EP1764500A1 - Luftansaugkrümmer mit AGR-Kreislauf und Brennkraftmaschine mit einem solchen Luftansaugkrümmer - Google Patents

Luftansaugkrümmer mit AGR-Kreislauf und Brennkraftmaschine mit einem solchen Luftansaugkrümmer Download PDF

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Publication number
EP1764500A1
EP1764500A1 EP06300946A EP06300946A EP1764500A1 EP 1764500 A1 EP1764500 A1 EP 1764500A1 EP 06300946 A EP06300946 A EP 06300946A EP 06300946 A EP06300946 A EP 06300946A EP 1764500 A1 EP1764500 A1 EP 1764500A1
Authority
EP
European Patent Office
Prior art keywords
chamber
intake manifold
exhaust gas
inlet
engine
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.)
Withdrawn
Application number
EP06300946A
Other languages
English (en)
French (fr)
Inventor
Nicolas Deleforterie
Philippe Violante
Rémy Priou
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
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 filed Critical Renault SAS
Publication of EP1764500A1 publication Critical patent/EP1764500A1/de
Withdrawn legal-status Critical Current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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • 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
    • F02M26/21—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 with EGR valves located at or near the connection 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
    • 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
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10288—Air intakes combined with another engine part, e.g. cylinder head cover or being cast in one piece with the exhaust manifold, cylinder head or engine block
    • 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
    • F02M35/112—Intake manifolds for engines with cylinders all in one line

Definitions

  • the present invention relates to an intake distributor of an internal combustion engine, preferably a diesel type engine.
  • the internal combustion engines comprise a cylinder head inside which is the combustion chamber provided with cylinders, and on which are fixed an air intake distributor and a exhaust gas exhaust manifold.
  • the diesel-type internal combustion engines also include an exhaust gas recirculation circuit called the Exhausted Gas Recirculation (EGR) circuit.
  • EGR Exhausted Gas Recirculation
  • the exhaust gas recirculation circuit recovers a portion of exhaust gas from the exhaust manifold and redirects it after cooling into the air intake manifold. These recirculating exhaust gases are thus burnt in the cylinders.
  • This recycling by recirculation of a portion of the exhaust gas reduces the release of pollutant components of the exhaust gas into the atmosphere.
  • Such an exhaust gas recirculation circuit comprises a heat exchanger for cooling the exhaust gas, a valve for regulating the flow of these recirculating exhaust gases and the ducts necessary for the transport of the recirculating exhaust gas. .
  • valve and the heat exchanger are generally fixed to the cylinder head or the cylinder block by fixing lugs and / or crutches, which increases the complexity and the assembly time of the engine.
  • legs or mounting brackets are subjected to significant vibration of the engine which increases the noise of the engine and may cause their rupture.
  • the present invention proposes a new intake distributor which makes it possible to dispense with the legs or support legs of the various elements of the exhaust gas recirculation circuit.
  • an intake distributor of an internal combustion engine which comprises a chamber ensuring the connection between several parts of an exhaust gas recirculation circuit, this chamber having an inlet intended to be connected directly to an exhaust gas recirculation channel, an outlet intended to be connected directly to the inlet of a heat exchanger and, between the inlet and the outlet, a regulating opening for the introduction into the chamber of the mechanism of a valve.
  • the chamber which is also part of the exhaust gas recirculation circuit serves as a support for fixing the elements of said recirculation circuit.
  • valve and the heat exchanger which are directly connected to said inlet distributor chamber are more resistant to vibration of the engine.
  • the intake manifold according to the invention, it is possible to reduce the number of parts of the exhaust gas recirculation circuit and to make the assembly consisting of the intake manifold and the recirculation circuit more compact .
  • a portion of the exhaust gas recirculation circuit is integrated with the intake distributor, which reduces the assembly time, the cost and the mass of the engine.
  • the invention also relates to an internal combustion engine comprising an intake distributor as described above.
  • FIGS 1 and 2 there is shown an air intake manifold 7 of an internal combustion engine.
  • This air intake manifold 7 is fixed on a cylinder head (not shown) to open into the combustion chamber defined inside four cylinders (not shown).
  • It comprises an inlet 70 through which fresh air coming from the atmosphere and substantially aligned outlet orifices 79 which open into the cylinders of the combustion chamber.
  • a mounting bracket 79A for fixing the inlet distributor 7 to the cylinder head.
  • the fresh air injected by the intake manifold is mixed with the fuel and the mixture of fresh air and fuel is burned in the cylinders.
  • an exhaust manifold which is fixed on the cylinder head and into which the cylinders open.
  • This exhaust manifold includes exhaust ducts (not shown) vis-à-vis the cylinders to convey the exhaust gas to an exhaust line (not shown).
  • the internal combustion engine also comprises a recirculation circuit 9 of the exhaust gas.
  • the intake distributor 7 of the internal combustion engine comprises a chamber 8 ensuring the connection between several parts of the recirculation circuit 9 of the exhaust gas.
  • This junction chamber 8 constitutes an additional part of the intake distributor 7 which has just formed with it.
  • This junction chamber 8 is also part of the recirculation circuit 9 of the exhaust gas.
  • the inlet 84 intended to be connected directly to a recirculation channel (not shown) of the exhaust gas.
  • the inlet of the chamber 8 is formed of a pipe 84 whose mouth, situated at one end of the row formed by the outlet orifices 79, is bordered by a fixing support 84A intended to receive the end of an exhaust gas recirculation channel.
  • the fixing support 84A bordering the mouth of the inlet pipe 84 of the chamber 8 extends in the extension of the fixing brackets 79A surrounding the outlet orifices 79 of the inlet distributor 7.
  • the fixing support 84A and the fixing brackets 79A form a single support which surrounds the outlet orifices 79 and the mouth of the tubing 84.
  • the chamber 8 is located on an outer edge of the inlet distributor 7, near the cylinder head so that the mouth of the inlet pipe 84 of the chamber 8 is positioned vis-à-vis the recirculation channel exhaust gas.
  • the exhaust gas recirculation channel is formed in the cylinder head.
  • Such an exhaust gas recirculation channel integrated into the cylinder head allows for a more compact engine.
  • the chamber 8 also has an outlet intended to be connected directly to the inlet of a heat exchanger 92.
  • the outlet of the chamber is formed of a pipe 82 whose mouth is bordered by a fixing support 82A for receive the heat exchanger 92.
  • a duct 94 is provided which makes it possible to connect this heat exchanger 92 to the inlet of the intake circuit 7.
  • the heat exchanger 92 also includes a cooling circuit which includes an inlet channel 95 of a coolant and an outlet channel 96 of the coolant. This cooling circuit passes through the heat exchanger 92 and makes it possible to cool the exhaust gases that pass through this heat exchanger 92.
  • the chamber 8 comprises a regulating opening for the introduction into the chamber 8 of the mechanism of a regulating valve 91.
  • the regulating opening of the chamber 8 is bordered by a fixing support 91 A intended to receive the regulation valve 91.
  • the fixing support 91 A on which the valve 91 is fixed is here situated in the upper part of the chamber 8.
  • the mechanism of the valve 91 makes it possible to regulate the flow of the recirculating exhaust gas in the recirculation circuit 9 of the exhaust gas.
  • the chamber 8 of the inlet distributor 7 according to the invention which serves to fix the various elements of the exhaust gas recirculation circuit 9 and which constitutes a part of this recirculation circuit, makes it possible to have a compact motor.
  • the operation of the motor is as follows.
  • the exhaust gases from the combustion of the mixture of fresh gas and fuel in the cylinders are discharged to the exhaust manifold. Part of the exhaust gas is redirected to the recirculation circuit 9 of the exhaust gas through the recirculation channel.
  • the recirculating exhaust gas then passes through the inlet pipe 84 of the junction chamber 8.
  • the opening of the valve 91 by means of its mechanism introduced into the chamber 8, makes it possible to circulate the recirculation exhaust gas in the outlet pipe 82, in the direction of the heat exchanger 92.
  • the recirculating exhaust gases are cooled by means of the coolant circulating in the inlet ducts 95 and the outlet ducts 96 of the cooling circuit. cooling. Then, at the outlet of this heat exchanger 92, the recirculation exhaust gas is conveyed by the duct 94 connected to the inlet of the intake circuit 7.
  • the recirculating exhaust gas is then mixed with the fresh air admitted by the inlet 70 of the inlet distributor 7 and are directed towards the outlet orifices 79 of the inlet distributor 7. Beyond these orifices of At outlet 79, the mixture of fresh air and recirculating exhaust gas is admitted into the cylinders of the cylinder head. The recirculating exhaust gases are then burnt in the cylinders. Then the exhaust gases resulting from this combustion are discharged to the exhaust manifold and the exhaust line, while a part of these exhaust gases is removed for recycling into the recirculation circuit 9 of the exhaust gases. 'exhaust.
  • the chamber 8 of the inlet distributor can also serve as a mounting bracket for other parts.
  • it can serve as a support for fixing an oil gauge 99 which, here, in FIGS. 1 and 2, is fixed by a fastening lug 99A to the heat exchanger 92.

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)
EP06300946A 2005-09-16 2006-09-13 Luftansaugkrümmer mit AGR-Kreislauf und Brennkraftmaschine mit einem solchen Luftansaugkrümmer Withdrawn EP1764500A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0509473A FR2891020B1 (fr) 2005-09-16 2005-09-16 Repartiteur d'admission integrant une partie d'un circuit de recirculation des gaz d'echappement et moteur a combustion interne comprenant un tel repartiteur d'admission

Publications (1)

Publication Number Publication Date
EP1764500A1 true EP1764500A1 (de) 2007-03-21

Family

ID=36590481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06300946A Withdrawn EP1764500A1 (de) 2005-09-16 2006-09-13 Luftansaugkrümmer mit AGR-Kreislauf und Brennkraftmaschine mit einem solchen Luftansaugkrümmer

Country Status (2)

Country Link
EP (1) EP1764500A1 (de)
FR (1) FR2891020B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506874A (en) * 2012-10-10 2014-04-16 Gm Global Tech Operations Inc I.c. engine intake air module with bypassable air cooler and EGR distribution pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375896A2 (de) * 2002-06-25 2004-01-02 Pierburg GmbH Luftansaugkanalsystem
DE10341393B3 (de) * 2003-09-05 2004-09-23 Pierburg Gmbh Luftansaugkanalsystem für eine Verbrennungskraftmaschine
DE10344217A1 (de) * 2003-09-22 2005-04-14 Mahle Filtersysteme Gmbh Frischgas führender Abschnitt einer Frischgasanlage
EP1529952A2 (de) * 2003-11-07 2005-05-11 Hitachi, Ltd. Elektronisches System zur Steuerung der Abgasrezirkulation
EP1533512A2 (de) * 2003-11-19 2005-05-25 MAHLE Filtersysteme GmbH Sauganlage für eine Brennkraftmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375896A2 (de) * 2002-06-25 2004-01-02 Pierburg GmbH Luftansaugkanalsystem
DE10341393B3 (de) * 2003-09-05 2004-09-23 Pierburg Gmbh Luftansaugkanalsystem für eine Verbrennungskraftmaschine
DE10344217A1 (de) * 2003-09-22 2005-04-14 Mahle Filtersysteme Gmbh Frischgas führender Abschnitt einer Frischgasanlage
EP1529952A2 (de) * 2003-11-07 2005-05-11 Hitachi, Ltd. Elektronisches System zur Steuerung der Abgasrezirkulation
EP1533512A2 (de) * 2003-11-19 2005-05-25 MAHLE Filtersysteme GmbH Sauganlage für eine Brennkraftmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506874A (en) * 2012-10-10 2014-04-16 Gm Global Tech Operations Inc I.c. engine intake air module with bypassable air cooler and EGR distribution pipe

Also Published As

Publication number Publication date
FR2891020A1 (fr) 2007-03-23
FR2891020B1 (fr) 2007-11-23

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