EP1398468A1 - Druckentlastungvorrichtung für Brennkraftmaschine, insbesondere für ein Kraftfahrzeug - Google Patents

Druckentlastungvorrichtung für Brennkraftmaschine, insbesondere für ein Kraftfahrzeug Download PDF

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Publication number
EP1398468A1
EP1398468A1 EP03292247A EP03292247A EP1398468A1 EP 1398468 A1 EP1398468 A1 EP 1398468A1 EP 03292247 A EP03292247 A EP 03292247A EP 03292247 A EP03292247 A EP 03292247A EP 1398468 A1 EP1398468 A1 EP 1398468A1
Authority
EP
European Patent Office
Prior art keywords
cover
plug
vacuum
cylinder head
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.)
Granted
Application number
EP03292247A
Other languages
English (en)
French (fr)
Other versions
EP1398468B1 (de
Inventor
Martial Dore
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1398468A1 publication Critical patent/EP1398468A1/de
Application granted granted Critical
Publication of EP1398468B1 publication Critical patent/EP1398468B1/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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • 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
    • F01M13/0405—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in covering members apertures, e.g. caps

Definitions

  • the present invention relates to a vacuum limiter device for internal combustion engine, in particular of a motor vehicle.
  • It relates more particularly to a device for limiting vacuum for internal combustion engine to reduce its size on a cover of the engine cylinder head.
  • turbo-compressed internal combustion engines or supercharged require arrangement in the gas re-suction circuit of the housing, generally designated by the English term “blowby", of a depression to eliminate any risk of re-aspiration of the oil in the air intake ducts.
  • Such a vacuum limiter is generally arranged on one of the cylinder head covers near the oil filler cap and nozzle for recycling crankcase gases.
  • the object of the invention is to propose a vacuum limiter device for internal combustion engine which can remedy the mentioned drawback above.
  • the present invention relates to a device for limiting vacuum for internal combustion engine, especially of a vehicle automobile arranged on a cylinder head cover and comprising a membrane mobile deformable under the action of the vacuum prevailing in the casing of the engine to prevent re-suction of oil at the intake in case of strong vacuum, the cover being further provided with an opening allowing the introduction of oil into the crankcase which is intended to be blocked by a plug generally designated as an "oil filling plug", characterized in that the movable deformable membrane of the vacuum limiter is attached to the removable oil filler cap and cooperates when the cap is arranged on the cover with a movable part which is arranged in said cylinder head cover and capable of obstructing a discharge channel for gas produced on the cover as a function of the displacements of the membrane flexible deformable.
  • the channel gas evacuation is carried out foundry with the cylinder head cover.
  • the evacuation channel protrudes to the right of the cylinder head orifice and is constituted a first and a second conduit parallel to each other set up communication via a hole perpendicular to said conduits further ensuring the housing of the moving part which has the general shape a U whose free ends of the branches are folded down to ensure a abutment of said part when the plug is removed from the cover and in that this moving part is provided on its branches with orifices arranged so as to allow, depending on its displacement, the communication of two conduits or the obturation of the first conduit.
  • the moving part is also provided with a return spring arranged inside thereof which is supported by one of its ends on the bottom of the piece and by its opposite end on the face of a hole closure plug.
  • FIGs 1 to 3 There is shown in Figures 1 to 3, a cylinder head cover 1 of a internal combustion engine.
  • This cover 1 is provided in a conventional manner an opening 2 allowing the introduction of oil into the crankcase of the engine which is intended to be obstructed by a plug 3 generally designated "plug filling with oil ”.
  • This cover 1 is also provided with a device for vacuum limiter conventionally constituted by a flexible membrane 4 mobile deformable under the action of the vacuum prevailing in the casing of the engine to prevent re-suction of oil at the intake in case of strong depression.
  • the movable membrane 4 of the limiter vacuum is attached to the removable oil filling plug 3 and cooperates when the plug 3 is arranged on the cover 1 with a moving part 5 which is arranged in said cylinder head cover and able to obstruct a channel gas evacuation carried out on the cover.
  • this movable part 5 in particular under the action of the membrane 4 is able to be recalled to its inactive position, that is to say free passage of gases through the discharge channel by through a spring 6 arranged for example coaxially inside the moving part 5 as explained in more detail below.
  • the gas evacuation channel is made of foundry with the cover 1 of the breech. This channel is protruding to the right of the orifice 2 of the cylinder head and is consisting for example of a first 7 and a second 8 leads parallel one to the other and put in communication via a hole 9 perpendicular to said conduits 7 and 8, as illustrated in Figures 1 to 3.
  • This hole 9 also provides housing for the moving part 5 having the general shape of a U whose free ends of the branches are folded down in order to ensure a stop for said part when the plug 3 is removed from the lid.
  • This part 5 is provided on its branches with orifices 10 arranged so as to allow, depending on its displacement, either setting communication of the two conduits 7 and 8, i.e. the closure of the first conduit 7.
  • the moving part 5 is also provided, as described more top, a return spring 6 arranged for example inside thereof which is supported by one of its ends on the bottom of the part 5 and by its opposite end on the face of a closure plug 11 of the bore 9.
  • the device for vacuum limiter is relatively simple to perform and reduces considerably its size on a cylinder head cover by grouping two distinct functions namely vacuum limiter and stopper filling with oil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Supercharger (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Motor Or Generator Frames (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP03292247A 2002-09-16 2003-09-12 Druckentlastungvorrichtung für Brennkraftmaschine, insbesondere für ein Kraftfahrzeug Expired - Lifetime EP1398468B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0211410 2002-09-16
FR0211410A FR2844547B1 (fr) 2002-09-16 2002-09-16 Dispositif de limiteur de depression pour moteur a combustion interne, notamment d'un vehicule automobile

Publications (2)

Publication Number Publication Date
EP1398468A1 true EP1398468A1 (de) 2004-03-17
EP1398468B1 EP1398468B1 (de) 2007-07-04

Family

ID=31726057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292247A Expired - Lifetime EP1398468B1 (de) 2002-09-16 2003-09-12 Druckentlastungvorrichtung für Brennkraftmaschine, insbesondere für ein Kraftfahrzeug

Country Status (4)

Country Link
EP (1) EP1398468B1 (de)
AT (1) ATE366353T1 (de)
DE (1) DE60314698T2 (de)
FR (1) FR2844547B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2892763A1 (fr) * 2005-10-28 2007-05-04 Mark Iv Systemes Moteurs Soc P Module de deshuilage et dispositif de bouchon pour un tel module
EP2236781A1 (de) * 2009-03-12 2010-10-06 Polytec Automotive GmbH & Co. KG Druckregelventil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106593B4 (de) 2010-07-06 2022-01-13 BRUSS Sealing Systems GmbH Gehäuse für einen Verbrennungsmotor und ein an dem Gehäuse befestigtes PCV-Ventil zur Kurbelgehäuseentlüftung, und Verfahren zum Befestigen eines PCV-Ventils an einem Gehäuse
CN114151221B (zh) * 2021-12-07 2023-08-08 青岛再特模具有限公司 一种发动机缸盖罩盖内置pcv阀的集成压装结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090393A (en) * 1990-07-11 1992-02-25 Filterwerk Mann & Hummel Gmbh Pressure regulating valve for installation in a vent duct of an internal combustion engine
DE4136894C1 (en) * 1991-11-09 1992-11-26 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Crankcase gas extractor for vehicle IC-engine - has two working volumes separated by domed membrane with stiffened base
US5335641A (en) * 1992-04-18 1994-08-09 Filterwerk Mann & Hummel Gmbh Oil filler for an internal combustion engine
GB2288452A (en) * 1994-03-28 1995-10-18 Knecht Filterwerke Gmbh Ventilation valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090393A (en) * 1990-07-11 1992-02-25 Filterwerk Mann & Hummel Gmbh Pressure regulating valve for installation in a vent duct of an internal combustion engine
DE4136894C1 (en) * 1991-11-09 1992-11-26 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Crankcase gas extractor for vehicle IC-engine - has two working volumes separated by domed membrane with stiffened base
US5335641A (en) * 1992-04-18 1994-08-09 Filterwerk Mann & Hummel Gmbh Oil filler for an internal combustion engine
GB2288452A (en) * 1994-03-28 1995-10-18 Knecht Filterwerke Gmbh Ventilation valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2892763A1 (fr) * 2005-10-28 2007-05-04 Mark Iv Systemes Moteurs Soc P Module de deshuilage et dispositif de bouchon pour un tel module
EP2236781A1 (de) * 2009-03-12 2010-10-06 Polytec Automotive GmbH & Co. KG Druckregelventil

Also Published As

Publication number Publication date
ATE366353T1 (de) 2007-07-15
DE60314698T2 (de) 2008-06-05
FR2844547B1 (fr) 2004-10-22
EP1398468B1 (de) 2007-07-04
FR2844547A1 (fr) 2004-03-19
DE60314698D1 (de) 2007-08-16

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