EP1074701A1 - Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine - Google Patents
Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1074701A1 EP1074701A1 EP00114083A EP00114083A EP1074701A1 EP 1074701 A1 EP1074701 A1 EP 1074701A1 EP 00114083 A EP00114083 A EP 00114083A EP 00114083 A EP00114083 A EP 00114083A EP 1074701 A1 EP1074701 A1 EP 1074701A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- venting
- line
- venting device
- crankcase
- gas inlet
- 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.)
- Withdrawn
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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
Definitions
- the invention relates to a ventilation device for a crankcase of an internal combustion engine, wherein the vent device releases the vent gases from the crankcase has exhausting ventilation line and an oil separator, corresponding to the introductory Part of claim 1.
- Venting devices of this type have a ventilation gases from the Crankcase exhaust ventilation line and a separate oil separator.
- a venting device is shown for example in DE-A1-39 18 785, according to which blow-by gases of the internal combustion engine from the crankcase through the cylinder head conveyed through to a cylinder head cover. This becomes the blow-by gases then fed via an external line to a separate oil separator, from which they return to the intake system of the internal combustion engine via a gas return line.
- the object of the invention is therefore to provide a ventilation device which is compact and is simply constructed.
- This arrangement of the oil separator in the vent line is according to the invention it is possible to make the ventilation device compact, the small number of construction elements, the ventilation device is designed to be easy to assemble.
- vent gases are advantageously from the crankcase and through a cylinder head passed through the internal combustion engine into the ventilation line. This will possible changes or adjustments of the crankcase to the ventilation device avoided. It is therefore the same ventilation device with different ones Crankcase designs with the interposition of a correspondingly adapted Connectable cylinder head.
- the ventilation duct leads through the control chamber of the cylinder head, so that the cylinder head space not used thereby either used in another way or can be saved completely, in the second case also a more compact one Design of the cylinder head is possible.
- the oil separator is advantageously designed as a sub-chamber of the ventilation line, the sub-chamber each having at least one gas inlet and one gas flow opening and at least one oil outlet opening is provided and the vent line has a gas outlet opening on the outlet side.
- the oil separator is therefore not a separate one Component trained, but represents a subordinate and fully integrated unit the vent line.
- the lower chamber is advantageously arranged in the gas inlet area of the vent line, so that the oil separation immediately after the vent gases enter the vent line can be done. This favors a compact design of the ventilation line.
- Longitudinal and / or transverse walls of the lower chamber are preferably in the gas inlet area for a vortex-favoring change of direction of the one entering the lower chamber Vent gas flow suitably arranged.
- This desired vortex formation of the oil-containing Venting gas enables effective and quick oil separation in the lower chamber the vent line.
- the lower chamber is advantageously by a projecting transversely into the vent line Bridge limited, so that the oil separator is very compact and structurally simple than in the Vent line fully integrated component is formed.
- the end face of the web preferably limits the gas flow opening.
- the gas inlet direction of the vent line is advantageously transverse to the main direction of expansion of the ventilation line, so that the ventilation line has little space effective oil separation is possible by creating eddies in the gas inlet area.
- the gas inlet direction runs in the Gas inlet opening and the longitudinal extension of the web essentially parallel to one another, and the gas inlet opening lies in the main direction of expansion of the ventilation line running distance to the web.
- the vent line is preferably designed as a one-piece cast part in order to ensure a stable, to ensure simple and cost-effective implementation of the ventilation line in terms of production technology. Furthermore, a ventilation line designed as a one-piece casting enables a minimization of the number of joints of the ventilation device, so that the risk of possible undesired leakage losses in the ventilation line is reduced.
- a ventilation device designated 10 is shown schematically, which via a cylinder head 12 with a crankcase 11 of an internal combustion engine known per se connected is.
- the venting device 10 is part of one in the present case Combustion air supplying intake system 8 and structurally integrated into this. She is with a vent line 13 which is suitable for venting gases through the cylinder head 12 to suck through from the crankcase 11.
- the extracted, oil-containing Vent gases become an oil separator 14 that can be connected to an oil return line supplied, which is advantageously arranged in the vent line 13 and in this is fully integrated.
- the oil separator 14 is designed as a sub-chamber 15 of the ventilation line 13.
- the in Sub-chamber 15 arranged in the gas inlet area of the ventilation line 13 is in each case a gas inlet opening 16 and a gas flow opening 21 and with an oil outlet opening 18 provided.
- To delimit the lower chamber 15 serve in the vent line 13 transversely projecting web 19 and corresponding longitudinal and transverse walls 20 of the Vent line 13 in the gas inlet area, these walls 20 also one Form flange 9 for fastening intake system 8 to cylinder head 12.
- the vent line 13 is provided on the output side with a gas outlet opening 17.
- the gas inlet direction marked with the arrow 24 in the gas inlet opening 16, the with the arrow 25 marked gas outlet direction from the gas outlet opening 17 and the longitudinal extension of the web 19 is essentially parallel to one another.
- the gas inlet opening 16 is located in the main direction of expansion of the vent line 13 Distance to the web 19.
- the gas inlet direction 24 and the gas outlet direction 25 of the Vent line 13 lie transversely to the main direction of expansion of the vent line 13. It thus takes place in the gas inlet area through the longitudinal and transverse walls 20 of the lower chamber 15 and by the web 19 a vortex-promoting change in direction of the Vent gas flow when the gas enters the subchamber through the gas inlet port 16 15 occurs.
- the vent line 13 is at the gas inlet opening 16 with a vent channel 22 of the Cylinder head 12 connected, wherein the ventilation duct 22 outside a cylinder head control chamber leads to a corresponding ventilation duct 23 of the crankcase 11.
- vent gases which are also called blow-by gases are designated by the ventilation duct 23 of the crankcase 11 and the ventilation duct 22 of the cylinder head 12 and passed through the gas inlet opening 16 laterally into the sub-chamber 15 forming the oil separator 14.
- the web 19 projecting transversely into the vent line 13 becomes the flow direction of the vent gases modified such that there is a desired swirling of the vent gas comes in the lower chamber 15.
- the separated oil passes through the oil outlet opening 18 into an oil return line, which returns the separated oil into the crankcase 11.
- the ventilation gases are through between the web 19 and the gas inlet opening 16 adjacent longitudinal wall 20, internal flow opening 21 led to the gas outlet opening 17 which can be connected to a gas return line.
- the gas return line leads the ventilation gases freed from oil in the oil separator 14 into the intake system the internal combustion engine.
- the ventilation duct 22 in the cylinder head 12 has the smallest possible spatial extent on, so that a small volume proportion of the cylinder head 12 for venting the crankcase 11 must be provided.
- the vent channel 22 does not lead through one oil-containing cylinder head control chamber, in which the ventilation gases disadvantageously additionally could be contaminated with oil.
- the venting device 10 is preferred with the ventilation duct 22 of the cylinder head 12 and not directly with the ventilation duct 23 of the crankcase 11 connected to any necessary design changes to avoid the crankcase 11.
- the ventilation device 10 can also be connected directly to the crankcase 11, that is, the ventilation gases not through the cylinder head 12 into the vent line 13, but are made a possibly structurally adapted ventilation channel 23 of the crankcase 11 in the the sub-chamber 15 forming the oil separator 14 is passed. In this way he can no longer required ventilation duct 22 in the cylinder head 12 can be completely eliminated.
- the venting device 13 is advantageously designed as a one-piece casting.
- the sub-chamber forming the oil separator 14 can 15 also be formed almost spherically.
- a subchamber 15 designed in this way favors a streamlined deflection of the frontal to the lower chamber wall impinging vent gas flow and at the same time a desired vortex formation of the Vent gas flow in the subchamber 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
- Figur 1
- eine schematisch im Schnitt dargestellte Entlüftungsvorrichtung, die über einen Zylinderkopf mit einem Kurbelgehäuse verbunden ist.
Claims (13)
- Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine, wobei die Entlüftungsvorrichtung eine die Entlüftungsgase aus dem Kurbelgehäuse absaugende Entlüftungsleitung und einen Ölabscheider aufweist, dadurch gekennzeichnet, daß der Ölabscheider (14) in der Entlüftungsleitung (13) angeordnet ist.
- Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Entlüftungsgase aus dem Kurbelgehäuse (11) und durch einen Zylinderkopf (12) der Brennkraftmaschine hindurch in die Entlüftungsleitung (13) geführt sind.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein eingangsseitig mit der Entlüftungsleitung (13) verbundener Entlüftungskanal (22) des Zylinderkopfes (12) außerhalb eines Zylinderkopf-Steuerraumes zu einem Entlüftungskanal (23) des Kurbelgehäuses (11) führt.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Ölabscheider (14) als Unterkammer (15) der Entlüftungsleitung (13) ausgebildet ist, wobei die Unterkammer (15) mit jeweils wenigstens einer Gaseintrittsöffnung (16), einer Gasdurchflußöffnung (21) und einer Ölaustrittsöffnung (18) versehen ist, und die Entlüftungsleitung (13) ausgangsseitig eine Gasaustrittsöffnung (17) aufweist.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Unterkammer (15) im Gaseintrittsbereich der Entlüftungsleitung (13) angeordnet ist.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Längs- und/oder Querwandungen (20) der Unterkammer (15) im Gaseintrittsbereich für eine wirbelbegünstigende Richtungsänderung des in die Unterkammer (15) eintretenden Entlüftungsgasflusses geeignet angeordnet sind.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Unterkammer (15) durch einen quer in die Entlüftungsleitung (13) ragenden Steg (19) begrenzt wird.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Steg (19) mit seiner Stirnseite die Gasdurchflußöffnung (21) begrenzt.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Gaseintrittsrichtung (24) der Entlüftungsleitung (13) quer zur Hauptausdehnungsrichtung der Entlüftungsleitung (13) liegt.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Gaseintrittsrichtung (24) in die Gaseintrittsöffnung (16) und die Längserstreckung des Stegs (19) zueinander im wesentlichen parallel verlaufen und daß die Gaseintrittsöffnung (16) mit in Hauptausdehnungsrichtung verlaufenden Abstand zum Steg (19) liegt.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Entlüftungsvorrichtung (13) als einteiliges Gußteil ausgebildet ist.
- Entlüftungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Ölabscheider (14) und Entlüftungsleitung (14) in eine Verbrennungsluft zuführende Ansauganlage (8) der Brennkraftmaschiene integriert angeordnet sind.
- Entlüftungsvorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß eine den Ölabscheider (14) begrenzende Längswandung (20) als Flansch (9) der Ansauganlage (8) ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19937033 | 1999-08-05 | ||
DE1999137033 DE19937033A1 (de) | 1999-08-05 | 1999-08-05 | Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1074701A1 true EP1074701A1 (de) | 2001-02-07 |
Family
ID=7917365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00114083A Withdrawn EP1074701A1 (de) | 1999-08-05 | 2000-07-07 | Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1074701A1 (de) |
DE (1) | DE19937033A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10105555B4 (de) * | 2001-02-06 | 2016-02-25 | Volkswagen Ag | Entlüftungsvorrichtung für ölbeladene Gase einer Brennkraftmaschine |
DE10320493A1 (de) * | 2003-05-08 | 2004-12-02 | Volkswagen Ag | Brennkraftmaschine mit Kurbelgehäuseentlüftung |
DE102010024172B4 (de) | 2010-06-17 | 2021-02-11 | Volkswagen Ag | Brennkraftmaschine und Verfahren zum Betrieb einer Brennkraftmaschine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4502424A (en) * | 1982-11-24 | 1985-03-05 | Honda Giken Kogyo Kabushiki Kaisha | Blow-by gas recovering system for internal combustion engines |
GB2155998A (en) * | 1984-03-15 | 1985-10-02 | Honda Motor Co Ltd | Crankcase ventilating system and method of removing oil mist from gas in the system |
DE3918785A1 (de) | 1989-06-08 | 1990-12-13 | Bayerische Motoren Werke Ag | Sauganlage einer brennkraftmaschine |
US5474035A (en) * | 1994-07-08 | 1995-12-12 | Outboard Marine Corporation | Engine breather construction |
EP0810351A1 (de) * | 1996-05-31 | 1997-12-03 | IVECO FIAT S.p.A. | Brennkraftmaschine mit einer Reinigungsvorrichtung für die Durchblasgase des Kurbelgehäuses |
GB2318615A (en) * | 1996-10-26 | 1998-04-29 | Daimler Benz Ag | Venting device for a crankcase of an internal combustion engine |
US5798602A (en) * | 1994-08-25 | 1998-08-25 | Societe Nationale Industrielle Et Aerospatial | Plasma accelerator with closed electron drift |
US5927258A (en) * | 1998-01-29 | 1999-07-27 | Daimler-Benz A.G. | Venting arrangement with integrated oil separator for an internal combustion engine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2661455A1 (fr) * | 1990-04-26 | 1991-10-31 | Peugeot | Dispositif de recuperation et de recyclage des gaz de combustion imbrules emanant du carter d'un moteur a combustion interne, et moteur equipe de ce dispositif. |
GB2260365A (en) * | 1991-10-03 | 1993-04-14 | Jaguar Cars | Oil Separation from i.c. engine crankcase gases |
DE19703771C1 (de) * | 1997-02-01 | 1998-06-25 | Daimler Benz Ag | Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
DE19703770C1 (de) * | 1997-02-01 | 1998-07-23 | Daimler Benz Ag | Entlüftungsvorrichtung mit integriertem Ölabscheider für ein Kurbelgehäuse einer Brennkraftmaschine |
-
1999
- 1999-08-05 DE DE1999137033 patent/DE19937033A1/de not_active Withdrawn
-
2000
- 2000-07-07 EP EP00114083A patent/EP1074701A1/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4502424A (en) * | 1982-11-24 | 1985-03-05 | Honda Giken Kogyo Kabushiki Kaisha | Blow-by gas recovering system for internal combustion engines |
GB2155998A (en) * | 1984-03-15 | 1985-10-02 | Honda Motor Co Ltd | Crankcase ventilating system and method of removing oil mist from gas in the system |
DE3918785A1 (de) | 1989-06-08 | 1990-12-13 | Bayerische Motoren Werke Ag | Sauganlage einer brennkraftmaschine |
US5474035A (en) * | 1994-07-08 | 1995-12-12 | Outboard Marine Corporation | Engine breather construction |
US5798602A (en) * | 1994-08-25 | 1998-08-25 | Societe Nationale Industrielle Et Aerospatial | Plasma accelerator with closed electron drift |
EP0810351A1 (de) * | 1996-05-31 | 1997-12-03 | IVECO FIAT S.p.A. | Brennkraftmaschine mit einer Reinigungsvorrichtung für die Durchblasgase des Kurbelgehäuses |
GB2318615A (en) * | 1996-10-26 | 1998-04-29 | Daimler Benz Ag | Venting device for a crankcase of an internal combustion engine |
US5927258A (en) * | 1998-01-29 | 1999-07-27 | Daimler-Benz A.G. | Venting arrangement with integrated oil separator for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE19937033A1 (de) | 2001-02-08 |
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