DE102004050056A1 - Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support - Google Patents

Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support Download PDF

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Publication number
DE102004050056A1
DE102004050056A1 DE200410050056 DE102004050056A DE102004050056A1 DE 102004050056 A1 DE102004050056 A1 DE 102004050056A1 DE 200410050056 DE200410050056 DE 200410050056 DE 102004050056 A DE102004050056 A DE 102004050056A DE 102004050056 A1 DE102004050056 A1 DE 102004050056A1
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DE
Germany
Prior art keywords
lubricant
machine housing
support
exhibits
housing
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Withdrawn
Application number
DE200410050056
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German (de)
Inventor
Michael Schleusener
Torsten Eder
Martin Klering
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.)
Bayerische Motoren Werke AG
PSA Automobiles SA
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE200410050056 priority Critical patent/DE102004050056A1/en
Priority to EP20050019395 priority patent/EP1666714B1/en
Publication of DE102004050056A1 publication Critical patent/DE102004050056A1/en
Withdrawn legal-status Critical Current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
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
    • F01L13/0026—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio by means of an eccentric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries

Abstract

The machine housing (1) has a camshaft (2) whose support is subjected to a pressurized lubricant. It exhibits an axle (4) at which the support is swivel mounted. The housing exhibits a wall (5) and in installed position, it has a support and is subjected to lubricant whereby the lubricant is arranged in sections at the support.

Description

Die Erfindung betrifft ein Maschinengehäuse, insbesondere einen Zylinderkopf für eine Brennkraftmaschine, mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The The invention relates to a machine housing, in particular a cylinder head for one Internal combustion engine, having the features of the preamble of the claim 1.

Sie geht von der europäischen Patentanmeldung EP 1 350 928 A2 aus. In dieser ist eine Vorrichtung zur variablen Betätigung eines Hubventils einer Brennkraftmaschine beschrieben. Diese Vorrichtung ist in einem Maschinengehäuse angeordnet, und besteht neben weiteren Bauteilen zumindest aus einer Nockenwelle und einer zur Nockenwelle parallel angeordneten weiteren Welle, einer Exzenterwelle zur Hubhöhenverstellung des Hubventils. Die Nockenwelle und die Exzenterwelle sind jeweils drehbar in dem Maschinengehäuse gelagert. Ein Schlepphebel, der zur Betätigung eines Hubventils vorgesehen ist, ist einerseits auf einem Hydrosockel, einem hydraulischen Spielausgleichselement und andererseits auf dem Ventilschaft eines Hubventils gelagert. Der Hydrosockel wird wie auch die Lagerstellen von Nockenwelle und Exzenterwelle von einem unter Druck stehenden Schmiermittel versorgt.It is based on the European patent application EP 1 350 928 A2 out. In this a device for variable actuation of a lift valve of an internal combustion engine is described. This device is arranged in a machine housing, and consists in addition to other components at least a camshaft and a camshaft arranged in parallel to another shaft, an eccentric shaft for lifting height adjustment of the lift valve. The camshaft and the eccentric shaft are each rotatably mounted in the machine housing. A drag lever, which is provided for actuating a lift valve, is mounted on the one hand on a hydraulic base, a hydraulic clearance compensation element and on the other hand on the valve stem of a lift valve. The hydraulic base is supplied by a pressurized lubricant as well as the bearings of the camshaft and eccentric shaft.

Nachteilig bei der beschriebenen Ausgestaltung ist der hohe bauliche Aufwand, um alle Lagerstellen mit Schmiermittel zu versorgen. Wie dem Fachmann allgemein geläufig ist, erfolgt dies normalerweise über Schmiermittelspritzdüsen oder durch Schmiermittelbohrungen, die in den Lagerstellen enden.adversely in the described embodiment, the high construction costs, to supply all bearings with lubricant. As the expert generally familiar is, this is usually done over Lubricant spray nozzles or through lubricant holes that end in the bearings.

Aufgabe der vorliegenden Erfindung ist es, eine vereinfachte Schmiermittelversorgung für die Lagerstellen eines gattungsgemäßen Maschinengehäuses aufzuzeigen.task It is the object of the present invention to provide a simplified lubricant supply for the bearings to show a generic machine housing.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Maschinengehäuse eine Wandung aufweist, die in Einbaulage des Maschinengehäuses aus einem Lager ausgetretenes und/oder in dem Maschinengehäuse verspritztes Schmiermittel auffängt, wobei ein weiteres Lager zumindest abschnittsweise in dem aufgefangenen Schmiermittel angeordnet ist. Durch die vorgeschlagene Ausgestaltung werden die Fertigungskosten für ein gattungsgemäßes Maschinengehäuse reduziert, da die Bearbeitung von Schmiermittelbohrungen oder die Verwendung von zusätzlichen Schmiermittelspritzdüsen entfällt. Ferner weist das erfindungsgemäße Maschinengehäuse einen reduzierten Schmiermittelförderbedarf auf, wodurch eine kleinere Schmiermittelpumpe verwendet werden kann. Dies führt ebenfalls zu geringeren Herstellungskosten, sowie zu einem reduzierten Kraftstoffverbrauch der Brennkraftmaschine.These Task is inventively characterized solved, that the machine housing having a wall in the installed position of the machine housing a lubricant leaked from a bearing and / or splashed in the machine housing fields, wherein another bearing at least partially in the collected lubricant is arranged. The proposed embodiment, the Production costs for one generic machine housing reduced because the machining of lubricant holes or the use of additional Lubricant spray nozzles eliminated. Furthermore, the machine housing according to the invention has a reduced lubricant delivery requirement on, whereby a smaller lubricant pump can be used. this leads to also to lower production costs, as well as to a reduced Fuel consumption of the internal combustion engine.

Die erfindungsgemäße Ausgestaltung eignet sich gemäß Patentanspruch 2 insbesondere für weitgehend parallel zur Nockenwelle angeordnete Wellen. Für diesen Fall kann beispielsweise wasserfallartig das aus dem Lager der Nockenwelle austretende Schmiermittel in der geodätisch tiefer gelegenen Mulde aufgefangen werden. Zusätzlich wird auch ein Teil des beim Betrieb der Brennkraftmaschine beispielsweise von den Nocken der Nockenwelle verspritztes Schmiermittel in der Mulde aufgefangen.The inventive design is suitable according to claim 2 especially for largely parallel to the camshaft arranged waves. For this Case, for example, waterfall-like from the camp of the camshaft escaping lubricant in the geodesically lower trough be caught. additionally is also a part of the operation of the internal combustion engine, for example from the cam of the camshaft spilled lubricant in the Mulde caught.

Die vorgeschlagene Ausgestaltung ist insbesondere für hubvariable Ventiltriebe mit einer Hubhöhenverstellung durch eine Exzenterwelle geeignet.The proposed embodiment is particularly for variable stroke valve trains with a lift height adjustment suitable by an eccentric shaft.

Im Folgenden ist die Erfindung anhand eines bevorzugten Ausführungsbeispieles in zwei Figuren näher erläutert.in the The invention is based on a preferred embodiment closer in two figures explained.

1 zeigt eine Aufsicht auf ein erfindungsgemäßes Maschinengehäuse mit einer Nockenwelle und einer weiteren Welle, 1 shows a plan view of an inventive engine housing with a camshaft and another shaft,

2 zeigt eine Aufsicht auf das erfindungsgemäße Maschinengehäuse ohne Nockenwelle und ohne weitere Welle. 2 shows a plan view of the machine housing according to the invention without a camshaft and without another shaft.

1 zeigt die Aufsicht auf ein dreidimensional dargestelltes Maschinengehäuse 1 mit einer Nockenwelle 2, im vorliegenden Fall ein Zylinderkopf für eine Brennkraftmaschine. Der Blick ist auf eine Teilungsebene 1' von einem in 2 erkennbaren Lager 3 einer weiteren Welle 4 gerichtet. Die weitere Welle 4 weist an ihrem Außenumfang ein Zahnradsegment 4' mit einer Außenverzahnung 4'' auf. Dieses Zahnradsegment 4' dient beim Betrieb der Brennkraftmaschine zur Verdrehung der weiteren Welle 4, in der vorliegenden Ausführung eine Exzenterwelle, mittels einem nicht dargestellten Schneckenrad. Das Zahnradsegment 4' ist abschnittsweise in einer geodätisch tieferen Mulde 6 angeordnet und ragt bis in ein in der Mulde 6 gesammeltes Schmiermittel. Die Mulde 6 wird von drei Außenwänden 1'' des Maschinengehäuses 1 gebildet, sowie einer erfindungsgemäß in Einbaulage weitgehend senkrecht ausgerichteten Wandung 5, die sich in dem Ausführungsbeispiel zwischen zwei Außenwänden 1'' erstreckt, dargestellt durch einen Doppelpfeil. Neben dem Zahnradsegment 4' ist auch ein Teil des Lagers 3 im dem in der Mulde 6 gesammelten Schmiermittel angeordnet. 1 shows the top view of a three-dimensionally illustrated machine housing 1 with a camshaft 2 , In the present case, a cylinder head for an internal combustion engine. The view is on a division level 1' from one in 2 recognizable bearing 3 another wave 4 directed. The further wave 4 has on its outer periphery a gear segment 4 ' with an external toothing 4 '' on. This gear segment 4 ' used in the operation of the internal combustion engine to rotate the other shaft 4 , in the present embodiment, an eccentric shaft, by means of a worm wheel, not shown. The gear segment 4 ' is partially in a geodetically deeper hollow 6 arranged and protrudes into one in the hollow 6 collected lubricant. The hollow 6 is made up of three exterior walls 1'' of the machine housing 1 formed, as well as a wall according to the invention largely oriented in the installed position 5 , which in the embodiment between two outer walls 1'' extends, represented by a double arrow. Next to the gear segment 4 ' is also part of the camp 3 in the dump 6 collected lubricant arranged.

Beim Betrieb der Brennkraftmaschine wird die Mulde 6 im vorliegenden Ausführungsbeispiel durch von dem Ventiltrieb und Schmiermittelspritzdüsen verspritztes Schmiermittel aufgefüllt. In einem weiteren Ausführungsbeispiel kann auch ein weiteres Lager geodätisch oberhalb der Mulde 6 angeordnet sein, wobei in diesem Fall die Mulde 6 von aus diesem Lager austretendem Schmiermittel und je nach konstruktiver Ausgestaltung zusätzlich von verspritztem Schmiermittel aufgefüllt wird.During operation of the internal combustion engine, the trough is 6 in the present embodiment by the valve train and Schmiermittelpritzdü filled with spilled lubricant. In another embodiment, another bearing may geodetically above the trough 6 be arranged, in which case the trough 6 is discharged from this bearing leaking lubricant and depending on the structural design of additionally sprayed lubricant.

Im vorliegenden Ausführungsbeispiel ist die weitere Welle 4, wie bereits oben kurz bemerkt, eine Exzenterwelle für einen hubvariablen Ventiltrieb, wobei die weitere Welle 4 parallel zur Nockenwelle 2 angeordnet ist. Selbstverständlich können auch noch weitere im Maschinengehäuse 1 angeordnete Lagerstellen von Wellen oder bewegte Bauteile auf die erfindungsgemäße Art und Weise geschmiert werden. In weiteren Ausführungsformen kann die Wandung 5 auch becherförmig, freistehend auf einer Bodenfläche des Maschinengehäuses 1 angeformt sein, ohne einen direkten Kontakt zu den Seitenwänden 1' aufzuweisen. In diesem Fall ist wird die Mulde 6 nur von der Wandung 5 und der Bodenfläche des Maschinengehäuses gebildet.In the present embodiment, the further wave 4 , as already briefly noted above, an eccentric shaft for a variable-stroke valve drive, wherein the further shaft 4 parallel to the camshaft 2 is arranged. Of course, even more in the machine housing 1 arranged bearings of waves or moving components are lubricated in the manner according to the invention. In further embodiments, the wall 5 Also cup-shaped, free-standing on a bottom surface of the machine housing 1 be formed without direct contact with the side walls 1' exhibit. In this case is the trough 6 only from the wall 5 and the bottom surface of the machine housing is formed.

2 zeigt den gleichen Aufbau von 1, jedoch ohne Nockenwelle 2 und ohne weitere Welle 4. Für gleiche Bauteile gelten die gleichen Bezugsziffern. 2 shows the same structure of 1 , but without camshaft 2 and without further wave 4 , The same reference numbers apply to the same components.

Aufgrund der erfindungsgemäßen Ausgestaltung werden die Herstell- bzw. Fertigungskosten für ein gattungsgemäßes Maschinengehäuse reduziert, da keine Schmiermittelbohrungen bzw. separate Schmiermittelspritzdüsen für das Lager 3 und/oder die Außenverzahnung 4'' notwendig sind. Auch wird der Schmiermittelbedarf des Maschinengehäuses 1 deutlich reduziert, wodurch die Schmiermittelpumpe baulich verkleinert werden kann. Hierdurch sind Kosteneinsparpotentiale realisiert. Ferner ist der Energiebedarf einer kleineren Schmiermittelpumpe geringer, wodurch der Kraftstoffverbrauch beim Betrieb der Brennkraftmaschine reduziert ist.Due to the embodiment of the invention, the manufacturing or manufacturing costs for a generic machine housing are reduced because no lubricant holes or separate lubricant spray nozzles for the camp 3 and / or the external teeth 4 '' necessary. Also, the lubricant requirement of the machine housing 1 significantly reduced, whereby the lubricant pump can be structurally reduced. As a result, cost savings potentials are realized. Furthermore, the energy requirement of a smaller lubricant pump is lower, whereby the fuel consumption during operation of the internal combustion engine is reduced.

11
Maschinengehäusemachine housing
1'1'
Teilungsebeneparting plane
1''1''
Außenwandouter wall
22
Nockenwellecamshaft
33
Lagercamp
44
Weitere WelleFurther wave
4'4 '
Zahnradsegmentgear segment
4''4 ''
Außenverzahnungexternal teeth
55
Wandungwall
66
Muldetrough

Claims (3)

Maschinengehäuse (1), insbesondere ein Zylinderkopf für eine Brennkraftmaschine, in dem eine Nockenwelle (2), deren Lager (3) von einem unter Druck stehenden Schmiermittel beaufschlagt sind, sowie eine weitere Welle (4), die in zumindest einem weiteren Lager (5) drehbar gelagert ist, angeordnet sind, dadurch gekennzeichnet, dass das Maschinengehäuse (1) eine Wandung (5) aufweist, die in Einbaulage des Maschinengehäuses (1) aus einem Lager (3) ausgetretenes und/oder in dem Maschinengehäuse (1) verspritztes Schmiermittel auffängt, wobei das weitere Lager (5) zumindest abschnittsweise in dem aufgefangenen Schmiermittel angeordnet ist.Machine housing ( 1 ), in particular a cylinder head for an internal combustion engine, in which a camshaft ( 2 ), whose stock ( 3 ) are acted upon by a pressurized lubricant, and another wave ( 4 ) in at least one other warehouse ( 5 ) is rotatably mounted, are arranged, characterized in that the machine housing ( 1 ) a wall ( 5 ), which in the installation position of the machine housing ( 1 ) from a warehouse ( 3 ) leaked and / or in the machine housing ( 1 ) squeezes spilled lubricant, the further bearing ( 5 ) is arranged at least partially in the collected lubricant. Maschinengehäuse nach Patentanspruch 1, dadurch gekennzeichnet, dass die weitere Welle (4) eine weitgehend parallel zur Nockenwelle angeordnete Welle mit zumindest einer radialen Steuerbahn ist.Machine housing according to claim 1, characterized in that the further shaft ( 4 ) is a shaft arranged largely parallel to the camshaft with at least one radial control track. Maschinengehäuse nach Patentanspruch 1 oder 2, dadurch gekennzeichnet, dass die weitere Welle (4) eine Steuerwelle für einen hubvariablen Ventiltrieb ist.Machine housing according to claim 1 or 2, characterized in that the further shaft ( 4 ) is a control shaft for a variable-stroke valve train.
DE200410050056 2004-10-14 2004-10-14 Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support Withdrawn DE102004050056A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200410050056 DE102004050056A1 (en) 2004-10-14 2004-10-14 Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support
EP20050019395 EP1666714B1 (en) 2004-10-14 2005-09-07 Combustion engine block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410050056 DE102004050056A1 (en) 2004-10-14 2004-10-14 Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support

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DE102004050056A1 true DE102004050056A1 (en) 2006-04-27

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DE200410050056 Withdrawn DE102004050056A1 (en) 2004-10-14 2004-10-14 Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support

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DE (1) DE102004050056A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915233A1 (en) * 2007-04-20 2008-10-24 Renault Sas Autonomous lubricating system for motor vehicle, has lubricant circuit between top and bottom point of cylinder head, and channeling system above cam shaft for realizing lubrication of mechanical parts of cylinder head with descending flow

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DE1960833A1 (en) * 1969-12-04 1971-06-09 Daimler Benz Ag Cylinder head of a valve-controlled reciprocating internal combustion engine
DE2643628A1 (en) * 1975-10-09 1977-04-14 Fiat Veicoli Ind V-COMBUSTION ENGINE
DE3009062C2 (en) * 1980-03-08 1982-09-16 Ford-Werke AG, 5000 Köln Cylinder head for an internal combustion engine
DE8326935U1 (en) * 1983-09-20 1987-10-22 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
EP0283911A2 (en) * 1987-03-27 1988-09-28 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Cylinder head for an internal-combustion engine
DE3539216C2 (en) * 1985-01-18 1990-04-19 Toyota Jidosha K.K., Toyota, Aichi, Jp
DE3346446C2 (en) * 1983-12-22 1992-02-20 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln, De
DE4312497A1 (en) * 1993-04-16 1994-10-20 Fichtel & Sachs Ag Internal combustion engine with overhead camshaft and vertical crankshaft
DE19510273A1 (en) * 1994-05-19 1995-11-23 Outboard Marine Corp Four-stroke internal combustion engine with elimination of contaminated oil
DE19944293A1 (en) * 1998-09-21 2000-03-23 Gen Motors Corporotion Detroit Engine lubrication system

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JPS5967509U (en) * 1982-10-27 1984-05-08 本田技研工業株式会社 Camshaft bearing device in internal combustion engine
EP0638706A1 (en) * 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Valve actuating mechanism of an internal combustion engine
MY120554A (en) * 1997-10-29 2005-11-30 Honda Motor Co Ltd Valve operating system in internal combustion engine
DE10226300B4 (en) * 2002-06-10 2004-09-30 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Device for the variable actuation of valves by means of cams for internal combustion engines

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960833A1 (en) * 1969-12-04 1971-06-09 Daimler Benz Ag Cylinder head of a valve-controlled reciprocating internal combustion engine
DE2643628A1 (en) * 1975-10-09 1977-04-14 Fiat Veicoli Ind V-COMBUSTION ENGINE
DE3009062C2 (en) * 1980-03-08 1982-09-16 Ford-Werke AG, 5000 Köln Cylinder head for an internal combustion engine
DE8326935U1 (en) * 1983-09-20 1987-10-22 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
DE3346446C2 (en) * 1983-12-22 1992-02-20 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln, De
DE3539216C2 (en) * 1985-01-18 1990-04-19 Toyota Jidosha K.K., Toyota, Aichi, Jp
EP0283911A2 (en) * 1987-03-27 1988-09-28 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Cylinder head for an internal-combustion engine
DE4312497A1 (en) * 1993-04-16 1994-10-20 Fichtel & Sachs Ag Internal combustion engine with overhead camshaft and vertical crankshaft
DE19510273A1 (en) * 1994-05-19 1995-11-23 Outboard Marine Corp Four-stroke internal combustion engine with elimination of contaminated oil
DE19944293A1 (en) * 1998-09-21 2000-03-23 Gen Motors Corporotion Detroit Engine lubrication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915233A1 (en) * 2007-04-20 2008-10-24 Renault Sas Autonomous lubricating system for motor vehicle, has lubricant circuit between top and bottom point of cylinder head, and channeling system above cam shaft for realizing lubrication of mechanical parts of cylinder head with descending flow

Also Published As

Publication number Publication date
EP1666714B1 (en) 2011-08-24
EP1666714A3 (en) 2010-08-11
EP1666714A2 (en) 2006-06-07

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8127 New person/name/address of the applicant

Owner name: BAYERISCHE MOTOREN WERKE AG, 80809 MUENCHEN, DE

Owner name: PEUGEOT CITROEN AUTOMOBILES S.A., VELIZY-VILLA, FR

8128 New person/name/address of the agent

Representative=s name: BEETZ & PARTNER PATENTANWAELTE, 80538 MUENCHEN

R005 Application deemed withdrawn due to failure to request examination

Effective date: 20111015