EP1674703A2 - Poutre à support de palier de vilebrequin pour un moteur à combustion interne - Google Patents

Poutre à support de palier de vilebrequin pour un moteur à combustion interne Download PDF

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Publication number
EP1674703A2
EP1674703A2 EP05022960A EP05022960A EP1674703A2 EP 1674703 A2 EP1674703 A2 EP 1674703A2 EP 05022960 A EP05022960 A EP 05022960A EP 05022960 A EP05022960 A EP 05022960A EP 1674703 A2 EP1674703 A2 EP 1674703A2
Authority
EP
European Patent Office
Prior art keywords
bearing
crankshaft
crankshaft bearing
bridge
caps
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
EP05022960A
Other languages
German (de)
English (en)
Other versions
EP1674703B1 (fr
EP1674703A3 (fr
Inventor
Michael Paul
Joachim Grünberger
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1674703A2 publication Critical patent/EP1674703A2/fr
Publication of EP1674703A3 publication Critical patent/EP1674703A3/fr
Application granted granted Critical
Publication of EP1674703B1 publication Critical patent/EP1674703B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01M11/0004—Oilsumps
    • F01M2011/0033—Oilsumps with special means for guiding the return of oil into the sump
    • 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 crankshaft bearing bridge for an internal combustion engine of the reciprocating type according to the preamble of patent claim 1.
  • a known internal combustion engine of the type mentioned, EP 0 038 560 A1 has a cylinder crankcase, which is connected to a parting plane to a crankshaft bearing bridge.
  • a crankshaft is provided between the cylinder crankcase and the crankshaft bearing bridge, the bearing journals of which are bored by bores in the bearing cheeks of the cylinder crankcase and the crankshaft bearing bridge extending transversely to a longitudinal axis of the crankshaft.
  • the bearing jaws in the crankshaft bearing bridge are designed as bearing caps, are incorporated in the bore halves of the bearing bores.
  • the bearing caps are limited by longitudinal members, wherein the longitudinal members represent the only support for the bearing caps.
  • crankshaft bearing for an internal combustion engine, in which a crankcase and bearing caps attached thereto, which form part of a crankshaft bearing bridge consist of a light metal alloy.
  • the bearing caps are designed as an encapsulation for iron-metal cores, which contribute cores to increase the rigidity of the bearing cap or the crankshaft bearing bridge and also reduce the noise causing bearing clearance between the bearing bore and journal of a crankshaft.
  • crankshaft bearing which is provided in a housing made of a light metal alloy of an internal combustion engine and comprises a bearing bore for a crank pin.
  • a device for reducing the bearing clearance increase between bearing bore crankpin is effective.
  • This device is as a ring-like between bearing bore and crank pin working Kompensatorglied executed, which consists of a material having a relatively large coefficient of thermal expansion.
  • crankshaft bearing bridge made of a light metal alloy
  • the rigid frame assembly with the connecting elements between the bearing blocks of the crankshaft bearing bridge can be realized with little effort without additional bimetallic effects causing devices - iron-metal encapsulated inserts.
  • the connecting elements or the forming relatively thin-walled parts not only act as oil planer, but these connecting elements are formed and arranged in such a way that partially relatively large oil passage channels result whereby even pumping losses are reduced.
  • this framework-like composite frame in conjunction with the temperature-treated bearing seats made of the light metal alloy contributes to the fact that over the operating temperature of the internal combustion engine, a uniformly controlled increase in the bearing bore takes place, i. an otherwise common ovalization of said bearing bore is at least reduced.
  • An internal combustion engine 1 of the reciprocating type with a plurality of cylinders is designed for installation in a non-illustrated motor vehicle and comprises two arranged in a V-shape cylinder banks 2 and 3, in which pistons 4 and 5 work.
  • the pistons 4 and 5 are connected with the interposition of connecting rods 6 and 7 with a crankshaft 8, which is rotated in the direction of arrow A and received by crankshaft bearings 9.
  • the crankshaft bearings 9 are formed by a cylinder crankcase 10 and a crankshaft bearing bridge 11, both made of a light metal alloy and are assembled in a parting plane BB, and they take with bearing bores 12, not shown journals of a longitudinal axis CC - Fig. 2 - comprising the crankshaft 8 on.
  • the crankshaft bearing bridge 11 is provided with transverse to the longitudinal axis CC bearing caps 13,14,15,16 and 17, each having bore halves 18.
  • the bearing caps 13,14,15,16 and 17 are limited to outer longitudinal sides LI and LII of longitudinal members 19 and 20 and said bearing cap open at least in the region of the parting plane BB mediation of thickening extensions 21 in the longitudinal members 19 and 20 a.
  • the extensions 21 have - seen from above on the crankshaft bearing bridge - Y-shape, and they taper towards a parting plane DD of the crankshaft bearing bridge 11 out - Fig. 5 -, to which an oil pan ⁇ w is connected.
  • the bearing caps with connecting elements 22, 23, 24 and 25 are supported, extending between Longitudinal members 19 and 20 extend and are made in one piece with the bearing caps 13,14, 15,16 and 17.
  • each connecting element e.g. 24 has a first element portion 26 and a second element portion 27 defining a first oil passageway 28.
  • a second oil passageway 29 and a third oil passageway 30 are provided between the element sections 26 and 27 and the longitudinal beams.
  • the element portions 26 and 27 are provided relatively thin-walled and in cross-section with the strength-increasing profiles 31 and 32.
  • the first element section 26 is T-shaped in cross-section, in such a way that a leg 33 extends approximately parallel to the parting plane B-B and a web 34 approximately at right angles to the leg 33.
  • the second element portion 27, however, is designed almost C-shaped.
  • free ends 35 and 36 of the element sections 26 and 27 are formed as oil planer, which are brought to Abstreifkonturen Ak of the connecting rods 6 and 7.
  • Fig. 6 shows how the temperature properties of the latter can be optimized by targeted temperature treatment of the bearing cap 13 to 17.
  • first cooling elements 37 and second cooling elements 38 for example.
  • the first and second cooling elements 37 and 38 are made of iron-metallic material, wherein the first cooling elements 37 are plates which are attached to both sides of the bearing cap 16, for example, 16 to the side walls 39 and 40.
  • the second cooling elements 38 are formed as cylinders with a circular cross section and provided with the shape of the bore halves 18 of the bearing cap 13 to 17.
  • lightening recesses 41 are integrated - Fig. 4 and 5 - provided below the bore halves 18 in said bearing caps and introduced from the parting plane D-D.
  • the relief means 41 are U-shaped in cross section, and they extend between through holes 42 and 43, which serve to receive fastening screws. With the fastening screws, the crankshaft bearing bridge 11 is held in position on the cylinder crankcase 10 of the internal combustion engine 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP05022960A 2004-12-22 2005-10-21 Poutre à support de palier de vilebrequin pour un moteur à combustion interne Ceased EP1674703B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004061672A DE102004061672A1 (de) 2004-12-22 2004-12-22 Kurbelwellenlagerbrücke für eine Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1674703A2 true EP1674703A2 (fr) 2006-06-28
EP1674703A3 EP1674703A3 (fr) 2009-12-16
EP1674703B1 EP1674703B1 (fr) 2011-04-20

Family

ID=35892582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05022960A Ceased EP1674703B1 (fr) 2004-12-22 2005-10-21 Poutre à support de palier de vilebrequin pour un moteur à combustion interne

Country Status (4)

Country Link
US (1) US20060130799A1 (fr)
EP (1) EP1674703B1 (fr)
JP (1) JP2006177349A (fr)
DE (2) DE102004061672A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10641202B2 (en) * 2017-12-04 2020-05-05 Toyota Jidosha Kabushiki Kaisha Cylinder head

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061684B4 (de) * 2004-12-22 2011-09-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kurbelwellenlager für eine Brennkraftmaschine
CN112610329A (zh) * 2020-11-25 2021-04-06 郝继先 异型曲柄对置式柴油内燃机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038560A1 (fr) 1980-04-21 1981-10-28 Nissan Motor Co., Ltd. Moteur à combustion interne
DE3426208C1 (de) 1984-07-17 1986-03-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Kurbelwellenlager fuer Brennkraftmaschinen
DE4330565C1 (de) 1993-09-09 1994-08-18 Porsche Ag Kurbelwellenlager

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519348A (en) * 1983-04-21 1985-05-28 Edward Hamilton Oil pan and windage tray for high performance engines
DE3837834C1 (en) * 1988-11-08 1989-06-01 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Crankshaft bearing for an internal combustion engine
DE4001470A1 (de) * 1990-01-19 1991-07-25 Porsche Ag Brennkraftmaschine mit einem oelabweisteil
DE19619974C1 (de) * 1996-05-17 1997-11-20 Daimler Benz Ag Kurbelgehäuse einer Brennkraftmaschine
JP3552414B2 (ja) * 1996-08-27 2004-08-11 日産自動車株式会社 内燃機関のオイルパン装置
TW376426B (en) * 1996-10-16 1999-12-11 Honda Motor Co Ltd Engine for vehicle
AT407185B (de) * 1998-06-03 2001-01-25 Miba Sintermetall Ag Kurbelgehäuse aus leichtmetall für einen verbrennungsmotor
IT1316226B1 (it) * 1999-10-06 2003-04-03 Daimler Chrysler Ag Dispositivo di convogliamento di olio nella coppa dell'olio di motoria combustione interna.
KR100412841B1 (ko) * 2001-07-23 2003-12-31 현대자동차주식회사 엔진의 래더프레임
US6543405B2 (en) * 2001-08-08 2003-04-08 General Motors Corporation Modular engine architecture
DE10357096B4 (de) * 2003-03-01 2014-05-15 Bayerische Motoren Werke Aktiengesellschaft Monolithisches Aluminium-Zylinderkurbelgehäuse für hochbeanspruchte Dieselmotoren
DE102004061684B4 (de) * 2004-12-22 2011-09-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kurbelwellenlager für eine Brennkraftmaschine
US20070283918A1 (en) * 2006-06-07 2007-12-13 Ford Global Technologies, Llc Combination Bearing Beam and Crankshaft-Interactive Oil Management Device for Internal Combustion Engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038560A1 (fr) 1980-04-21 1981-10-28 Nissan Motor Co., Ltd. Moteur à combustion interne
DE3426208C1 (de) 1984-07-17 1986-03-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Kurbelwellenlager fuer Brennkraftmaschinen
DE4330565C1 (de) 1993-09-09 1994-08-18 Porsche Ag Kurbelwellenlager

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10641202B2 (en) * 2017-12-04 2020-05-05 Toyota Jidosha Kabushiki Kaisha Cylinder head

Also Published As

Publication number Publication date
JP2006177349A (ja) 2006-07-06
EP1674703B1 (fr) 2011-04-20
DE102004061672A1 (de) 2006-07-13
EP1674703A3 (fr) 2009-12-16
US20060130799A1 (en) 2006-06-22
DE502005011271D1 (de) 2011-06-01

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