EP0283911A2 - Cylinder head for an internal-combustion engine - Google Patents

Cylinder head for an internal-combustion engine Download PDF

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Publication number
EP0283911A2
EP0283911A2 EP88104147A EP88104147A EP0283911A2 EP 0283911 A2 EP0283911 A2 EP 0283911A2 EP 88104147 A EP88104147 A EP 88104147A EP 88104147 A EP88104147 A EP 88104147A EP 0283911 A2 EP0283911 A2 EP 0283911A2
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EP
European Patent Office
Prior art keywords
cylinder head
hood
camshaft
oil
lubricating oil
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
Application number
EP88104147A
Other languages
German (de)
French (fr)
Other versions
EP0283911A3 (en
EP0283911B1 (en
Inventor
Christoph Schausberger
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
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.)
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Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0283911A2 publication Critical patent/EP0283911A2/en
Publication of EP0283911A3 publication Critical patent/EP0283911A3/en
Application granted granted Critical
Publication of EP0283911B1 publication Critical patent/EP0283911B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • 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
    • F01M9/106—Oil reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Abstract

In order to prevent lubricating oil being expelled from the reservoirs on the overhead camshafts in the cylinder heads of internal combustion engines with an oil reservoir located below each cam, the camshaft according to the invention is enclosed by a hood, thereby preventing the formation of oil spray and foamed oil getting into the crank casing. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung der im Oberbegriff des ersten Anspruchs angegebenen Art.The invention relates to a device of the type specified in the preamble of the first claim.

Aus der DE-PS 32 15 766 ist beispielsweise ein gat­tungsbildender Zylinderkopf bekannt. Hierbei sind unterhalb der Nocken Aussparungen im Zylinderkopf vorgesehen. Diese Aussparungen füllen sich im Betrieb der Brennkraftmaschine mit Schmieröl, insbesondere da die Nocken zusätzlich durch Spritzöl geschmiert werden.From DE-PS 32 15 766, for example, a generic cylinder head is known. Recesses are provided in the cylinder head below the cams. These cutouts fill with lubricating oil during operation of the internal combustion engine, in particular since the cams are additionally lubricated by spray oil.

Dieses Eintauchen eines jeden Nockens bei einer jeden Umdrehung der Nockenwelle hat den Nachteil, daß hier­durch Luft unter das Schmieröl gemischt wird und daß das Schmieröl dadurch verwirbelt wird und so im Nockenwel­lenbereich herumschleudert. Dadurch fließt verschäumtes Schmieröl über die Rücklaufbohrungen in den Ölsumpf und wird von dort wieder über die Schmierölpumpe in das Schmiersystem der Brennkraftmaschine befördert. Ver­schäumtes Schmieröl kann jedoch zu Lagerschäden führen. Darüber hinaus bestehen Probleme bei Verwendung von verschäumtem Schmieröl und dem Einbau von hydraulischen Ventilspielausgleichselementen. Letztere werden in ihrer Funktion beeinträchtigt, so daß es zu einem Ausfall der Ventilsteuerung und den damit verbundenen, bekannten Schäden führen kann.This immersion of each cam with each revolution of the camshaft has the disadvantage that air is mixed with the lubricating oil as a result and that the lubricating oil is swirled thereby and thus hurls around in the camshaft region. As a result, foamed lubricating oil flows into the oil sump via the return bores and is then conveyed from there via the lubricating oil pump into the lubrication system of the internal combustion engine. Foamed lubricating oil can, however, lead to bearing damage. There are also problems with the use of foamed lubricating oil and the installation of hydraulic valve lash adjusters. The latter are impaired in their function, so that it can lead to failure of the valve control and the associated known damage.

Aufgabe der vorliegenden Erfindung ist es, einen gat­tungsgemäßen Zylinderkopf dahingehend weiterzubilden, daß ohne Beeinträchtigung der Schmierung des Ventil­triebs die hierdurch hervorgerufene Ölverschäumung möglichst vermieden wird.The object of the present invention is to develop a generic cylinder head in such a way that the resulting oil foaming is avoided as far as possible without impairing the lubrication of the valve train.

Diese Aufgabe wird erfindungsgemäß durch die kennzeich­nenden Merkmale des ersten Anspruchs gelöst. Aufgrund der erfindungsgemäß vorgeschlagenen Haube können die Nocken der Nockenwelle praktisch nur in einem eng begrenzten Raum Schmieröl herumschleudern und somit auch nur geringe Luftmengen dem Schmieröl beimischen. Das aus dem Ölreservoir abfließende Schmieröl ist damit weit­gehend unverschäumt. Dies liegt daran, daß aus dem Ölreservoir nur Schmieröl dann abfließen kann, wenn das Reservoir überfüllt wird. Es wird nicht durch die ständig eintauchenden Nocken nach Art von Schaufeln entleert bzw. auf einem relativ niedrigen Niveau ge­halten. Gerade dadurch werden nämlich Luftanteile dem in den Ölsumpf zurückfließenden Schmieröl untergemischt.According to the invention, this object is achieved by the characterizing features of the first claim. Because of the hood proposed according to the invention, the cams of the camshaft can practically only throw lubricating oil around in a narrowly limited space and thus also only add small amounts of air to the lubricating oil. The lubricating oil flowing out of the oil reservoir is largely unfoamed. This is because only lubricating oil can flow out of the oil reservoir if the reservoir is overfilled. It is not emptied or kept at a relatively low level by the constantly immersing cams in the manner of blades. This is precisely the reason why air components are mixed in with the lubricating oil flowing back into the oil sump.

Die Weiterbildung nach Anspruch 2 beschreibt eine vorteilhafte Ausführungsform der Haube. Sie ist leicht herzustellen und braucht nur entsprechend der Nocken­wellenlänge abgelenkt zu werden.The development according to claim 2 describes an advantageous embodiment of the hood. It is easy to manufacture and only needs to be deflected according to the camshaft length.

Die Weiterbildung nach Anspruch 3 hat den Vorteil, daß die Haube die Nockenwelle eng umschließen kann, so daß zum einen der von der Haube benötigte Bauraum verringert wird und zum andern nur geringe Mengen Luft dem Öl untergemischt werden können.The development according to claim 3 has the advantage that the hood can tightly enclose the camshaft, so that on the one hand the installation space required by the hood is reduced and on the other hand only small amounts of air can be mixed into the oil.

Die Weiterbildung nach den Ansprüchen 4 und 5 beschreibt eine vorteilhafte Befestigungsmöglichkeit für die Haube. Prinzipiell ist es auch möglich, die Haube an den Lagerbrücken oder am Zylinderkopf zu befestigen, bei­ spielsweise über die Lagerschrauben bei geteilten Lagerbrücken.The development according to claims 4 and 5 describes an advantageous fastening option for the hood. In principle, it is also possible to attach the hood to the bearing brackets or to the cylinder head, at for example via the bearing bolts for split bearing bridges.

Durch die Weiterbildung nach Anspruch 6 wird eine Gewichtsreduzierung der Haube erzielt. Darüber hinaus besitzt sie genügend Elastizität, um beispielsweise gemäß Anspruch 5 befestigt zu werden.Through the development according to claim 6, a weight reduction of the hood is achieved. In addition, it has enough elasticity to be attached, for example, according to claim 5.

Es sei noch darauf hingewiesen, daß es sich bei der erfindungsgemäßen Haube nicht um die Ventildeckelhaube handelt, sondern um eine Haube, die ausschließlich dazu dient, das Herumschleudern von Schmiermittel durch die Nockenwelle und damit auch das Untermischen von Luft beim Eintauchen der Nocken in das Schmierölreservoir zu verhindern. Der zwischen Ventildeckelhaube und erfin­dungsgemäß angeordneter Haube verbleibende Raum ist hierbei nicht zwangsläufig schmiermittelfrei, sondern steht beispielsweise über die Ölrücklaufbohrungen aus dem Zylinderkopf ins Kurbelgehäuse oder über den Ölein­füllstutzen in der Ventildeckelhaube mit dem Ölsumpf im Kurbelgehäuse in Verbindung.It should also be pointed out that the hood according to the invention is not the valve cover hood, but rather a hood which is used exclusively for throwing lubricant around through the camshaft and thus also for mixing air in when the cam is immersed in the lubricating oil reservoir to prevent. The space remaining between the valve cover and the hood arranged according to the invention is not necessarily lubricant-free, but is connected, for example, to the oil sump in the crankcase via the oil return bores from the cylinder head into the crankcase or via the oil filler neck in the valve cover.

Im folgenden wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher beschrieben.The invention is described in more detail below with the aid of a preferred exemplary embodiment.

In der einzigen Abbildung ist schematisiert ein Quer­schnitt durch einen Teil eines Zylinderkopfes auf Höhe eines Gaswechselventiles dargestellt. Hierbei ist mit 1 der Zylinderkopf, mit 2 die Nockenwelle, mit 3 das Gaswechselventil, von dem nur der Ventilschaft darge­stellt ist, sowie mit 4 der zwischen Ventilschaft und Nockenwelle 2 angeordnete Tassenstößel bezeichnet ist. Gehalten wird die Nockenwelle von Lagerbrücken 6, die über Schrauben 7 mit dem Zylinderkopf verbunden sind. Unterhalb eines jeden Nockens 5 der Nockenwelle 2 weist der Zylinderkopf eine Aussparung 8 auf. Diese Aussparung ist in Betrieb der Brennkraftmaschine mit Schmieröl gefüllt. Das überschüssige Schmieröl läuft über nicht dargestellte Rücklaufbohrungen aus dem Zylinderkopf in das Kurbelgehäuse zurück.In the single figure, a cross section through part of a cylinder head at the level of a gas exchange valve is shown schematically. Here, 1 denotes the cylinder head, 2 the camshaft, 3 the gas exchange valve, of which only the valve stem is shown, and 4 the cup tappet arranged between the valve stem and camshaft 2. The camshaft is held by bearing bridges 6, which are connected to the cylinder head by screws 7. The cylinder head has a recess 8 below each cam 5 of the camshaft 2. This recess is filled with lubricating oil during operation of the internal combustion engine. The excess lubricating oil runs from the cylinder head back into the crankcase via return bores (not shown).

Abgedeckt gegenüber dem übrigen Raum im Zylinderkopf ist die Nockenwelle 2 von einer Haube 9. Diese Haube 9 ist im Querschnitt U-förmig ausgebildet und schmiegt sich nahe an die Lagerbrücken an. Gehalten wird sie über seitlich an jeder Lagerbrücke 6 angeordnete Nasen 10, die in Aussparungen 11 in der Haube eingreifen. Die Haube 9 selbst ist aus elastischem Material hergestellt und läßt sich deshalb leicht über die Nasen 10 schieben bzw. durch Spreizung wieder abziehen. Die Haubenränder 12 stützen sich auf den Zylinderkopf auf Höhe der Lagerbrücken ab.Covered with respect to the rest of the space in the cylinder head, the camshaft 2 is covered by a hood 9. This hood 9 is U-shaped in cross section and nestles close to the bearing bridges. It is held by lugs 10 arranged laterally on each bearing bridge 6, which engage in recesses 11 in the hood. The hood 9 itself is made of elastic material and can therefore be easily pushed over the lugs 10 or removed again by spreading. The hood edges 12 are supported on the cylinder head at the level of the bearing bridges.

Aufgrund dieser Hauben wird das von jedem Nocken 5 bei einer Umdrehung aus dem Ölreservoir 8 hochgeschleuderte Öl gegen die Innenseite der Haube geschleudert und kann deshalb nicht in dem von der Ventildeckelhaube begrenz­ten Raum umherfliegen und so auch in die Ölrücklaufboh­rung geraten. Aufgrund des relativ geringen Raumes unterhalb der Haube 9 ist dieser durch die Nockendrehung sehr stark mit Öl gefüllt, so daß hierdurch der bei jeder Nockenwellenumdrehung untergemischte Luftanteil in dem Schmieröl des Schmierölreservoirs relativ gering ist. Darüber hinaus wirken die Nocken 5 nicht als Schaufel, die das Reservoir 8 teilweise entleeren. Dieses kann vielmehr nur durch Überlauf auf ein be­stimmtes Niveau gehalten werden. Dadurch tritt auch hier nur entschäumtes Öl aus.Because of these hoods, the oil thrown up by each cam 5 in one revolution from the oil reservoir 8 is thrown against the inside of the hood and therefore cannot fly around in the space delimited by the valve cover hood and thus also get into the oil return bore. Due to the relatively small space below the hood 9, this is very heavily filled with oil due to the cam rotation, so that the proportion of air in the lubricating oil of the lubricating oil reservoir mixed with each camshaft revolution is relatively small. In addition, the cams 5 do not act as a blade, which partially empty the reservoir 8. Rather, this can only be kept at a certain level by overflow. As a result, only defoamed oil escapes here.

Claims (6)

1. Zylinderkopf für eine Brennkraftmaschine mit oben liegender Nockenwelle, die in Lagerbrücken im Zylinderkopf gelagert ist und deren Nocken bei jeder Umdrehung in einem unterhalb der Nockenwelle im Zylinderkopf gebildeten Ölreservoir eintauchen, dadurch gekennzeichnet, daß eine Haube (9) vor­gesehen ist, die die Nockenwelle (2) umschließt und deren Rand (12) bis auf die Höhe des Ölreservoirs reicht.1. Cylinder head for an internal combustion engine with an overhead camshaft, which is mounted in bearing bridges in the cylinder head and whose cams are immersed in an oil reservoir formed in the cylinder head below the camshaft, characterized in that a hood (9) is provided which supports the camshaft (2) encloses and whose edge (12) extends to the level of the oil reservoir. 2. Zylinderkopf nach Anspruch 1, dadurch gekennzeich­net,
daß die Haube (9) einen rechteckigen Querschnitt aufweist.2. Cylinder head according to claim 1, characterized in that
that the hood (9) has a rectangular cross section. 3. Zylinderkopf nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Haube (9) der Oberflächenkontur der Nockenwelle (2) und der Lagerbrücken (6) angepaßt ist.3. Cylinder head according to claim 1 or 2,
characterized in that the hood (9) is adapted to the surface contour of the camshaft (2) and the bearing bridges (6). 4. Zylinderkopf nach einem der vorangegangenen An­sprüche,
dadurch gekennzeichnet, daß die Haube (9) an den Lagerbrücken (6) gehalten ist.4. Cylinder head according to one of the preceding claims,
characterized in that the hood (9) is held on the bearing bridges (6). 5. Zylinderkopf nach Anspruch 4,
dadurch gekennzeichnet, daß als Halterung an den Lagerbrücken Nasen (10) vorgesehen sind, die in Aussparungen (11) der Haube (9) eingreifen, wobei sich der Haubenrand (12) auf dem Zylinderkopf (1) abstützt.5. Cylinder head according to claim 4,
characterized in that lugs (10) are provided as holders on the bearing bridges and engage in recesses (11) in the hood (9), the hood edge (12) being supported on the cylinder head (1). 6. Zylinderkopf nach einem der vorangegangenen An­sprüche,
dadurch gekennzeichnet, daß die Haube (9) aus Kunststoff hergestellt ist.6. Cylinder head according to one of the preceding claims,
characterized in that the hood (9) is made of plastic.
EP88104147A 1987-03-27 1988-03-16 Cylinder head for an internal-combustion engine Expired - Lifetime EP0283911B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3710078A DE3710078C1 (en) 1987-03-27 1987-03-27 Cylinder head for an internal combustion engine
DE3710078 1987-03-27

Publications (3)

Publication Number Publication Date
EP0283911A2 true EP0283911A2 (en) 1988-09-28
EP0283911A3 EP0283911A3 (en) 1989-07-12
EP0283911B1 EP0283911B1 (en) 1990-11-07

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ID=6324101

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Application Number Title Priority Date Filing Date
EP88104147A Expired - Lifetime EP0283911B1 (en) 1987-03-27 1988-03-16 Cylinder head for an internal-combustion engine

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EP (1) EP0283911B1 (en)
DE (1) DE3710078C1 (en)
ES (1) ES2018587B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004050056A1 (en) * 2004-10-14 2006-04-27 Bayerische Motoren Werke Ag 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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137561A1 (en) * 1991-11-15 1993-05-19 Audi Ag Cylinder head for IC engine - has oil catchment device which for each cam on camshaft has first catchment wall limiting with surrounding channel wall an oil feed channel
DE19712971B4 (en) * 1996-04-06 2006-05-11 Volkswagen Ag Cylinder head for an internal combustion engine
DE102012211458B3 (en) * 2012-07-03 2013-11-21 Schaeffler Technologies AG & Co. KG Lid with oil storage functionality for a housing of an electrohydraulic valve train of an internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR510763A (en) * 1920-02-26 1920-12-10 Rene Fonck Improvements to engine cam distribution
US1415067A (en) * 1920-02-07 1922-05-09 Packard Motor Car Co Hydrocarbon motor
US2881863A (en) * 1956-01-19 1959-04-14 Stanford A Fulton Apparatus for oiling over-head valves of engine
GB2049807A (en) * 1979-05-23 1980-12-31 Fiat Veicoli Ind Cylinder head for compressionignition internal combustion engine
US4534325A (en) * 1983-07-27 1985-08-13 Mazda Motor Corporation Cam shaft holding system for internal combustion engine
DE3602477A1 (en) * 1985-01-29 1986-07-31 Toyota Jidosha K.K., Toyota, Aichi CAMSHAFT BEARING
FR2582732A1 (en) * 1985-05-29 1986-12-05 Porsche Ag FIXING A HEAD COVER ON A CYLINDER HEAD

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DE7017466U (en) * 1970-05-09 1970-08-06 Teroson Gmbh ENGINE WITH CYLINDER HEAD COVER.
DE2263048A1 (en) * 1971-12-22 1973-06-28 Honda Motor Co Ltd FOUR-STROKE PISTON ENGINE WITH EXTERNAL IGNITION
DE3215766C2 (en) * 1982-04-28 1984-06-07 Daimler-Benz Ag, 7000 Stuttgart Lubricating oil circuit for reciprocating internal combustion engines
US4593659A (en) * 1985-06-28 1986-06-10 Cummins Engine Company, Inc. Engine valve cover

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415067A (en) * 1920-02-07 1922-05-09 Packard Motor Car Co Hydrocarbon motor
FR510763A (en) * 1920-02-26 1920-12-10 Rene Fonck Improvements to engine cam distribution
US2881863A (en) * 1956-01-19 1959-04-14 Stanford A Fulton Apparatus for oiling over-head valves of engine
GB2049807A (en) * 1979-05-23 1980-12-31 Fiat Veicoli Ind Cylinder head for compressionignition internal combustion engine
US4534325A (en) * 1983-07-27 1985-08-13 Mazda Motor Corporation Cam shaft holding system for internal combustion engine
DE3602477A1 (en) * 1985-01-29 1986-07-31 Toyota Jidosha K.K., Toyota, Aichi CAMSHAFT BEARING
FR2582732A1 (en) * 1985-05-29 1986-12-05 Porsche Ag FIXING A HEAD COVER ON A CYLINDER HEAD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004050056A1 (en) * 2004-10-14 2006-04-27 Bayerische Motoren Werke Ag 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

Also Published As

Publication number Publication date
DE3710078C1 (en) 1988-02-25
EP0283911A3 (en) 1989-07-12
EP0283911B1 (en) 1990-11-07
ES2018587B3 (en) 1991-04-16

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