EP0515773A1 - Structure renfort d'un bloc cylindrique de machine à pistons en particulier moteur à combustion interne - Google Patents

Structure renfort d'un bloc cylindrique de machine à pistons en particulier moteur à combustion interne Download PDF

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Publication number
EP0515773A1
EP0515773A1 EP19920102365 EP92102365A EP0515773A1 EP 0515773 A1 EP0515773 A1 EP 0515773A1 EP 19920102365 EP19920102365 EP 19920102365 EP 92102365 A EP92102365 A EP 92102365A EP 0515773 A1 EP0515773 A1 EP 0515773A1
Authority
EP
European Patent Office
Prior art keywords
crankcase
struts
guide surfaces
baffle
walls
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
EP19920102365
Other languages
German (de)
English (en)
Other versions
EP0515773B1 (fr
Inventor
Alfred Sadlauer
Johann Stastny
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0515773A1 publication Critical patent/EP0515773A1/fr
Application granted granted Critical
Publication of EP0515773B1 publication Critical patent/EP0515773B1/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
    • 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
    • F02F7/0021—Construction
    • 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 device for stiffening the crankcase of a reciprocating piston machine according to the features specified in the preamble of claim 1.
  • crankcases for internal combustion engines with housing walls extended far beyond the split bearings of a crankshaft it is e.g. B. from AT-C-308 475, to increase the bending and torsional rigidity and to reduce sound radiation to stiffen the crankcase walls in the free edge areas by a detachable frame with ladder-like struts.
  • the generic DE-C-37 29 966 shows a stiffening device designed as a casting with cross-sectionally U-shaped stiffening struts.
  • crankcase in its lower part which can be closed by an oil pan
  • devices for avoiding the disadvantageous oil leakage by the crank mechanism show DE-A-1 576 361 and DE-A-33 15 304, the respective device being equipped with deflection tongues or cooled cutting-like lamellae arranged obliquely to a lubricating oil roller rotating with the crank mechanism.
  • the invention has for its object to design the stiffening device described above, including the aforementioned oil-repellent device with little additional material, so that the bending and torsional rigidity is increased.
  • a frameless stiffening device also offers the advantage of an arrangement on the crankcase which is separate from an oil pan attachment and thus also simplifies the sealing between the crankcase and the oil pan.
  • the shell-like Stiffening device is preferably designed as a die-cast part in light metal.
  • a reciprocating piston internal combustion engine 1 shown only in sections in cross section comprises a crankcase 2 with crankcase walls 3 and 4.
  • a crank mechanism 5 arranged between them comprises a crankshaft 6 with counterweights 7 on both sides of a diametrically arranged crank pin 8 for a connecting rod 9 for a piston, not shown.
  • a strut 11 with a U-shaped cross section connected to the crankcase walls 3 and 4.
  • the mutually facing legs 12 of the struts 11 of the stiffening device 13 arranged at a crankshaft bearing spacing are baffle or guide surfaces 14 arranged obliquely to a lubricating oil roller rotating or entrained with the crank mechanism 5 in the direction of arrow A, 14 'and 15, 15' and 16, 16 'and 17, 18, 19 firmly connected to each other.
  • baffle or guide surfaces are for the particularly effective reduction of the oil pan work Movement contours of different engine parts - crankshaft counterweights 7 and large bearing eye 20 of the connecting rod 9 - specially adapted.
  • Fig. 2 shows that on the legs 12 of the struts 11 on the movement contour 21 of the crankshaft balancing weights 7 adapted baffle or guide surfaces 14, 14 'and 15, 15' and 16, 16 'are arranged. In their end regions facing one another, these impact or guide surfaces are connected to supporting walls 22, 22 ′ which are essentially parallel to and spaced apart from the legs 12, between which adapted impact or guide surfaces are adapted to the movement contour 23 of the large connecting rod bearing eye 20 17, 18 and 19 are arranged.
  • This enables a frameless design of the device 13 with an arrangement via the struts 11 which is separate from the attachment of an oil pan 24 to the crankcase walls 3 and 4.
  • the device 13 is preferably designed as a die-cast part in light metal with little material expenditure.
  • the lubricating oil separated from the lubricating oil roller rotating with the crankshaft 6 according to arrow A via the aforementioned baffle or guide surfaces is transferred between the connecting rod or guide surfaces 14, 14 '; 15, 15'; 16, 16 'and 17, 18, 19 openings 25 arranged in the stiffening device 13 are guided into the oil pan 24.

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)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP92102365A 1991-05-25 1992-02-13 Structure renfort d'un bloc cylindrique de machine à pistons en particulier moteur à combustion interne Expired - Lifetime EP0515773B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4117153 1991-05-25
DE4117153 1991-05-25

Publications (2)

Publication Number Publication Date
EP0515773A1 true EP0515773A1 (fr) 1992-12-02
EP0515773B1 EP0515773B1 (fr) 1995-06-14

Family

ID=6432444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92102365A Expired - Lifetime EP0515773B1 (fr) 1991-05-25 1992-02-13 Structure renfort d'un bloc cylindrique de machine à pistons en particulier moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP0515773B1 (fr)
AT (1) ATE123845T1 (fr)
DE (1) DE59202494D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947271C2 (de) * 1998-10-06 2001-03-01 Avl List Gmbh Mehrzylinder-Brennkraftmaschine mit zumindest einer ersten Ausgleichswelle
DE19754008C2 (de) * 1997-12-05 2003-04-10 Daimler Chrysler Ag Hubkolbenbrennkraftmaschine
DE10232318A1 (de) * 2002-07-17 2004-02-05 Bayerische Motoren Werke Ag Maschinengehäuse für eine Brennkraftmaschine
DE102005057717A1 (de) * 2005-12-02 2007-06-06 Fev Motorentechnik Gmbh Zylinder-Kurbelgehäuse eines Verbrennungsmotors
DE102005057258A1 (de) * 2005-12-01 2007-06-06 Audi Ag Brennkraftmaschine mit einem mehrteiligen Zylinderkurbelgehäuse
EP1865160A2 (fr) * 2006-06-07 2007-12-12 Ford Motor Company Moteur à combustion interne
US8302577B2 (en) 2008-11-28 2012-11-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315304A1 (de) * 1983-04-27 1984-10-31 Bayerische Motoren Werke AG, 8000 München Fluessigkeitsgekuehlte hubkolben-brennkraftmaschine mit einem kuehlmittel-schmieroel-waermetauscher
EP0187263A1 (fr) * 1984-12-08 1986-07-16 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Bâti pour moteurs à combustion interne
DE3911014A1 (de) * 1988-04-05 1989-10-26 Mazda Motor Zylinderblock-verstaerkungskonstruktion
DE4024313A1 (de) * 1989-09-12 1991-03-21 Mazda Motor Versteifter aufbau des zylinderblocks eines verbrennungsmotors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430364Y2 (fr) * 1986-07-08 1992-07-22

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315304A1 (de) * 1983-04-27 1984-10-31 Bayerische Motoren Werke AG, 8000 München Fluessigkeitsgekuehlte hubkolben-brennkraftmaschine mit einem kuehlmittel-schmieroel-waermetauscher
EP0187263A1 (fr) * 1984-12-08 1986-07-16 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Bâti pour moteurs à combustion interne
DE3911014A1 (de) * 1988-04-05 1989-10-26 Mazda Motor Zylinderblock-verstaerkungskonstruktion
DE4024313A1 (de) * 1989-09-12 1991-03-21 Mazda Motor Versteifter aufbau des zylinderblocks eines verbrennungsmotors

Cited By (8)

* 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
DE19947271C2 (de) * 1998-10-06 2001-03-01 Avl List Gmbh Mehrzylinder-Brennkraftmaschine mit zumindest einer ersten Ausgleichswelle
DE10232318A1 (de) * 2002-07-17 2004-02-05 Bayerische Motoren Werke Ag Maschinengehäuse für eine Brennkraftmaschine
DE102005057258A1 (de) * 2005-12-01 2007-06-06 Audi Ag Brennkraftmaschine mit einem mehrteiligen Zylinderkurbelgehäuse
DE102005057717A1 (de) * 2005-12-02 2007-06-06 Fev Motorentechnik Gmbh Zylinder-Kurbelgehäuse eines Verbrennungsmotors
EP1865160A2 (fr) * 2006-06-07 2007-12-12 Ford Motor Company Moteur à combustion interne
EP1865160A3 (fr) * 2006-06-07 2009-09-30 Ford Motor Company Moteur à combustion interne
US8302577B2 (en) 2008-11-28 2012-11-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine

Also Published As

Publication number Publication date
DE59202494D1 (de) 1995-07-20
EP0515773B1 (fr) 1995-06-14
ATE123845T1 (de) 1995-06-15

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