EP1284360A2 - Dispositif d'injection de carburant pour moteur à combustion interne - Google Patents

Dispositif d'injection de carburant pour moteur à combustion interne Download PDF

Info

Publication number
EP1284360A2
EP1284360A2 EP02016075A EP02016075A EP1284360A2 EP 1284360 A2 EP1284360 A2 EP 1284360A2 EP 02016075 A EP02016075 A EP 02016075A EP 02016075 A EP02016075 A EP 02016075A EP 1284360 A2 EP1284360 A2 EP 1284360A2
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
pressure
fuel
chamber
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.)
Granted
Application number
EP02016075A
Other languages
German (de)
English (en)
Other versions
EP1284360B1 (fr
EP1284360A3 (fr
Inventor
Peter Boehland
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 EP1284360A2 publication Critical patent/EP1284360A2/fr
Publication of EP1284360A3 publication Critical patent/EP1284360A3/fr
Application granted granted Critical
Publication of EP1284360B1 publication Critical patent/EP1284360B1/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
    • 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
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M59/48—Assembling; Disassembling; Replacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves

Definitions

  • the invention is based on one Fuel injection device for an internal combustion engine according to the preamble of claim 1.
  • Such a fuel injection device is by DE 28 08 731 C2 known.
  • This fuel injector has a fuel injector that is one in one Bore of a valve body slidably guided Injection valve member through which at least one Injection opening is controlled.
  • the injector member is by the in a pressure room of the Pressure prevailing against the fuel injector Force of a closing spring arranged in a spring chamber in an opening direction for releasing the at least one Injection opening movable.
  • In the spring chamber is a maintain predetermined pressure, with the spring space For example, be connected to a low pressure area can.
  • the pressure chamber of the fuel injector becomes Fuel injection from a high pressure fuel source fed under high pressure. Through an electrical controlled valve becomes a connection at least indirectly the pressure chamber or the high pressure source with one Relief chamber controlled.
  • the fuel injection device according to the invention with the Features according to claim 1 has the advantage that a pressure equalization between the Pressure chamber and the spring chamber is enabled when the pressure in the pressure chamber is less than in the spring chamber. This will avoided that the pressure in the pressure chamber below the vapor pressure of the fuel drops so that no cavitation occurs. The wear and the noise emission of the Fuel injection device according to the invention is thereby reduced.
  • FIG. 1 shows a Fuel injection device for an internal combustion engine in a schematic representation
  • Figure 2 with in Figure 1 II designated section of the Fuel injection device in an enlarged view according to a first embodiment
  • Figure 3 the Section II of the fuel injection device according to one second embodiment
  • Figure 4 the A fuel injector according to a third Embodiment.
  • FIG 1 is a fuel injection device for a Internal combustion engine, for example of a motor vehicle shown.
  • the internal combustion engine is a self-igniting Internal combustion engine and has one or more cylinders on.
  • the fuel injector points to everyone Cylinder a fuel injection valve 12.
  • execution of Fuel injector has this for everyone Internal combustion engine cylinders High pressure fuel pump 10 on.
  • the High pressure fuel pump 10 and that Fuel injection valve 12 are a so-called Pump-nozzle unit summarized.
  • the High pressure fuel pump 10 and that However, fuel injector 12 can also be separated be arranged from each other and via a line be connected.
  • the high pressure fuel pump 10 has a pump body 14, in which in a Cylinder bore 16 a pump piston 18 is tightly guided, which by a cam of a camshaft Internal combustion engine against the force of a return spring 19 is driven in one stroke.
  • the pump piston 18 limits one in the cylinder bore 16 Pump working space 22 in which the delivery stroke of Pump piston 18 fuel is compressed under high pressure.
  • the pump working space 22 is during the suction stroke of the pump piston 18 fuel from a fuel tank 24 supplied, for example by means of a feed pump.
  • the Pump work space 22 has a connection to one Relief space on than that for example the Fuel tank 24 can serve, and that of one electrically controlled valve 23 is controlled.
  • the electrically controlled valve 23 is with a Control device 25 connected.
  • the fuel injection valve 12 has a valve body 26 on, which is explained in more detail below is formed in several parts, and that with the pump body 14 connected is.
  • a valve body 26 In the valve body 26 is in a bore 30 an injection valve member 28 guided longitudinally.
  • the Bore 30 runs at least approximately parallel to Cylinder 16 of the pump body 14, however, can also be inclined run to this.
  • the valve body 26 has on its Combustion chamber of the cylinder facing the internal combustion engine End area at least one, preferably several Injection openings 32 on.
  • the injection valve member 28 has at its end area facing the combustion chamber for example, approximately conical sealing surface 34, which with one in the valve body 26 in its facing the combustion chamber End area trained, for example also about cone-shaped valve seat 36 cooperates, from or to which discharge the injection openings 32.
  • valve body 26 is between the injection valve member 28 and the bore 30 toward the valve seat 36 toward an annular space 38 available, the one facing away from the valve seat 36 End area through a radial expansion of the bore 30 in a pressure chamber 40 surrounding the injection valve member 28 transforms.
  • the injection valve member 28 has the level of Pressure chamber 40 through a reduction in cross-section Valve seat 36 having pressure shoulder 42. At the End of the injection valve member 28 facing away from the combustion chamber attacks a preloaded closing spring 44 through which the Injection valve member 28 is pressed toward the valve seat 36.
  • the closing spring 44 is arranged in a spring chamber 46, which connects to the bore 30.
  • the pressure chamber 40 is via a channel 48 running through the valve body 26 connected to the pump workspace 22.
  • the closing spring 44 is at least supported on the one hand indirectly, for example via a spring plate, on Injection valve member 28 and at least on the other hand indirectly, for example also via a spring plate 51, on an evasive piston 50.
  • the escape piston 50 is guided and points in a bore 80 of a housing part 81 at its end region facing the closing spring 44 Shaft part 52, which through a connecting bore 53 in a partition 54 of the housing part 81 between the Spring chamber 46 and one of these in the housing part 81 subsequent storage space 55 passes through.
  • the connection bore 53 has one smaller diameter than the spring chamber 46 and the Storage space 55.
  • the escape piston 50 points in the storage space 55 an area 56 with a larger diameter than that Connecting bore 53 so that a lifting movement of the Dodge piston 50 into the spring chamber 46 thereby it is limited that the area 56 of the evasive piston 50 is on the partition 54 comes to rest as a stop.
  • the Diverter piston 50 is in the bore with its area 56 80 with respect to the connection bore 53 accordingly larger diameter tightly guided.
  • the spring chamber 46 is as Bore formed in a housing part 82, which is part of the valve body 26 forms.
  • the channel 48 runs through the Housing part 82 is offset approximately parallel to spring chamber 46 this.
  • the spring chamber 46 leads from the storage chamber 55 end facing away from a bore 58 to the pump workspace 22nd down in the housing part 81.
  • the bore 58 has one smaller diameter than the bore 80.
  • the Dodge piston 50 points toward bore 58 at area 56 then a sealing surface 60, for example is approximately conical.
  • the sealing surface 60 acts with the mouth of the bore 58 in the storage space 55 on Housing part 81 together as a seat, which is also about can be conical.
  • the escape piston 50 has a shaft 62 projecting into the bore 58, the Diameter is smaller than that of the area 56.
  • the shaft 62 initially points to the sealing surface 60 much smaller diameter than the bore 58 and then a shaft area towards its free end 64 with a diameter that is only slightly smaller than that Diameter of the bore 58.
  • the shaft area 64 can have one or more flats 65 around its circumference, through the openings between the shaft portion 64 and the Bore 58 are formed through the fuel in the Storage space 55 can reach.
  • the fuel injector 12 is then connected to the Housing part 82 a further housing part 86 as part of the Arranged valve body 26 which has a bore 87, through which an end region of the injection valve member 28 passes through and protrudes into the spring chamber 46.
  • the Injection valve member 28 is supported with its end region in the Spring chamber 46 via a spring plate 88 on the closing spring 44 from.
  • the end region of the injection valve member 28 has a smaller diameter than that in the bore 30 guided area.
  • Between the housing part 86 and the Valve housing 89 is an intermediate plate 90 with a smaller one Thickness arranged.
  • the intermediate plate 90 has a bore 91 through which the end portion of the injector member 28 passes through.
  • the channel 48 runs from the pressure chamber 40 through the Valve housing 89, the intermediate disk 90, the housing part 86 and the housing part 82.
  • the housing part 82 has on it a groove 92 on the side facing the intermediate disk 83, in which the channel 48 opens and which is connected to the anteroom 85 is.
  • the channel 48 is thus via the groove 92, the antechamber 85 and bore 84 communicates with pump workspace 22.
  • the channel 48 under Bypassing the anteroom 85 directly - via a hole in the Intermediate plate 83 connected to the pump work space 22 is.
  • the washer 83 can - on its Pump body 14 facing side have a groove that is open to the pump work space 22 and into which the channel 48 opens.
  • the groove can, for example, be approximately radial to the Cylinder bore 16 extend and extends from the Cylinder bore 16 to the outside in the area of Washer 83 in which the channel 48 through this runs.
  • the connection of the pressure chamber 40 of the Fuel injection valve 12 with the pump work chamber 22 through the channel 48 in this case takes place directly below Bypassing the anteroom 85, which is in the Bore 58 to the washer 83 is limited.
  • the fuel injector 12 and the High-pressure fuel pump 10 are by means of an adapter sleeve 94 connected with each other.
  • the clamping sleeve 94 overlaps this Valve housing 89 and is in a threaded bore 95 in Pump body 14 screwed.
  • the washer 83, the Housing parts 81,82,86 and the washer 90 are between the valve housing 89 and the pump body 14 clamped.
  • the spring chamber 46 is connected to a low pressure area, for example with the fuel tank 24 or with an area in which a slightly increased pressure, for example, 2 to 5 bar is maintained.
  • Pressure chamber 40 of fuel injector 12 introduces further channel 100 down to the intermediate plate 90, the to Channel 48 is offset in the circumferential direction and this for example diametrically opposite.
  • Channel 100 settles through the washer 90 and the housing part 86 continues and opens into the spring chamber 46 in the housing part 82
  • Channel 100 is a check valve 102 is arranged to Pressure chamber 40 opens.
  • the check valve 102 has a by a closing spring 104 in the closing direction acted valve member 106-on.
  • Exemplary embodiment is the check valve 102 between the valve housing 89 and the washer 90.
  • the channel 100 is in the valve housing 89 to the washer 90 enlarged in diameter and in this is the Closing spring 104 and the valve member 106 arranged.
  • the Channel 100 has a smaller one in the intermediate disk 90 Cross section on as the valve member 106, with the mouth of the channel 100 on the side facing the valve housing 89 the intermediate plate 90 forms a valve seat 108 with which the valve member 106 cooperates and against which the Valve member 106 is pressed by the closing spring 104.
  • FIG. 3 shows a second exemplary embodiment, in which the check valve 102 in the washer 90th is arranged to receive the check valve 102 is slightly thicker than the first Embodiment.
  • the channel 100 can be in the valve housing 89 run with a constant cross-section and goes into the Washer 90 over.
  • the channel 100 a larger cross section on and in this area of the Channel 100 is the closing spring 104 and the valve member 106 arranged.
  • the channel 100 has one in the housing part 86 smaller cross section than the valve member 106, the Mouth of the channel 100 at the intermediate disk 90 facing side of the housing part 86 a valve seat 108 forms with which the valve member 106 cooperates and against which the valve member 106 is pressed by the closing spring 104 becomes.
  • the function of Fuel injector explained.
  • the pump working space 22 is activated during the suction stroke of the Pump piston 18 filled with fuel.
  • the control valve 23 is initially open, so that no high pressure build up in the pump work space 22 can. If fuel injection is to begin, then the control valve 23 by the control device 25 closed, so that the pump working space 22 from Fuel tank 24 is separated and in this High pressure builds up.
  • the pressure in the pump work room 22 and in the pressure chamber 40 is so high that the over Pressure shoulder 42 acting on the injection valve member 28 Force in the opening direction 29 is greater than the force of the Closing spring 44, the injection valve member 28 moves in opening direction 29 and gives the at least one Injection port 32 free through the fuel in the Combustion chamber of the cylinder is injected.
  • the Dodge piston 50 is in his Starting position.
  • the pressure in the pump work space 22 increases subsequently according to the profile of the pump piston 18 driving cam.
  • the Fuel injection valve 12 is only for a short time Open period and only a small amount Fuel as a pre-injection into the combustion chamber injected.
  • the amount of fuel injected is in essentially from the opening pressure of the evasive piston 50 determined, that is the pressure in the pump work chamber 22 and in Anteroom 85, in which the evasive piston 50 is its Evasion stroke movement begins.
  • the opening stroke of the Injection valve member 28 during the pre-injection can be hydraulically limited by a damping device.
  • the pressure in the pump work chamber 22 subsequently increases on according to the profile of the pump piston 18th driving cam so that on the Injection valve member 28 acting pressure force in Opening direction 29 increases again and that as a result of increased bias of the closing spring 44 increased Closing force exceeds, so that Fuel injection valve 12 opens again. Doing so larger amount of fuel over a longer period of time injected than during pre-injection. The length of time and the one injected during this main injection Amount of fuel is determined by the time at which the control valve 23 by the control device 25 again is opened. After opening the control valve 23 is the Pump workspace 22 again with the Fuel tank 24 connected so that this is relieved and the fuel injection valve 12 closes. The evasive piston 50 with the shaft part 52 is through the Force of the closing spring 44 back to its starting position moved back.
  • the spring chamber 46 If the pressure in the pressure chamber 40 is higher than in the spring chamber 46, the spring chamber 46 through the closed Check valve 102 separated from pressure chamber 40. If to Stop fuel injection control valve 23 the connection of the pump work space 22 and thus indirectly also of the pressure chamber 40 of the fuel injection valve 12 opens the relief chamber, the pressure in the pressure chamber drops 40 sharply. When the pressure in the pressure chamber 40 becomes lower than the pressure in the spring chamber 46, it opens Check valve 102 so that the pressure in the pressure chamber 40 is not can drop under the pressure prevailing in the spring chamber 46 and fuel from the spring chamber 46 into the pressure chamber 40 flows. In this way, cavitation in the pressure chamber 40 is avoided.
  • the fuel injection device according to FIG a third embodiment shown in which the Formation of the fuel injector 12 with the Check valve 102 is the same as the first or second Embodiment, but instead of High-pressure fuel pump 10 as a high-pressure accumulator 110 High pressure source serves from the fuel under high pressure supplied to the pressure chamber 40 of the fuel injection valve 12 becomes.
  • High pressure accumulator 110 is by a High pressure pump 112 fueled.
  • Between the High-pressure accumulator 110 and the pressure chamber 40 of the Fuel injector 12 is an electrically controlled one Valve 123 arranged by a control device 125 is controlled.
  • the high pressure accumulator 110 serves as Pressure source for multiple fuel injectors 12 or for all fuel injection valves 12 the Internal combustion engine.
  • the function of the Fuel injector 12 with check valve 102 is the same as explained above.

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)
EP02016075A 2001-08-10 2002-07-19 Dispositif d'injection de carburant pour moteur à combustion interne Expired - Lifetime EP1284360B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10139545 2001-08-10
DE10139545A DE10139545A1 (de) 2001-08-10 2001-08-10 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1284360A2 true EP1284360A2 (fr) 2003-02-19
EP1284360A3 EP1284360A3 (fr) 2004-03-17
EP1284360B1 EP1284360B1 (fr) 2005-05-18

Family

ID=7695168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02016075A Expired - Lifetime EP1284360B1 (fr) 2001-08-10 2002-07-19 Dispositif d'injection de carburant pour moteur à combustion interne

Country Status (4)

Country Link
US (1) US6817547B2 (fr)
EP (1) EP1284360B1 (fr)
JP (1) JP2003106242A (fr)
DE (2) DE10139545A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006026877A1 (de) * 2006-06-09 2007-12-13 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
EP2077390B1 (fr) * 2008-01-07 2012-09-05 Continental Automotive GmbH Agencement de couplage et ensemble de connexion

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823827A1 (de) * 1988-07-14 1990-01-18 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen, insbesondere pumpeduese
DE4004610A1 (de) * 1989-04-21 1990-10-25 Bosch Gmbh Robert Kraftstoffeinspritzanlage, insbesondere pumpeduese, fuer brennkraftmaschinen
US5213083A (en) * 1991-10-11 1993-05-25 Caterpillar Inc. Actuating fluid pump having priming reservoir
US6257499B1 (en) * 1994-06-06 2001-07-10 Oded E. Sturman High speed fuel injector
US5611317A (en) * 1995-08-09 1997-03-18 Cummins Engine Company, Inc. Open nozzle fuel injector having drive train wear compensation
JPH09209867A (ja) * 1996-02-07 1997-08-12 Mitsubishi Motors Corp 燃料噴射装置
DE19752834A1 (de) * 1997-11-28 1999-06-02 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen

Also Published As

Publication number Publication date
DE10139545A1 (de) 2003-02-20
EP1284360B1 (fr) 2005-05-18
US20030042334A1 (en) 2003-03-06
DE50203132D1 (de) 2005-06-23
EP1284360A3 (fr) 2004-03-17
JP2003106242A (ja) 2003-04-09
US6817547B2 (en) 2004-11-16

Similar Documents

Publication Publication Date Title
EP1636484B1 (fr) Injecteur pour moteurs a combustion interne
EP1458970B1 (fr) Dispositif d'injection de carburant pour moteurs a combustion interne
EP1490592A1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
EP1363015A1 (fr) Système d'injection de carburant pour un moteur à combustion interne
EP1402174B1 (fr) Dispositif d'injection de carburant pour moteur a combustion interne
EP1260700B1 (fr) Système d'injection de carburant pour moteur à combustion interne
DE10205185A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
WO2001031191A2 (fr) Soupape d'injection de carburant pour moteurs a combustion interne
EP1384000B1 (fr) Dispositif d'injection de carburant pour moteur a combustion
EP1284360B1 (fr) Dispositif d'injection de carburant pour moteur à combustion interne
EP1383999B1 (fr) Dispositif d'injection de carburant pour moteur a combustion
EP1260702A2 (fr) Système d'injection de carburant d'un moteur à combustion interne
EP1377745B1 (fr) Procede pour actionner une unite pompe-ajutage et unite pompe-ajutage correspondante
EP1552138B1 (fr) Systeme d'injection de carburant destine a un moteur a combustion interne
EP1606511B1 (fr) Dispositif d'injection de carburant pour moteur a combustion interne
WO2003027490A1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
EP1601870A1 (fr) Soupape d'injection de carburant pour un moteur a combustion interne
DE10337848A1 (de) Kraftstoffeinspritzventil für eine Brennkraftmaschine
DE10233101A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10162384A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10323562A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10227011A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
WO2003027481A1 (fr) Dispositif d'injection de carburant pour un moteur a combustion interne
WO2004046539A1 (fr) Soupape d'injection de carburant d'un systeme d'injection de carburant d'un moteur a combustion interne
DE10329736A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

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

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 02M 59/36 B

Ipc: 7F 02M 59/46 A

Ipc: 7F 02M 63/00 B

Ipc: 7F 02M 57/02 B

Ipc: 7F 02M 55/00 B

Ipc: 7F 02M 61/16 B

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

17P Request for examination filed

Effective date: 20040917

AKX Designation fees paid

Designated state(s): DE ES FR GB IT

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 ES FR GB IT

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050518

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50203132

Country of ref document: DE

Date of ref document: 20050623

Kind code of ref document: P

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050829

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

Effective date: 20050914

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

ET Fr: translation filed
26N No opposition filed

Effective date: 20060221

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

Ref country code: FR

Payment date: 20080718

Year of fee payment: 7

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

Ref country code: GB

Payment date: 20080723

Year of fee payment: 7

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

Effective date: 20090719

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100331

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: 20090731

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: 20090719

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

Ref country code: DE

Payment date: 20100924

Year of fee payment: 9

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: 20130201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50203132

Country of ref document: DE

Effective date: 20130201