EP1207293B1 - Selle d'appui pour un moteur à combustion interne - Google Patents

Selle d'appui pour un moteur à combustion interne Download PDF

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Publication number
EP1207293B1
EP1207293B1 EP20010126282 EP01126282A EP1207293B1 EP 1207293 B1 EP1207293 B1 EP 1207293B1 EP 20010126282 EP20010126282 EP 20010126282 EP 01126282 A EP01126282 A EP 01126282A EP 1207293 B1 EP1207293 B1 EP 1207293B1
Authority
EP
European Patent Office
Prior art keywords
bearing
oil
bore
bearing cover
crankshaft
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
EP20010126282
Other languages
German (de)
English (en)
Other versions
EP1207293A1 (fr
Inventor
Hans Walter Metz
Dietmar Ulrich Laufenberg
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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
Priority claimed from EP00124090A external-priority patent/EP1205658B1/fr
Application filed by Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to EP20010126282 priority Critical patent/EP1207293B1/fr
Publication of EP1207293A1 publication Critical patent/EP1207293A1/fr
Application granted granted Critical
Publication of EP1207293B1 publication Critical patent/EP1207293B1/fr
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
    • 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
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/026—Arrangements of lubricant conduits for lubricating crankshaft bearings

Definitions

  • the invention relates to a bearing block for an internal combustion engine, in which the bearing caps for the crankshaft bearing are mounted on the cylinder block facing side of the bearing block.
  • Such a bearing chair is e.g. known from DE 29609950-U1.
  • the advantage for the use of a bearing chair is basically the ease of mounting due to modular design and in a substantial stiffening of the combustion chamber opposite end of the engine.
  • the bearing caps for the crankshaft by means provided on both sides of the crankshaft bearing bearing cap screws are mounted on the cylinder block facing side of the bearing block.
  • an external oil gallery integrated on the bearing block is also arranged. Starting from the oil gallery bearing bearing oil holes are provided in the bearing block, which lead to running in the bearing cap oil holes. In this way, the oil can be supplied to the bearing cover located in the half of the crankshaft bearing.
  • the exit opening of the bearing cap oil hole relatively close to the extending between the bearing cap and bearing bearing bearing surface bearing surface.
  • the object of the invention was to improve the oil supply of the crankshaft bearing in a bearing block with cylinder block side mounted bearing caps. This object is solved by the characterizing features of claim 1.
  • the oil gallery inside the bearing block on the side facing away from the bearing caps and this side is arranged approximately opposite. This has the advantage that there is a much greater freedom in the arrangement of the bearing block oil hole, which connects the oil gallery with the bearing cap oil hole.
  • the bearing cap oil hole according to the requirements of the bearing lubrication - in their position only limited by the Lagerdeckelgeometrie - optimized to be selected.
  • the oil gallery is arranged in alignment under the bearing cap contact surfaces which extend between the bearing cap and the bearing block.
  • the production is much easier because the bearing block oil hole can be performed parallel to the bearing cap screws receiving bore.
  • the bearing block oil bore is provided between the crankshaft bearing and the bearing cap screw, with the bearing block oil bore passing through the bearing cap contact surface.
  • the bearing-oil hole can thereby preferably be arranged axially (in crankshaft axis) offset from the plane through the bearing cap screw axes. As a result, an uninterrupted power flow in the bearing cap can be achieved.
  • the oil gallery extends in alignment with the bearing cover bearing surfaces lying in the crankshaft rotation direction. This is achieved in combination with the preceding features that in conjunction with a correspondingly arranged bearing cap oil hole, the oil is supplied at a point of the crankshaft, which is still above the lower, located in the bearing seat, half of the crankshaft bearing and only with the rotation of the Screw crankshaft into this lower half of the bearing.
  • the bearing-oil hole is at least partially formed by a bearing cap screws receiving bore.
  • the necessary manufacturing operations can be further optimized.
  • in connection with corresponding overflow spaces on the bearing cap screw itself or at the bore of the connection between the bearing cap oil hole and bearing block oil hole can be made.
  • lying near the oil gallery bearing cap screws are at least partially hollow, said cavity is connected via holes in the bearing cap screw with the bearing cap screws receiving bore and this is connected on the one hand to the oil gallery, on the other hand with the respective bearing cap oil hole.
  • the oil gallery can be arranged directly at the lower end of the bearing cover screws receiving bore so that the oil gallery itself or the bearing cap screw hole form the bearing block oil hole.
  • Figs. 1 and 2 show schematically a section which extends approximately through the axes of the bearing cap fixing screws.
  • the internal combustion engine 1 consists in a known manner of a bearing block 2, the cylinder block 3 and the cylinder head 4. Oil pan and cylinder head cover are also only schematically.
  • bearing cap 5 On the bearing block 2 bearing cap 5 are screwed by means of Lagerdeckelbearrangingingsschrauben 51. Between bearing block 2 and the bearing caps 5, the holes 52 are provided for the crankshaft bearing (main bearing). In about the lower half of the bearing bore 52 is thus in the bearing block, while the upper half is mounted in the bearing cap. Between camp chair 2 and Bearing cover 5, the bearing cover bearing surfaces 53 are formed. These may be milled surfaces or - in the case of bearing caps cast during manufacture of the bearing block - fracture surfaces.
  • the bearing cap fixing screws 51 are arranged approximately symmetrically to the bore.
  • a sealing surface 54 is provided for mounting the bearing block on the cylinder block to the cylinder block 3. This sealing surface 54 extends from the outer wall 55 of the bearing block in the direction of the bore 52 for the crankshaft bearing approximately perpendicular to the cylinder block mounting screws preferably over this receiving holes.
  • the oil gallery 7 extends with its axis approximately parallel to the axis of the crankshaft 52.
  • a bearing block oil hole 72 is provided, which here runs approximately parallel to the axis of the bearing cap screws and opens into the bearing cap contact surface 53.
  • a bearing cover bore 71 ' is provided which is connected to an approximately transversely extending bearing cover bore 71.
  • the bearing cover bore 71 opens into the bearing cover bearing surface, which is on the side of the bearing cap in the direction of rotation (indicated by the arrow).
  • the bearing block hole can also be arranged axially offset from the cutting plane chosen here. In particular, several Lagerdeckel- or bearing seat oil holes can be attached.
  • one of the bearing cap screws 51 is made partly hollow.
  • the cavity consists here of a substantially axially extending to the bearing cap screw hole 74, which passes through the end opposite the screw head.
  • Two holes 73 extending transversely thereto open into an annular space 75 which communicates with the bearing cap oil hole 71.
  • the two transverse bores 73 are provided here on the one hand to ensure a sufficient flow opening, on the other hand not to weaken the support cross-section of the bearing cap screw too much.
  • the bore in the bearing bracket for the bearing cap screw 71 opens directly or indirectly (via a bearing oil hole 72) in the oil gallery 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Claims (7)

  1. Selle d'appui pour un vilebrequin d'un moteur à combustion interne avec des couvercles d'appui pour le vilebrequin, les couvercles d'appui étant montés, au moyen de vis de couvercle d'appui prévues des deux côtés du palier du vilebrequin, sur le côté de la selle d'appui tourné vers un bloc-cylindres, et avec au moins une galerie d'huile intégrée sur la selle d'appui, dont l'axe est disposé dans une direction s'étendant approximativement parallèlement à l'axe du vilebrequin et qui est connectée à une pompe à huile et, au moyen d'alésages d'huile de couvercle d'appui s'étendant dans le couvercle d'appui, à la partie du palier de vilebrequin se trouvant dans le couvercle d'appui,
    caractérisée en ce que
    la galerie d'huile (7) est disposée à l'intérieur dans la selle d'appui (2), du côté opposé aux couvercles d'appui (5) et approximativement en regard de ceux-ci.
  2. Selle d'appui selon la revendication 1,
    caractérisée en ce que
    la galerie d'huile (7) est disposée en affleurement sous les surfaces d'appui du couvercle d'appui (53), qui s'étendent entre le couvercle d'appui (51) et la selle d'appui (2).
  3. Selle d'appui selon la revendication 2,
    caractérisée en ce que
    chaque couvercle d'appui (5) travers l'alésage d'huile de la selle d'appui (72) par la surface d'appui du couvercle d'appui (53) entre le palier de vilebrequin respectif (52) et la vis du couvercle d'appui (51).
  4. Selle d'appui selon la revendication 2 ou 3,
    caractérisée en ce que
    la galerie d'huile (7) est disposée en affleurement sous les faces d'appui du couvercle d'appui (53) se trouvant dans la direction de rotation du vilebrequin.
  5. Selle d'appui selon la revendication 4,
    caractérisée en ce que
    l'alésage d'huile de la selle d'appui (72) est formé au moins en partie par un alésage recevant les vis du couvercle d'appui (51).
  6. Selle d'appui selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    au moins les vis du couvercle d'appui (51), qui sont disposées d'un côté du palier de vilebrequin (52), sont au moins partiellement creuses, cet espace creux étant connecté par le biais d'alésages (73, 74) dans la vis du couvercle d'appui (51) à l'alésage recevant les vis du couvercle d'appui (51) et celui-ci étant connecté d'une part à la galerie d'huile (7) et d'autre part aux alésages d'huile du couvercle d'appui (71).
  7. Selle d'appui selon la revendication 6,
    caractérisée en ce que
    l'un des alésages (73, 74) s'étend dans la vis du couvercle d'appui (51) à travers la face d'extrémité opposée à la tête de vis, axialement par rapport à la vis du couvercle d'appui (51) et coaxialement à l'alésage recevant la vis du couvercle d'appui (51) et à l'alésage d'huile de la selle d'appui (72), et débouche, à son extrémité proche de la tête de vis, dans au moins un alésage transversal (73, 74) qui débouche dans un espace annulaire (75) de l'alésage recevant la vis du couvercle d'appui (51), lequel alésage est connecté à l'alésage d'huile du couvercle d'appui (71).
EP20010126282 2000-11-07 2001-11-06 Selle d'appui pour un moteur à combustion interne Expired - Lifetime EP1207293B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20010126282 EP1207293B1 (fr) 2000-11-07 2001-11-06 Selle d'appui pour un moteur à combustion interne

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00124090A EP1205658B1 (fr) 2000-11-07 2000-11-07 Bloc-cylindres pour un moteur à combustion interne
EP00124090 2000-11-07
EP20010126282 EP1207293B1 (fr) 2000-11-07 2001-11-06 Selle d'appui pour un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP1207293A1 EP1207293A1 (fr) 2002-05-22
EP1207293B1 true EP1207293B1 (fr) 2006-04-12

Family

ID=26071570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010126282 Expired - Lifetime EP1207293B1 (fr) 2000-11-07 2001-11-06 Selle d'appui pour un moteur à combustion interne

Country Status (1)

Country Link
EP (1) EP1207293B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50211551D1 (de) * 2002-07-01 2008-03-06 Ford Global Tech Llc Lagerstuhl für eine Kurbelwelle einer Brennkraftmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7511971A (nl) * 1975-10-10 1977-04-13 Stork Werkspoor Diesel Bv Glijlager voor een verbrandingsmotor en een met een dergelijk lager uitgeruste motor.
JPH01280666A (ja) * 1988-04-30 1989-11-10 Suzuki Motor Co Ltd シリンダブロック構造
JP2797778B2 (ja) * 1991-10-21 1998-09-17 日産自動車株式会社 内燃機関の潤滑装置
DE29609950U1 (de) * 1996-06-05 1997-10-02 Eisenwerk Brühl GmbH, 50321 Brühl Motorblock für eine Mehrzylinder-Brennkraftmaschine
JP3259650B2 (ja) * 1997-01-31 2002-02-25 スズキ株式会社 エンジンの潤滑油通路構造
JP2000274222A (ja) * 1999-01-20 2000-10-03 Isuzu Motors Ltd オイルフィルタの取付構造

Also Published As

Publication number Publication date
EP1207293A1 (fr) 2002-05-22

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