EP0436079B1 - Séparateur d'huile pour le gaz d'un carter d'un moteur à combustion interne - Google Patents

Séparateur d'huile pour le gaz d'un carter d'un moteur à combustion interne Download PDF

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Publication number
EP0436079B1
EP0436079B1 EP90120042A EP90120042A EP0436079B1 EP 0436079 B1 EP0436079 B1 EP 0436079B1 EP 90120042 A EP90120042 A EP 90120042A EP 90120042 A EP90120042 A EP 90120042A EP 0436079 B1 EP0436079 B1 EP 0436079B1
Authority
EP
European Patent Office
Prior art keywords
oil
wall
casing
oil separator
insert
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
EP90120042A
Other languages
German (de)
English (en)
Other versions
EP0436079A1 (fr
Inventor
Alfred Koch
Dieter Stephan
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 EP0436079A1 publication Critical patent/EP0436079A1/fr
Application granted granted Critical
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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
    • 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 invention relates to an oil separator according to the preamble of claim 1.
  • a ventilation device with an integrated oil separator for the crankcase of an internal combustion engine which comprises a two-part housing.
  • the upper part and lower part of the housing have projections which mesh like teeth and thus form a labyrinth for separating oil droplets from the crankcase gases.
  • pins arranged on the upper part which penetrate openings in the lower part and the free ends of which are subsequently thermoformed, the upper and lower parts are permanently connected to one another.
  • JP-A-60 16 2005 discloses an oil separator for gases from a crankcase of an internal combustion engine, which has a housing with an insert arranged therein. Between the housing and the insert, a first and downstream a second, essentially semicircular delay section for gases are formed, with an oil collection area being arranged downstream of each section.
  • the object of the present invention is to provide an improved oil separator for the crankcase gases of an internal combustion engine, which offers a simple, inexpensive construction and ensures easy assembly and disassembly.
  • the oil separator according to the invention is characterized by a simple, two-part construction, which allows quick assembly and disassembly with few fasteners.
  • An insert arranged in a trough-shaped housing delimits between the inner wall of the housing and the insert a space which is divided by a wall into two delay lines for the gases flowing from the crankcase through the oil separator.
  • the oil droplets contained in the gases separate along the two delay sections as well as on the wall and a further wall arranged in front of a nozzle for the discharge of the gases and flow together in two oil collection areas. From there they flow back into the crankcase.
  • the oil separator is independent of location and can be attached to any area of the crankcase and only needs an opening in the crankcase for the gases to escape and a contact surface for assembly.
  • the insert does not require any separate fasteners, but is held in a form-fitting manner by the housing. If the oil separator becomes blocked, it can be easily dismantled and cleaned after loosening the screws passed through the housing.
  • the oil separator 2 which is arranged horizontally on a crankcase 1 of an internal combustion engine, not shown, consists of a trough-shaped housing 3 and an insert 5 arranged in the opening 4.
  • the insert 5 leaves a space 8 between its outer surface 6 and the inner wall 7 of the housing 3.
  • the opening 4 is closed by the insert 5 except for a remaining gap 9.
  • a first delay line 10 and a downstream second delay line 11 are formed by the outer surface 6 and the inner wall 7.
  • the first delay line 10 extends from the gap 9 to a downstream first oil collection area 12, the second delay line 11 from there to a second downstream oil collection area 13.
  • Central above the oil collection area 12 is a wall transverse to the longitudinal extent of the housing 3 14 arranged, which partially separates the delay lines 10, 11 from each other.
  • oil collection area 13 Above the oil collection area 13 is a tubular connector 16 at one end 15 of the housing 3 for the removal of the cleaned gases from the crankcase arranged.
  • oil separator 2 Centrally above the oil collection area 13, the oil separator 2 has a further wall 17 in the sectional area of the housing 3 and connecting piece 16.
  • the flange 18 penetrate four openings 19 which serve to receive screws for fastening the oil separator 2 to the crankcase 1.
  • bulges 20 pointing inwards are arranged in the housing 3.
  • the underside 21 of the flange 18 has a circumferential recess 22 in the region of the inner wall 7, into which a corresponding projection 23 arranged on the insert 5 engages.
  • the insert 5 is held in a form-fitting manner by indentations 24 in the housing 4, which include the bulges 20.
  • the oil collection area 12 is formed laterally by boundary walls 25 and in its bottom three openings 26 are arranged for the drainage of the collected oil.
  • a boundary wall 27 adapted to the inner wall 7 forms at the end 15 the oil collecting area 13 which has an opening 26.
  • a circumferential groove 28 for receiving a seal is provided in the underside 18.
  • the insert 5 When installing the oil separator 2, the insert 5 is first pushed into the opening 4 of the housing 3. The insertion depth of the insert 5 into the housing 3 is limited by the recess 22 and the projection 23. The insert 5 is secured against falling out by a slight pressure between the bulges 20 and the indentations 24. A seal is inserted into the groove 28, which prevents oil from escaping onto the crankcase. The oil separator 2 is then fastened to the crankcase 1 by means of screws and the openings 19. Housing 3 and insert 5 are lightweight and inexpensive to manufacture from plastic for large series production. With increased mechanical loads, the housing 3 can be produced as an aluminum casting.
  • the oil separator 2 is pressurized with vacuum to flush the crankcase via a hose attached to the connector 16. This negative pressure conveys the gases through a hole in the crankcase through the gap 9 to the nozzle 16.
  • the gases enriched with oil droplets cannot get from the gap 9 to the nozzle 16 by the shortest route, but rather along the delay lines 10, 11 led through room 8.
  • the droplets which are deposited along the outer surface 6, the inner wall 7 and on the walls 14, 17 are collected by gravitation in the oil collecting areas 12, 13 and passed back into the crankcase 1 via the openings 26. A large part of the oil droplets is deposited on the wall 14. The rest of the mostly very fine oil droplets is deposited on the wall 17.

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

Claims (5)

  1. Séparateur d'huile pour les gaz provenant d'un carter de vilebrequin d'un moteur à combustion, comportant un carter en plusieurs parties et un insert placé à l'intérieur de celui-ci, dans lequel, entre une surface extérieure de l'insert et la paroi intérieure du carter sont formés un premier et, en aval de celui-ci, un second parcours de ralentissement, qui ont tous deux pratiquement une forme de demi-cercle et présentent chacun respectivement une première et une seconde zone de collecte d'huile, situées en aval, caractérisé en ce que le carter (3) est maintenu contre le carter de vilebrequin (1) avec un côté d'ouverture tourné vers celui-ci et le carter (3) possède, sur ce côté d'ouverture, une bride (18) périphérique, dirigée vers l'extérieur, qui présente, sur sa face inférieure (21), une rainure (28) à laquelle est associé, à proximité, un évidement (22) périphérique, ouvert vers la paroi intérieure (7) bride dans laquelle est placée une partie saillante (23), dirigée vers l'extérieur, de l'insert (5) et en ce que les parcours de ralentissement (10, 11) sont en partie séparés l'un de l'autre par une paroi (14) transversale du carter (3).
  2. Séparateur d'huile selon la revendication 1, caractérisé en ce que l'insert (5) présente, à proximité de la première et de la seconde zone de collecte d'huile (12, 13), des enfoncements (24) qui comprennent des parties bombées (20) correspondantes du carter (3).
  3. Séparateur d'huile selon la revendication 2, caractérisé en ce qu'à la paroi (14) sont associés des orifices d'évacuation (26), placés en vis-à-vis dans la première zone de collecte d'huile (12) et en ce qu'au-dessus de la seconde zone de collecte d'huile (13) il est prévu une seconde paroi (17) qui pénètre partiellement dans une tubulure d'évacuation (16) du carter (3).
  4. Séparateur d'huile selon la revendication 3, caractérisé en ce qu'au-dessus de la seconde zone de collecte d'huile (13) il est prévu une seconde paroi (17) qui pénètre partiellement dans une tubulure d'évacuation (16) du carter (3).
  5. Séparateur d'huile selon la revendication 2, caractérisé en ce que les deux zones de collecte d'huile (12 et 13) sont pourvues d'orifices d'évacuation (26), une zone (12) comprenant des parois de délimitation (25) latérales et l'autre zone (13) une paroi de délimitation (27) adaptée à la paroi intérieure (7).
EP90120042A 1990-01-03 1990-10-19 Séparateur d'huile pour le gaz d'un carter d'un moteur à combustion interne Expired - Lifetime EP0436079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4000060A DE4000060C1 (fr) 1990-01-03 1990-01-03
DE4000060 1990-01-03

Publications (2)

Publication Number Publication Date
EP0436079A1 EP0436079A1 (fr) 1991-07-10
EP0436079B1 true EP0436079B1 (fr) 1993-09-22

Family

ID=6397577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120042A Expired - Lifetime EP0436079B1 (fr) 1990-01-03 1990-10-19 Séparateur d'huile pour le gaz d'un carter d'un moteur à combustion interne

Country Status (4)

Country Link
US (1) US5063882A (fr)
EP (1) EP0436079B1 (fr)
DE (2) DE4000060C1 (fr)
ES (1) ES2045714T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129371A (en) * 1991-09-03 1992-07-14 Saturn Corporation Cam cover oil separator for crankcase ventilation
US5474035A (en) * 1994-07-08 1995-12-12 Outboard Marine Corporation Engine breather construction
US5542402A (en) * 1995-04-05 1996-08-06 Ford Motor Company Positive crankcase ventilation system with a centrifugal oil separator
GB2317203B (en) * 1996-09-13 2000-03-08 Glacier Metal Co Ltd I C engine crankcase breather assembly
JP3866394B2 (ja) * 1997-10-22 2007-01-10 本田技研工業株式会社 エンジンのブリーザ装置
JP4441069B2 (ja) * 2000-06-19 2010-03-31 本田技研工業株式会社 エンジンにおけるブリーザ構造
US8051844B2 (en) * 2008-09-03 2011-11-08 George Clark Apparatus for treating crankcase gases from engines
CN110043345B (zh) 2014-01-14 2021-04-06 康明斯过滤Ip公司 曲轴箱通风系统加热器
DE102016208248B3 (de) * 2016-05-13 2017-06-14 Bayerische Motoren Werke Aktiengesellschaft Ölabscheider zur Abscheidung von Öl aus Aerosol in einem Verbrennungsmotor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849994A (en) * 1956-05-29 1958-09-02 Ray C Barker Excess breather oil recovery system
JPS60159497A (ja) * 1984-01-30 1985-08-20 トヨタ自動車株式会社 エンジンのシリンダヘッドカバ−
JPH0674727B2 (ja) * 1984-02-02 1994-09-21 トヨタ自動車株式会社 ブロ−バイガスのオイル分離装置
JPS6218314U (fr) * 1985-07-19 1987-02-03
DE3625836A1 (de) * 1986-07-30 1988-02-11 Audi Ag Vorrichtung zur entlueftung des kurbelraumes einer brennkraftmaschine
DE3713210A1 (de) * 1987-04-18 1988-11-03 Porsche Ag Entlueftungsvorrichtung mit integriertem oelabscheider

Also Published As

Publication number Publication date
US5063882A (en) 1991-11-12
ES2045714T3 (es) 1994-01-16
DE59002842D1 (de) 1993-10-28
DE4000060C1 (fr) 1991-02-21
EP0436079A1 (fr) 1991-07-10

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