EP0565410B1 - Integrierte Rampenvorrichtung für die Abgasrückführung einer Brennkraftmaschine - Google Patents

Integrierte Rampenvorrichtung für die Abgasrückführung einer Brennkraftmaschine Download PDF

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Publication number
EP0565410B1
EP0565410B1 EP93400837A EP93400837A EP0565410B1 EP 0565410 B1 EP0565410 B1 EP 0565410B1 EP 93400837 A EP93400837 A EP 93400837A EP 93400837 A EP93400837 A EP 93400837A EP 0565410 B1 EP0565410 B1 EP 0565410B1
Authority
EP
European Patent Office
Prior art keywords
manifold
engine
support
aforesaid
exhaust
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.)
Expired - Lifetime
Application number
EP93400837A
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English (en)
French (fr)
Other versions
EP0565410A1 (de
Inventor
Christian Chapelle
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen 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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0565410A1 publication Critical patent/EP0565410A1/de
Application granted granted Critical
Publication of EP0565410B1 publication Critical patent/EP0565410B1/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
    • F02M35/10078—Connections of intake systems to the engine
    • F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
    • 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
    • F02M35/10242—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
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/16—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system with EGR valves located at or near the connection to the 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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
    • F02M26/44—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which a main EGR passage is branched into multiple passages

Definitions

  • the present invention relates to a device for recycling the exhaust gases of an internal combustion engine, and more particularly of a diesel engine.
  • the gases to be recycled are brought from at least one exhaust duct to a ramp forming a recycling manifold, mounted on the engine and connected separately to each of the fresh gas intake ducts arranged or formed in the cylinder head of the engine.
  • the present invention aims to remedy the drawbacks stated above, by proposing a compact and economical device to produce, in which the ramp is designed in a simple manner and able to withstand the mechanical stresses generated in the engine.
  • the subject of the invention is a device for recycling the exhaust gases of an internal combustion engine, of the type in which a ramp connected to the engine exhaust is connected separately to several intake ducts formed in the cylinder head of this engine, characterized in that the ramp came integrally with a support which comprises camshaft bearing elements and which covers the cylinder head, sections of conduit extending through the support in the extension of the cylinder head intake ducts.
  • each of the abovementioned sections of conduit is respectively connected to the ramp by a hole internal aligned with a hole opening on the outside of the ramp and closed by a plug.
  • each internal hole of the ramp has its own diameter and chosen to optimize the distribution of the recycled exhaust gases between the various engine intake ducts.
  • the aforementioned elements are camshaft bearing caps, integrally formed with the aforementioned support.
  • the device is also characterized in that the ramp is connected to an exhaust manifold via a distribution valve.
  • the invention is characterized in that the aforementioned distribution valve is connected to the ramp by means of a slightly flexible tube connected substantially in the middle of the ramp to a cylindrical connection integrated in the support.
  • an internal combustion engine 1 such as a diesel engine for example for a motor vehicle.
  • the reference numeral 11 designates the cylinder head of the engine 1.
  • the cylinder head 11 is a foundry piece inside which are formed or arranged four intake ducts 12 and four exhaust ducts 14 of the engine 1.
  • each of the cylinders (not shown) of the engine 1 communicates with one of the intake ducts 12 and one of the exhaust ducts 14, in order to respectively connect this cylinder to a gas intake system 20 " fresh "and to an exhaust system 40 for the burnt gases inside this cylinder.
  • the engine 1 includes a device 60 for recycling the burnt gases coming from the exhaust system 40.
  • the device 60 essentially consists of a manifold forming a manifold 65 for the gases to be recycled, which is connected on the one hand to the 'exhaust 40 and on the other hand to the intake system 20 of the engine 1.
  • the ramp 65 is in fact connected separately to each of the intake ducts 12, so as to distribute the gases to be recycled between the different cylinders of the engine 1 .
  • the ramp 65 has come integrally with a support 50 for bearing elements 52, capable of guiding a camshaft, of which only the longitudinal axis of rotation X is visible in FIG. 1.
  • the support 50 is a foundry part obtained by pressure casting of a metallic material such as aluminum, in which the elements 52 are bearing caps also coming from foundry.
  • the support 50 defines two parallel joint planes 50a, 50b which extend over substantially the entire length (along the axis X) of the motor 1.
  • the joint plane 50b covers and comes to bear against a corresponding joint plane of the cylinder head 11.
  • the support 50 in which the ramp 65 is integrated constitutes a cylinder head cover on the upper joint plane 50a from which a cover 13 is mounted.
  • the recycling ramp 65 defines in the support 50 an elongated cavity 65a whose cross section is substantially rectangular and which extends laterally along the axis X, over almost the entire length of the motor 1.
  • a section of conduit 62 which extends perpendicular to the planes 50a, 50b is formed in the support 50.
  • a section of conduit 62 passes through the support 50 in the extension of each of the conduits intake 12 of the cylinder head 11.
  • These sections 62 are generally parallel and connect each of the conduits 12 to the intake system 20 which is mounted on the cover 13.
  • each of these sections of conduit 62 is respectively connected to the internal cavity 65a of the ramp by an internal hole 63 arranged in alignment or opposite a corresponding through hole 64.
  • each of the holes 64 opens to the outside of the ramp 65 and is formed by the same cutting tool as the corresponding internal hole 63.
  • Each of the through holes 64 is hermetically sealed by a plug 66, for example force fitted.
  • the internal holes 63 may have different diameters.
  • the diameter - and therefore the cross-section - of each of the holes 63 is determined as a function of the specific characteristics of the engine and of the gas circulation in the device 60.
  • the ramp 65 projects from the lateral edge of the cylinder head 11 (between the joint planes 50a, 50b).
  • the latter has substantially in its middle along the direction of the axis X, a cylindrical connection 69 formed integrally with the ramp 65 and extending projecting from the lower joint plane 50b of the support 50.
  • a slightly flexible tube 67 by example made of stainless steel is fixed on the fitting 69 in order to connect the internal cavity 65a to a valve of distribution 68.
  • This valve 68 makes it possible to direct an appropriate quantity of exhaust gas to be recycled to the device 60. To do this, the valve 68 is connected to an exhaust manifold 48 into which the four conduits 14 of the cylinder head 11 open.
  • the tube 67 which connects the ramp 65 and the distribution valve 68 has bellows by which the shape of the tube 67 can be adapted to the relative position of the connector 69 of the ramp and of the valve 68.

Claims (7)

  1. Vorrichtung zur Rückführung der Abgase eines Verbrennungsmotors (1), derjenigen Gattung, bei welcher eine an den Auspuff (40) des Motors (1) angeschlossene Rampe (65) mit mehreren in dem Zylinderkopf (11) dieses Motors gebildeten Einlasskanälen (12) getrennt verbunden ist, dadurch gekennzeichnet, dass die Rampe (65) werkstoffmässig einstückig mit einer Halterung (50) gebildet ist, welche Elemente (52) von Nockenwellenlagern aufweist und die den Zylinderkopf (11) abdeckt, wobei Kanalabschnitte (62) sich durch die Halterung 50 in der Verlängerung der Einlasskanäle (12) des Zylinderkopfes (11) erstrecken.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jeder der vorgenannten Kanalabschnitte (62) mit der Rampe (65) jeweils durch ein inneres Loch (63) das mit einem ausmündenden Loch (64), das die Rampe (65a) mit der Aussenseite verbindet, fluchtend ausgerichtet ist und das durch einen Stofpen (66) verschlossen ist, verbunden ist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass jedes innere Loch (63) der Rampe einen eigenen und zur Optimisierung der Verteilung der zwischen den verschiedenen Einlasskanälen (12) des Motors (1) rückgeführten Abgase gewählten Duchmesser hat.
  4. Vorrichtung nach einem der Anspruüche 1 bis 3, dadurch gekennzeichnet, dass die vorgenannte Halterung (50) ein unter Druck gegossenes Gußstück ist.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die vorgenannten Elemente (52) mit der vorgenannten Halterung (50) werkstoffmässig einstückig gebildete Deckel von Nockenwellenlagern sind.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Rampe (65) an ein Auspuffsammelrohr (48) über ein Ventil (68) zur Verteilung der Abgase angeschlossen ist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das vorgenannte Verteilungsventil (68) mit der Rampe (65) mit Hilfe eines etwa in der Mitte der Rampe (65) mit einem in der Halterung (50) eingegliederten zylindrischen Anschlußstück (69) verbundenen leicht biegsamen Rohres verbunden ist.
EP93400837A 1992-04-09 1993-03-31 Integrierte Rampenvorrichtung für die Abgasrückführung einer Brennkraftmaschine Expired - Lifetime EP0565410B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9204363 1992-04-09
FR9204363A FR2689936B1 (fr) 1992-04-09 1992-04-09 Dispositif a rampe integree pour le recyclage des gaz d'echappement d'un moteur a combustion interne.

Publications (2)

Publication Number Publication Date
EP0565410A1 EP0565410A1 (de) 1993-10-13
EP0565410B1 true EP0565410B1 (de) 1995-10-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400837A Expired - Lifetime EP0565410B1 (de) 1992-04-09 1993-03-31 Integrierte Rampenvorrichtung für die Abgasrückführung einer Brennkraftmaschine

Country Status (3)

Country Link
EP (1) EP0565410B1 (de)
DE (1) DE69300649T2 (de)
FR (1) FR2689936B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069894B2 (en) 2004-04-24 2006-07-04 Mann & Hummel Gmbh Intake manifold having intake pipes linked by transverse acoustic synchronization channels with exhaust gas recirculation inlets

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445490A1 (de) * 1994-12-20 1996-06-27 Audi Ag Vorrichtung zur Abgasentgiftung an einer Brennkraftmaschine
DE19701873C1 (de) * 1997-01-21 1998-06-04 Daimler Benz Ag Halterung einer Abgasrückführleitung am Motorgehäuse einer Brennkraftmaschine
DE10354129A1 (de) * 2003-11-19 2005-06-23 Mahle Filtersysteme Gmbh Sauganlage für eine Brennkraftmaschine
JP4074860B2 (ja) * 2004-03-19 2008-04-16 株式会社クボタ 縦型多気筒ディーゼルエンジン
DE102004015487A1 (de) * 2004-03-26 2005-10-13 Deutz Ag Brennkraftmaschine mit Abgasrückführung
DE102005059007A1 (de) * 2005-12-08 2007-07-05 Deutz Ag Abgasrückführung bei einer luftgekühlten Brennkraftmaschine
CN101646849B (zh) 2007-03-23 2011-10-05 贝洱两合公司 增压流体吸入模块和内燃机
EP2330320A3 (de) 2007-10-31 2011-11-02 U-Shin Ltd. Motorbetriebener Aktuator
CN109372670B (zh) * 2018-12-21 2023-09-19 潍柴动力股份有限公司 一种集成式管路与一种发动机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0350283Y2 (de) * 1985-04-09 1991-10-28
KR900000143B1 (ko) * 1985-10-04 1990-01-20 마쯔다 가부시기가이샤 V형 엔진의 흡기장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069894B2 (en) 2004-04-24 2006-07-04 Mann & Hummel Gmbh Intake manifold having intake pipes linked by transverse acoustic synchronization channels with exhaust gas recirculation inlets

Also Published As

Publication number Publication date
DE69300649T2 (de) 1996-04-18
DE69300649D1 (de) 1995-11-23
EP0565410A1 (de) 1993-10-13
FR2689936A1 (fr) 1993-10-15
FR2689936B1 (fr) 1994-07-08

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