EP0978639A1 - Zylinderkopfhaube - Google Patents
Zylinderkopfhaube Download PDFInfo
- Publication number
- EP0978639A1 EP0978639A1 EP99107374A EP99107374A EP0978639A1 EP 0978639 A1 EP0978639 A1 EP 0978639A1 EP 99107374 A EP99107374 A EP 99107374A EP 99107374 A EP99107374 A EP 99107374A EP 0978639 A1 EP0978639 A1 EP 0978639A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder head
- head cover
- crankcase
- flow
- interior
- 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.)
- Granted
Links
Images
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
Definitions
- the invention relates to a cylinder head cover for an internal combustion engine, in particular a gasoline or diesel engine, especially for a motor vehicle, with a Venting device and a flow channel, which the venting device with connects an interior of a crankcase of the internal combustion engine to be vented, according to the preamble of claim 1.
- a generic cylinder head cover is for example from DE 36 15 397 C2 known.
- an exhaust air line connects the crankcase area to be vented a chamber of the venting device.
- the exhaust duct is as an opening in one Common wall of ventilation valve and cylinder head cover executed.
- a mechanical liquid separator is provided in the venting device.
- the present invention has for its object a cylinder head cover to provide the above type, with an improved oil separation from the crankcase gases escaping the crankcase is achieved in a simple manner.
- the flow channel upstream of the Venting device seen from the following, a first flow space, which is sealed from the interior of the crankcase with an oil mist-proof seal and one with the first flow space by means of an overflow channel and connected by gas the second flow space, which is formed separately from the first flow space and which the interior of the crankcase is connected in a gas-conducting manner.
- first and the second flow space are on opposite sides of the cylinder head cover.
- the overflow channel is expediently located on a ceiling of the cylinder head cover formed on the crankcase side.
- the second flow space expediently has at least one on the crankcase side Connecting wall with at least one through hole as a connection to Interior of the crankcase.
- the second points Flow space on the crankcase side at least one closed wall, which adjoins the connecting wall and extends beyond this into the interior of the Crankcase extends into it.
- the second flow space is at one of the Venting device opposite side and the first flow space on one of the Ventilation device next side of the cylinder head cover formed, the Overflow channel across a ceiling of the cylinder head cover over its entire width from one side with the second flow space to the corresponding other side extends with the first flow space.
- FIGS. 1 and 2 of an inventive Cylinder head cover 10 comprises a ventilation device 12, a first side 14, one of the first side 14 opposite second side 16 and a blanket 18. Adjacent and Near the first side 14, the ventilation device 12 is arranged, which does the following comprises a base frame 20 and a cover 22, which together form a valve housing 20, 22 form.
- a membrane 24 is arranged, which is supported on a seat 26 and the valve housing 20, 24 in two chambers 28 and 30, namely a lower chamber 28 and an upper chamber 30.
- the lower chamber 28 is arranged on the crankcase side and the upper chamber 30 is opposite at one Side of the valve housing 20, 22 facing away from the crankcase.
- the seat 26 of the membrane 24 and the base frame 20 of the valve housing 20, 22 are formed integrally with the cylinder head cover 10. It is also a gas outflow channel 32 with a nozzle 34 for connection to an air intake duct, not shown Internal combustion engine provided. This gas discharge channel 32 cannot in one Alternative embodiment shown can also be formed on the cover 22. To this Then is the upper chamber 30 with the air intake duct of the internal combustion engine connected. In this way, crankcase gases entering the upper chamber 30 are introduced into the Combustion process of the internal combustion engine returned and do not escape into the Surroundings. On the membrane 24, a vent valve plate 36 is arranged such that when the diaphragm 24 moves back and forth, the gas outflow channel is optionally selected 32 opens or closes.
- the venting device 12 or its upper chamber 30 is via a flow channel connected to an interior of the crankcase to be vented, the Flow channel according to the invention composed of the following components.
- the first flow chamber 38 is in gas-conducting connection with the first side 14 Venting device 12 and oil mist-tight from the interior of the vented Crankcase trained completed.
- the second flow space 42 is over a full length of the second side 16 with a first wall 44 and a second wall 46 trained.
- the first wall 44 is provided with openings 48, which one gas-conducting connection between the second flow space 42 and the one to be vented Provide the interior of the crankcase. Step through these openings 48 Crankcase gases from the interior of the crankcase to the second Flow space 42 a.
- the overflow channel 40 is on the ceiling 18 of the cylinder head cover 10 on the crankcase side formed and connects the second flow space 42 with the first flow space 38.
- a correspondingly wide design of this overflow channel 40 prevails there low flow velocities so that oil droplets are carried away when they pass through the crankcase gases from the second flow space 42 via the overflow channel 40 in the first flow space 38 is avoided.
- This may be supported by the fact that Overflow channel is arcuate, so that the arc shape is to be overcome Represents slope for possibly entrained oil droplets, which by the low Flow rate in the overflow channel 40 from the oil droplets does not can be overcome. These then fall under the influence of gravity instead back into the second flow space 42, where it enters the interior of the crankcase, for example via openings 48.
- crankcase gases from the interior of the crankcase to be vented suctioning second flow space 42 is corresponding by the provision of a adapted overflow channel 40 at any point on the crankcase side in the Cylinder head cover 10 can be arranged.
- the second is Flow space 42, for example, on the one opposite the ventilation device 12 second side 16 arranged so that the openings 48 on at least from under the Cylinder head cover 10 working valves, not shown, are injected with oil.
- the wall 46 of the second is Flow space 42 beyond the wall 44 in the direction of the crankcase Forming an additional splash guard extended.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
- Fig. 1
- eine bevorzugte Ausführungsform einer erfindungsgemäßen Zylinderkopfhaube in Unteransicht und
- Fig. 2
- in einer Schnittansicht entlang Linie A-A von Fig. 1.
Claims (8)
- Zylinderkopfhaube für eine Brennkraftmaschine, insbesondere einen Otto- oder Dieselmotor, insbesondere für ein Kraftfahrzeug, mit einer Entlüftungsvorrichtung (12) und einem Strömungskanal, welcher die Entlüftungsvorrichtung (12) mit einem zu entlüftenden Innenraum eines Kurbelgehäuses der Brennkraftmaschine verbindet, dadurch gekennzeichnet,
daß der Strömungskanal stromauf von der Entlüftungseinrichtung (12) aus gesehen folgendes aufweist, einen ersten Strömungsraum (38), welcher vom Innenraum des Kurbelgehäuses ölnebeldicht abgeschlossen ist, und einen mit dem ersten Strömungsraum (38) mittels eines Überströmkanals (40) gasleitend verbundenen und von dem ersten Strömungsraum (38) getrennt ausgebildeten zweiten Strömungsraum (42), welcher mit dem Innenraum des Kurbelgehäuses gasleitend verbunden ist. - Zylinderkopfhaube nach Anspruch 1,
dadurch gekennzeichnet,
daß der erste und der zweite Strömungsraum (38,42) an gegenüberliegenden Seiten (14,16) der Zylinderkopfhaube (10) ausgebildet sind. - Zylinderkopfhaube nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Überströmkanal (40) an einer Decke (18) der Zylinderkopfhaube (10) kurbelgehäuseseitig ausgebildet ist. - Zylinderkopfhaube nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Überströmkanal (40) derart ausgebildet ist, daß dieser in Betriebsstellung der Brennkraftmaschine eine insbesondere bogenförmige Erhöhung entgegen einer Schwerkraftrichtung aufweist. - Zylinderkopfhaube nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der zweite Strömungsraum (42) sich über eine gesamte Längsseite (16) der Zylinderkopfhaube (10) erstreckend ausgebildet ist. - Zylinderkopfhaube nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der zweite Strömungsraum (42) kurbelgehäuseseitig wenigstens eine Verbindungswandung (44) mit wenigstens einer Öffnung (48) als Verbindung zum zu entlüftenden Innenraum des Kurbelgehäuses aufweist. - Zylinderkopfhaube nach Anspruch 6,
dadurch gekennzeichnet,
daß der zweite Strömungsraum (42) kurbelgehäuseseitig wenigstens eine geschlossene Wandung (46) aufweist, welche an die Verbindungswandung (44) angrenzt und sich über diese hinaus in den Innenraum des Kurbelgehäuses hinein erstreckt. - Zylinderkopfhaube nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der zweite Strömungsraum (42) an einer der Entlüftungseinrichtung (12) gegenüberliegenden Seite und der erste Strömungsraum (38) an einer der Entlüftungseinrichtung (12) nächsten Seite der Zylinderkopfhaube (10) ausgebildet ist, wobei sich der Überströmkanal (40) quer über eine Decke (18) der Zylinderkopfhaube (10) über dessen gesamte Breite von der einen Seite (16) mit dem zweiten Strömungsraum (42) zur der entsprechenden anderen Seite (14) mit dem ersten Strömungsraum (38) erstreckt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19835564A DE19835564A1 (de) | 1998-08-06 | 1998-08-06 | Zylinderkopfhaube |
DE19835564 | 1998-08-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0978639A1 true EP0978639A1 (de) | 2000-02-09 |
EP0978639B1 EP0978639B1 (de) | 2004-10-13 |
Family
ID=7876673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99107374A Expired - Lifetime EP0978639B1 (de) | 1998-08-06 | 1999-04-22 | Zylinderkopfhaube |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0978639B1 (de) |
DE (2) | DE19835564A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2826691A1 (fr) * | 2001-07-02 | 2003-01-03 | Solvay | Circuit de reaspiration des gaz de carter d'un moteur a combustion interne |
US20180112567A1 (en) * | 2016-10-26 | 2018-04-26 | GM Global Technology Operations LLC | Integrated oil separator assembly for crankcase ventillation |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006019880A1 (de) * | 2006-04-28 | 2007-10-31 | Audi Ag | Motorgehäusedeckel eines Verbrennungsmotors mit Entlüftungssystem |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4721090A (en) * | 1985-06-03 | 1988-01-26 | Honda Giken Kogyo Kabushiki Kaisha | Blow-by gas recirculating apparatus |
US4993375A (en) * | 1989-06-19 | 1991-02-19 | Nissan Motor Company, Ltd. | Engine cylinder head cover |
EP0591737A1 (de) * | 1992-10-09 | 1994-04-13 | FIAT AUTO S.p.A. | Öldampfentlüftungseinrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
DE3615397C2 (de) | 1985-05-18 | 1995-03-09 | Volkswagen Ag | Entlüftungsvorrichtung für einen teilweise mit einer Flüssigkeit gefüllten Raum |
EP0744535A1 (de) * | 1995-05-22 | 1996-11-27 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Brennkraftmaschine mit einer Ölabscheidekammer |
DE19732367A1 (de) * | 1997-07-28 | 1999-02-04 | Volkswagen Ag | Kurbelgehäuse-Entlüftungsventil für eine Brennkraftmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3326881A1 (de) * | 1983-07-26 | 1984-05-24 | Daimler-Benz Ag, 7000 Stuttgart | Kurbelgehaeuseentlueftung fuer eine brennkraftmaschine |
DE3625836A1 (de) * | 1986-07-30 | 1988-02-11 | Audi Ag | Vorrichtung zur entlueftung des kurbelraumes einer brennkraftmaschine |
DE4128453B4 (de) * | 1991-08-28 | 2005-08-11 | Deutz Ag | Kurbelgehäuseentlüftung |
DE19604708A1 (de) * | 1995-03-01 | 1996-09-05 | Knecht Filterwerke Gmbh | Zyklonabscheider für die Kurbelgehäuse-Entlüftung eines Verbrennungsmotors mit einem Entlüftungsventil |
-
1998
- 1998-08-06 DE DE19835564A patent/DE19835564A1/de not_active Ceased
-
1999
- 1999-04-22 DE DE1999510806 patent/DE59910806D1/de not_active Expired - Lifetime
- 1999-04-22 EP EP99107374A patent/EP0978639B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615397C2 (de) | 1985-05-18 | 1995-03-09 | Volkswagen Ag | Entlüftungsvorrichtung für einen teilweise mit einer Flüssigkeit gefüllten Raum |
US4721090A (en) * | 1985-06-03 | 1988-01-26 | Honda Giken Kogyo Kabushiki Kaisha | Blow-by gas recirculating apparatus |
US4993375A (en) * | 1989-06-19 | 1991-02-19 | Nissan Motor Company, Ltd. | Engine cylinder head cover |
EP0591737A1 (de) * | 1992-10-09 | 1994-04-13 | FIAT AUTO S.p.A. | Öldampfentlüftungseinrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
EP0744535A1 (de) * | 1995-05-22 | 1996-11-27 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Brennkraftmaschine mit einer Ölabscheidekammer |
DE19732367A1 (de) * | 1997-07-28 | 1999-02-04 | Volkswagen Ag | Kurbelgehäuse-Entlüftungsventil für eine Brennkraftmaschine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2826691A1 (fr) * | 2001-07-02 | 2003-01-03 | Solvay | Circuit de reaspiration des gaz de carter d'un moteur a combustion interne |
WO2003004836A1 (fr) * | 2001-07-02 | 2003-01-16 | Filterwerk Mann+Hummel Gmbh | Circuit de reaspiration des gaz de carter d'un moteur a combustion interne |
US20180112567A1 (en) * | 2016-10-26 | 2018-04-26 | GM Global Technology Operations LLC | Integrated oil separator assembly for crankcase ventillation |
US10151225B2 (en) * | 2016-10-26 | 2018-12-11 | GM Global Technology Operations LLC | Integrated oil separator assembly for crankcase ventilation |
Also Published As
Publication number | Publication date |
---|---|
DE59910806D1 (de) | 2004-11-18 |
EP0978639B1 (de) | 2004-10-13 |
DE19835564A1 (de) | 2000-02-10 |
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