EP1905971A2 - Vorrichtung zur Trennung bestimmter Stoffe, die von einem Verbrennungsmotor produziert werden - Google Patents

Vorrichtung zur Trennung bestimmter Stoffe, die von einem Verbrennungsmotor produziert werden Download PDF

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Publication number
EP1905971A2
EP1905971A2 EP07117341A EP07117341A EP1905971A2 EP 1905971 A2 EP1905971 A2 EP 1905971A2 EP 07117341 A EP07117341 A EP 07117341A EP 07117341 A EP07117341 A EP 07117341A EP 1905971 A2 EP1905971 A2 EP 1905971A2
Authority
EP
European Patent Office
Prior art keywords
flexible membrane
flange
separating element
housing
outlet
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
EP07117341A
Other languages
English (en)
French (fr)
Other versions
EP1905971A3 (de
EP1905971B1 (de
Inventor
Samuel Bonne
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.)
Sogefi Filtration SA
Original Assignee
Filtrauto SA
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 Filtrauto SA filed Critical Filtrauto SA
Publication of EP1905971A2 publication Critical patent/EP1905971A2/de
Publication of EP1905971A3 publication Critical patent/EP1905971A3/de
Application granted granted Critical
Publication of EP1905971B1 publication Critical patent/EP1905971B1/de
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • 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

Definitions

  • the present invention relates to a device for separating certain materials produced by an internal combustion engine.
  • This type of separation device is more particularly, but not exclusively, arranged between the crankcase (at the crankcase or the rocker cover) and the air intake of the internal combustion engine, that is to say that the inlet of the separating device is directly connected to the engine casing while the output of the device is directly connected to the air intake of the internal combustion engine.
  • filter medium is meant a media having a filtering function for the solid particles and / or a coalescent function for the liquid particles.
  • certain materials materials produced by the internal combustion engine and which are present inside the crankcase these materials produced by the internal combustion engine consist in particular, on the one hand, of a liquid part such as an aerosol whose distribution in number of droplets is centered, for example, around 0.6 microns and an oil film deposited on the walls of the housing, and on the other hand, a gaseous part such as fuel vapors, water or oil, and finally a solid part such as soot suspended in the gas or in the liquid contained in the housing.
  • a liquid part such as an aerosol whose distribution in number of droplets is centered, for example, around 0.6 microns and an oil film deposited on the walls of the housing
  • a gaseous part such as fuel vapors, water or oil
  • a solid part such as soot suspended in the gas or in the liquid contained in the housing.
  • crankcase gas recirculation circuit or blow-by gas by the skilled person.
  • the intake of air by the engine can create a vacuum in the intake line and thus via the crankcase recirculation circuit, this vacuum is applied in part to the inside of the crankcase.
  • This depression is a function of the operating conditions of the engine, that is to say the engine speed and its load, this depression then promoting the evacuation of gases or materials produced in the housing ensuring the integrity of the seals between the engine block and the crankcase.
  • the flexible membrane disposed inside the housing of the separation device forms a shutter valve which then acts to limit the vacuum in the housing by completely closing the gas circuit in case of excessive depression.
  • the dimensions of the assembly formed by the housing and the cover and in particular the height of the assembly can be relatively large and the number of constituent components the whole can be equally important.
  • the present invention aims to overcome the disadvantages mentioned above.
  • the subject of the invention is a device for separating certain materials produced by an internal combustion engine, characterized in that the flexible membrane has an external edge which is wedged directly in a sealed manner between the first flange of the separation element and an element of the separation device, so as to position this membrane closer to the first flange.
  • the flexible membrane or, more exactly, its outer peripheral edge is directly sealingly stuck via at least the first flange of the separating element, which has dimensions that are always smaller than those of the casing so that the assembly shutter valve comprising the flexible membrane requires fewer components and a smaller footprint than the known provisions of the prior art and this with a lower manufacturing cost.
  • This arrangement significantly reduces the external height of the assembly formed by the housing and the cover.
  • FIG. 1 represents a first embodiment of a device for separating certain substances produced by an internal combustion engine and which come directly from the casing, these materials possibly being composed of liquid parts, gaseous parts and solid parts, such as as stated above.
  • This separation device 1 mainly comprises a housing 2 comprising a bottom 3 from which extends upwardly a cylindrical wall 4 which in the example considered here has an inlet pipe 5 which is directly connected to the housing (not shown ) of the internal combustion engine. It is therefore from this inlet pipe 5 that the materials in liquid, gaseous or solid form, as stated above, occur.
  • the housing 2 also contains a separating element 6 which consists of a filter medium 7 which extends between a first flange 8 called upper flange 8 and a second flange 9 called lower flange 9 in the example considered here.
  • a separating element 6 which consists of a filter medium 7 which extends between a first flange 8 called upper flange 8 and a second flange 9 called lower flange 9 in the example considered here.
  • the lower flange 9 is in sealing contact with the bottom 3 of the housing 2, while the upper flange 8 has external edges which are in sealing contact with the upper end of the cylindrical wall 4 of the housing 2 .
  • the separation device 2 also comprises a flexible membrane 10 which has a outer edge 11 which rests directly on the upper flange 8 of the separating element 6. More exactly, the outer edge 11 of the flexible membrane 10 rests on a shoulder formed on the opening of the upper flange 8 of the separating element 6 so that a cover 12 wedges tightly the outer edge 11 of the flexible membrane 10 against the upper flange 8 of the separating element 6. More generally, the upper flange 8 and / or the cover 12 may define a groove in which the outer edge 11 is embedded.
  • the lid 12 has a hole or orifice 12a so as to put the flexible membrane in communication with the atmosphere.
  • the housing 2 or more exactly the bottom 3 also comprises a central tube 13 which serves as an outlet pipe, this outlet pipe being intended to be directly connected to the air intake of the internal combustion engine.
  • This central tube 13 also comprises an annular flange or flange 14 on which comes to rest a compression spring 15 which bears directly on the flexible membrane.
  • This flexible membrane 10 which is made from an elastomer material may also be overmoulded directly on a plastic or metal insert 10a so as to reinforce its rigidity at the level of the support of the spring 15.
  • the separating element 6 delimits an upstream zone 16 communicating with the inlet pipe 5 and a downstream zone 17 communicating directly with the outlet pipe 13.
  • the flexible membrane 10 comprises a first face subjected to atmospheric pressure and a second face subjected to the pressure of the gases in the downstream zone 17 and the pressure of the spring 15.
  • the substances produced by the engine that is to say the gaseous part that is to say charged with a liquid and solid part are directly conveyed via the inlet pipe 5 in the upstream zone 16 of the device separation device to then pass through the filter medium 7.
  • This filtering medium has a coalescent function on the droplets of water and oil. Indeed, the filter medium 7 captures the droplets of oil and water which then as they cross the thickness of the media from upstream to downstream, will be united in drops more voluminous which finally regroup on the inner periphery of the filter media.
  • the constituent fibers of the media are hydrophobic and oleophobic treated.
  • the filtering medium 7 may have a homogeneous porosity over its thickness or still a gradient of increasing porosity on the thickness of the media from upstream to downstream.
  • the filtering medium 7 is multilayered, the layers of which are arranged and formed in such a way that the porosity of the filter media increases from upstream to downstream to improve the coalescence through the thickness of the filter. media.
  • the filter medium 7 has a filtration function and stops the soot and all the impurities from the housing.
  • the filtered gases are in turn brought directly to the downstream zone 17 by the pressure exerted by the casing and are then directly discharged through the outlet tube 13 to the air intake of the internal combustion engine.
  • the upstream zone 16 is partly formed by the zone radially inside the separating element 7 and the downstream zone 17 is partly formed by the zone radially outside the separating element.
  • the second face of the flexible membrane 10 is this time subject to the pressure of the gases in the upstream zone 16 and to the pressure of the spring 15.
  • the flexible membrane 10 has an outer edge which is directly wedged between the upper flange 8 of the separating element 6 and the cover 12 which this time is sealingly attached to the cylindrical wall 4 of the housing 2 of the device.
  • the upper flange 8 comprises a cylindrical rib which wedges the projecting outer edge 11 of the flexible membrane 10 in an annular groove directly formed on the cover 12.
  • This cover 12 also has an opening 12a so as to put in communication the membrane flexible with the atmosphere.
  • the inlet pipe 5 is directly formed on the bottom 3 of the housing 2 and extends inside the separating element 7 while the outlet pipe 13 is made on the cylindrical wall 4 of the housing 2.
  • the lower flange 9 of the separating element 6 is always in sealing contact with the bottom 3 of the casing 2 while the outer edge of the upper flange 8 is in sealing contact with the cylindrical wall 4 of the casing 2. Furthermore, in this case embodiment the inlet tube 5 also has an internal flange 14a on which comes to rest the spring 15 which also bears on the flexible membrane 10 at the upstream zone 16 of the separating element 6.
  • the pipe 18 for discharging liquid phases such as water and oil is also located in the downstream zone 17.
  • the filtering medium also has a coalescent function for the oil and water droplets. water allowing the latter to unite by crossing the filter media from upstream to downstream to form larger drops that gather this time on the outer periphery of the media and then fall back to the level of the area swallow to the bottom 3 of the housing 2 and finally be discharged to the crankcase via the conduit 18.
  • the displacement of the flexible membrane 10 is different from that previously described for FIG. 1. Indeed, when a significant depression occurs at the intake, it must apply up to the upstream zone 16 (minus the difference of pressure - pressure drop - due to the passage of the filter medium) to be able to move the flexible membrane 10. The pressure in the upstream zone 16 is then lower than the atmospheric pressure. Thus, the displacement of the membrane 10 to the inlet tube 5 allows the closure of the latter by preventing the recycling of gases to the air intake of the internal combustion engine. The rise of the flexible membrane 10 in its position as shown in FIG. 2 can then only be obtained when the pressure has returned to a sufficiently high level so that the gases issuing from the casing and returning towards the separation device are at a pressure sufficient in the upstream zone 16 to raise the flexible membrane 10.
  • This flexible membrane 10 thus prevents any excessive depression in the housing, which would be likely to cause a call from the outside to the housing thus inducing a deterioration of the seals disposed between the housing and the engine block .
  • Figure 3 shows a third embodiment of the invention.
  • the inlet tube 5 is directly formed on the wall 4 of the housing 2 of the separation device and the gas outlet line 13 and the pipe 18 are directly formed on the bottom 3 of the housing 2
  • the separating element 6 always has an upper flange 8 and a lower flange 9.
  • the upper flange 8 has an opening whose outer periphery serves as a seat for the outer edge 11 of the flexible membrane 10 which is further housed in a groove directly on the cover 12 which has an opening 12a.
  • the separating element 6 also comprises a reinforcing element 19 which extends between the upper and lower flanges 8 9, this reinforcing element 19 itself having a central tube 19a which comes directly to the sealingly in the outlet pipe 13.
  • the central tube 19a of the reinforcing element 19 also comprises an outer collar 19b on which the spring 15 rests, which bears on the flexible membrane 10.
  • FIG. 4 represents a fourth embodiment of the device according to the invention.
  • the outer edge 11 of the flexible membrane 10 is directly sealingly wedged between the upper flange 8 of the separating element 6 and the upper end of the reinforcing element 19.
  • the upper flange 8 has an annular groove in which is disposed the outer edge 11 of the membrane 10 so that the latter is jammed and sealed by the reinforcing element 19.
  • Figure 5 shows a fifth embodiment of the invention.
  • the separation device 2 is constituted by a cylinder head cover which is intended to be disposed above the cylinder heads of the internal combustion engine.
  • This separation device comprises a housing 2 which has a shape adapted to the upper part of the internal combustion engine and which has in its lower part a bottom 3 which comprises an opening 5 acting as an inlet of the gases directly from the crankcase of the engine to internal combustion.
  • This housing 2 is also provided with a cover 12 which is provided with an opening 12a and which is also provided with a groove or circular groove in which the outer edge 11 of the flexible membrane 10 is housed, this external edge 11 being sandwiched between the cover 12 and the upper flange 9 of the separation element 6, the lower flange 8 is in sealing contact with a portion 3a of the bottom 3 of the housing.
  • This bottom 3 of the housing 2 also comprises an outlet pipe 13 through which the purified gases are intended to be discharged, which will then be conveyed to the air intake of the internal combustion engine.
  • This pipe 13 which has a substantially perpendicular shape also comprises in the downstream zone 17 a central tube 13a which comprises a collar 14 on which rests the spring 15 which also bears on the flexible membrane 10.
  • the bottom 3 of the housing 2 of the cylinder head cover also comprises a port 18 for discharging liquids such as oil and water, this orifice 18 being located in the downstream zone 17 of the separating element.
  • Figure 6 shows a sixth embodiment of the invention.
  • the device always has a bottom 3 provided with an inlet pipe 5 of gases from the casing and the cylindrical wall 4 which is provided with the output pipe 13 of the gas which will be directly routed to the air intake of the internal combustion engine.
  • the bottom 3 of the housing 2 also has a central duct 20 which has a first orifice 20a, open in the upstream zone 16, and a second orifice 20b, open in the downstream zone 17, the functions of which will be described in greater detail hereinafter. -after.
  • the separating element 6 always has a lower flange 9 which rests sealingly against the bottom 3 of the housing 2 and also partly against the pipe 20 of the same bottom 3, and an upper flange 8 which has a circular rib to seal the outer edge 11 of the flexible membrane 10.
  • This outer edge 11 is itself housed in a circular groove directly formed in the cover 12 which is sealingly attached to the upper part of the cylindrical wall 4 of the housing 2 of the device.
  • the spring 15 is disposed between the cover 12 and the flexible membrane 10 so that the flexible membrane 10 naturally closes the orifice 20a of the pipe 20.
  • this flexible membrane which in its equilibrium state closes the orifice 20a is only to be moved upwards when there is an overpressure in the housing and when the gases conveyed to the inlet pipe 5 are at a sufficiently high pressure to lift the flexible membrane 10 and against the force exerted by the spring 15.
  • this flexible membrane 10 is moved upwardly by releasing the orifice 20a, the gases can then go directly through the bypass line 20 to be then directly routed to the outlet line 13 which is connected to the air intake of the internal combustion engine.
  • This sixth embodiment shown in FIG. 6 therefore acts as a separation device comprising a flexible membrane intended to ensure a bypass of the gases directly from the inlet pipe 5 to the outlet pipe 13 and without going through the separating element 6.
  • This bypass can also be carried out when the separating element or more exactly its filter media 7 is fouled and can no longer ensure proper separation. In that case, the gases can no longer be filtered and pass through the filter element 6, so that the overpressure of the gases in the upstream zone 16 will cause the membrane 10 to rise against the force exerted by the spring 15 so as to directly connecting the inlet pipe 5 with the outlet pipe 13 of the gases.
  • FIG. 7 represents a seventh embodiment of the invention in which the flexible membrane 10 also acts as a bypass membrane as previously described in the embodiment shown in FIG. 6.
  • the inlet duct 5 and the outlet duct 18 of the liquids are directly formed on the bottom 3 of the casing 2 while the outlet of the gases 13 is formed on the cylindrical wall 4.
  • the flexible membrane 10 or more exactly its outer edge 11 is always wedged between the cover 12 and the upper flange 8 of the separating element 6.
  • the cover 12 has a circular groove in which is housed the outer edge 11 of the membrane 10 and the upper flange 8 has a ring 21 which extends upwards to an upper end which abuts against the outer edge 11 of the flexible membrane 10.
  • This flexible membrane 10 also bears on the upper flange 8 or more exactly at the outer periphery of its central opening.
  • the ring 21 comprises a plurality of orifices 21a whose function will be described below.
  • the gases coming from the crankcase arrive via the inlet pipe 5 for arrive in the downstream zone 17 then through the separation element 6 before being discharged to the outlet pipe 13 to be routed to the air intake of the internal combustion engine.
  • the outlet pipe 18 of liquid and oil is placed in the downstream zone 17.
  • the filtering medium has a coalescent function for the liquid particles such as oil and water, and a filtration function of solid particles such as soot.
  • the flexible membrane 10 which rests on the upper flange 8 of the separating element 6 is raised against the force exerted by the spring 15 so that the gases pass through the orifices 21a for arrive directly in the downstream chamber 17 and be routed to the air intake of the internal combustion engine via the outlet pipe 13 of the separation device.
  • Figure 8 shows yet another embodiment of the device according to the invention.
  • FIG. 8 can be envisaged as being similar to that of FIG. 4 except that the central tube 13 is this time disposed over the entire length of the filter element and that the internal collar 14 serves to support the compression spring 15 which also bears against the flexible membrane 10.
  • the outlet tube 18 is formed in the downstream portion of the filter element.
  • the flexible membrane is directly sealingly stuck on the upper flange 8 of the separating element 6 and a flange 19c formed at the upper end of the reinforcing element 19.
  • the upper flange 8 represents an annular groove in which is disposed the outer edge 11 of the flexible membrane 10 so that the latter is jammed and sealed by the reinforcing member 19. The lid then abuts against the upper flange 8 so as to fix the entire element sealingly.
  • FIG. 9 represents another embodiment of the separation arrangement 2 which consists of a cylinder head cover as also described with respect to FIG. 5.
  • the separating element 7 or more exactly its upper end is provided with a Upper flange which also forms the cover 12 of the housing 2 of head cover.
  • the flexible membrane 10 or more exactly its outer edge 11 is wedged between a circular groove formed on the upper cover flange 12 and the tubular reinforcing element 19 which bears on the inner part of the filter medium 7.
  • the filter element or the separation element 6 has a lower flange 9 which bears directly on the bottom of the cylinder head cover.
  • the spring is fully supported on the element 14 which is a flange formed on the bottom of the cylinder head cover and is supported directly on a semi-rigid portion directly overmolded in the flexible membrane 10.
  • the filter medium 7, the lower flange 9, the upper cover flange 12 and the flexible membrane 10 form an assembly that can be dismountable with respect to the casing cover 2.
  • said assembly is attached to the housing 2 by the upper flange 12 forming a lid with a detachable type of snap connection.
  • This mode of connection is not limiting, a connection for example by screwing between said assembly and the housing 2 would also be appropriate.
  • the arrangement of the separating device makes it possible to reduce or eliminate the bulk associated with the flexible membrane 10.
  • the positioning of the latter is for example realized so that the closing portion of the flexible membrane 10 is placed inside the volume of space of the separating element 6 delimited by the two flanges 8, 9. In the examples of the figures and in a nonlimiting manner, this volume of space is substantially cylindrical.
  • the arrangement thus produced makes it possible to insert part of the bulk space of the flexible membrane 10 (frustoconical shape volume for example) into the bulk volume of the separating element 6.
  • the sealing portion of the flexible membrane 10 may correspond to a portion that is remote from the outer edge 11 (for example a central portion).
  • the flexible membrane 10 may be staggered and / or have an extra thickness at the sealing portion.
  • the outer edge 11 can thus remain in a determined position adjacent to an outer face of the upper flange 8, while the closure portion can for example move between two levels, at least of which is lower than the determined position in which the outer edge 11 is jammed.
  • the shutter portion can therefore have axially a degree of freedom in translation.
  • the translation axis corresponds to an axis parallel to the direction of extension of the filter medium 7 between the two flanges 8, 9.
  • This translational movement of the diaphragm portion serving for the closure can be exerted in an axial zone inside the bulk volume of the separating element 6.
  • This axial zone is for example between the level of the upper flange 8 and that of the lower flange 9, and may be surrounded by the media filtering 7.
  • the upper flange 8 serves as a sealing hooking support for the outer edge 11 of the flexible membrane 10 to minimize the overall height requirement of the assembly.
  • a similar reduction in size can be obtained by placing the flexible membrane closer to the upper flange 8, whether there is direct contact or not between this flange 8 and an outer edge 11 of the flexible membrane 10.
  • the communication path vis-à-vis the closing portion must lead to the interior of the space volume of the separation element 6.
  • the Flexible membrane 10 is then at least partly included in this volume of space.
  • a gain in compactness is obtained because the additional space bound to the flexible membrane 10 is greatly reduced.
  • the arrangement according to the invention thus makes it possible to arrange the flexible membrane 10 as close as possible to the upper flange 8.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP20070117341 2006-09-28 2007-09-27 Vorrichtung zur Trennung bestimmter Stoffe, die von einem Verbrennungsmotor produziert werden Ceased EP1905971B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0608534A FR2906564B1 (fr) 2006-09-28 2006-09-28 Dispositif de separation de certaines matieres produites par un moteur a combustion interne

Publications (3)

Publication Number Publication Date
EP1905971A2 true EP1905971A2 (de) 2008-04-02
EP1905971A3 EP1905971A3 (de) 2010-08-04
EP1905971B1 EP1905971B1 (de) 2011-08-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070117341 Ceased EP1905971B1 (de) 2006-09-28 2007-09-27 Vorrichtung zur Trennung bestimmter Stoffe, die von einem Verbrennungsmotor produziert werden

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EP (1) EP1905971B1 (de)
FR (1) FR2906564B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2929985A1 (fr) * 2008-04-09 2009-10-16 Filtrauto Sa Dispositif separateur dote d'un media filtrant, destine a separer l'huile des gaz de carter d'un moteur a combustion interne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410062B (zh) * 2011-10-24 2013-05-22 杭州电子科技大学 一种复合式油气分离器
FR3047052B1 (fr) 2016-01-25 2018-01-05 Renault S.A.S Vilebrequin avec revetement oleophobe
FR3123396B1 (fr) 2021-05-26 2023-04-21 Renault Sas Vilebrequin anti-barbotage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19507202C2 (de) * 1994-03-28 1998-07-16 Knecht Filterwerke Gmbh Entlüftungsventil
DE20016214U1 (de) * 2000-09-18 2002-02-07 Ing. Walter Hengst GmbH & Co. KG, 48147 Münster Drosselventil zur selbsttätigen Regelung des Drucks im Kurbelgehäuse einer Brennkraftmaschine
DE20308834U1 (de) * 2003-06-05 2003-10-02 Dun', Ivan, Moskau/Moskva Ölreinigungsfilter
DE102004022275A1 (de) * 2004-05-06 2005-12-01 Robert Bosch Gmbh Druckregelventil
DE202005010445U1 (de) * 2005-06-30 2006-11-16 Mann + Hummel Gmbh Filteranordnung für Flüssigkeiten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2929985A1 (fr) * 2008-04-09 2009-10-16 Filtrauto Sa Dispositif separateur dote d'un media filtrant, destine a separer l'huile des gaz de carter d'un moteur a combustion interne
EP2108790A3 (de) * 2008-04-09 2010-11-24 Filtrauto Ölnebelabscheidevorrichtung mit einem Filtermedium zur Kurbelraumentlüftung.

Also Published As

Publication number Publication date
FR2906564A1 (fr) 2008-04-04
FR2906564B1 (fr) 2012-02-24
EP1905971A3 (de) 2010-08-04
EP1905971B1 (de) 2011-08-10

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