SE0104034L - Device for recirculating exhaust gases in an internal combustion engine - Google Patents

Device for recirculating exhaust gases in an internal combustion engine

Info

Publication number
SE0104034L
SE0104034L SE0104034A SE0104034A SE0104034L SE 0104034 L SE0104034 L SE 0104034L SE 0104034 A SE0104034 A SE 0104034A SE 0104034 A SE0104034 A SE 0104034A SE 0104034 L SE0104034 L SE 0104034L
Authority
SE
Sweden
Prior art keywords
exhaust gases
venturi
inlet duct
combustion engine
incorporates
Prior art date
Application number
SE0104034A
Other languages
Swedish (sv)
Other versions
SE520505C2 (en
Inventor
Ove Sponton
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE0104034A priority Critical patent/SE520505C2/en
Priority to PCT/SE2002/002177 priority patent/WO2003046361A1/en
Priority to DE10297478T priority patent/DE10297478T5/en
Priority to AU2002365539A priority patent/AU2002365539A1/en
Publication of SE0104034L publication Critical patent/SE0104034L/en
Publication of SE520505C2 publication Critical patent/SE520505C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
    • F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10262—Flow guides, obstructions, deflectors or the like
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

The present invention relates to an apparatus for recirculation of exhaust gases in a supercharged combustion engine. The apparatus incorporates an inlet duct (6, 6') for supply of a composite medium comprising a mixture of air and exhaust gases to the combustion engine (1). Mixing exhaust gases with the air reduces the combustion temperature and hence the content of nitrogen dioxides in the exhaust gases. The inlet duct (6, 6') incorporates a venturi (11) to allow the addition of exhaust gases to the pressurised air in the inlet duct (6, 6'). The apparatus incorporates flow guide means (13a-d) which are designed to create a static pressure distribution (Ps) adjacent to the venturi (11) such as to counteract growth of the boundary layer of flowing medium in an expanding third portion (11c) of the venturi (11). This means that the final inlet duct (6') situated after the venturi (11) can be made relatively short so that the apparatus may be of compact design.
SE0104034A 2001-11-30 2001-11-30 Device for recirculating exhaust gases in an internal combustion engine SE520505C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0104034A SE520505C2 (en) 2001-11-30 2001-11-30 Device for recirculating exhaust gases in an internal combustion engine
PCT/SE2002/002177 WO2003046361A1 (en) 2001-11-30 2002-11-27 Apparatus for exhaust gas recirculation in a combustion engine
DE10297478T DE10297478T5 (en) 2001-11-30 2002-11-27 Device for exhaust gas recirculation in an internal combustion engine
AU2002365539A AU2002365539A1 (en) 2001-11-30 2002-11-27 Apparatus for exhaust gas recirculation in a combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0104034A SE520505C2 (en) 2001-11-30 2001-11-30 Device for recirculating exhaust gases in an internal combustion engine

Publications (2)

Publication Number Publication Date
SE0104034L true SE0104034L (en) 2003-05-31
SE520505C2 SE520505C2 (en) 2003-07-15

Family

ID=20286165

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0104034A SE520505C2 (en) 2001-11-30 2001-11-30 Device for recirculating exhaust gases in an internal combustion engine

Country Status (4)

Country Link
AU (1) AU2002365539A1 (en)
DE (1) DE10297478T5 (en)
SE (1) SE520505C2 (en)
WO (1) WO2003046361A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896546B1 (en) * 2006-01-23 2012-12-21 Peugeot Citroen Automobiles Sa DEVICE FOR RECYCLING EXHAUST GAS FROM A MOTOR VEHICLE
DE202008010119U1 (en) 2008-07-29 2009-05-07 Koltun, Mykhaylo Device for cleaning exhaust gases of turbojet engines
JP5730056B2 (en) * 2011-02-16 2015-06-03 ダイハツ工業株式会社 Exhaust gas recirculation system for internal combustion engines
US20140366852A1 (en) * 2013-06-17 2014-12-18 Caterpillar Inc. System and Method for Exhaust Gas Re-Circulation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271394B1 (en) * 1974-05-15 1978-03-24 France Etat
US5611203A (en) * 1994-12-12 1997-03-18 Cummins Engine Company, Inc. Ejector pump enhanced high pressure EGR system
SE521988C2 (en) * 1998-02-04 2003-12-23 Volvo Lastvagnar Ab Combustion engine arrangement

Also Published As

Publication number Publication date
WO2003046361A1 (en) 2003-06-05
SE520505C2 (en) 2003-07-15
AU2002365539A1 (en) 2003-06-10
DE10297478T5 (en) 2004-12-02

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Legal Events

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NUG Patent has lapsed