EP0187263B1 - Bâti pour moteurs à combustion interne - Google Patents

Bâti pour moteurs à combustion interne Download PDF

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Publication number
EP0187263B1
EP0187263B1 EP85115364A EP85115364A EP0187263B1 EP 0187263 B1 EP0187263 B1 EP 0187263B1 EP 85115364 A EP85115364 A EP 85115364A EP 85115364 A EP85115364 A EP 85115364A EP 0187263 B1 EP0187263 B1 EP 0187263B1
Authority
EP
European Patent Office
Prior art keywords
crankcase
housing wall
inner housing
outer housing
oil
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
Application number
EP85115364A
Other languages
German (de)
English (en)
Other versions
EP0187263A1 (fr
Inventor
Jiri Seidl
Franz Zinnecker
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 EP0187263A1 publication Critical patent/EP0187263A1/fr
Application granted granted Critical
Publication of EP0187263B1 publication Critical patent/EP0187263B1/fr
Expired 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
    • F02F7/0053—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • 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
    • F02F7/0002—Cylinder arrangements
    • F02F7/0012—Crankcases of V-engines
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Definitions

  • the invention is based on the preamble of claim 1 from US-A-1 948 810.
  • the inner housing wall forms a transverse wall that stiffens the lower part of the crankcase.
  • the transverse wall is arranged in the area of a central crankshaft bearing and has a molded-on bearing cover.
  • the lubricating oil flowing back from the upper region of the housing, in particular a cylinder head falls freely into the oil pan connected to the lower part of the crankcase.
  • Part of the returning lubricating oil can be caught by rotating engine parts, whereby oil thrown off engine parts causes a strong foaming of the lubricating oil flowing back on the housing walls.
  • Heavily foamed lubricating oil is known to be of considerable disadvantage, especially when using hydraulic valve lash adjusters.
  • the invention has for its object to design a generic housing so that a more effective stiffening of the crankcase upper part is achieved with the inner housing wall and that the lubricating oil flowing back from the upper housing area is kept away from the rotating engine parts in the oil pan in a structurally simple manner .
  • the core of the invention is a line arranged in the crankcase upper part for back-flowing lubricating oil, which is emptied into a space above the oil pan, which is separated from the crankcase of the rotating engine parts by a semi-cylindrical shell of the lower crankcase part.
  • the latter has separate passages bathing the inner housing wall of the crankcase lower part. This shell combines the advantage of the lubricating oil that is guided past the rotating engine parts with the advantage of an effective stiffening of the crankcase.
  • DE-C-10 43 710 discloses a crankcase lower part designed as a semi-cylindrical shell for connection to a crankcase upper part, but for the housing of a two-stroke internal combustion engine. Since the lubricating oil is atomized with the fuel-air mixture in the crankcase pumps to the corresponding bearings of the crankshaft, there is no problem with the return of the lubricating oil described above. Thus, there is also no suggestion to arrange a semi-cylindrical shell in a lower part of the generic crankcase. Furthermore, from DE-OS 19 64 049 a non-generic crankcase for a reciprocating internal combustion engine is known, which comprises walls which are pulled down deeply over the center of the crankshaft and are connected to an oil pan.
  • the outer housing walls which run approximately from the center of the crankshaft near the contours of connecting rod violins, are each assigned inner housing walls in the area of the connecting rod bearings. Although the inner and outer housing walls serve to guide lubricating oil flowing back from the upper housing area into the oil pan, the inner housing walls do not form a component that essentially separates the crankcase from the oil pan.
  • crankcase 'use lower part is specified in claim 2.
  • crankcase lower part can be screwed to the bearing caps of the crankshaft bearing over the semi-cylindrical shell for further stiffening according to the arrangement according to DE-C-10 43 710.
  • the bearing caps can be connected in one piece to the crankcase lower part.
  • a housing 1 for a reciprocating piston internal combustion engine with cylinders 2 arranged in a V-shape comprises an upper crankcase part 3 and a separate lower crankcase part 4, which in turn is closed at the bottom by an oil pan 5.
  • the crankcase lower part 4 comprises an outer housing wall 6, of which opposing parts 6 'and 6 "are connected to one another by an inner housing wall 7.
  • the inner housing wall 7 is semicircular in cross-section and runs close to the contour of the connecting rod violins inner housing wall 7 is also connected on the one hand via a fastening flange 8 to the outer housing wall part 6 'and on the other hand via a fastening flange 9 to the outer housing wall part 6 ".
  • First lubricating oil passages 10 and 11 are formed in the fastening flanges 8 and 9, respectively Passages 10 and 11 are each in oil-carrying communication with a chamber 12 in the crankcase upper part 3.
  • the lubricating oil flowing out of the cylinder heads (not shown) is fed to each chamber 12 through a return channel 13 in the cylinder jacket 14.
  • the returning lubricating oil passes through passages 10 and 11 into a space 15 above the oil pan 5, which is largely separated from the crank chamber 16 of the rotating engine parts by the partition 7.
  • the lubricating oil flowing back from the upper housing areas thus passes into the oil pan 5 without being defoamed.
  • the inner housing wall 7 which is designed as a semi-cylindrical shell, has further passages 17 which connect the crank chamber 16 to the chamber 15 above the oil pan 5.
  • These second free passages 17, which are distributed over the circumference of the housing wall 7, are arranged approximately tangentially. In the case of a crankcase lower part 4 designed as a light metal die-cast part, these second passages 17 can be formed during casting.
  • crankcase lower part 40 in which an outer housing wall part 60 ′′ is arranged lower and closer to the partition wall 70.
  • the first passage 110 starting from the flange 90 is channel-like and opens between the housing wall part 60 ′′ and the inner housing wall 70 out.
  • the crankcase lower part 40 strikes against the bearing cover 19 via extensions 18 on the inner housing wall 70 and is screwed to it.
  • crankcase lower part 400 only has a first free passage 1 000 in the mounting flange 800 for the undisturbed return of the lubricating oil from the upper housing area into the oil pan.
  • bearing caps 190 with the crankcase lower part 400 are structurally integrated via the inner housing wall 700.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Claims (2)

1. Bâti pour moteurs à piston alternatif à combustion interne comprenant une partie supérieure (3) de bâti de vilebrequin et, bridée sur elle, une partie inférieure (4) de bâti de vilebrequin comportant une paroi externe (6) de bâti et une paroi interne (7) de bâti, laquelle relie entre elles les parties opposées (6', 6") de la paroi externe de bâti, la partie inférieure de bâti de vilebrequin, qui assure le raidissement de la partie supérieure de bâti de vilebrequin, comportant des passages libres pour l'huile de lubrification en retour, qui est collectée dans un carter à huile (5) fixé de façon amovible à la paroi externe du bâti, bâti caractérisé en ce que la paroi interne de bâti (7, 70, 700) s'étendant au voisinage du contour de la tête de bielle ou des têtes de bielles, sépare le logement (16) du vilebrequin d'un espace (15) au-dessus du carter à huile (5), et est d'une seule pièce avec les brides de fixations (8, 80, 800 ; 9, 90, 900) sur les parties (6', 60', 600' ; 6', 60") de la paroi externe (6) de la partie inférieure (4) du bâti de vilebrequin, pour assurer sa liaison avec la partie supérieure (3) du bâti du vilebrequin, tandis qu'en outre, tout au moins dans une bride de fixation entre une partie de la paroi externe du bâti et la paroi interne du bâti, un passage (10, 100, 1 000 ; 11,110) est ménagé pour une circulation d'huile entre une canalisation de retour (12, 13) dans la partie supérieure (3) du bâti de vilebrequin et le carter à huile (5), et que d'autres passages (17), répartis à la périphérie de la paroi interne du bâti, relient le logement (16) du vilebrequin au carter à huile (5).
,2. Bâti selon la revendication 1, caractérisé en ce que la partie inférieure (4, 40, 400) du bâti du vilebrequin est une pièce coulée sous pression en métal léger, tandis que la paroi interne (7, 70, 700) du bâti a une section transversale en forme d'arc semi-circulaire et comporte des passages (17) disposés à peu près tangentiellement.
EP85115364A 1984-12-08 1985-12-04 Bâti pour moteurs à combustion interne Expired EP0187263B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3444838 1984-12-08
DE3444838A DE3444838C2 (de) 1984-12-08 1984-12-08 Gehäuse für Hubkolben-Brennkraftmaschine, insbesondere Motorblock

Publications (2)

Publication Number Publication Date
EP0187263A1 EP0187263A1 (fr) 1986-07-16
EP0187263B1 true EP0187263B1 (fr) 1988-05-04

Family

ID=6252254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115364A Expired EP0187263B1 (fr) 1984-12-08 1985-12-04 Bâti pour moteurs à combustion interne

Country Status (5)

Country Link
US (1) US4773366A (fr)
EP (1) EP0187263B1 (fr)
JP (1) JPH0629537B2 (fr)
DE (2) DE3444838C2 (fr)
WO (1) WO1986003551A1 (fr)

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US4993369A (en) * 1989-02-27 1991-02-19 Outboard Marine Corporation Internal combustion engine
USRE35382E (en) * 1989-07-14 1996-11-26 Yamaha Hatsudoki Kabushiki Kaisha Lubrication arrangement for engine
DE3923986C1 (fr) * 1989-07-20 1990-01-11 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4012415A1 (de) * 1990-04-19 1991-10-24 Audi Ag Zylinderkurbelgehaeuse fuer eine fahrzeug-brennkraftmaschine
DE4014788C1 (fr) * 1990-05-09 1991-03-14 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
DE59202494D1 (de) * 1991-05-25 1995-07-20 Bayerische Motoren Werke Ag Vorrichtung zum Versteifen des Kurbelgehäuses einer Hubkolbenmaschine, insbesondere Brennkraftmaschine.
WO1993013302A1 (fr) * 1991-12-23 1993-07-08 Michael Zoche Moteur avec deshuileur
DE4204522C1 (en) * 1992-02-15 1993-04-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De IC engine silencer with lower cover shell - has oil flow shell aperture opening into noise damping chamber
DE4231284A1 (de) * 1992-09-18 1994-03-24 Bruehl Eisenwerk Zylinderblock für eine Brennkraftmaschine
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DE10026113B4 (de) * 2000-05-26 2013-07-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Brennkraftmaschine mit einem zwischen Kurbelraum und Ölwanne angeordneten Ölabweisteil
DE10232318A1 (de) * 2002-07-17 2004-02-05 Bayerische Motoren Werke Ag Maschinengehäuse für eine Brennkraftmaschine
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
DE102004017738A1 (de) * 2004-04-10 2005-11-10 Bayerische Motoren Werke Ag Maschinengehäuse für eine Brennkraftmaschine
FR2878892B1 (fr) * 2004-12-07 2007-03-02 Filtrauto Sa Carter d'huile pour moteur a combustion interne et moteur a combustion interne comprenant un tel carter d'huile
ATE509251T1 (de) * 2004-12-07 2011-05-15 Filtrauto Ölwanne für brennkraftmaschine
DE102004061684B4 (de) * 2004-12-22 2011-09-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kurbelwellenlager für eine Brennkraftmaschine
DE102005028775A1 (de) * 2005-06-22 2007-01-04 Daimlerchrysler Ag Kurbelgehäuse für eine Brennkraftmaschine
DE102006020881A1 (de) * 2006-05-05 2007-11-08 Deutz Ag Als Hohlkörper ausgebildete Ölwanne
JP4225327B2 (ja) * 2006-07-11 2009-02-18 トヨタ自動車株式会社 内燃機関のオイル戻し構造
DE102008060411B4 (de) 2008-11-28 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102008060412B4 (de) 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102013002233A1 (de) * 2013-02-11 2014-08-14 Man Diesel & Turbo Se Brennkraftmaschine und Abschirmeinrichtung für eine Zylinderlaufbuchse einer Brennkraftmaschine
DE202014007434U1 (de) * 2014-09-12 2015-12-15 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Lagerdeckel für das Lager einer Welle und Antriebseinheit mit einem solchen Lagerdeckel
GB2550113B (en) * 2016-05-03 2019-07-24 Ford Global Tech Llc Crankcase oil catcher with an aperture and seal.
CN107816371A (zh) * 2016-09-13 2018-03-20 福特环球技术公司 用于发动机总成的油底壳以及发动机曲轴通风系统
KR101861052B1 (ko) * 2018-01-05 2018-05-24 박상원 아노다이징 장치용 미세기포 공급부
EP4303408A1 (fr) * 2022-07-07 2024-01-10 Volvo Truck Corporation Ensemble carter de moteur à combustion interne

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Also Published As

Publication number Publication date
JPS62501094A (ja) 1987-04-30
DE3562507D1 (en) 1988-06-09
DE3444838C2 (de) 1986-10-30
DE3444838A1 (de) 1986-06-12
US4773366A (en) 1988-09-27
JPH0629537B2 (ja) 1994-04-20
EP0187263A1 (fr) 1986-07-16
WO1986003551A1 (fr) 1986-06-19

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