EP0254816A2 - Ventilation du carter de vilebrequin dans des véhicules - Google Patents

Ventilation du carter de vilebrequin dans des véhicules Download PDF

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Publication number
EP0254816A2
EP0254816A2 EP87105943A EP87105943A EP0254816A2 EP 0254816 A2 EP0254816 A2 EP 0254816A2 EP 87105943 A EP87105943 A EP 87105943A EP 87105943 A EP87105943 A EP 87105943A EP 0254816 A2 EP0254816 A2 EP 0254816A2
Authority
EP
European Patent Office
Prior art keywords
ventilation system
crankcase
channel
crankcase ventilation
safety
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
EP87105943A
Other languages
German (de)
English (en)
Other versions
EP0254816B1 (fr
EP0254816A3 (en
Inventor
Karl Dipl.-Ing. Langlois
Manfred Dipl.-Ing. Batzill
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 EP0254816A2 publication Critical patent/EP0254816A2/fr
Publication of EP0254816A3 publication Critical patent/EP0254816A3/de
Application granted granted Critical
Publication of EP0254816B1 publication Critical patent/EP0254816B1/fr
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
    • 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
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/025—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction with an inlet-conduit via an air-filter
    • 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
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/006—Camshaft or pushrod housings

Definitions

  • the invention relates to a crankcase ventilation system for motor vehicles, in which the crankcase gases of a main ventilation system or an S icherheitsentl marsungssystem from the cylinder crankcase into an intake system of an internal combustion engine can be returned, said connecting pieces are arranged at an air duct housing of the intake system, are connected to the lines of the main ventilation system and the safety vent system .
  • crankcase ventilation Service Information 1985, Porsche 928 S, USA, pages 30 and 31
  • two spaced-apart connecting pieces are provided on the air duct housing of the intake system, one connecting piece with the line of the main ventilation system and the other connecting piece is connected to the line of the safety ventilation system.
  • This crankcase ventilation has a good function, but the air duct housing with the two connecting pieces is complex to construct.
  • the two connectors on the air duct housing take up a considerable amount of space, so that the space constraints, which are in any case restricted in the area of the suction system of a 4-valve b b gate, are additionally restricted.
  • the object of the invention is to take such precautions on a crankcase ventilation that the connection between the lines of the two systems and the air duct housing is simplified in construction and also takes up little space.
  • the main advantages achieved with the invention are that the arrangement of only one connector for the lines of both systems creates a simple, space-saving connection between the lines and the air duct housing.
  • the separate channels within the connecting piece for the two systems and the staggered outlet openings ensure that the crankcase ventilation functions properly. If the outlet opening of the main ventilation system is blocked, for example by icing, the safety ventilation system with the outlet opening protruding in sections into the interior of the air duct housing takes over the crankcase ventilation until the overgrown connection of the main ventilation system in the air duct housing has become permeable again after the engine operating temperature or a sufficient engine compartment temperature has been reached .
  • the connector can be produced easily and inexpensively.
  • the snap-in connection between the connecting piece and the socket of the air duct housing ensures quick and easy assembly of the connecting piece.
  • a multi-cylinder internal combustion engine 1 for a motor vehicle comprises a cylinder head 2 and a cylinder crankcase 3.
  • a crankcase ventilation 5 is provided, which is composed of a main ventilation system 6 and a safety ventilation system 7.
  • crankcase gases pass from the cylinder crankcase 3 into an oil filler neck 8. Then they pass a line 9, which is connected via an angled connection 10 to a cylinder head cover 11 and penetrates it.
  • An oil separator (not shown in detail) is provided within the cylinder head cover 11 between the two middle cylinders is arranged.
  • a throttle is inserted within the angle connection 12.
  • a common connecting piece 14 with connecting pieces 18, 19 for the lines 13, 17 of the two systems 6, 7 (main ventilation system and safety ventilation system) is provided on the air guide housing 15, channels 20 separated from the two connecting pieces 18, 19 , 21 are guided away and extend to outlet openings 22, 23 arranged at a distance.
  • the two connecting pieces 18, 19 run at an angle to one another.
  • the outlet openings 22, 23 of the two channels 20, 21 run in the flow direction B, at a distance A from one another, and open into the air duct housing 15.
  • Of a rectilinear form of the course of the channel 21 having developerentlmediaun g s- Valve 7 runs in continuation of the connecting piece 19 and, with its free end containing the inlet opening 23, projects in sections into the interior 24 of the air guide housing 15.
  • the connecting piece 18 of the main ventilation system 6 runs at an angle to the adjoining duct 20, the side 26 of the duct 20 opposite the outlet opening 22 being designed to be closed.
  • the outlet opening 22 of the main ventilation system 6 is seen in the direction of flow B, arranged in front of the outlet opening 23 of the safety ventilation system 7, in such a way that the outlet opening 22 of the main ventilation system 6 extends in the region of a connecting piece 27 of the air guide housing 15.
  • the outlet opening 23 of the safety ventilation system 7 runs approximately parallel to an inner boundary wall 28 of the air guide housing 15.
  • the approximately Y-shaped connecting piece 14 is inserted into the molded connection piece 27 of the air guide housing 15 and connects to it via a snap-in connection 29.
  • the latching connection 29 comprises groove-shaped projections 30 on the connecting piece 14 which engage in corresponding recesses 31 in the connecting piece 27.
  • the air guide housing 15 is formed by a nozzle-shaped air guide scoop 32, which is arranged between an air mass meter and a throttle valve connector, namely below a throttle valve, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP87105943A 1986-07-26 1987-04-23 Ventilation du carter de vilebrequin dans des véhicules Expired - Lifetime EP0254816B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3625376A DE3625376C1 (de) 1986-07-26 1986-07-26 Kurbelgehaeuseentlueftung fuer Kraftfahrzeuge
DE3625376 1986-07-26

Publications (3)

Publication Number Publication Date
EP0254816A2 true EP0254816A2 (fr) 1988-02-03
EP0254816A3 EP0254816A3 (en) 1989-01-11
EP0254816B1 EP0254816B1 (fr) 1990-10-03

Family

ID=6306074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105943A Expired - Lifetime EP0254816B1 (fr) 1986-07-26 1987-04-23 Ventilation du carter de vilebrequin dans des véhicules

Country Status (4)

Country Link
US (1) US4753214A (fr)
EP (1) EP0254816B1 (fr)
JP (1) JPS6341613A (fr)
DE (2) DE3625376C1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821528C1 (fr) * 1988-06-25 1989-09-07 Bayerische Motoren Werke Ag, 8000 Muenchen, De
US5140968A (en) * 1992-02-14 1992-08-25 Navistar International Transportation Corp. Closed loop breather system for engine crankcase
IT232314Y1 (it) * 1994-01-20 1999-12-17 Cornaglia G Off Met Spa Condotto di sfiato per vapori combustibili, in particolare di olio lubrificante, in un motore endotermico.
DE19645665A1 (de) * 1996-11-06 1998-05-07 Mann & Hummel Filter Ventileinheit
DE19717040C1 (de) * 1997-04-23 1998-11-26 Mannesmann Vdo Ag Entlüftungsvorrichtung in einer zu einer Saugrohranordnung einer Brennkraftmaschine hinführenden Entlüftungsleitung
DE10136463B4 (de) * 2001-07-26 2010-04-15 Man Nutzfahrzeuge Ag Kurbelgehäuseentlüftung
JP4059130B2 (ja) * 2003-04-15 2008-03-12 日産自動車株式会社 内燃機関のブローバイガス還流装置
DE102004043545A1 (de) * 2004-09-09 2006-03-30 Audi Ag Kurbelgehäuseentlüftungseinrichtung für eine Brennkraftmaschine eines Kraftfahrzeuges
US7431023B2 (en) * 2007-01-23 2008-10-07 Gm Global Technology Operations, Inc. Engine PCV system with venturi nozzle for flow regulation
JP4748152B2 (ja) * 2007-12-27 2011-08-17 トヨタ自動車株式会社 内燃機関の吸気管構造
JP4466754B2 (ja) * 2008-03-18 2010-05-26 トヨタ自動車株式会社 内燃機関の電子制御式ブローバイガス還元装置
DE102010013422A1 (de) * 2010-03-30 2011-10-06 Mahle International Gmbh Kupplungseinrichtung, Kurbelgehäuseentlüftungseinrichtung und Frischluftanlage
JP6225885B2 (ja) * 2014-11-14 2017-11-08 マツダ株式会社 ブローバイガス還流装置
FR3069277A1 (fr) * 2017-07-19 2019-01-25 Psa Automobiles Sa Moteur thermique comprenant un circuit interne de limitation de pression des gaz de carter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2128154A (en) * 1937-01-11 1938-08-23 Raymond H Masters Internal combustion engine
US2311036A (en) * 1940-05-27 1943-02-16 Dick Wills Engine breather and ventilating system
US3059628A (en) * 1960-12-13 1962-10-23 William J Linn Gas and fume disposal system for internal combustion engines
US3077871A (en) * 1962-03-19 1963-02-19 Richfield Oil Corp Crankcase ventilating system for internal combustion engines
US3362386A (en) * 1965-05-17 1968-01-09 Mcmahon Binder & Huron Internal-combustion engine
US3381673A (en) * 1965-11-22 1968-05-07 Drysdale William Robert Crankcase ventilation system
US3372685A (en) * 1966-12-05 1968-03-12 Ardell T. Bestland Excessive crankcase pressure warning system and relief valve
US4011846A (en) * 1975-03-24 1977-03-15 Did-Mor Engineering And Manufacturing Co. Anti-pollution device
DE3627376C2 (de) * 1986-08-12 1995-09-21 Unilever Nv Gebinde aus mehreren Einzelpackungen und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
DE3765340D1 (de) 1990-11-08
DE3625376C1 (de) 1987-10-29
JPS6341613A (ja) 1988-02-22
EP0254816B1 (fr) 1990-10-03
EP0254816A3 (en) 1989-01-11
US4753214A (en) 1988-06-28

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