EP1236885A2 - Dispositif d'injection de carburant pour un moteur à combustion interne - Google Patents

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

Info

Publication number
EP1236885A2
EP1236885A2 EP02002432A EP02002432A EP1236885A2 EP 1236885 A2 EP1236885 A2 EP 1236885A2 EP 02002432 A EP02002432 A EP 02002432A EP 02002432 A EP02002432 A EP 02002432A EP 1236885 A2 EP1236885 A2 EP 1236885A2
Authority
EP
European Patent Office
Prior art keywords
control valve
control
valve member
fuel injection
pump
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
EP02002432A
Other languages
German (de)
English (en)
Other versions
EP1236885A3 (fr
EP1236885B1 (fr
Inventor
Matthias Dipl.-Ing. Beck
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
Priority claimed from DE10160256A external-priority patent/DE10160256A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1236885A2 publication Critical patent/EP1236885A2/fr
Publication of EP1236885A3 publication Critical patent/EP1236885A3/fr
Application granted granted Critical
Publication of EP1236885B1 publication Critical patent/EP1236885B1/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
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing 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
    • 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

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 injector is through the EP 0 823 549 A2 known.
  • This fuel injector has a control valve device with two electrically controlled control valves.
  • the two control valves are controlled by a single electromagnet and each have a control valve member against one Restoring force is movable between two switching positions.
  • the control valve member of a first control valve points as Part of the electromagnet has a magnetic armature that passes through Current supply to a solenoid of the electromagnet is movable is.
  • the control valve member of the second control valve is with the control valve member of the first control valve via a Spring coupled and is energized with the appropriate Solenoid coil via this coupling through the control valve member of the first control valve moves.
  • the control valve members of the Both control valves must be coaxial one behind the other be arranged, whereby the control valve means a has a large overall length.
  • the fuel injection device according to the invention with the Features according to claim 1 has the advantage that the control valve members of the control valves as desired can be arranged to each other so that the Control valve device flexible to different Installation conditions on the fuel injector can be adjusted.
  • FIG. 1 shows a Fuel injector with a Control valve device for an internal combustion engine in schematic representation
  • Figure 2 enlarges the Control valve device according to a first Embodiment
  • Figure 3 the Fuel injector according to a second Embodiment
  • Figure 4 the control valve device 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 fuel injector is as so-called pump-nozzle system or pump-line-nozzle system trained and has for each cylinder Internal combustion engine each have a fuel pump 10 Fuel injection valve 12 and one that Fuel injection valve 12 with the fuel pump 10 connecting line 14 on.
  • Fuel injection valve 12 In a pump-nozzle system the fuel pump 10 and the fuel injection valve 12 combined into one unit and the line 14 runs in this unit.
  • a pump-line-nozzle system are the fuel pump 10 and that Fuel injection valve 12 arranged separately from each other and the line 14 runs, for example, in the form of a Pipeline between these components.
  • the fuel pump 10 has a tightly guided in a cylinder 16 Pump piston 18 on by a cam 20 one Camshaft of the internal combustion engine against the force of one Return spring 21 is driven in one stroke.
  • the Pump piston 18 limits one in the cylinder 16 Pump working chamber 22, in which the pump piston 18 Fuel is compressed under high pressure.
  • the Pump workspace 22 becomes fuel from a Fuel tank 24 supplied, for example by means of a low pressure pump, not shown.
  • the fuel injection valve 12 has a valve body 26 on, which can be formed in several parts, in which a piston-shaped injection valve member 28 in a bore 30 is guided longitudinally.
  • the valve body 26 instructs its the combustion chamber of the cylinder of the internal combustion engine facing end region 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 a valve seat 36 formed in the valve body 26 cooperates, from or after which the injection openings 32 lead away.
  • In the valve body 26 is between the Injection valve member 28 and bore 30 to valve seat 36 towards an annular space 38, which is characterized by a radial Widening the bore 30 into the injection valve member 28 surrounding pressure chamber 40 passes.
  • the Injection valve member 28 has in the area of pressure chamber 40 by reducing the cross-section towards the combustion chamber Pressure shoulder 42 on. At the end facing away from the combustion chamber Injector member 28 engages a biased one Closing spring 44 through which the injection valve member 28 is pressed towards the valve seat 36.
  • the closing spring 44 is arranged in a spring chamber 46 of the valve body 26, the connects to the bore 30. To the spring chamber 46 closes at the end facing away from the bore 30 in Valve body 26 to a further bore 48 in the one Piston 50 is tightly guided.
  • the piston 50 can with the Injection valve member 28 may be connected or the piston 50 can alternatively also on the closing spring 44 and thus support indirectly on the injection valve member 28.
  • the piston 50 limited with its facing away from the spring chamber 46 Front a control pressure chamber 52 in the valve body 26. Die Line 14 opens into the pressure chamber 40.
  • the fuel injector has one Control valve device 60, which is preferably on Fuel injection valve 12 is arranged and in Figure 2 is shown according to a first embodiment.
  • the Control valve device 60 has a first electrical controlled control valve 62 and a second electrically controlled control valve 72.
  • the first control valve 62 has a control valve member 63 which is actuated by an actuator Shape of an electromagnet 64 against a restoring force, the is generated by a return spring 65, between two Switch positions is movable.
  • the electromagnet 64 will controlled by an electrical control device 61.
  • the Control valve member 63 is in a bore 66 Valve body of the control valve device 60 is displaceable guided.
  • the control valve member 63 has a Cross-sectional reduction of an approximately conical sealing surface 67 on that with a corresponding one Cross-sectional expansion of the bore 66 formed approximately conical valve seat 68 cooperates. With the Control valve member 63 is the return spring 65 thereof opposite end area a flange Magnet armature 69 of the electromagnet 64 connected. The Electromagnet 64 also has an armature 69 axially opposite fixed magnetic coil 70.
  • the first control valve 62 can be a 2/2-way or 2/3-way valve be trained.
  • the bore 66 is facing away from the magnet coil 70 End connected to a fuel-filled coupling space 71.
  • the end face of the control valve member 63 forms in the Bore 66 a movable boundary of the coupling space 71. It can be provided that the control valve member 63 with protrudes its end portion from the bore 66 and into the Coupling space 71 immersed.
  • the return spring 65 can between a wall of the coupling space 71 and the end face of the Control valve member 63 may be clamped.
  • FIG shown configuration of the control valve device 60 is the first control valve 62 by the force of Return spring 65 when the solenoid is not energized 64 in an open first switch position in which the Sealing surface 67 is lifted off the valve seat 68.
  • the second control valve 72 has a control valve member 73 on that in a bore 76 of a valve body Control valve device 60 against a restoring force is slidably guided by a return spring 75th is produced.
  • the control valve member 73 has a Cross-sectional reduction of an approximately conical sealing surface 77 on that with one by a corresponding one Cross-sectional expansion of the bore 76 formed approximately conical valve seat 78 cooperates.
  • the the Return spring 75 facing away from the Control valve member 73 is of pressure in the coupling space 71st applied.
  • the end portion of the control valve member 73 can project into the coupling space 71, for example.
  • the second Control valve 72 in an open first switching position, in which the sealing surface 77 is lifted off the valve seat 78.
  • the pressure in the coupling space 71 is sufficiently increased, so becomes the control valve member 73 of the second control valve 72 moved against the force of the return spring 75 and the second Control valve 72 in a closed second switching position switched in which the control valve member 73 with his Sealing surface 77 rests on valve seat 78.
  • the second Control valve 72 is designed as a 2/2-way valve.
  • Deviating from that described above can also be provided be that the first control valve 62 is not energized State of the electromagnet 64 in a first closed Switch position and by energizing the Electromagnet 64 in its second closed Switch position is switched. It can also be provided be that the second control valve 72 is not in energized state of the electromagnet 64 and thus depressurized coupling space 71 in a first closed Switch position and by energizing the Electromagnets 64 and thus pressure increase in the coupling space 71 is switched to its second open switch position.
  • the electromagnet 64 can be controlled with different currents, the control valve member 63 of the first control valve 62 starting from a first switch position with no current Electromagnets 64 when energized with a first one Current is moved to a second switching position and when energized with a second higher current into one third switch position is moved. Accordingly, by the control valve member 63 of the first control valve 62 in Coupling space 71 two different pressure levels set. It is envisaged that the second Control valve 72 already when a first is reached Pressure levels in the coupling space 71 in its second switching position is switched.
  • a connection of the pump work space 22 with a relief room controlled, such as the Fuel tank 24 can serve.
  • the second Control valve 72 can directly connect the Pump work room 22 or the connection of line 14 or the connection of the pressure chamber 40 with the Fuel reservoir 24 are controlled. If that second control valve 72 in its open switching position in which the connection to the Fuel tank 24 is open, so can in Pump work chamber 22, line 14 and pressure chamber 40 no high pressure build up. If the second control valve 72 in its closed switching position is switched in the the connection to the fuel tank 24 is disconnected , the line 14 in the pump work chamber 22 and the pressure chamber 40 high pressure according to the profile of the build up the pump piston 18 driving cam 20.
  • the pressure in the control pressure chamber 52 of the Fuel injector 12 controlled is controlled.
  • the control pressure chamber 52 is thereby at least indirectly with a relief space connected to serve as the fuel tank 24 can.
  • the connection between the control pressure chamber 52 and The relief chamber 24 can have a further throttle point 59 be provided.
  • the first control valve 62 When the electromagnet 64 is not energized the first control valve 62 is in a first open switch position in which the connection of the Control pressure chamber 52 opened with the pump work chamber 22 is and thus in the control pressure chamber 52 the same pressure as prevails in the pump work room 22.
  • the second control valve 72 is 64 in when the electromagnet is not energized its open position so that the pump working space 22nd is connected to the relief chamber 24.
  • the first control valve 62 is in a third, closed position, so that the second Control valve 72 because of the pressure increase in the coupling space 71 in switches its closed position.
  • the Pump workspace 22 is then from the fuel tank 24 separated, so that in the pump work room 22 and Pressure room 40 builds high pressure and that Fuel injection valve 12 opens.
  • the closed first control valve 62 is the control pressure chamber 52 from Pump work space 22 separately, so that no High pressure prevails since the control pressure chamber 52 for Relief chamber 24 is depressurized.
  • the first control valve 62 is pre-injected into a second, open closed position switched in the the connection of the control pressure chamber 52 with the Pump working space 22 is open, so that in Control pressure chamber 52 builds up high pressure and that Fuel injection valve 12 closes.
  • the second Control valve 72 remains closed Position so that the pump working space 22 from Relief chamber 24 is separated.
  • the first control valve 62 is in again brought his third, closed position, so that the Control pressure chamber 52 is depressurized and that Fuel injection valve 12 opens.
  • the first control valve 62 is in again brought its open second position while the second Control valve 62 remains closed, so that Fuel injector 12 due to the high pressure in Control pressure chamber 52 closes.
  • the first control valve 62 again in its third, brought closed position so that the control pressure chamber 52 is depressurized again and that Fuel injection valve 12 opens.
  • the first control valve 62 is in its brought the first open position and the second Control valve 72 is also in its open position brought.
  • the fuel injection device shown a second embodiment in which the Structure of the control valve device 60 is the same as in the first Embodiment is.
  • the first control valve 62 will controlled by an electric magnet 64.
  • the first Control valve 62 is at least indirectly a connection of the Pump workspace 22 with the fuel tank 24 controlled as a relief space, in this connection at least one throttle point 58 is provided.
  • the second control valve 72 is different from the first Embodiment also at least indirectly one Connection of the pump workspace 22 with the Fuel reservoir 24 controlled as a relief space.
  • the first control valve 62 thus throttles Connection of the pump workspace 22 with the Fuel tank 24 controlled and by the second Control valve 72 becomes an unthrottled connection of the Pump workspace 22 with the fuel tank 24 controlled.
  • the first control valve 62 is in his Switch position in which the throttled connection of the Pump workspace 22 with the fuel tank 24 is open and the second control valve 72 is located in its switching position, in which the unthrottled connection the pump workspace 22 with the fuel tank 24 is open.
  • the second control valve 72 due to the pressure increase in the Coupling space 71 is brought into a second switching position, in which the unthrottled connection of the pump work space 22 is separated from the fuel tank 24.
  • control valve device 160 is according to one third embodiment shown in the following essentially only those from the first embodiment deviating features are explained.
  • the Control valve member 163 of the first control valve 162 controls not directly the pressure in the coupling space 171, but instead the control valve member 163 is via a resilient element 180 for example in the form of a spring with a control piston 182 coupled, which limits the coupling space 171.
  • the Control piston 182 is supported by a return spring 165 in Coupling space 171.
  • the second control valve 172 is the same as in the first embodiment.
  • control valve device 260 is according to one fourth embodiment shown in the following essentially only those from the first embodiment deviating features are explained.
  • the Control valve member 273 of the second control valve 272 not directly affected by the pressure in the coupling space 271 but a control piston 282, which has a resilient element 280 for example in the form of a spring with the Control valve member 273 is coupled. If that Control valve member 263 of the first control valve 262 through Energization of the electromagnet 264 is moved, so leads this does not directly result in movement of the control valve member 273 of the second control valve 272 but first to one Movement of the control piston 282, in which the spring 280 is compressed.
  • the first control valve 262 is the same as trained in the first or second embodiment.
  • spring 182 or 282 can the rigidity of the Coupling between the control valve member 163 or 263 of the first control valve 162 or 262 and the control valve member 173 or 273 of the second control valve 172 or 272 targeted can be set without the volume of the coupling space 171 or 271 must be chosen very large.
  • the control valve device 60, 160, 260 can also any other connections one Fuel injector can be controlled as the Connections of the pump work space explained above 22 with the fuel tank 24 and the connection of the control pressure chamber 52 with the pump work chamber 22 or the fuel tank 24.

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)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP20020002432 2001-02-28 2002-02-01 Dispositif d'injection de carburant pour un moteur à combustion interne Expired - Lifetime EP1236885B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10109612 2001-02-28
DE10109612 2001-02-28
DE10160256A DE10160256A1 (de) 2001-02-28 2001-12-07 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10160256 2001-12-07

Publications (3)

Publication Number Publication Date
EP1236885A2 true EP1236885A2 (fr) 2002-09-04
EP1236885A3 EP1236885A3 (fr) 2004-01-21
EP1236885B1 EP1236885B1 (fr) 2005-03-30

Family

ID=26008644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020002432 Expired - Lifetime EP1236885B1 (fr) 2001-02-28 2002-02-01 Dispositif d'injection de carburant pour un moteur à combustion interne

Country Status (1)

Country Link
EP (1) EP1236885B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541860A1 (fr) * 2003-12-12 2005-06-15 Delphi Technologies, Inc. Injecteur avec soupape de commande pour commander la pression dans une chambre de commande
WO2006130262A1 (fr) * 2005-05-31 2006-12-07 Caterpillar Inc. Systeme et procede de regulation pour injecteur de carburant

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0823549A2 (fr) 1996-08-06 1998-02-11 Lucas Industries Public Limited Company Injecteur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19742320A1 (de) * 1997-09-25 1999-04-01 Bosch Gmbh Robert Kraftstoffeinspritzventil
DE19837332A1 (de) * 1998-08-18 2000-02-24 Bosch Gmbh Robert Steuereinheit zur Steuerung des Druckaufbaus in einer Pumpeneinheit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0823549A2 (fr) 1996-08-06 1998-02-11 Lucas Industries Public Limited Company Injecteur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541860A1 (fr) * 2003-12-12 2005-06-15 Delphi Technologies, Inc. Injecteur avec soupape de commande pour commander la pression dans une chambre de commande
US6997166B2 (en) 2003-12-12 2006-02-14 Delphi Technologies, Inc. Fuel injector
WO2006130262A1 (fr) * 2005-05-31 2006-12-07 Caterpillar Inc. Systeme et procede de regulation pour injecteur de carburant
US7255091B2 (en) 2005-05-31 2007-08-14 Caterpillar, Inc. Fuel injector control system and method
GB2440092A (en) * 2005-05-31 2008-01-16 Caterpillar Inc Fuel injector control system and method
GB2440092B (en) * 2005-05-31 2010-05-05 Caterpillar Inc Fuel injector control system and method

Also Published As

Publication number Publication date
EP1236885A3 (fr) 2004-01-21
EP1236885B1 (fr) 2005-03-30

Similar Documents

Publication Publication Date Title
EP1363015A1 (fr) Système d'injection de carburant pour un moteur à combustion interne
EP1316717B1 (fr) Dispositif d'injection de carburant pour un moteur à combustion interne
DE102010041109A1 (de) Kraftstoffinjektor
EP1243785A2 (fr) Système d'injection de carburant pour moteur à combustion interne
EP1236884B1 (fr) Dispositif d'injection de combustible pour moteurs à combustion interne
EP1260705B1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
DE10205185A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10062896B4 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
EP1260700A1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
EP1236885B1 (fr) Dispositif d'injection de carburant pour un moteur à combustion interne
EP1310666A2 (fr) Dispositif d'injection de carburant pour un moteur à combustion interne
EP1310668A2 (fr) Système d'injection de carburant pour un moteur à combustion
DE10207045A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10154802A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10205749A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
EP1961953A1 (fr) Soupape à plusieurs voies
EP1318293A2 (fr) Système d'injection de carburant pour moteur a combustion interne
DE10160256A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10155674A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10205750A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10162384A1 (de) Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
WO2003027490A1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
EP1593838B1 (fr) Méthode de contrôle pour influencer la vitesse d'ouverture d'une soupape de commande d'un injecteur de carburant
EP1472455A1 (fr) Procede et dispositif pour piloter une soupape de commande d'un ensemble pompe-gicleur
WO2003027481A1 (fr) Dispositif d'injection de carburant pour un moteur a combustion interne

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: A2

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

AX Request for extension of the european patent

Free format text: 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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE 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 45/12 B

Ipc: 7F 02M 59/36 B

Ipc: 7F 02M 47/02 B

Ipc: 7F 02M 59/46 B

Ipc: 7F 02M 57/02 A

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

17P Request for examination filed

Effective date: 20040721

AKX Designation fees paid

Designated state(s): DE FR GB IT SE

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 SE

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: 20050330

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: 50202599

Country of ref document: DE

Date of ref document: 20050504

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

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

Effective date: 20050718

ET Fr: translation filed
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: 20060201

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: 20060102

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: 20060901

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

Effective date: 20060201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20061031

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

Ref country code: SE

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: 20050630

Ref country code: FR

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

Effective date: 20060228