EP2467591B1 - Dispositif d'alimentation en carburant pour système d'injection de carburant d'un moteur à combustion interne - Google Patents

Dispositif d'alimentation en carburant pour système d'injection de carburant d'un moteur à combustion interne Download PDF

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Publication number
EP2467591B1
EP2467591B1 EP10740608.4A EP10740608A EP2467591B1 EP 2467591 B1 EP2467591 B1 EP 2467591B1 EP 10740608 A EP10740608 A EP 10740608A EP 2467591 B1 EP2467591 B1 EP 2467591B1
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EP
European Patent Office
Prior art keywords
pressure
pump
fuel
throttle
delivery
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.)
Not-in-force
Application number
EP10740608.4A
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German (de)
English (en)
Other versions
EP2467591A1 (fr
Inventor
Guenter Veit
Sylvain Besancon
Stefan Kieferle
Paulo Jorge Ferreira Goncalves
Cord Fitschen
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 EP2467591A1 publication Critical patent/EP2467591A1/fr
Application granted granted Critical
Publication of EP2467591B1 publication Critical patent/EP2467591B1/fr
Not-in-force 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • F02D41/3854—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped with elements in the low pressure part, e.g. low pressure pump
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of 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
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/18—Feeding by means of driven pumps characterised by provision of main and auxiliary pumps
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/365—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages valves being actuated by the fluid pressure produced in an auxiliary pump, e.g. pumps with differential pistons; Regulated pressure of supply pump actuating a metering valve, e.g. a sleeve surrounding the pump piston
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/464—Inlet valves of the check valve type
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel pressure
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F02M37/0035—Thermo sensitive valves
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0056—Throttling valves, e.g. having variable opening positions throttling the flow

Definitions

  • Another mechanical or electrical actuator 52 which is located in front of or behind at least one throttle 42, can be used to the

Landscapes

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

Claims (17)

  1. Dispositif d'alimentation en carburant pour un dispositif d'injection de carburant d'un moteur à combustion interne, comprenant une pompe de refoulement (10) à commande électrique et comprenant au moins une pompe à haute pression (16) pourvue d'au moins un élément de pompe (22), du carburant étant refoulé par la pompe de refoulement (10) jusqu'au côté aspiration de la pompe à haute pression (16) et du carburant étant refoulé par la pompe à haute pression (16) dans une région de haute pression (18), comprenant un dispositif de commande électrique (46) auquel est acheminé, par le biais d'un dispositif de capteur (44), un signal pour la pression régnant dans la région de haute pression (18), et au moyen duquel l'entraînement électrique (14) de la pompe de refoulement (10) est commandé de manière variable et, à partir de la liaison (36) entre la pompe de refoulement (10) et le côté aspiration de l'au moins une pompe à haute pression (16), une liaison de dérivation (40) menant jusqu'à une région de basse pression (12 ; 17), au moins un point d'étranglement (42) étant prévu dans la liaison de dérivation (40) et, au moyen du dispositif de commande électrique (46), l'entraînement électrique (14) de la pompe de refoulement (10) étant commandé de manière variable pour le réglage d'une pression prédéfinie dans la région de haute pression (18), caractérisé en ce que le point d'étranglement (42) dans la liaison de dérivation (40) est dimensionné de telle sorte que le débit de refoulement minimal de la pompe de refoulement (10) nécessaire pour un fonctionnement correct de la pompe de refoulement (10) puisse s'écouler à travers la liaison de dérivation (40), sans que l'au moins une pompe à haute pression (16) ne refoule du carburant.
  2. Dispositif d'alimentation en carburant selon la revendication 1, caractérisé en ce que l'au moins une pompe à haute pression (16) comprend du côté aspiration pour chaque élément de pompe (22) une soupape d'admission (30) sollicitée par ressort, et en ce que la soupape d'admission (30) s'ouvre seulement lorsqu'une pression du côté aspiration de l'au moins une pompe à haute pression (16) est supérieure à la pression qui s'établit du côté aspiration de l'au moins une pompe à haute pression (16) lors du refoulement du débit de refoulement minimal de la pompe de refoulement (30).
  3. Dispositif d'alimentation en carburant selon la revendication 2, caractérisé en ce que la soupape d'admission (30) s'ouvre lorsqu'une pression absolue du côté aspiration de l'au moins une pompe à haute pression (16) est d'au moins approximativement 2 bar.
  4. Dispositif d'alimentation en carburant selon la revendication 2 ou 3, caractérisé en ce que la pompe de refoulement (10) et la soupape d'admission (30) sont adaptées l'une à l'autre de telle sorte que, lorsque la pression du côté aspiration de l'au moins une pompe à haute pression (16) est supérieure à la pression d'ouverture de la soupape d'admission (30), lors d'une modification continue de manière monotone de la pression du côté aspiration de l'au moins une pompe à haute pression (16), une modification continue de manière monotone du débit de refoulement de l'au moins une pompe à haute pression (16) se produise.
  5. Dispositif d'alimentation en carburant selon l'une quelconque des revendications précédentes, caractérisé en ce que la pompe de refoulement (10) est disposée de manière éloignée de l'au moins une pompe à haute pression (16) et est reliée au côté aspiration de l'au moins une pompe à haute pression (16) par le biais d'une conduite (36) de rigidité hydraulique élevée.
  6. Dispositif d'alimentation en carburant selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la pompe de refoulement (10) est disposée de manière éloignée de l'au moins une pompe à haute pression (16), en ce que dans la liaison entre la pompe de refoulement (10) et le côté aspiration de l'au moins une pompe à haute pression (16) est disposé un filtre à carburant (38), en ce que la liaison entre la pompe de refoulement (10) et le filtre à carburant (38) comporte une conduite (36a) de rigidité hydraulique élevée et en ce que la liaison entre le filtre à carburant (38) et le côté aspiration de l'au moins une pompe à haute pression (16) comporte une conduite (36b) de faible rigidité hydraulique.
  7. Dispositif d'alimentation en carburant selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison de dérivation (40) mène jusqu'à une région d'entraînement (17) de l'au moins une pompe à haute pression (16).
  8. Dispositif d'alimentation en carburant selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la liaison de dérivation (40) mène jusqu'à un réservoir de stockage de carburant (12).
  9. Dispositif d'alimentation en carburant selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison de dérivation (40) comprend au moins deux points d'étranglement (42) qui sont disposés parallèlement l'un à l'autre.
  10. Dispositif d'alimentation en carburant selon la revendication 9, caractérisé en ce qu'un organe de réglage supplémentaire (52) active ou désactive le point d'étranglement (42) en fonction de la pression ou de la température dans l'entrée du point d'étranglement (42).
  11. Dispositif d'alimentation en carburant selon la revendication 9, caractérisé en ce que la section transversale de l'étrangleur (42) est modifiée par un organe de réglage (44) mécanique ou électrique en fonction de la pression ou de la température dans l'entrée de l'étrangleur (42) ou de la pompe à haute pression (16).
  12. Dispositif d'alimentation en carburant selon la revendication 10, caractérisé en ce qu'une plus petite section transversale de l'étrangleur (42) est ouverte à une température élevée qu'à une température inférieure.
  13. Dispositif d'alimentation en carburant selon la revendication 11, caractérisé en ce que la section transversale de l'étrangleur (42) est réduite de manière continue lorsque la température augmente.
  14. Dispositif d'alimentation en carburant selon la revendication 10, caractérisé en ce qu'une section transversale plus petite de l'étrangleur (42) est ouverte à une pression élevée qu'à une pression faible.
  15. Dispositif d'alimentation en carburant selon la revendication 13, caractérisé en ce que la section transversale de l'étrangleur (42) est réduite de manière continue lorsque la température augmente.
  16. Dispositif d'alimentation en carburant selon les revendications 10 à 12, caractérisé en ce qu'un élément en cire commande la section transversale de l'étrangleur (42).
  17. Dispositif d'alimentation en carburant selon les revendications 1 à 7, caractérisé en ce qu'au moins un point d'étranglement (42) est un étrangleur à turbulence (50).
EP10740608.4A 2009-08-17 2010-08-02 Dispositif d'alimentation en carburant pour système d'injection de carburant d'un moteur à combustion interne Not-in-force EP2467591B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009028585 2009-08-17
DE102010031628A DE102010031628A1 (de) 2009-08-17 2010-07-21 Kraftstofffördereinrichtung für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
PCT/EP2010/061211 WO2011020693A1 (fr) 2009-08-17 2010-08-02 Dispositif d'alimentation en carburant pour système d'injection de carburant d'un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP2467591A1 EP2467591A1 (fr) 2012-06-27
EP2467591B1 true EP2467591B1 (fr) 2013-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10740608.4A Not-in-force EP2467591B1 (fr) 2009-08-17 2010-08-02 Dispositif d'alimentation en carburant pour système d'injection de carburant d'un moteur à combustion interne

Country Status (4)

Country Link
EP (1) EP2467591B1 (fr)
CN (1) CN102472209B (fr)
DE (1) DE102010031628A1 (fr)
WO (1) WO2011020693A1 (fr)

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DE102011076063A1 (de) * 2011-05-18 2012-11-22 Robert Bosch Gmbh System zum Fördern eines Fluides
DE102012203867A1 (de) * 2012-03-13 2013-09-19 Robert Bosch Gmbh Kraftstofffördereinrichtung und Verfahren zum Betätigen einer Kraftstofffördereinrichtung
GB2501289A (en) * 2012-04-18 2013-10-23 Eaton Aerospace Ltd Aircraft fuel supply system
DE102013210816A1 (de) 2013-06-10 2014-12-11 Robert Bosch Gmbh Kraftstofffördereinrichtung für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
DE102013210811A1 (de) 2013-06-10 2014-12-11 Robert Bosch Gmbh Kraftstofffördereinrichtung für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
DE102013216468A1 (de) 2013-08-20 2015-02-26 Volkswagen Aktiengesellschaft Kraftstoffförderereinrichtung und Verfahren zum Betreiben einer Kraftstofffördereinrichtung
DE102013216817A1 (de) * 2013-08-23 2015-02-26 Continental Automotive Gmbh Pumpenanordnung und System für ein Kraftfahrzeug
AT519880B1 (de) 2017-07-05 2018-11-15 Avl List Gmbh Druckregeleinrichtung für ein Kraftstoffverbrauchsmesssystem und Kraftstoffverbrauchsmesssystem
CN108266294A (zh) * 2017-12-27 2018-07-10 潍柴动力股份有限公司 发动机燃油系统及发动机
DE102018216176A1 (de) * 2018-09-21 2020-03-26 Robert Bosch Gmbh Kraftstofffördereinrichtung für eine Brennkraftmaschine
DE102018216175A1 (de) * 2018-09-21 2020-03-26 Robert Bosch Gmbh Kraftstofffördereinrichtung für eine Brennkraftmaschine

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US4579139A (en) * 1982-04-16 1986-04-01 Bowles Fluidics Corporation Siphon starter
DE19818421B4 (de) * 1998-04-24 2017-04-06 Robert Bosch Gmbh Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE19935649A1 (de) * 1999-06-08 2000-12-21 Alfmeier Praez Ag Vorwärmvorrichtung für Dieselkraftfahrzeuge
IT1320684B1 (it) 2000-10-03 2003-12-10 Fiat Ricerche Dispositivo di controllo della portata di una pompa ad alta pressionein un impianto di iniezione a collettore comune del combustibile di un
DE10148222A1 (de) * 2001-09-28 2003-04-17 Bosch Gmbh Robert Verfahren zum Betrieb einer Brennkraftmaschine
DE102007057452A1 (de) * 2007-11-29 2009-06-04 Robert Bosch Gmbh Verfahren zum Betreiben eines Kraftstoffsystems einer Brennkraftmaschine

Also Published As

Publication number Publication date
WO2011020693A1 (fr) 2011-02-24
EP2467591A1 (fr) 2012-06-27
CN102472209B (zh) 2014-06-25
DE102010031628A1 (de) 2011-02-24
CN102472209A (zh) 2012-05-23

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DE102010027958A1 (de) Pumpenanordnung

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