH ROTERMUND + PFUSCH + BERN

    Effective date: 20040429

    Opponent name: MANN + HUMMEL GMBH

    Effective date: 20040327

    Opponent name: POLYTEC AUTOMOTIVE GMBH & CO. KG

    Effective date: 20040424

    R26 Opposition filed (corrected)

    Opponent name: POLYTEC AUTOMOTIVE GMBH & CO. KG

    Effective date: 20040424

    Opponent name: MAHLE FILTERSYSTEME GMBH

    Effective date: 20040429

    Opponent name: MANN + HUMMEL GMBH

    Effective date: 20040327

    RAP2 Rights of a patent transferred

    Owner name: HENGST SE & CO. KG

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 17

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 18

    RIC2 Information provided on ipc code assigned after grant

    Ipc: F01M 13/04 20060101ALI20171013BHEP

    Ipc: F01M 13/00 20060101AFI20171013BHEP

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R082

    Ref document number: 50003081

    Country of ref document: DE

    Representative=s name: SCHULZE HORN & PARTNER GBR, DE

    Ref country code: DE

    Ref legal event code: R081

    Ref document number: 50003081

    Country of ref document: DE

    Owner name: HENGST SE & CO. KG, DE

    Free format text: FORMER OWNER: HENGST GMBH & CO. KG, 48147 MUENSTER, DE

    Ref country code: DE

    Ref legal event code: R081

    Ref document number: 50003081

    Country of ref document: DE

    Owner name: HENGST SE, DE

    Free format text: FORMER OWNER: HENGST GMBH & CO. KG, 48147 MUENSTER, DE

    Ref country code: DE

    Ref legal event code: R082

    Ref document number: 50003081

    Country of ref document: DE

    Representative=s name: SCHULZE HORN & PARTNER GBR PATENT- UND RECHTSA, DE

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R081

    Ref document number: 50003081

    Country of ref document: DE

    Owner name: HENGST SE, DE

    Free format text: FORMER OWNER: HENGST SE & CO. KG, 48147 MUENSTER, DE

    Ref country code: DE

    Ref legal event code: R082

    Ref document number: 50003081

    Country of ref document: DE

    Representative=s name: SCHULZE HORN & PARTNER GBR, DE

    Ref country code: DE

    Ref legal event code: R082

    Ref document number: 50003081

    Country of ref document: DE

    Representative=s name: SCHULZE HORN & PARTNER GBR PATENT- UND RECHTSA, DE

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 19

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

    Ref country code: SE

    Payment date: 20180313

    Year of fee payment: 19

    27A Patent maintained in amended form

    Effective date: 20180829

    AK Designated contracting states

    Kind code of ref document: B2

    Designated state(s): DE FR GB IT SE

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R102

    Ref document number: 50003081

    Country of ref document: DE

    REG Reference to a national code

    Ref country code: SE

    Ref legal event code: NAV

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

    Ref country code: DE

    Payment date: 20190328

    Year of fee payment: 20

    Ref country code: GB

    Payment date: 20190325

    Year of fee payment: 20

    Ref country code: FR

    Payment date: 20190326

    Year of fee payment: 20

    Ref country code: IT

    Payment date: 20190321

    Year of fee payment: 20