WO2006056393A1 - Turbocompresseur a gaz d'echappement conçu pour un moteur a combustion interne - Google Patents

Turbocompresseur a gaz d'echappement conçu pour un moteur a combustion interne Download PDF

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Publication number
WO2006056393A1
WO2006056393A1 PCT/EP2005/012469 EP2005012469W WO2006056393A1 WO 2006056393 A1 WO2006056393 A1 WO 2006056393A1 EP 2005012469 W EP2005012469 W EP 2005012469W WO 2006056393 A1 WO2006056393 A1 WO 2006056393A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
internal combustion
combustion engine
compressor
exhaust gas
Prior art date
Application number
PCT/EP2005/012469
Other languages
German (de)
English (en)
Inventor
Josef Günther
Alexander Kaiser
Berthold Keppeler
Detlef Scharr
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 WO2006056393A1 publication Critical patent/WO2006056393A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F02B37/11—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump driven by other drive at starting only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to an exhaust gas turbocharger for an internal combustion engine according to the preamble of claim 1 and of claim 6.
  • An exhaust-gas turbocharger is already known (Publication No. JP 2003254051 A, Application No. 2002058839), the turbine of which can be bypassed by means of a bypass.
  • a boost pressure control valve a so-called waste gate valve is arranged, which can open or close the bypass.
  • a bypass of the turbine of the exhaust gas turbocharger In the open position of the waste gate valve, a bypass of the turbine of the exhaust gas turbocharger, wherein the exhaust gas directly into one of the turbine downstream
  • Exhaust gas purification device in particular catalyst
  • Such waste gate valves are known to protect the exhaust gas turbocharger by bypassing the exhaust gas around the turbine at high amounts of exhaust gas.
  • This makes it possible to obtain a relatively high temperature level of the exhaust gas in the cold start phase of the internal combustion engine, which leads to a faster startup in a downstream catalytic converter.
  • By bypassing the turbine by means of the waste gate valve it follows that no operation of the from the turbine driven compressor more occurs.
  • In the critical cold start phase of the internal combustion engine so • no corresponding increase in pressure of the intake air is possible.
  • This results in a non-optimal operation of the internal combustion engine result which also causes increased hydrocarbon emissions in the exhaust gas in addition to increased fuel consumption.
  • the dynamic behavior of the exhaust gas turbocharger is not optimal, so that the ride comfort is also impaired.
  • the exhaust gas turbocharger according to the invention with the characterizing features of claim 1 and claim 6 has the advantage that in addition to the achievement of a high exhaust gas temperature in the operating range of the cold start phase of the internal combustion engine, a compression of the intake air of the internal combustion engine is ensured. This leads to an optimal operation of the internal combustion engine in the critical cold start phase, which also reduced in addition to a reduced fuel consumption
  • Hydrocarbon emissions in the exhaust gas are the result. Furthermore, the increase in the exhaust gas temperature is carried out in a fuel-efficient manner compared to conventional heating measures for the exhaust gas.
  • the dynamic behavior of the exhaust gas turbocharger is improved, so that the ride comfort in the critical cold start phase and also in the subsequent warm-up phase of the internal combustion engine is improved.
  • FIG. 1 shows a first embodiment according to the invention of the exhaust gas turbocharger for an internal combustion engine in a schematically simplified functional representation
  • Fig. 2 shows a second embodiment according to the invention of the exhaust gas turbocharger for an internal combustion engine in a schematically simplified functional representation
  • Fig. 3 shows a third embodiment of the invention the exhaust gas turbocharger for an internal combustion engine in a schematically simplified functional representation. Description of the embodiments
  • FIG. 1 shows a first embodiment of an exhaust-gas turbocharger according to the invention for an internal combustion engine 1, which has a compressor 2 and a turbine 3.
  • the compressor 2 and the turbine 3 are rotatably connected via a shaft 8 with each other.
  • the internal combustion engine 1 may be an Otto internal combustion engine or a diesel internal combustion engine.
  • the turbine 3 drives in a known manner via the shaft 8 to the compressor 2.
  • the operation of the turbine 3 is known to take place via the exhaust gases of the internal combustion engine 1, which are supplied from an exhaust line 5 of the internal combustion engine 1 of the turbine 3.
  • a bypass 12 is provided in the exhaust line 5, in which a valve, a so-called waste gate valve 10, is introduced.
  • Such valves are used for boost pressure control, in which they can control the exhaust gas quantity entering or entering the turbine 3 by more or less opening or closing the bypass 12, whereby a corresponding operation of the compressor 2 is established.
  • the bypass 12 is opened, so that the exhaust gases of the internal combustion engine 1 from the exhaust line 5, bypassing the turbine 3 directly into a downstream of the turbine 3 provided exhaust gas purification device 25, in particular a catalyst can flow.
  • Such waste gate valves 10 are used in addition to the boost pressure control and the protection of the turbine.
  • This drive can, as indicated in Figure 1, be designed as an electric drive 14, which acts for example directly to a compressor shaft of the compressor 2, not shown.
  • the electric drive 14 can be coupled for example via a coupling 16 to the compressor 2 and its compressor shaft.
  • the electrical energy must within engine, for example, over a generator of the internal combustion engine 1 are provided.
  • This additional exhaust gas temperature increase is desirable in the cold start phase of the internal combustion engine 1, as it leads to an improved effect of the catalyst 25 or to a faster popping thereof due to the increase in the exhaust gas temperature.
  • the exhaust gas temperature increase can be further enhanced by other, not shown, further electrical consumers of the internal combustion engine or of a motor vehicle are switched on.
  • the electric heaters of a urea metering device not shown in detail for the exhaust gas purification device 25 can be used for this purpose.
  • the wastegate valve 10 is brought into its closed position or boost pressure control position, so that the exhaust gases essentially pass back to the catalyst 25 via the turbine 3.
  • the exhaust turbine 3 In this state when acted upon by exhaust turbine 3 is a conventional drive of the compressor 2 via the shaft 8, so that it is possible to turn off the additional drive 14 again.
  • the electric drive 14 is, as stated, provided only in the cold start phase of the internal combustion engine 1. But it is also possible to use the additional electric drive 14 for short-term increase in boost pressure during normal operation of the internal combustion engine 1 or to activate for a short time.
  • FIG. 2 shows a second exemplary embodiment of the exhaust-gas turbocharger according to the invention, which via the additional drive 15 independent of the turbine 3 features.
  • the same or equivalent components are identified by the same reference numerals of the first embodiment.
  • the drive 15 may be a mechanical drive, for example in the form of a crankshaft 15, which is coupled via the coupling 16 to a compressor shaft of the compressor 2, not shown.
  • the mechanical drive 15, 16 of the compressor 2 is as in the first embodiment of the
  • the mechanical drive 15 can be decoupled from the compressor 2 again via the coupling 16. But it is also possible to use the additional mechanical drive 15 for short-term increase in boost pressure during normal operation of the internal combustion engine 1 or to activate for a short time.
  • FIG. 3 shows a third exemplary embodiment according to the invention, in which the same or equivalent components have been identified by the same reference numerals of the first and second exemplary embodiments.
  • a second compressor 20 is provided instead of an additional electric or mechanical drive of the compressor 2.
  • the second compressor 20 is housed downstream of the first compressor 2 in the intake tract 4 of the internal combustion engine 1 and serves as a substitute for the first, in the cold start phase of the internal combustion engine 1 non-driven compressor 2. In the cold start phase takes place via the waste gate valve 10 bridging the Turbine 3, which therefore fails as a drive for the first compressor 2.
  • the second compressor 20 has a second bypass 22, which bypasses the second compressor 20.
  • a second valve 30 in the manner of the waste gate valve 10th housed, which opens the second bypass 22 in an open position and closes the second bypass 22 in a closed position.
  • a bypass of the second compressor 20 which is then ineffective.
  • Only in the closed position of the second valve 30 is an admission of the second compressor 20 with the first, in the cold start phase of the internal combustion engine 1 not active compressor 2 ago flowing air.
  • the loading or closed position of the second valve 30 is inventively provided in particular in the cold start phase of the internal combustion engine 1.
  • a dashed line in Figure 3 indicated electric drive 14 may be provided, which is optionally connected via a clutch 16 as in the first embodiment.
  • electric drive 14 it is also possible, as shown in FIG. 3 by a solid line, to mechanically drive the second compressor 20, for example via a crankshaft 15, which can be connected to the second compressor 20 via a coupling 16.
  • control of the first valve 10, the second valve 30 and the electric Drive 14 and / or the clutch 16 are taken over by an electrical control unit 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention concerne un turbocompresseur à gaz d'échappement conçu pour un moteur à combustion interne, comprenant un compresseur (2) dans le tronçon d'aspiration (4), et une turbine (3) dans le tronçon d'échappement (5). La turbine (3) et le compresseur (2) sont reliés de manière à être solidaires en rotation par l'intermédiaire d'un arbre commun (8). La turbine (3) est entourée d'une dérivation (12) qui comporte une soupape (10). Le compresseur (2) comprend un entraînement (14, 15) qui est indépendant de la turbine (3), et qui activé pour maintenir la compression dans le tronçon d'aspiration (4) lors du démarrage à froid du moteur à combustion interne (1).
PCT/EP2005/012469 2004-11-27 2005-11-22 Turbocompresseur a gaz d'echappement conçu pour un moteur a combustion interne WO2006056393A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004057397A DE102004057397A1 (de) 2004-11-27 2004-11-27 Abgasturbolader für eine Brennkraftmaschine
DE102004057397.2 2004-11-27

Publications (1)

Publication Number Publication Date
WO2006056393A1 true WO2006056393A1 (fr) 2006-06-01

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Family Applications (1)

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PCT/EP2005/012469 WO2006056393A1 (fr) 2004-11-27 2005-11-22 Turbocompresseur a gaz d'echappement conçu pour un moteur a combustion interne

Country Status (2)

Country Link
DE (1) DE102004057397A1 (fr)
WO (1) WO2006056393A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2261479A1 (fr) * 2008-03-19 2010-12-15 IHI Corporation Procédé et système de réchauffement pour convertisseur catalytique en vue de purifier des gaz d'échappement
GB2492354A (en) * 2011-06-28 2013-01-02 Gm Global Tech Operations Inc Operating an i.c. engine having an electrically driven charge air compressor
GB2502269A (en) * 2012-05-21 2013-11-27 Perkins Engines Co Ltd Controlling the starting of a turbocharged i.c. engine having an electric turbo assist (ETA) device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010249019A (ja) * 2009-04-15 2010-11-04 Mitsubishi Electric Corp 内燃機関
DE102014208092A1 (de) * 2014-04-29 2015-10-29 Mahle International Gmbh Verfahren zum Betrieb eines Kraftfahrzeugs

Citations (6)

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Publication number Priority date Publication date Assignee Title
US2608818A (en) * 1948-03-11 1952-09-02 Rolls Royce Internal-combustion engine with supercharger driven by an exhaust turbine
US2654991A (en) * 1950-09-09 1953-10-13 Nettel Frederick Control for engine turbosupercharger systems
US3048005A (en) * 1959-06-25 1962-08-07 Garrett Corp Starting system for engines
US5704323A (en) * 1993-12-08 1998-01-06 Scania Cv Aktiebolag Arrangement in - and method for starting - an internal combustion engine
US5771695A (en) * 1991-05-30 1998-06-30 Turbodyne Sys Inc Method and apparatus for overcoming turbo lag
DE10319594A1 (de) * 2003-05-02 2004-11-18 Daimlerchrysler Ag Turboladereinrichtung sowie ein Verfahren zum Betreiben einer Turboladereinrichtung

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US4730457A (en) * 1985-10-29 1988-03-15 Fuji Jukogyo Kabushiki Kaisha Supercharging system for automotive engines
US5551236A (en) * 1994-05-02 1996-09-03 Dresser Industries, Inc. Turbocharger control management system
DE10159801A1 (de) * 2001-12-05 2003-04-10 Audi Ag Verbrennungsmotor und Verfahren zum Betreiben eines Verbrennungsmotors
DE10302453A1 (de) * 2002-01-31 2003-08-14 Bosch Gmbh Robert Verfahren und Vorrichtung zur Regelung des Ladedrucks eines Abgasturboladers
JP4193400B2 (ja) * 2002-03-05 2008-12-10 株式会社Ｉｈｉ 排気タービン過給機付きエンジン
DE50204849D1 (de) * 2002-03-19 2005-12-15 Ford Global Tech Llc Unterstützendes elektrisches Ladesystem für eine Brennkraftmaschine und Verfahren zu dessen Regelung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608818A (en) * 1948-03-11 1952-09-02 Rolls Royce Internal-combustion engine with supercharger driven by an exhaust turbine
US2654991A (en) * 1950-09-09 1953-10-13 Nettel Frederick Control for engine turbosupercharger systems
US3048005A (en) * 1959-06-25 1962-08-07 Garrett Corp Starting system for engines
US5771695A (en) * 1991-05-30 1998-06-30 Turbodyne Sys Inc Method and apparatus for overcoming turbo lag
US5704323A (en) * 1993-12-08 1998-01-06 Scania Cv Aktiebolag Arrangement in - and method for starting - an internal combustion engine
DE10319594A1 (de) * 2003-05-02 2004-11-18 Daimlerchrysler Ag Turboladereinrichtung sowie ein Verfahren zum Betreiben einer Turboladereinrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2261479A1 (fr) * 2008-03-19 2010-12-15 IHI Corporation Procédé et système de réchauffement pour convertisseur catalytique en vue de purifier des gaz d'échappement
EP2261479A4 (fr) * 2008-03-19 2012-03-14 Ihi Corp Procédé et système de réchauffement pour convertisseur catalytique en vue de purifier des gaz d'échappement
US8468801B2 (en) 2008-03-19 2013-06-25 Ihi Corporation Method and system for warming up catalytic converter for cleaning up exhaust gas
GB2492354A (en) * 2011-06-28 2013-01-02 Gm Global Tech Operations Inc Operating an i.c. engine having an electrically driven charge air compressor
GB2502269A (en) * 2012-05-21 2013-11-27 Perkins Engines Co Ltd Controlling the starting of a turbocharged i.c. engine having an electric turbo assist (ETA) device
GB2502269B (en) * 2012-05-21 2014-12-03 Perkins Engines Co Ltd Method and apparatus for controlling the starting of a forced induction internal combustion engine
US9810169B2 (en) 2012-05-21 2017-11-07 Perkins Engines Company Limited Method and apparatus for controlling the starting of a forced induction internal combustion engine

Also Published As

Publication number Publication date
DE102004057397A1 (de) 2006-06-08

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