EP1065350B1 - Moteur à combustion avec un dispositif d'aération - Google Patents

Moteur à combustion avec un dispositif d'aération Download PDF

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Publication number
EP1065350B1
EP1065350B1 EP00110793A EP00110793A EP1065350B1 EP 1065350 B1 EP1065350 B1 EP 1065350B1 EP 00110793 A EP00110793 A EP 00110793A EP 00110793 A EP00110793 A EP 00110793A EP 1065350 B1 EP1065350 B1 EP 1065350B1
Authority
EP
European Patent Office
Prior art keywords
line
breather device
throttle
turbocharger
combustion engine
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
EP00110793A
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German (de)
English (en)
Other versions
EP1065350A2 (fr
EP1065350A3 (fr
Inventor
Jürgen KLING
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 EP1065350A2 publication Critical patent/EP1065350A2/fr
Publication of EP1065350A3 publication Critical patent/EP1065350A3/fr
Application granted granted Critical
Publication of EP1065350B1 publication Critical patent/EP1065350B1/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

Definitions

  • the invention relates to an internal combustion engine with a venting device according to the preamble of patent claim 1.
  • crankcase ventilation for an internal combustion engine DE 197 09 910 A1
  • this crankcase breather is provided with a part-load breather and a full-load vent, and it has chokes.
  • DE 22 09 909 C2 a device for preventing lubricant losses in an exhaust gas turbocharger in which a vent line is provided between a lubricant space and a suction line.
  • the object of the invention is to make a venting device for an internal combustion engine with turbocharger simple, but highly effective.
  • the advantages achieved by the invention are to be seen in the fact that the combination of the crankcase breather and the turbocharger vent creates an excellently acting venting device of a turbocharged internal combustion engine which makes use of easily realizable throttles. Thanks to these chokes, the two modes, ie suction - negative pressure - and supercharger operation - pressure - taken into account in an advantageous manner, the smaller diameter of the second throttle ensures that the intended idle speed is maintained.
  • the chokes together with the distributor unit form a unit which can be produced in a simple manner.
  • the oil separator which cooperates with the venting device, can be assigned both to an oil reservoir of dry sump lubrication and to an internal combustion engine housing, eg cylinder head.
  • An internal combustion engine 1 comprises a crankcase 2 with integrated cylinders 3 and cylinder heads 4, 5.
  • the gas movements in a combustion chamber 6 of the internal combustion engine 1 are controlled by intake valves 7 and exhaust valves 8.
  • the intake valves 7 operate at an outlet 9 of a suction pipe 10; the exhaust valves 8 at an input 11 of an outlet conduit 12.
  • a fuel-air mixture igniting spark plug is referred to.
  • the intake pipe 10 has a first pipe section 14 and a second pipe section 15.
  • the first line section 14 supplies atmospheric fresh air to a compressor 16 of a turbocharger 17 which is provided with a lubricant of said turbocharger receiving oil reservoir 18.
  • the oil tank 18 is connected by a line 19 to a suction pump, not shown. From the compressor 16 pre-compressed air is conveyed into the second line section 15.
  • a throttle valve 20 is arranged, with a defined distance to the inlet valve 7 and exit 9.
  • the internal combustion engine 1 is provided with a venting device 21, which comprises a crankcase ventilation 22 for blowby gases and a turbocharger vent 23. Both have a constructive not closer executed oil separator 24 together, which is part of an oil container 25 of a dry sump lubrication in the embodiment.
  • a venting device 21 which comprises a crankcase ventilation 22 for blowby gases and a turbocharger vent 23. Both have a constructive not closer executed oil separator 24 together, which is part of an oil container 25 of a dry sump lubrication in the embodiment.
  • the oil separator into the internal combustion engine 1 and indeed into a valve cover 26 of the cylinder heads 4, 5.
  • the crankcase ventilation 22 for blowby gases and the turbocharger vent 23 are connected to a distribution unit 27, which is associated with the oil separator 24.
  • the distributor unit 27 comprises a first throttle 28 and a second throttle 29, whose smallest diameters DI and DII are of different sizes, namely DI> DII.
  • the diameter DI of the first throttle 28 is between 2.8 and 3.2 mm; the diameter DII of the second throttle 29 is 1.3 to 1.7 mm.
  • first throttle 28 with the interposition of the oil separator 24 by means of a first line 30, which is led away above an oil level 31 from the oil reservoir 25, to the first line section 14 of the intake passage 10, whereas the second throttle 29 by means of a second line 32nd is connected to the second line section 15 of the intake pipe 10.
  • the second line 32 in which a check valve 33 is connected, is connected between the throttle valve 20 and output 9 to the second line section 15 of the intake line 10.
  • a third line 34 of the crankcase ventilation 21 is laid between the cylinder head 4 and oil reservoir 25.
  • the line 34 discharges above the oil level 31 into the oil tank 25.
  • a fourth line 35 of the turbocharger vent 23 connects the oil tank 18 to the distributor unit 27; a fifth conduit 36 is required when the turbocharger vent is operative for two turbochargers as set forth in the exemplary embodiment.
  • the distributor unit 27, together with the throttles 28, 29, can be a prefabricated structural unit which can be fastened to the oil container 25.
  • the second line 32 is active, i. Venting medium enters via the third line 34 in the oil separator 24, from where it - largely exempt from the oil - passes through the first throttle 28 and the second throttle 29 in the second line 32.
  • the check valve 33 is opened, so that this medium is returned to the second line section 15 of the suction line 10.
  • corresponding medium passes via the fourth line 35 and the fifth line 36 and the second throttle 29 in the second line 32nd
  • the check valve 33 is locked due to the pressure prevailing in the intake line 7 overpressure conditions.
  • the venting media of the crankcase ventilation 22 and of the turbocharger vent 23 reach the oil separator 24 in the regenerated state via the first line 30 into the first line section 14 of the intake line 7.

Landscapes

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

Claims (9)

  1. Moteur à combustion interne avec un dispositif d'aération qui sert à aérer le carter du vilebrequin, coopère avec un séparateur d'huile, est raccordé sur une conduite d'aspiration du moteur à combustion interne et est muni par ailleurs de étranglements, caractérisé en ce que le dispositif d'aération (21) comprend l'aération du carter de vilebrequin (22) ainsi qu'une aération de turbocompresseur (23) d'au moins un turbocompresseur (17) et en ce que l'aération du carter de vilebrequin (22) et l'aération de turbocompresseur (23) sont raccordées sur une unité de distribution (27) associée à un séparateur d'huile (24), qui comporte un premier étranglement (28) et un deuxième étranglement (29), le premier étranglement (28) étant raccordé de préférence sous montage intermédiaire du séparateur d'huile (24) sur une première conduite (30) reliée avec la conduite aspiration (10) et en ce que le deuxième étranglement (29) est raccordé par une deuxième conduite (32) à la conduite aspiration (10), de façon à ce que le dispositif d'aération (21) agisse en mode aspiration par l'intermédiaire de la deuxième conduite (32) et en mode turbocompresseur par l'intermédiaire de la première conduite (30).
  2. Dispositif d'aération selon la revendication 1, caractérisé en ce qu'un clapet anti-retour (33) est monté dans la deuxième conduite (32).
  3. Dispositif d'aération selon la revendication 1, caractérisé en ce que l'aération du turbocompresseur (23) est assurée à partir d'un réservoir d'huile (18) du turbocompresseur (17) et en ce qu'une conduite (quatrième conduite 35) est prévue entre le réservoir d'huile (18) et l'unité de distribution (27)
  4. Dispositif d'aération selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que l'unité de distribution (27) avec les étranglements (28, 29) forment une unité modulaire préfabriquée.
  5. Dispositif d'aération selon la revendication 1, caractérisé en ce que les plus petits diamètres (DI et DII) du premier et du deuxième étranglement (28, 29) sont de dimensions différentes, de façon à ce que le diamètre (DI) du premier étranglement (28) soit supérieur au diamètre (DII) du deuxième étranglement (29).
  6. Dispositif d'aération selon la revendicatopn 5, caractérisé en ce que le dimètre (DI) du premier étranglement (28) est de 2,6 à 3,4 mm et le diamètre (DII) du deuxième étranglement (29) est 1,3 à 1,7 mm.
  7. Dispositif d'aération avec un dispositif de turbocompresseurs qui comporte deux turbocompresseurs selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que l'aération de turbocompresseur (23) des deux turbocompresseurs est raccordée sur le dispositif d'aération (25).
  8. Dispositif d'aération selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le séparateur d'huile (24) est un élément d'un réservoir d'huile (25) d'un graissage à carter sec du moteur à combustion interne (1).
  9. Dispositif d'aération selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le séparateur d'huile (24) est un élément d'un carter de moteur à combustion interne, par exemple d'une tête de cylindre (5).
EP00110793A 1999-06-29 2000-05-20 Moteur à combustion avec un dispositif d'aération Expired - Lifetime EP1065350B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19929876A DE19929876A1 (de) 1999-06-29 1999-06-29 Brennkraftmaschine mit einer Entlüftungseinrichtung
DE19929876 1999-06-29

Publications (3)

Publication Number Publication Date
EP1065350A2 EP1065350A2 (fr) 2001-01-03
EP1065350A3 EP1065350A3 (fr) 2002-02-20
EP1065350B1 true EP1065350B1 (fr) 2006-02-08

Family

ID=7912993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110793A Expired - Lifetime EP1065350B1 (fr) 1999-06-29 2000-05-20 Moteur à combustion avec un dispositif d'aération

Country Status (5)

Country Link
US (1) US6394078B1 (fr)
EP (1) EP1065350B1 (fr)
JP (1) JP2001020715A (fr)
DE (2) DE19929876A1 (fr)
ES (1) ES2254071T3 (fr)

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DE10313192C5 (de) * 2003-03-25 2017-04-13 Volkswagen Ag Brennkraftmaschine und Verfahren zum Betreiben derselben
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JP4720783B2 (ja) * 2007-05-09 2011-07-13 日産自動車株式会社 過給器の潤滑装置
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DE102009051848A1 (de) 2009-10-28 2011-05-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brennkraftmaschine
DE102010009913A1 (de) 2010-03-02 2011-09-08 Daimler Ag Verbrennungskraftmaschine
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US8621865B2 (en) * 2010-05-04 2014-01-07 Ford Global Technologies, Llc Internal combustion engine with liquid-cooled turbine
DE102010019931A1 (de) * 2010-05-08 2011-11-10 Volkswagen Ag Verbrennungsluft führender Fluidleitungsabschnitt einer Verbrennungsluftanlage
DE102010049278A1 (de) 2010-10-22 2011-06-22 Daimler AG, 70327 Entlüftungseinrichtung
CN102852605A (zh) * 2011-06-29 2013-01-02 广西玉柴机器股份有限公司 发动机强制通风系统
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DE202014003301U1 (de) * 2014-04-17 2015-05-06 Reinz-Dichtungs-Gmbh Lüftungssystem
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CN105041426B (zh) * 2015-08-31 2018-04-13 中船动力有限公司 气体燃料发动机曲轴箱闭式透气系统
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Also Published As

Publication number Publication date
DE19929876A1 (de) 2001-01-11
ES2254071T3 (es) 2006-06-16
JP2001020715A (ja) 2001-01-23
US6394078B1 (en) 2002-05-28
EP1065350A2 (fr) 2001-01-03
DE50012181D1 (de) 2006-04-20
EP1065350A3 (fr) 2002-02-20

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