EP3559419B1 - Moteur à combustion interne - Google Patents

Moteur à combustion interne Download PDF

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Publication number
EP3559419B1
EP3559419B1 EP17801593.9A EP17801593A EP3559419B1 EP 3559419 B1 EP3559419 B1 EP 3559419B1 EP 17801593 A EP17801593 A EP 17801593A EP 3559419 B1 EP3559419 B1 EP 3559419B1
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EP
European Patent Office
Prior art keywords
oil
cylinder head
internal combustion
combustion engine
return channel
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.)
Active
Application number
EP17801593.9A
Other languages
German (de)
English (en)
Other versions
EP3559419A1 (fr
Inventor
Matthias Kringels
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.)
Deutz AG
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Deutz AG
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Publication date
Application filed by Deutz AG filed Critical Deutz AG
Publication of EP3559419A1 publication Critical patent/EP3559419A1/fr
Application granted granted 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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • 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
    • F01M11/0004—Oilsumps
    • 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
    • F01M11/02—Arrangements of lubricant conduits
    • 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
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/023—Arrangements of lubricant conduits between oil sump and cylinder head
    • 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
    • F01M2013/0444—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with means for accommodating movement or position of engines
    • 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
    • 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 an internal combustion engine with a centrally arranged oil return.
  • Such internal combustion engines are known, for. B. from the DE 197 15 061 C2 , in which a venting device for a crankcase of an internal combustion engine is described, to which a cylinder head is attached, which is covered by a cylinder head cover, the venting device having an oil separator that is essentially integrated into the cylinder head cover and is provided with baffles, which is formed by a one-piece with the Cylinder head cover connected upper part and a bottom part is formed, wherein the oil separator has an inlet, an intake manifold connected to the intake system of the internal combustion engine and an oil outlet, and the chicanes of the oil separator are formed by webs of the upper part.
  • an internal combustion engine for a motor vehicle with an oil delivery device for supplying oil to lubrication points, with an oil pan being provided for collecting returning oil, with a separating device being provided in the oil pan, which divides the oil pan into a first and a second section, with a device for wet-sump lubrication with a wet-sump circuit connected to the first section, and a device for dry-sump lubrication with a dry-sump circuit connected to the second section, wherein the separating device has a check valve opening towards the first section with wet-sump lubrication.
  • a cyclone oil separator for the crankcase ventilation of internal combustion engines is known with an inlet nozzle for the oily crankcase air, which opens tangentially into a cyclone chamber in the separator housing, the cross section of the inlet nozzle being variable in order to produce an optimum pressure gradient or to achieve optimum separation.
  • the DE 31 22 851 A1 discloses crankcase ventilation of an internal combustion engine with a pot-shaped container mounted in the valve chamber on the rocker arm block, which is closed at the top in relation to the valve housing cover with the interposition of an elastic seal, the space in the container being connected on the one hand by the housing cover to the intake system of the internal combustion engine and on the other hand by a oppositely arranged opening is in communication with the valve chamber or with the crankcase.
  • the invention is based on the object of reliably ensuring the oil return in an internal combustion engine even in a corresponding inclined position.
  • an internal combustion engine which comprises at least one crankcase, at least one cylinder head, at least one cylinder head cover, at least one oil separator and at least one oil pan for collecting returning oil and at least one oil return channel connecting the oil separator and the oil pan, the oil return passage sloping outwardly toward and around a cylinder head bolt after entering the cylinder head, and the oil return passage is centrally located below the oil separator.
  • the oil separator is arranged in the cylinder head cover.
  • Another development of the invention provides that the oil separator has a bulkhead towards the clean air part.
  • the oil return channel is arranged at the lower end of the oil separator.
  • Another development of the invention provides that the oil return duct runs from the cylinder head cover into the cylinder head via at least one plug-in piece or an axial seal.
  • the oil return channel is part of the cylinder head gasket, so that the cylinder head gasket has oil-carrying properties.
  • the oil return channel is realized below the cylinder head gasket by means of a groove machined into the raw part contour of the crankcase and merges into a tube cross section running essentially perpendicularly in the direction of the oil pan.
  • a further development of the invention provides that the end of the oil return channel is provided with a check valve.
  • FIG 1 an internal combustion engine with a maximum inclined position alpha and an oil return channel 7 is shown.
  • the internal combustion engine has a crankcase 1, a cylinder head 2 and a cylinder head cover 3 arranged above the cylinder head 2, in which an oil separator 4 is arranged, which has a bulkhead 5 towards the clean air part.
  • the separated oil 6 is arranged in the oil separator 4 at the defined angle of inclination alpha in such a way that it just cannot overflow from the oil separator 4 .
  • the oil return passage 7 is arranged at a lower end of the oil separator and is led toward the oil pan on an outer side of the internal combustion engine.
  • figure 2 represents an internal combustion engine with a maximum inclined position alpha and two oil return channels 7.
  • the internal combustion engine has a crankcase 1, a cylinder head 2 and a cylinder head cover 3 arranged above the cylinder head 2, in which an oil separator 4 is arranged, which has a bulkhead 5 towards the clean air part having.
  • the separated oil 6 is arranged in the oil separator 4 at the defined angle of inclination alpha in such a way that it just cannot overflow from the oil separator 4 .
  • the oil return passages 7 are each arranged at a lower end of the oil separator and are led toward the oil pan on an outer side of the internal combustion engine.
  • FIG 3 an internal combustion engine is shown with a maximum inclined position beta and an oil return channel 7, the angle beta being greater than the angle alpha.
  • the internal combustion engine has a crankcase 1, a cylinder head 2 and a cylinder head cover 3 arranged above the cylinder head 2, in which an oil separator 4 is arranged, which has a bulkhead 5 towards the clean air part.
  • the separated oil 6 is arranged in the oil separator 4 at the defined angle of inclination beta in such a way that it just cannot overflow from the oil separator 4 .
  • the oil return channel 7 is arranged centrally under the oil separator 4 and is from the center of the cylinder head 2 in the direction of the cylinder head screw 8 to an outer side of the internal combustion engine towards the oil pan in such a way that the cylinder head screw 8 is partially surrounded by the returning oil, with the returning oil flowing away from the cylinder head screw and towards it in the area of the cylinder head gasket is led to the wall of the crankcase, z. B. in a for this purpose arranged in the crankcase 1 groove.
  • a check valve is arranged at the lower end of the oil return channel 7 .

Claims (8)

  1. Moteur à combustion interne, comprenant au moins un carter de vilebrequin (1), au moins une culasse (2), au moins un couvercle de culasse (3), au moins un séparateur d'huile (4) et au moins un carter d'huile pour collecter le retour d'huile, et au moins un canal de retour d'huile (7) reliant le séparateur d'huile (4) et la carter d'huile,
    dans lequel le canal de retour d'huile (7) s'étend après l'entrée dans la culasse (2) en oblique vers l'extérieur en direction et autour d'une vis de culasse (8),
    caractérisé en ce que le canal de retour d'huile (7) est disposé au milieu au-dessous du séparateur d'huile (4).
  2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que le séparateur d'huile (4) est disposé dans le couvercle de culasse (3).
  3. Moteur à combustion interne selon une ou plusieurs des revendications précédentes, caractérisé en ce que le séparateur d'huile (4) présente une cloison étanche (5) par rapport à la partie d'air pur.
  4. Moteur à combustion interne selon une ou plusieurs des revendications précédentes, caractérisé en ce que le canal de retour d'huile (7) est disposé à l'extrémité inférieure du séparateur d'huile (4).
  5. Moteur à combustion interne selon une ou plusieurs des revendications précédentes, caractérisé en ce que le canal de retour d'huile (7) est réalisé du couvercle de culasse (3) dans la culasse (2) par l'intermédiaire d'au moins une pièce enfichable ou d'un joint d'étanchéité axial.
  6. Moteur à combustion interne selon une ou plusieurs des revendications précédentes, caractérisé en ce que le canal de retour d'huile (7) fait partie d'un joint de culasse de sorte que le joint de culasse bénéficie de propriétés de conduction d'huile.
  7. Moteur à combustion interne selon une ou plusieurs des revendications précédentes, caractérisé en ce que le canal de retour d'huile (7) est réalisé au-dessous du joint de culasse au moyen d'une rainure incorporée dans le contour de pièce brute du carter de vilebrequin (1) et passe à une section transversale de tuyau s'étendant de manière substantiellement verticale en direction du carter d'huile.
  8. Moteur à combustion interne selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'extrémité du canal de retour d'huile (7) est munie d'un clapet antiretour.
EP17801593.9A 2016-12-20 2017-11-08 Moteur à combustion interne Active EP3559419B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016015111.0A DE102016015111B4 (de) 2016-12-20 2016-12-20 Brennkraftmaschine
PCT/EP2017/001297 WO2018114026A1 (fr) 2016-12-20 2017-11-08 Moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP3559419A1 EP3559419A1 (fr) 2019-10-30
EP3559419B1 true EP3559419B1 (fr) 2023-05-31

Family

ID=60421724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17801593.9A Active EP3559419B1 (fr) 2016-12-20 2017-11-08 Moteur à combustion interne

Country Status (5)

Country Link
US (1) US11111830B2 (fr)
EP (1) EP3559419B1 (fr)
CN (1) CN110088435B (fr)
DE (1) DE102016015111B4 (fr)
WO (1) WO2018114026A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6933700B2 (ja) * 2019-12-05 2021-09-08 本田技研工業株式会社 ヘッドカバー構造
US11548604B1 (en) * 2020-10-02 2023-01-10 Brunswick Corporation Marine engine crankcase cover with integral oil cooler

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703771C1 (de) * 1997-02-01 1998-06-25 Daimler Benz Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine

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DE3122851A1 (de) 1981-06-09 1982-12-30 Klöckner-Humboldt-Deutz AG, 5000 Köln Kurbelgehaeuseentlueftung einer brennkraftmachine
DE3128470C2 (de) 1981-07-18 1983-05-11 Bayerische Motoren Werke Ag, 8000 Muenchen Zyklonölabscheider
US4602595A (en) 1984-03-01 1986-07-29 Aisin Seiki Kabushiki Kaisha Oil separator for internal combustion engine
JP3166335B2 (ja) * 1992-10-08 2001-05-14 株式会社豊田自動織機製作所 内燃機関用の圧縮液化式オイルミスト凝結分離装置
DE19703770C1 (de) 1997-02-01 1998-07-23 Daimler Benz Ag Entlüftungsvorrichtung mit integriertem Ölabscheider für ein Kurbelgehäuse einer Brennkraftmaschine
DE19715061C2 (de) 1997-04-11 1999-01-21 Daimler Benz Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine
US6029638A (en) * 1997-11-07 2000-02-29 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine with dry sump lubricating system
GB9903614D0 (en) * 1999-02-18 1999-04-07 Perkins Engines Co Ltd Breather System
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WO2001065089A1 (fr) * 2000-02-29 2001-09-07 Bombardier-Rotax Gmbh Moteur a quatre temps a turbocompresseur
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JP4049006B2 (ja) 2003-04-24 2008-02-20 三菱自動車工業株式会社 シリンダヘッド構造
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WO2015068398A1 (fr) * 2013-11-08 2015-05-14 本田技研工業株式会社 Dispositif de séparation d'huile d'un moteur à combustion interne
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Also Published As

Publication number Publication date
CN110088435B (zh) 2021-07-27
US20200191029A1 (en) 2020-06-18
US11111830B2 (en) 2021-09-07
CN110088435A (zh) 2019-08-02
DE102016015111A1 (de) 2018-06-21
DE102016015111B4 (de) 2021-10-14
WO2018114026A1 (fr) 2018-06-28
EP3559419A1 (fr) 2019-10-30

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