EP1555399A2 - Séparateur de liquide dans un gaz - Google Patents

Séparateur de liquide dans un gaz Download PDF

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Publication number
EP1555399A2
EP1555399A2 EP04106150A EP04106150A EP1555399A2 EP 1555399 A2 EP1555399 A2 EP 1555399A2 EP 04106150 A EP04106150 A EP 04106150A EP 04106150 A EP04106150 A EP 04106150A EP 1555399 A2 EP1555399 A2 EP 1555399A2
Authority
EP
European Patent Office
Prior art keywords
cyclone
gas
degrees
cyclones
crankcase
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Withdrawn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
EP04106150A
Other languages
German (de)
English (en)
Other versions
EP1555399A3 (fr
Inventor
Dietmar Uhlenbrock
Bernd Altvater
Michael Botschka
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1555399A2 publication Critical patent/EP1555399A2/fr
Publication of EP1555399A3 publication Critical patent/EP1555399A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F01M2013/0038—Layout of crankcase breathing systems
    • F01M2013/0044—Layout of crankcase breathing systems with one or more valves
    • 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
    • F01M2013/0061—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers
    • F01M2013/0066—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers in parallel
    • 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
    • F01M2013/0422—Separating oil and gas with a centrifuge device
    • F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
    • 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
    • F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase

Definitions

  • the invention relates to a device for the separation of liquid from a gas stream according to the preamble of the main claim. It is already a device for the separation of liquid from a gas stream known from DE 299 08 116 U1, which has cyclones as separation elements, the cyclones each having an inlet section and a conical section, wherein a tangentially opening into the inlet section input channel, an axially in the inlet section or gas outlet channel opening into the conical section and a liquid outlet opening into the conical section at a tapered end of the conical section are provided.
  • the cyclones are arranged with their axis perpendicular to a connection surface for arrangement of the device on the internal combustion engine.
  • Such devices are often integrated in the cylinder head cover and are used for crankcase ventilation, with little space between a bonnet of the vehicle and the cylinder head cover is provided by the vertical arrangement of the cyclones. This is particularly needed for recent developments to improve the impact protection for pedestrians or for more design freedom in the design.
  • the device according to the invention with the characterizing Features of the main claim has the advantage over that in a simple way an improvement to that effect achieved that the overall height of the device in the direction a bonnet is reduced by the symmetry axis the at least one cyclone opposite the pad at an angle not equal to 90 degrees.
  • the symmetry axis of the at least one cyclone runs in an angle range between 0 degrees and 70 degrees the pad or between 0 degrees and minus 70 degrees with respect to the pad.
  • the at least one cyclone in a cylinder head cover is arranged, as this is a allows particularly compact arrangement of the device.
  • the at least one cyclone upstream of a pre-separator and / or downstream of a pressure control valve.
  • the at least one Liquid outlet of the at least one cyclone over a Flow channel is fluidly connected to the crankcase, wherein the drainage channel via a check valve or a Siphon opens into the crankcase.
  • the drawing shows a device according to the invention for the separation of liquid from a gas stream.
  • the device according to the invention is preferably used for separating liquids, in particular oil, from a gas stream, so it can generally be used for separating drops of liquids from flowing gases.
  • the device according to the invention is preferably used in a crankcase ventilation of an internal combustion engine.
  • blow-by gas During operation of an internal combustion engine flows due to a small leakage between piston, piston rings and cylinder surfaces a so-called blow-by gas or Blow-by gas from a combustion chamber into a Crankcase.
  • blowby gas is hereafter only still commonly used the term gas.
  • the gas supplied to the intake manifold has an oil mist many small and big drops of oil on it high flow rate into the crankcase inflowing gas and through the moving parts in the Crankcase is created.
  • the oil drops of the oil mist must prior to introduction into the suction tube by means of the device for separating liquid from the gas stream are deposited to avoid high oil loss and not to negatively influence the combustion.
  • In the device according to the invention is at least one Cyclone 1 provided in a known manner a Inlet section 2 and a cone section 3 has.
  • Cone portion 3 is, for example, adjacent to the Inlet section 2, wherein the inlet section 2 and the Conical section 3, for example, concentric with respect to a Symmetryeachse 4 of the cyclone 1 are arranged.
  • Inlet section 2 is cylindrical, for example, and the Conical section 3 conical.
  • the at least one cyclone 1 has one each Input channel 5, a gas outlet channel 8, also called Dip tube is called, and a liquid outlet. 9 on.
  • the input channel 5 opens tangentially in the Inlet section 2 of the cyclone 1.
  • the gas outlet channel 8 is at the inlet section 2 facing end face of Cyclone 1, for example, concentric to the axis of symmetry 4, arranged and opens axially with respect to the axis of symmetry 4 in the inlet section 2 or in the cone section.
  • the liquid outlet 9 is at a tapered end of the Cone portion 3 with the cone portion 3 in conjunction.
  • the at least one cyclone 1 takes place in a known manner the separation of the liquid from the gas stream.
  • the Gas flow of the crankcase ventilation passes through the Input channel 5 in the inlet section 2 of the cyclone 1.
  • the Flow in the cyclone 1 is through the tangential Inflow is set in rotation and flows in as Outer vortex helically on a Zyklonwandung 10 of Inlet section 2 and the conical section 3 of the cyclone first along towards the liquid outlet 9.
  • Near the Liquid flow 9 changes the flow direction and flows in as an internal vortex in the center of the external vortex Direction of the gas outlet channel 8 back and leaves the Cyclone 1 via the gas outlet channel 8.
  • the device according to the invention has, for example several parallel cyclones 1, which in one Housing 12 are arranged and of which, however, only one in the drawing is exemplified.
  • the housing 12 may be, for example, a cylinder head cover 13.
  • the Housing 12 has, for example, a pad 11 for Arrangement of the device on an internal combustion engine 6.
  • the pad 11 is as the main extension plane with defines a main direction of extension, so that steps, Heels, recesses or vaults not to Pad 11 are to be counted and thus a unique Reference level is formed.
  • the housing 12 is for example with the pad 11 horizontally on a cylinder head.
  • the internal combustion engine 6 is arranged, wherein an annular circumferential seal 16 on the pad 11 between the Cylinder head cover 13 and the cylinder head 7 is provided and the device seals to the environment.
  • the housing 12 but can also obliquely with respect to the pad 11 the symmetry axis 4 may be arranged on the cylinder head 7, for example in an angular range from zero to plus / minus thirty degrees.
  • the at least one cyclone 1 is for example as complete item in the cylinder head cover 13th used. But the cyclones or 1 can also partially, for example, in half, at the Cylinder head cover 13 and the rest of the part, for example Half, at one with the cylinder head cover 13th be co-formed cooperating lid.
  • the device according to the invention has a height 14 in Direction of a hood 15 of a vehicle, the For example, measured in the direction of the hood 15 Height of the cylinder head cover 13 corresponds.
  • the at least one cyclone 1 according to the invention arranged such that the symmetry axis 4 of at least a cyclone 1 opposite the pad 11 under a Angle of unequal 90 degrees.
  • the at least one Cyclone 1 is after the assembly of the device to the Internal combustion engine 6 or elsewhere in one Engine compartment near the internal combustion engine 6 according to the invention oriented such that the axis of symmetry 4 of at least a cyclone 1 with respect to the horizontal under one Angle of unequal 90 degrees.
  • Below the horizontal is the earth's surface or the roadway of the vehicle too understand.
  • the Reduction of the overall height 14 of the invention Device increases the distance between the Cylinder head cover 13 and the hood 15 and improved thereby the impact protection for pedestrians. Besides, more is going on Freedom of design in the design of the vehicle allows.
  • the distance of the cylinder head cover 13 to the hood 15 should for impact protection up to one hundred millimeters to obtain a soft bonnet, which in Direction of a crankcase 19 can spring elastically.
  • the at least a cyclone 1 arranged such that the symmetry axis 4th of the cyclone 1 parallel to the pad 11 of Device and / or parallel to the horizontal is positioned.
  • the height 14 of the invention Device is according to this parallel version on the least.
  • the gas outlet channel 8 and the Liquid outlet 9 lie in a common Plane which is arranged parallel to the pad 11.
  • the housing 12 so obliquely on the cylinder head. 7 is arranged that the liquid outlet 9 below the Gas outlet channel 8 is the transport of the deposited liquid along the cyclone wall 10 in Direction of the liquid outlet 9 by gravity supported.
  • the at least one cyclone 1 can also be arranged in this way be that the axis 4 in an angular range between zero Degrees and seventy degrees with respect to the pad 11 and / or the horizontal or in an angular range between zero degrees and minus seventy degrees with respect to Pad 11 and / or the horizontal is arranged.
  • the device according to the invention has, in addition to the at least an inventively arranged cyclone 1, for example a cyclone 1 upstream pre-separator 17 and a the cyclone 1 downstream pressure control valve 18.
  • a cyclone 1 upstream pre-separator 17 for example a cyclone 1 upstream pre-separator 17 and a the cyclone 1 downstream pressure control valve 18.
  • the Vorabscheider 17 is for example a calming room, in the big drop, for example drops larger than twenty Micrometer, deposited.
  • the gas passes out of the crankcase 19 via a Connecting line 31 in the cylinder head 7.
  • vom Cylinder head 7 the gas flows over a Inlet opening 20 in the pre-separator 17 and downstream in the at least one cyclone 1.
  • the gas flow over a not illustrated distribution channel on the individual cyclones. 1 distributed, with the respective partial flow over the respective Input channel 5 is passed into the respective cyclone 1.
  • the oil drops in a known manner removed from the gas, with the separated oil drops in each case via the liquid outlet 9 in the crankcase 19 be returned.
  • the liquid transport in Direction liquid flow 9 does not take place as in the state the technique mainly by the gravity of the Liquid, but by the flow in the cyclone 1, the so-called potential vortex.
  • the gas outlet channels 8 of the individual cyclones 1 are downstream of the cyclone 1 with a common clean gas line 25 fluidly connected, in which the purified gas from the Cyclones 1 is collected and forwarded. That from the individual cyclones 1 via the gas outlet channels. 8 escaping, from oil drops purified gas passes through the Clean gas line 25, the pressure regulating valve 18 and a Vent line 28 in a suction pipe 29 of the Internal combustion engine, for example, in the intake manifold 29th downstream of a throttle valve 30.
  • a parallel connection of several cyclones 1 in the Device is the number of cyclones traversed by the gas 1, for example by means of a cyclone.
  • 1 upstream switching element adjustable wherein the Switching element the gas volume flow depending on the amount of the gas volume flow to one or more cyclones 1 passes.
  • the switching element switches in this way dependent from the amount of gas volume flow individual cyclones 1 to or at. This will make the cyclones 1 closer to the optimum Operating point operated as in the prior art.
  • there can the switching element by an actuator in dependence of Pressure in the crankcase 19 or due to the switching element be adjustable acting flow forces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP04106150A 2004-01-16 2004-11-29 Séparateur de liquide dans un gaz Withdrawn EP1555399A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002310 2004-01-16
DE200410002310 DE102004002310A1 (de) 2004-01-16 2004-01-16 Vorrichtung zur Abscheidung von Flüssigkeit aus einem Gasstrom

Publications (2)

Publication Number Publication Date
EP1555399A2 true EP1555399A2 (fr) 2005-07-20
EP1555399A3 EP1555399A3 (fr) 2009-11-25

Family

ID=34609583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04106150A Withdrawn EP1555399A3 (fr) 2004-01-16 2004-11-29 Séparateur de liquide dans un gaz

Country Status (2)

Country Link
EP (1) EP1555399A3 (fr)
DE (1) DE102004002310A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7740677B2 (en) 2005-12-28 2010-06-22 Elringklinger Ag Oil separator
WO2011107485A1 (fr) * 2010-03-01 2011-09-09 Hengst Gmbh & Co. Kg Séparateur de brouillard d'huile avec au moins un filtre centrifuge
US8171920B2 (en) 2005-12-20 2012-05-08 3nineAB Device for cleaning crank case gases
CN116517660A (zh) * 2023-05-16 2023-08-01 大创汽车系统(南通)有限公司 主动式分离器和车辆

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004033677B4 (de) * 2004-07-09 2016-03-03 Volkswagen Ag Kombination aus einem Druckregelventil und einem Ölabscheider für Entlüftungsgase eines Kurbelgehäuses
DE202005013112U1 (de) * 2005-08-17 2006-12-28 Hengst Gmbh & Co.Kg Ölabscheider zur Abscheidung von Öl aus dem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine
US7594501B2 (en) 2006-12-22 2009-09-29 Dichtungstechnik G. Bruss Gmbh & Co., Kg Cylinder head cover for an internal combustion engine
DE102007046235B4 (de) * 2006-12-22 2015-06-03 Dichtungstechnik G. Bruss Gmbh & Co. Kg Zylinderkopfhaube für einen Verbrennungsmotor
DE202007011585U1 (de) 2007-08-17 2007-10-18 Dichtungstechnik G. Bruss Gmbh & Co. Kg Ölrücklaufventil für Kurbelgehäuseentlüftung
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29908116U1 (de) 1999-05-06 2000-09-28 Hengst Walter Gmbh & Co Kg Ölabscheider zur Entölung von Kurbelgehäuse-Entlüftungsgasen einer Brennkraftmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919311C1 (de) * 1999-04-28 2001-02-15 Wernicke & Co Gmbh Verfahren und Vorrichtung zum berührungslosen Abtasten der Brillenglasöffnung einer Brillenfassung oder des Umfangs eines Brillenglases oder einer Formscheibe
DE19948163A1 (de) * 1999-10-07 2001-04-12 Volkswagen Ag Vorrichtung für die Kurbelgehäuse/Zylinderkopf-Entlüftung eines Verbrennungsmotors
JP3923288B2 (ja) * 2001-08-06 2007-05-30 本田技研工業株式会社 エンジンの気液分離装置
DE10239899A1 (de) * 2002-08-30 2004-03-25 Mann + Hummel Gmbh Bauteilverbindung
DE10325055A1 (de) * 2003-06-02 2004-12-23 Mann + Hummel Gmbh Einrichtung zum Schalten von Zyklonen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29908116U1 (de) 1999-05-06 2000-09-28 Hengst Walter Gmbh & Co Kg Ölabscheider zur Entölung von Kurbelgehäuse-Entlüftungsgasen einer Brennkraftmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8171920B2 (en) 2005-12-20 2012-05-08 3nineAB Device for cleaning crank case gases
US7740677B2 (en) 2005-12-28 2010-06-22 Elringklinger Ag Oil separator
WO2011107485A1 (fr) * 2010-03-01 2011-09-09 Hengst Gmbh & Co. Kg Séparateur de brouillard d'huile avec au moins un filtre centrifuge
CN116517660A (zh) * 2023-05-16 2023-08-01 大创汽车系统(南通)有限公司 主动式分离器和车辆

Also Published As

Publication number Publication date
DE102004002310A1 (de) 2005-08-04
EP1555399A3 (fr) 2009-11-25

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