EP2622201B1 - Funktionelles luftzuführmodul mit einer einspritzverteilerleiste - Google Patents

Funktionelles luftzuführmodul mit einer einspritzverteilerleiste Download PDF

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Publication number
EP2622201B1
EP2622201B1 EP11773776.7A EP11773776A EP2622201B1 EP 2622201 B1 EP2622201 B1 EP 2622201B1 EP 11773776 A EP11773776 A EP 11773776A EP 2622201 B1 EP2622201 B1 EP 2622201B1
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EP
European Patent Office
Prior art keywords
attachment
plate
functional module
module according
support
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Active
Application number
EP11773776.7A
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English (en)
French (fr)
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EP2622201A1 (de
Inventor
Jérôme Roussel
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.)
Sogefi Air and Cooling SAS
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Systemes Moteurs SAS
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Publication of EP2622201A1 publication Critical patent/EP2622201A1/de
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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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/50—Arrangement of fuel distributors, e.g. with means for supplying equal portion of metered fuel to injectors
    • 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
    • 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
    • F02M35/10216—Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws

Definitions

  • the present invention relates to the field of equipment and accessories for internal combustion engines, especially those powered by high pressure injection ramps.
  • the invention more particularly relates to a functional module for supplying air to such a motor incorporating an injection ramp.
  • the various pistons are fed by a common injection rail, the latter is often located near the inlet distributor or a similar power supply member (compressor, ... ) in the immediate environment of the engine, these two accessories must further be rigidly attached to the engine block.
  • the two accessories are interconnected by a quick coupling.
  • an indirect fixation of the injection rail on the engine block through the distributor is necessarily less rigid and less resistant than a direct attachment and additionally additionally solves at least a part of said distributor, as well as its points. of fixation.
  • This document discloses a functional module integrating an intake distributor with an integrated mounting plate and connection, an injection rail and a retention piece for blocking the ramp.
  • the distributor participates positively in maintaining the injection rail via the retention piece and thus has a conformation and a structural resistance adapted to fulfill this additional function.
  • the document EP 1 240 423 discloses a combined distributor / injection rail assembly, wherein said ramp is provided with annular extensions in the form of blanks each enclosing a manifold manifold. These blanks formed on the ramp are provided with support feet for the passage of the fastening screws, which all coincide with the fixing holes of the tubing connection plate and which come into pressure contact on said plate at the said orifices during assembly on the engine block.
  • flanks are made in a single independent piece, devoid of support lugs, coming to cover the connecting plate of the tubes, close from above the receiving housing of the ramp in the plate and fix it on the cylinder head under pressure to seal.
  • the set of attachment points of the tubing plate and the flanks are merged and they are not in direct support on the engine block, but rely on the platen they solidarize and pinch, with the help also of the ramp, against said engine block.
  • these known embodiments impose a forced configuration for the tubing connection plate in order to achieve a total coincidence between support feet of the flanks and fixing holes of the tubing plate. This may result in implantation of the attachment sites at the connection stage which is not optimized in terms of stresses and stresses, especially since this plate is assembled with the intake manifold, whose positioning in the space of the main body can be offset or offset from that of the platen.
  • an imposed separation of the plate of the pipes during a separation or disassembly of the holding part may not be desirable in certain constructive configurations and be even penalizing, for example in terms of time wasted, difficulties when reassembling and / or sealing.
  • the document EP 1 270 917 also presents a solution for the combined attachment of a plate of an intake distributor and an injection rail, in which the ramp ensures the retention and fixing of the plate.
  • the injection manifold has a complex structure and must be adapted to withstand the stresses resulting from these additional retention and fastening functions.
  • the distributor consists of two parts, namely a lower part forming the mounting plate and connection and an upper part forming the body of the distributor as such.
  • the retention of the injection rail is carried out directly and only by the body of the distributor, the plate providing support supports for said ramp (no direct attachment of the latter on the cylinder head).
  • the splitter must therefore have a shape and a structural strength adapted to this additional function.
  • the present invention is intended to overcome at least some, preferably all the aforementioned drawbacks, and more particularly to provide a rigid fixing solution for the injection rail, not soliciting the body of the distributor and allowing some constructive freedom.
  • the subject of the invention is a functional module according to claim 1.
  • FIGS. 1 to 3 show a functional module 1 comprising, on the one hand, a plate 2 for fastening and sealing connection to the cylinder head of an internal combustion engine, incorporating portions 3 of air intake pipes optionally provided with regulating means flow (for example in the form of valves) at their outlet ports 3 ', and secondly, a high pressure injection manifold 4 in the form of a duct 5 provided with several injectors 5'.
  • a functional module 1 comprising, on the one hand, a plate 2 for fastening and sealing connection to the cylinder head of an internal combustion engine, incorporating portions 3 of air intake pipes optionally provided with regulating means flow (for example in the form of valves) at their outlet ports 3 ', and secondly, a high pressure injection manifold 4 in the form of a duct 5 provided with several injectors 5'.
  • the conduit 5 of the injection rail 4 is provided with support and fixing feet 6, 6 'intended to bear directly on the cylinder head 7, in particular at a first group of points 8 of the latter, and, the plate 2 is provided, on the one hand, primary attachment sites 9 intended to cooperate with a second group of attachment points 8 'of the cylinder head 7, and secondly secondary fixation sites 9 'corresponding to at least some of the attachment points 8 of the first group of the yoke 7, said secondary attachment sites 9' of the plate 2 being intended to be positioned over at least some of the support and fixing feet 6, 6 'of the injection rail 4.
  • the invention leads to a direct attachment of the injection manifold 4 on the yoke 7, without intermediate piece and without soliciting the conduit 5 for fixing the plate 2, or the body of the distributor for fixing the leads 5 or ramp.
  • the plate is preferably made in the form of a separate part on which the body of the splitter is fixed.
  • the injection manifold 4 comprises at least two supporting and fixing feet 6, 6 'attached or formed on the conduit 5, for example by screwing, interlocking with cooperation of shapes, welding, gluing or overmoulding, being mutually spaced along the latter.
  • the duct 5 of the injection rail 4 is provided with at least three feet 6, 6 'of support and attachment, two of which are located at or near the two opposite ends of said duct 5.
  • the primary attachment sites 9 are formed at the plate-shaped body 2 'of the plate 2 intended to come into direct and tight support on the cylinder head 7 and the sites fasteners 9 'are formed at tabs or flanges 10 of the plate 2 intended to extend over the support and fixing feet 6, 6' and, if appropriate, the conduit 5 of the injection ramp 4.
  • At least one 6 'of said tabs 6, 6' may possibly contribute to the retention and / or maintenance of the duct 5, by support with forms cooperation with the latter ( figures 3 ).
  • the tabs or wings 10 of the plate 2 consist of projections or projections of material formed in one piece with the walls of the portions of the tubes 3 and extending at a distance from the plate-shaped body 2 'of said plate 2.
  • the support and fixing feet 6, 6 'each have a body with a tubular structure intended to be traversed by a fixing screw 11.
  • This tubular body may comprise ends shaped in a particular way for bearing on the yoke 7 and the connection with the duct 5.
  • each foot advantageously has, in the upper part, a receiving zone 12 for a wing or leg 10 of the plate 2, the landing sites.
  • 9 'secondary fasteners formed at the latter being advantageously provided with spacers 13 to be traversed by the fastening screws 11.
  • Such metal spacers 13 may also be provided in the fixing holes of the plate 2 forming the sites of primary fixation 9.
  • feet 6, 6 'and lugs 10 may be provided to allow removal by lateral clearance of the injection manifold 4 when the fastening screws 11 (engaged in the attachment points 8 of the first group) have been removed, if necessary with a slight lateral lifting of the plate 2 (but without removing the screws 11 of the attachment points 8 ').
  • the receiving zones 12 and the corresponding contact surfaces of the tabs 10 have a flat conformation, allowing relative movement between them.
  • the fixing and connecting plate 2 is made of a thermoplastic or thermoset synthetic material, preferably by molding in one piece, and in that the injection ramp 4 is made of a material metal, the support and fixing feet 6, 6 'being made of a metallic or synthetic material.
  • the module 1 may consist of a preassembled unit before installation on site, if necessary, with locking by temporary mutual attachment or not of the ramp 4 and the plate 2, for example by engagement or screwing.
  • Platinum 2 can, as shown by figures 2 and 3 , be in the form of an independent or separate part, which is assembled after its manufacture (before or after mounting on the cylinder head) with at least one other component of the air supply system, for example a distributor or a compressor.
  • said plate 2 may constitute an integral part of a splitter (not shown) and in this case the functional module 1 comprises said splitter provided with the plate 2.
  • the plate 2 can advantageously serve as a mounting base for other components of the system. engine air supply.
  • the plate 2 may comprise fixing points 14 for the mounting with attachment of an intake distributor, a compressor or a similar piece of air supply intended (e) to be connected (e) sealingly to the tubing portions 3.
  • the present invention also relates to a vehicle with internal combustion engine powered by an injection rail, characterized in that it comprises at least one functional module 1 as described above, where appropriate a module 1 for each grouping of cylinders of the engine.
  • the engine comprises a plurality of cylinders arranged in a V arrangement
  • two functional modules 1 are implemented, one for each alignment of cylinders.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (11)

  1. Funktionelles Modul, das einerseits eine Platte (2) zum Befestigen und dichten Anschließen an dem Zylinderkopf eines Verbrennungsmotors aufweist, das Teile (3) von Luftzuführstutzen integriert, die eventuell mit Regelmitteln des Flusses auf dem Niveau ihrer Ausgangsöffnungen (3') versehen sind, und, andererseits, eine Hochdruck-Einspritzverteilerleiste (4) in der Form einer Leitung (5) die mit mehreren Einspritzern (5') versehen ist, wobei die Leitung (5) der Einspritzverteilerleiste (4) mit Trag- und Befestigungsfüßen (6, 6') versehen ist, die dazu bestimmt sind, direkt auf dem Zylinderkopf (7) aufzuliegen, insbesondere auf dem Niveau einer ersten Gruppe von Befestigungspunkten (8) dieses Letzteren, funktionelles Modul (1), dadurch gekennzeichnet, dass die Platte (2) einerseits mit Hauptbefestigungsstellen (9) versehen ist, die dazu bestimmt sind, mit einer zweiten Gruppe von Befestigungspunkten (8') des Zylinderkopfs (7) zusammenzuwirken, und, andererseits, mit Hilfsbefestigungsstellen (9'), die mindestens bestimmten der Befestigungspunkte (8) der ersten Gruppe des Zylinderkopfs (7) entsprechen, wobei sich die Hilfsbefestigungsstellen (9') der Platte (2) oberhalb mindestens bestimmter der Trag- und Befestigungsfüße (6, 6') der Einspritzverteilerleiste (4) positionieren und eine zusätzliche feste Verbindung der Platte (2) mit dem Zylinderkopf (7) sicherstellen.
  2. Funktionelles Modul nach Anspruch 1, dadurch gekennzeichnet, dass die Einspritzverteilerleiste (4) mindestens zwei Trag- und Befestigungsfüße (6, 6') aufweist, die auf der Leitung (5) angebaut oder ausgebildet sind, zum Beispiel durch Schrauben, Einrasten mit Formschlüssigkeit, Schweißen, Kleben oder Abformen, indem sie voneinander entlang dieser Letzteren beabstandet sind.
  3. Funktionelles Modul nach Anspruch 2, dadurch gekennzeichnet, dass die Leitung (5) der Einspritzverteilerleiste (4) mit mindestens drei Trag-und Befestigungsfüßen (6, 6') versehen ist, von welchen zwei auf dem Niveau oder in der Nähe der zwei gegenüberliegenden Enden der Leitung (5) liegen.
  4. Funktionelles Modul nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Hauptbefestigungsstellen (9) auf dem Niveau des Körpers (2') in Plattenform der Platte (2) ausgebildet sind, der dazu bestimmt ist, direkt und dicht auf dem Zylinderkopf (7) zum Aufliegen zu kommen, und dass die Hilfsbefestigungsstellen (9') auf dem Niveau von Pratzen oder Flügeln (10) der Platte (2) ausgebildet sind, die dazu bestimmt sind, sich über die Trag- und Befestigungsfüße (6, 6') zu erstrecken und, gegebenenfalls, über die Leitung (5) der Einspritzverteilerleiste (4).
  5. Funktionelles Modul nach Anspruch 4, dadurch gekennzeichnet, dass die Pratzen oder Flügel (10) der Platte (2) aus Materialprojektionen oder -vorsprüngen bestehen, die aus einem Stück mit den Wänden der Teile der Rohrstutzen (3) ausgebildet sind und sich von dem Körper in Plattenform (2') der Platte (2) beabstandet erstrecken.
  6. Funktionelles Modul nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Trag- und Befestigungsfüße (6, 6') jeweils einen Körper mit röhrenförmiger Struktur aufweisen, die dazu bestimmt ist, von einer Befestigungsschraube (11) durchquert zu sein.
  7. Funktionelles Modul nach den Ansprüchen 5 und 6, dadurch gekennzeichnet, dass jeder Trag- und Befestigungsfuß (6, 6') der Einspritzverteilerleiste (4) im oberen Teil einen Aufnahmebereich (12) für einen Flügel oder eine Pratze (10) der Platte (2) aufweist, wobei die Hilfsbefestigungsstellen (9'), die auf dem Niveau dieser Letzteren ausgebildet sind, vorteilhafterweise mit Abstandhaltern (13) versehen sind, die dazu bestimmt sind, von den Befestigungsschrauben (11) durchquert zu sein.
  8. Funktionelles Modul nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Befestigungs- und Anschlussplatte (2) aus einem synthetischen Thermoplast- oder Duroplastwerkstoff vorzugsweise durch Formen aus einem Stück hergestellt ist, und dass die Einspritzverteilerleiste (4) aus einem metallischen Werkstoff hergestellt ist, wobei die Trag- und Befestigungsfüße (6, 6') aus einem metallischen oder synthetischem Werkstoff hergestellt sind.
  9. Funktionelles Modul nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass es aus einer vor der Montage auf dem Standort zusammengefügten Einheit besteht, gegebenenfalls mit Verriegelung durch gegenseitige zeitweilige feste Verbindung oder nicht der Einspritzverteilerleiste (4) und der Platte (2), zum Beispiel durch Einrasten oder Verschrauben.
  10. Funktionelles Modul nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Befestigungs- und Anschlussplatte (2) Befestigungspunkte (14) für die Montage mit fester Verbindung eines Einlassverteilers, eines Verdichters oder eines ähnlichen Teils zum Zuführen von Luft, das dazu bestimmt ist, dicht mit den Rohrstutzenteilen (3) verbunden zu werden, aufweist.
  11. Fahrzeug mit Verbrennungsmotor, der von einer Einspritzverteilerleiste versorgt wird, dadurch gekennzeichnet, dass es mindestens ein funktionelles Modul nach einem der Ansprüche 1 bis 10 aufweist.
EP11773776.7A 2010-09-29 2011-09-26 Funktionelles luftzuführmodul mit einer einspritzverteilerleiste Active EP2622201B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1057843A FR2965308B1 (fr) 2010-09-29 2010-09-29 Module fonctionnel d'alimentation en air integrant une rampe d'injection
PCT/FR2011/052233 WO2012042159A1 (fr) 2010-09-29 2011-09-26 Module fonctionnel d'alimentation en air integrant une rampe d'injection

Publications (2)

Publication Number Publication Date
EP2622201A1 EP2622201A1 (de) 2013-08-07
EP2622201B1 true EP2622201B1 (de) 2014-10-29

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EP11773776.7A Active EP2622201B1 (de) 2010-09-29 2011-09-26 Funktionelles luftzuführmodul mit einer einspritzverteilerleiste

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US (1) US10473080B2 (de)
EP (1) EP2622201B1 (de)
FR (1) FR2965308B1 (de)
WO (1) WO2012042159A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3101678B1 (fr) * 2019-10-02 2023-06-30 Renault Sas Rampe d'injection pour moteur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163406A (en) * 1990-08-07 1992-11-17 Siemens Automotive L.P. Intake manifold/fuel rail
FR2779681B1 (fr) 1998-06-10 2000-08-04 Coutier Moulage Gen Ind Ensemble repartiteur d'admission/rampe d'injection assembles par un dispositif de raccordement rapide
DE19962987A1 (de) * 1999-12-24 2001-07-05 Mahle Filtersysteme Gmbh Kolbenmotor
DE10131110A1 (de) 2001-06-27 2003-01-09 Mann & Hummel Filter Zwischenflanschsystem für eine direkteinspritzende Brennkraftmaschine
EP1510687A2 (de) * 2003-08-28 2005-03-02 Siemens VDO Automotive Corporation Einlasskrümmer mit Einspritzdüsen und festgehaltener Kraftstoffverteilerleiste
DE10354687A1 (de) * 2003-11-22 2005-06-16 Mann + Hummel Gmbh Ansaugeinrichtung für eine Brennkraftmaschine
ITBO20040114A1 (it) * 2004-02-27 2004-05-27 Magneti Marelli Powertrain Spa Collettore carburante bi-materiale per un motore a combustione interna con iniezione diretta del carburante e metodo per la sua realizzazione
EP2148076A1 (de) * 2008-07-24 2010-01-27 Magneti Marelli Powertrain S.p.A. Ansaugeinrichtung für eine Brennkraftmaschine
FR2950396B1 (fr) * 2009-09-22 2012-04-27 Mark Iv Systemes Moteurs Sa Module fonctionnel integrant un repartiteur et une rampe d'injection et son procede de fabrication

Also Published As

Publication number Publication date
EP2622201A1 (de) 2013-08-07
WO2012042159A1 (fr) 2012-04-05
FR2965308A1 (fr) 2012-03-30
US20130306030A1 (en) 2013-11-21
US10473080B2 (en) 2019-11-12
FR2965308B1 (fr) 2015-03-06

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