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EP2057359A1 - Installation d'injection pour moteur à combustion interne et moteur à combustion interne - Google Patents

Installation d'injection pour moteur à combustion interne et moteur à combustion interne

Info

Publication number
EP2057359A1
EP2057359A1 EP07802790A EP07802790A EP2057359A1 EP 2057359 A1 EP2057359 A1 EP 2057359A1 EP 07802790 A EP07802790 A EP 07802790A EP 07802790 A EP07802790 A EP 07802790A EP 2057359 A1 EP2057359 A1 EP 2057359A1
Authority
EP
European Patent Office
Prior art keywords
fuel
internal combustion
combustion engine
pump
return line
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Withdrawn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
EP07802790A
Other languages
German (de)
English (en)
Inventor
Andreas BRÜCKL
Adolf Einberger
Sebastian Fischer
Bernd Heisig
Yavuz Kurt
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.)
Continental Automotive GmbH
Original Assignee
Siemens VDO Automotive AG
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 Siemens VDO Automotive AG filed Critical Siemens VDO Automotive AG
Publication of EP2057359A1 publication Critical patent/EP2057359A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • 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
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits

Definitions

  • the invention relates to an injection system for a combustion ⁇ engine and an internal combustion engine.
  • injection systems For injecting fuels into the combustion chambers of an internal combustion engine, in particular a diesel internal combustion engine, injection systems are used, which have increasingly been designed in recent years as so-called “common rail" systems
  • the fuel to be injected is currently present in the fuel storage at a pressure of up to 2000 bar.
  • Injection systems for internal combustion engines have pumps, by means of which fuel is conveyed to be introduced into combustion chambers of the internal combustion engine.
  • Such a ⁇ injection systems for internal combustion engines place high demands on the accuracy of the REQUIRED ⁇ chen for injection of the fuel ⁇ fuel in the combustion chambers of the internal combustion engine injection pressure.
  • an injection system for an internal combustion engine with a prefeed pump, can be promoted with the fuel from a fuel tank to the suction side of a high-pressure pump.
  • a high-pressure pump connected hydraulically downstream of the prefeed pump then delivers fuel to a fuel reservoir, from where it then discharges to injectors hydraulically coupled to the fuel reservoir.
  • injectors hydraulically coupled to the fuel reservoir.
  • control valves are arranged, by means of which, given suitable activation in the fuel reservoir, a predetermined pressure dependent on the operating parameters of the internal combustion engine can be achieved.
  • the object of the invention is to sheep ⁇ fen an injection system for an internal combustion engine and an internal combustion engine, by the operation of the internal combustion engine with very low pollutant emissions and a simple structure of the injection system are made possible.
  • the invention features an injection system for an internal combustion engine, with at least one with a fuel reservoir hydraulically coupled injector, with the fuel of a high pressure pump for pumping fuel injected into a combustion chamber of a cylinder of the internal combustion engine from a power ⁇ fuel tank in the fuel storage, a downstream of the high-pressure pump and upstream of the fuel storage ⁇ ordered return line, which is designed for returning fuel from the high-pressure pump and / or the injector in the fuel tank and a branched off from the return line branch line, which is hydraulically coupled to a Abgas Journeyinjektor with which fuel can be injected into an exhaust tract of the internal combustion engine.
  • the hitherto used high-pressure pump can be used in the injection system for the supply of the exhaust-gas injector with fuel, without it to have to change.
  • the hitherto used high-pressure pump can be diverted via the Abzweiglei ⁇ tion, which is hydraulically coupled to the Abgas Consumerinjektor, fuel for the Abgas Pandainjektor, without thereby affecting the delivery capacity of the high-pressure pump to ⁇ impressive.
  • the return line is an injector return line of the at least one injector.
  • the return line is a downstream of the high pressure pump and upstream of the fuel reservoir branching pump ⁇ return line. This is advantageous because an otherwise existing pressure relief valve of the prefeed pump can be omitted. In addition, it is possible to provide a constant pressure at the exhaust-gas injector even in the event of a lack of injection at the injectors.
  • the branch line branches off in the return line at a branch point and downstream of the branch point and upstream ⁇ of the fuel tank, a check valve is arranged ⁇ assigns. This is particularly advantageous because it makes it possible to provide a defined pressure level for the exhaust tract injector.
  • the invention features an internal combustion engine with an injection system where ⁇ having a particle filter in the exhaust tract and strö ⁇ mung technically couplable with the combustion chamber, and the Abgas Thermalinjektor downstream of the combustion chamber and upstream ⁇ Wind detail of the particulate filter is arranged.
  • ⁇ having a particle filter in the exhaust tract and strö ⁇ mung technically couplable with the combustion chamber and the Abgas Thermalinjektor downstream of the combustion chamber and upstream ⁇ Wind detail of the particulate filter is arranged.
  • FIG. 1 shows a block diagram of an injection system for an internal combustion engine in a first embodiment
  • FIG. 2 shows a block diagram of the injection system for an internal combustion engine in a second embodiment
  • FIG. 3 shows a block diagram of the injection system for an internal combustion engine in a further embodiment
  • Figure 4 is a schematic view of an internal combustion engine.
  • the injection system illustrated in Figure 1 for an internal combustion engine 50 has a fuel tank 10 from which by means of a prefeed pump 12 fuel ge ⁇ .
  • the prefeed pump 12 is designed with preference as well ⁇ gel cell pump. However, it can also be another type of pump, z. B. a gear pump or a gerotor pump can be used for the pre-promotion.
  • the prefeed pump 12 can be connected to a drive shaft, not shown, which is coupled to a motor shaft of the internal combustion engine 50. are driven nisch. Alternatively, however, it is also possible to use an electrically operated prefeed pump, whereby a control of the delivery rate of the prefeed pump 12 is independent of the delivery rate of other pumps possible.
  • a high-pressure pump 14 for conveying the fuel in a fuel reservoir 16 is arranged downstream of the prefeed pump 12.
  • the fuel reservoir 16 is hydraulically coupled to the high pressure pump 14 via a fuel storage supply line 44.
  • the high pressure pump 14 may preferably comprise as Radi ⁇ alkolbenpumpe or formed as a series of piston pump with several Zylin ⁇ derismeen be, as they are known for use in injection systems of internal combustion engines.
  • the fuel reservoir 16 is further hydraulically coupled via lines to an injector 18 or a plurality of injectors 18.
  • Each of the injectors 18 is associated with a combustion chamber 53 of the internal combustion engine 50 and each can be so angesteu ⁇ ert that fuel is injected into the combustion chamber 53.
  • the high-pressure pump 14 the fuel which is to be injected by means of the injectors 18 into the combustion chambers 53 of the internal combustion ⁇ engine 50, a high injection pressure ⁇ reach a ⁇ .
  • Excess fuel may be returned to the fuel tank 10 from the injectors 18 via an injector return line 46.
  • a Volumenstrom horr- / control valve 22 is arranged, with which the fuel flow from the feed pump 12 in the high ⁇ pressure pump 14 is adjustable.
  • a pressure sensor 25 by means of which the fuel pressure in the fuel reservoir 16 can be determined, as well as optionally as a function of further input variables, the volumetric flow control / regulating valve 22 can be controlled such that a low-pressure side regulation of the high-pressure pump 14 supplied power ⁇ material flow is possible.
  • the high pressure pump 14 is connected by means of a downstream of the high pressure pump 14 and upstream of the fuel reservoir 16 branched pump return line 19 with a pressure control valve 20, which is preferably controlled depending on the determined by the pressure sensor 25 fuel pressure in the fuel reservoir 16.
  • a pressure control valve 20 which is preferably controlled depending on the determined by the pressure sensor 25 fuel pressure in the fuel reservoir 16.
  • the pressure control valve can open 20 and a part of the conveyed from the high ⁇ pressure pump 14 the fuel can be returned through the pump return line 19 into the fuel tank 10 degrees.
  • a purge line throttle 34 and hydraulically in series with a purge line valve 32 are further arranged.
  • the purge line throttle 34 may limit the fuel flow ⁇ through the purge line 29.
  • the branching off via the purge line 29 Kraftstoffström be released when a predetermined fuel pressure at the output side of the pre-feed pump 12 is exceeded. It must be ensured that the flushing of the high pressure pump 14 until a ⁇ recognized when the operating pressure of the high pressure pump 14 reaches is. This is necessary because only way to ensure that no fuel via the purge line ask ⁇ branches, is 29 as long as the pressure increase on the suction side of the high pressure pump 14 is not yet complete. This can be achieved that the pressure build-up on the suction side of the high-pressure pump 14 is not delayed.
  • filters 36, 40 are arranged at suitable points.
  • a first filter 36 is provided to protect the prefeed pump 12 hydraulically between the fuel tank 10 and the prefeed pump 12.
  • a second filter 40 is arranged to protect the pressure regulating valve 20.
  • the pressure regulating valve 20 is arranged in the pump return line 19, which is the output side coupled to the Injektor Weglauflei ⁇ device 46 of at least one injector 18.
  • the purge return line 35, the pump return line 19 and the injector return line 46 from the injectors 18 are preferably returned to the fuel tank 10.
  • a branch point 41 downstream of the high-pressure pump 14 and upstream of the fuel tank 10 branches off from the Pum ⁇ pen Weglauftechnisch 19 from a branch line 42 which is hydraulically coupled to a Abgas Thermalinjektor 47.
  • fuel can be injected into an exhaust tract 56 of the internal combustion engine 50, as described below.
  • a check valve 48 is arranged, which can be adjusted so that a sufficient pressure is applied to the exhaust-gas injector 47.
  • a Tanküberbrückungs ⁇ line 49 is arranged, via which from the pump return line 19 and / or the injector return line 46 flowing back fuel directly to the first filter 36 can be performed.
  • the internal combustion engine 50 is shown with an intake section 51, an engine block 52, a cylinder head 54 and the exhaust gas duct 56.
  • the intake duct 51 includes vorzugswei ⁇ se a throttle valve 58, an accumulator 60 and a suction pipe 62.
  • the suction pipe 62 is out led to a cylinder Zl via an inlet channel into the combustion chamber 53 of the engine block 52.
  • the engine block 52 further includes a crankshaft 64, which is coupled via a connecting rod 66 with a piston 68 of the cylinder Zl.
  • the cylinder head 54 includes a gas inlet valve 70 and a gas outlet valve 72 and the injector 18.
  • a particulate filter 88 is arranged in the exhaust tract 56.
  • the particulate filter 88 is preferably a soot filter. Downstream of the combustion chamber 53 and upstream of the Pumblefil ⁇ ters 88 of Abgas Thermalinjektor 47 is arranged, may be injected with the fuel into the exhaust tract 56th
  • the internal combustion engine has five, six or eight cylinders.
  • the prefeed pump 12 delivers fuel from the fuel ⁇ tank 10, wherein impurities in the first filter 36 between the fuel tank 10 and the feed pump 12 can be réellegehal ⁇ th.
  • the fuel then passes to the volumetric flow control / control valve 22.
  • the volumetric flow control / control valve 22 the high pressure pump 14 becomes so much fuel provided as required by the fuel storage 16.
  • the fuel is supplied via the fuel storage supply line 44 to the fuel reservoir 16. From the fuel reservoir 16, the fuel is supplied to the injectors 18, and injected from them into the combustion chambers 53 of the internal combustion engine 50.
  • the fuel pressure required for the fuel tank 16 is determined by the pressure regulating valve 20. If the pressure in the fuel accumulator feed line 44 and thus too strong in the fuel accumulator 16 at or to be selectively reducing the pressure in the fuel reservoir 16, so 20 fuel may be discharged by means of the pressure regulating valve in the fuel ⁇ tank 10th Fuel is further returned from the purge return line 35 and the injector return line 46 from the injectors 18 to the fuel tank.
  • fuel flowing back from the pump return line 19 and / or the injector return line 46 can be conducted directly to the first filter 36. This is particularly advantageous because the fuel flowing back from the pump return line 19 and / or the injector return line 46 may have a higher temperature than the fuel pumped from the fuel tank 10. At low ambient temperatures, such an unimpeded fuel flow through the first filter 36 can be achieved.
  • the delivery rate of the mechanical prefeed pump 12 as well as the high-pressure pump 14 is determined by the drive speed of the pump.
  • the input speed of the feed pump 12 and the high pressure pump 14 is determined by the ratio of the rotational ⁇ number of the respective pump to the speed of the motor.
  • the scavenging valve 32 is closed, so that a pressure build-up can take place on the intake side of the high-pressure pump 14.
  • the Hubvolu ⁇ men the prefeed pump 12 is chosen to be much larger than the delivery volume of the high-pressure pump 14 so as to ensure a sufficient flow rate to the intake side of the high-pressure pump 14 at start. If the pressure build-up on the suction side of the high-pressure pump 14 is completed, the scavenging valve 32 opens.
  • the fuel flow branched off from the feed pump 12 for purging the high-pressure pump 14 via the scavenging line 29 and the scavenging return line 35 can now reach such high pressure in the scavenging return line 35, that thus also a contribution to the supply of Abgas Consumerinjektors 47 with fuel from the purge return line 35 is possible.
  • a specific increase in the exhaust temperature, to aid in regeneration of the particulate filter 88 is performed vorzugswei ⁇ se in a partial load operation or the full load operation of the internal combustion engine 50th
  • the injection system is designed so that in a full load operation of the internal combustion engine 50 a maximum benö ⁇ t costume fuel delivery volume flow of the high-pressure pump 14 is ensured. In all other operating points of the internal combustion engine 50, it is sufficient if the high-pressure pump 14 promotes a comparatively lower fuel delivery volume flow.
  • the embodiment of the injection system illustrated in FIG. 2 differs from the first embodiment in that the branch line 42 hydraulically coupled to the exhaust-gas injector 47 branches off from the injector return line 46 at the branching point 41.
  • the non-return valve 48 for adjusting a sufficient pressure on Abgas Quiltinjektor 47 of the branch-off point is located downstream in the injector ⁇ return line 46 41st
  • the feed pump 12 is hydraulically coupled on the output side with egg ⁇ nem form control valve 28.
  • the feed pump 12 When exceeding a predetermined fuel pressure at the output side of the feed pump 12 so that a portion of the funded by the feed pump 12 fuel to the suction side of the prefeed pump 12 are returned. As a result, the fuel pressure at the output side of the prefeed pump 12 can be limited.
  • the back-flowing from the injectors 18 for the fuel Abgas Quiltinjektor 47 can be ge ⁇ uses.
  • the injection system can therefore still be with the normally present form control valve 28 Betrie ⁇ ben.
  • the embodiment of the injection system shown in FIG. 3 differs from the embodiment of FIG. 2 in that the branch line 42 hydraulically coupled to the exhaust tract injector 47 branches off at the branch point 41 downstream of the hydraulic connection of the injector return line 46 and the pump return line 19.
  • the operation of the fuel injection corresponds We ⁇ sentlichen the embodiment of the injection system of FIG. 2
  • This embodiment is particularly advantageous when the pressure conditions in the injector return line 46 and the pump return line 19 substantially coincide, since in this case otherwise required in both return lines 19, 46 required components (such as valves) only once again.

Landscapes

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

Abstract

L'invention concerne une installation d'injection pour un moteur à combustion interne qui présente au moins un cylindre (Z1 à Z4), au moins un injecteur (18) accouplé hydrauliquement à un réservoir de carburant (16) et qui permet d'injecter le carburant dans une chambre de combustion (53) d'un des cylindres (Z1 à Z4) du moteur à combustion interne, une pompe à haute pression (14) qui transporte le carburant depuis une cuve à carburant (10) jusque dans le réservoir à carburant (16), un conduit de retour (19, 46) disposé en aval de la pompe à haute pression (14) et en amont de la cuve à carburant (10) et configuré pour renvoyer le carburant de la pompe à haute pression (14) et/ou l'injecteur (18) à la cuve à carburant (10), et un conduit de dérivation (42) qui est dérivé du conduit de recirculation (19, 46) et qui est accouplé hydrauliquement à un injecteur (47) du conduit de gaz d'échappement, et par lequel le carburant peut être injecté dans le conduit de gaz d'échappement (56) du moteur à combustion interne.
EP07802790A 2006-08-25 2007-08-22 Installation d'injection pour moteur à combustion interne et moteur à combustion interne Withdrawn EP2057359A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610039882 DE102006039882B3 (de) 2006-08-25 2006-08-25 Einspritzanlage für eine Brennkraftmaschine und Brennkraftmaschine
PCT/EP2007/058718 WO2008023031A1 (fr) 2006-08-25 2007-08-22 installation d'injection pour moteur à combustion interne et moteur à combustion interne

Publications (1)

Publication Number Publication Date
EP2057359A1 true EP2057359A1 (fr) 2009-05-13

Family

ID=38609826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07802790A Withdrawn EP2057359A1 (fr) 2006-08-25 2007-08-22 Installation d'injection pour moteur à combustion interne et moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP2057359A1 (fr)
DE (1) DE102006039882B3 (fr)
WO (1) WO2008023031A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2920038A1 (fr) * 2007-08-14 2009-02-20 Renault Sas Systeme d'injection de carburant pour moteur a combustion interne
FR2940371B1 (fr) * 2008-12-22 2011-04-01 Renault Sas Ensemble d'injection de carburant
US9089799B2 (en) * 2011-08-08 2015-07-28 Ti Group Automotive Systems, L.L.C. Fluid distribution system with filtration

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009201A1 (de) * 1990-01-25 1991-08-01 Man Technologie Gmbh Abgassystem mit einem partikelfilter und einem regenerierungsbrenner
DE4436415A1 (de) * 1994-10-12 1996-04-18 Bosch Gmbh Robert Einrichtung zum Nachbehandeln von Abgasen einer selbstzündenden Brennkraftmaschine
DE10024254A1 (de) * 2000-05-17 2001-12-06 Bosch Gmbh Robert Vorrichtung zur Abgasbehandlung
DE10059427A1 (de) * 2000-11-30 2002-06-06 Bosch Gmbh Robert Einrichtung und Verfahren zur Nachbehandlung von Abgasen
DE10146740A1 (de) * 2001-09-22 2003-04-10 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
FR2879241B1 (fr) * 2004-12-14 2007-02-23 Renault Sas Systeme d'injection gas-oil a l'echappement sans pompe a carburant additionnelle
DE102005040918A1 (de) * 2005-08-30 2007-03-08 Robert Bosch Gmbh Kraftstoffeinspritzsystem mit verringerter Schadstoffemission

Non-Patent Citations (1)

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Title
See references of WO2008023031A1 *

Also Published As

Publication number Publication date
DE102006039882B3 (de) 2007-12-20
WO2008023031A1 (fr) 2008-02-28

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