EP0515773A1 - Reinforced structure of a cylinder block of a machine with pistons specially an internal combustion engine - Google Patents

Reinforced structure of a cylinder block of a machine with pistons specially an internal combustion engine Download PDF

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Publication number
EP0515773A1
EP0515773A1 EP19920102365 EP92102365A EP0515773A1 EP 0515773 A1 EP0515773 A1 EP 0515773A1 EP 19920102365 EP19920102365 EP 19920102365 EP 92102365 A EP92102365 A EP 92102365A EP 0515773 A1 EP0515773 A1 EP 0515773A1
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EP
European Patent Office
Prior art keywords
crankcase
struts
guide surfaces
baffle
walls
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
EP19920102365
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German (de)
French (fr)
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EP0515773B1 (en
Inventor
Alfred Sadlauer
Johann Stastny
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Filing date
Publication date
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Publication of EP0515773A1 publication Critical patent/EP0515773A1/en
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Publication of EP0515773B1 publication Critical patent/EP0515773B1/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
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • 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
    • F02F7/0021—Construction
    • 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 device for stiffening the crankcase of a reciprocating piston machine according to the features specified in the preamble of claim 1.
  • crankcases for internal combustion engines with housing walls extended far beyond the split bearings of a crankshaft it is e.g. B. from AT-C-308 475, to increase the bending and torsional rigidity and to reduce sound radiation to stiffen the crankcase walls in the free edge areas by a detachable frame with ladder-like struts.
  • the generic DE-C-37 29 966 shows a stiffening device designed as a casting with cross-sectionally U-shaped stiffening struts.
  • crankcase in its lower part which can be closed by an oil pan
  • devices for avoiding the disadvantageous oil leakage by the crank mechanism show DE-A-1 576 361 and DE-A-33 15 304, the respective device being equipped with deflection tongues or cooled cutting-like lamellae arranged obliquely to a lubricating oil roller rotating with the crank mechanism.
  • the invention has for its object to design the stiffening device described above, including the aforementioned oil-repellent device with little additional material, so that the bending and torsional rigidity is increased.
  • a frameless stiffening device also offers the advantage of an arrangement on the crankcase which is separate from an oil pan attachment and thus also simplifies the sealing between the crankcase and the oil pan.
  • the shell-like Stiffening device is preferably designed as a die-cast part in light metal.
  • a reciprocating piston internal combustion engine 1 shown only in sections in cross section comprises a crankcase 2 with crankcase walls 3 and 4.
  • a crank mechanism 5 arranged between them comprises a crankshaft 6 with counterweights 7 on both sides of a diametrically arranged crank pin 8 for a connecting rod 9 for a piston, not shown.
  • a strut 11 with a U-shaped cross section connected to the crankcase walls 3 and 4.
  • the mutually facing legs 12 of the struts 11 of the stiffening device 13 arranged at a crankshaft bearing spacing are baffle or guide surfaces 14 arranged obliquely to a lubricating oil roller rotating or entrained with the crank mechanism 5 in the direction of arrow A, 14 'and 15, 15' and 16, 16 'and 17, 18, 19 firmly connected to each other.
  • baffle or guide surfaces are for the particularly effective reduction of the oil pan work Movement contours of different engine parts - crankshaft counterweights 7 and large bearing eye 20 of the connecting rod 9 - specially adapted.
  • Fig. 2 shows that on the legs 12 of the struts 11 on the movement contour 21 of the crankshaft balancing weights 7 adapted baffle or guide surfaces 14, 14 'and 15, 15' and 16, 16 'are arranged. In their end regions facing one another, these impact or guide surfaces are connected to supporting walls 22, 22 ′ which are essentially parallel to and spaced apart from the legs 12, between which adapted impact or guide surfaces are adapted to the movement contour 23 of the large connecting rod bearing eye 20 17, 18 and 19 are arranged.
  • This enables a frameless design of the device 13 with an arrangement via the struts 11 which is separate from the attachment of an oil pan 24 to the crankcase walls 3 and 4.
  • the device 13 is preferably designed as a die-cast part in light metal with little material expenditure.
  • the lubricating oil separated from the lubricating oil roller rotating with the crankshaft 6 according to arrow A via the aforementioned baffle or guide surfaces is transferred between the connecting rod or guide surfaces 14, 14 '; 15, 15'; 16, 16 'and 17, 18, 19 openings 25 arranged in the stiffening device 13 are guided into the oil pan 24.

Abstract

For a device for the reinforcement of the crankcase of a reciprocating piston engine, especially an internal combustion engine, with struts (11) connecting the crankcase walls on both sides of a crankshaft drive, it is proposed, in order to increase the bending and torsional rigidity of the device, that the struts be firmly connected to one another by way of baffle or guide surfaces (14, 14'; 15, 15'; 16, 16'; 17, 18, 19) arranged slanting in relation to a lubricating oil roller rotating with the crankshaft drive. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Versteifen des Kurbelgehäuses einer Hubkolbenmaschine gemäß den im Oberbegriff des Patentanspruches 1 angegebenen Merkmalen.The invention relates to a device for stiffening the crankcase of a reciprocating piston machine according to the features specified in the preamble of claim 1.

Bei Kurbelgehäusen für Brennkraftmaschinen mit weit über die geteilten Lager einer Kurbelwelle hinaus verlängerten Gehäusewänden ist es z. B. aus der AT-C-308 475 bekannt, zur Erhöhung der Biege- und Torsionssteifigkeit sowie zur Reduzierung einer Schallabstrahlung die Kurbelgehäusewände in den freien Randbereichen durch einen lösbaren Rahmen mit leiterartig angeordneten Streben zu versteifen.In crankcases for internal combustion engines with housing walls extended far beyond the split bearings of a crankshaft, it is e.g. B. from AT-C-308 475, to increase the bending and torsional rigidity and to reduce sound radiation to stiffen the crankcase walls in the free edge areas by a detachable frame with ladder-like struts.

Weiter zeigt die gattungsbildende DE-C-37 29 966 eine als Gußstück gestaltete Versteifungs-Vorrichtung mit im Querschnitt U-förmigen Versteifungs-Streben.Furthermore, the generic DE-C-37 29 966 shows a stiffening device designed as a casting with cross-sectionally U-shaped stiffening struts.

Ein weiterer Gesichtspunkt bei der Gestaltung eines Kurbelgehäuses in seinem unteren, durch eine Ölwanne verschließbaren Teil betrifft Einrichtungen zur Vermeidung des nachteiligen Ölpanschens durch den Kurbeltrieb. Derartige Einrichtungen zeigen die DE-A-1 576 361 und die DE-A-33 15 304, wobei die jeweilige Einrichtung mit zu einer mit dem Kurbeltrieb umlaufenden Schmierölwalze schräg angeordneten Ablenkzungen bzw. gekühlten schneidenartigen Lamellen ausgerüstet ist.Another aspect in the design of a crankcase in its lower part, which can be closed by an oil pan, relates to devices for avoiding the disadvantageous oil leakage by the crank mechanism. Such devices show DE-A-1 576 361 and DE-A-33 15 304, the respective device being equipped with deflection tongues or cooled cutting-like lamellae arranged obliquely to a lubricating oil roller rotating with the crank mechanism.

Der Erfindung liegt die Aufgabe zugrunde, die eingangs beschriebene Versteifungs-Vorrichtung unter Einbeziehung der vorgenannten Ölabweis-Einrichtung bei geringem zusätzlichen Materialaufwand so zu gestalten, daß die Biege- und Torsionssteifigkeit gesteigert ist.The invention has for its object to design the stiffening device described above, including the aforementioned oil-repellent device with little additional material, so that the bending and torsional rigidity is increased.

Diese Aufgabe wird gemäß dem Kennzeichen des Patentanspruches 1 dadurch gelöst, daß die Streben über zu einer mit dem Kurbeltrieb umlaufenden Schmierölwalze schräg angeordnete Prall- bzw. Leitflächen miteinander fest verbunden sind.This object is achieved in accordance with the characterizing part of claim 1 in that the struts are firmly connected to one another via baffle or guide surfaces arranged obliquely to a lubricating oil roller rotating with the crank mechanism.

Die erfindungsgemäße gegenseitige feste Verbindung der Streben in Kurbelwellenlängsrichtung über den Bewegungskonturen rotierender Triebwerksteile angepaßt angeordneter Prall- bzw. Leitflächen ergibt eine schalenartig gestaltete Versteifungs-Vorrichtung mit dem wesentlichen Vorteil der aus der schalenartigen Gestaltung resultierenden höheren Biege- und Torsionssteifigkeit. Diese ist mit der Erfindung so erheblich gesteigert, daß die Versteifungs-Vorrichtung im Gegensatz zum Stand der Technik nach der gattungsbildenden DE-C-37 29 966 ohne einen materialaufwendigen Rahmen ausgebildet werden kann. Eine rahmenlose Versteifungs-Vorrichtung bietet weiter den Vorteil einer von einer Ölwannenbefestigung gesonderten Anordnung am Kurbelgehäuse und vereinfacht damit auch die Abdichtung zwischen Kurbelgehäuse und Ölwanne.The mutual, fixed connection of the struts in the longitudinal direction of the crankshaft above the movement contours of rotating engine parts of arranged arranged baffle or guide surfaces results in a shell-like stiffening device with the essential advantage of the higher bending and torsional stiffness resulting from the shell-like design. This is increased so considerably with the invention that the stiffening device, in contrast to the prior art according to the generic DE-C-37 29 966, can be formed without a material-consuming frame. A frameless stiffening device also offers the advantage of an arrangement on the crankcase which is separate from an oil pan attachment and thus also simplifies the sealing between the crankcase and the oil pan.

Weitere bevorzugte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben, wobei die schalenartige Versteifungs-Vorrichtung vorzugsweise als Druckgußteil in Leichtmetall ausgebildet ist.Further preferred embodiments of the invention are specified in the subclaims, the shell-like Stiffening device is preferably designed as a die-cast part in light metal.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben.
Es zeigt:

Fig. 1
ein geschnitten dargestelltes Kurbelgehäuse einer Brennkraftmaschine mit einer schalenartigen Versteifungs-Vorrichtung im Querschnitt, und
Fig. 2
die Versteifungs-Vorrichtung nach Fig. 1 in perspektivischer Darstellung.
The invention is described with reference to an embodiment shown in the drawing.
It shows:
Fig. 1
a sectional crankcase of an internal combustion engine with a shell-like stiffening device in cross section, and
Fig. 2
the stiffening device of FIG. 1 in a perspective view.

Eine lediglich abschnittsweise im Querschnitt gezeigte Hubkolben-Brennkraftmaschine 1 umfaßt ein Kurbelgehäuse 2 mit Kurbelgehäusewänden 3 und 4. Ein zwischen diesen angeordneter Kurbeltrieb 5 umfaßt eine Kurbelwelle 6 mit Ausgleichsgewichten 7 beiderseits eines diametral angeordneten Hubzapfens 8 für ein Pleuel 9 zu einem nicht gezeigten Kolben. Unterhalb eines Lagerdeckels 10 für die Kurbelwelle 6 verbindet eine im Querschnitt U-förmige Strebe 11 - in Fig. 2 angedeutet - die Kurbelgehäusewände 3 und 4.A reciprocating piston internal combustion engine 1 shown only in sections in cross section comprises a crankcase 2 with crankcase walls 3 and 4. A crank mechanism 5 arranged between them comprises a crankshaft 6 with counterweights 7 on both sides of a diametrically arranged crank pin 8 for a connecting rod 9 for a piston, not shown. Below a bearing cover 10 for the crankshaft 6, a strut 11 with a U-shaped cross section — indicated in FIG. 2 — connects the crankcase walls 3 and 4.

Wie Fig. 2 zeigt, sind die einander zugekehrten Schenkel 12 der in einem Kurbelwellen-Lagerabstand angeordneten Streben 11 der Versteifungs-Vorrichtung 13 über zu einer mit dem Kurbeltrieb 5 gemäß Pfeilrichtung A umlaufenden bzw. mitgenommenen Schmierölwalze schräg angeordnete Prall- bzw. Leitflächen 14, 14' und 15, 15' und 16, 16' sowie 17, 18, 19 miteinander fest verbunden.As shown in FIG. 2, the mutually facing legs 12 of the struts 11 of the stiffening device 13 arranged at a crankshaft bearing spacing are baffle or guide surfaces 14 arranged obliquely to a lubricating oil roller rotating or entrained with the crank mechanism 5 in the direction of arrow A, 14 'and 15, 15' and 16, 16 'and 17, 18, 19 firmly connected to each other.

Die vorgenannten Prall- bzw. Leitflächen sind zur besonders wirkungsvollen Reduzierung der Ölpanscharbeit den Bewegungskonturen unterschiedlicher Triebwerksteile - Kurbelwellen-Ausgleichsgewichte 7 und großes Lagerauge 20 des Pleuels 9 - besonders angepaßt. Die Fig. 2 zeigt, daß an den Schenkeln 12 der Streben 11 auf die Bewegungskontur 21 der Kurbelwellen-Ausgleichsgewichte 7 abgestellt angepaßte Prall- bzw. Leitflächen 14, 14' und 15, 15' und 16, 16' angeordnet sind. Diese Prall- bzw. Leitflächen stehen in ihren einander zugewandten Endbereichen mit zu den Schenkeln 12 im wesentlichen parallelen, gegenseitig beabstandeten Tragwänden 22, 22' in Verbindung, zwischen denen auf die Bewegungskontur 23 des großen Pleuel-Lagerauges 20 abgestellt angepaßte Prall- bzw. Leitflächen 17, 18 und 19 angeordnet sind.The abovementioned baffle or guide surfaces are for the particularly effective reduction of the oil pan work Movement contours of different engine parts - crankshaft counterweights 7 and large bearing eye 20 of the connecting rod 9 - specially adapted. Fig. 2 shows that on the legs 12 of the struts 11 on the movement contour 21 of the crankshaft balancing weights 7 adapted baffle or guide surfaces 14, 14 'and 15, 15' and 16, 16 'are arranged. In their end regions facing one another, these impact or guide surfaces are connected to supporting walls 22, 22 ′ which are essentially parallel to and spaced apart from the legs 12, between which adapted impact or guide surfaces are adapted to the movement contour 23 of the large connecting rod bearing eye 20 17, 18 and 19 are arranged.

Diese für jeden Bereich von zwei KW-Ausgleichsgewichten 7 und einem dazwischen angeordneten Pleuel 9 getroffene Anordnung der vorerwähnten Prall- bzw. Leitflächen ergibt eine schalenartige Versteifungs-Vorrichtung 13 von hoher Biege- und Torsionssteifigkeit. Dies ermöglicht eine rahmenlose Gestaltung der Vorrichtung 13 mit einer von der Befestigung einer Ölwanne 24 an den Kurbelgehäusewänden 3 und 4 gesonderten Anordnung über die Streben 11. Vorzugsweise ist die Vorrichtung 13 mit geringem Materialaufwand als Druckgußteil in Leichtmetall ausgebildet.This arrangement of the aforementioned impact or guide surfaces, which is made for each area by two KW counterweights 7 and a connecting rod 9 arranged between them, results in a shell-like stiffening device 13 of high bending and torsional rigidity. This enables a frameless design of the device 13 with an arrangement via the struts 11 which is separate from the attachment of an oil pan 24 to the crankcase walls 3 and 4. The device 13 is preferably designed as a die-cast part in light metal with little material expenditure.

Das über die vorgenannten Prall- bzw. Leitflächen aus der mit der Kurbelwelle 6 gemäß Pfeil A umlaufenden Schmierölwalze abgetrennte Schmieröl wird über zwischen den Pleuel- bzw. Leitflächen 14,14';15,15';16,16' und 17, 18, 19 in der Versteifungs-Vorrichtung 13 angeordnete Öffnungen 25 in die Ölwanne 24 geleitet.The lubricating oil separated from the lubricating oil roller rotating with the crankshaft 6 according to arrow A via the aforementioned baffle or guide surfaces is transferred between the connecting rod or guide surfaces 14, 14 '; 15, 15'; 16, 16 'and 17, 18, 19 openings 25 arranged in the stiffening device 13 are guided into the oil pan 24.

Claims (5)

Vorrichtung zum Versteifen des Kurbelgehäuses einer Hubkolbenmaschine, insbesondere Brennkraftmaschine, - die Kurbelgehäusewände (3,4) beiderseits eines Kurbeltriebes (5) zwischen Bereichen rotierender Triebwerksteile mittels Streben (11) verbindet, und - die Streben (11) in einem am Kurbelgehäuse (2) befestigbaren Bauteil angeordnet sind, dadurch gekennzeichnet, - daß die Streben (11) über zu einer mit dem Kurbeltrieb (5) umlaufenden Schmierölwalze schräg angeordnete Prall- bzw. Leitflächen (14,14';15,15';16,16';17;18;19) miteinander fest verbunden sind. Device for stiffening the crankcase of a reciprocating piston engine, in particular an internal combustion engine, - The crankcase walls (3,4) on both sides of a crank mechanism (5) between areas of rotating engine parts by means of struts (11), and - The struts (11) are arranged in a component which can be fastened to the crankcase (2), characterized in that - That the struts (11) over a to the crank mechanism (5) rotating lubricating oil roller arranged obliquely arranged baffle or guide surfaces (14,14 ';15,15'; 16,16 ';17;18; 19) firmly connected are. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Prall- bzw. Leitflächen (14-19) zwischen Schenkeln (12) zweier benachbarter, im Querschnitt U-förmig gestalteter Streben (11) den Bewegungskonturen (21,23) unterschiedlicher Triebwerksteile (KW-Ausgleichsgewichte 7; großes Pleuel-Lagerauge 20) angepaßt angeordnet sind.Device according to claim 1,
characterized in that the baffle or guide surfaces (14-19) between the legs (12) of two adjacent struts (11) U-shaped in cross section, the movement contours (21,23) of different engine parts (KW balance weights 7; large connecting rod -Bearing eye 20) are arranged adapted. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet, - daß an den Schenkeln (12) der Streben (11) auf die Bewegungskontur (21) von Kurbelwellen-Ausgleichsgewichten (7) abgestellt angepaßte Prall- bzw. Leitflächen (14,14';15,15';16,16') angeordnet sind, die - in ihren einander zugewandten Endbereichen mit zu den Schenkeln (12) im wesentlichen parallelen, gegenseitig beabstandeten Tragwänden (22,22') in Verbindung stehen, wobei - zwischen den Tragwänden (22,22') auf die Bewegungskontur (23) eines mit der Kurbelwelle (6) umlaufenden großen Pleuel-Lagerauges (20) abgestellt angepaßte Prall- bzw. Leitflächen (17,18,19) angeordnet sind. Device according to claims 1 and 2,
characterized, - That on the legs (12) of the struts (11) on the movement contour (21) of crankshaft balancing weights (7) adapted baffle or guide surfaces (14,14 ';15,15'; 16,16 ') arranged are the - In their mutually facing end areas with the legs (12) substantially parallel, mutually spaced support walls (22,22 ') are connected, wherein - Adapted baffle or guide surfaces (17, 18, 19) arranged on the movement contour (23) of a large connecting rod bearing eye (20) rotating around the crankshaft (6) are arranged between the supporting walls (22, 22 '). Vorrichtung nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet, daß die Vorrichtung (13) als Druckgußteil in Leichtmetall ausgebildet ist.Device according to claims 1 to 3,
characterized in that the device (13) is designed as a die-cast part in light metal. Vorrichtung nach den Ansprüchen 1 bis 4,
gekennzeichnet durch eine rahmenlose Gestaltung mit einer von der Befestigung einer Ölwanne (24) an den Kurbelgehäuse-Wänden (3,4) gesonderten Anordnung am Kurbelgehäuse (2).Device according to claims 1 to 4,
characterized by a frameless design with an arrangement on the crankcase (2) separate from the attachment of an oil pan (24) to the crankcase walls (3, 4).
EP92102365A 1991-05-25 1992-02-13 Reinforced structure of a cylinder block of a machine with pistons specially an internal combustion engine Expired - Lifetime EP0515773B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4117153 1991-05-25
DE4117153 1991-05-25

Publications (2)

Publication Number Publication Date
EP0515773A1 true EP0515773A1 (en) 1992-12-02
EP0515773B1 EP0515773B1 (en) 1995-06-14

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AT (1) ATE123845T1 (en)
DE (1) DE59202494D1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947271C2 (en) * 1998-10-06 2001-03-01 Avl List Gmbh Multi-cylinder internal combustion engine with at least one first balance shaft
DE19754008C2 (en) * 1997-12-05 2003-04-10 Daimler Chrysler Ag reciprocating internal combustion engine
DE10232318A1 (en) * 2002-07-17 2004-02-05 Bayerische Motoren Werke Ag Machine housing for an internal combustion engine
DE102005057258A1 (en) * 2005-12-01 2007-06-06 Audi Ag Internal combustion engine has multi part cylinder block whereby crankshaft bearing is formed by bearing bracket
DE102005057717A1 (en) * 2005-12-02 2007-06-06 Fev Motorentechnik Gmbh Cylinder crankcase for internal combustion engine, has dead plate whose walls are strutted over bars transverse to crankshaft axis, where bars are arranged between bearing cap and/or region of main support without connecting to cap
EP1865160A2 (en) * 2006-06-07 2007-12-12 Ford Motor Company An Internal Combustion Engine
US8302577B2 (en) 2008-11-28 2012-11-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315304A1 (en) * 1983-04-27 1984-10-31 Bayerische Motoren Werke AG, 8000 München Liquid-cooled reciprocating-piston internal-combustion engine with a coolant/lubricating-oil heat exchanger
EP0187263A1 (en) * 1984-12-08 1986-07-16 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Casing for an internal-combustion engine
DE3911014A1 (en) * 1988-04-05 1989-10-26 Mazda Motor CYLINDER BLOCK REINFORCEMENT CONSTRUCTION
DE4024313A1 (en) * 1989-09-12 1991-03-21 Mazda Motor REINFORCED STRUCTURE OF THE COMBUSTION ENGINE CYLINDER BLOCK

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430364Y2 (en) * 1986-07-08 1992-07-22

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315304A1 (en) * 1983-04-27 1984-10-31 Bayerische Motoren Werke AG, 8000 München Liquid-cooled reciprocating-piston internal-combustion engine with a coolant/lubricating-oil heat exchanger
EP0187263A1 (en) * 1984-12-08 1986-07-16 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Casing for an internal-combustion engine
DE3911014A1 (en) * 1988-04-05 1989-10-26 Mazda Motor CYLINDER BLOCK REINFORCEMENT CONSTRUCTION
DE4024313A1 (en) * 1989-09-12 1991-03-21 Mazda Motor REINFORCED STRUCTURE OF THE COMBUSTION ENGINE CYLINDER BLOCK

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754008C2 (en) * 1997-12-05 2003-04-10 Daimler Chrysler Ag reciprocating internal combustion engine
DE19947271C2 (en) * 1998-10-06 2001-03-01 Avl List Gmbh Multi-cylinder internal combustion engine with at least one first balance shaft
DE10232318A1 (en) * 2002-07-17 2004-02-05 Bayerische Motoren Werke Ag Machine housing for an internal combustion engine
DE102005057258A1 (en) * 2005-12-01 2007-06-06 Audi Ag Internal combustion engine has multi part cylinder block whereby crankshaft bearing is formed by bearing bracket
DE102005057717A1 (en) * 2005-12-02 2007-06-06 Fev Motorentechnik Gmbh Cylinder crankcase for internal combustion engine, has dead plate whose walls are strutted over bars transverse to crankshaft axis, where bars are arranged between bearing cap and/or region of main support without connecting to cap
EP1865160A2 (en) * 2006-06-07 2007-12-12 Ford Motor Company An Internal Combustion Engine
EP1865160A3 (en) * 2006-06-07 2009-09-30 Ford Motor Company An Internal Combustion Engine
US8302577B2 (en) 2008-11-28 2012-11-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine

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EP0515773B1 (en) 1995-06-14
DE59202494D1 (en) 1995-07-20
ATE123845T1 (en) 1995-06-15

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