DE3135683A1 - Basic bearing cover for the bearing of a crankshaft - Google Patents

Basic bearing cover for the bearing of a crankshaft

Info

Publication number
DE3135683A1
DE3135683A1 DE19813135683 DE3135683A DE3135683A1 DE 3135683 A1 DE3135683 A1 DE 3135683A1 DE 19813135683 DE19813135683 DE 19813135683 DE 3135683 A DE3135683 A DE 3135683A DE 3135683 A1 DE3135683 A1 DE 3135683A1
Authority
DE
Germany
Prior art keywords
bearing
crankshaft
bearing cover
light metal
base bearing
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Withdrawn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
DE19813135683
Other languages
German (de)
Inventor
Hans 7065 Winterbach Brüggemann
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19813135683 priority Critical patent/DE3135683A1/en
Publication of DE3135683A1 publication Critical patent/DE3135683A1/en
Withdrawn legal-status Critical Current

Links

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
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity

Abstract

The invention relates to a basic bearing cover for the bearing of a crankshaft in the crankcase of an internal combustion engine. The basic bearing cover is composed of light alloy, into which an iron core is cast in strip form.

Description

"Grundlagerdeckel für die Lagerung"Basic bearing cover for storage

einer Kurbelwelle" Die Erfindung bezieht sich auf einen Grundlagerdeckel für die Lagerung einer Kurbelwelle im insbesondere aus Leichtmetall bestehenden Kurbelgehäuse einer Brennkraftmaschine. a crankshaft "The invention relates to a base bearing cap for the storage of a crankshaft in particular made of light metal Crankcase of an internal combustion engine.

Zur Gewichtsreduzierung bei Brennkraftmaschinen, insbesondere solchen aus Leichtmetall, ist man bestrebt, möglichst auch die seither noch aus Stahl bestehenden Teile in Leichtmetall auszuführen. Überlegungen dahingehend, die aus Stahl bestehenden Grundlagerdeckel aus Leichtmetall zu fertigen, scheiterten an dem Umstand, daß Leichtmetall gegenüber Stahl einen nahezu doppelt so hohen Ausdehnungskoeffizienten hat und sich die höhere Wärmedehnung in unzulässigen Lagerspielen auswirkt. Bei kalter Brennkraftmaschine ist das Lagerspiel zu klein, so daß größere Reibungsverluste entstehen, im Warmzustand ist das Lagerspiel -zu groß und verursacht Geräusche.To reduce the weight of internal combustion engines, especially those made of light metal, one endeavors, if possible, those that have been made of steel since then Executing parts in light metal. Considerations as to which made of steel To manufacture base bearing caps from light metal failed because of the fact that light metal has an expansion coefficient that is almost twice as high as that of steel the higher thermal expansion affects inadmissible bearing clearances. When the internal combustion engine is cold if the bearing clearance is too small, so that greater friction losses occur in the hot state the bearing play is too big and makes noises.

Der Erfindung liegt die Aufgabe zugrunde, die geschilderten Schwierigkeiten zu überwinden, und in Lösung dieser Aufgabe besteht die Erfindung darin, daß der Grundlagerdeckel aus Leichtmetall besteht und in ihn ein aus einem Material mit einem kleineren Ausdehnungskoeffizienten, z.B. Eisen, bestehender Kern in Streifenform eingegossen ist, der gemäß einem weiteren Merkmal der Erfindung parallel zur unteren Fläche des Grundlagerdeckels liegt.The invention is based on the problem outlined above to overcome, and in solving this problem, the invention is that the Base bearing cover off Light metal consists and in it one of one Material with a smaller expansion coefficient, e.g. iron, existing core is cast in strip form, according to a further feature of the invention is parallel to the lower surface of the base bearing cover.

Durch den eingegossenen Kern gelingt es, durch eine Art Bimetalleffekt derart auf den Leichtmetallwerkstoff Einfluß zu nehmen, daß das Lagerspiel vor allem in vertikaler Richtung über den gesamten Temperaturbereich konstant gehalten werden kann. Der Kern beeinträchtigt die angestrebte Gewichtsreduzierung nur unwesentlich.The cast-in core enables a kind of bimetal effect to influence the light metal material in such a way that the bearing play above all be kept constant in the vertical direction over the entire temperature range can. The core only insignificantly affects the desired weight reduction.

In der Zeichnung ist ein Grundlagerdeckel in einem Ausführungsbeispiel dargestellt.In the drawing is a base bearing cover in one embodiment shown.

Es zeigen: Fig. 1 eine Ansicht auf einen am Kurbelgehäuse einer Brennkraftmaschine befestigten Grundlagerdeckel aus Leichtmetall und Fig. 2 einen Schnitt durch den Grundlagerdeckel nach der Linie II-II aus Fig. 1.They show: FIG. 1 a view of one on the crankcase of an internal combustion engine attached base bearing cover made of light metal and FIG. 2 shows a section through the Base bearing cover according to the line II-II from Fig. 1.

Der Grundlagerdeckel 1 für die Lagerung einer Kurbelwelle in einem Kurbelgehäuse 2 einer Brennkraftmaschine aus Leichtmetall besteht ebenfalls aus Leichtmetall, z.B. Aluminium.The basic bearing cover 1 for the storage of a crankshaft in one Crankcase 2 of an internal combustion engine made of light metal also consists of Light metal, e.g. aluminum.

Um zu erreichen, daß mit diesem Grundlagerdeckel 1 Lagerspiele eingehalten werden können wie bei einem Grundlagerdeckel aus Stahl, ist in den Grundlagerdeckel ein Kern 3 aus Eisen in Streifenform derart eingegossen, daß er parallel zur unteren Fläche des Grundlagerdeckels liegt.In order to achieve that with this basic bearing cap 1 bearing clearances are observed can be as with a base bearing cap made of steel, is in the base bearing cap a core 3 made of iron in the form of a strip cast in such a way that it is parallel to the lower Surface of the base bearing cover.

LeerseiteBlank page

Claims (2)

Ansprüche Grundlagerdeckel für die Lagerung einer Kurbelwelle im insbesondere aus Leichtmetall bestehenden Kurbelgehäuse einer Brennkraftmaschine, d a d u r c h g e k e n n z e i c h n e t, daß er aus Leichtmetall besteht und in ihn ein aus einem Material mit einem kleineren Ausdehnungskoeffizienten, z.B. Eisen, bestehender Kern (3) in Streifenform eingegossen ist. Claims base bearing cover for the storage of a crankshaft in in particular made of light metal crankcase of an internal combustion engine, d u r c h e k e n n n z e i c h n e t that it is made of light metal and in it is made of a material with a smaller expansion coefficient, e.g. iron, existing core (3) is cast in strip form. 2. Grundlagerdeckel nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß der Kern (3) parallel zur unteren Fläche des Grundlagerdekels (i) liegt. 2. base bearing cap according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the core (3) is parallel to the lower surface of the base bearing cover (i) lies.
DE19813135683 1981-09-09 1981-09-09 Basic bearing cover for the bearing of a crankshaft Withdrawn DE3135683A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813135683 DE3135683A1 (en) 1981-09-09 1981-09-09 Basic bearing cover for the bearing of a crankshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813135683 DE3135683A1 (en) 1981-09-09 1981-09-09 Basic bearing cover for the bearing of a crankshaft

Publications (1)

Publication Number Publication Date
DE3135683A1 true DE3135683A1 (en) 1983-03-24

Family

ID=6141209

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813135683 Withdrawn DE3135683A1 (en) 1981-09-09 1981-09-09 Basic bearing cover for the bearing of a crankshaft

Country Status (1)

Country Link
DE (1) DE3135683A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145393A2 (en) * 1983-12-10 1985-06-19 Ae Plc The reinforcement of engine blocks
DE3426208C1 (en) * 1984-07-17 1986-03-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Crankshaft bearings for internal combustion engines
DE3829163A1 (en) * 1988-08-27 1989-06-15 Daimler Benz Ag Crankshaft bearing for an internal combustion engine
DE3911822A1 (en) * 1989-04-11 1990-10-18 Bayerische Motoren Werke Ag Light metal cast bearing lid for piston machines - has moulded body of short fibres reinforced with long fibres
DE4330565C1 (en) * 1993-09-09 1994-08-18 Porsche Ag Crankshaft bearing
DE4308578A1 (en) * 1993-03-18 1994-09-22 Hackewitz Friedrich W Von Dr I Housing equipped with a radial bearing
DE19532326C1 (en) * 1995-09-01 1997-01-02 Daimler Benz Ag Crankcase made of light metal for IC engine
DE19535497A1 (en) * 1995-09-25 1997-03-27 Audi Ag Internal combustion piston engine crankshaft bearing
DE10001780A1 (en) * 2000-01-18 2001-08-02 Bayerische Motoren Werke Ag Divided shaft bearing fitting, with non-ferrous metal bearing cap reinforced with hard reinforcing material
DE10205798A1 (en) * 2002-02-13 2003-09-04 Federal Mogul Wiesbaden Gmbh Metallic insert for inserting in an upper part and/or a lower part or a reinforcing rib of a bearing block made of cast aluminum alloy or cast aluminum has on its outer peripheral surface a cover layer made of aluminum alloy or aluminum
DE102012204484A1 (en) 2012-03-21 2013-09-26 Bayerische Motoren Werke Aktiengesellschaft Bearing cover e.g. light metal bearing block for crankshaft in crankcase of internal combustion engine, has bearing support that encloses bearing bore consists of light metal selected from aluminum alloy

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145393A3 (en) * 1983-12-10 1986-04-23 Ae Plc The reinforcement of engine blocks
US4643145A (en) * 1983-12-10 1987-02-17 Ae Plc Reinforcement of engine blocks
EP0145393A2 (en) * 1983-12-10 1985-06-19 Ae Plc The reinforcement of engine blocks
DE3426208C1 (en) * 1984-07-17 1986-03-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Crankshaft bearings for internal combustion engines
DE3829163A1 (en) * 1988-08-27 1989-06-15 Daimler Benz Ag Crankshaft bearing for an internal combustion engine
DE3911822A1 (en) * 1989-04-11 1990-10-18 Bayerische Motoren Werke Ag Light metal cast bearing lid for piston machines - has moulded body of short fibres reinforced with long fibres
DE4308578C2 (en) * 1993-03-18 1998-01-29 Hackewitz Friedrich W Von Dr I Housing equipped with a radial bearing
DE4308578A1 (en) * 1993-03-18 1994-09-22 Hackewitz Friedrich W Von Dr I Housing equipped with a radial bearing
DE4330565C1 (en) * 1993-09-09 1994-08-18 Porsche Ag Crankshaft bearing
US5609422A (en) * 1993-09-09 1997-03-11 Dr. Ing.H.C.F Porsche Ag Crankshaft bearing
DE19532326C1 (en) * 1995-09-01 1997-01-02 Daimler Benz Ag Crankcase made of light metal for IC engine
DE19535497A1 (en) * 1995-09-25 1997-03-27 Audi Ag Internal combustion piston engine crankshaft bearing
DE19535497C2 (en) * 1995-09-25 2003-07-24 Audi Ag Split plain bearing
DE10001780A1 (en) * 2000-01-18 2001-08-02 Bayerische Motoren Werke Ag Divided shaft bearing fitting, with non-ferrous metal bearing cap reinforced with hard reinforcing material
EP1118779A3 (en) * 2000-01-18 2002-01-23 Bayerische Motoren Werke Aktiengesellschaft Split bearing arrangement
DE10001780C2 (en) * 2000-01-18 2003-07-31 Bayerische Motoren Werke Ag Machine housing with split bearing arrangement
DE10205798A1 (en) * 2002-02-13 2003-09-04 Federal Mogul Wiesbaden Gmbh Metallic insert for inserting in an upper part and/or a lower part or a reinforcing rib of a bearing block made of cast aluminum alloy or cast aluminum has on its outer peripheral surface a cover layer made of aluminum alloy or aluminum
DE102012204484A1 (en) 2012-03-21 2013-09-26 Bayerische Motoren Werke Aktiengesellschaft Bearing cover e.g. light metal bearing block for crankshaft in crankcase of internal combustion engine, has bearing support that encloses bearing bore consists of light metal selected from aluminum alloy

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination