EP1283355B1 - Kraftstoffeinspritzventil - Google Patents

Kraftstoffeinspritzventil Download PDF

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Publication number
EP1283355B1
EP1283355B1 EP20020255320 EP02255320A EP1283355B1 EP 1283355 B1 EP1283355 B1 EP 1283355B1 EP 20020255320 EP20020255320 EP 20020255320 EP 02255320 A EP02255320 A EP 02255320A EP 1283355 B1 EP1283355 B1 EP 1283355B1
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EP
European Patent Office
Prior art keywords
fuel
chamber
pump
control
armature
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
EP20020255320
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English (en)
French (fr)
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EP1283355A1 (de
Inventor
Paul Buckley
Malcolm David Dick Lambert
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Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1283355A1 publication Critical patent/EP1283355A1/de
Application granted granted Critical
Publication of EP1283355B1 publication Critical patent/EP1283355B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically

Definitions

  • This invention relates to a fuel injector for use in supplying fuel under pressure to a combustion space of an associated internal combustion engine.
  • the invention relates to a unit/pump injector of the type including a pump for supplying fuel exclusively to the injection nozzle of the injector, and not to other injection nozzles associated with the engine.
  • the timing of fuel injection from an injection nozzle is controlled independently of the timing of commencement of fuel pressurisation by the pump by controlling the fuel pressure within a control chamber of the nozzle.
  • the injection nozzle includes a valve needle which is engageable with a valve needle seating to control fuel delivery through an outlet opening of the injection nozzle. A surface associated with the valve needle is exposed to the fuel pressure within the control chamber.
  • Fuel pressure within the control chamber is controlled by means of an electromagnetically actuable three way valve operable to permit communication between the control chamber and either a supply passage containing fuel under pressure or a drain passage which communicates, in use, with a relatively low pressure fuel reservoir.
  • the unit/pump injector also includes a spill valve arrangement which is arranged to control communication between the low pressure fuel reservoir and a pump chamber defined, at least in part, within a bore in a pump housing.
  • a plunger member is reciprocable within the plunger bore so as to vary the volume of the pump chamber, the spill valve arrangement being operable between an open position in which the pump chamber communicates with the low pressure reservoir, in which case reciprocal movement of the plunger member causes fuel to be displaced from the pump chamber to the low pressure fuel reservoir, and a closed position in which communication between the pump chamber and the low pressure fuel reservoir is broken.
  • the spill valve arrangement When the spill valve arrangement is closed, movement of the plunger member within the plunger bore, in a direction to reduce the volume of the pump chamber, causes fuel within the chamber to be pressurised. High pressure fuel within the pump chamber is delivered to the associated injection nozzle through a supply passage.
  • EP0845791 discloses an injector having a control chamber and a valve arranged to control the fuel pressure within the control chamber.
  • the injector further includes a spill valve which controls the pressurisation of fuel within a pump chamber by controlling communication between the pump chamber and a low pressure reservoir.
  • a spill valve which controls the pressurisation of fuel within a pump chamber by controlling communication between the pump chamber and a low pressure reservoir.
  • US 4,982,713 discloses an injector including a pumping piston reciprocable within a pump chamber which pumps fuel at injection pressure to an injection nozzle as long as a control valve prevents fuel flowing from a pump chamber to a low pressure chamber.
  • the fuel injector is provided with a venturi pump to remove fuel from the pump work chamber so as to prevent an unintentional injection.
  • a unit-pump fuel injector comprising a valve needle which is slidable within a bore and engageable with a valve needle seating to control fuel delivery through an outlet opening, a fuel supply passage for delivering fuel under high pressure to the bore from a pump chamber, the valve needle having a surface associated therewith which is exposed to fuel pressure within a control chamber, the control chamber being arranged to receive high pressure fuel from the fuel supply passage whereby fuel pressure within the control chamber urges the valve needle into engagement with the valve needle seating.
  • the injector further comprises a control valve arrangement for controlling fuel pressure within the control chamber so as to control movement of the valve needle relative to the valve needle seating and a spill/fill passage through which fuel at relatively low pressure is delivered to the pump chamber under the control of a spill valve arrangement.
  • the fuel injector is characterised in that the spill/fill passage is provided with a venturi pump including an inlet cone region in communication with the spill/fill passage, an outlet cone region in communication with a backleak passage and a throat region intermediate the inlet and outlet cone regions and being in communication with a return passage via a feed port such that a vacuum is drawn within the return passage when fuel flows through the throat region and through the backleak passage to a low pressure fuel reservoir.
  • a part of the throat region immediately downstream of the feed port is of greater cross-sectional area than a part of the throat region immediately upstream of the feed port.
  • the spill valve arrangement includes a spill valve member which is operable under the control of a first actuator arrangement.
  • the first actuator arrangement includes a first energisable winding and a first armature which is coupled to the spill valve member such that energisation and deenergisation of the first winding causes the first armature, and hence the spill valve member, to move.
  • the spill valve member is preferably arranged within a first armature chamber, the return passage being arranged to communicate with the first armature chamber such that a vacuum is drawn therein.
  • Communication between the return passage and the first armature chamber serves to reduce pressure waves within the first armature chamber which may otherwise cause unwanted movement of the spill valve member.
  • the control valve arrangement preferably includes a control valve member which is operable under the control of a second actuator arrangement.
  • the second actuator arrangement may be an electromagnetic actuator arrangement comprising a second energisable winding and preferably including a second armature which is coupled to the control valve member. Energisation and deenergisation of the second winding causes the second armature, and hence the control valve member, to move between an open position in which the control chamber communicates with the low pressure fuel reservoir and a closed position in which communication between the control chamber and the low pressure fuel reservoir is broken, thereby to control fuel pressure within the control chamber.
  • the second armature is preferably arranged within a second armature chamber, the return passage being arranged to communicate with the second armature chamber such that a vacuum is drawn in the second armature chamber.
  • the injector may also include a plunger member which is arranged to pressurise fuel within a pump chamber upon reciprocal movement of the plunger member within a plunger bore, the plunger member having, associated therewith, a leak collection chamber, preferably defined by a groove or recess provided on the plunger member, within which leakage fuel from the pump chamber collects.
  • the leak collection chamber may be arranged to communicate with the return passage such that a vacuum is drawn therein.
  • the unit pump/injector illustrated in the accompanying drawings comprises an injection nozzle having a nozzle body 10 which is provided with a blind bore 12 within which a valve needle 14 is slidable.
  • the valve needle 14 is engagable with a valve needle seating defined by the blind end of the bore 12 to control fuel delivery from a delivery chamber defined by the valve needle 14 and the bore 12, and a plurality of outlet openings (not shown) located downstream of the valve needle seating.
  • the bore 12 is shaped to define an annular chamber 16 for receiving fuel under high pressure through a supply passage 18 defined in various housing parts of the injector. In use, the supply passage 18 receives fuel under high pressure from a pump chamber 20 defined, in part, within a plunger bore 24 provided in a pump housing 22.
  • a plunger member 26 is reciprocable within the plunger bore 24 under the action of a cam arrangement in a conventional manner, so as to cause pressurisation of fuel within the pump chamber 20.
  • the plunger member 26 is provided with a groove or recess 27 to define a leak collection chamber within which leakage fuel from the pump chamber 20 collects.
  • the unit pump/injector includes a spill valve arrangement 60, as shown in detail in Figure 4, for controlling communication between the pump chamber 20 and a source of fuel at relatively low pressure.
  • the spill valve arrangement 60 includes a spill valve member 62 which is coupled to a spill valve armature 64 of a first electromagnetic actuator arrangement (not shown) arranged within an actuator housing 66 adjacent the pump housing 22.
  • the spill valve armature 64 is arranged within a spill valve armature chamber 68 defined in the pump housing 22. In use, movement of the spill valve armature 64, and hence of the spill valve member 62, is controlled by energising and de-energising an electromagnetic winding of the first actuator arrangement.
  • the spill valve member 62 is moveable within a bore 65 provided in the pump housing 22 and includes a region 62 a of enlarged diameter which is engageable with a spill valve seating 65 a defined by the bore 65.
  • a drilling 67 provided in the pump housing 22 which communicates with the pump chamber 20 is able to communicate with a spill/fill passage 28 defined partially in the pump housing 22 and partially within an additional housing 29 adjacent the pump housing 22 (as shown in Figure 3).
  • the nozzle body 10 At its end remote from the outlet openings of the injection nozzle, the nozzle body 10 abuts a further housing 30 within which a control chamber 32 for fuel is defined.
  • the control chamber 32 receives fuel under high pressure from the supply passage 18 through a restricted drilling 33.
  • a piston member 34 is slidable within a piston bore provided in the further housing 30.
  • the piston member 34 is coupled to the valve needle 14, a surface of the piston member 34 being exposed to fuel pressure within the control chamber 32 such that fuel pressure within the control chamber 32 applies a force to the piston member 34, and hence to the valve needle 14, which serves to urge the valve needle 14 against the valve needle seating.
  • a nozzle spring is also preferably provided at the back end of the valve needle 14, which tends to urge the valve needle towards its seating.
  • the unit pump/injector also includes a control valve arrangement, referred to generally as 36, which is arranged to control communication between the control chamber 32 and the low pressure fuel reservoir.
  • the control valve arrangement 36 is arranged within a control valve housing 44 and includes a control valve member 38 which is coupled to a control valve armature 40 forming part of a second actuator arrangement.
  • the control valve armature 40 of the control valve arrangement 36 is arranged within a control valve armature chamber 42 defined within the control valve housing 44.
  • the actuator for the control valve arrangement 36 takes the form of an electromagnetic actuator arrangement including a second winding which is energisable to cause movement of the control valve armature 40 and, hence, movement of the control valve member 38.
  • the control valve member 38 is moveable between an open position in which fuel is able to flow from the control chamber 32 to the low pressure fuel reservoir and a closed position in which communication between the control chamber 32 and the low pressure fuel reservoir is broken.
  • the spill/fill passage 28 is provided with a venturi pump device 48, the venturi pump 48 being arranged such that the spill/fill passage 28 communicates, through the venturi pump 48, with a backleak passage 46 defined, at least in part, within the control valve housing 44.
  • a proportion of fuel drawn into and displaced from the pump chamber 20 when the spill valve arrangement is open will escape into the backleak passage 46 at a relatively low rate and to the low pressure fuel reservoir, to be replaced by cooler fuel drawn into the spill/fill passage 28 from the low pressure fuel reservoir.
  • the backleak passage 46 is therefore provided to facilitate the cooling of fuel within the unit pump/injector system.
  • the venturi pump 48 includes an inlet region 48 a , an outlet region 48 b and a throat region 48 c arranged intermediate the inlet and outlet regions 48 a , 48 b .
  • the throat region 48 c is provided with a feed port 48 d which communicates, through a restricted passage 50, with a return passage 52 defined by drillings provided in the additional housing 29 and the pump housing 22.
  • the throat region 48 c has a substantially uniform, relatively small diameter along its axial length. A part of the throat region 48 c immediately downstream of the feed port 48 d is of greater cross-sectional area than the part of the throat region 48 c immediately upstream of the feed port 48 d .
  • any flow of fuel through the feed port 48 d does not result in a significant increase in the velocity of fuel flowing past the end of the feed port 48 d and, thus, a relatively large magnitude vacuum is drawn within the throat region 48 c .
  • the return passage 52 communicates with the spill valve armature chamber 68 within which the spill valve armature 64 is arranged and, in addition, communicates with a branch passage 56 in communication with the control valve armature chamber 42 (as shown in Figures 1 and 2) within which the control valve armature 40 is arranged.
  • a vacuum will be drawn in both armature chambers, as will be described in further detail hereinafter.
  • the venturi pump 48 also communicates, by way of the return passage 52, with the groove 27 in the plunger member 26 within which leakage fuel from the pump chamber 20 collects such that a vacuum is also drawn in the groove 27.
  • venturi pump 48 may include a venturi pump body defining a flow passage within which a throat member is received, the throat member being shaped to define the throat region of the venturi pump.
  • the spill valve member 62 In use, when it is desired to cause pressurisation of fuel within the pump chamber 20, the spill valve member 62 is moved to its seated position (i.e. its closed state) such that reciprocal movement of the plunger member 26 within the plunger bore 24 under the action of the cam arrangement causes fuel within the pump chamber 20 to be pressurised. Fuel under high pressure is therefore delivered to the supply passage 18 and, hence, to the annular chamber 16 and the delivery chamber of the injection nozzle. Fuel under high pressure is also able to flow through the restricted passage 33 into the control chamber 32 at a relatively low rate.
  • control valve arrangement 36 If the control valve arrangement 36 is in its closed position, such that communication between the control chamber 32 and the low pressure fuel reservoir is broken, high pressure fuel within the control chamber 32 applies a force to the piston member 34 which serves to urge the valve needle 14 against its seating. Fuel injection does not therefore take place.
  • control valve arrangement 36 When injection is to be commenced, the control valve arrangement 36 is actuated such that the control valve member 38 is moved to its open position and communication between the control chamber 32 and the low pressure fuel reservoir is opened. Fuel within the control chamber 32 is therefore able to escape to low pressure such that fuel pressure within the control chamber 32 is reduced and, therefore, a reduced force is applied to the piston member 34 and, hence, to the valve needle 14. A point will be reached when the force due to high pressure fuel within the delivery chamber acting on the valve needle 14 is sufficient to overcome the reduced force which acts on the valve needle 14 due to reduced fuel pressure within the control chamber 32 such that the valve needle 14 is urged away from its seating.
  • valve needle 14 When the valve needle 14 is lifted away from the valve needle seating, fuel within the delivery chamber is able to flow past the valve needle seating and into the engine cylinder or other combustion space. It will therefore be appreciated that the timing of injection of fuel delivery by the injector can be controlled by means of the control valve arrangement 36, and the timing of pressurisation of fuel within the pump chamber 20 can be controlled by means of the spill valve arrangement 60.
  • the spill valve member 62 On terminating injection at the end of an injection cycle, the spill valve member 62 may be moved out of engagement with the spill valve seating 65 a such that the pump chamber 20 is able to communicate, via the drilling 67, with the low pressure fuel reservoir, thereby causing fuel pressure within the pump chamber 20 to be reduced.
  • the control valve arrangement 36 At about the same time as the spill valve member 62 is moved to its open position, and preferably just before, the control valve arrangement 36 is closed. This has the result that the forces acting on the valve needle 14 urging the valve needle 14 away from the valve needle seating are reduced rapidly, assisting the increased fuel pressure within the control chamber 32 due to closure of the control valve arrangement 36 and giving rise to a rapid termination of injection. This is particularly advantageous where a main injection is to be terminated.
  • a vacuum is also drawn in the groove or recess 27 provided on the plunger member 26 as the groove 27 also communicates, via the return passage 52, with the throat region 48 c of the venturi pump 48.
  • the connection of the venturi pump 48 to the leak collection groove 27 provides the additional advantage that the exchange of engine oils and fuel is minimised.
  • the return passage 52 may be arranged to communicate only with the spill valve armature chamber 64, or only with the control valve armature chamber 42, to prevent unwanted vibration of one or the other of the spill valve member 62 or the control valve member 38.
  • the return passage 52 is arranged to communicate with at least the control valve armature chamber 42 to prevent unwanted movement of the control valve member 38.

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

Claims (8)

  1. Pumpen-Kraftstoffeinspritzventil-Einheit, umfassend:
    eine Ventilnadel (14), die innerhalb einer Bohrung (12) bewegbar angeordnet ist und an einem Ventilnadelsitz zur Anlage gelangen kann, um die Abgabe von Kraftstoff durch eine Auslassöffnung zu steuern; und
    einen Kraftstoffversorgungskanal (18) zur Abgabe von unter hohem Druck stehendem Kraftstoff aus einer Pumpenkammer (20) an die Bohrung, wobei die Ventilnadel (14) eine zu ihr gehörende oder mit ihr verbundene Oberfläche aufweist, die dem Kraftstoffdruck innerhalb einer Steuerkammer (32) ausgesetzt ist und wobei die Steuerkammer (32) so angeordnet ist, dass sie unter hohem Druck stehenden Kraftstoff aus dem Versorgungskanal (18) erhält, wodurch der Kraftstoffdruck innerhalb der Steuerkammer (32) die Ventilnadel (14) in Anlage mit dem Ventilnadelsitz drückt; wobei das Einspritzventil weiterhin umfasst:
    eine Steuerventilanordnung (36) zum Steuern des Kraftstoffdrucks innerhalb der Steuerkammer (32), wodurch die Bewegung der Ventilnadel (14) relativ zum Ventilnadelsitz gesteuert werden kann; und
    einen Überström-/Füllkanal (28), durch den Kraftstoff mit relativ geringem Druck unter der Steuerung einer Überströmventilanordnung (60) an die Pumpenkammer (20) abgegeben wird;
    worin die Pumpen-Kraftstoffeinspritzventil-Einheit dadurch gekennzeichnet ist, dass der Überström-/Füllkanal (28) mit einer Venturipumpe (48) ausgestattet ist, welche umfasst:
    einen kegelförmigen Einlassbereich (48a) in Verbindung mit dem Überström-/Füllkanal (28);
    einen kegelförmigen Auslassbereich (48b) in Verbindung mit einem Rücklaufkanal (46); und
    einen Durchlass- bzw. Kehlenbereich (48c) zwischen dem kegelförmigen Einlass- und dem kegelförmigen Auslassbereich (48a,48b), wobei der Durchlass- bzw. Kehlenbereich über einen Mündungsanschluss (48d) mit einem Rückführungskanal (52) in Verbindung steht, derart, dass innerhalb des Rückführungskanals (52) ein Vakuum gezogen wird, wenn Kraftstoff durch den Durchlass- bzw. Kehlenbereich (48c) und durch den Rücklaufkanal (46) zu einem Niederdruck-Kraftstoffspeicher fließt, und worin ein Teil des Durchlass- bzw. Kehlenbereichs (48c) unmittelbar stromabwärts des Mündungsanschlusses (48d) eine größere Querschnittsfläche besitzt als ein Teil des Durchlass- bzw. Kehlenbereichs (48c) unmittelbar stromaufwärts des Mündungsanschlusses (48d).
  2. Pumpen-Kraftstoffeinspritzventil-Einheit nach Anspruch 1, worin die Überströmventilanordnung (60) einen ersten Anker (64) umfasst, der an ein Überströmventilelement (62) gekoppelt ist, wobei der erste Anker (64) innerhalb einer ersten Ankerkammer (68) angeordnet ist und der Rückführungskanal (52) so angeordnet ist, dass der mit der ersten Ankerkammer (68) in Verbindung steht, derart, dass in der ersten Ankerkammer (68) ein Vakuum gezogen wird.
  3. Pumpen-Kraftstoffeinspritzventil-Einheit nach Anspruch 1 oder Anspruch 2, wobei die Steuerventilanordnung (36) einen zweiten Anker (40) umfasst, der an ein Steuerventil-Element (38) gekoppelt ist, wobei der zweite Anker (40) innerhalb einer zweiten Ankerkammer (42) angeordnet ist und der Rückführungskanal (52) so angeordnet ist, dass er mit der zweiten Ankerkammer (42) in Verbindung steht, derart, dass ein Vakuum in der zweiten Ankerkammer (42) gezogen wird.
  4. Pumpen-Kraftstoffeinspritzventil-Einheit nach einem der Ansprüche 1 bis 3, worin mindestens eine der folgenden Anordnungen, nämlich der Steuerventilanordnung (36) und der Überströmventilanordnung (60), mit Hilfe eines elektromagnetischen Betätigungsorgans betätigt werden kann.
  5. Pumpen-Kraftstoffeinspritzventil-Einheit nach einem der Ansprüche 1 bis 4, weiterhin umfassend ein Kolbenelement (26), das innerhalb einer Kolbenbohrung (24) hin- und her bewegt werden kann, um Kraftstoff innerhalb der Pumpenkammer (20) mit Druck zu beaufschlagen, wobei der Rückführungskanal (52) so angeordnet ist, dass er mit einer dem Kolbenelement (26) zugeordneten Leckage-Sammelkammer (27) in Verbindung steht, in welcher sich aus der Pumpenkammer (20) austretender Kraftstoff sammelt, derart, dass ein Vakuum in der Leckage-Sammelkammer (27) gezogen wird.
  6. Pumpen-Kraftstoffeinspritzventil-Einheit nach Anspruch 5, worin die Leckage-Sammelkammer (27) durch eine Vertiefung oder eine Ausnehmung (27) gebildet wird, die auf der Außenfläche des Kolbenelements (26) vorhanden ist.
  7. Pumpen-Kraftstoffeinspritzventil-Einheit nach Anspruch 5, worin die Leckage-Sammelkammer (27) durch eine Vertiefung oder eine Ausnehmung (27) gebildet wird, die in der Kolbenbohrung (24) vorhanden ist.
  8. Pumpen Kraftstoffeinspritzventil Einheit nach einem der Ansprüche 1 bis 7, worin die Ventilnadel (14) an ein Kolbenelement (34) gekoppelt ist, wobei eine Außenfläche des Kolbenelements (34) dem Kraftstoffdruck innerhalb der Steuerkammer (32) ausgesetzt ist.
EP20020255320 2001-08-07 2002-07-30 Kraftstoffeinspritzventil Expired - Lifetime EP1283355B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0119218 2001-08-07
GB0119218A GB0119218D0 (en) 2001-08-07 2001-08-07 Fuel injector

Publications (2)

Publication Number Publication Date
EP1283355A1 EP1283355A1 (de) 2003-02-12
EP1283355B1 true EP1283355B1 (de) 2005-10-05

Family

ID=9919938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020255320 Expired - Lifetime EP1283355B1 (de) 2001-08-07 2002-07-30 Kraftstoffeinspritzventil

Country Status (3)

Country Link
EP (1) EP1283355B1 (de)
DE (1) DE60206453T2 (de)
GB (1) GB0119218D0 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3924127A1 (de) * 1989-07-20 1991-01-31 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
GB9622335D0 (en) 1996-10-26 1996-12-18 Lucas Ind Plc Injector arrangement
GB9625000D0 (en) * 1996-11-30 1997-01-15 Lucas Ind Plc Electromagnetic actuator
GB9811063D0 (en) * 1998-05-23 1998-07-22 Lucas Ind Plc Venturi pump
GB9820033D0 (en) * 1998-09-16 1998-11-04 Lucas Ind Plc Fuel injector
GB9915118D0 (en) * 1999-06-30 1999-09-01 Lucas Ind Plc Fuel injector

Also Published As

Publication number Publication date
DE60206453D1 (de) 2006-02-16
EP1283355A1 (de) 2003-02-12
GB0119218D0 (en) 2001-09-26
DE60206453T2 (de) 2006-07-20

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