EP1611321A2 - Dispositif pour separer des fluides de differente densite - Google Patents

Dispositif pour separer des fluides de differente densite

Info

Publication number
EP1611321A2
EP1611321A2 EP04724610A EP04724610A EP1611321A2 EP 1611321 A2 EP1611321 A2 EP 1611321A2 EP 04724610 A EP04724610 A EP 04724610A EP 04724610 A EP04724610 A EP 04724610A EP 1611321 A2 EP1611321 A2 EP 1611321A2
Authority
EP
European Patent Office
Prior art keywords
conduit
filtering means
valve member
mixture
fluid
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.)
Withdrawn
Application number
EP04724610A
Other languages
German (de)
English (en)
Inventor
Giorgio Girondi
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.)
UFI Filters SpA
Original Assignee
UFI Filters 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 UFI Filters SpA filed Critical UFI Filters SpA
Publication of EP1611321A2 publication Critical patent/EP1611321A2/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F01M2013/0038—Layout of crankcase breathing systems
    • F01M2013/005—Layout of crankcase breathing systems having one or more deoilers
    • F01M2013/0055—Layout of crankcase breathing systems having one or more deoilers with a by-pass
    • 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
    • F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter

Definitions

  • TECHNICAL FIELD This invention relates in general to a device for separating fluids of different density.
  • Burnt gases are known to return to the lower chambers of internal combustion engine cylinders because of seepage past the piston rings or because of imperfect connections. These gases are generally fed to the engine intake manifold, which then feeds them to the cylinders for combustion via a suitable conduit.
  • Separator devices which separate said burnt gases from the oil particles which they entrain when coming into contact with the oil in the engine oil sump.
  • the known devices comprise a casing provided with an entry conduit for the gas and oil mixture and an exit conduit for the gas, a separator, for example of the coalescence type comprising a filtering baffle, being interposed between said entry and exit conduits.
  • the filtering baffle substantially divides the interior of the device into two separate chambers.
  • a conduit is present in the upstream chamber for discharging the oil which separates from the mixture and collects by gravity on the bottom of the upstream chamber.
  • the object of the present invention is to overcome the drawbacks of the known art within the framework of a simple, rational and low-cost solution.
  • the invention attains said object by virtue of the characteristics defined in the claims.
  • a separator device comprising an outer casing provided with an entry conduit for a mixture of fluids of different density, and an exit conduit for the fluid of lesser density, said conduits being separated by a filtering means which defines an upstream chamber to which said entry conduit leads, and a downstream chamber from which said exit conduit leaves, a valve member being provided which when opened connects said chambers together, a conduit for discharging the fluid of greater density being associated with one of said chambers.
  • said valve member is positioned in proximity to the bottom of said casing where the fluid of greater density collects.
  • the valve member comprises a umbrella valve which is opened by the pressure exerted on it by the fluid of greater density which has collected on the bottom of said casing.
  • the conduit for discharging the fluid of greater density is positioned in the chamber to which said mixture entry conduit also leads.
  • valve member can be associated either with the filtering means or with the outer casing of the separator device.
  • said filtering means can be of coalescence, labyrinth, cyclone or centrifugal type.
  • Figure 1 is a section through the device of the invention.
  • Figure 2 is an enlarged view of a detail of the invention.
  • FIG. 1 shows the device 1 , which in the illustrated embodiment is used to separate a mixture of engine burnt gases and oil and is hence intended to be inserted into the circuit which connects the burnt gas and oil mixture discharge to the engine fuel intake manifold (not shown).
  • the device 1 comprises an outer casing 2 having an entry conduit 3 through which said burnt gas and oil mixture enters the device, and an exit conduit 4 through which the burnt gases alone leave.
  • the filtering means 5 separates the casing interior into two separate chambers, namely a chamber 6 upstream of the filtering means, to which said entry conduit 3 leads, and a chamber 7 downstream of the filtering means 5, from which said exit conduit 4 leaves.
  • the filtering means 5 is provided with two endpieces 50 and 51 by which it is fitted to the casing 2.
  • a valve member 9 ( Figure 2) comprising a umbrella valve 10 which opens by the pressure which the oil collected on the bottom of the chamber 7 exerts on the annular wall 100 of the valve 10 by way of the holes 11 present in the endpiece 51.
  • oil separated by the filtering means collects on the bottom of the chamber 6, whereas the oil which falls onto the bottom of the chamber 7 is discharged through the conduit 8.
  • the pressure which it exerts on the valve 10 is such that the valve opens and by passing through the holes 11 the oil flows from the chamber 7 to the chamber 6, and from there is discharged through the discharge conduit 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un dispositif pour séparer les fluides de différente densité formant un mélange, lequel comprend une enveloppe extérieure pourvue d'un conduit d'entrée par lequel passe ledit mélange de fluide et d'un conduit de sortie par lequel passe le fluide présentant la plus faible densité, lesdits conduits étant séparés par un moyen de filtration qui définit une chambre amont, à laquelle arrive ledit conduit d'entrée, et une chambre aval, d'où part ledit conduit de sortie, un conduit servant à l'évacuation du fluide présentant la plus grande densité étant associé à l'une desdites chambres et lesdites chambres étant mutuellement reliées par une vanne.
EP04724610A 2003-04-09 2004-03-31 Dispositif pour separer des fluides de differente densite Withdrawn EP1611321A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000035A ITRE20030035A1 (it) 2003-04-09 2003-04-09 "dispositivo separatore di fluidi di diversa densita'"
PCT/EP2004/003659 WO2004090292A2 (fr) 2003-04-09 2004-03-31 Dispositif pour separer des fluides de differente densite

Publications (1)

Publication Number Publication Date
EP1611321A2 true EP1611321A2 (fr) 2006-01-04

Family

ID=29267152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04724610A Withdrawn EP1611321A2 (fr) 2003-04-09 2004-03-31 Dispositif pour separer des fluides de differente densite

Country Status (3)

Country Link
EP (1) EP1611321A2 (fr)
IT (1) ITRE20030035A1 (fr)
WO (1) WO2004090292A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007008672A1 (de) * 2007-02-20 2008-09-04 Dichtungstechnik G. Bruss Gmbh & Co. Kg Zylinderkopfhaube für einen Verbrennungsmotor
US10247068B2 (en) 2013-06-25 2019-04-02 BRUSS Sealing Systems GmbH Oil separating module in the crankcase ventilation system of a combustion engine
DE102013212104B4 (de) 2013-06-25 2021-06-10 BRUSS Sealing Systems GmbH Zylinderkopfhaube mit Rückschlagventil für einen Ölrücklauf in der Kurbelgehäuseentlüftung eines Verbrennungsmotors
EP2937533B1 (fr) 2014-04-24 2017-12-20 BRUSS Sealing Systems GmbH Module de purge pour un moteur à combustion
WO2015180767A1 (fr) * 2014-05-28 2015-12-03 Toyota Motor Europe Nv/Sa Système de retour de liquide pour moteur à combustion interne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602595A (en) * 1984-03-01 1986-07-29 Aisin Seiki Kabushiki Kaisha Oil separator for internal combustion engine
IT1285384B1 (it) * 1996-05-31 1998-06-03 Pall Corp Dispositivo depuratore per un circuito di sfiato di un basamento di un motore endotermico, e circuito di sfiato provvisto di tale dispositivo
DE20009605U1 (de) * 2000-05-30 2001-10-18 Hengst Walter Gmbh & Co Kg Vorrichtung zur Entölung von Kurbelgehäuse-Entlüftungsgasen einer Brennkraftmaschine
US6354283B1 (en) * 2000-08-29 2002-03-12 Fleetguard, Inc. Diesel engine modular crankcase ventilation filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004090292A3 *

Also Published As

Publication number Publication date
ITRE20030035A1 (it) 2004-10-10
WO2004090292A2 (fr) 2004-10-21
WO2004090292A3 (fr) 2005-04-21
ITRE20030035A0 (it) 2003-04-09

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