EP1262658B1 - Système de combustible pour amener du combustible pour un moteur à combustion interne - Google Patents

Système de combustible pour amener du combustible pour un moteur à combustion interne Download PDF

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Publication number
EP1262658B1
EP1262658B1 EP02011015A EP02011015A EP1262658B1 EP 1262658 B1 EP1262658 B1 EP 1262658B1 EP 02011015 A EP02011015 A EP 02011015A EP 02011015 A EP02011015 A EP 02011015A EP 1262658 B1 EP1262658 B1 EP 1262658B1
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EP
European Patent Office
Prior art keywords
fuel
pressure
shut
fuel pump
valve device
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
EP02011015A
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German (de)
English (en)
Other versions
EP1262658A3 (fr
EP1262658A2 (fr
Inventor
Helmut Rembold
Jens Wolber
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1262658A2 publication Critical patent/EP1262658A2/fr
Publication of EP1262658A3 publication Critical patent/EP1262658A3/fr
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Publication of EP1262658B1 publication Critical patent/EP1262658B1/fr
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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock

Definitions

  • the invention relates to a fuel system for supply of fuel for an internal combustion engine, with a Reservoir, with a first fuel pump, the Inlet is connected to the reservoir, with a second fuel pump, the inlet of which Fuel connection with an outlet of the first Fuel pump is connected to at least one Injector, which with an outlet of the second Fuel pump is connected and fuel at least can lead indirectly to a combustion chamber with one Locking device, which a return flow of fuel at least from a portion of the fuel connection prevented back into the reservoir, and with a Leakage line coming from the second fuel pump leads to the reservoir.
  • Such a fuel system is known from the market see e.g. US-A-5558068.
  • an electrically delivers powered fuel pump from a fuel tank Fuel through a fuel line too a high-pressure fuel pump driven by the internal combustion engine. This promotes the fuel under a lot high pressure in a fuel manifold (also: "Rail” called). From there the fuel gets at least an injector, through which the fuel eventually gets into the combustion chamber of the internal combustion engine.
  • a fundamental problem with fuel systems is that Supply of the combustion chambers of the internal combustion engine with Fuel during starting.
  • a valve device ensures that the electrically driven one during the starting process Fuel pump closes the fuel with increased feed pressure supplies the injectors. In many cases it is enough this increased feed pressure to the internal combustion engine start in no time. By the increased Feed pressure can cause a gas bubble in the Fuel connection between the electrically powered Fuel pump and that of the internal combustion engine driven fuel pump in many cases like this be compressed that a safe start of the Internal combustion engine is guaranteed.
  • the present invention has the task of a Fuel system of the type mentioned above to further that the starting and operating behavior of a internal combustion engine equipped with the fuel system gets better at high operating temperatures and that Service life of the fuel system is as long as possible. At the same time, the fuel system should be as simple as possible be constructed.
  • shut-off valve device in the Leakage line is achieved that after turning off the Internal combustion engine the increased form in the Fuel connection between the first and second Fuel pump can be maintained.
  • the leakage line is blocked after it has been switched off The engine prevents fuel from flowing through the gap between the movable pump element and the Limitation of the pump space of the second fuel pump passes through and flows back to the reservoir. This would cause a gradual decrease in pressure in the Fuel connection upstream from the first Run the fuel pump.
  • Maintaining pressure prevents that after turning off one is called Internal combustion engine in the connection between the first and the second fuel pump can form gas bubbles.
  • Such gas bubbles occur when the in the Fuel lines between the fuel pumps located fuel due to heat conduction from the Internal combustion engine heated up.
  • the pressure is like this is possible with the fuel system according to the invention is, even with an internal combustion engine turned off can maintain the formation of such gas bubbles largely avoided. This improves that Starting behavior of one with the invention Fuel system-equipped internal combustion engine considerably.
  • the hydraulic actuation of the shut-off valve device is reliable and simple, i.e. inexpensive, realizable.
  • the control of the shut-off valve device by the pressure in that section of the Fuel connection which is upstream of the Locking device is located, allows a quick response of the Shut-off valve device on switching the first fuel pump.
  • This section occurs when the Fuel pump very quickly to build up pressure from ambient pressure prevailing at rest to normal Operating pressure of the first fuel pump. Conversely, falls the pressure in this section of the fuel connection at Switching off the first fuel pump from the normal one Operating pressure very quickly to ambient pressure, so that the shut-off valve device is also safe in this case and can be switched reliably.
  • the Shut-off valve device by the pressure at the outlet of the first fuel pump is controlled.
  • the Pressure changes when switching the first on and off Fuel pump is most noticeable.
  • the shut-off valve device can switch off the first fuel pump thus be closed very quickly what an undesirable outflow of fuel from the Leakage line and the fuel connection in the Storage container prevented early.
  • the pressure in the Fuel connection can thus be as high as possible Level can be maintained.
  • the Shut-off valve device only when a Control pressure opens, which is in the normal range Operating pressure of the first fuel pump is and a pressure drop indicates a control pressure which below the normal operating pressure of the first Fuel pump is, and if there is a pressure drop to one Control pressure closes, which is below normal Operating pressure of the first fuel pump is.
  • shut-off valve device a biasing element, for example a spring, which includes a valve element in the closed Rested position applied.
  • a pressure relief valve is provided downstream of the Locking device.
  • this pressure relief valve it has the following Proven: After turning off the hot ones Internal combustion engine, the standstill of the first Fuel pump and the associated closing of the Shut-off valve device could be caused by heating the Fuel and the associated expansion of the Fuel in the fuel connection and the Leakage line to an impermissible pressure increase in this Area come. Such an impermissible increase in pressure will prevented by the pressure relief valve.
  • the Components in the fuel connection and in the Leakage line are thus also in the case of shutdown Internal combustion engine protected against impermissibly high pressures, which increases their lifespan. In addition, too cheaper components designed for lower pressures are used.
  • An advantageous embodiment provides that a return flow line downstream of the blocking device from the fuel connection to the reservoir branches and the pressure relief valve in the Return flow line is arranged.
  • control connection the shut-off valve device with a degassing connection the first fuel pump is connected.
  • this solution comes into question if with the Return flow no suction jet pump should be operated. It is then for the efficiency of the first fuel pump advantageous that of the main flow of fuel no tax amount is deducted.
  • shut-off valve device is a connected in parallel to the shut-off function Has pressure limiting function. In this case, on a separate pressure relief valve can be dispensed with, what the construction costs for the fuel system according to the invention reduced.
  • shut-off valve device in the area of the storage container, especially in the area of the first fuel pump, is arranged. It is particularly preferred if the first fuel pump and the shut-off valve device Are part of a tank installation unit.
  • the invention also relates to an internal combustion engine, especially for motor vehicles, with a Fuel system that uses at least one fuel Feeds combustion chamber. It is advantageous if that Fuel system is designed in the above manner.
  • a fuel system as a whole carries that Reference numeral 10. It is part of an internal combustion engine 11 and includes a low pressure region 12 and one High pressure area 14.
  • the low pressure region 12 comprises a storage container 16, in which fuel 18 is stored.
  • the fuel 18 is from the reservoir 16 by a first Fuel pump 20 promoted. This is about an electric fuel pump powered by a Clock module 22 is driven.
  • the electrical Fuel pump 20 feeds into an via an outlet 23 Low pressure fuel line 24. In this is after the electric fuel pump 20 in the flow direction first seen a check valve 26 and then a Filter 28 arranged.
  • Branch line 30 Seen in the direction of flow before the check valve 26 branches off from the low-pressure fuel line 24 Branch line 30, which to the reservoir 16 returns.
  • branch line 30 In the branch line 30 is one Flow throttle 32 arranged.
  • Branch line 34 From the between the Check valve 26 and the filter 28 located area of Low-pressure fuel line 24 branches one more Branch line 34, which also goes to the reservoir 16 returns and in which a pressure relief valve 36 is arranged.
  • the pressure in the downstream of that Check valve 26 located portion of the low pressure fuel line 24 is detected by a pressure sensor 38.
  • the low pressure fuel line 24 leads to a second one Fuel pump 40. This will not be discussed here illustrated way of the crankshaft of the Internal combustion engine 11 driven.
  • the second Fuel pump 40 is a 1-piston high-pressure pump. Upstream of the high pressure pump 40 are still in the low pressure fuel line 24 Pressure damper 42 and a check valve 44 are arranged.
  • the high pressure pump 40 pumps into a Fuel line 46, which via a check valve 48 leads to a fuel rail 50.
  • a fuel rail 50 This will commonly referred to as "rail”.
  • To the fuel rail 50 are in turn several fuel injectors 52 connected which the fuel in a combustion chamber, not shown, of the internal combustion engine Inject 11.
  • the pressure in the fuel rail 50 is detected by a pressure sensor 54.
  • a pressure relief valve 56 provided which is fluidly connected via a line 58 to the Low pressure fuel line 24 is connected.
  • the pressure in the fuel line 46 and the fuel rail 50, that is in the high pressure region 14 of the Fuel system 10, is via a quantity control valve 60 controlled which between the check valve 48 and the high pressure pump 40 located area of Fuel line 46 with between the check valve 44 and the pressure damper 42 located area of Low pressure fuel line 24 connects.
  • the fuel system 10 also includes a control and Control device 62, which among other things signals from Pressure sensor 54 receives. This is also from the pressure sensor 38 Control and regulating device 62 supplied with signals. On the output side, the control and regulating device 62 is below with the clock module 22 of the first fuel pump 20 and connected to the flow control valve 60.
  • a leakage line 64 leads from the high pressure pump 40 back to the storage container 16.
  • a shut-off valve device 66 is present. This has via an open switch position 68 and a closed Switch position 70. In the closed rest position 70 the shut-off valve device 66 by a compression spring 72 brought. In the open switch position 68 Shut-off valve device 66 by a piston 74 brought, which is shown only symbolically in Fig. 1. The piston 74 can communicate with the pressure via a control line 76 are applied, which in the branch line 30th prevails.
  • the electric fuel pump 20, the check valve 26, the filter 28, the pressure sensor 38, the Pressure relief valve 36, the flow restrictor 32 and the Shut-off valve device 66 are part of one Tank installation unit 75.
  • the high pressure pump 40 is a 1-piston pump.
  • the piston 77 is driven by a cam drive 78 driven.
  • the piston 77 is in a cylinder housing 80 guided.
  • the top of the piston 74 and that Cylinder housing 80 delimit a pump chamber 82. This becomes opposite the cam drive 78 by a gap seal sealed between the piston 74 and the Cylinder housing 80 is formed.
  • one Piston seal 84 fixed to the housing is provided.
  • the Leakage line 64 branches directly from an annular groove 86 Above the piston seal 84. This will in Operation relieves the piston seal 84.
  • the shut-off valve device 66 comprises a housing 88, in which the piston 74 is guided. At its top in Fig. 2 At the end, the piston 74 carries a head 90, the diameter of which is considerably larger than that of the piston 74. Also the Piston 90 is in a correspondingly wider area of the Valve housing 88 guided tightly.
  • the head 90 is from the Compression spring 72 acts, through which the lower End face of the piston 74 against an annular web 92 is acted upon in a flow space 94 behind formed an inlet 96 of the shut-off valve device 66 is.
  • a radial outlet 97 is located at the flow space 94 provided to which the leading to the reservoir 16 Section of the leakage line 64 is connected.
  • the housing 88 of the shut-off valve device 66 is after closed at the top by a lid 98, which on a pin on its inside facing head 90 (without reference numerals) through which the compression spring 72 is centered.
  • the shut-off valve device cover 98 66 is with the valve housing 88 by caulking 99 inextricably linked.
  • Below the head 90 is between the Head 90, the piston 74 and the valve housing 88 a further pressure chamber 100 is formed below the head 90. This is about one radial bore 102 connected to the control line 76.
  • the Compression spring 72 is in a cylindrical recess (without Reference numerals) performed in the top of the head 90. from A flow channel 104 runs along the bottom of the recess through the piston 74 downwards and further radially outwards into the flow space 94.
  • the fuel system 10 shown in FIGS. 1 and 2 works as follows:
  • the high pressure pump 40 promotes the electric fuel pump 20 pre-compressed fuel 18 continue with another pressure increase in the Fuel line 46 to the fuel rail 50.
  • the pressure sensor 54 and the quantity control valve 60 are part a closed controlled system, over which the of the High pressure pump 40 in the high pressure area 14 of the Fuel system 10 delivered fuel amount and their Pressure is set.
  • the pressure area below the head 90 and the compression spring 72 are matched to one another so that when printing just below the minimum operating pressure of 1.5 bar the head 90 and with it the piston 74 against the force of the Compression spring 72 is moved upwards.
  • the Piston 74 from the ring web 92 and gives the way from the Leakage line 64 through the shut-off valve device 66 to the reservoir 16 free.
  • shut-off valve device 66 As mentioned above, they are below the Head 90 lying pressure surface and the compression spring 72 so coordinated that the closing of the shut-off valve device 66 already scarce at one print takes place below 1.5 bar. Is the shut-off valve device 66 closed, but is the entire Area of the leakage line 64 between the shut-off valve device 66 and the high pressure pump 40 and the Area of low pressure fuel line between the High pressure pump 40 and the check valve 26 from the Environment completed. The remains in this area System pressure at the time of parking also at parked engine received.
  • the pressure relief valve 36 is on the Branch line 34 with this area of the low-pressure fuel line 24 connected.
  • the compression spring 72 and located within the Ring web 72 located end face of the piston 74 so be coordinated with one another that if the Pressure in the leakage line 64 to a value above a limit value of the piston 74 lifts off from the ring web 92
  • the corresponding pressure level is preferably above the pressure levels predetermined by the pressure relief valve 36.
  • the shut-off valve device 66 an additional safety pressure limiting device for the low pressure fuel line 24 and the Leakage line 64 created.
  • the flow channel 104 Via the flow channel 104 is the space in which the Compression spring 72 is arranged with the radial outlet 97 the shut-off valve device 66, which in turn leads to the reservoir 16. Because there usually approximately ambient pressure prevails, is caused by this Flow channel 104 avoided in the room in which the compression spring 72 is arranged, the force ratio can build up disturbing pressure.
  • the Control line from the shut-off valve device is not closed a branch line, but to one on the electrical Fuel pump existing degassing connection.
  • This solution is preferably used if the Return flow no suction jet pump is operated. This has the advantage of being the bulk of the fuel no tax amount is deducted, reducing the efficiency of the electric fuel pump improved.

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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 (13)

  1. Système d'alimentation en carburant (10) pour fournir du carburant (18) à un moteur à combustion interne comportant un réservoir d'alimentation (16), une première pompe à carburant (20) dont l'entrée est reliée au réservoir d'alimentation (16), une seconde pompe à carburant (40) dont l'entrée est reliée par une liaison de carburant (24) à une sortie (23) de la première pompe d'alimentation en carburant (20), au moins un dispositif d'injection (52) relié à la sortie de la seconde pompe à carburant (40) et fournissant le carburant (18) au moins indirectement à la chambre de combustion, une installation de coupure (26) qui évite le retour du carburant (18) au moins à partir d'un segment de la liaison de carburant (24) en retour vers le réservoir d'alimentation (16), ainsi qu'une conduite de fuite (64) reliant la seconde pompe à carburant (40) au réservoir d'alimentation (16),
    caractérisé en ce que
    la conduite d'alimentation (64) comporte une installation à vanne d'arrêt (66) à commande hydraulique, cette vanne étant commandée par la pression dans un segment de la liaison de carburant (24) qui se situe en amont de l'installation de coupure (26).
  2. Système d'alimentation en carburant (10) selon la revendication 1,
    caractérisé en ce que
    l'installation de vanne d'arrêt (66) est commandée par la pression à la sortie de la première pompe à carburant (20).
  3. Système d'alimentation en carburant (10) selon l'une des revendications 1 ou 2,
    caractérisé en ce que
    l'installation de vanne d'arrêt (66) s'ouvre seulement lorsqu'est appliquée une pression de commande située dans la plage de la pression de fonctionnement normale de la première pompe à carburant (20) et elle se ferme pour une chute de pression jusqu'à une pression de commande inférieure à la pression de fonctionnement normale de la première pompe à carburant (20).
  4. Système d'alimentation en carburant (10) selon l'une des revendications 1 ou 2,
    caractérisé en ce que
    l'installation de vanne d'arrêt (66) ne s'ouvre seulement lorsqu'est appliquée une pression de commande située dans la plage de la pression de fonctionnement minimale de la première pompe à carburant (20) et elle se ferme pour une chute de pression à une pression de commande située en dessous de la pression de fonctionnement minimale de la première pompe à carburant (20).
  5. Système d'alimentation en carburant (10) selon l'une des revendications 3 ou 4,
    caractérisé en ce que
    l'installation de vanne d'arrêt (66) comprend un élément de précontrainte (72) qui sollicite un élément de vanne (74, 90) en position de repos, fermé.
  6. Système d'alimentation en carburant (10) selon l'une des revendications précédentes,
    caractérisé par
    une soupape de limitation de pression (36) en aval de l'installation d'arrêt (26).
  7. Système d'alimentation en carburant (10) selon la revendication 6,
    caractérisé par
    une conduite de retour (34) en aval de l'installation d'arrêt (26), cette conduite de retour dérivant de la liaison de carburant (24) vers le réservoir d'alimentation (16) et la soupape de limitation de pression (36) est installée dans la conduite de retour (34).
  8. Système d'alimentation en carburant (10) selon l'une des revendications 6 ou 7,
    caractérisé en ce qu'
    entre la sortie de la première pompe à carburant (20) et l'installation d'arrêt (26) une conduite (30) relie la liaison de carburant (24) au réservoir d'alimentation (16), cette conduite étant équipée d'un organe d'étranglement d'écoulement (32) et cette conduite (30) est reliée à un branchement de commande (102) de l'installation de vanne d'arrêt (66).
  9. Système d'alimentation en carburant (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    le branchement de commande de l'installation de vanne d'arrêt est relié à un branchement de dégazage de la première pompe à carburant.
  10. Système d'alimentation en carburant (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    l'installation de vanne d'arrêt comporte une fonction de limitation de pression branchée en parallèle sur la fonction d'arrêt.
  11. Système d'alimentation en carburant (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    l'installation de vanne d'arrêt (66) est prévue au niveau du réservoir d'alimentation (16), notamment au niveau de la première pompe à carburant (20).
  12. Système d'alimentation en carburant (10) selon la revendication 11,
    caractérisé en ce que
    la première pompe à carburant (20) et l'installation de vanne d'arrêt (66) font partie d'un module installé dans le réservoir.
  13. Moteur à combustion interne (11), notamment pour un véhicule automobile, comprenant un système d'alimentation en carburant (10) qui fournit le carburant (18) à au moins une chambre de combustion,
    caractérisé en ce que
    le système d'alimentation en carburant (10) est réalisé selon l'une des revendications 1 à 12.
EP02011015A 2001-05-29 2002-05-17 Système de combustible pour amener du combustible pour un moteur à combustion interne Expired - Lifetime EP1262658B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125942 2001-05-29
DE10125942A DE10125942A1 (de) 2001-05-29 2001-05-29 Kraftstoffsystem zum Zuliefern von Kraftstoff für eine Brennkraftmaschine, sowie Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1262658A2 EP1262658A2 (fr) 2002-12-04
EP1262658A3 EP1262658A3 (fr) 2003-04-09
EP1262658B1 true EP1262658B1 (fr) 2004-08-04

Family

ID=7686393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011015A Expired - Lifetime EP1262658B1 (fr) 2001-05-29 2002-05-17 Système de combustible pour amener du combustible pour un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP1262658B1 (fr)
JP (1) JP2002364474A (fr)
DE (2) DE10125942A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212870A1 (de) * 2002-03-22 2003-10-02 Volkswagen Ag Kraftstoffversorgungssystem einer Brennkraftmaschine mit Hochdruckeinspritzung
DE10259685A1 (de) * 2002-12-19 2004-07-01 Bayerische Motoren Werke Ag Rückführleitungsverschaltung einer Hochdruckpumpe einer Kraftstoffversorgungsanlage für eine Brennkraftmaschine
DE10305372B4 (de) * 2003-02-10 2009-01-08 Continental Automotive Gmbh Vorrichtung und Verfahren zum Erkennen von Fehlern in einem einen Kraftstoffdruckdämpfer aufweisenden Kraftstoffeinspritzsystem
DE102005003592A1 (de) * 2005-01-26 2006-08-03 Daimlerchrysler Ag Kraftstoffversorgungseinrichtung
DE102005033638A1 (de) * 2005-07-19 2007-01-25 Robert Bosch Gmbh Kraftstoff-Fördereinrichtung, insbesondere für eine Brennkraftmaschine
DE102005059160A1 (de) * 2005-12-12 2007-06-14 Robert Bosch Gmbh Kraftstoffsystem für eine Brennkraftmaschine
JP2007224833A (ja) * 2006-02-24 2007-09-06 Bosch Corp 内燃機関の燃料噴射システム
DE102010027789A1 (de) * 2010-04-15 2011-10-20 Ford Global Technologies, Llc Kraftstoffeinspritzsystem zum schnellen Druckaufbau bei erneutem Start des Verbrennungsmotors mit Stopp-Start-System
GB2507747B (en) * 2012-11-07 2014-10-08 Perkins Engines Co Ltd A pump assembly and a valve
DE102017124193A1 (de) * 2017-10-17 2019-04-18 Schwäbische Hüttenwerke Automotive GmbH Fluidpumpe mit einem Ventil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848232A1 (de) * 1978-11-07 1980-05-08 Bosch Gmbh Robert Steuereinrichtung einer kraftstoffeinspritzpumpe fuer fahrzeug-dieselbrennkraftmaschinen
US5558068A (en) * 1994-05-31 1996-09-24 Zexel Corporation Solenoid valve unit for fuel injection apparatus
JP3031222B2 (ja) * 1995-12-13 2000-04-10 三菱自動車工業株式会社 エンジンの燃料供給装置
JP3819208B2 (ja) * 2000-03-01 2006-09-06 三菱電機株式会社 可変吐出量燃料供給装置

Also Published As

Publication number Publication date
DE50200730D1 (de) 2004-09-09
JP2002364474A (ja) 2002-12-18
EP1262658A3 (fr) 2003-04-09
DE10125942A1 (de) 2002-12-12
EP1262658A2 (fr) 2002-12-04

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