EP3192987A1 - Dispositif de separation d'huile pour le degazage de carter de vilebrequin d'un moteur a combustion - Google Patents

Dispositif de separation d'huile pour le degazage de carter de vilebrequin d'un moteur a combustion Download PDF

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Publication number
EP3192987A1
EP3192987A1 EP16168010.3A EP16168010A EP3192987A1 EP 3192987 A1 EP3192987 A1 EP 3192987A1 EP 16168010 A EP16168010 A EP 16168010A EP 3192987 A1 EP3192987 A1 EP 3192987A1
Authority
EP
European Patent Office
Prior art keywords
gap
oil separation
separation device
separator
gas inlet
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.)
Withdrawn
Application number
EP16168010.3A
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German (de)
English (en)
Inventor
Artur Knaus
Manfred Brand
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.)
Bruss Sealing Systems GmbH
Original Assignee
Bruss Sealing Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bruss Sealing Systems GmbH filed Critical Bruss Sealing Systems GmbH
Publication of EP3192987A1 publication Critical patent/EP3192987A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F01M2013/0038—Layout of crankcase breathing systems
    • F01M2013/005—Layout of crankcase breathing systems having one or more deoilers
    • F01M2013/0061—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers
    • F01M2013/0066—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers in parallel
    • 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
    • F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen

Definitions

  • the present invention relates to an oil separation apparatus for crankcase ventilation of an internal combustion engine, comprising at least one gap separator having a gas inlet pipe, a gap defining member which covers an outlet end of the gas inlet pipe in the flow direction, releasing or releasing a side gap, and downstream therefrom forming a baffle deposition chamber.
  • the object of the invention is to develop an oil separation device with a gap separator with a view to a higher efficiency.
  • the separation chamber is formed by a separator tube which is open on both sides and which is arranged on the outside at a radial distance and with an axial overlap above the gas inlet tube.
  • the blow-by gas can pass through the gap-defining element
  • the released gap in a central region flow into the separator and escape from both sides of this.
  • the gas can thus flow off better and builds up a lower dynamic pressure, whereby a higher efficiency is achieved, especially at high gas flow rates.
  • the invention relates to embodiments in which the gap-determining element is a spring tongue clamped on one side, the free end of which covers the outlet end of the gas inlet tube.
  • the dynamic pressure in the area of impact decreases, i. on the inner wall of the separator, whereby an increased efficiency of the separator can be achieved.
  • a breakthrough for the passage of the spring tongue is formed in the Abscheiderohr, the breakthrough opens into a dead volume, which causes an oil separation in the manner of a Virtualimp risk.
  • the oil particles are not impacted in the region of the opening on the inner wall of the Abscheiderohrs, but thrown into the dead volume, where they can settle due to lack of air movement.
  • the gap-defining element is a movable against the force of a spring rigid plate.
  • the term plate is not meant to be limiting as to the shape, but may generally be an arbitrarily shaped rigid body, such as a cylinder, adapted to cover the outlet end of the gas inlet tube at rest.
  • the term slit separator comprises separators having a slit-defining element which forms a variable gap as a function of the volume flow of blow-by gas, and may therefore also be referred to as a variable slit separator.
  • This also includes separators, in which the gap-determining element is a controlled in dependence on a vacuum supply element.
  • the gap-defining element may also form a gap of constant gap width and in particular be a housing-fixed element.
  • These separators can also be referred to as constant gap separators.
  • a gap separator in the sense of the invention can also be referred to as a gap impactor.
  • a Hubbegrenzungselement is provided for the gap-determining element.
  • the gap-defining element releases too large a gap cross section as a result of pressure pulsations and the resulting evasion or oscillation.
  • the Hubbegrenzungselement thus enables high gas flow rates without malfunction of the Spaltabscheiders even with pressure pulsations.
  • the oil separation device may be integrated in a cylinder head cover or in an oil separation module.
  • the ⁇ labscheidemodul can be provided for example for sealed insertion into a cylinder head cover or as an independent component.
  • the schematically illustrated ⁇ labborgevoriques 10 according to the Fig. 1 and Fig. 2 comprises at least one Federzonneabscheider 20 with an inlet-side member 11 or support member which forms a gas inlet tube 12 for blow-by gas 13 from the crankcase ventilation of an internal combustion engine, and a separator tube 14.
  • a spring tongue 15 is fixed to a mounting end 16 in the oil separation device 10 in that the free end section 17 covers the outlet end 18 of the gas inlet tube 12 in the rest position.
  • the free end portion 17 of the spring tongue 15 in the rest position on the outlet end 18 of the gas inlet tube 12 may be in contact or arranged with a small distance thereto.
  • the shape of the free end portion 17 may correspond to the shape of the outlet end 18 of the gas inlet tube 12, and in particular circular (see Fig. 2 ), elliptical or oval shaped.
  • the free end portion 17 of the spring tongue 15 is connected to the attachment portion 16 via a connecting portion 42.
  • the inlet-side component 11 consists for example of a plastic, in particular a reinforced or unreinforced thermoplastic.
  • the oil separation device 10 may be integrated with a cylinder head cover or oil separation module having a corresponding housing 62 which may be used, for example, in FIG Fig. 12 is indicated schematically.
  • the spring tongue 15 is associated with the Federzonneabscheider 20 and arranged substantially transversely in the separator tube 14 and the deposition chamber 19 formed therein, and opens in relation to the Abscheidehunt 19 inwardly.
  • the spring tongue 15 is at one end in a clamping device 21 (see Fig. 3 ) clamped freely.
  • the flat side of the free end 17 of the spring tongue 15 is acted upon by the oil-loaded blow-by gas 13. Due to the pressurization, the spring tongue 15 releases a lateral gap 22 between the spring tongue 15 and the air inlet tube 12, through which the blow-by gas flows at high speed into the downstream separation chamber 19.
  • the greater the gas pressure is applied to the spring tongue 15, the greater in the usual working range of the released by the spring tongue 15 gap 22 for the blow-by gas.
  • a baffle 23 is provided, which is formed by the inner wall of the separator tube 14. More specifically, an axially central region 33 of the separator tube 14 forming the baffle 23 is preferably cylindrical so that the gas flow exiting through the gap 22 is approximately perpendicular to the baffle 23.
  • the baffle 23 advantageously has a predominantly vertical component with respect to the spring tongue 15 in the rest position and is preferably oriented approximately perpendicular to the spring tongue 15 in the rest position, see Fig. 1 , Approximately perpendicular means at an angle in the range of 70 ° to 110 °, preferably in the range of 80 ° to 100 °.
  • the gas stream entering the separation chamber 19 through the gap 22 thus runs approximately perpendicular to the impact wall 23 and is deflected sharply along the impact wall 23. Due to the inertia of the oil and dirt particles in the blow-by gas they are deposited on the baffle 23.
  • the oil deposited on the baffle 23 is returned by gravity into the engine oil circuit by means of an oil return 24 provided in the inlet-side component 11 or in another component of the oil-separating device 10.
  • the distance of the gap exit 22 to the impact surface 23 is substantially constant.
  • the gas inlet is advantageously rounded, as in Fig. 3 to see what is achieved by a radius 60 on the nozzle 12 and corresponding geometry on the spring tongue 15.
  • the inner diameter Di and inner cross section, here ⁇ ⁇ Di / 2, of the separator tube 14 is larger by the amount s than the outer diameter Da or the outer cross section, here ⁇ ⁇ Da / 2, of the gas inlet tube 12.
  • the separator tube 14 is advantageously concentric with the Gas inlet pipe 12 and, as out Fig. 1 can be seen, arranged with axial overlap u outside on the gas inlet tube 12. Furthermore, the separator tube 14 is advantageously arranged at a distance d from the inlet-side component 11.
  • the inner cross section of the separator tube 14 can advantageously increase in both directions, see for example Fig. 3 and Fig. 14 , This has the effect of a diffuser in which the flow rate of the gas is reduced, thereby reducing the likelihood that the effluent will recirculate due to the outflow of gas being carried away. At the same time, the pressure loss via the separator 20 is reduced.
  • the separator tube 24 which is open on both sides, and the arrangement with radial spacing s and with axial overlap u above the gas inlet tube 12, it is possible for the gas flow deflected on both sides of the gas flow deflected on the baffle wall 23 to be bilateral.
  • the gas flow deflected on the baffle 23 flows on the one hand in the same flow direction as through the gas inlet tube 12 through the corresponding gas outlet opening 25 of the separating tube 14 and on the other hand in the opposite direction through the radial gap s between the separating tube 14 and the gas inlet tube 12 and through the opposite gas outlet opening 26 from.
  • both end openings 25, 26 of the separating tube 24 are functionally gas outlet openings; the gas inlet takes place inside the separator tube 24 through the gas inlet tube 12.
  • an opening 43 for the passage of the spring tongue 15 is formed, see Fig. 11 ,
  • the opening 43 opens into a dead volume 44, see Fig. 2 and Fig. 3 , which causes an oil separation in the manner of a virtualimpact.
  • the inlet-side component 11 is substantially plate-shaped here with passage openings 27 which form the inlet openings of the gas inlet tubes 12.
  • the gas inlet tube 12 is preferably funnel-shaped (inlet funnel 63), wherein the frusto-conical inner wall 61 of the gas inlet tube 12 tapers in the flow direction.
  • the gas inlet pipes 12 are formed integrally with and out of the inlet side member 11.
  • the gas inlet tubes 12 advantageously extend on the outlet side 28 of the component 11, while the inlet side 29 of the component 11 (see Fig.
  • the gas inlet pipes 12 are arranged in two rings 31 of preferably at least four, here for example eight gas inlet pipes 12, each around a central base 30. Of course, only one ring 31 of at least four, for example, eight gas inlet pipes 12, or more than two such rings 31 may be provided. Between each gas inlet tube 12 and the central base 30, a web 32 is advantageously provided which is formed integrally with and out of the inlet-side component 11. The aforementioned dead volume 44 is formed between each spring tongue 15 and the corresponding web 32.
  • the here eight spring tongues 15 of a ring 31 of gas inlet tubes 12 are advantageously formed by a one-piece, star-shaped spring tongue portion 34, see Fig. 6 .
  • the spring tongue part 34 consists of spring steel, in particular in the form of a spring plate.
  • the spring tongue part 34 advantageously has a middle part 48 (see FIG Fig. 6 ) with a central bore 35 which corresponds to a central pin 36 on the base 30, so that the pin 36 engages in the assembled state through the central bore 35.
  • the middle part 48 thus simultaneously forms the attachment portion 16 which is radially therefrom outwardly extending spring tongues 15.
  • On the base 30 further preferably a star-shaped anti-rotation device 37 is provided, for example, which cooperates positively with the correspondingly shaped bore 35 to hold the spring tongue portion 34 against rotation on the base 30.
  • the here eight separator tubes 14 corresponding to a ring 31 of gas inlet tubes 12 are advantageously formed by a one-piece Abscheiderteil 38, see Fig. 11 .
  • the separator part 38 consists for example of a plastic, in particular a reinforced or unreinforced thermoplastic, and may consist of the same plastic as the inlet-side member 11.
  • the separator part 38 advantageously has a central center part 49 with a bore 39 which is connected to the pin 36 in the central base 30 corresponds, so that the pin 36 engages in the mounted state through the central bore 39.
  • the separator part 38 preferably has a central, in this case star-shaped recess 40, for example, which cooperates in a form-locking manner with the anti-twist device 37 of the base 30 in order to hold the separator part 38 against rotation on the base 30.
  • a recess 50 can be provided for each spring tongue 15, see Fig. 11 ,
  • the spring tongue part 34 is pushed with the central opening 35 via the pin 36 of the inlet-side member 11 and brought into engagement with the anti-rotation device 37.
  • the separator part 38 is pushed with the central opening 39 via the pin 36 of the inlet-side member 11 and brought into engagement with the anti-rotation device 37.
  • the separator part 38 is attached to the inlet side member 11. This may preferably be by hot forming, such as riveting, or Welding of the upper end of the pin 36 done on the Abscheiderteil 38. Other fasteners, such as a screw or clip attachment between the Abscheiderteil 38 and the inlet side member 11 are possible.
  • a clamping region 45 (see FIG Fig. 10 ) is provided between the separator part 38 and the inlet side member 11.
  • Clamping means for generating the clamping may be, for example, from the peripheral edge 46 of the base 30 and correspondingly arranged clamping regions 47 (see Fig. 11 ) are formed on the separation part 38.
  • the Hubbegrenzungselement 51 is formed by an outer edge of the central part 49 in the region of the opening 43 and the recess 50.
  • the Hubbegrenzungselement 51 A is disposed in the Abscheiderohr 14 in the region of the free end of the spring tongue 15. This arrangement may be preferred in order to avoid a plastic deformation of the spring tongue 15.
  • a certain pressure threshold of the blow-by gas is exceeded, the spring tongue 15 strikes against the stroke limiting element 51 or 51A, which thus limits the stroke of the spring tongue 15 and the opening gap 22 to a specific value.
  • the Hubbegrenzungsetti 51 different Federzonneabscheider 20 can be set differently and / or formed to produce an exponentially increasing pressure loss from a certain blow-by volume flow; Alternatively, to produce a degressive increasing pressure drop, with the aim of overpressure limitation in case of malfunction.
  • the spring stiffnesses of the spring tongues 15 of a plurality of spring tongue separators 20 connected in parallel can advantageously be set differently.
  • different stroke limits 51, 53 of a plurality of Federzonneabscheidern 20 may be connected in parallel and / or the spring stiffnesses of the individual spring tongues 15 may be different in order to shape the pressure loss curve as desired.
  • a control element 52 is provided for controlled and / or regulated adjustment of only schematically shown, movable Hubbegrenzungs instituten 53 in response to a vacuum supply. More specifically, the control element 52 is here a pressure control valve with a movable diaphragm 54 and a control member 55 which is slidably mounted against the force of a spring 56 and connected on the one hand in the center of the diaphragm 54 with this, and on the other hand with the Hubbegrenzungs instituten 53.
  • the membrane with the clean room 59 and the Gasauslassseite the Federzungenabscheider 20 applied (sub) pressure is applied, on the other side with atmospheric pressure, for example, through a bore 57 in a housing cover 58 in the pressure control valve 52nd is guided.
  • the control element 55 of the diaphragm 54 against the force of the spring 56 in Fig. 12 pulled down whereby the Hubbegrenzungselement 53 is moved in the same direction and limits the stroke for the spring tongues 15 more.
  • At low negative pressure in the clean room 59 however, by raising the Hubbegrenzungselements 53 a larger gap 22 in the Federzonneabscheider 20 allows so that the pressure losses remain low and the pressure in the crankcase remains negative.
  • the Hubbegrenzungsetti 53 different parallel connected Federzacheabscheider 20 may be set differently, as in Fig. 12 is indicated.
  • the gap-determining element 15 is a rigid plate 64, for example in the form of a circular disk.
  • the plate 54 is in the embodiment according to Fig. 14 against the force of a spring 65, such as a coil spring, as a whole slidable.
  • the spring 65 is supported, for example, against a housing part 62 and is guided by a guide element 66, which can also serve as a stroke-limiting element 51 for the gap-determining element 15.
  • a rounded air guide element 69 is advantageously provided on the plate 64, wherein the end region 18 of the air inlet tube 12 is preferably rounded in a correspondingly rounded manner, as in FIG Fig. 14 shown.
  • the operation of the Spaltabscheiders 67 is the same as that of the Federzonneabscheiders 20 in the FIG. 2 to FIG. 12
  • the flat side of the plate 64 is charged with the oil-loaded blow-by gas 13. Due to the pressurization, the plate 64 releases a gap 22 against the force of the spring 65, through which the blow-by gas flows at high speed into the downstream separation chamber 19.
  • the separator tube 14 is fastened to the plate 64 by means of connecting elements 68, for example connecting webs, so that the separator tube 14 is displaceable together with the plate 64 as a function of the blow-by gas pressure as a whole.
  • the separator tube 14 is not connected to the plate 64.
  • the separator tube 14 may alternatively be provided by a housing-fixed separator part 38 as in FIG Fig. 3 be formed.
  • the oil separator 10 may include a plurality of split separators 67 connected in parallel.
  • the advantageous features that were previously described with respect to a plurality of parallel in parallel Federzonneabscheidern 20 apply mutatis mutandis accordingly;
  • the advantageous different setting or design of the stroke-limiting elements 66 and / or the coil springs 65 in a plurality of Spaltabscheidern 67 are possible, ie the oil separation 10 may have one or more Federzonneabscheider 20 and parallel to one or more Spaltabscheider 67 ,
  • Fig. 15 equals that of Fig. 12 applied to a gap separator 67.
  • Fig. 16 shows a gap separator 67 with a constant gap 22, wherein the rigid gap-determining element 64 is connected via a holding part 70 fixed to the housing 62 and arranged at an axial distance from the inlet tube 12 and thus leaves the lateral gap 22.
  • Fig. 17 shows a gap separator 67 with a variable gap 22, wherein the rigid gap-determining element 64 is connected via a holding part 70 with a control element 52, which analogous to the Fig. 12 and Fig. 15 is executed.
  • the gap-determining element 64 and thus the variable gap 22 is regulated in response to a vacuum supply.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP16168010.3A 2016-01-12 2016-05-03 Dispositif de separation d'huile pour le degazage de carter de vilebrequin d'un moteur a combustion Withdrawn EP3192987A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016100419.7A DE102016100419B4 (de) 2016-01-12 2016-01-12 Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors

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EP3192987A1 true EP3192987A1 (fr) 2017-07-19

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EP16168010.3A Withdrawn EP3192987A1 (fr) 2016-01-12 2016-05-03 Dispositif de separation d'huile pour le degazage de carter de vilebrequin d'un moteur a combustion

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EP (1) EP3192987A1 (fr)
DE (1) DE102016100419B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018211760A1 (de) 2018-07-13 2020-01-16 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors
CN111927594A (zh) * 2020-08-18 2020-11-13 浙江吉利新能源商用车集团有限公司 一种用于车辆的油气分离总成及车辆
DE102019217901A1 (de) * 2019-11-20 2021-05-20 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung
DE102021200448A1 (de) 2021-01-19 2022-07-21 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors

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DE102019214581B4 (de) * 2019-09-24 2022-06-30 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für eine Brennkraftmaschine

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WO2016119938A1 (fr) * 2015-01-28 2016-08-04 Thyssenkrupp Presta Teccenter Ag Dispositif de séparation d'huile commandable

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DE202007014378U1 (de) * 2007-10-12 2009-02-26 Hengst Gmbh & Co.Kg Ölnebelabscheider einer Brennkraftmaschine
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EP1285152B1 (fr) 2000-05-30 2004-02-25 Hengst GmbH & Co. KG Dispositif pour deshuiler des gaz evacues du carter de vilebrequin d'un moteur a combustion interne
DE10051307B4 (de) 2000-10-17 2008-07-31 Robert Bosch Gmbh Vorrichtung zur Trennung von Gas und Flüssigkeit-Festkörperpartikeln aus einem in einer Leitung strömenden Gas-Flüssigkeit-Festkörperpartikelgemisch und Verfahren zur Trennung derselben
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US20090193770A1 (en) * 2004-09-21 2009-08-06 Cummins Filtration Ip, Inc. Gas-Liquid Separator with Expansion Transition Flow
DE102007062098A1 (de) * 2007-12-21 2009-06-25 Mahle International Gmbh Ölnebelabscheider
DE112010001367T5 (de) * 2009-03-24 2012-05-24 Cummins Filtration Ip, Inc. Gas-Flüssigkeits-Trägheitsabscheider mit axial veränderlicher Ausflussöffnungsfläche
US8152884B1 (en) * 2009-11-20 2012-04-10 Cummins Filtration Ip Inc. Inertial gas-liquid impactor separator with flow director
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WO2015093327A1 (fr) * 2013-12-20 2015-06-25 株式会社ニフコ Séparateur d'huile
WO2016015976A1 (fr) * 2014-07-30 2016-02-04 Polytec Plastics Germany Gmbh & Co. Kg Impacteur à cascade
WO2016119938A1 (fr) * 2015-01-28 2016-08-04 Thyssenkrupp Presta Teccenter Ag Dispositif de séparation d'huile commandable

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018211760A1 (de) 2018-07-13 2020-01-16 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors
US10830112B2 (en) 2018-07-13 2020-11-10 BRUSS Sealing Systems GmbH Oil separation device for the crankcase ventilation of an internal combustion engine
DE102018211760B4 (de) * 2018-07-13 2021-03-18 BRUSS Sealing Systems GmbH System zur Kurbelgehäuseentlüftung eines Verbrennungsmotors
DE102019217901A1 (de) * 2019-11-20 2021-05-20 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung
DE102019217901B4 (de) 2019-11-20 2022-03-31 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung
US11306633B2 (en) 2019-11-20 2022-04-19 BRUSS Sealing Systems GmbH Oil separating device
CN111927594A (zh) * 2020-08-18 2020-11-13 浙江吉利新能源商用车集团有限公司 一种用于车辆的油气分离总成及车辆
DE102021200448A1 (de) 2021-01-19 2022-07-21 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors
DE102021200448B4 (de) 2021-01-19 2022-10-06 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors
US11692468B2 (en) 2021-01-19 2023-07-04 BRUSS Sealing Systems GmbH Oil separating device for the crankcase ventilation of an internal combustion engine

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