EP1285152B1 - Dispositif pour deshuiler des gaz evacues du carter de vilebrequin d'un moteur a combustion interne - Google Patents

Dispositif pour deshuiler des gaz evacues du carter de vilebrequin d'un moteur a combustion interne Download PDF

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Publication number
EP1285152B1
EP1285152B1 EP01951537A EP01951537A EP1285152B1 EP 1285152 B1 EP1285152 B1 EP 1285152B1 EP 01951537 A EP01951537 A EP 01951537A EP 01951537 A EP01951537 A EP 01951537A EP 1285152 B1 EP1285152 B1 EP 1285152B1
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EP
European Patent Office
Prior art keywords
bypass channel
pressure
oil mist
mist separator
open
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
EP01951537A
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German (de)
English (en)
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EP1285152A1 (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 EP1285152A1 publication Critical patent/EP1285152A1/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
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • 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
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/023—Control valves in suction conduit
    • 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
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422—Separating oil and gas with a centrifuge device
    • F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
    • 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
    • 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
    • F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase
    • F01M2013/0494—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase using check valves

Definitions

  • the invention relates to a device for de-oiling crankcase ventilation gases an internal combustion engine having at least one oil mist separator, the one with the crankcase connected gas inlet and connected to the air intake tract gas outlet and having an oil outlet connected to the oil sump of the internal combustion engine.
  • blow-by gases pass into the crankcase interior, which have to be removed, since otherwise an undesirable increase in the internal pressure in the crankcase would occur.
  • the blow-by gases are fed back as crankcase ventilation gases via a vent path to the air intake tract of the internal combustion engine.
  • the gas inlet-side pressure range as the 1st pressure range (p1) and the gas outlet side Pressure range referred to as 2nd pressure range (p2).
  • the differential pressure drop across the oil mist separator thus directly causes a Drukkerhöhung in the crankcase.
  • the degree of separation of the oil mist separator depending on the pressure difference.
  • ⁇ lnebelabscheider are preferably cyclones or so-called Koaleszenzabscheider used in the form of a knit or Wickelabscheiders.
  • a cyclone oil mist separator is known for example from DE 42 14 324 C2
  • a deoiling with a Koaleszenzabscheider is described in DE 197 29 439 A1.
  • the object of the invention is therefore an apparatus for de-oiling crankcase ventilation gases to develop the oil mist under all operating conditions causes and avoided with the impermissible pressure increases in the crankcase.
  • the device according to the invention uses a controllable with respect to its flow bypass channel vision, which is arranged as a bypass parallell to ⁇ lnebelabscheider in the crankcase ventilation path for this purpose, the bypass channel directly or indirectly with the crankcase (1st pressure area) connected gas inlet and a direct or indirectly connected to the air intake tract (2nd pressure area) connected gas outlet.
  • the bypass channel together with its control means is thus designed so that an oil separation in the bypass channel is also effected in the bypass channel due to flow deflection and impact separation or as a result of impaction.
  • separation behavior of the entire device oil mist separator plus controllable bypass channel
  • the degree of separation is still sufficiently high, even when the bypass is open to divert the separated oil in the bypass channel of the bypass channel, for example via an oil outlet connected to the oil sump.
  • the oil mist separator is designed to operate for a given volume flow has a certain degree of separation, which then also a certain differential pressure drop is implied. Care is taken in determining the operating point, that the differential pressure plus possibly a certain tolerance range below a is critical for crankcase pressure.
  • the inventively controllable bypass acts in the same way in a knitted or Wickelabscheider, which at the same volume flow due to contamination in the Over time, produce a significantly increased differential pressure of the overall device would.
  • a sensor is provided which detects whether the bypass channel is open or not opened bypass channel (valve in the open position) is then an optical or acoustic Warning signal for the operator of the internal combustion engine generated This signal is then an indication that he knitted and Wickelabscheider a certain degree of contamination has reached. The operator can then react accordingly and the Replace knit or wound separator.
  • differential pressure limiting effect of the controllable bypass channel naturally arises not only with differential pressure increases occurring after a certain time due to wear of the internal combustion engine or contamination of the oil mist separator, but also in the case of temporary differential pressure increases.
  • FIG. 1 shows a schematic arrangement of the device (1) according to the invention in the venting path.
  • the device (1) consisting of oil mist separator (2) and controllable Bypass passage (3) is between the crankcase (5) to be vented and the air intake tract (6) arranged in the air intake tract (6) prevailing vacuum can in certain Operating conditions of the internal combustion engine increase sharply.
  • a so-called crankcase vacuum control valve (9) which is arranged here before the oil removal device (1) Die Gas inlets (2A, 3A) of the oil mist separator (2) and the bypass channel (3) are so Therefore, indirectly via the crankcase vacuum control valve (9) with the pressure range of Crankcase (5) connected.
  • the gas inlet side pressure is marked as 1st pressure range
  • the gas outlets (2B, 3B) of the oil mist separator (2) and the bypass duct (3) are here connected directly to the air intake tract (6) marked as the second pressure range.
  • crankcase vacuum control valve (9) behind the deoiling (1) arranged.
  • FIG. 3 shows two differential pressure / volume flow characteristics for a cyclone separation device shown.
  • the solid line refers to a cyclone without the controllable one Bypass channel.
  • the dashed line on an embodiment of the invention Device consisting of cyclone and controllable bypass channel. How to recognize can, increases the differential pressure in a cyclone oil mist separator with increasing flow drastically. In particular, at wear of the internal combustion engine, the Volume flows permanently be so great that the associated differential pressure increase is indefensible This pressure increase counteracts the inventive device. As you can see from the diagram, opens at a certain flow, the a critical pressure drop across the cyclone automatically causes the bypass channel, so that the further increase of the differential pressure with increasing volume flow much flatter runs.
  • FIG 4 are two degrees of separation / volume flow characteristics for a cyclone separator shown.
  • the solid line refers to a cyclone without the controllable one By-pass, the dashed line on an embodiment of the invention Device consisting of cyclone and controllable bypass channel. How to recognize can, even if the bypass channel is still open, have a good separation efficiency - even if this is lower than in a cyclone oil mist separator without bypass channel.
  • FIG. 6 shows an enlarged view the bypass channel in the region of the valve body to illustrate the oil mist separation according to the impaction principle.
  • the spring-loaded valve body acts as a baffle plate of a dynamically adapting impactor whose flow gap (S) is adjustable via the valve spring differential pressure dependent.
  • the device according to the invention thus has the design point of the oil mist separator a high degree of separation, while at high flow rates overpressure in Crankcase is reliably avoided, whereby even then a sufficiently high degree of separation is effected.
  • FIG. 5 shows a section through an embodiment of the invention.
  • the oil mist separator as a cyclone (2) is formed on the integrally the bypass channel (3) is arranged
  • cyclone (2) and bypass channel (3) are integrally formed by injection molding, whereby the device according to the invention can be produced inexpensively.
  • the oil mist separator (2) and the bypass channel (3) which are formed here as an integral unit, housed in a receiving housing (7), which is only hinted at here.
  • the receiving housing (7) is connected to the first pressure range, so that the gas inlets (2A, 3A) of cyclone (2) and bypass channel (3) in the interior of the receiving space (7) with the pressure p 1 are applied.
  • the gas outlets (2B, 3B) of cyclone (2) and bypass channel (3) are compared with the pressure area inside the receiving housing (7) sealed out of this out in the second pressure range (to the air intake) out.
  • the gas outlets (2B, 3B) of the cyclone (2) and bypass channel (3) open into a sealed space (8) connected to the second pressure zone. Due to the integral assembly (cyclone + bypass channel) and the installation in a pressure-tight receiving housing (7) can be dispensed with separate, otherwise doubled connecting lines from the crankcase to the gas inlets from the gas outlets to the air intake.
  • a means (4) for differential pressure-dependent opening and closing is in the bypass channel (3) one of a compression spring (4C) acted upon valve body (4A) - here a valve plate - arranged.
  • a predetermined opening pressure difference the valve body (4A) of the compression spring (4C) against a valve seat arranged in the bypass channel (3) (4B) pressed into a closed position.
  • the valve body (4A) against the compression spring (4C) releasing a flow gap (S) raised from the valve seat (4B).
  • the opening pressure difference results from the spring constant and the flowed surface of the valve body (4A).
  • the compression spring (4C) with a targeted, Bias matched to the opening pressure difference in the bypass channel (3) install.
  • the installation length of the compression spring (4C) in the differential pressure State adjustable can be done, for example, by (not shown) that the Compression spring (4C) at its end facing away from the valve body (4A) on a support element (4D) is supported in the bypass channel (3) whose axial distance from the valve seat (4B) is adjustable.
  • valve body with compression spring and a valve body can be used, that of gravity below a certain opening pressure difference against the valve seat is pressed in a closed position, wherein above the opening pressure difference of Valve body is lifted from the valve seat with release of the flow gap.
  • a Hubbegrenzugnsanschlag (not shown) may be provided.
  • a throttle valve arranged in the bypass channel or an opening can be used under bias closing leaf valve (both embodiments are not shown), which also cause a de-oiling by impaction.
  • the oil sump wherein the oil separated from the cyclone (2) via a drain valve disposed on the oil outlet (2C) (2D) gets into the oil sump.
  • the oil separated from the bypass channel (3) can escape via the gas inlet (3A) and directly or via an intermediate reservoir (not shown) flow back into the oil sump or -drop.

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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 (20)

  1. Dispositif pour le déshuilage de gaz de désaération ducarter de la manivelle d'un moteur à combustion interne avec au moins un séparateur de brouillard d'huile (2) comportant
    une admission de gaz (2A) reliée à une 1ère zone de pression (p1) pouvant être raccordée directement ou indirectement au carter du vilebrequin (5),
    une sortie de gaz (2B) reliée à une 2ème zone de pression (p2) pouvant être raccordée directement ou indirectement à la hotte d'aspiration d'air (6), et
    une sortie d'huile (2C) pouvant être reliée au puisard du moteur à combustion interne,
    étant donné que
    un canal périphérique (3) est prévu, lequel canal comporte une admission de gaz (3A) reliée à la 1ère zone de pression et une sortie de gaz (2B) reliée à la 2ème zone de pression,
    au moins un dispositif (4) est prévu pour ouvrir et fermer progressivement ou graduellement, en fonction de la pression différentielle (Δ ≈ p1 - p2) entre les deux zones de pression, le canal périphérique (3) afin d'assurer l'écoulement du gaz de désaération du carter de la manivelle,
    étant donné que, lorsque le canal périphérique (3) est ouvert, une partie du volume du gaz de désaération ducarter de la manivelle s'écoule dans la 2ème zone de pression, via le séparateur de brouillard d'huile (2), à travers le canal périphérique (3),
    caractérisé par le fait que
    le canal périphérique (3) et le dispositif (4) d'ouverture et de fermeture du canal périphérique (3) sont conçus de manière à ce que, lorsque le canal périphérique (3) est ouvert, et sous l'effet de la déviation du flux et la séparation par déflexion, on assiste à un déshuilage dans le canal périphérique.
  2. Dispositif selon la revendication 1,
    caractérisé par le fait que le dispositif (4) d'ouverture et de fermeture du canal périphérique (3) est un corps de soupape (4A) chargé par un ressort de pression (4C), lequel corps de soupape est, au-dessous d'une différence de pression d'ouverture définie au préalable, pressé par le ressort de pression (4C) contre un siège de soupape (4C) disposé dans le canal périphérique (3) dans une position de fermeture, étant donné que, au-dessus de la différence de pression d'ouverture définie au préalable, le corps de soupape (4A) est soulevé du siège de la soupape (4B) contre le ressort de pression (4C) en dégageant une fente d'écoulement (S).
  3. Dispositif selon la revendication 2,
    caractérisé par le fait que la longueur de montage du ressort de pression (4C) peut être ajustée lorsque la pression différentielle est nulle.
  4. Dispositif selon la revendication 3,
    caractérisé par le fait que le ressort de pression (4C) s'appuie à son extrémité orientée vers le corps de soupape (4A) sur un élément d'appui (4D) dans le canal périphérique (3), élément dont l'écartement axial par rapport au siège de soupape est réglable.
  5. Dispositif selon la revendication 1,
    caractérisé par le fait que le dispositif (4) d'ouverture et de fermeture du canal périphérique (3) est constitué par un corps de soupape (4A) qui, au-dessous d'une différence de pression d'ouverture définie au préalable, est pressé par la force gravitationnelle contre un siège de soupape (4B) disposé dans le canal périphérique (3) dans une position de fermeture, étant donné que, au-dessus de la différence de pression d'ouverture définie au préalable, le corps de soupape (4A) est soulevédu siège de soupape (4B) en dégageant une fente d'écoulement (S).
  6. Dispositif selon l'une quelconque des revendications 2 à 5,
    caractérisé par le fait qu'une butée de limitation de course a été prévue pour déterminer la dimension de la levée maximale du corps de soupape (4A) par rapport au siège de soupape (4B).
  7. Dispositif selon la revendication 1,
    caractérisé par le fait que le dispositif (4) d'ouverture et de fermeture du canal périphérique (3) est constitué par une vanne-papillon pivotante disposée dans le canal périphérique (3).
  8. Dispositif selon la revendication 1,
    caractérisé par le fait que le dispositif (4) d'ouverture et de fermeture du canal périphérique (3) est constitué par une soupape à lamelle.
  9. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par le fait que le séparateur de brouillard d'huile (2) est conçu comme cyclone.
  10. Dispositif selon l'une quelconque des revendications 1 à 8,
    caractérisé par le fait que le séparateur de brouillard d'huile (2) est conçu comme séparateur à coalescence sous forme d'un séparateur à tricot ou à enroulement.
  11. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par le fait que le canal périphérique (3) est conçu comme partie intégrante du séparateur de brouillard d'huile (2).
  12. Dispositif selon la revendication 9 et 11,
    caractérisé par le fait que le canal périphérique (3) et le cyclone (2) sont fabriqués en une pièce unique en matière plastique.
  13. Dispositif selon la revendication 11 ou 12,
    caractérisé par le fait que le séparateur de brouillard d'huile (2) et le canal périphérique (3) sont chacun disposés avec leurs admissions de gaz (2A, 3A) dans un boítier de réception (7) commun relié à la 1ère zone de pression, étant donné que les sorties de gaz (2B, 3B) du séparateur de brouillard d'huile (2) et du canal périphérique (3) créent l'étanchéité par rapport à la zone de pression dans le boítier de logement (7) dudit boítier de logement (7) dans la 2ème zone de pression.
  14. Dispositif selon la revendication 13,
    caractérisé par le fait que les sorties de gaz (2B, 3B) du séparateur de brouillard d'huile (2) et du canal périphérique (3) débouchent dans un espace intermédiaire (8) étanchéifié qui est relié à la 2ème zone de pression.
  15. Dispositif selon la revendication 12,
    caractérisé par le fait que les sorties de gaz (2B, 3B) du séparateur de brouillard d'huile (2) et du canal périphérique (3) sont conduites séparément hors du boítier de réception (7) dans la 2ème zone de pression.
  16. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par le fait qu'une paroi du canal périphérique (3) entoure le dispositif (4) pour l'ouverture et la fermeture de ce dernier, tout en dégageant une fente (3C).
  17. Dispositif selon la revendication 16,
    caractérisé par le fait que la section de passage de la fente (3C) est au maximum aussi grande que la section de passage du dispositif (4).
  18. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par le fait que le canal périphérique (3) est relié directement ou indirectement au puisard par une sortie d'huile.
  19. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par le fait qu'il a été prévu un détecteur qui détecte si le canal périphérique (3) est ouvert, étant donné que, si le canal périphérique (3) est ouvert, le détecteur émet un signal d'avertissement optique ou acoustique.
  20. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé par le fait que la surface de la section droite du canal périphérique (3) en amont du dispositif (4) est comprise entre 1/3 et 1/8 de la face terminale d'attaque (4E) du dispositif (4).
EP01951537A 2000-05-30 2001-05-30 Dispositif pour deshuiler des gaz evacues du carter de vilebrequin d'un moteur a combustion interne Expired - Lifetime EP1285152B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20009605U 2000-05-30
DE20009605U DE20009605U1 (de) 2000-05-30 2000-05-30 Vorrichtung zur Entölung von Kurbelgehäuse-Entlüftungsgasen einer Brennkraftmaschine
PCT/EP2001/006159 WO2001092690A1 (fr) 2000-05-30 2001-05-30 Dispositif pour deshuiler des gaz evacues du carter de vilebrequin d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1285152A1 EP1285152A1 (fr) 2003-02-26
EP1285152B1 true EP1285152B1 (fr) 2004-02-25

Family

ID=7942153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01951537A Expired - Lifetime EP1285152B1 (fr) 2000-05-30 2001-05-30 Dispositif pour deshuiler des gaz evacues du carter de vilebrequin d'un moteur a combustion interne

Country Status (8)

Country Link
US (1) US6505615B2 (fr)
EP (1) EP1285152B1 (fr)
JP (1) JP4928707B2 (fr)
KR (1) KR100531697B1 (fr)
BR (1) BR0106708B1 (fr)
DE (2) DE20009605U1 (fr)
ES (1) ES2214433T3 (fr)
WO (1) WO2001092690A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108835A1 (fr) 2004-05-05 2005-11-17 Hengst Gmbh & Co. Kg Ensemble soupape monte dans un reniflard de carter de vilebrequin
DE202005009990U1 (de) * 2005-06-25 2006-11-02 Hengst Gmbh & Co.Kg Vorrichtung zum Abscheiden von Ölteilchen aus dem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine
WO2011147880A1 (fr) 2010-05-26 2011-12-01 Hengst Gmbh & Co. Kg Soupape de limitation de pression d'un dispositif pour purger le carter de vilebrequin d'un moteur à combustion interne et dispositif équipé d'une telle soupape de limitation de pression
DE102011100239A1 (de) 2011-05-02 2012-11-08 Mann + Hummel Gmbh Umgehungsvorrichtung eines Kurbelgehäuseentlüftungssystems
DE102016100419A1 (de) 2016-01-12 2017-07-13 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors
WO2017174706A1 (fr) * 2016-04-06 2017-10-12 Reinz-Dichtungs-Gmbh Dispositif de séparation des gouttelettes d'huile et/ou du brouillard d'huile
DE102018211760A1 (de) 2018-07-13 2020-01-16 BRUSS Sealing Systems GmbH Ölabscheidevorrichtung für die Kurbelgehäuseentlüftung eines Verbrennungsmotors
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

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0207935A (pt) * 2001-03-07 2004-03-02 Hengst Gmbh & Co Kg Dispositivo para a evacuação de ar do carter de uma máquina de combustão interna
DE20118388U1 (de) * 2001-11-13 2003-03-27 Hengst Gmbh & Co Kg Einrichtung für die Kurbelgehäuse-Entlüftung einer Brennkraftmaschine
FR2835884B1 (fr) * 2002-02-12 2005-03-18 Valeo Thermique Moteur Sa Procede de controle de la temperature de gaz admis dans un moteur de vehicule automobile, echangeur et dispositif de gestion de la temperature de ces gaz
DE10251677A1 (de) * 2002-11-07 2004-05-19 Mann + Hummel Gmbh Zyklonabscheider
ITRE20030035A1 (it) * 2003-04-09 2004-10-10 Ufi Filters Spa "dispositivo separatore di fluidi di diversa densita'"
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WO2001092690A1 (fr) 2001-12-06
JP4928707B2 (ja) 2012-05-09
US20020100465A1 (en) 2002-08-01
ES2214433T3 (es) 2004-09-16
EP1285152A1 (fr) 2003-02-26
KR100531697B1 (ko) 2005-11-29
BR0106708B1 (pt) 2009-05-05
KR20020079723A (ko) 2002-10-19
US6505615B2 (en) 2003-01-14
DE20009605U1 (de) 2001-10-18
JP2003535252A (ja) 2003-11-25

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