EP1047871B1 - Systeme d'injection de carburant pour moteurs a combustion interne - Google Patents

Systeme d'injection de carburant pour moteurs a combustion interne Download PDF

Info

Publication number
EP1047871B1
EP1047871B1 EP99939946A EP99939946A EP1047871B1 EP 1047871 B1 EP1047871 B1 EP 1047871B1 EP 99939946 A EP99939946 A EP 99939946A EP 99939946 A EP99939946 A EP 99939946A EP 1047871 B1 EP1047871 B1 EP 1047871B1
Authority
EP
European Patent Office
Prior art keywords
valve
injection system
fuel injection
valve piston
fuel
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
EP99939946A
Other languages
German (de)
English (en)
Other versions
EP1047871A1 (fr
Inventor
Erwin Krimmer
Rainer Haeberer
Helmut Clauss
Tilman Miehle
Felix LANDHÄUSSER
Markus Rueckle
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 EP1047871A1 publication Critical patent/EP1047871A1/fr
Application granted granted Critical
Publication of EP1047871B1 publication Critical patent/EP1047871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • 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
    • F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
    • 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
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0045—Three-way 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
    • 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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/24—Fuel-injection apparatus with sensors

Definitions

  • the invention relates to a fuel injection system for Internal combustion engines according to the preamble of claim 1.
  • a such is known from EP 0 778 413.
  • Valve piston opening from in a radial plane on the circumference of the Valve piston arranged control openings controlled. Furthermore are in this area - for example - EP 0 299 337 and DE 195 49 108.4 known.
  • the invention is based on a so-called common rail System (CR system).
  • CR system common rail System
  • the peculiarity of such CR systems is that the amount of fuel required by a High pressure pump on a variable from each Operating state of the engine dependent pressure brought must become.
  • the high-pressure pump is dependent on the engine speed driven what z. B. can be done by camshaft drive.
  • the possible delivery rate of the high pressure pump is designed so that in an excess amount of fuel in each operating condition, i. H. more than the rail is required to build the desired pressure can.
  • Removable solution according to the invention is for a generic CR system a fuel metering unit created that is capable of the high pressure pump of the CR system which in the respective operating state of the Internal combustion engine desired amount of fuel exactly to meter.
  • Electromagnet 10 with integrated control valve 11.
  • electromagnet 10 essentially a magnet coil 12, an armature 13 with armature bolts 14 and a magnetic pot 15 which holds the magnet coil 12 and the armature 13 partially encloses.
  • the entire assembly electromagnet 10 with integrated Control valve 11 is in a (not shown) High pressure fuel pump arranged.
  • the magnetic pot 15 also serves as a sealing element magnetic yoke and as a fastening element (16) of the Electromagnet 10 in the high pressure pump.
  • the solenoid 12 is after it in the magnet housing 15th is completely overmolded.
  • By the age of 17 overmolding is an optimal heat transfer from the coil 12 to the housing 15 guaranteed. one This can cause overheating in critical operating states be counteracted.
  • the extrusion coating 17 also leads to a good vibration and shake resistance, which makes a Attachment of the fuel metering unit 10, 11 highly stressed areas, e.g. B. the high pressure fuel pump, in terms of vibrations, temperature and environmental pollution is made possible.
  • the coating 17 of the solenoid 12 in cooperation with two sealing points 18, 19 ensures that the contact points of the coil 12 to the Plug lugs (not shown) are "dry".
  • Magnet coil winding and contact points are thus in front Corrosive media attacks optimally protected.
  • the control valve 11 has a valve housing 22, which in a flange-like widening 23 merges, which at the same time the front end of the electromagnet housing 15 forms.
  • the axial bore 24 takes one displaceable sleeve-shaped valve piston 25, in whose interior 26 a compression spring 27 is arranged.
  • the Compression spring 27 is supported on the front on a bottom 28 of the Valve piston 25 and on the back of one in the Axial bore 24 of the valve housing 22 located Spring plate 29 from.
  • a paragraph 30 on the inner wall of the Valve piston 25 ensures that the compression spring 27 largely non-contact from the inner wall in the Valve piston 25 is.
  • the valve piston head is on the outside 28 and thus the valve piston 25 with the front end of the anchor bolt 14 in plant.
  • Valve housings 22 are also several radially directed Control openings arranged (see also Fig. 2 to 4), one of which can be seen in FIG. 1 and numbered 32 is.
  • the control opening 32 stands with the low pressure area the (not shown) high pressure pump in hydraulic Operatively connected.
  • Fig. 2 shows a variant in of the three control openings - with 32, 34 and 35 designated, are provided. 3, result from the special design of the middle Control opening 32 two control areas of the control valve 11, on the one hand, an area 1 with a correspondingly smaller amount Fuel delivery and on the other an area 2 with in Dependence on the valve piston stroke (magnetic stroke) linearly strong increasing fuel delivery (see FIG. 4).
  • the Range 1 low fuel delivery
  • engine idling up to assigned to the lower partial load.
  • Area 2 (strong increasing fuel delivery) corresponds to the medium partial load to full load of the internal combustion engine.
  • Area 1 is characterized in that initially only the opening area of the slot-shaped part 36 of FIG Control opening 32, plotted over the stroke of the valve piston 25 (or the anchor bolt 14), a flat characteristic has. This is numbered 37 in FIG. 4. This is good controllability of the idle and the lower Partial load of the internal combustion engine possible. This is achieved due to the narrow, rounded design of the slot-shaped part 36 of the control opening 32. Manufactured this narrow slot 36 can be eroded, Punching or laser cutting.
  • Area 2 is characterized in that the opening area - in this case all three control openings 32, 34 and 35 involved (FIG. 2) - plotted over the stroke of the valve piston 25 or the anchor bolt 14 has a steep characteristic curve, cf. Curve sections 38, 39, 40 in Fig. 4. This ensures that a correspondingly large opening area is available after a defined stroke. A short overall length and a low energy expenditure of the electromagnet 10 are thus possible.
  • large control opening areas can also be provided by a correspondingly wide slot or a control opening of correspondingly large diameter or also by several slots or bores with suitable geometries distributed around the circumference of the valve housing 22 (e.g. triangular shape).
  • the fuel meter in question is for various vehicle types (cars, commercial vehicles, special vehicles, Ships etc.), provided that they are with internal combustion engines operated, equally applicable.
  • the required Adaptation can be done in a simple manner via the design the opening areas of the valve control openings (e.g. 32, 34, 35 in Fig. 2) accomplish.
  • the minimum that can be achieved Dead volume ensures exact metering of the required Fuel quantity and quick response times to changing Quantity requirement of the high pressure pump or the internal combustion engine.
  • Fig. 5 shows four parallel Magnetic characteristics 41 to 44 with different magnetic currents as a parameter.
  • the spring characteristic (shown in dashed lines) is numbered 45.
  • Control points result in each case the interfaces of the spring characteristic 45 with the Magnetic characteristics 41 to 44.
  • a high spring stiffness (high c-value the compression spring 27) is advantageous. This will correspondingly steep transitions between the magnetic characteristic (41 or 42 or 43 or 44) and the spring characteristic 45 reached. This leads to stable control points.
  • the control of the electromagnet 10 takes place pulse width modulated.
  • An optimized control frequency gives movement ripple of the armature 13 and thus the Valve piston 25.
  • the setting process is as follows performed. First, the electromagnet 10 with a defined current applied. Then the Insert spring plate 29 into valve bore 24 so far until it comes out of the control opening (e.g. 32, Fig. 1) defined volume flow results. In this position the Spring plate 29 fixed, e.g. B. by the spring plate 29 as Press-in part is formed or the valve housing 22 of is plastically deformed on the outside. It makes sense to do this Valve set point in the range of minimum fuel flow rates because this makes the tolerance sensitive Idle range is exactly realizable.
  • the solenoid 12 is included a stage 46 has been designed. This allows the inner Space of the electromagnet 10 can be optimally used.
  • the Working air gap of the electromagnet 10 was for reasons the magnetic force optimization placed in the middle of the coil 12. Due to the non-contact guidance of the compression spring 37 in Inside the valve piston 25, the spring and Magnetic hysteresis can be kept to a minimum, so that an exact fuel metering is guaranteed.
  • the entire control valve 11 and the electromagnet 10 are kraftstoffgeflutet.
  • the control valve 11 is thus hydraulic balanced. Interferences do not affect the Metering out.
  • the flooded electromagnet 10 acts as hydraulic cushion that both interference and counteracts fretting.
  • valve piston 25 47 is opened in the valve housing 22.
  • Control opening 32 via a recess 48 on the cylindrical
  • the circumference of the valve piston 25 with the radial bore 47 hydraulically connected.
  • the radial bore 47 can - through a channel 49 - e.g. B. connected to the suction side of the pre-feed pump his.
  • the edge of the spring plate 29 on the valve side designed as an axial sealing seat 51, which with the End face 52 of the valve piston 25 on the spring plate side cooperates sealingly.
  • the annular sealing seat 51 can z. B. as an elastomer flat sealing seat or as a steel cone seat be trained.

Landscapes

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

Claims (11)

  1. Système d'injection de carburant pour des moteurs à combustion interne comportant une conduite de distribution et une pompe à haute pression entraínée en fonction du régime du moteur pour générer la pression et le débit de carburant nécessaires dans la conduite de répartition pour l'état de fonctionnement respectif du moteur à combustion interne, ainsi qu'une vanne de régulation à commande électromagnétique munie d'une unité de dosage de carburant installée dans la pompe à haute pression, une entrée (31) relié au côté de refoulement d'une pompe amont et une sortie (32, 34, 35) reliée à la zone basse pression de la pompe haute pression ainsi qu'un piston de vanne (25) sollicité en position d'ouverture par un ressort de compression (27), ce piston étant actionné par un goujon d'induit (14) de l'électro-aimant (10) vers la position de fermeture contre l'action développée par le ressort de compression avec au moins un orifice de commande radial (32, 34, 35) et de préférence plusieurs orifices prévus dans la paroi du boitier de vanne (22) et en coopération avec la région basse pression de la pompe à haute pression,
    caractérisé en ce que
    les ouvertures de commande sont formées et/ou installées pour qu'en fonction de la course du piston de vanne, on obtienne au moins deux régions de commande,
    les surfaces d'ouverture des orifices de commande tracées en fonction de la course du piston de vanne comportent dans une première région de commande (région 1) une caractéristique plate (37) dont la pente est faible et dans une seconde région de commande, plage (2) une caractéristique pentue (38, 39, 40) avec une pente importante.
  2. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    la vanne de régulation (11) fait suite axialement au boítier (15) de l'électro-aimant (10) et comporte un boítier (22) dont la face frontale comporte une ouverture axiale (31) coopérant avec le côté de pression de la pompe d'alimentation amont.
  3. Système d'injection de carburant selon l'une des revendications 1 ou 2,
    caractérisé en ce qu'
    au début de la course du piston de vanne, on a une première région de commande (région 1) associée au ralenti et à la plage des charges inférieures du moteur à combustion interne et pour la suite de la course du piston de vanne, on a une seconde région de commande (région 2) correspondant à la charge partielle et à la charge maximale du moteur à combustion interne pour les orifices de commande (32, 34, 35).
  4. Système d'injection de carburant selon l'une ou plusieurs des revendications 1 à 3,
    caractérisé en ce que
    les caractéristiques (41 - 44) de l'électro-aimant (10) sont opposées à la caractéristique (45) du ressort de compression (27) sollicitées par le piston de vanne (25).
  5. Système d'injection de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    l'électro-aimant (10) est commandé avec modulation de largeur d'impulsion par un capteur de pression - carburant installé dans la conduite distributrice (rampe commune).
  6. Système d'injecaion de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    le piston de vanne (25) est en forme de manchon et dans son volume intérieur (26) il loge le ressort de compression (27) le sollicitant en position d'ouverture ; et
    le ressort de compression (27) s'appuie par son côté arrière contre un plateau à ressort (27) prévu dans le perçage (24) du boítier de vanne (22).
  7. Système d'injection de carburant selon la revendication 6,
    caractérisé en ce que
    la vanne de régulation (11) est réglable par un coulissement axial correspondant suivi du blocage du plateau de ressort (29) dans le perçage de vanne (24).
  8. Système d'injection de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    l'ensemble de l'unité de dosage de carburant (10, 11) est intégrée directement dans la pompe à haute pression de préférence par vissage et à la fois la vanne de régulation (11) et l'électro-aimant (10) sont baignés par le carburant.
  9. Système d'injection de carburant selon la revendication 8,
    caractérisé en ce que
    la bobine (12) de l'électro-aimant (10) placée dans le boítier d'électro-aimant (15) en forme de pot est complètement enrobée par injection d'une enveloppe de matière plastique (17).
  10. Système d'injection de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    le piston de vanne (25) possède à sa surface périphérique cylindrique, un lamage (48) et le boítier de vanne (22) comporte un perçage radial (47) relié au côté aspiration de la pompe de pré alimentation, de façon qu'en position de fermeture du piston de vanne (25), les ouvertures de commande radiales (32) soient reliées par le lamage (48) du piston de vanne au perçage radial (47) du boítier de vanne (22) par une liaison hydraulique.
  11. Système d'injection de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    le bord du plateau à ressort (29) tourné vers le piston de vanne (25) comporte un siège d'étanchéité (51) axial, qui coopère en position de fermeture du piston de vanne (25) avec le bord (52) de celui-ci tourné vers le plateau à ressort (29) par une coopération étanche.
EP99939946A 1998-11-18 1999-06-25 Systeme d'injection de carburant pour moteurs a combustion interne Expired - Lifetime EP1047871B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19853103 1998-11-18
DE19853103A DE19853103A1 (de) 1998-11-18 1998-11-18 Kraftstoffeinspritzsystem für Brennkraftmaschinen
PCT/DE1999/001848 WO2000029742A1 (fr) 1998-11-18 1999-06-25 Systeme d'injection de carburant pour moteurs a combustion interne

Publications (2)

Publication Number Publication Date
EP1047871A1 EP1047871A1 (fr) 2000-11-02
EP1047871B1 true EP1047871B1 (fr) 2004-01-28

Family

ID=7888157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99939946A Expired - Lifetime EP1047871B1 (fr) 1998-11-18 1999-06-25 Systeme d'injection de carburant pour moteurs a combustion interne

Country Status (5)

Country Link
US (1) US6446606B1 (fr)
EP (1) EP1047871B1 (fr)
JP (1) JP4358445B2 (fr)
DE (2) DE19853103A1 (fr)
WO (1) WO2000029742A1 (fr)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002004977A (ja) * 2000-06-26 2002-01-09 Denso Corp 流量制御装置
DE10146740A1 (de) 2001-09-22 2003-04-10 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
JP4841772B2 (ja) * 2001-09-28 2011-12-21 いすゞ自動車株式会社 コモンレール式燃料噴射制御装置
DE10149746C1 (de) * 2001-10-09 2003-05-28 Siemens Ag Verfahren zur Herstellung einer Rohrfeder sowie Aktoreinheit mit einer solchen Rohrfeder
JP3630304B2 (ja) * 2001-10-15 2005-03-16 株式会社ボッシュオートモーティブシステム 燃料液流量調節弁、及び該燃料液流量調節弁を備えた内燃機関の燃料噴射システム
JP2003120468A (ja) * 2001-10-15 2003-04-23 Bosch Automotive Systems Corp 燃料液流量調節弁、及び該燃料液流量調節弁を備えた内燃機関の燃料噴射システム
JP2005299683A (ja) 2001-11-27 2005-10-27 Bosch Corp 液体の流量制御弁および可動子のためのアンカー
EP1321663A3 (fr) 2001-12-19 2003-07-02 Robert Bosch Gmbh Dispositif d'injection de combustible pour moteur à combustion interne
DE10205187A1 (de) 2002-02-08 2003-08-21 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10205811A1 (de) * 2002-02-13 2003-08-21 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10206236B4 (de) 2002-02-15 2019-06-19 Robert Bosch Gmbh Kraftstoffeinpritzeinrichtung für eine Brennkraftmaschine
DE10218021A1 (de) 2002-04-23 2003-11-06 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
AU2003273426A1 (en) 2002-07-11 2004-02-02 Siemens Automotive Hydraulics Sa Device for controlling flow rate of a direct injection fuel pump
DE10242219A1 (de) * 2002-09-12 2004-03-25 Robert Bosch Gmbh Kraftstoffzumesseinheit für eine Kraftstoffeinspritzanlage
DE10244551A1 (de) 2002-09-25 2004-04-08 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10247145A1 (de) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Durchflussregeleinrichtung, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
DE10251014A1 (de) 2002-11-02 2004-05-19 Robert Bosch Gmbh Kraftstoffzumesseinheit für Kraftstoffeinspritzanlagen von Brennkraftmaschinen
DE10257134A1 (de) * 2002-12-06 2004-06-24 Robert Bosch Gmbh Vorrichtung zur Aufrechterhaltung eines Solldruckes im Kraftstoff-Hochdruckspeicher eines Speichereinspritzsystems
DE10305947A1 (de) 2003-02-12 2004-08-26 Robert Bosch Gmbh Expansionsorgan für eine Klimaanlage
AU2003227486A1 (en) * 2003-04-11 2004-11-04 Bosch Automotive Systems Corporation Liquid fuel flow regulating valve, and fuel injection system of internal combustion engine with the liquid fuel flow regulating valve
DE10324010A1 (de) * 2003-05-27 2004-12-16 Robert Bosch Gmbh Einrichtung zur Einstellung eines veränderlichen Durchflussquerschnitts
US7387109B2 (en) * 2003-10-21 2008-06-17 Robert Bosch Gmbh High-pressure fuel pump for an internal combustion engine
DE602005003427T2 (de) * 2004-09-24 2008-09-18 Denso Corporation, Kariya Durchflussregelventil
US7819637B2 (en) * 2004-12-17 2010-10-26 Denso Corporation Solenoid valve, flow-metering valve, high-pressure fuel pump and fuel injection pump
JP2007092714A (ja) * 2005-09-30 2007-04-12 Denso Corp 調量弁およびそれを用いた燃料噴射ポンプ
US20070246015A1 (en) * 2006-04-19 2007-10-25 Alejandro Moreno Solenoid-operated valve with coil for sensing plunger position
DE102006061558A1 (de) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Kraftstoff-Fördereinrichtung für eine Brennkraftmaschine
DE102007026833A1 (de) * 2007-06-06 2008-12-11 Hydraulik-Ring Gmbh Volumenstromsteuerventil
DE102007044001B4 (de) 2007-09-14 2019-08-01 Robert Bosch Gmbh Verfahren zur Steuerung eines Kraftstoffeinspritzsystems einer Brennkraftmaschine
DE102007050297A1 (de) 2007-10-22 2009-04-23 Robert Bosch Gmbh Verfahren zur Steuerung eines Kraftstoffeinspritzsystems einer Brennkraftmaschine
JP5157976B2 (ja) * 2009-03-13 2013-03-06 株式会社デンソー 流量制御電磁弁
US8585014B2 (en) * 2009-05-13 2013-11-19 Keihin Corporation Linear solenoid and valve device using the same
DE102009028501A1 (de) * 2009-08-13 2011-02-17 Robert Bosch Gmbh Kraftstoffzumesseinrichtung für eine Kraftstoffeinspritzanlage
JP2011077355A (ja) * 2009-09-30 2011-04-14 Keihin Corp リニアソレノイド及びそれを用いたバルブ装置
IT1398734B1 (it) * 2010-03-04 2013-03-18 Bosch Gmbh Robert Impianto per l'alimentazione di carburante ad un motore a combustione interna
DE102011051656A1 (de) 2011-07-07 2013-01-10 Hydraulik-Ring Gmbh Schwenkmotorversteller
DE102011087701A1 (de) * 2011-12-05 2013-06-06 Robert Bosch Gmbh Niederdruckeinheit für eine Pumpe, insbesondere eine Kraftstoffhochdruckpumpe einer Kraftstoffeinspritzeinrichtung
DE102012106134A1 (de) * 2012-07-09 2014-01-09 Svm Schultz Verwaltungs-Gmbh & Co. Kg Ventil
CN103075285A (zh) * 2013-02-05 2013-05-01 李正富 高压共轨燃油计量阀
WO2015043637A1 (fr) * 2013-09-26 2015-04-02 Robert Bosch Gmbh Ensemble doseur
DE102013224296A1 (de) * 2013-11-27 2015-05-28 Robert Bosch Gmbh Elektrische Steckvorrichtung zum Anschluss einer Magnetspule und/oder eines Sensorelements
US9739203B2 (en) * 2014-05-15 2017-08-22 Hamilton Sundstrand Corporation Fuel metering valve and method of managing fuel in a metering valve
DE102014220757A1 (de) * 2014-10-14 2016-04-14 Robert Bosch Gmbh Elektromagnetisch betätigbares Saugventil, Hochdruckpumpe mit einem solchen Saugventil sowie Verfahren zur Verbindung eines solchen Saugventils mit einem Gehäuseteil einer Hochdruckpumpe
DE102018212882A1 (de) * 2018-08-02 2020-02-06 Robert Bosch Gmbh Fluidventilvorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2042541C3 (de) * 1970-08-27 1973-09-27 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffeinspntzanlage fur Fahrzeuggasturbinen
US4462372A (en) * 1982-09-30 1984-07-31 Jackson Maurus E Fuel injection system
CH674243A5 (fr) * 1987-07-08 1990-05-15 Dereco Dieselmotoren Forschung
US5092299A (en) * 1990-11-30 1992-03-03 Cummins Engine Company, Inc. Air fuel control for a PT fuel system
ATE169720T1 (de) * 1993-11-08 1998-08-15 Sig Schweiz Industrieges Steuereinrichtung für eine füllgrad-verstellpumpe
US5639066A (en) * 1995-06-15 1997-06-17 Applied Power Inc. Bidirectional flow control valve
DE19540021A1 (de) * 1995-10-27 1997-04-30 Bosch Gmbh Robert Ventil zum dosierten Einleiten von aus einem Brennstofftank einer Brennkraftmaschine verflüchtigtem Brennstoffdampf
FR2741672A1 (fr) * 1995-11-29 1997-05-30 Lucas Ind Plc Systeme d'alimentation de carburant
DE19549108A1 (de) * 1995-12-29 1997-07-03 Bosch Gmbh Robert System zur Kraftstoffhochdruckerzeugung für ein in Brennkraftmaschinen eingesetztes Kraftstoffeinspritzsystem

Also Published As

Publication number Publication date
US6446606B1 (en) 2002-09-10
JP2002530568A (ja) 2002-09-17
EP1047871A1 (fr) 2000-11-02
DE19853103A1 (de) 2000-05-25
JP4358445B2 (ja) 2009-11-04
DE59908419D1 (de) 2004-03-04
WO2000029742A1 (fr) 2000-05-25

Similar Documents

Publication Publication Date Title
EP1047871B1 (fr) Systeme d'injection de carburant pour moteurs a combustion interne
DE602005003427T2 (de) Durchflussregelventil
EP1042608B1 (fr) Installation d'alimentation en carburant d'un moteur a combustion interne
DE19959324B4 (de) Solenoid-Steuerventil
DE102005058846B4 (de) Ventilbaukastensystem mit elektromagnetisch betätigtem Ventil
DE3541938C2 (de) Magnet-Überströmventil
CH668621A5 (de) Kraftstoffeinspritzanlage fuer eine brennkraftmaschine.
DE102007000070B4 (de) Pulsdauerverhältnissteuervorrichtung
EP1561026B1 (fr) Unite de dosage de carburant pour systemes d'injection de carburant de moteurs a combustion
DE60215591T2 (de) Kraftsoffeinspritzventil
DE68913209T2 (de) Elektrisch betätigbares ventil für kraftstoff-einspritzanlagen für brennkraftmaschinen.
DE1932600B2 (de) Kraftstoffeinspritzanlage fuer selbstzuendende brennkraftmaschinen mit aenderung des spritzbeginns
EP0236691A2 (fr) Pompe d'injection de combustible pour moteurs à combustion interne
EP2884091B1 (fr) Soupape d'injection de combustible
DE68904451T2 (de) Hochdruck-brennstoffeinspritzvorrichtung fuer motoren.
EP1799999B1 (fr) Systeme de carburant pour un moteur a combustion interne
EP2321519B1 (fr) Dispositif d'alimentation en carburant d'un moteur à combustion interne
DE102012211395A1 (de) Zumesseinheit
DE102011083154A1 (de) Druckregelsystem und Druckregelventil
WO2004027251A1 (fr) Unite de dosage de carburant conçue pour un dispositif d'injection de carburant
DE19602474A1 (de) Einspritzzeitpunkt-Steuervorrichtung für eine Kraftstoffeinspritzpumpe
WO2002033244A1 (fr) Soupape d"injection de carburant
DE112019005689T5 (de) Elektromechanisches Ventil und Montageverfahren
DE10257134A1 (de) Vorrichtung zur Aufrechterhaltung eines Solldruckes im Kraftstoff-Hochdruckspeicher eines Speichereinspritzsystems
DE102012205342A1 (de) Hochdruckpumpe für ein Kraftstoffeinspritzsystem

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 20001127

17Q First examination report despatched

Effective date: 20030211

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59908419

Country of ref document: DE

Date of ref document: 20040304

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040416

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20041029

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120705

Year of fee payment: 14

Ref country code: GB

Payment date: 20120621

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120621

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130625

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130701

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130625

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160810

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59908419

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180103