EP1674704A2 - 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
EP1674704A2
EP1674704A2 EP05022961A EP05022961A EP1674704A2 EP 1674704 A2 EP1674704 A2 EP 1674704A2 EP 05022961 A EP05022961 A EP 05022961A EP 05022961 A EP05022961 A EP 05022961A EP 1674704 A2 EP1674704 A2 EP 1674704A2
Authority
EP
European Patent Office
Prior art keywords
bearing
crankshaft
crankshaft bearing
blocks
bridge
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.)
Withdrawn
Application number
EP05022961A
Other languages
German (de)
English (en)
Other versions
EP1674704A3 (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 EP1674704A2 publication Critical patent/EP1674704A2/fr
Publication of EP1674704A3 publication Critical patent/EP1674704A3/fr
Withdrawn legal-status Critical Current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
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0048—Tunnel-type frames
    • 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
    • F01M2011/005—Oilsumps with special anti-turbulence means, e.g. anti-foaming means or intermediate plates

Definitions

  • the invention relates to a crankshaft bearing for an internal combustion engine of the reciprocating type with a plurality of cylinders according to the preamble of patent claim 1.
  • crankshaft bearing for an internal combustion engine, DE 34 26 208 C1
  • 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 enlargement between the bearing bore and crankpin is effective.
  • This device is designed as a ring-like between bearing bore and crank pin working Kompensatorglied, which consists of a material having a relatively large coefficient of thermal expansion.
  • DE 22 57 651 and EP 0 038 560 treat bearing brackets for internal combustion engines, wherein adjacent bearing blocks are supported only by longitudinal walls or longitudinal members.
  • crankshaft bearing bridge for an internal combustion engine, which is characterized by high strength and low-noise mounting of the crankshaft in a simple design.
  • 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.
  • the connecting elements or the walls forming them not only act as oil planer, but these connecting elements are arranged in such a way that relatively large ventilation cross-sections result, whereby pumping losses are reduced.
  • this composite frame in conjunction with the temperature-treated alloy metal bearing supports, contributes to the uniformly controlled enlargement of the bearing bore above the operating temperature of the engine. 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 arranged in a housing 10 made of a light metal alloy and have bearing bores 11 for crankpins 12 of the crankshaft 8.
  • first bearing portion 13 and a second bearing portion 14 with first bearing blocks 15 and second bearing blocks 16, 17, 18, 19, and 20 are provided on both sides of a bearing parting plane B-B.
  • the first bearing blocks 15 are integrated into a crankcase 15 'formed above the dividing plane B-B, whereas the second bearing blocks 16, 17, 18, 19 and 20 are part of a crankshaft bearing bridge 21, which is also called "bedplate”.
  • the second bearing blocks 16 to 20 extend transversely to a central longitudinal plane C-C of the crankshaft 8 and are provided with bore halves 22 of the bearing bores 11.
  • the extensions 24 have Y-shape: In other words, side walls 27 and 28, for example, of the bearing block 17 expand with legs 29 and 30 toward the longitudinal walls 25 and 26 of the crankshaft bearing bridge 21.
  • Fig. 2 it is shown that the bearing blocks 16 to 20, the connecting elements 23 and the longitudinal walls 25 and 26 of the crankshaft bearing bridge 21 are constructively combined in such a way that results in a rigid frame composite.
  • It has the example between the two adjacent storage chairs 16 and 17 provided connecting element 23 two separate element walls 31 and 32 - Fig. 3 -, which are relatively thin-walled and profiled.
  • the element wall 32 lubricating oil leading bow shape and the element wall 31 has approximately the strength increasing T-shape, with free ends 33 and 34 of the element walls 31 and 32 as oil planer for example.
  • the element walls 31 and 32 are formed and arranged so that between the longitudinal walls 25 and 26 relatively large ventilation cross sections 35 and 36 - arrow Pf1 and Pf2 result.
  • FIG. 6 shows how 16 to 20 the strength properties of the latter can be optimized by targeted temperature treatment of the storage chairs.
  • first cooling elements 37 and second cooling elements 38 for example.
  • the first and second cooling elements 37 and 38 are made of ferro metallic material, the first cooling elements 37 being plates which are mounted on either side of the bearing seats e.g. 17 are attached to the side walls 27 and 28.
  • the second cooling elements 38 are formed as cylinders with a circular cross section and provided with the shape of the bore halves 22 of the storage chairs 16 to 20.
  • lightening recesses 39 are integrated - Fig. 5 -, which are provided below the bore halves 22 in said storage chairs.
  • the relief means 39 whose size can be determined empirically or mathematically, are designed in a U-shaped cross-section, and they extend between through holes 40 and 41, which serve to receive fastening screws. With the mounting screws is the Crankshaft bearing bridge 21 on the crankcase 15 'of the internal combustion engine 1 held in position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP05022961A 2004-12-22 2005-10-21 Poutre à support de palier de vilebrequin pour un moteur à combustion interne Withdrawn EP1674704A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004061684A DE102004061684B4 (de) 2004-12-22 2004-12-22 Kurbelwellenlager für eine Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1674704A2 true EP1674704A2 (fr) 2006-06-28
EP1674704A3 EP1674704A3 (fr) 2010-05-05

Family

ID=35892592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05022961A Withdrawn EP1674704A3 (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) US7322336B2 (fr)
EP (1) EP1674704A3 (fr)
JP (1) JP2006177350A (fr)
DE (1) DE102004061684B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061672A1 (de) * 2004-12-22 2006-07-13 Dr.Ing.H.C. F. Porsche Ag Kurbelwellenlagerbrücke für eine Brennkraftmaschine
JP4988520B2 (ja) * 2007-11-13 2012-08-01 ヤンマー株式会社 内燃機関における動力取出し装置
US8833328B2 (en) 2010-12-29 2014-09-16 Ford Global Technologies, Llc Structural frame
US11703012B2 (en) 2015-12-09 2023-07-18 Toyota Motor Engineering & Manufacturing North America, Inc. Engines with multiple thrust bearings

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257651A1 (de) 1972-11-24 1974-05-30 Porsche Ag Druckumlaufschmierung fuer die hauptlager einer brennkraftmaschine
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
US5452692A (en) * 1993-08-27 1995-09-26 Rover Group Limited Internal combusting engine
US20010006053A1 (en) * 1999-12-23 2001-07-05 Stefan Fegg Crank case having an oil separation wall

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU598450B2 (en) * 1984-12-06 1990-06-28 Honda Giken Kogyo Kabushiki Kaisha Crankshaft supporting structure for multicylinder internal combustion engine
DE3444838C2 (de) * 1984-12-08 1986-10-30 Bayerische Motoren Werke AG, 8000 München Gehäuse für Hubkolben-Brennkraftmaschine, insbesondere Motorblock
US4838221A (en) * 1987-01-21 1989-06-13 Mazda Motor Corporation Automotive engine construction
DE3837834C1 (en) * 1988-11-08 1989-06-01 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Crankshaft bearing for an internal combustion engine
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
DE3923986C1 (fr) * 1989-07-20 1990-01-11 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4231284A1 (de) * 1992-09-18 1994-03-24 Bruehl Eisenwerk Zylinderblock für eine Brennkraftmaschine
US5509387A (en) * 1994-04-14 1996-04-23 General Motors Corporation Bearing cap for an internal combustion engine
DE19619974C1 (de) * 1996-05-17 1997-11-20 Daimler Benz Ag Kurbelgehäuse einer Brennkraftmaschine
TW376426B (en) * 1996-10-16 1999-12-11 Honda Motor Co Ltd Engine for vehicle
JPH10196451A (ja) * 1997-01-17 1998-07-28 Suzuki Motor Corp エンジンのクランク室構造
DE19720383C2 (de) * 1997-05-15 1999-08-19 Daimler Chrysler Ag Entlüftungs- und Entölungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine
DE19810464C1 (de) * 1998-03-11 1999-06-02 Daimler Chrysler Ag Kurbelgehäuse für eine Brennkraftmaschine
DE10032095B4 (de) * 2000-07-01 2005-06-23 Dr.Ing.H.C. F. Porsche Ag Kurbeltrieb für eine Brennkraftmaschine
US6715458B1 (en) * 2000-08-03 2004-04-06 General Motors Corporation Engine block crankshaft bearings
US6308680B1 (en) * 2000-09-21 2001-10-30 General Motors Corporation Engine block crankshaft bearings
KR100412841B1 (ko) * 2001-07-23 2003-12-31 현대자동차주식회사 엔진의 래더프레임
DE10357096B4 (de) * 2003-03-01 2014-05-15 Bayerische Motoren Werke Aktiengesellschaft Monolithisches Aluminium-Zylinderkurbelgehäuse für hochbeanspruchte Dieselmotoren
JP4258339B2 (ja) * 2003-10-10 2009-04-30 日産自動車株式会社 内燃機関のシリンダブロック
JP4228964B2 (ja) * 2004-03-30 2009-02-25 三菱自動車エンジニアリング株式会社 エンジンのシリンダブロック構造
JP4186856B2 (ja) * 2004-03-30 2008-11-26 三菱自動車エンジニアリング株式会社 エンジンのシリンダブロック構造
DE102004061672A1 (de) * 2004-12-22 2006-07-13 Dr.Ing.H.C. F. Porsche Ag Kurbelwellenlagerbrücke für eine Brennkraftmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257651A1 (de) 1972-11-24 1974-05-30 Porsche Ag Druckumlaufschmierung fuer die hauptlager einer brennkraftmaschine
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
US5452692A (en) * 1993-08-27 1995-09-26 Rover Group Limited Internal combusting engine
DE4330565C1 (de) 1993-09-09 1994-08-18 Porsche Ag Kurbelwellenlager
US20010006053A1 (en) * 1999-12-23 2001-07-05 Stefan Fegg Crank case having an oil separation wall

Also Published As

Publication number Publication date
DE102004061684A1 (de) 2006-07-13
US20060130798A1 (en) 2006-06-22
EP1674704A3 (fr) 2010-05-05
JP2006177350A (ja) 2006-07-06
US7322336B2 (en) 2008-01-29
DE102004061684B4 (de) 2011-09-15

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