EP1892390B1 - Moteur à combustion interne - Google Patents

Moteur à combustion interne Download PDF

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Publication number
EP1892390B1
EP1892390B1 EP07010762A EP07010762A EP1892390B1 EP 1892390 B1 EP1892390 B1 EP 1892390B1 EP 07010762 A EP07010762 A EP 07010762A EP 07010762 A EP07010762 A EP 07010762A EP 1892390 B1 EP1892390 B1 EP 1892390B1
Authority
EP
European Patent Office
Prior art keywords
oil
air
combustion engine
internal combustion
separating device
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 - Fee Related
Application number
EP07010762A
Other languages
German (de)
English (en)
Other versions
EP1892390A3 (fr
EP1892390A2 (fr
Inventor
Albrecht Reustle
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1892390A2 publication Critical patent/EP1892390A2/fr
Publication of EP1892390A3 publication Critical patent/EP1892390A3/fr
Application granted granted Critical
Publication of EP1892390B1 publication Critical patent/EP1892390B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status 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
    • 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
    • F01M13/00—Crankcase ventilating or breathing
    • 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
    • F01M2011/0033—Oilsumps with special means for guiding the return of oil into the sump
    • 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

Definitions

  • the invention relates to an internal combustion engine with a crankcase, in which a crankshaft is rotatably mounted, according to the closer defined in the preamble of claim 1.
  • a generic internal combustion engine is from the DE 44 24 248 C1 known.
  • the oil is pumped through extending within walls of the cylinder head pressure channels and adjoining longitudinal channels to within the crankcase arranged air-oil separation elements to separate the air from the oil flowing back into the oil pan.
  • the disadvantage here is the high casting complexity for creating the relatively long channels, the large footprint and the high drive power, which is needed for pumping the oil and for separating the air from the oil.
  • the DE 40 01 468 A1 describes an oil guide housing for an internal combustion engine in which trained as ribs oil planer are provided, with which the oil is planed from the connecting rod and returned via return ducts in the oil pan. By said construction, however, no separation of air from the oil pan recycled oil is possible.
  • the inventive one-piece design of the at least one air-oil separator with the ⁇ labstreif sexualen results in a very compact design these two parts, so that they can be integrated into the internal combustion engine without major problems. Due to the small distance of the air-oil separator from the ⁇ labstreif sexualen can also be dispensed with a pump, as is dominated by the prevailing in the air-oil separator high kinetic energy, the oil is stripped off and due to the density difference between air and oil an independent Oil separation takes place or is achieved. Another advantage of the solution according to the invention is that in the crankcase no additional channels or the like must be integrated, so that there is no additional casting technical effort.
  • At least one oil outlet opening of the air-oil separation device is located above the oil level of the oil pan in each driving state of the motor vehicle equipped with the internal combustion engine according to the invention, so that it is always ensured that the oil is returned freely and without resistance to the oil pan.
  • all oil outlet openings are arranged above the oil level adjusting in the oil sump.
  • the longitudinal axis of the air-oil separator around which the oil introduced rotates substantially parallel to the crankshaft, so additional space problems are prevented, since the air-oil separator in the direction of its longitudinal axis usually very is much larger than in a plane perpendicular to it. That is, the air-oil separator is installed horizontally, but the function of the same does not affect, since the oil is not due to gravity, but due to the high centrifugal force in the same passes.
  • each oil wiping device is associated with a connecting rod, and that each oil wiping device has two oil wiping openings arranged one behind the other in the direction of rotation of the crankshaft.
  • each ⁇ labstreifö réelle a narrowing Channel leads to the air-oil separator.
  • the flow rate of the oil is increased and it can be fed even faster to the air-oil separator in this way.
  • Fig. 1 shows an internal combustion engine 1 with a crankcase 2, mounted on the crankcase 2 cylinder heads 3 and the cylinder heads 3 in a conventional manner final cylinder head cover 4.
  • the internal combustion engine 1 is designed in the present case in boxer design, but it could also be in any other design be executed.
  • the crankcase 2 has in this case two crankcase halves 2a and 2b, between which a crankshaft 5 is mounted with a plurality of attached connecting rods 6 and performs in a conventional manner a rotational movement.
  • only one of the connecting rods 6 is shown, but the number of them coincides with the number of cylinders, not shown, of the internal combustion engine 1 and can thus vary almost as desired.
  • Below the crankcase 2 is an oil pan 7, in which the oil used for lubrication of the internal combustion engine 1 is added.
  • the internal combustion engine 1 thus has a wet sump lubrication.
  • the internal combustion engine 1 further comprises a plurality of ⁇ labstreif sexualen 8, which are used for stripping oil from the rotating crankshaft 5 and from the attached thereto and with the same rotating connecting rods 6 and thus freely herumspritzspritzendes or with the crankshaft 5 and prevent the connecting rods 6 in the form of an oil roller with rotating oil.
  • each ⁇ labstreif sexual 8 is assigned to a connecting rod 6, since a considerable amount of oil is carried by the connecting rods 6.
  • a connecting rod 6 in an internal combustion engine 1 with only one cylinder and consequently a connecting rod 6 so only one ⁇ labstreif sexual 8 would be provided.
  • Optionally could be dispensed with individual connecting rods 6 and the attachment of a ⁇ labstreif sexual 8.
  • the ⁇ labstreif sexualen 8 are integrally formed with a plurality of known as Swirlpot air-oil separation devices 9, in which the introduced from the crankshaft 5 and the connecting rods 6 stripped or planed oil is introduced and defoamed.
  • the oil scrapers 8 and the air-oil separators 9 are in Fig. 3 shown in more detail.
  • the ⁇ labstreif sexualen 8 additional cover elements 10 are assigned, which are preferably formed of sheet metal and prevent backflow of oil from the oil pan 7 in the crankcase 2.
  • the cover 10 also serve to attach the ⁇ labstreif sexualen 8 on the crankcase 2. It can be provided between the cones 6 associated ⁇ labstreif sexualen 8, the crank webs of the crankshaft 5 associated ⁇ labstreif recognizeden to achieve even better stripping of oil.
  • each ⁇ labstreif issued 8 two ⁇ labstreifö réelleen 11 which are arranged one behind the other in the rotational direction of the crankshaft 5 and adapted to the designated with a line 6a envelope of the connecting rod 6 in its movement.
  • each ⁇ labstreifö réelleen 11 each leading a narrowing channel 12 to the assigned in the present embodiment each ⁇ labstreif responded 8 air-oil separator 9 and enters at a respective oil inlet opening 13 in the respective air-oil separator 9 a.
  • the air-oil separation devices 9 have in the present case a substantially cylindrical housing 14 and its longitudinal axis 15 extends substantially parallel to the crankshaft. 5
  • the air-oil separator 9 has a substantially central, so on the longitudinal axis 15 thereof arranged Lucasabrios Gustav 16, through which the separated air from the oil can leave the housing 14.
  • the air discharge line 16 may extend more or less deeply into the housing 14 of the air-oil separator 9.
  • the entering into the housing 14 of the air-oil separator 9 oil moves due to the centrifugal force on the inner wall of the housing 14 along a helical path in the direction of the air discharge line 16 opposite oil outlet 17, which in Fig. 7 is shown schematically.
  • the movement of the oil in the direction of the oil outlet opening 17 can be assisted by a design of the channels 12 inclined in the direction of the same. Due to the lower density of the air, this leaves the circulating oil flow inwards and can therefore escape through the air discharge line 16. The oil, however, can leave any air-oil separator 9 at the oil outlet 17.
  • the oil outlet 17, as in Fig. 7 be seen, arranged so that they are in any driving condition of a vehicle equipped with the internal combustion engine 1 motor vehicle above a in Fig. 7 indicated oil level 18 is located in the oil pan 7.
  • a further line could also be led to a common oil outlet opening, which then likewise in each driving state of the equipped with the internal combustion engine 1 motor vehicle should be above the oil level 18 in the oil pan 7.
  • oil level 18 in the oil pan 7.
  • the vehicle position ie, horizontal, uphill, downhill or sideways oblique, arise in the oil pan 17 in Fig. 7 shown oil level 18.
  • Fig. 7 further shows a suction opening 19, which is spaced by at least one spacer 20 from the bottom of the oil pan 7.
  • an oil pump Via the suction opening 19, an oil pump, not shown, sucks the lubricating oil from the oil pan 7 and forwards it to the lubrication points inside the internal combustion engine 1.
  • the suction opening 19 should be in each driving state of the motor vehicle or at each vehicle position below the thereby adjusting oil level 18.
  • FIGS. 5 and 6 show an alternative embodiment of the air-oil separation devices 9.
  • a plurality of ⁇ labstreifvoriquesen 8 is associated with a common air-oil separator 9, which also has a cylindrical housing 14 whose longitudinal axis is substantially parallel to the crankshaft 5.
  • two air-oil separation devices 9 are provided, each associated with three connecting rods 6. Due to the higher expected volume of oil, the volume of the air-oil separators 9 is greater than that of in FIG. 3 and FIG. 4 illustrated embodiment, compared to the embodiment of Fig. 5 and Fig. 6 allows easier production. In contrast, the embodiment of FIG. 3 and FIG. 4 due to the smaller volumes of air-oil separators 9 more effective.

Landscapes

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

Claims (7)

  1. Moteur à combustion interne (1) comprenant un carter de vilebrequin (2) dans lequel est supporté à rotation un vilebrequin (5) avec au moins une bielle (6) montée sur celui-ci, des dispositifs de raclage d'huile du vilebrequin (5) en rotation, un carter d'huile (7) disposé sous le carter de vilebrequin (2) pour recueillir l'huile raclée par les dispositifs de raclage d'huile, et au moins un dispositif de séparation air-huile (9) pour séparer l'air de l'huile ramenée, les dispositifs de raclage d'huile (8) étant réalisés d'une seule pièce avec l'au moins un dispositif de séparation air-huile (9) et étant guidés jusqu'à une ouverture d'entrée d'huile (13) du dispositif de séparation air-huile (9), au moins une ouverture de sortie d'huile (17) de l'au moins un dispositif de séparation air-huile (9) étant disposée de telle sorte qu'elle se trouve dans chaque état de conduite d'un véhicule automobile équipé du moteur à combustion interne (1) au-dessus d'un niveau d'huile (18) dans le carter d'huile (7),
    caractérisé en ce que
    chaque dispositif de raclage d'huile (8) est associé à une bielle (6), et en ce que chaque dispositif de raclage d'huile (8) présente deux ouvertures de raclage d'huile (11) disposées dans le sens de rotation du vilebrequin (5) l'une derrière l'autre, un canal (12) se rétrécissant conduisant de chaque ouverture de raclage d'huile (11) jusqu'au dispositif de séparation air-huile (9), et l'au moins un dispositif de séparation air-huile (9) présentant un boîtier sensiblement cylindrique (14), et à son extrémité tournée vers l'ouverture d'entrée d'huile (13) étant disposée latéralement une conduite d'évacuation d'air centrale (16) et à son autre extrémité étant disposée latéralement l'ouverture de sortie d'huile (17).
  2. Moteur à combustion interne selon la revendication 1,
    caractérisé en ce que
    l'axe longitudinal (15) du dispositif de séparation air-huile (9), autour duquel tourne l'huile introduite, s'étend sensiblement parallèlement au vilebrequin (5).
  3. Moteur à combustion interne selon la revendication 1,
    caractérisé en ce que
    les canaux (12) débouchent tangentiellement dans le dispositif de séparation air-huile (9).
  4. Moteur à combustion interne selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    chaque dispositif de séparation d'huile (8) est associé à un dispositif de séparation air-huile (9).
  5. Moteur à combustion interne selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    plusieurs dispositifs de séparation d'huile (8) sont associés à un dispositif de séparation air-huile (9) commun.
  6. Moteur à combustion interne selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    des dispositifs de raclage d'huile supplémentaires respectifs sont associés aux flasques de vilebrequin du vilebrequin (5).
  7. Moteur à combustion interne selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce
    qu'entre le vilebrequin (5) et le carter d'huile (7) sont disposés des éléments de recouvrement (10) pour empêcher un reflux de l'huile hors du carter d'huile (7) jusque dans le carter de vilebrequin (2).
EP07010762A 2006-07-31 2007-05-31 Moteur à combustion interne Expired - Fee Related EP1892390B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006035888A DE102006035888A1 (de) 2006-07-31 2006-07-31 Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1892390A2 EP1892390A2 (fr) 2008-02-27
EP1892390A3 EP1892390A3 (fr) 2010-09-15
EP1892390B1 true EP1892390B1 (fr) 2012-04-25

Family

ID=38830393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07010762A Expired - Fee Related EP1892390B1 (fr) 2006-07-31 2007-05-31 Moteur à combustion interne

Country Status (5)

Country Link
US (1) US7472675B2 (fr)
EP (1) EP1892390B1 (fr)
JP (1) JP2008032009A (fr)
CN (1) CN101117904B (fr)
DE (1) DE102006035888A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8281758B2 (en) * 2005-08-03 2012-10-09 Etg Limited Engine lubrication method
GB0816562D0 (en) * 2008-09-11 2008-10-15 Rolls Royce Plc Lubricant scavenge arrangement
DE102008060411B4 (de) 2008-11-28 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102008060412B4 (de) 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102008060409B4 (de) * 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
RU2554433C2 (ru) * 2009-09-30 2015-06-27 Хитачи Коки Ко., Лтд. Четырехтактный двигатель, кусторез и моторизованный инструмент, оснащенный таким двигателем
DE102011120782A1 (de) 2011-12-09 2013-06-13 Volkswagen Aktiengesellschaft Brennkraftmaschine und Verfahren zum Betrieb einer Brennkraftmaschine
DE102015101410A1 (de) * 2015-01-30 2016-08-04 Volkswagen Ag Brennkraftmaschine mit einem einen Ölkanal aufweisenden Ölrücklauf
DE102015007909A1 (de) * 2015-06-20 2016-12-22 Man Truck & Bus Ag Schottwandkonstruktion mit integrierter Flüssigkeitsförderfunktion
DE102015118724A1 (de) * 2015-11-02 2017-05-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ölhobel zur Anordnung in einem Verbrennungsmotor sowie Verbrennungsmotor
JP2023049420A (ja) 2021-09-29 2023-04-10 本田技研工業株式会社 内燃機関

Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH05296018A (ja) * 1992-04-17 1993-11-09 Mitsubishi Oil Co Ltd 気泡除去装置内蔵型オイルパン

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JPH05296018A (ja) * 1992-04-17 1993-11-09 Mitsubishi Oil Co Ltd 気泡除去装置内蔵型オイルパン

Also Published As

Publication number Publication date
DE102006035888A1 (de) 2008-02-07
CN101117904B (zh) 2011-05-25
EP1892390A3 (fr) 2010-09-15
US7472675B2 (en) 2009-01-06
EP1892390A2 (fr) 2008-02-27
US20080022964A1 (en) 2008-01-31
JP2008032009A (ja) 2008-02-14
CN101117904A (zh) 2008-02-06

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