EP0663522B1 - Carter pour un moteur à combustion interne - Google Patents

Carter pour un moteur à combustion interne Download PDF

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Publication number
EP0663522B1
EP0663522B1 EP94118456A EP94118456A EP0663522B1 EP 0663522 B1 EP0663522 B1 EP 0663522B1 EP 94118456 A EP94118456 A EP 94118456A EP 94118456 A EP94118456 A EP 94118456A EP 0663522 B1 EP0663522 B1 EP 0663522B1
Authority
EP
European Patent Office
Prior art keywords
crankcase
reinforcement plate
flange
oil pan
stiffening plate
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.)
Expired - Lifetime
Application number
EP94118456A
Other languages
German (de)
English (en)
Other versions
EP0663522A1 (fr
EP0663522B2 (fr
Inventor
Rudolf Unger
Engelbert Dipl.-Ing. Wührer
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.)
MAN Truck and Bus Osterreich AG
Original Assignee
Steyr Nutzfahrzeuge AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3480287&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0663522(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Steyr Nutzfahrzeuge AG filed Critical Steyr Nutzfahrzeuge AG
Publication of EP0663522A1 publication Critical patent/EP0663522A1/fr
Application granted granted Critical
Publication of EP0663522B1 publication Critical patent/EP0663522B1/fr
Publication of EP0663522B2 publication Critical patent/EP0663522B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line

Definitions

  • the invention relates to a crankcase for internal combustion engines, in which a stiffening plate is provided between a crankcase flange and an oil pan flange, sealing means being provided between the crankcase flange and stiffening plate on the one hand and stiffening plate and oil pan flange on the other hand, and having a circumferential edge of the stiffening plate below crankshaft bearings and transverse webs the stiffening plate is connected to the crankcase flange by means of continuous screws.
  • a stiffening plate for a crankcase which is arranged between a crankcase flange and an oil pan flange. A circumferential edge of the stiffening plate is connected below the crankshaft bearings by means of crossbars.
  • a soft material seal is provided for sealing between the crankcase flange and the stiffening plate on the one hand and between the stiffening plate and oil pan flange on the other hand.
  • the stiffening plate is connected to the crankcase flange using continuous screws. Since the known stiffening plate has only a limited thickness for reasons of weight, a soft material seal must be used in order to be able to guarantee oil tightness in the event of bending stress (because of the deformation occurring) of the stiffening plate. Because of the soft material seal, forces from the crankcase can only be transferred to the stiffening plate to a limited extent. The result is that the side walls of the crankcase vibrate, which give rise to sound radiation and thus to loud engine noise.
  • the stiffening plate has a shell connecting the longitudinal spars with oil passages.
  • the object of the invention is to develop the stiffening plate in such a way that vibrations of the side walls of the crankcase can be largely suppressed and airborne sound radiation can be largely avoided.
  • stiffening plate is designed as a casting, with a peripheral edge, the longitudinal spars are connected by transverse webs, which, like the edge, have a large height in comparison to their wall thickness, and that as a sealant between A known liquid seal is provided crankcase flange and stiffening plate.
  • the crosspieces between the longitudinal spars of the edge of the stiffening plate preferably have a U-shaped cross section open to the oil pan. This allows a high section modulus to be achieved in the stiffening plate with low weight.
  • Oil pans are usually manufactured using the deep-drawing process. Since a specific width-depth ratio cannot be exceeded in the deep-drawing process, an increase in volume of the oil pan at a given depth can only be achieved by widening it, for which purpose the overhanging stiffening plate can form the necessary basis.
  • FIG. 1 shows the view of an internal combustion engine in the direction of the longitudinal axis and a cross section through a stiffening plate 1, which is arranged between a crankcase flange 2 and an oil pan flange 3.
  • the stiffening plate 1 designed as a cast part is connected to the crankcase flange 2 of a crankcase 5 by means of continuous screws 4.
  • a liquid seal known per se and therefore not shown is provided between the stiffening plate 1 and the crankcase flange 2.
  • the sealing of the stiffening plate 1 with respect to the oil pan flange 3 of an oil pan 6 can be implemented as a conventional soft material seal.
  • a circumferential edge 7 of the stiffening plate 1 is connected by transverse webs 8 which act between its longitudinal spars and act as cross-stiffeners.
  • transverse webs 8 act between its longitudinal spars and act as cross-stiffeners.
  • the peripheral edge 7 and the transverse webs 8 have a large height in comparison to his / her wall thickness.
  • Fig. 2 shows the stiffening plate 1 located between the crankcase flange 2 and the oil pan flange 3 in section II-II
  • Fig. 3 shows the latter in plan view.
  • the transverse webs 8 preferably have a U-shaped cross section open towards the oil pan 6, but can also be made simpler.
  • the crosspieces 8 are each arranged below the crankshaft bearing cover. Due to the U-shaped cross-section, a particularly high bending stiffness is achieved with a low weight.
  • a liquid seal known per se can be provided between the crankcase flange 2 and the stiffening plate 1, which allows high support forces in the tensile and compressive direction to be transmitted from the side walls 9 of the crankcase 5 into the stiffening plate 1. By stiffening the side walls 9, vibrations of the same are suppressed and airborne sound radiation is significantly reduced.
  • the height of the stiffening plate 1 is about 1/10 - 1/20 in relation to the height of the crankcase 5, but is matched to the respective engine from case to case.
  • the relatively large height of the peripheral edge 7 shown in FIGS. 1 and 2 in connection with the U-shaped design of the transverse webs 8 results in a high bending stiffness both in the vertical and in the horizontal direction.
  • the stiffening plate 1 is thus stiff in all directions due to the shape according to the invention and will deform only insignificantly under the influence of the forces and moments introduced from the crankcase 5 (FIG. 1, FIG. 2).

Claims (3)

  1. Carter de vilebrequin pour moteurs à combustion interne dans lequel est prévue une plaque de renforcement (1) située entre une bride carter de vilebrequin (2) et une bride d'un carter à huile (3), tandis qu'entre la bride du carter de vilebrequin (2) et la plaque de renforcement (1) d'une part et la plaque de renforcement (1) et la bride du carter à huile (3) d'autre part, sont prévus des agents d'étanchéité et qu'un bord circulant (7) de la plaque de renforcement (1) comprend des entretoises transversales (8) en dessous des paliers de vilebrequin, de même que la plaque de renforcement (1) est raccordée au moyen de vis passantes (4) à la bride du carter de vilebrequin,
    caractérisé en ce que
    la plaque de renforcement (1) est réalisée en pièce de fonte, avec un bord circulant (7) dont les longerons longitudinaux sont reliés par des entretoises transversales (8) qui possèdent de même que le bord (7) une grande hauteur en comparaison à leur/son épaisseur de paroi, et entre la bride du carter de vilebrequin et la plaque de renforcement (1) sont prévus comme agent d'étanchéité une garniture hydraulique connue.
  2. Carter de vilebrequin selon la revendication 1,
    caractérisé en ce que
    les entretoises (8) de la plaque de renforcement (1) ont une section transversale en forme de U, ouverte vers le carter à huile (6).
  3. Carter de vilebrequin selon la revendication 1,
    caractérisé en ce que
    la plaque de renforcement (1) dépasse, en vue de dessus, au moins partiellement la bride du carter de vilebrequin, au point qu'
    a) on peut appliquer sur la face supérieure en saillie des pièces du moteur et/ou des équipements auxiliaires et/ou des dispositifs de fixation pour ceux-ci,
    b) dans la zone en saillie on peut installer des dispositifs, par exemple pour un remplissage d'huile, pour loger une jauge de niveau d'huile et un retour d'huile d'une turbosoufflante à gaz d'échappement, et
    c) sur la zone de bord de la face inférieure en saillie on peut appliquer un carter à huile en une ou plusieurs parties, agrandi de manière adéquate en volume, ou réduit en hauteur, mais restant de volume égal.
EP19940118456 1994-01-14 1994-11-24 Carter pour un moteur à combustion interne Expired - Lifetime EP0663522B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT53/94 1994-01-14
AT5394 1994-01-14
AT5394A AT404165B (de) 1994-01-14 1994-01-14 Kurbelgehäuse für brennkraftmaschinen

Publications (3)

Publication Number Publication Date
EP0663522A1 EP0663522A1 (fr) 1995-07-19
EP0663522B1 true EP0663522B1 (fr) 1997-10-29
EP0663522B2 EP0663522B2 (fr) 2002-11-06

Family

ID=3480287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940118456 Expired - Lifetime EP0663522B2 (fr) 1994-01-14 1994-11-24 Carter pour un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP0663522B2 (fr)
AT (1) AT404165B (fr)
DE (1) DE59404472D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754008C2 (de) * 1997-12-05 2003-04-10 Daimler Chrysler Ag Hubkolbenbrennkraftmaschine
AT501798B1 (de) 2005-04-25 2006-11-15 Man Nutzfahrzeuge Oesterreich Aufgeladene brennkraftmaschine
DE102006007421A1 (de) * 2006-02-17 2007-08-30 Deutz Ag Ölwannenträgerrahmen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1185670B (it) * 1984-09-11 1987-11-12 Maschf Augsburg Nuernberg Ag Basamento per macchine a pistoni pluricilindriche
DE3444838C2 (de) * 1984-12-08 1986-10-30 Bayerische Motoren Werke AG, 8000 München Gehäuse für Hubkolben-Brennkraftmaschine, insbesondere Motorblock
AT398608B (de) * 1987-09-22 1995-01-25 Avl Verbrennungskraft Messtech Kurbelgehäuse
JP2559966Y2 (ja) * 1989-01-31 1998-01-19 三菱自動車工業株式会社 シリンダブロックのロアケース構造
JP2548173Y2 (ja) * 1989-09-12 1997-09-17 マツダ株式会社 エンジンのシリンダブロック補強構造
DE59000360D1 (de) * 1989-12-22 1992-11-19 Avl Verbrennungskraft Messtech Brennkraftmaschine mit hin- und hergehenden kolben.
AT399542B (de) * 1991-01-30 1995-05-26 Avl Verbrennungskraft Messtech Geräuscharme brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MTZ Motortechnische Zeitschrift;38(1977) 7/8, Seiten 289-298 *

Also Published As

Publication number Publication date
DE59404472D1 (de) 1997-12-04
EP0663522A1 (fr) 1995-07-19
EP0663522B2 (fr) 2002-11-06
ATA5394A (de) 1998-01-15
AT404165B (de) 1998-09-25

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