EP0473006A1 - Cylinder block for vehicle engines - Google Patents

Cylinder block for vehicle engines Download PDF

Info

Publication number
EP0473006A1
EP0473006A1 EP91113626A EP91113626A EP0473006A1 EP 0473006 A1 EP0473006 A1 EP 0473006A1 EP 91113626 A EP91113626 A EP 91113626A EP 91113626 A EP91113626 A EP 91113626A EP 0473006 A1 EP0473006 A1 EP 0473006A1
Authority
EP
European Patent Office
Prior art keywords
cylinder block
block according
trough
crankshaft
crankshaft 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Withdrawn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
EP91113626A
Other languages
German (de)
French (fr)
Inventor
Horst Henkel
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.)
Fritz Winter Eisengiesserei OHG
Original Assignee
Fritz Winter Eisengiesserei OHG
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 Fritz Winter Eisengiesserei OHG filed Critical Fritz Winter Eisengiesserei OHG
Publication of EP0473006A1 publication Critical patent/EP0473006A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/008—Sound insulation
    • 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
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0054—Fastening to the cylinder block
    • 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face
    • 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
    • F02F2007/0056—Crankshaft bearings fitted in the crankcase using bearing beams, i.e. bearings interconnected by a beam or multiple beams

Definitions

  • the invention relates to a cylinder block for motor vehicle engines, each with a crankshaft bearing and oil pan detachably attached thereto.
  • conventional cast cylinder blocks form an integral structural unit with the crankcase and the upper crankshaft bearing shells.
  • the lower crankshaft bearings are flanged from below using screws.
  • the bottom of the crankcase forms the oil pan flanged to the crankcase.
  • the invention is based on the object of reducing the sound radiation in the area of the most heavily loaded crankcase walls. At the same time, the weight of the assembly consisting of the cylinder block and crankcase is to be reduced in order to better meet modern requirements.
  • a trough made of soundproof material is detachably fastened to the cylinder block, which receives the crankshaft bearing, the side walls of the crankcase and the oil pan.
  • the object is achieved by the inventive design of the trough flanged above the previous division level according to FIG. 1, which now encompasses the crankshaft bearings laterally and thus replaces the previous side walls of the crankcase. Due to the use of soundproof material for the sump, the sound radiation from the engine sides and at the same time the total weight of the cylinder block with crankcase and oil sump can be greatly reduced.
  • the tub can be made of steel covered with soundproofing material, non-ferrous material or plastic.
  • the trough can also consist of a double-shell composite material lined with sound insulation material. The material should be corrosion-resistant and expediently have the necessary heat resistance.
  • the space in the composite sheet can be filled with foam or glass fiber mats.
  • foam the cavity of the composite material can be foamed.
  • the sheets formed into the tub can be loosely inserted into one another with the interposition of the sound insulation material and can be detachably fastened to the cylinder block by means of screws.
  • the tub can also be made entirely of plastic or in a suitable sandwich version.
  • the parting plane between the cylinder block and trough should be as close as possible to the top surface, preferably between the cylinders and the axis of the crankshaft bearings and in particular in the area of the cylinder bottom edges. Then the accessibility to the crankshaft bearings is improved, which is a great advantage for assembly and repair work.
  • stiffening beads can be provided in its walls.
  • a frame-like connection of the lower crankshaft bearing shells also has a stiffening effect, which according to a preferred embodiment of the invention can be created by longitudinal webs between adjacent crankshaft bearing shells.
  • the lower crankshaft bearing shell can be a component of the cylinder block in order to remove the load on the screw connection for the crankshaft bearing shell in this embodiment.
  • the crankshaft bearing, in which the screw connection is not exposed to high loads, can be covered by an upper bearing shell.
  • vibration-damping buffers can be arranged as an intermediate layer between the side webs and the inner wall of the tub.
  • a single bearing cover can be connected to the respective bearing web on the cylinder block.
  • the connecting section between it and the crankshaft bearings should be designed in the form of a double bulkhead, as described in DE-PS 39 17 492, and is used to save weight while increasing stability.
  • the invention is explained in more detail with reference to the drawing.
  • crankcase 2 is integrally formed with the side walls 3 and webs 4 to form the upper crankshaft bearing shell 5.
  • Cylinder block 1 and crankcase 2 as well as upper crankshaft bearing shells are manufactured in a cast version. As a rule, either aluminum alloys or cast iron are used as materials.
  • the lower crankshaft bearing shells 6 are flanged to the upper crankshaft bearing shells 5 by means of screws 7.
  • the lower end forms the oil pan 8, which is flanged to the crankcase 2 approximately at the level of the lower crankshaft bearing shells, as shown in FIG. 1.
  • the division level 9 between the cylinder block 1 and the tub 10 is higher than in the conventional design according to FIG. 1, namely approximately at the level of the lower edge 11 of the cylinders 12.
  • the tub 10 thus replaces the oil pan and also the lateral longitudinal walls of the crankcase in the conventional design according to FIG. 1.
  • the pan 10 thus forms an integral structural unit which takes the place of the conventional crankcase and the oil pan.
  • the pot-shaped trough 10, which is open at the top, encloses the crankshaft bearings on both longitudinal sides and at the bottom.
  • the oil drain plug 13 is provided as before.
  • the tub 10 is flanged to the cylinder block 1 by means of screws 14 at its upper edges. After removing the tub 10, the crankshaft and its bearings are freely accessible.
  • the lower crankshaft bearing shell 6 can be included as part of the cylinder block. This removes the load on the screw connection for the crankshaft bearing shell.
  • the upper bearing shell 5 can be covered, in which the screw connection is not exposed to high loads.
  • the trough 10 consists of a deformed composite material in sandwich construction (15a and 15b), between which there is a layer of a suitable soundproofing material 16, e.g. B. foam.
  • the trough can also be designed with one or more shells, whereby it is covered with the appropriate sound insulation material.
  • the specific material thickness and the type of sandwich design depends on the desired stability of the tub and the desired sound insulation.
  • the two materials 15a and 15b formed into the trough should be loosely inserted into one another in a suitable manner with the interposition of the soundproofing material 16 in the form of a mat or should be firmly connected to one another and to the cylinder block 1 by means of suitable methods.
  • the lower crankshaft bearing shells 6 can be connected to one another by longitudinal webs 17.
  • side fins 18 can be arranged, which form stops for the wall of the tub 10, wherein rubber buffers 19 for vibration damping can be arranged between the end faces of the side webs 18 and the inner wall of the tub 10 .
  • the connecting webs between the cylinder block 1 and the upper crankshaft bearing shells 5 can be designed in the form of a double bulkhead 21 according to FIG. 3, which at the same time ensures greater stability despite the reduction in weight.

Abstract

The invention relates to a cylinder block (1) for motor vehicle engines with crankshaft bearings and an oil sump each of which are detachably fixed to it. The characteristic of the invention is that a tank of sound-insulated material accommodating the crankshaft bearings and forming the oil sump and the side longitudinal walls of the crank casing is detachably fixed on the cylinder block (1). <IMAGE>

Description

Die Erfindung betrifft einen Zylinderblock für Kraftfahrzeugmotoren mit jeweils lösbar daran angebrachten Kurbelwellenlagern und Ölwanne.The invention relates to a cylinder block for motor vehicle engines, each with a crankshaft bearing and oil pan detachably attached thereto.

Herkömmliche gegossene Zylinderblöcke bilden, wie Fig. 1 veranschaulicht, eine integrale Baueinheit mit dem Kurbelgehäuse und den oberen Kurbelwellen-Lagerschalen. Die unteren Kurbelwellen-Lagerschalen werden mittels Schrauben von unten angeflanscht. Den Abschluß des Kurbelgehäuses nach unten bildet die an das Kurbelgehäuse angeflanschte Ölwanne.As illustrated in FIG. 1, conventional cast cylinder blocks form an integral structural unit with the crankcase and the upper crankshaft bearing shells. The lower crankshaft bearings are flanged from below using screws. The bottom of the crankcase forms the oil pan flanged to the crankcase.

Schallmessungen haben ergeben, daß 20 % der gesamten Schallabstrahlung eines Fahrzeugmotors von den Längsseiten des Kurbelgehäuses und 10 % von den der Ölwanne ausgehen. Dabei ist der Geräuschpegel an der Kurbelgehäuse-Längswand mit 90,5 dBA bei weitem am höchsten (VDI-Bericht Nr. 499, 1983, Seite 115).Sound measurements have shown that 20% of the total sound radiation of a vehicle engine comes from the long sides of the crankcase and 10% from that of the oil pan. The noise level on the crankcase longitudinal wall is by far the highest at 90.5 dBA (VDI report No. 499, 1983, page 115).

Der Erfindung liegt nun die Aufgabe zugrunde, die Schallabstrahlung im Bereich der am höchsten belasteten Kurbelgehäusewände zu erniedrigen. Gleichzeitig soll das Gewicht der aus Zylinderblock und Kurbelgehäuse bestehenden Baueinheit verringert werden, um neuzeitlichen Anforderungen besser zu genügen.The invention is based on the object of reducing the sound radiation in the area of the most heavily loaded crankcase walls. At the same time, the weight of the assembly consisting of the cylinder block and crankcase is to be reduced in order to better meet modern requirements.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß an dem Zylinderblock eine die Kurbelwellenlager aufnehmende, die Seitenwände des Kurbelgehäuses und die Ölwanne bildende Wanne aus schallgedämmtem Material lösbar befestigt ist.To achieve this object, it is proposed according to the invention that a trough made of soundproof material is detachably fastened to the cylinder block, which receives the crankshaft bearing, the side walls of the crankcase and the oil pan.

Durch die erfindungsgemäße Ausbildung der oberhalb der bisherigen Teilungsebene gemäß Fig. 1 angeflanschten Wanne, die nun die Kurbelwellenlager seitlich umfaßt und damit die bisherigen Seitenwände des Kurbelgehäuses ersetzt, wird die gestellte Aufgabe gelöst. Aufgrund der Verwendung von schallgedämmtem Material für die Wanne kann die Schallabstrahlung von den Motorseiten her und gleichzeitig das Gesamtgewicht des Zylinderblocks mit Kurbelgehäuse und Ölwanne stark reduziert werden.The object is achieved by the inventive design of the trough flanged above the previous division level according to FIG. 1, which now encompasses the crankshaft bearings laterally and thus replaces the previous side walls of the crankcase. Due to the use of soundproof material for the sump, the sound radiation from the engine sides and at the same time the total weight of the cylinder block with crankcase and oil sump can be greatly reduced.

Für die Ausführung der Wanne stehen verschiedene bevorzugte Alternativen zur Verfügung. So kann die Wanne aus mit Schalldämmaterial belegtem Stahl, Nichteisenmaterial oder Kunststoff bestehen. Die Wanne kann aber auch aus einem mit Schalldämmaterial ausgefütterten zweischaligen Verbundmaterial bestehen. Dabei sollte der Werkstoff korrosionsfest sein und zweckmäßigerweise die notwendige Wärmebeständigkeit haben.Various preferred alternatives are available for the design of the tub. For example, the tub can be made of steel covered with soundproofing material, non-ferrous material or plastic. The trough can also consist of a double-shell composite material lined with sound insulation material. The material should be corrosion-resistant and expediently have the necessary heat resistance.

Der Zwischenraum in dem Verbundblech kann mit Schaumstoff oder Glasfasermatten gefüllt sein. Bei Verwendung von Schaumstoff kann der Hohlraum des Verbundmaterials ausgeschäumt werden.The space in the composite sheet can be filled with foam or glass fiber mats. When using foam, the cavity of the composite material can be foamed.

Die zur Wanne geformten Bleche können gemäß einer bevorzugten Ausgestaltung der Erfindung unter Zwischenlage des Schalldämmaterials lose ineinander gesteckt und mittels Schrauben am Zylinderblock lösbar befestigt sein.According to a preferred embodiment of the invention, the sheets formed into the tub can be loosely inserted into one another with the interposition of the sound insulation material and can be detachably fastened to the cylinder block by means of screws.

Auch die Ausführung der Wanne vollständig aus Kunststoff oder in einer geeigneten Sandwich-Ausführung kommen in Betracht.The tub can also be made entirely of plastic or in a suitable sandwich version.

Um möglichst viel Gewicht zu sparen und gute Schalldämmung zu gewährleisten, sollte die Teilungsebene zwischen Zylinderblock und Wanne möglichst nahe zur Kopffläche liegen, bevorzugt zwischen den Zylindern und der Achse der Kurbelwellenlager und insbesondere im Bereich der Zylinderunterkanten. Dann wird auch die Zugänglichkeit zu den Kurbelwellenlagern verbessert, was bei Montage und Reparaturarbeiten von großem Vorteil ist.In order to save as much weight as possible and to ensure good sound insulation, the parting plane between the cylinder block and trough should be as close as possible to the top surface, preferably between the cylinders and the axis of the crankshaft bearings and in particular in the area of the cylinder bottom edges. Then the accessibility to the crankshaft bearings is improved, which is a great advantage for assembly and repair work.

Zur Erhöhung der Stabilität der Wanne können Versteifungssicken in ihren Wänden vorgesehen sein.To increase the stability of the tub, stiffening beads can be provided in its walls.

Versteifend wirkt auch eine rahmenartige Verbindung der unteren Kurbelwellen-Lagerschalen, die gemäß einer bevorzugten Ausgestaltung der Erfindung durch Längsstege zwischen benachbarten Kurbelwellen-Lagerschalen geschaffen werden kann.A frame-like connection of the lower crankshaft bearing shells also has a stiffening effect, which according to a preferred embodiment of the invention can be created by longitudinal webs between adjacent crankshaft bearing shells.

Ebenso kann die untere Kurbelwellen-Lagerschale Mitbestandteil des Zylinderblocks sein, um bei dieser Ausführung die Belastung der Schraubverbindung für die Kurbelwellen-Lagerschale aufzuheben. Hierbei kann durch eine obere Lagerschale das Kurbelwellenlager abgedeckt werden, bei der die Schraubverbindung keiner hohen Belastung ausgesetzt ist.Likewise, the lower crankshaft bearing shell can be a component of the cylinder block in order to remove the load on the screw connection for the crankshaft bearing shell in this embodiment. The crankshaft bearing, in which the screw connection is not exposed to high loads, can be covered by an upper bearing shell.

An den Kurbelwellenlagern oder an den diese miteinander verbindenden Längsstegen können ferner Seitenstege angeformt sein, welche Anschläge für die Innenwand der Wanne bilden und ein seitliches Verlagern der verhältnismäßig dünnwandigen Wanne verhindern. Als Zwischenlage zwischen den Seitenstegen und der Innenwand der Wanne können in bevorzugter Ausgestaltung der Erfindung schwingungsdämpfende Puffer angeordnet sein. Ebenso kann ein einziger Lagerdeckel mit dem jeweiligen Lagersteg am Zylinderblock verbunden sein.On the crankshaft bearings or on the longitudinal webs connecting them to one another, side webs can also be formed, which form stops for the inner wall of the tub and prevent lateral displacement of the relatively thin-walled tub. In a preferred embodiment of the invention, vibration-damping buffers can be arranged as an intermediate layer between the side webs and the inner wall of the tub. Likewise, a single bearing cover can be connected to the respective bearing web on the cylinder block.

Gemäß einer vorteilhaften Ausgestaltung des erfindungsgemäßen Zylinderblocks soll der Verbindungsabschnitt zwischen ihm und den Kurbelwellenlagern in Form einer doppelten Schottwand ausgebildet sein, wie sie in der DE-PS 39 17 492 beschrieben ist und der Gewichtseinsparung unter gleichzeitiger Stabilitätserhöhung dient. Anhand der Zeichnung wird die Erfindung näher erläutert.According to an advantageous embodiment of the cylinder block according to the invention, the connecting section between it and the crankshaft bearings should be designed in the form of a double bulkhead, as described in DE-PS 39 17 492, and is used to save weight while increasing stability. The invention is explained in more detail with reference to the drawing.

Es zeigen:

  • Fig. 1 - den teilweisen Querschnitt eines herkömmlichen Zylinderblocks mit Kurbelgehäuse und Ölwanne,
  • Fig. 2 - den Querschnitt des Zylinderblocks mit Gehäuse und Wanne gemäß der Erfindung,
  • Fig. 2a - den Querschnitt des Zylinderblocks bei einer Variante zu Fig. 2,
  • Fig. 3 - einen Schnitt längs der Linie A - B aus Fig. 2,
  • Fig. 4 - den Ausschnitt H aus Fig. 2,
  • Fig. 5 - den Schnitt C - D aus Fig. 2.
Show it:
  • 1 - the partial cross section of a conventional cylinder block with crankcase and oil pan,
  • 2 - the cross section of the cylinder block with housing and trough according to the invention,
  • 2a - the cross section of the cylinder block in a variant of FIG. 2,
  • 3 - a section along the line A - B from FIG. 2,
  • 4 - the detail H from FIG. 2,
  • 5 - the section C - D of Fig. 2nd

In der Zeichnung sind gleiche Teile mit denselben Bezugszeichen versehen:

  • 1 - Zylinderblock
  • 2 - Kurbelgehäuse
  • 3 - Seitenwand
  • 4 - Steg
  • 5 - obere Kurbelwellen-Lagerschale
  • 6 - untere Kurbelwellen-Lagerschale
  • 7 - Schraube
  • 8 - Ölwanne
  • 9 - Teilungsebene
  • 10 - Wanne
  • 11 - Unterkante
  • 12 - Zylinder
  • 13 - Ölablaßschraube
  • 14 - Schraube
  • 15 - Blech
  • 16 - Schalldämmaterial
  • 17 - Längssteg
  • 18 - Seitensteg
  • 19 - Gummipuffer
  • 20 - Versteifungssicke
  • 21 - doppelte Schottwand
In the drawing, the same parts are provided with the same reference symbols:
  • 1 - cylinder block
  • 2 - crankcase
  • 3 - side wall
  • 4 - web
  • 5 - upper crankshaft bearing shell
  • 6 - lower crankshaft bearing shell
  • 7 - screw
  • 8 - Oil pan
  • 9 - division level
  • 10 - tub
  • 11 - lower edge
  • 12 - cylinder
  • 13 - Oil drain plug
  • 14 - screw
  • 15 - sheet
  • 16 - Soundproofing material
  • 17 - longitudinal web
  • 18 - side bridge
  • 19 - rubber buffer
  • 20 - stiffening bead
  • 21 - double bulkhead

An den Zylinderblock 1 herkömmlicher Bauart gemäß Fig. 1 ist das Kurbelgehäuse 2 mit den Seitenwänden 3 und Stegen 4 zur oberen Kurbelwellen-Lagerschale 5 einstückig angeformt. Zylinderblock 1 und Kurbelgehäuse 2 sowie obere Kurbelwellen-Lagerschalen werden in gegossener Ausführung hergestellt. Als Materialien werden in der Regel entweder Aluminiumlegierungen oder Gußeisen verwendet.1, the crankcase 2 is integrally formed with the side walls 3 and webs 4 to form the upper crankshaft bearing shell 5. Cylinder block 1 and crankcase 2 as well as upper crankshaft bearing shells are manufactured in a cast version. As a rule, either aluminum alloys or cast iron are used as materials.

An die oberen Kurbelwellen-Lagerschalen 5 werden die unteren Kurbelwellen-Lagerschalen 6 mittels Schrauben 7 angeflanscht. Den unteren Abschluß bildet die Ölwanne 8, die an das Kurbelgehäuse 2 etwa in Höhe der unteren Kurbelwellen-Lagerschalen angeflanscht ist, wie dies Fig. 1 sichtbar macht.The lower crankshaft bearing shells 6 are flanged to the upper crankshaft bearing shells 5 by means of screws 7. The lower end forms the oil pan 8, which is flanged to the crankcase 2 approximately at the level of the lower crankshaft bearing shells, as shown in FIG. 1.

Bei der erfindungsgemäßen Ausführung gemäß Fig. 2 liegt die Teilungsebene 9 zwischen dem Zylinderblock 1 und der Wanne 10 höher als bei der herkömmlichen Bauart gemäß Fig. 1, nämlich etwa in Höhe der Unterkannte 11 der Zylinder 12. Damit ersetzt die Wanne 10 die Ölwanne und auch die seitlichen Längswände des Kurbelgehäuses bei der herkömmlichen Bauart gemäß Fig. 1. Die Wanne 10 bildet somit eine integrale Baueinheit, die an die Stelle des herkömmlichen Kurbelgehäuses und der Ölwanne tritt. Die oben offene topfförmige Wanne 10 umschließt die Kurbelwellenlager an beiden Längsseiten und unten. Am Boden der Wanne 10 ist wie bisher die Ölabblasschraube 13 vorgesehen. An ihren oberen Rändern wird die Wanne 10 mittels Schrauben 14 an den Zylinderblock 1 angeflanscht. Nach dem Abnehmen der Wanne 10 sind die Kurbelwelle und ihre Lager frei zugänglich.In the embodiment according to the invention according to FIG. 2, the division level 9 between the cylinder block 1 and the tub 10 is higher than in the conventional design according to FIG. 1, namely approximately at the level of the lower edge 11 of the cylinders 12. The tub 10 thus replaces the oil pan and also the lateral longitudinal walls of the crankcase in the conventional design according to FIG. 1. The pan 10 thus forms an integral structural unit which takes the place of the conventional crankcase and the oil pan. The pot-shaped trough 10, which is open at the top, encloses the crankshaft bearings on both longitudinal sides and at the bottom. At the bottom of the tub 10, the oil drain plug 13 is provided as before. The tub 10 is flanged to the cylinder block 1 by means of screws 14 at its upper edges. After removing the tub 10, the crankshaft and its bearings are freely accessible.

Wie aus Fig. 2a hervorgeht, kann die untere Kurbelwellen-Lagerschale 6 als Bestandteil des Zylinderblocks mit einbezogen werden. Hierdurch wird die Belastung der Schraubverbindung für die Kurbelwellen-Lagerschale aufgehoben. Dabei kann die obere Lagerschale 5 abgedeckt werden, bei der die Schraubverbindung keiner hohen Belastung ausgesetzt ist.As is apparent from Fig. 2a, the lower crankshaft bearing shell 6 can be included as part of the cylinder block. This removes the load on the screw connection for the crankshaft bearing shell. The upper bearing shell 5 can be covered, in which the screw connection is not exposed to high loads.

In der aus Fig. 4 ersichtlichen Ausführung besteht die Wanne 10 aus einem verformten Verbundmaterial in Sandwichbauweise (15a und 15b), zwischen denen sich eine Lage eines geeigneten Schalldämmaterial 16, z. B. Schaumstoff, befindet. Die Wanne kann auch ein- und mehrschalig ausgebildet sein, wobei sie einschalig mit entsprechendem Schalldämmaterial belegt ist.In the embodiment shown in FIG. 4, the trough 10 consists of a deformed composite material in sandwich construction (15a and 15b), between which there is a layer of a suitable soundproofing material 16, e.g. B. foam. The trough can also be designed with one or more shells, whereby it is covered with the appropriate sound insulation material.

Die konkrete Materialstärke und die Art der Sandwich-Ausführung hängt ab von der gewünschten Stabilität der Wanne und der erwünschten Schalldämmung. Die beiden zur Wanne geformten Materialien 15a und 15b sollten in geeigneter Weise unter Zwischenlegen des Schalldämmaterials 16 in Form einer Matte lose ineinander gesteckt bzw. mittels geeigneter Verfahren fest miteinander und mit dem Zylinderblock 1 verbunden sein.The specific material thickness and the type of sandwich design depends on the desired stability of the tub and the desired sound insulation. The two materials 15a and 15b formed into the trough should be loosely inserted into one another in a suitable manner with the interposition of the soundproofing material 16 in the form of a mat or should be firmly connected to one another and to the cylinder block 1 by means of suitable methods.

Um die Stabilität der Kurbelwellenlager zu erhöhen, können die unteren Kurbelwellen-Lagerschalen 6 durch Längsstege 17 untereinander verbunden sein. An diesen oder alternativ an den Lagerschalen können, wie Fig. 5 verdeutlicht, Seitenstege 18 angeordnet sein, welche Anschläge für die Wand der Wanne 10 bilden, wobei zwischen die Endflächen der Seitenstege 18 und der Innenwand der Wanne 10 Gummipuffer 19 zur Schwingungsdämpfung angeordnet sein können.In order to increase the stability of the crankshaft bearings, the lower crankshaft bearing shells 6 can be connected to one another by longitudinal webs 17. 5, side fins 18 can be arranged, which form stops for the wall of the tub 10, wherein rubber buffers 19 for vibration damping can be arranged between the end faces of the side webs 18 and the inner wall of the tub 10 .

Fig. 5 verdeutlicht ferner die Möglichkeit der Anordnung von Versteifungssicken 20 im Verlaufe der Wand der Wanne 10.5 further illustrates the possibility of arranging stiffening beads 20 in the course of the wall of the tub 10.

Die Verbindungsstege zwischen dem Zylinderblock 1 und den oberen Kurbelwellen-Lagerschalen 5 können in Form einer doppelten Schottwand 21 gemäß Fig. 3 ausgebildet sein, die gleichzeitig höhere Stabilität trotz Gewichtsverminderung gewährleistet.The connecting webs between the cylinder block 1 and the upper crankshaft bearing shells 5 can be designed in the form of a double bulkhead 21 according to FIG. 3, which at the same time ensures greater stability despite the reduction in weight.

Claims (17)

1. Zylinderblock für Kraftfahrzeugmotoren mit jeweils lösbar daran angebrachten Kurbelwellenlagern und Ölwanne,

dadurch gekennzeichnet, daß an dem Zylinderblock (1) eine die Kurbelwellenlager aufnehmende, die Seitenlängswände des Kurbelgehäuses und die Ölwanne bildende Wanne (10) aus schallgedämmten Material lösbar befestigt ist.1. cylinder block for motor vehicle engines, each with detachably attached crankshaft bearings and oil pan,

characterized in that on the cylinder block (1) receiving the crankshaft bearing, the side longitudinal walls of the crankcase and the oil pan trough (10) made of soundproof material is releasably attached. 2. Zylinderblock nach Anspruch 1,
dadurch gekennzeichnet, daß die Wanne (10) aus mit Schalldämmaterial belegtem Material besteht.2. cylinder block according to claim 1,
characterized in that the trough (10) consists of material covered with soundproofing material. 3. Zylinderblock nach Anspruch 1,
dadurch gekennzeichnet, daß die Wanne (10) aus einem mit Schalldämmaterial ausgefütterten zweischaligen oder mehrschaligem Verbundwerkstoff besteht.3. cylinder block according to claim 1,
characterized in that the trough (10) consists of a double-shell or multi-shell composite material lined with sound insulation material. 4. Zylinderblock nach Anspruch 3,
dadurch gekennzeichnet, daß das Material korrosionsfest ist.4. cylinder block according to claim 3,
characterized in that the material is corrosion-resistant. 5. Zylinderblock nach Anspruch 3 oder 4,
dadurch gekennzeichnet, daß der Zwischenraum zwischen dem Verbundmaterial mit Schaumstoff oder Glasfasermatten gefüllt ist.5. Cylinder block according to claim 3 or 4,
characterized in that the space between the composite material is filled with foam or glass fiber mats. 6. Zylinderblock nach Anspruch 5,
dadurch gekennzeichnet, daß der Hohlraum des Verbundmaterials mit Schalldämmaterial ausgeschäumt ist.6. cylinder block according to claim 5,
characterized in that the cavity of the composite material is foamed with sound insulation material. 7. Zylinderblock nach Anspruch 3,
dadurch gekennzeichnet, daß die zur Wanne (10) geformten Materialien (15a, 15b) unter Zwischenlage des Schalldämmaterials (16) lose ineinander gesteckt und mittels Schrauben (14) am Zylinderblock (1) lösbar befestigt sind.7. cylinder block according to claim 3,
characterized in that the materials (15a, 15b) formed into the trough (10) are inserted loosely into one another with the interposition of the sound insulation material (16) and are detachably fastened to the cylinder block (1) by means of screws (14). 8. Zylinderblock nach Anspruch 1,
dadurch gekennzeichnet, daß die Wanne (10) aus Kunststoff besteht.8. cylinder block according to claim 1,
characterized in that the trough (10) consists of plastic. 9. Zylinderblock nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß die Teilungsebene (9) zwischen dem Zylinderblock (1) und der Wanne (10) in dem Bereich zwischen den Zylindern (12) und den Kurbelwellenlagern liegt.9. Cylinder block according to one of claims 1 to 8,
characterized in that the division plane (9) between the cylinder block (1) and the trough (10) lies in the region between the cylinders (12) and the crankshaft bearings. 10. Zylinderblock nach Anspruch 9,
dadurch gekennzeichnet, daß die Teilungsebene (9) im Bereich der Unterkante (11) der Zylinder (12) liegt.10. cylinder block according to claim 9,
characterized in that the division plane (9) lies in the region of the lower edge (11) of the cylinders (12). 11. Zylinderblock nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß die Wanne (10) mit Versteifungssicken (20) versehen ist.11. Cylinder block according to one of claims 1 to 10,
characterized in that the trough (10) is provided with stiffening beads (20). 12. Zylinderblock nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß die unteren Kurbelwellen-Lagerschalen (6) durch Längsstege (17) rahmenartig miteinander verbunden sind.12. Cylinder block according to one of claims 1 to 11,
characterized in that the lower crankshaft bearing shells (6) are connected to one another in a frame-like manner by longitudinal webs (17). 13. Zylinderblock nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, daß an den Kurbelwellen-Lagerschalen (5, 6) oder an den diese miteinander verbindenden Längsstegen (17) Seitenstege (18) angeformt sind, welche Anschläge für die Innenwand der Wanne (10) bilden.13. Cylinder block according to one of claims 1 to 12,
characterized in that on the crankshaft bearing shells (5, 6) or on the longitudinal webs (17) connecting them side webs (18) are formed, which form stops for the inner wall of the trough (10). 14. Zylinderblock nach Anspruch 13,
dadurch gekennzeichnet, daß als Zwischenlage zwischen den Seitenstegen (18) und der Innenwand der Wanne (10) schwingungsdämpfende Puffer (19) angeordnet sind.14. Cylinder block according to claim 13,
characterized in that vibration-damping buffers (19) are arranged as an intermediate layer between the side webs (18) and the inner wall of the trough (10). 15. Zylinderblock nach einem der Ansprüche 1 bis 14,
dadurch gekennzeichnet, daß der Verbindungsabschnitt zwischen dem Zylinderblock (1) und den Kurbelwellenlagern in Form einer doppelten Schottwand (21) (Fig. 3) ausgebildet ist.15. Cylinder block according to one of claims 1 to 14,
characterized in that the connecting section between the cylinder block (1) and the crankshaft bearings is in the form of a double bulkhead wall (21) (Fig. 3). 16. Zylinderblock nach einem der Ansprüche 1 bis 15,
dadurch gekennzeichnet, daß die untere Kurbelwellen-Lagerschale (6) Mitbestandteil des Zylinderblocks (1) ist.16. Cylinder block according to one of claims 1 to 15,
characterized in that the lower crankshaft bearing shell (6) is an integral part of the cylinder block (1). 17. Zylinderblock nach Anspruch 16,
dadurch gekennzeichnet, daß das Kurbelwellenlager durch die obere Lagerschale (5) abdeckbar ist.17. Cylinder block according to claim 16,
characterized in that the crankshaft bearing can be covered by the upper bearing shell (5).
EP91113626A 1990-08-29 1991-08-14 Cylinder block for vehicle engines Withdrawn EP0473006A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904027242 DE4027242A1 (en) 1990-08-29 1990-08-29 CYLINDER BLOCK FOR MOTOR VEHICLE ENGINES
DE4027242 1990-08-29

Publications (1)

Publication Number Publication Date
EP0473006A1 true EP0473006A1 (en) 1992-03-04

Family

ID=6413106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113626A Withdrawn EP0473006A1 (en) 1990-08-29 1991-08-14 Cylinder block for vehicle engines

Country Status (3)

Country Link
EP (1) EP0473006A1 (en)
DE (1) DE4027242A1 (en)
FI (1) FI914059A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007017A1 (en) * 1992-09-18 1994-03-31 Eisenwerk Brühl GmbH Cylinder block for an internal combustion engine
WO1997033084A1 (en) * 1996-03-07 1997-09-12 Bayerische Motoren Werke Aktiengesellschaft Crankcase for piston engines, especially v-engines
GB2350864A (en) * 1999-06-07 2000-12-13 Perkins Engines Co Ltd Containment and support assembly, eg for an engine or gearbox, with a rigid framework and lower density outer casing
FR2929646A1 (en) * 2008-04-08 2009-10-09 Peugeot Citroen Automobiles Sa INTERNAL COMBUSTION ENGINE WATER OUTPUT HOUSING

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT3675U1 (en) * 1999-05-04 2000-06-26 Avl List Gmbh CYLINDER CRANKCASE FOR AN INTERNAL COMBUSTION ENGINE
DE102005028775A1 (en) * 2005-06-22 2007-01-04 Daimlerchrysler Ag Crank case for internal combustion engine, has lower casing accomplished as separate component so that crevices extend itself with same width over height of bearing cover and is partially filled with damping material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524880C (en) * 1929-03-14 1931-05-15 Marc Birkigt Air-cooled bearings, especially for crankshafts of internal combustion engines
DE2839885A1 (en) * 1977-09-13 1979-04-26 Nissan Motor QUIET COMBUSTION ENGINE
DE3020818A1 (en) * 1979-06-02 1980-12-04 Nissan Motor NOISE REDUCING LID
US4338889A (en) * 1980-05-05 1982-07-13 Hans List Low-noise level internal combustion engine
DE8915051U1 (en) * 1989-12-22 1990-02-15 Metallwarenfabrik Gemmingen Gmbh & Co, 7519 Gemmingen, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524880C (en) * 1929-03-14 1931-05-15 Marc Birkigt Air-cooled bearings, especially for crankshafts of internal combustion engines
DE2839885A1 (en) * 1977-09-13 1979-04-26 Nissan Motor QUIET COMBUSTION ENGINE
DE3020818A1 (en) * 1979-06-02 1980-12-04 Nissan Motor NOISE REDUCING LID
US4338889A (en) * 1980-05-05 1982-07-13 Hans List Low-noise level internal combustion engine
DE8915051U1 (en) * 1989-12-22 1990-02-15 Metallwarenfabrik Gemmingen Gmbh & Co, 7519 Gemmingen, De

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007017A1 (en) * 1992-09-18 1994-03-31 Eisenwerk Brühl GmbH Cylinder block for an internal combustion engine
US5501189A (en) * 1992-09-18 1996-03-26 Eisenwerk Bruehl Gmbh Cylinder block for an internal combustion engine
WO1997033084A1 (en) * 1996-03-07 1997-09-12 Bayerische Motoren Werke Aktiengesellschaft Crankcase for piston engines, especially v-engines
US6135081A (en) * 1996-03-07 2000-10-24 Bayerische Motoren Werke Ag Engine power section for piston engines, particularly V-engines
GB2350864A (en) * 1999-06-07 2000-12-13 Perkins Engines Co Ltd Containment and support assembly, eg for an engine or gearbox, with a rigid framework and lower density outer casing
FR2929646A1 (en) * 2008-04-08 2009-10-09 Peugeot Citroen Automobiles Sa INTERNAL COMBUSTION ENGINE WATER OUTPUT HOUSING
EP2108796A1 (en) * 2008-04-08 2009-10-14 Peugeot Citroen Automobiles S.A. Water outlet case of an internal combustion engine

Also Published As

Publication number Publication date
FI914059A (en) 1992-03-01
FI914059A0 (en) 1991-08-28
DE4027242A1 (en) 1992-03-05

Similar Documents

Publication Publication Date Title
DE2221804C2 (en) Crankcase for multi-cylinder piston machines
DE2839885C2 (en)
DE3024630C2 (en) Housing part of internal combustion engines such as oil pan or the like.
DE4423024C2 (en) Construction of an oil pan for an internal combustion engine
DE2012564A1 (en) Sound insulating component
DE4121263C2 (en) Holder for an auxiliary device on an engine, in particular a motor vehicle engine
DE3544215A1 (en) CYLINDER BLOCK STRUCTURE FOR A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
DE2922030C2 (en) Internal combustion engine
CH638281A5 (en) DAMPING BODY FOR MACHINE BEARING.
DE102014216070A1 (en) Aggregate bearing, in particular for a motor vehicle
DE4122099C1 (en)
AT407185B (en) ALLOY CRANKCASE FOR A COMBUSTION ENGINE
DE3028788A1 (en) INTERNAL COMBUSTION PISTON
DE60200987T2 (en) Balance shaft unit
DE2302995A1 (en) HOUSING FOR COMBUSTION MACHINERY OF VEHICLES
EP0473006A1 (en) Cylinder block for vehicle engines
DE3142327A1 (en) Oil sump for an internal combustion engine
DE102016009395A1 (en) Storage arrangement of an electric drive train to a motor vehicle shell
DE10158867A1 (en) Construction for mounting an engine on a front side part of a vehicle
EP0683858B1 (en) Piston engine, especially piston internal combustion engine with reinforced engine block
EP2966273A1 (en) Oil tray and method for its production
EP0885354A1 (en) Crankcase for piston engines, especially v-engines
DE3542137C2 (en)
WO2005093245A1 (en) Cylinder block
EP0435847B1 (en) Reciprocating internal combustion piston engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19920626

D17P Request for examination filed (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920907