WO2016119768A1 - Moteur a combustion interne pourvu retour d'huile comprenant un conduit d'huile - Google Patents

Moteur a combustion interne pourvu retour d'huile comprenant un conduit d'huile Download PDF

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Publication number
WO2016119768A1
WO2016119768A1 PCT/DE2015/100516 DE2015100516W WO2016119768A1 WO 2016119768 A1 WO2016119768 A1 WO 2016119768A1 DE 2015100516 W DE2015100516 W DE 2015100516W WO 2016119768 A1 WO2016119768 A1 WO 2016119768A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
internal combustion
combustion engine
collection
collection point
Prior art date
Application number
PCT/DE2015/100516
Other languages
German (de)
English (en)
Inventor
Ralf Siemer
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
Priority to CN201580077040.9A priority Critical patent/CN107429583B/zh
Priority to EP15831045.8A priority patent/EP3250797B1/fr
Publication of WO2016119768A1 publication Critical patent/WO2016119768A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—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
    • F01M11/0004—Oilsumps
    • F01M2011/005—Oilsumps with special anti-turbulence means, e.g. anti-foaming means or intermediate plates
    • 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

Definitions

  • the invention relates to an internal combustion engine with a cylinder crankcase, a
  • Oil pan which is filled in operation to an oil level with oil, an oil pan upper part with at least one passage opening and at least one oil channel having, the return of oil, in particular from the oil separation in the oil pan serving oil return is associated.
  • DE 100 26 113 B4 also describes an internal combustion engine with an oil pan upper part arranged between a crank chamber and an oil pan, which is held between a cylinder crankcase and an adjoining part of an oil pan.
  • An oil channel runs in such a way that the oil returned from the cylinder head is led into the oil sump below the oil level.
  • blow-by means in an internal combustion engine the gas flowing past the piston rings during compression.
  • an oil separator is achieved that may still be reflected in the gas flowing through the gas outlet from the cyclone, located oil droplets in the region of the enlarged cross-section gas line section on the surfaces and flow from there under gravity to ⁇ lableitkanal through which the oil either is passed directly to the oil sump of the internal combustion engine or first to the oil outlet and from there, together with the already separated in the cyclone oil to the oil sump of the internal combustion engine.
  • the ⁇ labscheidegrad is particularly high and that neither oil mist nor occasionally get larger drops of oil in the air intake tract of the internal combustion engine.
  • Crankcase ventilation gas of an internal combustion engine in the interior of the cyclone is offset in this in a helical rotary flow, in which the entrained oil droplets due to centrifugal forces are carried to the outside and precipitate on the inner wall of the cyclone.
  • the oil outlet at the lower end of the cyclone leads from the oil collection funnel to the oil sump of the internal combustion engine.
  • the oil separator comprises at least one cyclone, one connected to the crankcase of the internal combustion engine
  • Gas inlet a gas outlet connected to the air intake tract of the internal combustion engine and an oil outlet connected to the oil sump of the internal combustion engine, wherein the gas outlet protrudes as a dip tube through a top closing the cyclone in the cyclone interior.
  • the oil does not flow to the oil sump arranged at the lowest level of the oil system, but collects at other points in the oil system.
  • the cause of this may be, for example, fast cornering, whereby the oil is pressed to the outside and thereby additionally a gas pressure is built up in the oil passage, which counteracts the unimpeded outflow of the oil.
  • the invention has the object, an internal combustion engine of the type mentioned in such a way that in particular driving dynamics caused pressure fluctuations in the oil line system does not lead to a deterioration of the oil flow in the oil channel.
  • an internal combustion engine in which the oil channel has a collection point, which receives a free passage of the oil passage occluding oil volume during operation, wherein the collection point is arranged such that an oil level of the oil pan in the direction of gravity below the collection level, ie geodesically deeper than the collection level of the oil volume is in the collection point.
  • the oil channel is partially designed as a collection point or is connected to such a collection point in which collects an oil volume that does not flow into the oil pan even with strong driving dynamics and which closes the free passage of the oil channel, is also the gas exchange between the sections in
  • Essential for the invention is a geodetically above the oil inlet, in particular above a floor level of the collection point arranged oil drain, the collecting point receives a line of the oil channel occluding oil volume, the collection level is above the oil level of the oil pan.
  • a particularly advantageous embodiment of the invention is also achieved in that the collection point has a bent pipe section with an oil inlet and an oil drain, which include between them a pipe bend section in a geodetically lower position.
  • the oil channel could have a pipe bend between two horizontally extending regions which reaches a lower region.
  • the collection point is bent in an S-shape
  • the collection point has an oil collection container equipped with a collection level defining oil drain, and that the oil passage as a dip tube has executed portion which lies with its opening below the collection level, that is immersed in the oil volume.
  • Olsammel useder set and can be easily adapted to different internal combustion engines.
  • the Olsammel relier may be equipped in an open design with an overflow, or in a closed design with at least one outlet opening as an oil drain, which may optionally be closed.
  • a plurality of oil passages each with at least one dip tube, can lead into a common oil collection container and submerge into the collecting volume.
  • the space required and the design effort to realize the invention are reduced.
  • the oil volume which is required in the collection point and, for example, can not be completely removed even when changing the oil is reduced to a minimum compared with several separate collection points.
  • the oil passage is arranged concentrically to a Olsammel sampleser the collection point.
  • the efficiency can be further increased by arranging several collection points in cascade such that the oil drain of a first collection point leads into an oil supply of a second collection point, whereby the collection points can be flowed through in a series arrangement.
  • the oil feed of a second collection point lies in the direction of gravity below an oil drain of a first collection point.
  • the collection point could be arranged outside the internal combustion engine and connected to it by suitable lines.
  • an embodiment is particularly simple in which the collection point is arranged inside the cylinder crankcase, in particular within the space defined by the oil sump.
  • it is particularly useful if the effective oil column as geodesic
  • Height difference between the oil inlet and the oil drain is at least 100 mm.
  • FIG. 1 shows a cross section through an internal combustion engine with a cylinder crankcase and an oil return, which is associated with a collecting point exhibiting oil channel.
  • FIG. 3 shows a perspective view of the oil pan bottom part shown in FIG. 2 with the two collection points;
  • Fig. 4 is a perspective view of the oil pan base with an oil planer
  • FIG. 5 shows a variant of a collection point with an S-shaped bent pipe section.
  • Fig. 6 shows a further variant of a collection point with a coaxial to the oil inlet
  • FIG. 7 shows a simplified variant of the collection point shown in FIG. 4 with two dip tubes opening into the same oil collection container
  • FIG. 8 shows a variant of a collection point with two concentric oil collecting containers.
  • FIG. 1 shows, in a very simplified schematic representation, a cross section through an internal combustion engine 1 with a cylinder crankcase 2 and one below a cylinder crankcase 2
  • the oil pan 4 comprises an adapted to the rotational circle of the crank mechanism 3 Olwannenoberteil 5 and a lower pan part 6, which is filled during operation of the internal combustion engine 1 to an oil level 7 with oil 8.
  • Olwannenoberteil 5 is equipped with a plurality of passage openings 9, each of which an oil passage 10 is assigned to return the oil 8 in the oil pan 4, for better clarity, only one example of a possible arrangement is shown.
  • oil passage 10 is provided below the oil pan upper part 5 as an oil retaining cup
  • Collection point 11 is provided, in which a running as a dip tube 12 portion of the oil passage 10 to below a collecting level 13 of the oil volume in the collection point 1 1 dips.
  • a running as a dip tube 12 portion of the oil passage 10 to below a collecting level 13 of the oil volume in the collection point 1 1 dips.
  • the free passage of the oil passage 10 and in particular prevents undesirable compensation of possible pressure differences between the gas volume within the sump 4 and the gas volume within the cylinder crankcase 2, which otherwise by a flow of oil directed counter to the gas flow reliable Repatriation of the oil 8 could complicate.
  • the collection point 11 is designed such that the oil level 7 in the oil pan 4 in the direction of gravity is always lower than the collection level 13 of the oil volume in the collection point 11.
  • Figure 2 shows a Olwannenoberteil 5 and an oil pan bottom part 6 of the internal combustion engine 1 with two collection points 1 1 in a sectional side view. As can be seen, the oil passes through an oil passage opening 9 of a respective collecting point 11
  • the oil reservoir 25 each have different collection levels 13, from which flows over from the oil and flows into the oil pan 4, in which the oil collects to an oil level 7.
  • FIG. 3 additionally shows the oil pan bottom 6 shown in FIG. 2 with the two collection points 11.
  • the two collection points 11 are connected to form a structural unit and can be fixed in the lower part of the oil pan 6 without problems.
  • a further variant of a collection point 24 can be seen in Figure 4, in which two separate dip tubes 12 are connected to form a structural unit.
  • a first exchange tube 12 ' serves as a coarse oil discharge of an old passage opening 9 in an oil planer 29.
  • the further dip tube 12 "serves for the fine oil return of a collection channel (not further shown.)
  • Both dip tubes 12', 12" open into an oil collection container 25, the respective oil volumes being separated by a
  • Partition 30 are separated. When the maximum collection level 13 is exceeded, the oil flows into the oil pan 4 or into the adjacent collection area.
  • FIG. 5 shows a variant of a collection point 15 with an S-shaped curve of the oil channel 10, wherein the oil volume is collected in a pipe bend section 16 arranged in a geodetically lower position, that of an oil inlet 17 and a oil inlet 17 running parallel to it Oil drain 18 is included and so always remains filled with oil according to the principle of communicating pipes, thus making the passage of gases at least difficult.
  • the pipe bend portion 16 is integrally connected to the oil inlet 17 and the oil drain 18, but can also be designed separable or replaceable.
  • FIG. 6 a further variant of a collection point 19 is shown in Figure 6, in which the oil inlet 17 to the oil drain 18 is not only parallel, but also along a common axis 20 coaxial.
  • two flow guide elements 22, 23 are arranged such that, similar to the S-shaped pipe bend section 16 shown in FIG. 5, a flow deflection of the oil occurs, with the second flow guide element 23 simultaneously overflowing the oil Achieving a maximum collection level allows.
  • the first flow guide 22 dips into the collecting volume. Due to the coaxial arrangement, this variant can be used without problems even if the structural conditions of the structure are essentially unchanged
  • Internal combustion engine 1 realized or even with existing internal combustion engine. 1
  • FIG 7 a simplified embodiment of the collection point shown in Figure 4 24 is shown with two independent dip tubes 12, which open into the same oil reservoir 25, wherein a respective, designed as an oil inlet 17 opening in a
  • Submersible tube section below a collecting level 13 in the collection point 24 is located.
  • the oil collecting container 25 can be surrounded by a further oil collecting container 25 'on the circumference.
  • the upper edge 14 of the inner oil collecting container 25 is higher than the edge 14 'of the inner oil collecting container 25 enclosing outer oil collection container 25'.
  • the oil feed 17 is embodied here by way of example as a pipe bend section 16, so that the supplied oil is first collected in the pipe bend section 16.
  • the oil flows over the upper edge 14 of the inner oil collecting container 25 and passes through an annular gap 27 between the inner oil collecting container 25 and the outer oil collecting container 25 'to an inlet opening 28 arranged in a region near the bottom of the outer oil collecting container 25' Intake port 28, indicated by an arrow, flows the oil into the outer oil reservoir 25 'and, when the edge 14' of the outer oil reservoir 25 'is reached, it can freely overflow, whereby the oil passes into the oil sump 4 shown in FIG.
  • the cascading arrangement of the oil reservoirs 25, 25 'in the concentric design is achieved by the additional overcoming of the geodetic height difference between the edge 14 of the inner oil reservoir 25 and the
  • Inlet opening 28 of the outer oil collecting container 25 'achieved a significant increase in efficiency and effective protection even large occurring during driving pressure differences, which also only a small space is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un moteur à combustion interne (1) qui comprend un carter d'huile (4) disposé au-dessous d'une transmission à manivelle (3). Pendant le fonctionnement du moteur à combustion interne (1), le carter d'huile (4) est rempli avec de l'huile (8) jusqu'à un niveau d'huile (7). L'élément supérieur (5) du carter d'huile est équipé d'une pluralité d'orifices de passage (9) à chacun desquels est associé un conduit d'huile (10) destiné à ramener l'huile (8) dans le carter d'huile (4). Dans le conduit d'huile (10), il est prévu au-dessous de l'élément supérieur (5) du carter d'huile un emplacement de collecte (11) dans lequel une partie du conduit d'huile (10), réalisée sous la forme d'un tube plongeur (12), pénètre jusqu'au-dessous d'un niveau de collecte (13) du volume d'huile dans l'emplacement de collecte (11). Ainsi, pendant le fonctionnement, le volume d'huile ferme, dans cet emplacement de collecte (11), le libre passage du conduit d'huile (10) et empêche notamment une compensation indésirable de différences de pression éventuelles entre le volume de gaz à l'intérieur du carter d'huile (4) et le volume de gaz à l'intérieur d'un carter de manivelle cylindrique (2) qui pourrait sinon entraver le retour fiable de l'huile (8) à cause d'un flux de gaz dirigé à l'opposé de l'écoulement d'huile. Pour cela, l'emplacement de collecte (11) est configuré de telle sorte que le niveau d'huile (7) dans le carter d'huile (4) est toujours situé plus bas que le niveau de collecte (13) du volume d'huile dans l'emplacement de collecte (11).
PCT/DE2015/100516 2015-01-30 2015-12-03 Moteur a combustion interne pourvu retour d'huile comprenant un conduit d'huile WO2016119768A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580077040.9A CN107429583B (zh) 2015-01-30 2015-12-03 具有配备油道的回油装置的内燃机
EP15831045.8A EP3250797B1 (fr) 2015-01-30 2015-12-03 Moteur a combustion interne pourvu retour d'huile comprenant un conduit d'huile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015101410.6 2015-01-30
DE102015101410.6A DE102015101410A1 (de) 2015-01-30 2015-01-30 Brennkraftmaschine mit einem einen Ölkanal aufweisenden Ölrücklauf

Publications (1)

Publication Number Publication Date
WO2016119768A1 true WO2016119768A1 (fr) 2016-08-04

Family

ID=55274938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/100516 WO2016119768A1 (fr) 2015-01-30 2015-12-03 Moteur a combustion interne pourvu retour d'huile comprenant un conduit d'huile

Country Status (4)

Country Link
EP (1) EP3250797B1 (fr)
CN (1) CN107429583B (fr)
DE (1) DE102015101410A1 (fr)
WO (1) WO2016119768A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020001339A1 (de) * 2020-03-02 2021-09-02 Deutz Aktiengesellschaft Motor mit Zylinderkurbelgehäuse und Ölrücklaufsammelrinne und Ölabstiegen

Citations (9)

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JPH01125808U (fr) * 1988-02-22 1989-08-28
WO2000068548A1 (fr) 1999-05-06 2000-11-16 Ing. Walter Hengst Gmbh & Co. Kg Separateur d'huile pour deshuiler les gaz de ventilation du carter de vilebrequin d'un moteur a combustion interne
DE102006029681A1 (de) * 2006-06-28 2008-01-03 Volkswagen Ag Baugruppe zur Ölrückführung an einer Brennkraftmaschine
US20080011264A1 (en) * 2006-07-11 2008-01-17 Toyota Jidosha Kabushiki Kaisha Oil return structure for internal combustion engine
EP1892390A2 (fr) * 2006-07-31 2008-02-27 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Moteur à combustion interne
JP2011032935A (ja) * 2009-07-31 2011-02-17 Daikyonishikawa Corp オイルパン
WO2012073725A1 (fr) * 2010-12-02 2012-06-07 アイシン精機株式会社 Structure de récupération d'huile pour moteurs
DE102011008537A1 (de) * 2011-01-13 2012-07-19 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Motorblock
DE10026113B4 (de) 2000-05-26 2013-07-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Brennkraftmaschine mit einem zwischen Kurbelraum und Ölwanne angeordneten Ölabweisteil

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DE4037803A1 (de) * 1990-02-28 1991-08-29 Volkswagen Ag Schmier- und/oder kuehloelversorgung fuer eine maschine, insbesondere eine brennkraftmaschine
DE4204522C1 (en) * 1992-02-15 1993-04-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De IC engine silencer with lower cover shell - has oil flow shell aperture opening into noise damping chamber
DE19644526C2 (de) * 1996-10-26 1999-11-18 Daimler Chrysler Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine
CN2315301Y (zh) * 1997-11-13 1999-04-21 韦升永 内燃机曲轴箱负压节约机油装置
DE10043795A1 (de) * 2000-09-06 2002-03-14 Daimler Chrysler Ag Brennkraftmaschine mit Kurbelgehäuseentlüftung
DE20310841U1 (de) * 2003-07-14 2004-11-25 Hengst Gmbh & Co.Kg Modul für eine Brennkraftmaschine
DE102005061477B4 (de) * 2005-12-22 2010-04-08 Audi Ag Vorrichtung zur Ölabscheidung
CN201133271Y (zh) * 2007-12-29 2008-10-15 广西玉柴机器股份有限公司 油气分离器的回油装置
DE102008058962A1 (de) * 2008-11-25 2010-05-27 Hengst Gmbh & Co.Kg Kurbelgehäuseentlüftungseinrichtung einer Brennkraftmaschine
DE102008060412B4 (de) * 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
JP5513925B2 (ja) * 2010-02-25 2014-06-04 本田技研工業株式会社 クランクケース構造

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01125808U (fr) * 1988-02-22 1989-08-28
WO2000068548A1 (fr) 1999-05-06 2000-11-16 Ing. Walter Hengst Gmbh & Co. Kg Separateur d'huile pour deshuiler les gaz de ventilation du carter de vilebrequin d'un moteur a combustion interne
DE10026113B4 (de) 2000-05-26 2013-07-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Brennkraftmaschine mit einem zwischen Kurbelraum und Ölwanne angeordneten Ölabweisteil
DE102006029681A1 (de) * 2006-06-28 2008-01-03 Volkswagen Ag Baugruppe zur Ölrückführung an einer Brennkraftmaschine
US20080011264A1 (en) * 2006-07-11 2008-01-17 Toyota Jidosha Kabushiki Kaisha Oil return structure for internal combustion engine
EP1892390A2 (fr) * 2006-07-31 2008-02-27 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Moteur à combustion interne
JP2011032935A (ja) * 2009-07-31 2011-02-17 Daikyonishikawa Corp オイルパン
WO2012073725A1 (fr) * 2010-12-02 2012-06-07 アイシン精機株式会社 Structure de récupération d'huile pour moteurs
DE102011008537A1 (de) * 2011-01-13 2012-07-19 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Motorblock

Also Published As

Publication number Publication date
EP3250797A1 (fr) 2017-12-06
CN107429583B (zh) 2019-12-03
EP3250797B1 (fr) 2020-11-25
CN107429583A (zh) 2017-12-01
DE102015101410A1 (de) 2016-08-04

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