EP1094204A1 - Dispositif de ventilation avec un separateur d'huile pour moteur a combustion interne - Google Patents

Dispositif de ventilation avec un separateur d'huile pour moteur a combustion interne Download PDF

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Publication number
EP1094204A1
EP1094204A1 EP00120192A EP00120192A EP1094204A1 EP 1094204 A1 EP1094204 A1 EP 1094204A1 EP 00120192 A EP00120192 A EP 00120192A EP 00120192 A EP00120192 A EP 00120192A EP 1094204 A1 EP1094204 A1 EP 1094204A1
Authority
EP
European Patent Office
Prior art keywords
separator
venting device
oil
lower housing
housing wall
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
EP00120192A
Other languages
German (de)
English (en)
Other versions
EP1094204B1 (fr
Inventor
Frank Schomann
Volker Cornelius
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1094204A1 publication Critical patent/EP1094204A1/fr
Application granted granted Critical
Publication of EP1094204B1 publication Critical patent/EP1094204B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01M13/02—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
    • 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
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
    • 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

Definitions

  • the invention relates to a ventilation device with an oil separator for a crankcase an internal combustion engine, the oil separator essentially in the Cylinder head cover is integrated and consists of a housing that has an inside Flow labyrinth, one that is operatively connected to the crankcase Inlet opening, one connected to the intake system of the internal combustion engine Intake and one in the installation position at the geodetic low point of the housing arranged arranged oil leak.
  • Venting devices for the crankcase of an internal combustion engine perform the so-called. Blow-by gases ", which get from the combustion chambers into the crankcase, back into the intake tract. For this flow movement, the pressure difference between the pressure in the crankcase and the negative pressure in the intake tract of the internal combustion engine is used. However, the blow-by gases are included
  • oil separators are assigned to the ventilation device.
  • a ventilation device with an integrated oil separator is known from EP 471 886 A1.
  • the oil separator has a housing with an internal flow labyrinth. The labyrinth is formed by webs that overlap in sections, an inlet opening, a connection piece connected to the intake system of the internal combustion engine and an oil outlet are arranged on the housing.
  • This device is basically for separating the blow-by gases into a gas fraction and a liquid portion suitable.
  • a high efficiency of the separation of gas and oil sought requires one in the solution EP 471 886 A1 large vertical expansion of the flow baffles. However, this causes one Increase in flow resistance. At the same time, more space is required, which is hardly available, at least in the case of compact cylinder head designs.
  • the oil separator On the oil separator according to DE 197 15 061 A1 there are an inlet opening for the blow-by gases and an intake manifold provided with the intake system of the Internal combustion engine is connected.
  • the oil separator has a first one, towards one Motor longitudinal axis from the entrance to the oil outlet and a further slope, in Slope running in the direction of a motor transverse axis. At the geodesic low of The oil outlet is located on both slopes.
  • the vertical height can be generic Oil separators can be advantageously reduced, so that an extensive arrangement in the Cylinder head cover is possible.
  • this advantageous size requires one Functional disadvantage: At least very small oil particles are only caused by the labyrinthine flow not effectively torn out of the blow-by gases and consequently first enter the intake tract of the internal combustion engine and subsequently in the combustion chamber.
  • An effective oil mist separation is an important criterion here in order to meet future emissions standards. This Requirement can be done with a maze-like flow, as in Oil separator according to DE 197 15 061 A1 is not proposed.
  • the object of the invention is an oil separator integrated in the cylinder head cover to create a largely complete separation of the blow-by gases into one Gas content and guaranteed in a liquid portion.
  • a effective separation of very small oil particles can be achieved.
  • the ventilation device shown for the crankcase of an internal combustion engine has an oil separator.
  • the oil separator consists of a housing 1.
  • Am Housing 1 has an inlet opening 2.
  • the entry opening 2 stands with the - in the drawing not shown in detail - crankcase in operative connection.
  • At the Housing 1 also has an outlet opening 3. This opening is with the Intake system of the internal combustion engine connected and consequently acts as an intake port 3.
  • the housing 1 has an oil outlet 4.
  • the oil outlet 4 is such arranged that it is in the installed position of the oil separator at the geodetic low point of the housing 1 is located.
  • a pre-separator 5 In the housing 1 are one behind the other in the flow direction a pre-separator 5, an agglomerator 6 and a fine separator 7 are arranged horizontally.
  • the pre-separator 5 is designed as a labyrinth and has a plurality of vertical webs 51 on. These webs 51 are alternately on the upper and on the lower Supported inner wall of the housing 1. Here, the webs 51, which are in the installed position are supported on the lower wall, in the transition area between web 51 and wall at least one through opening 52.
  • the agglomerator 6 consists of a Metal or plastic mesh, preferably made of a stainless steel mesh. The knitted mesh is held between projections 61 which are on the inner wall of the Housing 1 are designed. In this case, the projections 61 indicate the position of installation the lower wall are supported, in the transition area from projection 61 and lower Housing wall at least one through opening 62.
  • the fine separator 7 also consists of a metal or plastic mesh knit This mesh knit is held between projections 71 which are on the inner wall of the housing 1st are designed.
  • the projections 71, which are in the installed position on the lower Wall are supported in the transition area from projection 71 and lower Housing wall at least one through opening 72.
  • Gap 8 In this Gap 8 is at least one vertical web 81 as a further flow baffle designed. If several webs 81 are provided, these webs 81 are each alternately supported on the upper and on the lower inner wall of the housing 1. Here, the webs 81, which are supported in the installed position on the lower wall, in Transition area of web 81 and lower housing wall at least one Through opening. However, in the exemplary embodiment shown there is only one Web 81 shown, which is also supported on the upper inner wall of the housing 1.
  • the oil separation will be further improved, if behind the Fine separator 7, a residual separator 9 is arranged.
  • the residual separator 9 is similar designed as the pre-separator 5 as a labyrinth with a plurality of vertical webs 91.
  • the residual separator 9 is not over the entire height of the housing 1 designed. Rather, an intermediate wall 10 is provided, which with its underside acts as a roof-shaped boundary of the residual separator 9. The top this intermediate wall 10 determines the contour of the flow path in the section between the residual separator 9 and the intake manifold 3.
  • the webs 91 of the Residual separators 9 are alternately on the intermediate wall 10 and on the lower Supported inner wall of the housing 1.
  • the webs 91, which are in the installed position are supported on the lower wall of the housing 1, in the transition area from the web 91 and lower housing wall at least one through opening 92.
  • the oil outlet 4 can be connected via a valve to an oil collection container which is arranged in the crankcase and its capacity is at least one Corresponds to the vehicle's fuel cycle.
  • the oil outlet 4 is preferably - like also shown in the drawing - via a channel 11 with an oil pocket 12 connected, which is configured in the cylinder head. It is for functionality expedient that the oil outlet 4 opposite front opening of the channel 11 opens into the oil pocket 12 below the liquid level.
  • the housing 1 When the internal combustion engine is operating, the housing 1 is connected to the intake port 3 Vacuum applied. Due to the pressure difference compared to the crankcase the blow-by gases first enter the pre-separator 5 via the inlet opening 2.
  • the webs 51 cause a multiple flow deflection. By in the Centrifugal force occurring at deflection points becomes the first oil particles from the gas-oil mixture deposited. Additional oil particles are found when the mixture hits the webs 51 separated. In the further flow path remain in the mesh of the Agglomerators 6 smallest oil particles hang, which combine to form larger particles.
  • the passage cross section is determined by the selected packing density of the metal or Plastic knitted mesh determined. The passage cross section (i.e. the pore size) determines the size of the oil particles to be formed. Once these particles are sufficient Have reached size, they are due to the negative pressure from the Agglomerator 6 ripped out.
  • the blow-by gas is completely composed of oil components cleaned and is as air through the intake manifold 3 in the intake tract Internal combustion engine led.
  • the separated oil particles first run through the acting gravity on the webs 51, 81 and 91 and on the metal or Knitted plastic mesh from agglomerator 6 and fine separator 7 to the lower one Inner wall of the housing 1 down.
  • the Oil particles then through the openings 52, 62, 72 and 92 to the oil outlet 4, which is arranged at the geodetic low point of the housing 1. Via the oil channel 11 and the oil bag 12 is the separated oil back in the oil circuit Internal combustion engine available.
  • the oil separator according to the invention can be used for various types with little effort Internal combustion engines are modified. Due to the detachable arrangement of the knitted nails of agglomerator 6 and fine separator 7 is a quick adjustment to the respective Operating conditions possible. There are special advantages if all Components in a common assembly, preferably in a common Housing 1 are arranged. This assembly can be inside the Crankcase cover are used so that easy interchangeability and easy maintenance is guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP00120192A 1999-10-22 2000-09-22 Dispositif de ventilation avec un separateur d'huile pour moteur a combustion interne Expired - Lifetime EP1094204B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19951028 1999-10-22
DE19951028A DE19951028A1 (de) 1999-10-22 1999-10-22 Entlüftungsvorrichtung mit Ölabscheider für ein Kurbelgehäuse einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1094204A1 true EP1094204A1 (fr) 2001-04-25
EP1094204B1 EP1094204B1 (fr) 2004-12-29

Family

ID=7926597

Family Applications (1)

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EP00120192A Expired - Lifetime EP1094204B1 (fr) 1999-10-22 2000-09-22 Dispositif de ventilation avec un separateur d'huile pour moteur a combustion interne

Country Status (3)

Country Link
EP (1) EP1094204B1 (fr)
AT (1) ATE286201T1 (fr)
DE (2) DE19951028A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099257A1 (fr) * 2001-06-07 2002-12-12 Robert Bosch Gmbh Dispositif de separation d'huile pour gaz de carter de vilebrequin de moteur a combustion interne
FR2867227A1 (fr) * 2004-03-02 2005-09-09 Skf Ab Separateur d'huile
CN101498234B (zh) * 2009-03-09 2011-03-16 盐城兴动机械有限公司 内燃机曲轴箱呼吸装置
CN113272531A (zh) * 2019-01-23 2021-08-17 道依茨股份公司 气缸盖
CN113738475A (zh) * 2021-08-26 2021-12-03 宁海县雄达模塑有限公司 一种发动机油气分离器改进结构

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7080636B2 (en) 2003-05-05 2006-07-25 Dichtungstechnik G. Bruss Gmbh & Co. Kg Oil separating device for a combustion engine
DE10320215B4 (de) * 2003-05-05 2005-04-21 Dichtungstechnik G. Bruss Gmbh & Co. Kg Ölabscheidevorrichtung für eine Brennkraftmaschine
DE102006008516A1 (de) * 2006-02-23 2007-08-30 Fev Motorentechnik Gmbh Zylinderkopf einer Brennkraftmaschine
DE102014004109B4 (de) * 2014-03-21 2017-05-24 Mtu Friedrichshafen Gmbh Ölvorabscheider
DE102014019144A1 (de) 2014-12-19 2016-06-23 Daimler Ag Kurbelgehäuseentlüftung für eine Verbrennungskraftmaschine, insbesondere eines Kraftwagens
DE102017207865A1 (de) * 2017-05-10 2018-11-15 Mahle International Gmbh Turboladerentlüftungseinrichtung
DE102017207869A1 (de) * 2017-05-10 2018-11-15 Mahle International Gmbh Turboladerentlüftungseinrichtung
DE102017207868A1 (de) * 2017-05-10 2018-11-15 Mahle International Gmbh Turboladerentlüftungseinrichtung
DE102019001025B4 (de) * 2019-02-12 2022-06-30 Deutz Aktiengesellschaft Brennkraftmaschine mit einer offenen Kurbelgehäuseentlüftung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1141094A (fr) * 1956-01-13 1957-08-26 Renault Dispositif de filtre pour carters de moteurs thermiques
US4602595A (en) * 1984-03-01 1986-07-29 Aisin Seiki Kabushiki Kaisha Oil separator for internal combustion engine
US4627406A (en) * 1984-12-05 1986-12-09 Kabushiki Kaisha Tsuchiya Seisakusho Oil separator for recycled blow-by gas
US4723529A (en) * 1985-07-19 1988-02-09 Toyota Jidosha Kabushiki Kaisha Oil separator for a blowby gas ventilation system of an internal combustion engine
EP0471886A1 (fr) 1989-02-28 1992-02-26 Yamaha Hatsudoki Kabushiki Kaisha Système de ventilation pour un moteur d'automobile à combustion interne
DE19621935A1 (de) * 1996-05-31 1997-12-04 Daimler Benz Ag Entlüftungssystem für Kurbelgehäuse, insbesondere von Brennkraftmaschinen
DE19700733A1 (de) * 1997-01-11 1998-07-23 Bosch Gmbh Robert Kurbelgehäuse-Entlüftung mit integrierten Zusatzfunktionen
DE19715061A1 (de) 1997-04-11 1998-10-15 Daimler Benz Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569323A (en) * 1983-07-25 1986-02-11 Aisin Seiki Kabushiki Kaisha Oil separator
DE3512713A1 (de) * 1985-04-09 1986-10-09 Klöckner-Humboldt-Deutz AG, 5000 Köln Zylinderkopfhaube aus einem kunststoffmaterial
DE3910559A1 (de) * 1989-04-01 1990-10-04 Bayerische Motoren Werke Ag Oelabscheider mit labyrinthartiger stroemungsfuehrung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1141094A (fr) * 1956-01-13 1957-08-26 Renault Dispositif de filtre pour carters de moteurs thermiques
US4602595A (en) * 1984-03-01 1986-07-29 Aisin Seiki Kabushiki Kaisha Oil separator for internal combustion engine
US4627406A (en) * 1984-12-05 1986-12-09 Kabushiki Kaisha Tsuchiya Seisakusho Oil separator for recycled blow-by gas
US4723529A (en) * 1985-07-19 1988-02-09 Toyota Jidosha Kabushiki Kaisha Oil separator for a blowby gas ventilation system of an internal combustion engine
EP0471886A1 (fr) 1989-02-28 1992-02-26 Yamaha Hatsudoki Kabushiki Kaisha Système de ventilation pour un moteur d'automobile à combustion interne
DE19621935A1 (de) * 1996-05-31 1997-12-04 Daimler Benz Ag Entlüftungssystem für Kurbelgehäuse, insbesondere von Brennkraftmaschinen
DE19700733A1 (de) * 1997-01-11 1998-07-23 Bosch Gmbh Robert Kurbelgehäuse-Entlüftung mit integrierten Zusatzfunktionen
DE19715061A1 (de) 1997-04-11 1998-10-15 Daimler Benz Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099257A1 (fr) * 2001-06-07 2002-12-12 Robert Bosch Gmbh Dispositif de separation d'huile pour gaz de carter de vilebrequin de moteur a combustion interne
US6811586B2 (en) 2001-06-07 2004-11-02 Robert Bosch Gmbh Oil separating device for crankshaft gases of an internal combustion engine
FR2867227A1 (fr) * 2004-03-02 2005-09-09 Skf Ab Separateur d'huile
US7415953B2 (en) 2004-03-02 2008-08-26 Ab Skf Oil separator
CN101498234B (zh) * 2009-03-09 2011-03-16 盐城兴动机械有限公司 内燃机曲轴箱呼吸装置
CN113272531A (zh) * 2019-01-23 2021-08-17 道依茨股份公司 气缸盖
CN113272531B (zh) * 2019-01-23 2023-09-01 道依茨股份公司 内燃机
CN113738475A (zh) * 2021-08-26 2021-12-03 宁海县雄达模塑有限公司 一种发动机油气分离器改进结构

Also Published As

Publication number Publication date
DE50009091D1 (de) 2005-02-03
DE19951028A1 (de) 2001-04-26
ATE286201T1 (de) 2005-01-15
EP1094204B1 (fr) 2004-12-29

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