EP1378648A1 - Bearing support for a crank shaft of an internal combustion engine - Google Patents

Bearing support for a crank shaft of an internal combustion engine Download PDF

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Publication number
EP1378648A1
EP1378648A1 EP02100768A EP02100768A EP1378648A1 EP 1378648 A1 EP1378648 A1 EP 1378648A1 EP 02100768 A EP02100768 A EP 02100768A EP 02100768 A EP02100768 A EP 02100768A EP 1378648 A1 EP1378648 A1 EP 1378648A1
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EP
European Patent Office
Prior art keywords
bearing
cylinder block
chair
block
internal combustion
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Granted
Application number
EP02100768A
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German (de)
French (fr)
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EP1378648B1 (en
Inventor
Dietmar Ulrich Laufenberg
Hans Walter Metz
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Ford Global Technologies LLC
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Ford Global Technologies LLC
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Priority to EP20020100768 priority Critical patent/EP1378648B1/en
Priority to DE50211551T priority patent/DE50211551D1/en
Publication of EP1378648A1 publication Critical patent/EP1378648A1/en
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Publication of EP1378648B1 publication Critical patent/EP1378648B1/en
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    • 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

Definitions

  • the invention relates to a bearing block for a crankshaft Internal combustion engine, especially in a row or V arrangement.
  • combustion results in a known manner Gas power. Between the crankshaft or its bearing and cylinder head, the Gas power can be absorbed. This acts on the crankshaft via the pistons and the connecting rods and unfolds power components on the crankshaft that both can be directed downwards as well as sideways.
  • the safe and permanent Inclusion of these gas forces is a determining factor in the efficiency of the Internal combustion engine and its durability.
  • One way to optimize is Use a bearing chair that is screwed against the cylinder block from below is and due to a suitable frame construction to stiffen the Internal combustion engine leads.
  • DE 296 09 950 describes a bearing bracket for a crankshaft of an internal combustion engine known that is screwed against the cylinder block from below.
  • the camp chair forms the lower half of the holes for the crankshaft bearings, while the upper Half is formed by the bearing cap, which is screwed onto the bearing bracket become.
  • the bearing caps are on the side facing the cylinder block screwed to the storage chair.
  • the bearing cover is outside the assembly area a sealing surface for mounting the bearing block on the internal combustion engine or the cylinder block provided.
  • crankshaft bearing cover with the cylinder block outer surfaces to screw to the system rigidity and the resulting lateral gas forces to be able to record better.
  • This arrangement also serves the purpose of Gas forces on the crankshaft to vibrations transmitted to the bearing blocks to reduce.
  • the Has bearing cap for the crankshaft on which bearing cap contact surfaces for Bearing chair are formed and on the side facing the cylinder block of the camp chair are attached, the camp chair providing a surface for assembly of the internal combustion engine, which surrounds the bearing cover provided according to the invention, the bearing cap contact surfaces compared to the To arrange the bearing cover surrounding area increased. This results in inevitably that between the bearing cap contact surfaces and the surrounding Surface a transition shoulder must be formed. This causes stiffening of the camp chair. In addition, this leads to the fact that the bearing cap at Production of the storage chair can be cast with.
  • the bearing caps have bores for the cylinder block mounting screws so that the transition shoulder migrates outwards between the bearing cap contact surface and the surrounding surface and thus also the transition shoulder between the mentioned surface further outside lies.
  • the surrounding surface of the Bearing chair formed as a sealing surface to the cylinder block.
  • the sealing surface for In this configuration, the oil pan is on the underside of the bearing chair arranged.
  • the Bearing bracket fastening screws carried out through the cylinder block and directly screwed to the cylinder head. This has the advantage that the cylinder block no longer under tension and pressure but only under pressure. In addition, separate cylinder head bolts are no longer required.
  • Fig. 1 shows schematically a section through the middle of a Bearing cover attachment runs.
  • the internal combustion engine 1 consists in a known manner of a bearing chair 2, the Cylinder block 3 and the cylinder head 4.Oil pan 7 and cylinder head cover 8 are also only shown schematically.
  • Bearing caps 5 are on the bearing chair 2 screwed on by means of bearing cap fastening screws 51. Between camp chair 2 and the bearing caps 5 are the bores 52 for the crankshaft bearings (Main camp) provided. Approximately the lower half of the bearing bore 52 is in the Bearing chair while the top half is attached to the bearing cap. Between Bearing chair 2 and bearing cover 5, the bearing cover contact surfaces 53 are formed. These can be machined surfaces or - during the Production of the bearing chair 2 molded bearing caps 5 - around broken surfaces act.
  • the bearing cap contact surfaces 53 are opposite the sealing surface 54 is raised, is located closer to the cylinder head 4 than the sealing surface 54, is inevitably a transition shoulder between bearing cover contact surfaces 53 and form sealing surface 54.
  • the sealing surface 54 is preferred here shown embodiment up to the bore 9, 10 of the fastening screws 6 in Extending towards the crankshaft bearing bore 52 is the transition shoulder between the bearing cap contact surfaces 53 and the sealing surface 54 between the Bearing cap mounting screws 51 and the cylinder block mounting screws 6 arranged. This allows the transition shoulder on one or more of the Bearing cover 5 as a lateral guide approximately perpendicular to the sealing surface 54 between Bearing bracket 2 and cylinder block 3 are formed.
  • the transition shoulder between the sealing surface 54 and bearing cap contact surface 53 also between the bore for the Cylinder block mounting screws 6 and bearing wall outer wall 55 are formed his.
  • the transition shoulder between the Bearing cover contact surface 53 and sealing surface 54 formed fitting surfaces are preferred trained in alignment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The cradle (2) fitted in an engine (1) by mounting bolts (6) has bearing covers (5) on the cylinder block side and a sealing surface between the cradle and the cylinder block, surrounding the cradle. The resting surface (53) between the bearing cover and the cradle is raised above the level of the surrounding sealing surface (54).

Description

Die Erfindung betrifft einen Lagerstuhl für eine Kurbelwelle einer Brennkraftmaschine, insbesondere in Reihen- oder V-Anordnung.The invention relates to a bearing block for a crankshaft Internal combustion engine, especially in a row or V arrangement.

Bei einer Brennkraftmaschine entstehen durch Verbrennung in bekannter Weise eine Gaskraft. Zwischen Kurbelwelle bzw. deren Lagerung und Zylinderkopf muß die Gaskraft aufgenommen werden. Diese wirkt auf die Kurbelwelle über die Kolben und die Pleuelstangen ein und entfaltet Kraftkomponenten an der Kurbelwelle, die sowohl nach unten als auch seitwärts gerichtet sein können. Die sichere und dauerhafte Aufnahme dieser Gaskräfte ist mitbestimmend für die Effizienz der Brennkraftmaschine und deren Haltbarkeit. Eine Möglichkeit zur Optimierung ist die Verwendung eines Lagerstuhls, der von unten gegen den Zylinderblock geschraubt wird und der aufgrund einer geeigneten Rahmenkonstruktion zur Versteifung der Brennkraftmaschine führt.In an internal combustion engine, combustion results in a known manner Gas power. Between the crankshaft or its bearing and cylinder head, the Gas power can be absorbed. This acts on the crankshaft via the pistons and the connecting rods and unfolds power components on the crankshaft that both can be directed downwards as well as sideways. The safe and permanent Inclusion of these gas forces is a determining factor in the efficiency of the Internal combustion engine and its durability. One way to optimize is Use a bearing chair that is screwed against the cylinder block from below is and due to a suitable frame construction to stiffen the Internal combustion engine leads.

Aus DE 296 09 950 ist ein Lagerstuhl für eine Kurbelwelle einer Brennkraftmaschine bekannt, der von unten gegen den Zylinderblock geschraubt wird. Der Lagerstuhl bildet die untere Hälfte der Bohrungen für die Kurbelwellenlager, während die obere Hälfte durch Lagerdeckel gebildet wird, die auf den Lagerstuhl aufgeschraubt werden. Zwischen Lagerstuhl und Lagerdeckel sind Lagerdeckelanlageflächen ausgebildet. Die Lagerdeckel werden auf der dem Zylinderblock zugewandten Seite mit dem Lagerstuhl verschraubt. Außerhalb des Montagebereichs der Lagerdeckel ist eine Dichtfläche zur Montage des Lagerstuhls an der Brennkraftmaschine bzw. an deren Zylinderblock vorgesehen. Die Verschraubung des Lagerstuhls mit dem Zylinderblock erfolgt mittels Zylinderblockbefestigungsschrauben, die sowohl in den Fluchtlinien der Lagerdeckelbefestigungsschrauben als auch in den Zylindermittenebenen angeordnet sind. Dies führt einerseits zu einer aufwendigen Formgebung des Lagerstuhls bzw. des Zylinderblocks, andererseits kann die Aufnahme insbesondere der seitlichen Komponenten der Gaskraft noch verbessert werden. DE 296 09 950 describes a bearing bracket for a crankshaft of an internal combustion engine known that is screwed against the cylinder block from below. The camp chair forms the lower half of the holes for the crankshaft bearings, while the upper Half is formed by the bearing cap, which is screwed onto the bearing bracket become. There are bearing cover contact surfaces between the bearing bracket and the bearing cover educated. The bearing caps are on the side facing the cylinder block screwed to the storage chair. The bearing cover is outside the assembly area a sealing surface for mounting the bearing block on the internal combustion engine or the cylinder block provided. The screwing of the bearing chair with the Cylinder block is made using cylinder block mounting screws, which are both in the Alignment lines of the bearing cap fastening screws as well as in the Cylinder center planes are arranged. On the one hand, this leads to a complex Shape of the bearing block or the cylinder block, on the other hand, the Recording especially the side components of the gas force still improved become.

Bekannt ist es auch den Kurbelwellenlagerdeckel mit den Zylinderblockaußenflächen zu verschrauben, um die Systemsteifigkeit und die entstehenden seitlichen Gaskräfte besser aufnehmen zu können. Diese Anordnung dient auch dazu die durch die Gaskräfte über die Kurbelwelle auf die Lagerstühle übertragenen Schwingungen zu reduzieren.It is also known the crankshaft bearing cover with the cylinder block outer surfaces to screw to the system rigidity and the resulting lateral gas forces to be able to record better. This arrangement also serves the purpose of Gas forces on the crankshaft to vibrations transmitted to the bearing blocks to reduce.

Eine verbesserte Aufnahme der Gaskraft insbesondere von deren seitlichen Komponenten sowie eine fertigungstechnische Vereinfachung war Zielsetzung der vorliegenden Erfindung.An improved absorption of the gas force, especially from its lateral Components as well as a manufacturing simplification was the goal of present invention.

Ausgehend von einem Lagerstuhl für eine Kurbelwelle einer Brennkraftmaschine, der Lagerdeckel für die Kurbelwelle aufweist, an denen Lagerdeckelanlageflächen zum Lagerstuhl hin ausgebildet sind und die an der dem Zylinderblock zugewandten Seite des Lagerstuhls angebracht sind, wobei der Lagerstuhl eine Fläche zur Montage an der Brennkraftmaschine aufweist, welche die Lagerdeckel umgibt, ist erfindungsgemäß vorgesehen, die Lagerdeckelanlageflächen gegenüber der die Lagerdeckel umgebenden Fläche erhöht anzuordnen. Dadurch ergibt sich zwangsläufig, daß zwischen den Lagerdeckelanlageflächen und der umgebenden Fläche eine Übergangsschulter ausgebildet sein muß. Hierdurch tritt eine Versteifung des Lagerstuhls ein. Außerdem führt dies dazu, daß die Lagerdeckel bei der Herstellung des Lagerstuhls mit angegossen werden können. Die angegossenen Lagerdeckel werden dann gezielt an entsprechend gekerbten Stellen gebrochen, so daß die Bruchflächen nach der Bearbeitung der Lagerbohrung und Einbau der Kurbelwelle die Lagerdeckelanlageflächen am Lagerstuhl bilden. Die genannte Anordnung bieten weitere Vorteile, so können z. B. die Zylinderbohrungen von oben und unten bearbeitet werden und bei der Herstellung des Zylinderblockes ist nur noch ein Gußkern erforderlich, da keine Hinterschneidungen mehr durch die Kurbelwellenlagerbrücken entstehen. Bei dieser Anordnung wird in der Regel der Zylinderblock so weit heruntergezogen, daß er eine Dichtfläche zur Ölwanne ausweist.Starting from a bearing block for a crankshaft of an internal combustion engine, the Has bearing cap for the crankshaft, on which bearing cap contact surfaces for Bearing chair are formed and on the side facing the cylinder block of the camp chair are attached, the camp chair providing a surface for assembly of the internal combustion engine, which surrounds the bearing cover provided according to the invention, the bearing cap contact surfaces compared to the To arrange the bearing cover surrounding area increased. This results in inevitably that between the bearing cap contact surfaces and the surrounding Surface a transition shoulder must be formed. This causes stiffening of the camp chair. In addition, this leads to the fact that the bearing cap at Production of the storage chair can be cast with. The cast on Bearing caps are then broken in targeted areas, so that the fractured surfaces after machining the bearing bore and installing the Crankshaft form the bearing cap contact surfaces on the bearing bracket. The said Arrangement offer further advantages, such. B. the cylinder bores from above and edited below and in the manufacture of the cylinder block is only still a cast core required, since no undercuts by the Crankshaft bearing bridges are created. With this arrangement, the Cylinder block pulled down so far that it has a sealing surface to the oil pan identifies.

Bei einer weiteren Ausgestaltung der Erfindung weisen die Lagerdeckel Bohrungen für die Zylinderblockbefestigungsschrauben auf, so daß die Übergangsschulter zwischen Lagerdeckelanlagefläche und umgebender Fläche nach außen wandert und somit auch die Übergangsschulter zwischen den genannten Fläche weiter außen liegt. Bei dieser Anordnung können unter Umständen die separaten Lagerdeckelbefestigungsschrauben entfallen und die Lagerdeckel werden auch von den Zylinderblockbefestigungsschrauben gehalten.In a further embodiment of the invention, the bearing caps have bores for the cylinder block mounting screws so that the transition shoulder migrates outwards between the bearing cap contact surface and the surrounding surface and thus also the transition shoulder between the mentioned surface further outside lies. With this arrangement, the separate Bearing cap fastening screws are omitted and the bearing caps are also from the cylinder block mounting screws.

Bei einer weiteren Ausgestaltung der Erfindung wird die umgebende Fläche des Lagerstuhls als Dichtfläche zum Zylinderblock ausgebildet. Die Dichtfläche zur Ölwanne wird bei dieser Ausgestaltung an der Unterseite des Lagerstuhls angeordnet. Diese Anordnung bietet insbesondere bei kleinen Brennkraftmaschinen Montagevorteile und erhöht die Gesamtsteifigkeit des Systems.In a further embodiment of the invention, the surrounding surface of the Bearing chair formed as a sealing surface to the cylinder block. The sealing surface for In this configuration, the oil pan is on the underside of the bearing chair arranged. This arrangement offers particularly in small internal combustion engines Assembly advantages and increases the overall rigidity of the system.

Dadurch, daß die Lagerdeckelanlageflächen gegenüber der umgebenden Fläche zwischen Lagerstuhl und Zylinderblock erhöht ausgebildet, also gegenüber dieser näher am Zylinder liegen und demzufolge eine Übergangsschulter zwischen Lagerdeckelanlagefläche und umgebender Fläche vorgesehen sein muß, ergibt sich außerdem die Möglichkeit, diese Übergangsschulter als seitliche Paßfläche (senkrecht zur umgebenden Fläche) zwischen Zylinderblock und Lagerstuhl auszubilden. Dies führt zu einer weiter verbesserten Aufnahme der seitlichen Komponenten der Gaskraft.The fact that the bearing cap contact surfaces relative to the surrounding surface formed elevated between the bearing bracket and the cylinder block, that is, compared to this are closer to the cylinder and therefore a transition shoulder between Bearing cap contact surface and surrounding area must be provided also the possibility of this transition shoulder as a side fitting surface (perpendicular to the surrounding surface) between the cylinder block and the bearing bracket train. This leads to a further improved inclusion of the side Components of gas power.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung werden die Lagerstuhlbefestigungsschrauben durch den Zylinderblock durchgeführt und direkt mit dem Zylinderkopf verschraubt. Dies bieten den Vorteil, daß der Zylinderblock nicht mehr auf Zug und Druck sondern nur noch auf Druck beansprucht wird. Außerdem sind keine separaten Zylinderkopfschrauben mehr erforderlich.In a further advantageous embodiment of the invention, the Bearing bracket fastening screws carried out through the cylinder block and directly screwed to the cylinder head. This has the advantage that the cylinder block no longer under tension and pressure but only under pressure. In addition, separate cylinder head bolts are no longer required.

Eine Ausführung der Erfindung für das Beispiel einer Brennkraftmaschine in Reihenanordnung wird anhand der schematischen Abbildung (Fig. 1) erläutert.An embodiment of the invention for the example of an internal combustion engine in Row arrangement is explained using the schematic illustration (Fig. 1).

Die Fig. 1 zeigt schematisch einen Schnitt, der durch die Mitte einer Lagerdeckelbefestigung verläuft. Fig. 1 shows schematically a section through the middle of a Bearing cover attachment runs.

Die Brennkraftmaschine 1 besteht in bekannter Weise aus einem Lagerstuhl 2, dem Zylinderblock 3 und dem Zylinderkopf 4. Ölwanne 7 sowie Zylinderkopfabdeckung 8 sind ebenfalls nur schematisch ausgeführt. Auf dem Lagerstuhl 2 sind Lagerdeckel 5 mittels Lagerdeckelbefestigungsschrauben 51 aufgeschraubt. Zwischen Lagerstuhl 2 und den Lagerdeckeln 5 sind die Bohrungen 52 für die Kurbelwellenlager (Hauptlager) vorgesehen. In etwa die untere Hälfte der Lagerbohrung 52 ist also im Lagerstuhl, während die obere Hälfte im Lagerdeckel angebracht ist. Zwischen Lagerstuhl 2 und Lagerdeckel 5 sind die Lagerdeckelanlageflächen 53 ausgebildet. Dabei kann es sich um mechanisch bearbeitete Flächen oder - bei während der Herstellung des Lagerstuhls 2 angegossenen Lagerdeckeln 5 - um Bruchflächen handeln. Ausgehend von der Bohrung 52 für Kurbelwellenlager sind die Lagerdeckelbefestigungsschrauben 51 etwa symmetrisch zu der Bohrung angeordnet. Die Verbindung zwischen Zylinderblock 3 und Lagerstuhl 2 erfolgt mittels Befestigungsschrauben 6 (Zylinderblockbefestigungsschrauben), die bevorzugt durch die Bohrungen 9, 10 im Lagerstuhl 2 und im Zylinderblock 3 sowie im Zylinderkopf 4 bis in diesen hineinreichen. Am Lagerstuhl 2 ist zum Zylinderblock 3 hin eine Dichtfläche 54 zur Montage des Lagerstuhls am Zylinderblock vorgesehen. Diese Dichtfläche 54 erstreckt sich von der Außenwand 55 des Lagerstuhls in Richtung der Bohrung 52 für das Kurbelwellenlager etwa senkrecht zu den Zylinderblockbefestigungsschrauben 6 bevorzugt bis über die diese aufnehmenden Bohrungen 9, 10. Da die Lagerdeckelanlageflächen 53 gegenüber der Dichtfläche 54 erhöht ausgebildet ist, sich als näher am Zylinderkopf 4 befindet als die Dichtfläche 54, ist zwangsläufig eine Übergangsschulter zwischen Lagerdeckelanlageflächen 53 und Dichtfläche 54 auszubilden. Da sich die Dichtfläche 54 in der hier als bevorzugt dargestellten Ausführung bis über die Bohrung 9, 10 der Befestigungsschrauben 6 in Richtung auf die Kurbelwellenlagerbohrung 52 erstreckt, ist die Übergangsschulter zwischen den Lagerdeckelanlageflächen 53 und der Dichtfläche 54 zwischen den Lagerdeckelbefestigungsschrauben 51 und den Zylinderblockbefestigungsschrauben 6 angeordnet. Hierdurch kann die Übergangsschulter an einem oder mehreren der Lagerdeckel 5 als seitliche Führung etwa senkrecht zur Dichtfläche 54 zwischen Lagerstuhl 2 und Zylinderblock 3 ausgebildet werden. The internal combustion engine 1 consists in a known manner of a bearing chair 2, the Cylinder block 3 and the cylinder head 4.Oil pan 7 and cylinder head cover 8 are also only shown schematically. Bearing caps 5 are on the bearing chair 2 screwed on by means of bearing cap fastening screws 51. Between camp chair 2 and the bearing caps 5 are the bores 52 for the crankshaft bearings (Main camp) provided. Approximately the lower half of the bearing bore 52 is in the Bearing chair while the top half is attached to the bearing cap. Between Bearing chair 2 and bearing cover 5, the bearing cover contact surfaces 53 are formed. These can be machined surfaces or - during the Production of the bearing chair 2 molded bearing caps 5 - around broken surfaces act. Starting from the bore 52 for crankshaft bearings are the Bearing cap fastening screws 51 approximately symmetrical to the bore arranged. The connection between cylinder block 3 and bearing bracket 2 is made by means of fastening screws 6 (cylinder block fastening screws) which preferably through the bores 9, 10 in the bearing block 2 and in the cylinder block 3 and in the cylinder head 4 extend into this. At camp chair 2 is to the cylinder block 3 out a sealing surface 54 is provided for mounting the bearing block on the cylinder block. This sealing surface 54 extends from the outer wall 55 of the bearing block in FIG Direction of bore 52 for the crankshaft bearing approximately perpendicular to the Cylinder block mounting screws 6 preferably up to the receiving them Bores 9, 10. Since the bearing cap contact surfaces 53 are opposite the sealing surface 54 is raised, is located closer to the cylinder head 4 than the sealing surface 54, is inevitably a transition shoulder between bearing cover contact surfaces 53 and form sealing surface 54. Since the sealing surface 54 is preferred here shown embodiment up to the bore 9, 10 of the fastening screws 6 in Extending towards the crankshaft bearing bore 52 is the transition shoulder between the bearing cap contact surfaces 53 and the sealing surface 54 between the Bearing cap mounting screws 51 and the cylinder block mounting screws 6 arranged. This allows the transition shoulder on one or more of the Bearing cover 5 as a lateral guide approximately perpendicular to the sealing surface 54 between Bearing bracket 2 and cylinder block 3 are formed.

Bei einer Anordnung, bei der die Lagerdeckel 5 Durchgangsbohrungen für die Zylinderblockbefestigungsschrauben 6 aufweisen, sich also näher an die Außenwand des Lagerstuhls erstrecken, kann die Übergangsschulter zwischen Dichtfläche 54 und Lagerdeckelanlagefläche 53 auch zwischen Bohrung für die Zylinderblockbefestigungsschrauben 6 und Lagerstuhlaußenwand 55 ausgebildet sein. In axialer Richtung sind die an der Übergangsschulter zwischen der Lagerdeckelanlagefläche 53 und Dichtfläche 54 gebildeten Paßflächen bevorzugt fluchtend ausgebildet.In an arrangement in which the bearing cover 5 through holes for the Have cylinder block mounting screws 6, so closer to the outer wall of the bearing bracket, the transition shoulder between the sealing surface 54 and bearing cap contact surface 53 also between the bore for the Cylinder block mounting screws 6 and bearing wall outer wall 55 are formed his. In the axial direction are those on the transition shoulder between the Bearing cover contact surface 53 and sealing surface 54 formed fitting surfaces are preferred trained in alignment.

Claims (6)

Lagerstuhl (2) für eine Kurbelwelle einer Brennkraftmaschine (1) mit Lagerdeckeln (5) für die Kurbelwelle, wobei zwischen Lagerdeckeln (5) und Lagerstuhl (2) Lagerdeckelanlageflächen (53) ausgebildet sind und die Lagerdeckel (2) auf der einem Zylinderblock (3) zugewandten Seite des Lagerstuhls (2) angebracht sind und mit einer Fläche (54) zur Montage des Lagerstuhls (2) an der Brennkraftmaschine (1), wobei die Fläche (54) die Lagerdeckel (5) umgibt,
dadurch gekennzeichnet, daß
die Lagerdeckelanlageflächen (53) gegenüber der umgebenden Fläche (54) erhöht angeordnet sind.Bearing bracket (2) for a crankshaft of an internal combustion engine (1) with bearing caps (5) for the crankshaft, bearing cap bearing surfaces (53) being formed between the bearing caps (5) and bearing bracket (2) and the bearing caps (2) on the one cylinder block (3 ) facing side of the bearing bracket (2) and with a surface (54) for mounting the bearing bracket (2) on the internal combustion engine (1), the surface (54) surrounding the bearing cover (5),
characterized in that
the bearing cover contact surfaces (53) are arranged higher than the surrounding surface (54). Lagerstuhl (2) nach Anspruch 1,
dadurch gekennzeichnet, daß
im Bereich der umgebenden Fläche (54) Zylinderblockbefestigungsschrauben (6) für die Montage des Lagerstuhls (2) an einem Zylinderblock (3) angeordnet sind, die zwischen den Lagerdeckelbefestigungsschrauben (51) und der Außenwand (55) des Lagerstuhls (2) angeordnet sind und wobei der Übergang von der Lagerdeckelanlagefläche (53) zur umgebenden Fläche (54) zwischen der Lagerdeckelbefestigungsschraube (51) und der Zylinderblockbefestigungsschraube (6) angeordnet ist.Bearing chair (2) according to claim 1,
characterized in that
in the area of the surrounding surface (54) cylinder block fastening screws (6) for mounting the bearing block (2) on a cylinder block (3) are arranged, which are arranged between the bearing cover fastening screws (51) and the outer wall (55) of the bearing block (2) and the transition from the bearing cap contact surface (53) to the surrounding surface (54) being arranged between the bearing cap fixing screw (51) and the cylinder block fixing screw (6). Lagerstuhl (2) nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß
die Lagerdeckel (5) Bohrungen für die Zylinderblockbefestigungsschrauben (6) aufweisen, die wiederum für die Montage des Lagerstuhls (2) an einem Zylinderblock (3) vorgesehen sind. Bearing chair (2) according to claim 1 or 2,
characterized in that
the bearing caps (5) have bores for the cylinder block fastening screws (6), which in turn are provided for mounting the bearing block (2) on a cylinder block (3). Lagerstuhl (2) nach Anspruch 1, 2 oder 3
dadurch gekennzeichnet, daß
die umgebenden Fläche (54) des Lagerstuhls (2) als Dichtfläche zum Zylinderblock (3) ausgebildet ist.Bearing chair (2) according to claim 1, 2 or 3
characterized in that
the surrounding surface (54) of the bearing block (2) is designed as a sealing surface to the cylinder block (3). Lagerstuhl (2) nach den Ansprüchen 1 bis 4,
dadurch gekennzeichnet, daß
der Übergang zwischen der Lagerdeckelanlageflächen (53) und der umgebenden Fläche (54) als seitliche Paßfläche ausgebildet ist.Bearing chair (2) according to claims 1 to 4,
characterized in that
the transition between the bearing cap contact surfaces (53) and the surrounding surface (54) is designed as a lateral fitting surface. Lagerstuhl (2) nach den Ansprüchen 1 bis 5,
dadurch gekennzeichnet, daß
die Zylinderblockbefestigungsschrauben (6) durch den Zylinderblock (3) geführt werden und direkt mit dem Zylinderkopf (4) verschraubt sind.Bearing chair (2) according to claims 1 to 5,
characterized in that
the cylinder block mounting screws (6) are passed through the cylinder block (3) and screwed directly to the cylinder head (4).
EP20020100768 2002-07-01 2002-07-01 Bearing support for a crank shaft of an internal combustion engine Expired - Fee Related EP1378648B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20020100768 EP1378648B1 (en) 2002-07-01 2002-07-01 Bearing support for a crank shaft of an internal combustion engine
DE50211551T DE50211551D1 (en) 2002-07-01 2002-07-01 Bearing for a crankshaft of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020100768 EP1378648B1 (en) 2002-07-01 2002-07-01 Bearing support for a crank shaft of an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1378648A1 true EP1378648A1 (en) 2004-01-07
EP1378648B1 EP1378648B1 (en) 2008-01-16

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Family Applications (1)

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EP20020100768 Expired - Fee Related EP1378648B1 (en) 2002-07-01 2002-07-01 Bearing support for a crank shaft of an internal combustion engine

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EP (1) EP1378648B1 (en)
DE (1) DE50211551D1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7511971A (en) * 1975-10-10 1977-04-13 Stork Werkspoor Diesel Bv SLIDING BEARING FOR A COMBUSTION ENGINE AND AN ENGINE EQUIPPED WITH A SUCH BEARING.
DE29609950U1 (en) 1996-06-05 1997-10-02 Bruehl Eisenwerk Engine block for a multi-cylinder internal combustion engine
EP1205658A1 (en) * 2000-11-07 2002-05-15 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Cylinder block for an internal combustion engine
EP1207293A1 (en) * 2000-11-07 2002-05-22 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Bearing support for an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7511971A (en) * 1975-10-10 1977-04-13 Stork Werkspoor Diesel Bv SLIDING BEARING FOR A COMBUSTION ENGINE AND AN ENGINE EQUIPPED WITH A SUCH BEARING.
DE29609950U1 (en) 1996-06-05 1997-10-02 Bruehl Eisenwerk Engine block for a multi-cylinder internal combustion engine
EP1205658A1 (en) * 2000-11-07 2002-05-15 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Cylinder block for an internal combustion engine
EP1207293A1 (en) * 2000-11-07 2002-05-22 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Bearing support for an internal combustion engine

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DE50211551D1 (en) 2008-03-06
EP1378648B1 (en) 2008-01-16

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