EP1514012B1 - Separateur d'huile centrifuge utilise dans un carter de vilebrequin d'un moteur a combustion interne - Google Patents

Separateur d'huile centrifuge utilise dans un carter de vilebrequin d'un moteur a combustion interne Download PDF

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Publication number
EP1514012B1
EP1514012B1 EP03722543A EP03722543A EP1514012B1 EP 1514012 B1 EP1514012 B1 EP 1514012B1 EP 03722543 A EP03722543 A EP 03722543A EP 03722543 A EP03722543 A EP 03722543A EP 1514012 B1 EP1514012 B1 EP 1514012B1
Authority
EP
European Patent Office
Prior art keywords
centrifuge
oil separator
shaft
centrifugal oil
housing
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
EP03722543A
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German (de)
English (en)
Other versions
EP1514012A1 (fr
Inventor
Alexander Berger
Roland NÖLL
Christoph Reckzügel
Timo Schmidt
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1514012A1 publication Critical patent/EP1514012A1/fr
Application granted granted Critical
Publication of EP1514012B1 publication Critical patent/EP1514012B1/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
    • 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
    • F01M2013/0422—Separating oil and gas with a centrifuge device

Definitions

  • the invention relates to a centrifugal oil separator in a crankcase of an internal combustion engine according to the preamble of claim 1.
  • centrifugal oil separator Such a centrifugal oil separator is described in the document DE 196 07 919 A1.
  • oil particles can be deposited in an oil-air mixture in a crankcase of an internal combustion engine and returned to the oil sump.
  • the centrifugal oil separator uses the principle here of separating and discharging the oil particles by means of centrifugal forces by means of rotation.
  • the oil separator has a centrifuge housing with a separating chamber therein, in which baffles are arranged, on which the oil particles can accumulate. The collected oil is discharged radially, the cleaned air is discharged axially via a discharge channel in the centrifuge shaft.
  • centrifuge housing is usually flanged and screwed in the known oil separators on a shaft driven by the internal combustion engine.
  • the invention is based on the problem of improving the ease of assembly of centrifugal oil separators. In addition, a good rotational ability and long life of the oil separator should be ensured.
  • the centrifugal oil separator according to the invention has a centrifuge housing made of plastic, in which a metal bush is integrated, which is pushed onto the centrifuge shaft.
  • the centrifuge housing and the metal bushing form a prefabricated unit which is to be pushed onto the shaft and connected to it.
  • the metal bushing is able to transmit high holding forces, so that a secure attachment to the centrifuge shaft is possible.
  • the plastic centrifuge housing is characterized by a low weight, which in particular also results in lower centrifugal forces in the housing wall during rotation of the oil separator.
  • the metal bushing can be pushed with a small clearance on the centrifuge shaft; During operation, game-related forces are readily absorbed by the metal bushing, relieving the centrifuge housing of these forces, thereby providing improved rotational capability and longer life.
  • the centrifuge shaft is designed as a separate component which is non-rotatably connected to a rotating shaft of the internal combustion engine - for example, the camshaft, the crankshaft or a balance shaft - is connected.
  • the centrifugal oil separator with the separate centrifuge shaft form a preassembled unit which is prefabricated used in the internal combustion engine and connected thereto. It has proven to be expedient to connect the oil separator with a sprocket, wherein the centrifuge shaft is inserted into a recess in the sprocket, in particular as an interference fit is inserted into the recess. Additional connection measures between the oil separator and the shaft can therefore be dispensed with in principle.
  • an air guiding space can be enclosed in particular air-tight and pressure-tight, which serves for discharging the clean air after the deposition of the oil.
  • the air guide space advantageously encloses annularly the centrifuge shaft, which communicates via radial openings with the air guide space, through which the clean air can escape radially inwardly into an axially extending flow channel in the centrifuge shaft. The clean air can be removed from the oil separator via the axial flow channel.
  • metal bushing is injected into the impeller.
  • a locking ring may be mounted on the shaft.
  • a nut into consideration, which is screwed onto the metal bushing.
  • centrifugal oil separator 1 is rotatably connected to a camshaft 2 of an internal combustion engine and is seated on an end face of a sprocket 3, which is flanged frontally to the camshaft 2 and fixedly coupled thereto.
  • the oil separator 1 comprises a centrifuge housing 4, which is made of plastic, and a metal bushing 5, which is integrated in the centrifuge housing 4 and forms the hub of the centrifuge housing.
  • the oil separator 1 comprises a centrifuge shaft 6, on which the metal bush 5 is pushed.
  • the metal bush 5 is secured both in the circumferential direction and axially against unintentional release of the centrifuge shaft 6.
  • a locking ring 8 is provided, which is insertable into a circumferential groove on the centrifuge shaft 6 and in turn is secured against axial loss.
  • the centrifuge shaft 6 is designed as a separate, independent of the camshaft 2 component.
  • the centrifuge shaft 6 is inserted into an axial recess in the sprocket 3, in particular pushed under pressure, optionally also additional or alternative fastening measures come into consideration.
  • the oil separator 1 On the side facing away from the sprocket 3, the oil separator 1 has a ⁇ labscheiderdeckel 7, which is also seated on the centrifuge shaft 6.
  • the oil separator lid 7 also forms part of the oil separator 1 and, like the centrifuge housing 4, the metal bushing 5 and the centrifuge shaft 6 can be assembled into a prefabricated unit.
  • a separation chamber 10 is formed, which circulates annularly around the metal bushing 5 and in which the radially according to arrow 11 flowing into the housing air-oil mixture is separated into its components oil and air.
  • the inflow of the air-oil mixture via a radial inflow channel 12, which is formed between an end face of the centrifuge housing 4 and the oil separator lid 7.
  • baffles 13 may be located to assist the deposition of the oil.
  • the separated oil is discharged radially according to arrow 14 through outflow openings 15 in the peripheral wall of the centrifuge housing 4.
  • the clean air leaves the separation chamber 10 via axial outflow openings 16 in a side wall of the centrifuge housing 4 facing the sprocket 3 and initially flows into an annular air guidance space 18, which is located in a End face of the sprocket 3 is located and is bounded axially by a wall side of the centrifuge housing 4 and radially inwardly of the centrifuge shaft 6.
  • the air guide chamber 18 is in particular sealed air-tight and pressure-tight relative to the environment. To assist the sealing a sealing ring 19 between the centrifuge housing 4 and sprocket 3 is provided.
  • the centrifuge shaft 6 annularly enclosing air duct 18 communicates via radial bores 20 in the wall of the centrifuge shaft 6 with an axially extending flow channel 21 in the interior of the centrifuge shaft.
  • the clean air is guided from the air guide chamber 18 in the direction of arrow 17 to the radial bores 20 and further through this radially inwardly and axially via the flow channel 21 in the direction of arrow 22 from the oil separator 1.
  • the structure of the oil separator 1 of FIG. 2 corresponds in principle to that of the previous embodiment, but with the difference that for the axial securing of metal bushing 5 and centrifuge housing 4 on the centrifuge shaft 6, a nut 23 is screwed onto the shaft 6.

Landscapes

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

Claims (10)

  1. Séparateur d'huile centrifuge dans un carter de vilebrequin d'un moteur à combustion interne, avec un carter de centrifugeuse posé de façon solidaire en rotation sur un arbre de centrifugeuse (6) rotatif, caractérisé en ce que le carter de centrifugeuse (4) est fabriqué à base de matière synthétique et un manchon métallique (5), qui est enfilé sur l'arbre de centrifugeuse (6), est intégré dans le carter de centrifugeuse (4).
  2. Séparateur d'huile centrifuge selon la revendication 1, caractérisé en ce que, l'arbre de centrifugeuse (6) est réalisé comme un composant séparé, qui est relié de façon solidaire en rotation à un arbre (2) rotatif du moteur à combustion interne.
  3. Séparateur d'huile centrifuge selon la revendication 2, caractérisé en ce que, le carter de centrifugeuse (4) est contigu axialement à une roue à chaîne (3) qui tourne avec l'arbre (2).
  4. Séparateur d'huile centrifuge selon la revendication 3, caractérisé en ce que, un espace de guidage d'air (18) pour la déviation d'air pur est formé entre un côté de paroi du carter de centrifugeuse (4) et la roue à chaîne (3) .
  5. Séparateur d'huile centrifuge selon les revendications 2 et 3, caractérisé en ce que, l'arbre de centrifugeuse (6) est inséré dans un évidemment dans la roue à chaîne (3).
  6. Séparateur d'huile centrifuge selon l'une des revendications 1 à 5, caractérisé en ce que, l'arbre de centrifugeuse (6) présente des alésages radiaux pour la déviation de l'air pur.
  7. Séparateur d'huile centrifuge selon l'une des revendications 1 à 6, caractérisé en ce que, l'arbre de centrifugeuse (6) présente un canal d'écoulement (21) axial pour la déviation d'air pur.
  8. Séparateur d'huile centrifuge selon l'une des revendications 1 à 7, caractérisé en ce que, la douille métallique (5) est injectée dans le carter de centrifugeuse (4).
  9. Séparateur d'huile centrifuge selon l'une des revendications 1 à 8, caractérisé en ce que, une bague de sûreté (8) repose sur l'arbre de centrifugeuse (6) pour le blocage axial de la douille métallique (5).
  10. Séparateur d'huile centrifuge selon l'une des revendications 1 à 9, caractérisé en ce que, un écrou rainuré (23) est vissé sur l'arbre de centrifugeuse (6) pour le blocage axial.
EP03722543A 2002-06-15 2003-04-25 Separateur d'huile centrifuge utilise dans un carter de vilebrequin d'un moteur a combustion interne Expired - Lifetime EP1514012B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10226695 2002-06-15
DE10226695A DE10226695A1 (de) 2002-06-15 2002-06-15 Zentrifugal-Ölabscheider in einem Kurbelgehäuse einer Brennkraftmaschine
PCT/EP2003/004308 WO2003106821A1 (fr) 2002-06-15 2003-04-25 Separateur d'huile centrifuge utilise dans un carter de vilebrequin d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1514012A1 EP1514012A1 (fr) 2005-03-16
EP1514012B1 true EP1514012B1 (fr) 2006-02-01

Family

ID=29594545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03722543A Expired - Lifetime EP1514012B1 (fr) 2002-06-15 2003-04-25 Separateur d'huile centrifuge utilise dans un carter de vilebrequin d'un moteur a combustion interne

Country Status (5)

Country Link
US (1) US7309308B2 (fr)
EP (1) EP1514012B1 (fr)
JP (1) JP4048297B2 (fr)
DE (2) DE10226695A1 (fr)
WO (1) WO2003106821A1 (fr)

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DE502006007644D1 (de) 2005-05-10 2010-09-23 Mahle Int Gmbh In eine axial hohle welle eines verbrennungsmotors integrierte zentrifugal-ölnebelabscheidereinrichtung
DE102005034273A1 (de) * 2005-07-22 2006-06-14 Daimlerchrysler Ag Brennkraftmaschine
US7455057B2 (en) * 2005-11-14 2008-11-25 Brp-Rotax Gmbh & Co. Kg Internal combustion engine blow-by gas ventilation system
DE102006012611A1 (de) 2006-03-20 2007-09-27 Mahle International Gmbh Zylinderkopf eines Verbrennungsmotors
US7959546B2 (en) 2007-01-24 2011-06-14 Honeywell International Inc. Oil centrifuge for extracting particulates from a continuous flow of fluid
US8166958B2 (en) * 2007-08-15 2012-05-01 GM Global Technology Operations LLC Positive crankcase ventilation system for an internal combustion engine
DE102008028173A1 (de) 2008-06-12 2009-01-22 Daimler Ag Zentrifugal-Ölabscheider
DE202008014734U1 (de) * 2008-11-06 2010-03-25 Hengst Gmbh & Co.Kg Zentrifugalabscheider
DE102009012402A1 (de) * 2009-03-10 2010-09-23 Thyssenkrupp Presta Teccenter Ag Wellenkörper mit integrierter Ölabscheideeinrichtung
SE534773C2 (sv) * 2010-04-09 2011-12-13 Alfa Laval Corp Ab Centrifugalseparator anordnad inuti en förbränningsmotor
JP5724357B2 (ja) * 2010-12-16 2015-05-27 スズキ株式会社 エンジンのブリーザ装置
US8657931B2 (en) 2011-08-17 2014-02-25 Hamilton Sundstrand Corporation Gearbox deoiler with sychnronizer
JP5867051B2 (ja) * 2011-12-14 2016-02-24 アイシン精機株式会社 オイル分離装置
JP6102468B2 (ja) * 2013-04-25 2017-03-29 スズキ株式会社 エンジンのブリーザ構造
JP6135488B2 (ja) * 2013-12-12 2017-05-31 スズキ株式会社 エンジンのブリーザ装置
EP2977573B1 (fr) * 2014-07-24 2017-05-10 Fiat Group Automobiles S.p.A. Moteur à combustion interne avec un système de recirculation de gaz de carter à séparation à deux étages
US9709602B2 (en) * 2015-04-09 2017-07-18 Fisher-Rosemount Systems, Inc. Method for supplying fieldbus communication and power from a handheld maintenance tool in a hazardous area using a single lead set
US10473206B2 (en) * 2015-07-02 2019-11-12 Deere & Company Transmission vent
GB2555557A (en) 2016-05-10 2018-05-09 Continental automotive systems inc Oil separator for reducing residue deposits
DE102016008299B4 (de) * 2016-07-06 2020-12-31 Neander Motors Ag Ölabscheideeinrichtung für eine Brennkraftmaschine
US20180085699A1 (en) * 2016-09-29 2018-03-29 Corneliu Birtok-Baneasa Air filter for internal combustion engines
US11466602B2 (en) 2016-12-02 2022-10-11 Arctic Cat Inc. Breather shaft
US11097285B2 (en) 2018-01-11 2021-08-24 Kuhn Performance Technologies, Llc Crankcase ventilation management devices, systems, and methods
JP2024093623A (ja) * 2022-12-27 2024-07-09 本田技研工業株式会社 過給式内燃機関

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JPH04153514A (ja) * 1990-10-17 1992-05-27 Toyota Autom Loom Works Ltd ブローバイガスのオイル分離装置
DE19607919B4 (de) * 1996-03-01 2005-03-17 Bayerische Motoren Werke Ag Zentrifugal-Ölabscheider für die blow-by-Gase einer Brennkraftmaschine
DE19715661A1 (de) * 1997-04-16 1998-10-22 Mann & Hummel Filter Zentrifugenrotor
DE19803872C2 (de) * 1998-01-31 2001-05-10 Daimler Chrysler Ag Entlüfungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine
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DE10140301A1 (de) * 2001-08-16 2003-02-27 Daimler Chrysler Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine

Also Published As

Publication number Publication date
JP4048297B2 (ja) 2008-02-20
DE50302341D1 (de) 2006-04-13
US20050121262A1 (en) 2005-06-09
WO2003106821A1 (fr) 2003-12-24
US7309308B2 (en) 2007-12-18
DE10226695A1 (de) 2003-12-24
JP2005533954A (ja) 2005-11-10
EP1514012A1 (fr) 2005-03-16

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