EP1020632A1 - Ansaugkrümmer mit Verbindungsmitteln zu einem Abgasrückführungskreislauf - Google Patents

Ansaugkrümmer mit Verbindungsmitteln zu einem Abgasrückführungskreislauf Download PDF

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Publication number
EP1020632A1
EP1020632A1 EP00400089A EP00400089A EP1020632A1 EP 1020632 A1 EP1020632 A1 EP 1020632A1 EP 00400089 A EP00400089 A EP 00400089A EP 00400089 A EP00400089 A EP 00400089A EP 1020632 A1 EP1020632 A1 EP 1020632A1
Authority
EP
European Patent Office
Prior art keywords
venturi
fresh air
tube
intake manifold
air intake
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.)
Granted
Application number
EP00400089A
Other languages
English (en)
French (fr)
Other versions
EP1020632B1 (de
Inventor
Jean-Pierre Dudemaine
Pierre-Louis Vernhes
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.)
Renault SAS
Original Assignee
Renault SAS
Renault Vehicules Industriels SA
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 Renault SAS, Renault Vehicules Industriels SA filed Critical Renault SAS
Publication of EP1020632A1 publication Critical patent/EP1020632A1/de
Application granted granted Critical
Publication of EP1020632B1 publication Critical patent/EP1020632B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10019—Means upstream of the fuel injection system, carburettor or plenum chamber
    • 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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake 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
    • 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
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/1045—Intake manifolds characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation

Definitions

  • the invention relates to an intake manifold.
  • the invention relates more particularly to a collector intake for fuel supply from a combustion engine motor vehicle, of the type which comprises a tubular conduit fresh air intake which opens into a block supplying cylinders with at least one outlet supply intended to be mounted opposite a duct of corresponding supply practiced in a cylinder head of the engine, and the type in which a gas inlet tube recycled exhaust from an exhaust system of the vehicle, opens out substantially radially into the tubular fresh air intake duct.
  • collectors intended to be assembled to a injection engine i.e. collectors which do not have no connection to any organ responsible for delivering fuel to the engine and which are only intended to supply the motor with oxidizer, especially in air
  • monobloc collectors in the general form of "air box" in which open at least one gas inlet tube recycled exhaust from an exhaust system of the vehicle, to improve engine performance.
  • air box in which open at least one gas inlet tube recycled exhaust from an exhaust system of the vehicle, to improve engine performance.
  • the tube exhaust gas inlet opens radially into a tubular intake manifold.
  • This type of collector is particularly advantageous compared to older intake systems, in which a simple intake manifold is coupled to an independent unit responsible for ensuring the mixing of air fresh from the atmosphere and exhaust gases recycled. These collectors are indeed much more compact.
  • the invention proposes a collector to ensure the constitution of a mixture homogeneous fresh air and recycled exhaust gases.
  • the invention proposes a collector exhaust of the type previously described, characterized in that a Venturi tube is arranged coaxially in the tubular fresh air intake duct, the upstream end of the Venturi tube substantially coinciding with one end upstream of the fresh air intake tubular duct, and in this that a downstream end of the Venturi tube, or Venturi neck, is arranged downstream of the exhaust gas inlet tube to delimit between the Venturi pass and the interior wall of the tubular air intake duct a suction area exhaust gases.
  • FIG. 1 the whole of a collector intake 10 made in accordance with the invention.
  • the intake manifold 10 has a duct tubular 12 for fresh air intake which opens into a block 14, box-shaped, supplying the cylinders which has power outputs 16 intended to be mounted opposite a supply duct (not represented) correspondent practiced in a breech (not shown) of the engine.
  • the intake manifold 10 has four outlets 16 but this provision is not restrictive of the invention and it could include a greater number or lower depending on whether it is an engine with more or fewer cylinders or a multiple engine intake valves per cylinder.
  • the intake manifold 10 is conventionally made by molding, which advantageously allows obtain it at low manufacturing costs.
  • the intake manifold 10 includes an inlet pipe 18 for recycled exhaust gases which we see the dotted line in Figure 1 and that we can see on the perspective view of figure 2.
  • the inlet tube 18 of recycled exhaust gas is arranged radially by relative to the axial direction of the tubular conduit 12 fresh air intake to allow air to be mixed fresh from the atmosphere and exhaust gases coming from an exhaust circuit (not shown) of vehicle, to improve engine performance when operation.
  • the power supply 14 of the cylinders is substantially shaped parallelepiped and has on an upper face 20 a orifice 22 which coincides with a downstream end 24 of the conduit tubular 12 for fresh air intake which extends axially parallel to the longitudinal direction of the power supply 14.
  • a Venturi tube 26 is arranged coaxially in the tubular inlet duct 12 fresh air.
  • An upstream end 28 of the Venturi tube 26 substantially coincides with an upstream end 30 of the conduit tubular 12 for fresh air intake, and a downstream end 32 of the venturi tube 26, also called Venturi neck 32, is arranged downstream of the exhaust gas inlet tube 18 to delimit between the neck 32 of the Venturi and a wall 34 of the tubular conduit 12 an annular zone 33 for suctioning exhaust gas.
  • the duct tubular 12 for fresh air intake is, in one plane transverse P located axially at the neck 32 of the Venturi, narrowed to a diameter slightly larger than the diameter outside of the Venturi pass 32.
  • the difference in diameter between the neck 32 of the Venturi and the tubular duct 12 for air intake fresh is at this level of the order of a few millimeters.
  • the exhaust gas inlet tube 18 being located downstream of the exhaust gas suction zone 33, these are mixed almost homogeneously with the air fresh from the atmosphere before continuing their path in the tubular duct 12 for fresh air intake direction of the admission block 14.
  • a room peripheral 36 is arranged coaxially to the Venturi tube 26 outside of it so as to define a buffer volume allowing relaxation at less partial recycled exhaust gases. This relaxation promotes uniform mixing when vacuumed in the suction zone 33 by the fresh air coming from the atmosphere flowing through the venturi tube creating a pressure difference to cause suction in the area 33.
  • the power supply comprises, in one of the lateral faces 54, the outlets power supply 16 previously described, which are arranged opposite the supply conduits 56 of a cylinder head 58 of the associated thermal engine.
  • At least one of the faces side of the supply pitcher 14 of the intake manifold 10, here the side face 54, has holes 60 intended allow the passage of fixing screws 62 to fix the intake manifold 10 to the cylinder head 58 of the engine.
  • a second side face 64 of the intake manifold 10 also has holes 66 which are intended for allow the passage of screws 68 which also cross the face lateral 64 to allow the collector to be fixed supply 10 to the cylinder head 58 of the associated thermal engine.
  • Figure 2 illustrates the particular assembly of the tube of Venturi 26 between the upstream end 30 of the tubular conduit 12 and a flange 31 for connection to the vehicle radiator.
  • the end 30 of the tubular conduit 12 admission comprises a housing 70 in which is received the Venturi tube 26.
  • the housing 70 has a groove 71 which receives an annular flange 72 which extends radially to from the upstream end 28 of the Venturi tube (26).
  • the groove 71 of housing 70 is substantially of dimensions corresponding to the collar 72 so as to immobilize transversely and axially the Venturi tube 26 between the upstream end 30 of the tubular conduit 12 and a flange 31 of connection to a vehicle radiator.
  • the flange 31 for connection to the vehicle radiator is fixed on the end 30 of the tubular inlet duct 12, by example by means of screws (not shown) which allow to exert an axial clamping force on both sides transverse of the flange 72 of the Venturi tube 26, and of thus achieve a good seal.
  • This sealing can advantageously be completed by a flat annular seal (not shown) matching the shape of the collar 72 of the Venturi tube 26.
  • the intake manifold 10 as shown consists of three easy assembly parts, which guarantees its low manufacturing cost and perfect tightness both fresh air than exhaust gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP00400089A 1999-01-15 2000-01-14 Ansaugkrümmer mit Verbindungsmitteln zu einem Abgasrückführungskreislauf Expired - Lifetime EP1020632B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9900371 1999-01-15
FR9900371A FR2788565B1 (fr) 1999-01-15 1999-01-15 Collecteur d'admission comportant des moyens de raccordement a un circuit de recyclage des gaz d'echappement

Publications (2)

Publication Number Publication Date
EP1020632A1 true EP1020632A1 (de) 2000-07-19
EP1020632B1 EP1020632B1 (de) 2004-06-23

Family

ID=9540879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00400089A Expired - Lifetime EP1020632B1 (de) 1999-01-15 2000-01-14 Ansaugkrümmer mit Verbindungsmitteln zu einem Abgasrückführungskreislauf

Country Status (4)

Country Link
EP (1) EP1020632B1 (de)
DE (1) DE60011683T2 (de)
ES (1) ES2223411T3 (de)
FR (1) FR2788565B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018773A1 (en) * 2000-08-30 2002-03-07 Varivent Innovations Ab Arrangement for mixing a first and a second gas flow
US6439212B1 (en) 2001-12-19 2002-08-27 Caterpillar Inc. Bypass venturi assembly and elbow with turning vane for an exhaust gas recirculation system
WO2002070888A1 (en) * 2001-03-02 2002-09-12 Volvo Lastvagnar Ab Apparatus for supply of recirculated exhaust gas
US6640542B2 (en) 2001-12-20 2003-11-04 Caterpillar Inc Bypass venturi assembly with single shaft actuator for an exhaust gas recirculation system
US6659092B2 (en) 2001-12-20 2003-12-09 Caterpillar Inc Bypass assembly with annular bypass venturi for an exhaust gas recirculation system
FR2861137A1 (fr) * 2003-10-16 2005-04-22 Renault Sa Dispositif et procede de preparation d'un melange homogene de fluides gazeux pour moteur
US7543600B2 (en) 2003-07-07 2009-06-09 Varivent Innovations Ab Arrangement for mixing a first and second gas flow with downstream control
EP2711533A1 (de) * 2012-09-25 2014-03-26 Bayerische Motoren Werke Aktiengesellschaft Verbrennungsmotor
ITRM20130103A1 (it) * 2013-02-22 2014-08-23 Piaggio & C Spa Sistema di aspirazione dell'aria e di ricircolo dei gas di scarico per un motore diesel
CN104047780A (zh) * 2014-06-25 2014-09-17 中国第一汽车股份有限公司无锡油泵油嘴研究所 一种高增压发动机进气道及设计方法
CN106015121A (zh) * 2016-06-21 2016-10-12 武汉理工大学 空气射流式通风机

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011056896A1 (de) * 2011-12-22 2013-06-27 Leibniz-Institut Für Neue Materialien Gemeinnützige Gmbh Verfahren zum Herstellen und Verwendung von Graphen auf polykristallinem Siliziumcarbid
US10316803B2 (en) 2017-09-25 2019-06-11 Woodward, Inc. Passive pumping for recirculating exhaust gas
US10995705B2 (en) 2019-02-07 2021-05-04 Woodward, Inc. Modular exhaust gas recirculation system
CN213175878U (zh) 2020-01-08 2021-05-11 伍德沃德有限公司 排气气体再循环混合器和发动机系统
US11215132B1 (en) 2020-12-15 2022-01-04 Woodward, Inc. Controlling an internal combustion engine system
US11174809B1 (en) 2020-12-15 2021-11-16 Woodward, Inc. Controlling an internal combustion engine system
AT524259A1 (de) * 2021-06-17 2022-04-15 Avl List Gmbh Einlasssammler für eine brennkraftmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662722A (en) * 1970-04-22 1972-05-16 Chrysler Corp Cool exhaust recycling
EP0732490A2 (de) * 1995-03-14 1996-09-18 Cummins Engine Company, Inc. Turboaufgeladene Dieselbrennkraftmaschine
EP0857870A2 (de) * 1997-02-11 1998-08-12 C.R.F. Società Consortile per Azioni Dieselbrennkraftmaschine mit Abgasrückführung und Mischvorrichtung für rückgeführte Gase

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662722A (en) * 1970-04-22 1972-05-16 Chrysler Corp Cool exhaust recycling
EP0732490A2 (de) * 1995-03-14 1996-09-18 Cummins Engine Company, Inc. Turboaufgeladene Dieselbrennkraftmaschine
EP0857870A2 (de) * 1997-02-11 1998-08-12 C.R.F. Società Consortile per Azioni Dieselbrennkraftmaschine mit Abgasrückführung und Mischvorrichtung für rückgeführte Gase

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018773A1 (en) * 2000-08-30 2002-03-07 Varivent Innovations Ab Arrangement for mixing a first and a second gas flow
US7036529B2 (en) 2000-08-30 2006-05-02 Varivent Innovations Ab Arrangement for mixing a first and a second gas flow
US7389770B2 (en) 2001-03-02 2008-06-24 Volvo Lastvagnar Ab Apparatus for supply of recirculated exhaust gas
WO2002070888A1 (en) * 2001-03-02 2002-09-12 Volvo Lastvagnar Ab Apparatus for supply of recirculated exhaust gas
US6439212B1 (en) 2001-12-19 2002-08-27 Caterpillar Inc. Bypass venturi assembly and elbow with turning vane for an exhaust gas recirculation system
US6640542B2 (en) 2001-12-20 2003-11-04 Caterpillar Inc Bypass venturi assembly with single shaft actuator for an exhaust gas recirculation system
US6659092B2 (en) 2001-12-20 2003-12-09 Caterpillar Inc Bypass assembly with annular bypass venturi for an exhaust gas recirculation system
US7543600B2 (en) 2003-07-07 2009-06-09 Varivent Innovations Ab Arrangement for mixing a first and second gas flow with downstream control
FR2861137A1 (fr) * 2003-10-16 2005-04-22 Renault Sa Dispositif et procede de preparation d'un melange homogene de fluides gazeux pour moteur
EP2711533A1 (de) * 2012-09-25 2014-03-26 Bayerische Motoren Werke Aktiengesellschaft Verbrennungsmotor
ITRM20130103A1 (it) * 2013-02-22 2014-08-23 Piaggio & C Spa Sistema di aspirazione dell'aria e di ricircolo dei gas di scarico per un motore diesel
WO2014128026A1 (en) * 2013-02-22 2014-08-28 Piaggio & C. S.P.A. An air suction and exhaust gases recirculation system for a diesel engine
CN105074190A (zh) * 2013-02-22 2015-11-18 比亚乔公司 用于柴油机的空气抽吸和废气再循环系统
CN105074190B (zh) * 2013-02-22 2017-10-24 比亚乔公司 用于柴油机的空气抽吸和废气再循环系统
CN104047780A (zh) * 2014-06-25 2014-09-17 中国第一汽车股份有限公司无锡油泵油嘴研究所 一种高增压发动机进气道及设计方法
CN106015121A (zh) * 2016-06-21 2016-10-12 武汉理工大学 空气射流式通风机

Also Published As

Publication number Publication date
FR2788565A1 (fr) 2000-07-21
DE60011683T2 (de) 2005-06-30
FR2788565B1 (fr) 2001-02-09
ES2223411T3 (es) 2005-03-01
EP1020632B1 (de) 2004-06-23
DE60011683D1 (de) 2004-07-29

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