EP1184563B1 - Injecteur de carburant - Google Patents

Injecteur de carburant Download PDF

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Publication number
EP1184563B1
EP1184563B1 EP20010119222 EP01119222A EP1184563B1 EP 1184563 B1 EP1184563 B1 EP 1184563B1 EP 20010119222 EP20010119222 EP 20010119222 EP 01119222 A EP01119222 A EP 01119222A EP 1184563 B1 EP1184563 B1 EP 1184563B1
Authority
EP
European Patent Office
Prior art keywords
pressure control
chamber
fuel
conduit
needle
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
EP20010119222
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German (de)
English (en)
Other versions
EP1184563A3 (fr
EP1184563A2 (fr
Inventor
Kazuhiro c/o Toyota Jidosha K.K. Omae
Yoshimasa c/o Toyota Jidosha K.K. Watanabe
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP1184563A2 publication Critical patent/EP1184563A2/fr
Publication of EP1184563A3 publication Critical patent/EP1184563A3/fr
Application granted granted Critical
Publication of EP1184563B1 publication Critical patent/EP1184563B1/fr
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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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

Definitions

  • the present invention relates to a fuel injector.
  • PCT patent publication No. WO97/48900 discloses a fuel injector having a housing with a nozzle, a needle movably accommodated in a needle accommodating chamber formed in the housing, a fuel supply conduit extending in the housing to the nozzle, a pressure control chamber defined between the needle and an inner wall of the needle accommodating chamber, a valve chamber formed in the housing and connected to the pressure control chamber via a communicating conduit, the pressure control chamber and the valve chamber being filled with fuel, and a pressure control valve accommodated in the valve chamber for controlling a communication between the valve chamber and a relief conduit.
  • the pressure control chamber is connected to the fuel supply conduit.
  • fuel at high pressure is always fed to the pressure control chamber via the inflowing conduit. This may prevent a rapid pressure drop in the pressure control chamber and, thus, may prevent a rapid displacement of the needle to open the nozzle and to conduct fuel injection.
  • a fuel injector comprising the features summarized in the pre-characterizing portion of claim 1 is known from each of documents WO-A-9961779, DE-A-198 23 937 and WO-A-9902849.
  • the valve chamber is connected to the fuel supply conduit via the inflowing conduit, so that fuel flows into the pressure control chamber from the fuel supply conduit through the valve chamber when the pressure control valve prevents communication between the valve chamber and the relief conduit. This results in a rapid pressure drop in the pressure control chamber when the pressure control valve communicates the valve chamber and the relief conduit so that the needle can be rapidly displaced in the direction in which the needle opens the nozzle.
  • a fuel injector 1 comprises a housing 2 and a needle 3.
  • the housing 2 includes a nozzle holder 2a with a pair of nozzles 4, a casing body 2b, a actuator casing 2c, and chamber defining members 2d, 2e, and 2f.
  • the needle 3 includes a needle body 3a and a plurality of piston members 3b, and is accommodated in a needle accommodating chamber 5 formed in the housing 2, movably along its longitudinal axis. The needle 3 is displaced to open or close the nozzles 4.
  • a fuel supply conduit 6 is formed in the housing 2 from a fuel inlet 7 formed in the housing 2 to the nozzles 4.
  • the fuel inlet 7 is connected to a fuel source such as a common rail (not shown).
  • a pressure control chamber 8 is defined between the top end of the needle 3 and an inner wall of the needle accommodating chamber 5, in which a displacement control piston 9 is axially movably accommodated to divide the pressure control chamber 8 into first and second pressure control chambers 8a and 8b.
  • the first pressure control chamber 8a is defined between the bottom end of the displacement control piston 9 and the top end of the needle 3
  • the second pressure control chamber 8b is defined between the top end of the displacement control piston 9 and the inner wall of the needle accommodating chamber 5.
  • the displacement control piston 9 includes an annular shoulder 9a, which limits a downward displacement of the piston 9 together with an annular shoulder 5a formed in the needle accommodating chamber 5. Note that an upward displacement of the piston 9 is limited by contact between the top end of the piston 9 and the top end wall of the needle accommodating chamber 5.
  • the displacement control piston 9 also includes, in its bottom surface, a central depression 9b and grooves 9c extending in a radial direction, which prevent the needle 3 from adhering to the piston 9.
  • valve chamber 10 is also formed in the housing 2, which is connected to the pressure control chamber 8 via a communicating conduit. Specifically, the valve chamber 10 is connected to the first pressure control chamber 8a via a first communicating conduit 11a, and is connected to the second pressure control chamber 8b via a second communicating conduit 11b.
  • the pressure control chambers 8a and 8b and the valve chamber 14 are filled with fuel.
  • the fuel outlet 13 may be connected to a fuel tank (not shown).
  • a pressure control valve 14 is movably accommodated in the valve chamber 10 along its longitudinal axis.
  • the pressure control valve 14 includes a ball-shaped member 14a and a rod-shaped member 14b, integral with each other.
  • the pressure control valve 14 is driven by an actuator 15 of a piezo-electronic type, accommodated in the housing 2.
  • the actuator 15 controls an axial displacement of the pressure control valve 14 though a control of a fuel pressure in a fuel-filled chamber 16 between the actuator 15 and the pressure control valve 14.
  • a fuel pressure in the chamber 16 increases, and thus the pressure control valve 14 displaces downwardly.
  • the actuator shrinks along its longitudinal axis a fuel pressure in the chamber 16 drops, and thus the pressure control valve 14 displaces upwardly.
  • the fuel supply conduit 6 includes a fuel collecting chamber 17, formed therein, in which a pressure receiving surface 3c formed on the needle is arranged. Accordingly, the needle 3 is urged by the fuel pressure, in the fuel collecting chamber 17, in a direction in which the needle 3 opens the nozzles 4. The needle 3 is also urged by a compressed spring 18, arranged between the needle 3 and the inner wall of the needle accommodating chamber 5, in a direction in which the needle 3 closes the nozzles 4.
  • An inflowing conduit 19 branches off from the fuel supply conduit 6, and extends to the valve chamber 10. In this way, the valve chamber 10 communicates with the fuel supply conduit 6.
  • first and second communicating conduits 11a and 11b, and the inflowing conduit 19 include chokes, formed therein, respectively.
  • Fig. 4 shows a time chart of an axial displacement ND of the needle 3, according to the present embodiment.
  • the needle 3 is displaced or lifted upwardly by a displacement D1. Then, the needle 3 is further displaced upwardly by a displacement D2. After that, the needle 3 is displaced downwardly by a displacement (D1 + D2), in order to stop the fuel injection.
  • the needle 3 is first displaced from a zero-displaced position in which the nozzles 4 are closed, to an intermediate position which is between the zero-displaced position and a fully-displaced position. After that, the needle 3 is further displaced upwardly to the fully-displaced position, and then is returned to the zero-displaced position.
  • the pressure control valve 14 is moved to a position where it prevents communication between the valve chamber 10 and the relief conduit 12, and connects the valve chamber 14 with the second pressure control chamber 8b, as shown in Fig. 2.
  • fuel supplied to the valve chamber 10 via the inflowing conduit 19 flows into the first and second pressure control chambers 8a and 8b via the respective communicating conduits 11a and 11b.
  • This increases the fuel pressure in the second pressure control chamber 8b, and keeps the displacement control piston 9 in a lowermost position where its shoulder 9a contacts with the shoulder 5a of the needle accommodating chamber 5.
  • this increases the fuel pressure in the first pressure control chamber 8a, and keeps the needle 3 in the zero-displaced position.
  • the top of the needle 3 and the bottom of the displacement control piston 9 are spaced apart from each other by a distance D1
  • the top of the piston 9 and the top of the inner wall of the needle accommodating chamber 5 are spaced apart from each other by a distance D2.
  • the pressure control valve 14 When the fuel injection is to be started, the pressure control valve 14 is displaced downwardly to a position in which it communicates the valve chamber 10 with the relief conduit 12 and avoids a communication between the valve chamber 10 and the second pressure control chamber 8b, as shown in Fig. 5. In this condition, the fuel pressure in the second pressure control chamber 8b is kept high, and thus the displacement control piston 9 is kept at the lowermost position. Contrarily, fuel in the first pressure control chamber 8a flows out through the valve chamber 10 to the relief conduit 12, and thus the fuel pressure in the first pressure control chamber 8a drops.
  • the upward displacement of the needle 3 is limited by an abutment of the needle 3 with the displacement control piston 9, as shown in Fig. 5. In this way, the needle 3 is first displaced by the displacement D1.
  • the pressure control valve 14 is displaced upwardly to a position in which it connects the valve chamber 10 with the relief conduit 12 and the second pressure control chamber 8b, respectively, as shown in Fig. 6.
  • fuel in the second pressure control chamber 8b flows out through the valve chamber 10 to the relief conduit 12, and thus the fuel pressure in the second pressure control chamber 8b also drops.
  • the upward displacement of the needle 3 and the displacement control piston 9 is limited by an abutment of the piston 9 with the inner wall of the needle accommodating chamber 5, as shown in Fig. 6. In this way, the needle 3 is further displaced by the displacement D2, or is fully displaced.
  • the pressure control valve 14 When the fuel injection is to be stopped, the pressure control valve 14 is turned back to the position shown in Fig. 2. This increases the fuel pressures in the first and second pressure control chambers 8a and 8b. As a result, the downward force acting on the needle 3 exceeds the upward force acting on the needle 3, and thus the needle 3 and the displacement control piston 9 are displaced downwardly, until the needle 3 closes the nozzles 4 and the shoulder 9a of the piston 9 abuts with the shoulder 5a of the needle accommodating chamber 5.
  • the inflowing conduit 19 opens not to the first and second pressure control chambers 8a and 8b, but to the valve chamber 10. This promotes the pressure drop in the first and second pressure control chambers 8a and 8b, which promotes the rapid upward displacement of the needle 3.
  • an upward displacement rate of the needle 3 depends on a flow rate of fuel through the first communicating conduit 11a, rather than that through the annular conduit.
  • the flow resistance of the first communicating conduit 11a is set higher than that of the annular conduit.
  • the fuel flow rate through the annular conduit depends on a magnitude of a clearance formed between the pressure control valve 14 and the valve chamber 10, which depends, in turn, on the axial displacement of the valve 14. Therefore, if the upward displacement rate of the needle 3 depends on a fuel flow rate through the annular conduit, a critical control of the axial displacement of the valve 14 is required for maintaining the displacement rate of the needle 3 constant.
  • the present embodiment avoids such a critical control.
  • the flow resistance of the second communicating conduit 11b is set higher than that of the annular conduit.
  • the flow resistance of the inflowing conduit 19 is set relatively low. This quickly increases the fuel pressure in the valve chamber 10, and thus the pressures in the first and second pressure control chambers 8a and 8b, when the pressure control valve 14 prevents communication between the valve chamber 10 and the relief conduit 12. This ensures a quick downward displacement of the needle 3.
  • the displacement of the needle 3 is controlled through control of the displacement control piston 9, which is obtained through control of the fuel pressure in the first and second pressure control chambers 8a and 8b. This avoids a control of a fuel pressure in the fuel supply conduit 6 for a control of a displacement of the needle 3.
  • the pressure control valve 14 is connected to the actuator 15 of a piezo-electric type, indirectly, i.e., via the fuel-filled chamber 16 (see Fig. 1).
  • an axial length of a piezo-electric element may vary with its temperature change, and thus a direct connection of the valve 14 to the actuator 15 may deteriorate control of the axial displacement of the valve 14.
  • the present embodiment avoids such a problem.
  • Fig. 7 shows another embodiment of the present embodiment.
  • the same reference numerals are used for the same or similar constituents as in Fig. 1.
  • An additional inflowing conduit 20b connecting the second pressure control chamber 8b to the inflowing conduit 19 or the fuel supply conduit 6 is added to the embodiment shown in Fig. 1. Specifically, the chamber defining member 2e shown in Fig. 1 is replaced by two chamber defining members 2e' and 2e", in which the additional inflowing conduit 20b having a choke is formed.
  • Fuel in the fuel supply conduit 6 flows into the second pressure control chamber 8b via the additional inflowing conduit 20b. This promotes a quick downward displacement of the needle 3.
  • fuel flows both from the valve chamber 10 and the fuel supply conduit 6.
  • Flow resistance of the additional inflowing conduit 20b is set higher than that of the second communicating conduit 11b. This promotes a quick pressure drop in the second pressure control chamber 8b when the pressure control valve 14 connects the second chamber 8b with the relief conduit 12 (see Fig. 6), which thus promotes a quick upward displacement of the needle 3.
  • Fig. 8 shows another embodiment of the present embodiment.
  • the same reference numerals are used for the same or similar constituents as in Figs. 1 and 7.
  • a further additional inflowing conduit 20a connecting the first pressure control chamber 8a to the inflowing conduit 19 or the fuel supply conduit 6 is added to the embodiment shown in Fig. 7.
  • the conduit 20a having a choke is formed in the piston members 3b of the needle 3 and the casing body 2b of the housing 2.
  • the conduit 20a is referred to a first additional inflowing conduit
  • the conduit 20b is referred to a second additional inflowing conduit, hereinafter.
  • Fuel in the fuel supply conduit 6 also flows into the first pressure control chamber 8a via the first additional inflowing conduit 20a. This also promotes a quick downward displacement of the needle 3.
  • fuel flows from both the valve chamber 10 and the fuel supply conduit 6.
  • Flow resistance of the first additional inflowing conduit 20a is set higher than that of the first communicating conduit 11a. This promotes a quick pressure drop in the first pressure control chamber 8a when the pressure control valve 14 communicates the first chamber 8a with the relief conduit 12 (see Figs. 5 and 6), which thus promotes a quick upward displacement of the needle 3.
  • a fuel injection pressure and, thus, a fuel pressure in the fuel supply conduit 6 are set relatively low, in order to suppress a combustion noise generated during an idling engine operation. This, however, reduces the downward force acting on the needle 3 by the fuel pressure in the first pressure control chamber 8a when the nozzles 4 are to be closed, which increases a ratio of the downward force by the spring 18 (see Fig. 1) to a total downward force. In this situation, a rapid pressure drop in the first pressure control chamber 8a is required for a quick upward displacement of the needle 3.
  • relatively high flow resistance of the first additional inflowing conduit 20a is preferable when the fuel injection pressure is relatively low.
  • An omission of the first additional inflowing conduit 20a, as in the embodiments shown in Fig. 1 and 7 is more preferable in this regard.
  • a fuel injector which is capable of rapidly displacing the needle in a direction in which the needle opens the nozzle.

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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 (7)

  1. Injecteur de carburant (1), comprenant un boítier (2) équipé d'une buse (4), une aiguille (3) logée de façon amovible dans une chambre à aiguille (5) ménagée dans le boítier (2), un conduit d'alimentation en carburant (6) se prolongeant dans le boítier (2) jusqu'à la buse (4), une chambre de régulation de pression (8) définie entre l'aiguille (3) et une paroi intérieure de la chambre à aiguille (5), un compartiment des soupapes (10) ménagé dans le boítier (2) et relié à la chambre de régulation de pression (8) via un conduit de communication (110, 116), la chambre de régulation de pression (8) et le compartiment des soupapes (10) étant remplis de carburant, et une soupape de régulation de pression (14) ménagée dans le compartiment des soupapes (10) afin de contrôler une communication entre le compartiment des soupapes et un conduit de surpression (12),
       dans lequel le compartiment des soupapes (10) est relié au conduit d'alimentation en carburant (6) via un conduit de flux entrant (19), de telle façon que le carburant afflue dans la chambre de régulation de pression (8) depuis le conduit d'alimentation en carburant (6) en passant par le compartiment des soupapes (10) lorsque la soupape de régulation de pression (14) empêche la communication entre le compartiment des soupapes (10) et le conduit de surpression (12), et
       dans lequel, lorsque la soupape de régulation de pression (14) empêche une communication entre le compartiment des soupapes (10) et le conduit de surpression (12), une pression de carburant dans la chambre de régulation de pression (8) augmente et l'aiguille (3) est déplacée dans une première direction dans laquelle un volume de la chambre de régulation de pression (8) est augmenté et, quand la soupape de régulation de pression (14) relie le compartiment des soupapes (10) et le conduit de surpression (12), une pression du carburant dans la chambre de régulation de pression (8) chute et l'aiguille (3) est déplacée dans une deuxième direction dans laquelle un volume de la chambre de régulation de pression (8) est réduit,
       caractérisé en ce qu'un piston de commande de déplacement (9) est placé de façon amovible dans la chambre de régulation de pression (8) afin de contrôler un déplacement de l'aiguille (3), le piston de commande de déplacement (9) divisant la chambre de régulation de pression (8) en une première et une deuxième chambres de régulation de pression (8a, 8b), la première chambre de régulation de pression (8a) étant définie entre le piston de commande de déplacement (9) et l'aiguille (3), et la deuxième chambre de régulation de pression (8b) étant définie entre le piston de commande de déplacement (9) et la paroi intérieure de la chambre à aiguille (5), et en ce que le conduit de communication se décompose en un premier et un deuxième conduits de communication (11a, 11b), le premier conduit de communication (11a) se prolongeant entre la première chambre de régulation de pression (8a) et le compartiment des soupapes (10), et le deuxième conduit de communication (11b) se prolongeant entre la deuxième chambre de régulation de pression (8b) et le compartiment des soupapes (10).
  2. Injecteur de carburant selon la revendication 1, caractérisé en ce que le carburant afflue dans les première et deuxième chambres de régulation de pression (8a, 8b) seulement depuis le compartiment des soupapes (10) via les premier et deuxième conduits de communication respectifs (11a, 11b).
  3. Injecteur de carburant selon la revendication 1, caractérisé en ce que la première chambre de régulation de pression (8a) est reliée au conduit d'alimentation en carburant (6) via un premier conduit additionnel (20a), de telle façon que le carburant afflue dans la première chambre de régulation de pression (8a) depuis le compartiment des soupapes (10) via le premier conduit de communication (11a) et depuis le conduit d'alimentation en carburant (6) via le premier conduit additionnel (20a).
  4. Injecteur de carburant selon la revendication 1 ou 3, caractérisé en ce que la deuxième chambre de régulation de pression (8b) est reliée au conduit d'alimentation en carburant (6) via un deuxième conduit additionnel (20b), de telle façon que le carburant afflue dans la deuxième chambre de régulation de pression (8b) depuis le compartiment des soupapes (10) via le deuxième conduit de communication (11b) et depuis le conduit d'alimentation en carburant (6) via le deuxième conduit additionnel (20b).
  5. Injecteur de carburant selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la soupape de régulation de pression (14) régule également la communication entre le compartiment des soupapes (10) et la deuxième chambre de régulation de pression (8b), dans lequel, lorsque la soupape de régulation de pression (14) empêche la communication entre le compartiment des soupapes (10) et le conduit de surpression (12) et relie le compartiment des soupapes (10) et la deuxième chambre de régulation de pression (8b), les pressions de carburant dans les première et deuxième chambres de régulation de pression (8a, 8b) augmentent et l'aiguille (3) ainsi que le piston de commande de déplacement (9) se déplacent dans la première direction, quand la soupape de régulation de pression (14) fait communiquer le compartiment des soupapes (10) et le conduit de surpression (12) et empêche la communication entre le compartiment des soupapes (10) et la deuxième chambre de régulation de pression (8b), une pression de carburant dans la première chambre de régulation de pression (8a) chute et l'aiguille (3) est déplacée par un premier déplacement (01) dans la deuxième direction pendant que le piston de commande de déplacement (9) maintient sa position, et, lorsque la soupape de régulation de pression (14) relie le compartiment des soupapes (10) et le conduit de surpression (12) et relie le compartiment des soupapes (10) et la deuxième chambre de régulation de pression (8b), les pressions de carburant dans les première et deuxième chambres de régulation de pression (8a, 8b) chutent et l'aiguille (3) ainsi que le piston de commande de déplacement (9) sont déplacés par un deuxième déplacement (02) dans la deuxième direction, le deuxième déplacement (02) étant supérieur au premier déplacement (01).
  6. Injecteur de carburant selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'une chambre de collecte de carburant (17) est ménagée dans le conduit d'alimentation en carburant (6), et en ce qu'une surface de réception de pression (3c) ménagée sur l'aiguille (3) est installée dans la chambre de collecte de carburant (17) pour pousser l'aiguille (3) dans la deuxième direction.
  7. Injecteur de carburant selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'aiguille (3) est déplacée dans la première direction lorsque l'injection de carburant doit être arrêtée, et est déplacée dans la deuxième direction lorsque l'injection de carburant doit être lancée.
EP20010119222 2000-08-30 2001-08-09 Injecteur de carburant Expired - Lifetime EP1184563B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000260779 2000-08-30
JP2000260779A JP3829604B2 (ja) 2000-08-30 2000-08-30 燃料噴射装置

Publications (3)

Publication Number Publication Date
EP1184563A2 EP1184563A2 (fr) 2002-03-06
EP1184563A3 EP1184563A3 (fr) 2003-11-19
EP1184563B1 true EP1184563B1 (fr) 2004-11-24

Family

ID=18748736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010119222 Expired - Lifetime EP1184563B1 (fr) 2000-08-30 2001-08-09 Injecteur de carburant

Country Status (3)

Country Link
EP (1) EP1184563B1 (fr)
JP (1) JP3829604B2 (fr)
DE (1) DE60107332T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014201061A1 (de) 2014-01-22 2015-07-23 Robert Bosch Gmbh Ventil zum Zumessen von Fluid

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254300A1 (de) * 2002-11-21 2004-06-03 Robert Bosch Gmbh Kraftstoffeinspritzventil einer Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10326260A1 (de) * 2003-06-11 2005-01-05 Robert Bosch Gmbh Kraftstoffeinspritzventil und Verfahren zu dessen Steuerung
AT501668B1 (de) * 2004-08-24 2007-03-15 Bosch Gmbh Robert Steuerventil für eine einspritzdüse
DE102005004405A1 (de) * 2005-01-31 2006-08-03 Siemens Ag Düsenbaugruppe und Einspritzventil
DE102005027853A1 (de) * 2005-06-16 2006-12-21 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624001A1 (de) 1996-06-15 1997-12-18 Bosch Gmbh Robert Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen
DE19729844A1 (de) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Kraftstoffeinspritzvorrichtung
GB2336627A (en) * 1998-04-24 1999-10-27 Lucas Ind Plc Fuel injector with biassing spring in blind bore in valve needle
JP2002516952A (ja) * 1998-05-28 2002-06-11 シーメンス アクチエンゲゼルシヤフト 内燃機関に用いられる燃料噴射弁
DE19823937B4 (de) * 1998-05-28 2004-12-23 Siemens Ag Servoventil für Kraftstoffeinspritzventil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014201061A1 (de) 2014-01-22 2015-07-23 Robert Bosch Gmbh Ventil zum Zumessen von Fluid

Also Published As

Publication number Publication date
EP1184563A3 (fr) 2003-11-19
DE60107332D1 (de) 2004-12-30
JP2002070684A (ja) 2002-03-08
JP3829604B2 (ja) 2006-10-04
DE60107332T2 (de) 2005-12-08
EP1184563A2 (fr) 2002-03-06

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