EP1525376B1 - Separateur d'huile destine a la separation de l'huile du gaz de ventilation du carter de vilbrequin d'une machine a combustion interne - Google Patents

Separateur d'huile destine a la separation de l'huile du gaz de ventilation du carter de vilbrequin d'une machine a combustion interne Download PDF

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Publication number
EP1525376B1
EP1525376B1 EP03766272A EP03766272A EP1525376B1 EP 1525376 B1 EP1525376 B1 EP 1525376B1 EP 03766272 A EP03766272 A EP 03766272A EP 03766272 A EP03766272 A EP 03766272A EP 1525376 B1 EP1525376 B1 EP 1525376B1
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EP
European Patent Office
Prior art keywords
oil
gas
coarse
cyclone
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.)
Expired - Lifetime
Application number
EP03766272A
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German (de)
English (en)
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EP1525376A1 (fr
Inventor
Sieghard Pietschner
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Ing Walter Hengst GmbH and Co KG
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Ing Walter Hengst GmbH and Co KG
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Publication of EP1525376A1 publication Critical patent/EP1525376A1/fr
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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
    • F01M2013/0055—Layout of crankcase breathing systems having one or more deoilers with a by-pass
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/19—Crankcase ventilation

Definitions

  • the present invention relates to an oil separator for separating oil from the crankcase ventilation gas of an internal combustion engine, comprising a housing in which a separating member is disposed, with an inlet for gas to be cleaned, with a purified gas outlet and with an outlet for separated oil.
  • Oil separators for the intended use have long been in use and are known in different versions, for example DE-A 199 12 271 or off DE-U 200 09 605 . Due to structural conditions given by the machine, it may happen in some operating states that larger liquid droplets or splashes from the crankcase of the engine reach into the oil separator. These coarse liquid components from the crankcase then pass in the known separators gushing or continuously into the separator and lead here to a high load and thereby to a reduction in the efficiency of the separator. It is particularly disadvantageous that parts of the coarse liquid can even be carried along on the clean side of the oil separator.
  • the object is to provide an oil separator of the type mentioned above, which avoids the disadvantages set forth and in which it is ensured that coarse oil is reliably deposited, without causing a transfer of coarse oil on the clean side of the oil separator comes and without the coarse oil leads to an overload of the Abscheideorgans. At the same time it should be ensured that no bypass paths for the crankcase ventilation gas arise within the oil separator, through which the crankcase ventilation gas can pass uncleaned from the raw side to the clean side.
  • a first separation stage is formed in the oil separator, which separates coarse oil in the form of oil droplets or splashes from the crankcase ventilation gas.
  • the coarse oil which collects in the oil sink in the oil separator, is discharged through the coarse oil cyclone, since its inflow opening is at the level of the oil sink.
  • the oil is separated from the part of the crankcase ventilation gas also entering the coarse oil cyclone.
  • the remaining other partial flow of the crankcase ventilation gas is supplied to the separator and herein, as known per se separated entrained finer oil droplets and oil mist, without this separation process is inhibited by coarse oil.
  • the coarse oil from the coarse oil cyclone and the oil from the separator on the one hand and the exempted from oil purified partial flows of the crankcase ventilation gas on the other hand can then be respectively supplied to the associated outlet of the oil separator.
  • the oil separator according to the invention avoids any bypass path through which uncleaned crankcase ventilation gas could pass from the raw side to the clean side of the oil separator. An undesired additional pressure drop does not occur due to the additionally provided coarse oil cyclone, since this reduces the overall flow resistance of the oil separator rather than increases it.
  • the oil separator according to the invention achieves a very high overall efficiency, this efficiency is ensured both for the separation of fine oil droplets and oil mist in the separator and for the separation of coarse oil in coarse oil cyclone. Movable items whose production and assembly are complicated and whose function is sometimes not reliable, in particular a valve, the oil separator according to the invention does not need for its function.
  • the coarse oil cyclone and the separating member are designed so that a coarse oil cyclone flowing through the first partial flow of the crankcase ventilation gas is smaller than the remaining, the separating member flowing through second partial flow of the crankcase ventilation gas.
  • the coarse oil cyclone in its design be designed so that it must enforce only a relatively small crankcase ventilation gas partial flow and therefore manages with a small space.
  • the additional coarse oil cyclone including the coarse oil sink usually in existing oil separators or their housing can be integrated without the housing of the oil separator would have to be increased and without the separator would have to be downsized.
  • the raw gas region of the housing adjoining the inlet is equipped with means for slowing down and / or deflecting the flow of the crankcase vent gas to be cleaned.
  • the means for slowing down the flow may in the simplest case consist of a cross-sectional enlargement of the flow path, which is easy to implement.
  • As means for deflecting the flow can serve as baffles or walls or fins, for example, which are arranged in the flow path. Both means, either alone or in combination, effectively separate and collect the coarse oil from the incoming crankcase vent gas in the oil sink.
  • the coarse oil cyclone has a Gasausströmö réelle, which is formed by a projecting from above into the coarse oil cyclone dip tube, which is connected to the outlet for purified gas.
  • the gas separated from the entrained oil is then discharged through the dip tube up and passes in this way in the clean gas area of the oil separator and from there to its outlet for purified gas.
  • the oil separated in the coarse oil cyclone flows downwards in particular under the action of gravity and passes through an oil outlet opening provided at the base of the coarse oil cyclone, as usual, into the oil outlet region of the oil separator.
  • the swirling flow forming in the coarse oil cyclone ensures that as far as possible only oil exits the coarse oil cyclone via the oil outlet, while the swirling oil purified from coarse oil Gas leaves in the opposite direction upwards the coarse oil cyclone oil-free. An undesirable bypass flow of unpurified raw gas through the coarse oil cyclone from the raw gas side to the clean gas side of the oil separator is thus prevented here.
  • An alternative embodiment of the invention ⁇ labscheiders provides that the coarse oil cyclone is closed on the upper side and that a lower side ⁇ lausströmö réelle the coarse oil cyclone also forms its Gasausströmö réelle, said outflow is connected to both the outlet for separated oil and with the outlet for purified gas.
  • This embodiment of the oil separator is particularly suitable for applications in which incurred large coarse oil quantities at the gas inlet of the oil separator. Since a gas discharge from the coarse oil cyclone directly into the clean gas area is not present here, there is also no risk that come from the coarse oil cyclone coarse oil drops in the clean gas area. Instead, the gas is discharged from the coarse oil cyclone through the oil outlet opening together with the oil, but also here the desired separation of gas and oil is ensured.
  • the oil flows down over the inner surface of the coarse oil cyclone and drips through the oil outlet into the oil outlet area of the oil separator.
  • the coarse-oil purified gas flows out of the coarse-oil cyclone through the same discharge port, and is then guided out of the oil-discharge region of the oil separator by a suitable fluid communication to the gas outlet of the purified-gas oil separator.
  • an already existing connection is used for the aforementioned removal of the exiting from the coarse oil cyclone through the ⁇ lauslrawö réelle clean gas, namely an inner oil return line, the outlet side Pure gas area of the housing connects to the ⁇ läuslledge Scheme.
  • a similar return line is for example off DE-U 299 08 116 known.
  • the already existing oil return line through which oil can flow from the clean gas area in the oil outlet, used during operation of the internal combustion engine for venting of clean gas from the oil outlet in the clean gas area. Additional line connections must therefore not be provided in this embodiment of the oil separator.
  • the separator of the oil separator may have different designs.
  • a first preferred embodiment provides that the separating element is formed by a single or a plurality of cyclones.
  • An alternative embodiment of the oil separator in this respect suggests that the separating element is formed by a single or a plurality of coalescence separators.
  • the separating member is formed together with the coarse oil cyclone as insertable into the housing and removable from the housing insert. In this way, a rational production and installation of the oil separator is made possible. In addition, with a given housing of the oil separator either one of different Abscheideorganen be used. This flexible adaptation of the oil separator to different applications and requirements is possible.
  • a pressure limiting valve to be integrated in the housing between its raw gas region and clean gas region. This pressure relief valve ensures that a maximum allowable pressure on the raw gas side and thus in the crankcase of the associated internal combustion engine can not be exceeded.
  • the pressure relief valve is preferably designed as part of the insert.
  • a vacuum control valve is integrated in the housing in the clean gas region. This vacuum control valve ensures in a known manner that a lower pressure limit in the crankcase of the associated internal combustion engine is not exceeded, even if in the connected to the clean gas side of the oil separator intake tract of the engine, a very low pressure, ie a strong negative pressure prevails.
  • an oil separator 1 has a two-part housing 10. With a lower housing part 10 'and a housing upper part 10' sealingly connected thereto. At the top right of the lower housing part 10 'is a gas inlet 11, which is usually connected to a line which comes from the crankcase of an associated internal combustion engine. Right on the upper housing part 10 '' is a gas outlet 12, which is usually connected via a line to the intake of the associated internal combustion engine. At the very bottom of the lower housing part 10 ', an oil outlet 13 is provided, which is usually connected via a line to the oil pan of the associated internal combustion engine.
  • a cyclone 20 is arranged as a separating element. This cyclone 20 serves to separate oil mist from the crankcase ventilation gas, which flows through the gas inlet 11 into a raw gas region 11 'of the oil separator 1.
  • a vortex flow which ensures that the oil mist forming oil droplets precipitate on the inner surface of the wall of the cyclone 20, while the cleaned of the oil mist gas itself in the center of the cyclone 20 collects.
  • the purified gas passes through a Gasausströmö réelle 22 in the form of a dip tube upwards from the cyclone 20 out into the clean gas area 12 'in the upper part 10''of the housing 10. From there, the purified gas flows through a provided in the upper housing part 10 "vacuum control valve 5 of known type to the gas outlet 12 and from there into the intake
  • the separated oil flows in particular under gravity downward and through an oil outlet in an oil outlet 13 upstream oil outlet 13 'of the housing 10. Through the oil outlet 13, the oil through a siphon, not shown, or a drain valve in the oil pan of the engine flow.
  • a lower, lying below the gas inlet 11 of the raw gas portion 11 'in the interior of the housing 10 of the oil separator 1 is formed here as an oil sink 14.
  • coarse oil ie in particular oil, which is transported in the form of larger drops and creeping oil from the crankcase ventilation gas to the gas inlet 11 collects.
  • the housing 10 is formed following its inlet 11 with an abruptly increased flow cross-section, which ensures a significant flow slowdown. As a result, the coarse oil settles for the most part in the oil sink 14 before the crankcase ventilation gas passes into an inflow opening 21 of the separator 20 forming the cyclone.
  • this inflow opening 21 is offset relative to the gas inlet 11 upwards.
  • the gas inlet opening 21 is thus in the upper region of the raw gas region 11 ', where, although the oil mist passes together with the crankcase ventilation gas, but not the larger oil drops. The latter settle rather as coarse oil in the oil sink 14.
  • a coarse oil cyclone 30 is also provided.
  • This coarse-oil cyclone 30 lies relative to the separating element, in this case the cyclone 20, displaced downwards in the lower part of the housing lower part 10 '.
  • An inflow opening 31 of the coarse oil cyclone 30 is equal to the oil sink 14, so that the coarse oil that has settled in the oil sink 14, passes through this inflow opening 31 together with a smaller partial flow of the crankcase ventilation gas into the interior of the coarse oil cyclone 30.
  • coarse oil cyclone 30 is carried out in a known manner, a separation in oil and clean gas.
  • the oil flows under gravity along the inner surface of the coarse oil cyclone 30 down and passes through an oil outlet 33 in the lower part of the housing lower part 10 'forming ⁇ lablador Society 13' of the oil separator 1. From there, the oil through the oil outlet 13 to the oil pan of the associated Drain engine.
  • the crude oil purified from the coarse oil collects in the center of the coarse-oil cyclone 30 and flows from there through its gas outflow opening 32 upwards into the clean gas area 12 '.
  • the Gasausströmö réelle 32 is here formed by a dip tube 32 ', which connects the interior of the coarse oil cyclone 30 with the clean gas region 12'.
  • a pressure limiting valve 4 and vacuum control valve 5 are furthermore arranged inside the oil separator housing 10. These valves are of a type known per se and serve to maintain the pressure in the crankcase of the associated internal combustion engine within a permissible pressure range between a lower and an upper pressure limit value.
  • the cyclone 20, the oil sink 14, the additional coarse oil cyclone 30 and the pressure relief valve 4 are combined to form a prefabricated component insert 2.
  • This insert 2 can be inserted into the housing 10 and removed from the housing 10, with the housing upper part 10 "removed, in this way the housing 10 of the oil separator 1 can optionally be provided with one of a plurality of differently designed inserts of the single cyclone 20 have a multi-cyclone with several smaller cyclones or a coalescence separator.
  • FIG. 1 shows FIG. 1 an inner oil return line 15 which connects the clean gas area 12 'to the oil outlet area 13'.
  • This inner oil return line 15 may optionally accumulating oil or condensate from the clean gas region 12 'down into the oil drain region 13' flow.
  • oil that has possibly been entrained in the clean gas area 12 'and has deposited there by appropriate design of the oil return line 15 during operation of the internal combustion engine in the oil outlet 13' out before it via the gas outlet 12 in the intake get the associated internal combustion engine and there can lead to malfunction.
  • the cyclone 20 and the coarse-oil cyclone 30 have an approximately the same size.
  • the embodiment of the oil separator 1 according to FIG. 2 a coarse oil cyclone 30 whose size compared to the actual separator forming cyclone 20 a considerably smaller size. This ensures that only a relatively small partial flow of the crankcase ventilation gas flows through the coarse oil cyclone 30. By far the largest part of the crankcase ventilation gas flows through the cyclone 20 where it ensures an effective separation even of very fine oil droplets, which form the oil mist, which is carried in the crankcase ventilation gas. For the separation of coarse oil, which has settled in the oil sink 14 zt, a much smaller partial flow of the crankcase ventilation gas is sufficient, which positively affects the overall separation efficiency of the oil separator. In addition, so needs the coarse oil cyclone 30 only a small installation space, which can be easily found in the housing 10, without therefore the housing 10 increases or the actual separating element, here the cyclone 20, would have to be reduced.
  • the arrangement of the oil sink 14, the cyclone 20 and the pressure relief valve 4 and the vacuum control valve 5 is in the embodiment of the oil separator 1 according to FIG. 2 opposite the FIG. 1 unchanged.
  • the size of the coarse oil cyclone 30 is, in particular as regards its diameter, here much smaller. Unchanged but here the inflow opening 31 is arranged at the level of the oil sink 14, so that the oil that has deposited in the region of the oil sink 14, reliably and completely enters the coarse oil cyclone 30.
  • coarse oil cyclone 30 the separation of coarse oil and gas takes place here as well.
  • the purified gas passes through the dip tube 32 ', which forms the Gasausströmö réelle 32, up into the clean gas area 12'.
  • the coarse oil separated from the partial flow of the crankcase ventilation gas in the coarse-oil cyclone 30 flows downwardly through the oil outlet opening under the action of gravity 33 in the oil outlet 13 'of the oil separator. 1
  • the embodiment of the oil separator 1 according to FIG. 3 Finally, it has a coarse-oil cyclone 30 which, in contrast to the two previously described embodiments of the oil separator 1, is closed on the upper side.
  • this coarse oil cyclone 30 the inflow opening 31 is also again in the amount of existing oil sink 14, so that there settled coarse oil passes together with a smaller partial flow of the crankcase ventilation gas into the interior of the coarse oil 30, when the associated internal combustion engine is in operation and a pressure difference between raw gas region 11 'and clean gas region 12' is present.
  • a cyclone-vortex flow is also formed here, which precipitates the oil drops on the inner surface of the coarse-oil cyclone 30. The precipitated coarse oil flows from there by gravity down through the oil outlet 33 and enters the oil outlet 13 'of the oil separator. 1
  • the purified gas can not leave the coarse oil cyclone 30 at the top in this embodiment of the oil separator 1, since the upper end of the coarse oil cyclone 30 is closed. Instead, the purified gas also exits through the bottom oil outlet 33 from the coarse oil cyclone 30. The purified gas thus enters here in the oil outlet 13 'a. From there, the purified gas flows through the inner oil return line 15 upwards into the clean gas area 12 '.
  • the inner oil return line 15 advantageously has a dual function and an additional line for the guidance of the purified gas from the ⁇ lauslledge Scheme 13 'in the clean gas area 12' is not required.
  • the particular advantage of this embodiment of the oil separator 1 with closed on the upper side coarse oil cyclone 30 is that even with a very large coarse oil in the incoming crankcase ventilation gas tearing or trespassing coarse oil from the coarse oil cyclone 30 is immediately excluded upwards in the clean gas area 12 '. At the same time, however, the coarse oil is separated from the this by the coarse oil cyclone 30 conveying partial flow of the crankcase ventilation gas, so that only purified gas in the clean gas area 12 'passes here. The separated oil is collected in the oil outlet 13 'and returned from there through the oil outlet 13 to the oil pan of the engine.

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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)

Claims (12)

  1. Séparateur d'huile (1) pour déshuiler le gaz de ventilation du carter de vilebrequin d'un moteur à combustion, comportant un boîtier (10) dans lequel est situé un organe séparateur (20), une entrée (11) de gaz à purifier, une sortie (12) de gaz purifié et une sortie (13) d'huile séparée, caractérisé en ce que
    - une zone de gaz brut (11') du boîtier (10), laquelle fait suite à l'entrée (11), est réalisée avec un collecteur d'huile (14) dans lequel se déposent des particules grossières d'huile entraînées par le courant gazeux qui afflue,
    - le séparateur d'huile (1) comprend, outre l'organe séparateur (20), un cyclone à particules grossières d'huile (30) dont l'orifice d'admission (31) est situé à hauteur du collecteur d'huile (14) dans celui-ci et
    - l'organe séparateur (20) comporte un orifice d'admission (21) qui se trouve spatialement au-dessus de l'orifice d'admission (31) du cyclone à particules grossières d'huile (30).
  2. Séparateur d'huile selon la revendication 1, caractérisé en ce que le cyclone à particules grossières d'huile (30) et l'organe séparateur (20) sont conçus de manière telle qu'un premier flux partiel du gaz de ventilation du carter de vilebrequin traversant le cyclone à particules grossières d'huile (30) est plus petit que le deuxième flux partiel du gaz de ventilation du carter de vilebrequin qui traverse l'organe séparateur (20).
  3. Séparateur d'huile selon la revendication 1 ou 2, caractérisé en ce que la zone de gaz brut (11') du boîtier (10), laquelle fait suite à l'entrée (11), est équipée de moyens pour ralentir et/ou dévier le flux du gaz à purifier.
  4. Séparateur d'huile selon l'une des revendications précédentes, caractérisé en ce que le cyclone à particules grossières d'huile (30) comporte un orifice d'échappement de gaz (32) qui est constitué par un tube plongeur (32') qui fait saillie par le haut dans le cyclone à particules grossières d'huile (30) et qui est relié à la sortie (12) de gaz purifié.
  5. Séparateur d'huile selon l'une des revendications 1 à 3, caractérisé en ce que le cyclone à particules grossières d'huile (30) est fermé en sa partie supérieure et en ce qu'un orifice d'échappement d'huile (33) du cyclone à particules grossières d'huile (30), situé côté inférieur, constitue en même temps l'orifice d'échappement de gaz (32) de celui-ci, ledit orifice d'échappement (32, 33) étant relié non seulement à la sortie (13) d'huile séparée, mais aussi à la sortie (12) de gaz purifié.
  6. Séparateur d'huile selon la revendication 5, caractérisé en ce que la liaison entre l'orifice combiné d'échappement d'huile et de gaz (32, 33), d'une part, et la sortie (12) de gaz purifié, d'autre part, est constituée par une conduite intérieure de retour d'huile (15) qui relie une zone de gaz propre (12') du boîtier (10) côté sortie et la zone de sortie d'huile (13') de celui-ci.
  7. Séparateur d'huile selon l'une des revendications précédentes, caractérisé en ce que l'organe séparateur (20) est constitué par un seul cyclone ou par plusieurs cyclones.
  8. Séparateur d'huile selon l'une des revendications précédentes, caractérisé en ce que l'organe séparateur (20) est constitué par un seul séparateur à coalescence ou par plusieurs séparateurs à coalescence.
  9. Séparateur d'huile selon l'une des revendications précédentes, caractérisé en ce que l'organe séparateur (20), conjointement avec le cyclone à particules grossières d'huile (30), se présente sous la forme d'un composant insérable (2) pouvant être placé dans le boîtier (10) et pouvant être retiré du boîtier (10).
  10. Séparateur d'huile selon l'une des revendications précédentes, caractérisé en ce qu'une soupape de limitation de pression (4) est intégrée dans le boîtier (10) entre la zone de gaz brut (11') et la zone de gaz propre (12') de celui-ci.
  11. Séparateur d'huile selon la revendication 9 et 10, caractérisé en ce que la soupape de limitation de pression (4) se présente sous la forme d'une partie du composant insérable (2).
  12. Séparateur d'huile selon l'une des revendications précédentes, caractérisé en ce qu'une soupape de réglage de dépression (5) est intégrée dans le boîtier (10) dans la zone de gaz propre (12') de celui-ci.
EP03766272A 2002-07-26 2003-07-24 Separateur d'huile destine a la separation de l'huile du gaz de ventilation du carter de vilbrequin d'une machine a combustion interne Expired - Lifetime EP1525376B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20211329U DE20211329U1 (de) 2002-07-26 2002-07-26 Ölabscheider zur Abscheidung von Öl aus dem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine
DE20211329U 2002-07-26
PCT/EP2003/008106 WO2004013468A1 (fr) 2002-07-26 2003-07-24 Separateur d'huile destine a la separation de l'huile du gaz de ventilation du carter de vilbrequin d'une machine a combustion interne

Publications (2)

Publication Number Publication Date
EP1525376A1 EP1525376A1 (fr) 2005-04-27
EP1525376B1 true EP1525376B1 (fr) 2009-01-21

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EP03766272A Expired - Lifetime EP1525376B1 (fr) 2002-07-26 2003-07-24 Separateur d'huile destine a la separation de l'huile du gaz de ventilation du carter de vilbrequin d'une machine a combustion interne

Country Status (8)

Country Link
US (1) US7422612B2 (fr)
EP (1) EP1525376B1 (fr)
JP (1) JP4319982B2 (fr)
KR (1) KR100743856B1 (fr)
AT (1) ATE421634T1 (fr)
BR (1) BR0305674B1 (fr)
DE (2) DE20211329U1 (fr)
WO (1) WO2004013468A1 (fr)

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WO2004013468A1 (fr) 2004-02-12
KR100743856B1 (ko) 2007-08-01
BR0305674A (pt) 2004-10-19
JP4319982B2 (ja) 2009-08-26
KR20050023230A (ko) 2005-03-09
US7422612B2 (en) 2008-09-09
DE50311125D1 (de) 2009-03-12
EP1525376A1 (fr) 2005-04-27
JP2005533965A (ja) 2005-11-10
ATE421634T1 (de) 2009-02-15
US20060090737A1 (en) 2006-05-04
BR0305674B1 (pt) 2013-03-05

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