EP2826965B1 - Entfernung von Durchblasgas aus einem Kurbelgehäuse ohne Hilfsantrieb - Google Patents

Entfernung von Durchblasgas aus einem Kurbelgehäuse ohne Hilfsantrieb Download PDF

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Publication number
EP2826965B1
EP2826965B1 EP13176549.7A EP13176549A EP2826965B1 EP 2826965 B1 EP2826965 B1 EP 2826965B1 EP 13176549 A EP13176549 A EP 13176549A EP 2826965 B1 EP2826965 B1 EP 2826965B1
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EP
European Patent Office
Prior art keywords
blow
gas
fan wheel
crankcase
crank shaft
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.)
Active
Application number
EP13176549.7A
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English (en)
French (fr)
Other versions
EP2826965A1 (de
Inventor
Olaf Berger
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.)
Caterpillar Energy Solutions GmbH
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Caterpillar Energy Solutions 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 Caterpillar Energy Solutions GmbH filed Critical Caterpillar Energy Solutions GmbH
Priority to EP13176549.7A priority Critical patent/EP2826965B1/de
Priority to US14/329,211 priority patent/US20150013625A1/en
Priority to CN201410336145.9A priority patent/CN104295341B/zh
Publication of EP2826965A1 publication Critical patent/EP2826965A1/de
Application granted granted Critical
Publication of EP2826965B1 publication Critical patent/EP2826965B1/de
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Anticipated expiration legal-status Critical

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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
    • F01M13/02—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
    • 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
    • F01M13/02—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
    • F01M2013/026—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with pumps sucking air or blow-by gases from the crankcase
    • 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 present disclosure generally refers to a blow-by gas removing device for an internal combustion engine.
  • the disclosure refers to a blow-by gas removing device for removing blow-by gas including oil or oil mist present in a crankcase of the internal combustion engine and for discharging it to an oil separating device.
  • the present disclosure in general relates to a method for removing blow-by gas including oil of an internal combustion engine.
  • the method disclosed comprises the use of rotating power of a rotating engine component of the internal combustion engine for driving a fan wheel configured to remove the blow-by gas, particularly to suck off the blow-by gas out of the crankcase.
  • the present disclosure is directed, at least in part, to improving or overcoming one or more aspects of prior systems.
  • a first aspect of the present disclosure refers to a blow-by gas removing device according to claim 1.
  • Another aspect of the present disclosure refers to a method for removing blow-by gas according to claim 9.
  • Fig. 1 shows a schematic cross-sectional view of a part of an internal combustion engine provided with a blow-by gas removing device.
  • an internal combustion engine 10 comprises a crank shaft 15.
  • the crank shaft 15 rotates about a longitudinal axis 20.
  • a gear wheel 23 is attached to the crank shaft 15.
  • the gear wheel 23 is fitted on an end of the crank shaft 15 by a plurality of bolts 24.
  • the gear wheel 23 is used to drive an oil pump.
  • the crank shaft 15 and all engine components attached can be enclosed by a crankcase 1.
  • crankcase 1 is a housing for the crank shaft 15 and forms a cavity below cylinders in the internal combustion engine 10.
  • a torsional vibration damper 16 is attached to the crank shaft 15 in a non-rotatable manner. And, if the crank shaft 15 rotates during operation of the internal combustion engine, the torsional vibration damper 16 also rotates.
  • the torsional vibration damper 16 is mounted on a shoulder 21 of the crank shaft 15 by means of a plurality of bolts 22.
  • a fan wheel 25 is attached or mounted to a face 17 of the torsional vibration damper 16.
  • the fan wheel 25 is bolted to the face 17 of the torsional vibration damper 16 by means of bolts 22.
  • the fan wheel 25 may be attached to the face 17 by means of an adhesive.
  • the fan wheel 25 may be integrally formed on the face 17 of the torsional vibration damper 16, I particular formed in one piece with the torsional vibration damper 16.
  • the fan wheel 25 may be fitted on a part of the gear wheel 23 or directly on the crank shaft 15. In all cases, the fan wheel 25 has to be mounted non-rotatably on the crank shaft 15 or any other driven engine component which is non-rotatably mounted on the crank shaft 15. As a result, the fan wheel 25 rotates due to rotation of the crank shaft 15.
  • a casing or housing 30 is stationary arranged and encloses the fan wheel 25 and, for example, other rotating components like the torsional vibration damper 16 at least partially.
  • the housing 30 surrounds the gear wheel 23 in such a manner that blow-by gas including oil can be sucked in through a gap 31 provided between the gear wheel's outer circumference and an inner edge of the housing 30.
  • the housing 30 is provided with an outlet or opening 35 at the radial outer side of the housing 30.
  • the opening 35 opens to the outer radial circumference of the fan wheel 25.
  • the opening 35 is part of a connection flange 36 of a connection part 37
  • the connection part 37 is connected to a pipe 38 by means of a bellow 39 configured to compensate length variations due to thermal conditions during operation of the internal combustion engine.
  • the pipe 38 connects to an oil separating device 40 comprising one or more filter elements known in the prior art.
  • the oil separating device 40 is connected to an inlet pipe 55, in which the purified blow-by gas 50 is guided to the entrance site, normally an inlet pipe of the internal combustion engine.
  • inlet pipe 55 connected to the oil separating device 40 is already part of an inlet manifold of the internal combustion engine 10.
  • blow-by gas including oil and/or other particles accumulates in the crankcase 1 of the internal combustion engine 10.
  • a separate fan is provided to remove the blow-by gas 45 from the crankcase 1 and to supply the same to an external oil separating device 40.
  • the fan wheel 25 non-rotatably mounted on the torsional vibration damper 16 rotates together with the torsional vibration damper 16 due to rotation of the crank shaft 15.
  • the blow-by gas 45 is being sucked in, inter alia, through the gap 31 at the radial inner side of the fan wheel 25. Due to the rotation of the fan wheel 25 and the shape of that fan wheel 25, the blow-by gas 45 travels to the radial outer side of the fan wheel 25 and is compressed.
  • the, for example, slightly compressed blow-by gap 45 is discharged through outlet or opening 35 and guided into oil separating device 40.
  • the blow-by gas is purified, and particularly the oil in the blow-gas is separated.
  • the purified blow-by gas 50 is supplied to the environment or to an inlet pipe 55 of the internal combustion engine 10. Alternatively, the purified blow-by gas 50 may be routed back to an intake manifold.
  • the casing may be a separate housing made of sheet metal or a contoured crankcase contour.
  • the fan wheel may be directly integrated into the torsional vibration damper and/or other components rotating together with the crank shaft of the internal combustion engine.
  • any other driven engine component may be used as a rotating support for the fan wheel.
  • the removing of blow-by gas including oil is performed without using a separate auxiliary drive for a common fan configured to suck in the blow-by gas and discharge it to an oil removing device comprising, for example, a filter.
  • an oil removing device comprising, for example, a filter.
  • the power of a rotating engine component is used the first time for driving a fan wheel sucking off the blow-by gas. Consequently, no extra drive is necessary for the blow-by gas removing device.
  • a gas engine is an internal combustion engine which runs on a gas fuel, such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • a gas fuel such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • gas fuel such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • gas fuel such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • gas fuel such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • gas fuel such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • gas fuel such as coal gas, producer gas, biogas, landfill gas or natural gas.
  • blow-by gas and “blow-by gas including oil” mean the same, namely blow-by gas as it is present in an internal combustion engine during operation, in particular blow-by gas present in a crankcase.
  • a device and method as disclosed herein particularly refer to a blow-by recirculation system and a blow-by recirculation method if the blow-by gas removing as disclosed herein is combined with supplying the blow-by gas in the inlet or suction part of the engine.

Landscapes

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

Claims (12)

  1. Durchblasgasentfernungsvorrichtung (5) für einen Verbrennungsmotor (10) mit einem Kurbelgehäuse (1), umfassend:
    eine Kurbelwelle (15), die konfiguriert ist, während des Betriebs des Verbrennungsmotors (10) angetrieben zu werden und sich um eine Längsachse (20) zu drehen,
    ein Lüfterrad (25), das an der Kurbelwelle (15) befestigt ist, so dass sich das Lüfterrad (25) zusammen mit der Kurbelwelle (15) dreht;
    einen Drehschwingungsdämpfer (16), der drehfest an dem Lüfterrad (25) angebracht ist;
    ein Gehäuse (30), welches das Lüfterrad (25) zumindest teilweise bedeckt, wobei das Gehäuse (30) mit einem Auslass (35) bereitgestellt ist, der konfiguriert ist, um mit einer Ölabscheidevorrichtung (40) verbunden zu werden;
    wobei das Lüfterrad (25) und das Gehäuse (30) derart ausgebildet sind, dass Durchblasgas (45) aus dem Kurbelgehäuse (1) abgesaugt und durch den Auslass (35) abgeführt wird.
  2. Durchblasgasentfernungsvorrichtung (5) nach Anspruch 1, wobei das Lüfterrad (25) integral an dem Torsionsschwingungsdämpfer (16) ausgebildet ist.
  3. Durchblasgasentfernungsvorrichtung (5) nach Anspruch 1 oder 2, wobei der Torsionsschwingungsdämpfer (16) an einer Kurbelwelle (15) befestigt ist.
  4. Durchblasgasentfernungsvorrichtung (5) nach einem der vorhergehenden Ansprüche, wobei das Gehäuse (30) das Lüfterrad (25) und die Kurbelwelle (15) zumindest teilweise umschließt.
  5. Durchblasgasentfernungsvorrichtung (5) nach Anspruch 4, wobei das Gehäuse (30) zusätzlich die Ölabscheidevorrichtung (40) zumindest teilweise umschließt.
  6. Durchblasgasentfernungsvorrichtung (5) nach einem der vorhergehenden Ansprüche, ferner umfassend die Ölabscheidevorrichtung (40) und ein Einlassrohr (55) des Verbrennungsmotors, wobei die Ölabscheidevorrichtung (40) mit dem Einlassrohr (55) verbunden ist.
  7. Durchblasgasentfernungsvorrichtung (5) nach einem der vorhergehenden Ansprüche, ferner umfassend das Kurbelgehäuse (1), wobei das Kurbelgehäuse (1) eines von der Kurbelwelle (15) und dem Lüfterrad (25) und dem Gehäuse (30) umschließt.
  8. Durchblasgasentfernungsvorrichtung (5) nach einem der vorhergehenden Ansprüche, ferner umfassend einen Lukendeckel des Verbrennungsmotors, wobei die Ölabscheidevorrichtung (40) an dem Lukendeckel montiert ist.
  9. Verfahren zum Entfernen von Durchblasgas einschließlich Öl eines Verbrennungsmotors mit einem Kurbelgehäuse (1), wobei das Verfahren die folgenden Schritte umfasst:
    Drehen einer Kurbelwelle (15), die einen Torsionsschwingungsdämpfer (16) umfasst, und eines Lüfterrads (25), das an der Kurbelwelle (15) befestigt ist, zusammen um eine Längsachse (20);
    wobei der Torsionsschwingungsdämpfer (16) drehfest am Lüfterrad (25) angebracht ist;
    Absaugen von Durchblasgas (45) einschließlich Öl aus dem Kurbelgehäuse (1) mit Hilfe des Lüfterrads (25);
    Verdichten des Durchblasgases (45) einschließlich Öl mit Hilfe des Lüfterrads (25);
    Abführen des komprimierten Durchblasgases (45) einschließlich Öl zu einer Ölabscheidevorrichtung (40).
  10. Verfahren nach Anspruch 9, ferner umfassend den Schritt des integralen Ausbildens eines Lüfterrads (25) an dem Torsionsschwingungsdämpfer (16).
  11. Verfahren nach einem der Ansprüche 9-10, wobei der Schritt des Absaugens von Durchblasgas (45) einschließlich Öl an der radialen Innenseite des Lüfterrads (25) durchgeführt wird.
  12. Verfahren nach Anspruch 9-11, wobei der Schritt des Ablassens des Durchblasgases (45) einschließlich Öl an der radialen Außenseite des Lüfterrads (25) durchgeführt wird.
EP13176549.7A 2013-07-15 2013-07-15 Entfernung von Durchblasgas aus einem Kurbelgehäuse ohne Hilfsantrieb Active EP2826965B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13176549.7A EP2826965B1 (de) 2013-07-15 2013-07-15 Entfernung von Durchblasgas aus einem Kurbelgehäuse ohne Hilfsantrieb
US14/329,211 US20150013625A1 (en) 2013-07-15 2014-07-11 Removing of blow-by gas out of crankcase without auxiliary drive
CN201410336145.9A CN104295341B (zh) 2013-07-15 2014-07-15 向曲轴箱外无辅助驱动的窜气移除

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13176549.7A EP2826965B1 (de) 2013-07-15 2013-07-15 Entfernung von Durchblasgas aus einem Kurbelgehäuse ohne Hilfsantrieb

Publications (2)

Publication Number Publication Date
EP2826965A1 EP2826965A1 (de) 2015-01-21
EP2826965B1 true EP2826965B1 (de) 2020-11-04

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EP13176549.7A Active EP2826965B1 (de) 2013-07-15 2013-07-15 Entfernung von Durchblasgas aus einem Kurbelgehäuse ohne Hilfsantrieb

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US (1) US20150013625A1 (de)
EP (1) EP2826965B1 (de)
CN (1) CN104295341B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020205602B4 (de) 2020-05-04 2023-06-01 Volkswagen Aktiengesellschaft Torsionsschwingungsdämpfer sowie Brennkraftmaschine mit Torsionsschwingungsdämpfer und Ölabscheider

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Publication number Priority date Publication date Assignee Title
US5239972A (en) * 1992-03-24 1993-08-31 Nippon Soken, Inc. Gas/liquid separation device
DE19803872C2 (de) * 1998-01-31 2001-05-10 Daimler Chrysler Ag Entlüfungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine
DE10140301A1 (de) * 2001-08-16 2003-02-27 Daimler Chrysler Ag Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine
DE10251940A1 (de) * 2002-11-08 2004-05-19 Mann + Hummel Gmbh Zentrifugalabscheider
DE20302824U1 (de) * 2003-02-21 2004-07-08 Hengst Gmbh & Co.Kg Ölabscheider für die Reinigung von Ölnebel enthaltendem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine
AT501008B1 (de) * 2006-02-02 2007-12-15 Avl List Gmbh Flüssigkeitsgekühlte brennkraftmaschine
DE112007000188A5 (de) * 2006-02-02 2009-01-15 Avl List Gmbh Kurbelgehäuseentlüftungssystem
JP2009121341A (ja) * 2007-11-14 2009-06-04 Toyota Boshoku Corp クランクルーム換気装置
SE534773C2 (sv) * 2010-04-09 2011-12-13 Alfa Laval Corp Ab Centrifugalseparator anordnad inuti en förbränningsmotor
US8408190B2 (en) * 2011-07-06 2013-04-02 GM Global Technology Operations LLC Air-oil separator for extracting oil from engine blowby gas

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
EP2826965A1 (de) 2015-01-21
US20150013625A1 (en) 2015-01-15
CN104295341B (zh) 2019-12-06
CN104295341A (zh) 2015-01-21

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