EP0926319B1 - Dispositif pour séparer les gaz de carter d'un moteur à combustion interne et liaison pour ces gaz - Google Patents

Dispositif pour séparer les gaz de carter d'un moteur à combustion interne et liaison pour ces gaz Download PDF

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Publication number
EP0926319B1
EP0926319B1 EP19980122363 EP98122363A EP0926319B1 EP 0926319 B1 EP0926319 B1 EP 0926319B1 EP 19980122363 EP19980122363 EP 19980122363 EP 98122363 A EP98122363 A EP 98122363A EP 0926319 B1 EP0926319 B1 EP 0926319B1
Authority
EP
European Patent Office
Prior art keywords
crankcase
vapours
separator
engine
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 - Lifetime
Application number
EP19980122363
Other languages
German (de)
English (en)
Other versions
EP0926319A1 (fr
Inventor
Francesco Ferrazzi
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.)
Fiat Auto SpA
Original Assignee
Fiat Auto SpA
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 Fiat Auto SpA filed Critical Fiat Auto SpA
Publication of EP0926319A1 publication Critical patent/EP0926319A1/fr
Application granted granted Critical
Publication of EP0926319B1 publication Critical patent/EP0926319B1/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
    • 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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil

Definitions

  • the present invention refers to a device to separate oil vapours from the crankcase of an internal combustion engine (blow by) provided with manifolds for connection to the blow-by circuit of said vapours and of a manifold to let fresh oil in the crankcase sump.
  • the separator device for the blow-by oil vapours that come from the sump and from the crank chamber, is typically made as a separate part which is added to the engine when this one is being assembled.
  • the European patent application EP 0 291 358 shows a separator device for the blow-by oil vapours from an internal combustion engine crankcase, consisting of a base and a cover in which the base is made by means of fusion integral to the crankcase of the engine in correspondance with one of its side walls.
  • the separator device is closed by a lid plate whit an opening connected to the intake manifold through a pipe line.
  • This separator do not need a support base as the conventional one, but the lid cannot be used neither to enlarge the separator nor to let fresh oil in the crankcase sump.
  • Said object is achived by means of a separator for blow-by vapours presenting the characteristics indicated in claim 1.
  • One of the advantages of the present invention consists in that it presents two access manifolds to the separator from the crank chamber, said access manifolds being spaced and located on a plane parallel to the axis of the crankcase. This makes it possible to keep one manifold constantly free, even in the case the inclination of the engine is very high, so that no oil can be sucked into the crank chamber.
  • the reference number 2 indicates the crankcase of an internal combustion engine made by means of ground fusion.
  • the crankcase presents in-line cylinders and one crank chamber 5 on the side wall of the cylinders.
  • at least two passages 6 and 7 for the oil vapours are built by fusion in correspondence with the second and third bay of the crankcase. Said passages, which are positioned in order not to interfere with the connecting rods, and which lay, spaced, on a plane parallel to the longitudinal axis of the crankcase, make the crank chamber communicate with the external wall of the crankcase through the holes 9 and 10.
  • the holes 9 and 10 open inside a body forming the lower section, or base, 11, of a compartment for the separation 12 of oil vapours, said compartment being basically shaped as an equilateral triangle, in correspondence with the ends of one of its sides which is basically parallel to the plane defined by the upper face of the crankcase.
  • This separator built by fusion together with the crankcase, presents inside walls forming a labyrinth and one vertex pointing towards the lower part of the crankcase.
  • the upper section or cover 13 of the separator compartment which is made separately, again presents in its internal part the labyrinth pattern of the crankcase 11, and presents two manifolds 15 and 16, being the first one 15 adapted to carry vapours to the blow-by system and the second one 16 used as an inlet for fresh oil.
  • a passage 18, is made centrally, in correspondence with the vertex pointing downwards, in the separator 12 and in the wall of the crankcase, and a manifold 19 built by fusion and connected to it, allow to introduce oil in the engine sump.
  • the base and the cover of the separator are jointed by conventional means, i.e. screws, and a seal (not shown) can be put between them if necessary.
  • the two manifolds spaced and parallel to the axis of the crankcase, allow the suction of blow-by vapours to be always free, independently from the working position of the engine.

Landscapes

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

Claims (4)

  1. Séparateur de vapeurs d'huile provenant d'un carter de moteur à combustion interne (fuite des gaz) consistant en une embase (11) et un capotage, dans lequel l'embase est fabriquée par fusion en une seule pièce avec le carter (2) du moteur, de manière correspondante à l'une des parois latérales de celui-ci, et est raccordée à la chambre de vilebrequin du moteur par l'intermédiaire d'au moins un collecteur (6, 7) fabriqué par fusion dans la paroi latérale du carter, et dans lequel le capotage (13) possède une tubulure (15) pour transférer les vapeurs de fuite des gaz vers le corps de papillon du système d'alimentation du moteur, caractérisé en ce que le capotage (13) possède une autre tubulure (16) qui permet à l'huile fraíche de pénétrer dans le moteur.
  2. Séparateur selon la revendication 1, caractérisé en ce que le capotage (13) et l'embase sont munis de parois internes qui sont au même niveau, et forment ainsi un labyrinthe.
  3. Séparateur selon la revendication 1, caractérisé en ce que ladite autre tubulure est raccordée au carter d'huile du moteur, par l'intermédiaire d'un passage (18) ménagé dans le séparateur de manière correspondante au sommet pointant vers le bas, et par l'intermédiaire d'un collecteur (19) fabriqué, par fusion, en une seule pièce avec la paroi du carter (2).
  4. Séparateur selon les revendications précédentes, caractérisé en ce que des encoches (21) permettant le passage de l'huile de décantation sont prévues dans les parois qui forment le labyrinthe.
EP19980122363 1997-12-23 1998-11-25 Dispositif pour séparer les gaz de carter d'un moteur à combustion interne et liaison pour ces gaz Expired - Lifetime EP0926319B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO971133 IT1305593B1 (it) 1997-12-23 1997-12-23 Dispositivo separatore di vapori di olio dal basamento di un motore acombustione interna e collegamento per il ricircolo di tali vapori
ITTO971133 1997-12-23

Publications (2)

Publication Number Publication Date
EP0926319A1 EP0926319A1 (fr) 1999-06-30
EP0926319B1 true EP0926319B1 (fr) 2002-10-23

Family

ID=11416229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980122363 Expired - Lifetime EP0926319B1 (fr) 1997-12-23 1998-11-25 Dispositif pour séparer les gaz de carter d'un moteur à combustion interne et liaison pour ces gaz

Country Status (4)

Country Link
EP (1) EP0926319B1 (fr)
DE (1) DE69808877T2 (fr)
ES (1) ES2182206T3 (fr)
IT (1) IT1305593B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112008001694B4 (de) * 2007-07-17 2018-05-09 Avl List Gmbh Brennkraftmaschine mit einem Kurbelgehäuse für mehrere Zylinder

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3911950B2 (ja) * 2000-02-25 2007-05-09 スズキ株式会社 自動二輪車
GB0212588D0 (en) 2002-05-30 2002-07-10 Ricardo Consulting Eng Reciprocating piston internal combustion engines
JP4249504B2 (ja) * 2003-02-17 2009-04-02 マツダ株式会社 オイルセパレータ構造及びオイルセパレータユニット
JP2004340096A (ja) 2003-05-19 2004-12-02 Fuji Heavy Ind Ltd クランクケースのブリーザ装置
GB2428600A (en) * 2005-08-04 2007-02-07 Ec Power As A separating device
JP2009150350A (ja) * 2007-12-21 2009-07-09 Toyota Motor Corp オイル分離装置
DE102010004910A1 (de) * 2010-01-19 2011-07-21 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Mich. Ölabscheidevorrichtung
FR2985769A1 (fr) * 2012-01-12 2013-07-19 Peugeot Citroen Automobiles Sa Bloc-moteur d'un moteur a combustion interne
DE102013008117A1 (de) * 2013-05-11 2014-11-13 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Motorteil für einen Verbrennungsmotor und Verbrennungsmotor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124307A (fr) * 1954-06-03 1956-10-09 Moteur à combustion interne
DE3713210A1 (de) * 1987-04-18 1988-11-03 Porsche Ag Entlueftungsvorrichtung mit integriertem oelabscheider
CA1328588C (fr) * 1987-05-15 1994-04-19 Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co., Ltd .) Moteur a combustion interne
JP2690968B2 (ja) * 1988-09-30 1997-12-17 ヤマハ発動機株式会社 Ｖ形エンジンの冷却装置
US5474035A (en) * 1994-07-08 1995-12-12 Outboard Marine Corporation Engine breather construction
DE19608066C1 (de) * 1996-03-02 1997-06-05 Daimler Benz Ag Kurbelraumentlüftung für eine Brennkraftmaschine
TW376426B (en) * 1996-10-16 1999-12-11 Honda Motor Co Ltd Engine for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112008001694B4 (de) * 2007-07-17 2018-05-09 Avl List Gmbh Brennkraftmaschine mit einem Kurbelgehäuse für mehrere Zylinder

Also Published As

Publication number Publication date
ES2182206T3 (es) 2003-03-01
DE69808877D1 (de) 2002-11-28
EP0926319A1 (fr) 1999-06-30
IT1305593B1 (it) 2001-05-09
ITTO971133A1 (it) 1999-06-23
DE69808877T2 (de) 2003-08-07

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