EP0942155B1 - Brennkraftmaschine mit Anti-Schaumvorrichtung - Google Patents

Brennkraftmaschine mit Anti-Schaumvorrichtung Download PDF

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Publication number
EP0942155B1
EP0942155B1 EP19990400616 EP99400616A EP0942155B1 EP 0942155 B1 EP0942155 B1 EP 0942155B1 EP 19990400616 EP19990400616 EP 19990400616 EP 99400616 A EP99400616 A EP 99400616A EP 0942155 B1 EP0942155 B1 EP 0942155B1
Authority
EP
European Patent Office
Prior art keywords
screen
internal combustion
combustion engine
oil
forming means
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
EP19990400616
Other languages
English (en)
French (fr)
Other versions
EP0942155A1 (de
Inventor
Jean-Claude Kuhn
Jean-Francois Lessous
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP0942155A1 publication Critical patent/EP0942155A1/de
Application granted granted Critical
Publication of EP0942155B1 publication Critical patent/EP0942155B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
    • F01M11/064—Movement
    • 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
    • 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
    • F01M2011/0054—Fastening to the cylinder block

Definitions

  • the present invention relates to the field anti-bubbling devices mounted in the oil sumps of internal combustion engines intended in particular to equip vehicles automobiles.
  • An internal combustion engine includes, in general, a cylinder block receiving a cylinder head its upper end and an oil pan at its lower end.
  • the lubrication circuit of such an engine conventionally comprises a pump driven by the crankshaft and which sucks the oil stored in the oil pan to send it, after filtration, through pipes suitable for moving engine parts, such as crankshaft bearings, connecting rods, pistons or camshaft, oil returns then by gravity in the oil pan.
  • Document FR-A-2.650.033 discloses by example, a screen in the form of a plate in shaped sheet to protect crankshaft and crankshaft, oil contained in the crankcase oil and oil falling from the cylinder head.
  • the splash screens are fixed by screws directly on the bearing caps of the crankshaft or even directly on corresponding bosses carried by the housing oil or the cylinder block.
  • Such a provision has the disadvantage of complicating motor assembly and increase the cost of this last.
  • the object of the present invention is to remedy this drawback by proposing an engine with an easy-to-splash prevention device mount and requiring no fixing means reported.
  • the internal combustion engine according to the invention is of the type comprising a cylinder block inside which is housed a crankshaft connected to pistons by connecting rods, a oil pan and means forming an anti-splash screen to prevent the oil slick contained in the oil pan to come into contact with the crankshaft and connecting rods.
  • the means forming a screen are immobilized in position simply by pinching of a plurality of holding tabs between the lower edge of the cylinder block and the corresponding edge of the oil pan.
  • the legs support are housed in a groove corresponding seal interposed between the oil pan and the cylinder block.
  • the positioning of the screen means is ensured by ribs extending under the legs of maintenance.
  • the means forming a screen include housings intended for come to fit on bearing caps of the crankshaft to ensure prepositioning during their mounting on the cylinder block.
  • the means forming a screen have fixing arms clip-on allowing their hanging on the cylinder block.
  • the means forming a screen have boxes open towards the oil pan intended in particular to limit the displacement of the oil slick.
  • the means forming a screen are formed by a monobloc shell obtained in molded plastic.
  • the base of the cylinder block 1 has a peripheral edge or sidewalk 2 extending in projecting perpendicular to the side walls of the cylinder block 1 towards the inside of the latter, towards the crankshaft. against this edge peripheral 2 of cylinder block 1 comes to take press the corresponding peripheral edge 4 of the oil pan 3.
  • the fixing of the oil sump 3 on the cylinder block 1 is secured by screws not figured cooperating with the peripheral edges above 2 and 4 forming a flange and counter flange.
  • a type 5 seal elastomer housed in a groove formed on the edge device 4 of the oil pan 3. Dimensions of seal 5 are suitable for obtaining a rate predetermined compression when the edge device 4 comes into contact with edge 2.
  • an anti-splash screen 6 is interposed between the cylinder block 1 and the oil pan 3 in order to prevent the oil in the oil pan does not come into contact with the crankshaft and crankshaft.
  • This anti-splash screen 6 is produced in the form a one-piece molded plastic shell, such as a glass fiber filled polyamide. Screen 6 is shaped to wrap around the bottom of the crankshaft not shown and also the crankshaft not shown.
  • the anti-splash screen 6 has a shape general semi-cylindrical corresponding substantially to the envelope curve of the trajectories crankshaft and crankshaft. The dimensions of screen 6 are adjusted to leave a clearance extremely reduced between screen and hitch mobile of the order of a few millimeters.
  • Screen 6 has openings 13 arranged substantially under each of the connecting rods. These openings are oriented transversely in the direction of motor rotation, to evacuate oil splashes from the lower engine (piston, connecting rods, journals, crank pins, etc.) to the housing oil.
  • Screen 6 following the shape of the hitch mobile has walls 8 facing crankshaft bearing caps. These walls 8 form transverse boxes 15 open at direction of the oil pan. The boxes 15 isolate the crankshaft peer to peer and the connecting rod of the oil slick and on the other hand they make it possible to stiffen the screen 6.
  • the boxes 15 define on the other hand partitions on the underside of screen 6 which have the advantage of limiting the movement of the oil slick in the sump oil 3 and therefore planing. So the pump aspiration remains primed even in case of significant movements of the oil.
  • Immobilization in position of the screen 6 is ensured by a plurality of lugs holding 10 projecting transversely relative to to the side edges of the screen 6 which come pinch between the edge 2 arranged at the base of the cylinder block 1 and the edge corresponds 4 to the housing oil 1 with interposition of the seal 5.
  • the seal 5 presents a transversely opening groove suitable for receive the retaining tabs 10. It is thus possible to tighten the holding tabs 10 of the splash screen 6 without affecting the tightness of the oil pan assembly 3 on the cylinder block 1.
  • cleats or ribs of positioning 11 are arranged under the legs of maintenance 10. These cleats are intended to come immobilize the side edges of the screen 6 against the corresponding side edges of the oil pan 3.
  • the anti-splash screen 6 presents by elsewhere clipping arms 9 allowing the holding the screen on the cylinder block when disassembly of the oil pan 3 or during engine assembly operations on chains mounting.
  • the arms 9 which are shaped for have some elasticity, whatever the material used, have at their end a protruding rim intended to come to rest on the edge 2 formed at the base of the cylinder block 1.
  • the present invention applies also for engines with housing beams cap interposed between the cylinder block and the oil pan.
  • the mounting of the screen is operated between the hat beam and the oil pan.

Landscapes

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

Claims (7)

  1. Verbrennungsmotor mit einem Zylinderblock (1), in dessen Inneren eine Kurbelwelle angeordnet ist, die über Pleuel mit Kolben verbunden ist, mit einer Ölwanne (3) und mit einer Anordnung (6), die eine Abschirmung bildet zur Verhinderung einer Berührung der in der Ölwanne vorhandenen Ölschicht mit der Kurbelwelle und den Pleueln, dadurch gekennzeichnet, dass die die Abschirmung bildende Anordnung (6) durch den Klemmsitz einer Vielzahl von Halteteilen (10) zwischen dem unteren Rand (2) des Zylinderblocks (1) und dem entsprechenden Rand (4) der Ölwanne (3) in ihrer Stellung gehalten wird.
  2. Verbrennungsmotor nach Anspruch 1, dadurch gekennzeichnet, dass die Halteteile (10) in eine entsprechende Nut in einer Dichtung (5) eingreifen, die zwischen der Ölwanne (3) und dem Zylinderblock (1) vorgesehen ist.
  3. Verbrennungsmotor nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Positionierung der die Abschirmung bildenden Anordnung (6) durch Rippen (11) gewährleistet wird, die sich unterhalb der Halteteile (10) erstrecken.
  4. Verbrennungsmotor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die die Abschirmung bildende Anordnung (6) Aussparungen (7) aufweist, die dazu dienen, die Lagerdeckel der Kurbelwelle zu umgeben um so eine Vorpositionierung der die Abschirmung bildenden Anordnung (6) während ihres Anbaus an den Zylinderblock zu gewährleisten.
  5. Verbrennungsmotor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die die Abschirmung bildende Anordnung (6) aufsteckbare Klemmnocken (9) aufweist, die ihre Verankerung am Zylinderblock (1) ermöglichen.
  6. Verbrennungsmotor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die die Abschirmung bildende Anordnung (6) zur Ölwanne (3) hin offene Fächer (15) aufweist, die insbesondere zur Begrenzung der Bewegungen der Ölschicht dienen.
  7. Verbrennungsmotor nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die die Abschirmung bildende Anordnung (6) aus einer Schale (6) aus gegossenem Kunststoff besteht.
EP19990400616 1998-03-13 1999-03-12 Brennkraftmaschine mit Anti-Schaumvorrichtung Expired - Lifetime EP0942155B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9803107 1998-03-13
FR9803107A FR2776017B1 (fr) 1998-03-13 1998-03-13 Moteur a combustion interne comportant un dispositif anti-barbotage

Publications (2)

Publication Number Publication Date
EP0942155A1 EP0942155A1 (de) 1999-09-15
EP0942155B1 true EP0942155B1 (de) 2003-05-14

Family

ID=9524016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990400616 Expired - Lifetime EP0942155B1 (de) 1998-03-13 1999-03-12 Brennkraftmaschine mit Anti-Schaumvorrichtung

Country Status (4)

Country Link
EP (1) EP0942155B1 (de)
DE (1) DE69907786T2 (de)
ES (1) ES2193669T3 (de)
FR (1) FR2776017B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6863039B2 (en) 2001-08-24 2005-03-08 Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg Casing cover having a device for assuring sealing forces
DE102008060409A1 (de) * 2008-11-28 2010-06-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102008060412B4 (de) 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705270B1 (en) * 2000-04-26 2004-03-16 Basf Corporation Oil pan module for internal combustion engines
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
ATE380932T1 (de) 2001-04-10 2007-12-15 Bayerische Motoren Werke Ag Vorrichtung zur anordnung zweier einen einbauraum umschliessenden gehäuseteile einer brennkraftmaschine
DE10119937A1 (de) * 2001-04-23 2002-11-14 Joma Polytec Kunststofftechnik Mehrteiliges Gehäuse sowie Ölwannenanordnung für eine Maschine
DE10141569B4 (de) * 2001-08-24 2004-09-02 Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg Gehäusedeckel mit akustisch entkoppeltem Anschlag
FR2878893B1 (fr) * 2004-12-07 2007-03-02 Filtrauto Sa Dispositif d'echange thermique destine a etre dispose dans un carter d'huile, carter d'huile et moteur a combustion interne comprenant un tel dispositif d'echange thermique
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
JP4472569B2 (ja) * 2005-03-29 2010-06-02 太平洋工業株式会社 二槽オイルパンの取付構造
DE102008024265A1 (de) * 2008-05-20 2009-11-26 Ibs Filtran Kunststoff-/ Metallerzeugnisse Gmbh Dichtung für Fluid gefüllte Behälter
DE102008060411B4 (de) * 2008-11-28 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
FR2964146B1 (fr) * 2010-08-27 2014-08-29 Peugeot Citroen Automobiles Sa Plaque anti emulsion permettant l'optimisation de la lubrification de liaisons mecaniques
CN116557105B (zh) * 2023-05-05 2025-08-15 广西玉柴机器股份有限公司 一种发动机塑料油底壳机油过滤装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8124422U1 (de) * 1981-08-21 1982-10-28 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Vorrichtung zur sicherung des oelstandes in der oelwanne einer fahrzeug-reihenbrennkraftmaschine
DE3840792A1 (de) * 1988-12-03 1990-06-07 Daimler Benz Ag Oelwanne fuer eine mehrzylindrige brennkraftmaschine
DE3923986C1 (de) 1989-07-20 1990-01-11 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6863039B2 (en) 2001-08-24 2005-03-08 Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg Casing cover having a device for assuring sealing forces
DE102008060409A1 (de) * 2008-11-28 2010-06-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102008060412B4 (de) 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor
DE102008060409B4 (de) 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verbrennungsmotor

Also Published As

Publication number Publication date
FR2776017A1 (fr) 1999-09-17
DE69907786D1 (de) 2003-06-18
EP0942155A1 (de) 1999-09-15
DE69907786T2 (de) 2004-03-18
FR2776017B1 (fr) 2000-05-05
ES2193669T3 (es) 2003-11-01

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