EP3388661B1 - Deckel für kraftstoffeinfüllstutzen mit kraftstoffrücklauf - Google Patents

Deckel für kraftstoffeinfüllstutzen mit kraftstoffrücklauf Download PDF

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Publication number
EP3388661B1
EP3388661B1 EP18165119.1A EP18165119A EP3388661B1 EP 3388661 B1 EP3388661 B1 EP 3388661B1 EP 18165119 A EP18165119 A EP 18165119A EP 3388661 B1 EP3388661 B1 EP 3388661B1
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EP
European Patent Office
Prior art keywords
fuel
return
injector
connection
end piece
Prior art date
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Active
Application number
EP18165119.1A
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English (en)
French (fr)
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EP3388661A1 (de
Inventor
Benjamin DEVUN
Jean-François Moulin
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Renault SAS
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Renault SAS
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Publication of EP3388661A1 publication Critical patent/EP3388661A1/de
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Publication of EP3388661B1 publication Critical patent/EP3388661B1/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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from 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
    • 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
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • 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
    • F02M2200/18—Fuel-injection apparatus having means for maintaining safety not otherwise provided for
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/857—Mounting of fuel injection apparatus characterised by mounting fuel or common rail to 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
    • 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

Definitions

  • the present invention relates to a device for supplying high pressure fuel to a heat engine of a motor vehicle comprising a fuel return system.
  • the present invention also relates to a method for fixing a protective cover above a yoke covering the power supply device.
  • a heat engine of a motor vehicle comprises a cylinder block surmounted by a cylinder head; said crankcase cylinders in each of which a piston is driven in a sliding movement along the axis of the cylinder and which are limited in the upper part by the cylinder head.
  • the cylinder head comprises air and/or gas intake pipes and burnt gas exhaust pipes, said pipes emerging from the cylinder head into the cylinders through openings which are controlled by valves.
  • the cylinder head also comprises tubular ducts also leading into the cylinders, in said ducts are driven fuel injectors capable of injecting fuel into the cylinders. The mixture of fuel and fresh air is burned in the cylinders and allows the sliding of the piston.
  • Fuel is therefore brought at high pressure to the injectors by pipes from a fuel rail arranged in the upper part of the cylinder head.
  • the operation of the injectors involves a fuel leak rate, low pressure leak rate. This leaking fuel must then be brought to a fuel tank.
  • the operation of the high-pressure fuel rail also generates a fuel leak flow which is also returned to said fuel tank.
  • Said tank is thus connected on the one hand to a fuel return junction of each of the injectors and on the other hand to a return junction of the fuel rail.
  • the rail, the injectors and the pipes are arranged in the upper part of the cylinder head and covered by a protective cover.
  • the present invention relates to a protective casing for an internal combustion engine injection system intended for motor vehicles.
  • Motor vehicle injection systems are generally mounted in the upper part of the engine, which comprises cylinders closed by a cylinder head. Each cylinder comprises a piston whose upper surface forms with the cylinder head a combustion chamber.
  • the fuel is injected into the combustion chamber by means of injectors.
  • Injection systems include an injection rail mounted on the cylinder head of the engine and located between an injection pump and the injectors. The injection rail is supplied under high pressure with fuel by the pump and it is connected to the injectors by pipes. It thus constitutes a reserve of pressurized fuel and the injectors, at a frequency determined according to the rotational speed of the engine, inject the fuel into the combustion chambers.
  • a drawback of these supply systems resides in particular in the nature of the pipe connections, both on the injection rail and on the injectors. These connections are generally screw connections and they can present risks of leaks. The fuel from these leaks, liquid or vaporized, is likely to spread into the environment around the engine. To prevent the projection of fuel due to leaks, it has been imagined, for example in the document EP1172551 , to completely cover the injection system with a box including the injectors, the pipes and the injection rail. However, such a box is very bulky and it is not suitable for engines where the injection is carried out on the front face for which the available space is reduced.
  • WO 2015/087105 A1 also features a fuel return system and a protective cover.
  • the object of the invention is to remedy these problems and one of the objects of the invention is a fuel return system from the injectors and the high pressure rail.
  • a problem which arises and which the present invention aims to solve, is then to provide a box which makes it possible to avoid too many connections for the return of fuel from the injectors and from the fuel injection rail while ensuring the reliability of said connections.
  • the present invention proposes a protective box for an injection system of an internal combustion engine, said injection system comprising an injection rail which is fed by a pump and which is connected by pipes to injectors mounted in a cylinder head of said engine, said casing comprising a wall whose free lower edges are intended to join said cylinder head in leaktight manner, and said wall being adapted to extend to surround and cover said injection rail and said injectors.
  • the present invention relates more particularly to a high-pressure fuel supply device for a heat engine of a motor vehicle covered by a protective cover which is formed by vertical walls topped by a flat wall, and comprising an injection rail connected by pipes to at least one injector mounted in a cylinder head of said engine and a fuel return system comprising a pipe, characterized in that the fuel return pipe is fixed parallel to the flat wall of the protective cover and comprises a connection with a fuel return nozzle of the at least one injector, said connection extending transversely to the axis of the pipe towards the cylinder head.
  • the fuel return system is fixed to a protective cover of the device generally covering the fuel injection rail and the fuel injector(s) arranged on an upper wall of the cylinder head, which reduces the size on said upper wall and facilitates the assembly of the assembly.
  • the fuel return system comprises a line connected with a fuel return fitting of the at least injector, said fitting allows a connection by pressing in with a fitting facing the line to obtain a fluid-tight connection , making assembly easier.
  • connection of the pipe with the tip of the at least one injector is a quick and reversible connection.
  • connection between the pipe and the at least one injector is a quick connection to facilitate mounting of the protective cover.
  • the quick fixing of the fuel return pipe with the nozzle of at least one injector makes it possible to improve the assembly of the assembly of the fuel return device and of the protective cover and to reduce the time of assembly.
  • connection between the fuel return pipe and the fuel return fitting of the injection rail is a quick connection to facilitate assembly of the entire return device.
  • the quick connect provides a fluid seal to the fitting as fuel pressure is low in the fuel return line.
  • upper/lower refer to a height positioning along a vertical axis perpendicular to the plane of the vehicle passing through the wheel axles of said vehicle.
  • a thermal or internal combustion motor vehicle engine comprises a cylinder block surmounted by a cylinder head (not shown), these two elements delimit combustion chambers.
  • a cylinder head In the cylinder head, are dug tubular ducts adapted to house injectors 11 intended to send fuel into one of the combustion chambers (not shown).
  • the fuel comes from an injection rail 12 via a supply pipe 13 connecting an outlet connector 14 of said rail to an inlet connector 15 of the injector 11.
  • the fuel from the injection rail is at very high pressure, of the order of 1000 to 3000 bars.
  • it is necessary to have a fuel return circuit in which the fuel pressure is much lower, of the order of 1 to 3 bars.
  • the fuel return circuit allows the recovery of excess fuel or leaks from the injection circuit.
  • Said fuel return circuit comprises a fuel return system 10 arranged on an upper wall of the cylinder head.
  • the fuel return system comprises a fuel return pipe 50 fixed parallel to a flat wall 16 of a protective cover 17, said flat wall forms a ceiling of a chamber delimited by the upper wall of the cylinder head and the cover, in which the injection rail 12 and the injectors 11 are arranged.
  • the protective cover 17 is formed by vertical walls 18, two longitudinal walls joined to two transverse walls, said vertical walls are surmounted by the flat wall 16.
  • the fuel injectors 11 are four in number but this number can vary from one heat engine to another depending on the number of cylinders that the heat engine comprises.
  • the injectors are substantially cylindrical and fixed through the upper wall of the cylinder head and have a emerged upper end 27.
  • Said upper end comprises the fuel inlet connector 15 substantially transverse to the axis of the injector and a return end piece 19 fuel.
  • Said return end piece axially extends the upper end of the injector.
  • said return fitting 19 is of the female type and comprises an axial cylindrical cavity 20 emerging from the upper end of the fitting.
  • a return conduit (not shown) is connected to this cylindrical cavity for fuel return.
  • the injection rail 12 is substantially tubular and rests along its length on the upper wall of the cylinder head. As represented in figure 1 and 4 , it is cylindrical. It includes 14 output connectors, at number of four according to the figures, each of the outlet connectors is connected to an inlet connector 15 of an injector via the supply pipe 13.
  • the injection rail comprises a cylindrical protuberance 22 terminating in a return nozzle 23 fuel directed along an axis parallel to the axis of the injector which is vertical and perpendicular to the plane of the upper wall of the cylinder head.
  • the injection rail return end piece is of the male type and may comprise hooking projections extending transversely to the axis of said end piece and an O-ring arranged at a free end of the end piece (not shown ).
  • the fuel return nozzle of the injection rail also comprises a cylindrical cavity 24 opening out in the upper part of the nozzle. It can be the same for the dimensions of this cylindrical cavity 24 with those of the cylindrical cavity 20 of the return fitting 19 of the injector.
  • the pipe 50 of the fuel return system 10 comprises receiving end pieces 24, 24′ that are substantially cylindrical and extending transversely to the axis of the pipe towards the cylinder head and adapted to cooperate with the return end piece 19 of the other. least one injector 11 and the injection rail 12.
  • the pipe 50 thus comprises reception end pieces 24 of the male type adapted to be pushed into the cylindrical cavities of the return end pieces of the injectors 11.
  • Said reception end pieces 24 may comprise at a free end hooking projections 25 extending transversely to the axis of the tip towards the outside of said receiving tip, the overall outside diameter of the receiving tip with said projections is slightly greater than the inside diameter of the cylindrical cavity 24 of the return tip 19 of the injector 11.
  • the projections can be associated with O-rings to allow optimal fluid sealing.
  • Each receiving end piece is arranged so that the lower end of the receiving end piece faces the cylindrical cavity of the return end piece 19 of the injector. In this way the receiving tip 24 can be received in the cylindrical cavity of the tip of back 19 and thus form a quick push-in connection. This connection is also reversible because at the cost of a small retraction effort, it is possible to easily separate the receiving end piece from the return end piece of the injectors 11.
  • the return pipe 50 also includes a female-type receiving end piece 24' to receive the return end piece 23 of the injection manifold 12.
  • Said receiving end piece is substantially cylindrical comprising an inner duct whose diameter is slightly less than the outside diameter of the return fitting 23 of the injection rail with the hooking projections and the sealing O-ring.
  • This receiving end piece 24' is arranged so that the free lower end of its inner duct is facing the return end piece 23 of the injection ramp 12. In this way, the return end piece 23 can be easily pushed into the inner duct to ensure the fluidic continuity of the fuel return from the injection rail.
  • This connection is also reversible because at the cost of a small retraction effort, it is possible to easily separate the reception end piece 24' from the return end piece of the injection rail 12.
  • the depth of insertion of the receiving end piece into the return end piece is equal for the injectors and the injection rail.
  • the height of the vertical wall is preferably equal to or slightly equal to the height formed by the assembly of the connections between the reception and return end fittings, naturally taking into account the dimensions of the injection rail and the ends of the injectors emerging from the upper flat wall of the cylinder head.
  • the fuel return pipe passes through one of the vertical walls of the protective cover and is terminated by a connecting piece 26.
  • Said connecting piece can be connected to the fuel tank by a connecting pipe (not shown).
  • the fuel return line may also include another outlet passing through one of the vertical walls to be connected to an engine fuel pump (not shown).
  • the return pipe 50 can also be in one piece with the cover to facilitate assembly and reduce the number of part numbers to be assembled.
  • the return nozzles of the injection rail and of the injectors can optionally be directed along a horizontal axis, that is to say parallel to the upper wall of the cylinder head facing the same side associated with the same vertical wall. of the lid.
  • the cover will be slipped parallel to the axis of the end pieces using slides for example, then on reaching a stop which corresponds to the sinking of the reception end pieces into the cylindrical cavities of the return end pieces, the cover is then fixed to the cylinder head by threaded connections.

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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 (10)

  1. Vorrichtung zur Hochdruckkraftstoffversorgung eines Verbrennungsmotors eines Kraftfahrzeugs, die von einer Schutzabdeckung (17) bedeckt ist, welche von vertikalen Wänden (18) gebildet wird, über denen eine ebene Wand (16) angebracht ist, und die ein Verteilerrohr, das über Leitungen mit wenigstens einer in einem Zylinderkopf des Motors angebrachten Einspritzdüse verbunden ist, und ein Kraftstoffrücklaufsystem (10), das ein Rohr (50) aufweist, umfasst,
    dadurch gekennzeichnet, dass das Kraftstoffrücklaufrohr (50) parallel zu der ebenen Wand der Schutzabdeckung (17) befestigt ist und eine Verbindung mit einem Kraftstoffrücklauf-Endstück (19) der wenigstens einen Einspritzdüse (11) umfasst, wobei sich die Verbindung quer zur Achse des Rohres in Richtung des Zylinderkopfes erstreckt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Verbindung des Rohres (50) mit dem Rücklaufendstück (19) der wenigstens einen Einspritzdüse (11) eine reversible Schnellverbindung ist.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das Kraftstoffrücklauf-Endstück (19) der wenigstens einen Einspritzdüse (11) in Richtung der Achse der wenigstens einen zylindrischen Einspritzdüse ausgerichtet ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Rücklaufrohr (50) eine Verbindung mit einem Kraftstoffrücklauf-Endstück (23) des Verteilerrohres (12) aufweist, wobei sich die Verbindung quer zur Achse des Rohres (50) in Richtung des Zylinderkopfes erstreckt.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Verbindung zwischen dem Rücklaufrohr (50) und dem Kraftstoffrücklauf-Endstück (23) des Verteilerrohres (12) eine reversible Schnellverbindung ist.
  6. Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das Kraftstoffrücklauf-Endstück (23) des Verteilerrohres in einer Richtung ausgerichtet ist, die zur Achse des Rücklaufendstücks (19) der wenigstens einen Einspritzdüse (11) parallel ist.
  7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass das Rücklaufrohr (50) Aufnahmeendstücke (24, 24') aufweist, die geeignet sind, mit den Kraftstoffrücklauf-Endstücken (19, 23) der wenigstens einen Einspritzdüse (11) und des Verteilerrohres (12) zusammenzuwirken.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Rücklaufrohr (50) über eine seitliche vertikale Fläche (18) der Abdeckung über ein Anschlussendstück (26) mündet.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Rücklaufrohr (50) Teil der Schutzabdeckung (17) ist.
  10. Verfahren zur Befestigung einer Schutzabdeckung oberhalb eines Zylinderkopfes, welche eine Vorrichtung zur Hochdruckkraftstoffversorgung mit einem Kraftstoffrücklaufsystem nach einem der Ansprüche 7 bis 9 bedeckt, dadurch gekennzeichnet, dass die Befestigung der Schutzabdeckung (17) auf dem Zylinderkopf die gleichzeitige Verbindung der Kraftstoffrücklauf-Endstücke (19, 23) der wenigstens einen Einspritzdüse (11) und des Verteilerrohres (12) im Zusammenwirken mit den Aufnahmeendstücken (24, 24') des Rücklaufrohres (50) zur Folge hat.
EP18165119.1A 2017-04-13 2018-03-29 Deckel für kraftstoffeinfüllstutzen mit kraftstoffrücklauf Active EP3388661B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1753268A FR3065262B1 (fr) 2017-04-13 2017-04-13 Couvercle de rampe de carburant avec retour de carburant

Publications (2)

Publication Number Publication Date
EP3388661A1 EP3388661A1 (de) 2018-10-17
EP3388661B1 true EP3388661B1 (de) 2022-06-08

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EP (1) EP3388661B1 (de)
FR (1) FR3065262B1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015087105A1 (en) * 2013-12-13 2015-06-18 Volvo Truck Corporation Cover of an internal combustion engine assembly having a common rail, engine assembly and automotive vehicle including such a cover

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1024700B (it) * 1974-10-28 1978-07-20 Fiat Spa Perfezionamenti nella testa cilindri per motori a combustione inter na del tipo a ciclo diesel
DE9410232U1 (de) * 1994-06-27 1995-11-02 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE4423657C2 (de) * 1994-07-06 1997-10-02 Daimler Benz Ag Betätigungseinrichtung für ein Motorbremsventil einer Brennkraftmaschine
GB9726090D0 (en) * 1997-12-09 1998-02-11 Lucas Ind Plc Fuel system
DE19801171C1 (de) * 1998-01-15 1999-04-15 Daimler Chrysler Ag Kraftstoffeinspritzeinrichtung für eine mehrzylindrige Brennkraftmaschine
DE10025043A1 (de) * 2000-05-20 2001-11-22 Bosch Gmbh Robert Kraftstoffrücklaufeinrichtung
WO2002059472A1 (fr) * 2001-01-25 2002-08-01 Yanmar Co., Ltd. Injecteur de carburant de moteur
FR2935027A1 (fr) * 2008-08-18 2010-02-19 Renault Sas Circuit d'injection de carburant comportant au moins une conduite d'injection realisee venue de matiere avec un reservoir d'accumulation
JP2014095314A (ja) * 2012-11-08 2014-05-22 Honda Motor Co Ltd 内燃機関のカバー構造

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015087105A1 (en) * 2013-12-13 2015-06-18 Volvo Truck Corporation Cover of an internal combustion engine assembly having a common rail, engine assembly and automotive vehicle including such a cover

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Publication number Publication date
EP3388661A1 (de) 2018-10-17
FR3065262A1 (fr) 2018-10-19
FR3065262B1 (fr) 2021-07-30

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