EP0459428B1 - Moteur à combustion interne - Google Patents

Moteur à combustion interne Download PDF

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Publication number
EP0459428B1
EP0459428B1 EP19910108745 EP91108745A EP0459428B1 EP 0459428 B1 EP0459428 B1 EP 0459428B1 EP 19910108745 EP19910108745 EP 19910108745 EP 91108745 A EP91108745 A EP 91108745A EP 0459428 B1 EP0459428 B1 EP 0459428B1
Authority
EP
European Patent Office
Prior art keywords
crankcase
combustion engine
internal combustion
engine according
bands
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
EP19910108745
Other languages
German (de)
English (en)
Other versions
EP0459428A1 (fr
Inventor
Bruno Spessert
Monika Breuer
Toni Kleinschmidt
Hermann Reddert
Albert Nolte
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Deutz AG
Kloeckner Humboldt Deutz 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.)
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Publication date
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Application filed by Deutz AG, Kloeckner Humboldt Deutz AG filed Critical Deutz AG
Priority to DE59102470T priority Critical patent/DE59102470D1/de
Publication of EP0459428A1 publication Critical patent/EP0459428A1/fr
Application granted granted Critical
Publication of EP0459428B1 publication Critical patent/EP0459428B1/fr
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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
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line
    • 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

Definitions

  • the invention relates to an internal combustion engine according to the preamble of claim 1.
  • a generic internal combustion engine is known from DE-OS 38 31 266.
  • the internal combustion engine described in this document is generally rigid and low-noise.
  • a strut system is provided which is attached to the outside of the internal combustion engine.
  • the bearing arrangement for receiving the crankshaft is connected to the crankcase via a solid apron, which has only a small recess.
  • This design has the disadvantage that the internal combustion engine as a whole is very heavy, in particular due to the massive connection of the bearing arrangement to the crankcase.
  • the invention has for its object to provide an internal combustion engine that has a low weight with low noise emissions from the moving parts.
  • This object is achieved in that the tapes are supported by intermediate stiffeners towards the crankcase wall.
  • This design enables a weight reduction compared to the known design, but the noise emitted by the moving parts is low.
  • the stiffeners are designed as cross girders. This embodiment has proven to be favorable in terms of high rigidity and also in terms of low noise emissions.
  • the cross girders advantageously extend from the connection region of the bands with the bearing base body to the opposite crankcase wall running between the bands.
  • the stiffeners can be connected in a central area between the bearing base body and the crankcase on the belts and on the crankcase wall connecting the belts. Both training courses have proven to be favorable in terms of weight and noise emissions.
  • the cross-sectional area of the stiffeners is 0.3 times to 0.7 times the cross-sectional area of the strips.
  • 0.5 times the cross-sectional area has proven to be particularly favorable.
  • the bearing base body and / or the strips are connected to the crankcase bell by means of ribs.
  • This design makes the overall system even stiffer and at the same time enables a further reduction in the thickness of the crankcase bell walls as well as the bearing arrangement as a whole.
  • the ribs together with the bearing base form an at least approximately rectilinear connection plane between the two sides of the crankcase bell.
  • Ribs which contribute particularly to the rigidity can be provided with further ribs which extend to an oil pan flange of the crankcase bell and, if appropriate, are also connected to the belts in the upper region of the crankcase bell.
  • crankcase bell has internal and / or external webs in the region of the connecting points of the ribs.
  • the oil pan flange has a width that is 0.4 times to 0.6 times, preferably 0.5 times, the cylinder bore dimension.
  • 1 has a crankcase block 1 which is composed essentially of a crankcase bell 2 and a cylinder section 3. Bearing arrangements for receiving a crankshaft are fastened in the crankcase bell 2 and are connected to a piston per cylinder unit via a connecting rod. The piston is movable in the cylinder 4.
  • Each bearing arrangement consists of a bearing base body 5 which, together with a bearing cover 7 connected to the bearing base body 5 by screws 6, has a recess 8 for receiving the crankshaft.
  • the bearing base body 5 is connected to the block 1 via two bands 9a and 9b.
  • the straps 9a, 9b extend in an axial extension of the screws 6.
  • the straps 9a, 9b are stiffened towards the block 1 by stiffeners, which are designed as cross girders 10.
  • the crossbeams 10 extend from the connection area of the belts 9a, 9b with the bearing base 5 to the opposite crankcase wall 11 running between the belts 9a, 9b.
  • ribs 12 are also provided, which are approximately in the center of the recess 8 on both sides of the bearing base and Crankcase bell 2 are connected, so that there is an at least approximately straight connection plane.
  • Further ribs 12a extend from the bearing base body 5 to an oil pan flange 13. In contrast to FIG. 1, a further pair of ribs 12b is provided in FIG.
  • the ribs 12 are wedge-shaped and the oil pan flange 13 is made narrower.
  • internal and external webs 14a, 14b are connected to the crankcase bell in the region of the connecting points of the ribs 12.
  • the stiffeners are connected in a central area between the bearing body 5 and the crankcase wall 11 on the belts 9a, 9b and on the crankcase wall 11 connecting the belts 9a, 9b.
  • the ribs 12a extend from the bearing base body 5 to an inwardly widened oil pan flange 13.

Claims (10)

  1. Moteur à combustion interne avec un bloc de carter de vilebrequin comportant une partie cylindrique tubulaire et une cloche de carter de vilebrequin, qui comporte des structures de paliers pour recevoir un arbre de vilebrequin qui, à chaque unité de cylindre, est relié par l'intermédiaire d'une bielle à un piston susceptible de se déplacer dans un cylindre, le cylindre étant recouvert par une culasse, tandis que chaque structure de palier comporte un corps de base de palier (5) relié d'une seule pièce au carter de vilebrequin par l'intermédiaire d'un tablier et qui comporte, conjointement avec un couvercle de palier (7) vissé sur le corps de base, un évidement pour recevoir l'arbre de vilebrequin, tandis que le tablier comporte des attaches disposées dans le prolongement axial des vis du couvercle de palier (7) et qui s'étendent depuis le corps de base de palier jusqu'à une paroi (11) du carter de vilebrequin, moteur à combustion interne caractérisé en ce que les attaches (9a, 9b) sont étayées, par des renforcements placés entre elles, par rapport à la paroi du carter de vilebrequin (11).
  2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que les renforcements revêtent la forme de supports en croix (10).
  3. Moteur à combustion interne selon la revendication 2, caractérisé en ce que les supports en croix (10) s'étendent de la zone de liaison des attaches (9a, 9b) avec le corps de base de palier (5), vers la paroi du carter de vilebrequin (11) placée en face et s'étendant entre les attaches (9a, 9b).
  4. Moteur à combustion interne selon la revendication 1 ou la revendication 2, caractérisé en ce que les renforcements sont situés dans une zone médiane entre le corps de base de palier (5) et le carter de vilebrequin, et sont rattachés à la paroi du carter de vilebrequin (11) reliant les attaches (9a, 9b).
  5. Moteur à combustion interne selon l'une des revendications 1 à 4, caractérisé en ce que le rapport entre la surface de section transversale des renforcements et la surface transversale des attaches (9a, 9b) se situe entre 0,3 et 0,7.
  6. Moteur à combustion interne selon l'une des revendications 1 à 5, caractérisé en ce que le corps de base de palier (5) et/ou les attaches (9a, 9b) sont reliés à la cloche de carter de vilebrequin (2) par l'intermédiaire de nervures (12, 12a, 12b).
  7. Moteur à combustion interne selon la revendication 6, caractérisé en ce que les nervures (12) forment conjointement avec le corps de base de palier (5), une liaison au moins approximativement rectiligne entre les côtés opposés du carter de vilebrequin.
  8. Moteur à combustion interne selon la revendication 6 ou la revendication 7, caractérisé en ce que des deux côtés du corps de base de palier (5), des nervures au moins approximativement rectilignes (12, 12a, 12b) s'étendent depuis la zone cylindrique tubulaire, par l'intermédiaire du corps de base de palier principal (5), vers une bride de carter d'huile (13) de la cloche du carter de vilebrequin.
  9. Moteur à combustion interne selon l'une des revendications 6 à 8, caractérisé en ce que la cloche de carter de vilebrequin (2) comporte, dans la zone des points d'attaches des nervures (12, 12a, 12b), des nervures (14) placées à l'intérieur et/ou à l'extérieur.
  10. Moteur à combustion interne selon la revendication 8 ou la revendication 9, caractérisé en ce que la bride de carter d'huile (13) a une largeur dont le rapport à la cote d'alésage du cylindre se situe entre 0,4 et 0,6.
EP19910108745 1990-05-28 1991-05-28 Moteur à combustion interne Expired - Lifetime EP0459428B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE59102470T DE59102470D1 (de) 1991-05-28 1991-05-28 Brennkraftmaschine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904017139 DE4017139C2 (de) 1990-05-28 1990-05-28 Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0459428A1 EP0459428A1 (fr) 1991-12-04
EP0459428B1 true EP0459428B1 (fr) 1994-08-10

Family

ID=6407336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910108745 Expired - Lifetime EP0459428B1 (fr) 1990-05-28 1991-05-28 Moteur à combustion interne

Country Status (2)

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EP (1) EP0459428B1 (fr)
DE (1) DE4017139C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223717C2 (de) * 1992-07-18 2001-09-27 Deutz Ag Geräuschoptimiertes Kurbelgehäuse
DE9319055U1 (de) * 1993-12-11 1995-04-13 Fev Motorentech Gmbh & Co Kg Kolbenmaschine, insbesondere Kolbenbrennkraftmaschine mit versteiftem Motorblock mittels unterbrochener Rippen
DE9319054U1 (de) * 1993-12-11 1995-04-13 Fev Motorentech Gmbh & Co Kg Kolbenmaschine, insbesondere Kolbenbrennkraftmaschine mit versteiftem Motorblock
DE19628110C1 (de) * 1996-07-12 1997-10-02 Daimler Benz Ag Kurbelgehäuse für eine Hubkolbenmaschine
EP2228530A1 (fr) 2009-03-13 2010-09-15 Ford Global Technologies, LLC Carter de moteur à combustion
CN106438088A (zh) * 2016-11-28 2017-02-22 江苏四达动力机械集团有限公司 一种气缸体加强结构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190904888A (en) * 1909-02-27 1910-02-24 Gustavus Green Improvements in the Construction of Light Engines.
FR587093A (fr) * 1923-10-12 1925-04-10 Rolls Royce Perfectionnements aux enveloppes des paliers supportant les vilebrequins des moteurs
US2752896A (en) * 1952-01-23 1956-07-03 Krauss Maffei Ag Crankcases, particularly for v-type diesel engines
GB1063082A (en) * 1963-02-06 1967-03-30 Ruston & Hornsby Ltd Frame structure for a reciprocating piston engine or machine
FR1429847A (fr) * 1965-04-09 1966-02-25 British Aluminium Co Ltd Perfectionnements apportés aux moteurs à combustion interne
GB1541421A (en) * 1975-04-28 1979-02-28 Nat Res Dev Structure of reciprocating internal combustion engines
AT398608B (de) * 1987-09-22 1995-01-25 Avl Verbrennungskraft Messtech Kurbelgehäuse

Also Published As

Publication number Publication date
EP0459428A1 (fr) 1991-12-04
DE4017139A1 (de) 1991-12-05
DE4017139C2 (de) 1999-04-15

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