EP1519032A1 - Injecteur de carburant - Google Patents

Injecteur de carburant Download PDF

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Publication number
EP1519032A1
EP1519032A1 EP04018073A EP04018073A EP1519032A1 EP 1519032 A1 EP1519032 A1 EP 1519032A1 EP 04018073 A EP04018073 A EP 04018073A EP 04018073 A EP04018073 A EP 04018073A EP 1519032 A1 EP1519032 A1 EP 1519032A1
Authority
EP
European Patent Office
Prior art keywords
nozzle needle
control chamber
nozzle
needle
control
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.)
Withdrawn
Application number
EP04018073A
Other languages
German (de)
English (en)
Inventor
Michael Kurz
Joachim Boltz
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 EP1519032A1 publication Critical patent/EP1519032A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F02M45/086—Having more than one injection-valve controlling discharge orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies

Definitions

  • the invention relates to an injection nozzle for an internal combustion engine with the Features of the preamble of claim 1.
  • Such an injection nozzle is known for example from DE 100 58 153 A1 and has a nozzle body, the at least one first injection hole and at least one having a second injection hole and a first nozzle needle and a second nozzle needle contains.
  • the first nozzle needle is designed as a hollow needle and the second nozzle needle arranged coaxially with the first nozzle needle in the first nozzle needle.
  • the first Nozzle needle may be the injection of fuel through the at least one first Spray hole to be controlled while the second nozzle needle to control the Injection of fuel through the at least one second injection hole is used.
  • the Nozzle body contains a first control chamber in which a first control surface is arranged is.
  • This first control surface is drive-coupled to the second nozzle needle and so on oriented that a prevailing in the first control chamber pressure on the first control surface Pressure forces generated, which initiate closing forces in the second nozzle needle.
  • This first control room communicates a control line, with which the pressure in the first Control room is controllable.
  • the injection nozzle of the nozzle body also contains a pressure chamber to a fuel supply line is connected. Owned in this pressure room the first nozzle needle at least one pressure stage, which in a pressurization of the Pressure chamber initiates opening forces in the first nozzle needle. If in the Fuel supply line a low pressure prevails, prevail at the first Nozzle needle Closing forces generated by a corresponding closing spring. To open the first nozzle needle is in the fuel supply line High pressure generated sufficient in the first nozzle needle on the pressure level generates large opening forces. The first nozzle needle is thus directly by the on her Pressure level applied pressure controlled so that the first nozzle needle is pressure controlled.
  • the second nozzle needle is equipped with a pressure level, but only at open first nozzle needle is subjected to the high pressure and in Opening direction of the second nozzle needle can generate effective forces. As long as im first control room a corresponding high pressure prevails, prevail in the second Nozzle needle the closing forces. If now with open first nozzle needle on the Control line the pressure in the first control room is lowered, predominate at the second nozzle needle the opening forces. The second nozzle needle is thus not directly controlled by the voltage applied to its pressure level, but indirectly via the Pressure in the first control room. Accordingly, the second nozzle needle is here servo-controlled.
  • the second nozzle needle can open quickly, the pressure falls in the first control chamber accordingly rapidly. As a result, the second nozzle needle receives a relatively high Lifting speed. At certain operating points of the internal combustion engine it is required, the injection already shortly after opening the second nozzle needle finish again. This can create constellations, in which the second Nozzle needle closes too early if, for example, due to their high Lifting speed of a the maximum opening stroke of the second nozzle needle rebounding limit stop. To achieve optimal emission and Power levels for the internal combustion engine, it is necessary, the opening and Closing times of the injector to specify as accurately as possible.
  • the injection nozzle according to the invention with the features of the independent claim has the advantage that when opening the second nozzle needle for this sets a smaller stroke speed, so that bouncing of the second nozzle needle not or only reduced occurs. As a result, the injection end for the Fuel injection through the at least one second injection hole or through all Spray holes are given with a higher accuracy.
  • a second control surface provided, which is formed on the first nozzle needle or drive-coupled with this is and arranged in the first control room and there with a closing direction of the first nozzle needle acting pressure can be acted upon.
  • the pressure in the first control room thus controls both the first nozzle needle and the second nozzle needle.
  • Special Meaning here comes to a second coupling path, which is also the first Control room communicates with the pressure source communicating and depending on the Hubs of the first nozzle needle is controlled.
  • the control of the second coupling path is designed so that the second coupling path, starting from the closed position of the first nozzle needle is open until a predetermined advance of the first nozzle needle and is blocked from a beyond the preliminary stroke stroke of the first nozzle needle.
  • These Pressure values can be interpreted in such a way that only the first one at the first pressure value Nozzle needle opens and at the second pressure value also the second nozzle needle opens.
  • the implementation effort for the servo control of both nozzle needles is characterized comparatively low.
  • FIG. 1 shows a greatly simplified longitudinal section through a Schematic representation of the injection nozzle according to the invention.
  • Nozzle tip 3 contains the nozzle body 2 at least a first injection hole 5 and at least one second injection hole 6.
  • first injection holes 5 provided, which are arranged in particular annular.
  • second spray holes 6, which also appropriate are arranged annularly.
  • a first nozzle needle 7 is mounted adjustable in stroke.
  • the nozzle body 2 includes a first needle guide 8, the first Guide cross-section 9 has.
  • the first nozzle needle 7 is seated in the one shown here Closed position in a first seat 10, which has a first seat cross-section 11.
  • the first nozzle needle 7 is equipped with at least one pressure stage 12, which the Spray holes 5, 6 faces. This pressure stage 12 is formed by that of first guide cross section 9 is larger than the first seat cross section 11th
  • the first nozzle needle 7 is at one Supported body 13, the here a disc-shaped or sleeve-shaped Has shape.
  • the transfer body 13 is at one of the nozzle needle. 7 side facing away in turn supported on a coupling sleeve 14.
  • the first Nozzle needle 7, the transfer body 13 and the coupling sleeve 14 form one here first needle assembly 15, which is mounted as a stroke-adjustable unit in the nozzle body 2.
  • the first nozzle needle 7 is associated with a return spring 16, via which the first Needle bandage 15 is supported on the nozzle body 2.
  • the return spring 16 can be a in the closing direction symbolized by an arrow 17 effective restoring force in introduce the first nozzle needle 7.
  • the opening direction is in a corresponding manner represented by an arrow 18.
  • the return spring 16 is supported on the Transfer body 13 from the restoring forces 13 thus on the first nozzle needle. 7 transfers.
  • the first nozzle needle 7 is formed as a hollow needle and serves in its interior to Storage of a second nozzle needle 19, which is arranged coaxially with the first nozzle needle 7 is.
  • the first nozzle needle 7 includes a second needle guide 20, the has a second guide section 21.
  • the second nozzle needle 19 sits at the here shown closed position in a second seat 22, between the at least one the first injection hole 5 and the at least one second injection hole 6 is arranged and has a second seat cross section 23.
  • the second nozzle needle 19 with to equip at least one pressure stage 24, which faces the spray holes 5, 6.
  • this pressure stage 24 is formed by the second Seat cross section 23 is smaller than the second guide cross section 21st
  • the second nozzle needle 19 at a transmission pin 25 is supported, which in turn on a coupling rod 26th is supported.
  • the second nozzle needle 19, the transmission pin 25 and the Coupling rod 26 again form a common hubver ause unit, so one second needle bandage 27. If in normal operation of the injector 1 within the second needle assembly 27 only pressure forces occur, can also here Members of the second needle assembly 27, so the second nozzle needle 19, the Transmission pin 25 and the coupling rod 26, loosely abut each other. there it may also be useful here, at least two of the components 19, 25, 26th to attach together or produce as a one-piece component.
  • the nozzle body 2 also includes a first control chamber 28 in which a first Control surface 29 and a second control surface 30 are arranged.
  • the first Control surface 29 is a part of the second needle assembly 27 and is here at the Coupling rod 26 is formed.
  • the first Control surface 29 may also be formed directly on the first nozzle needle 19.
  • the first Control surface 29 is remote from the spray holes 5, 6, so that a Pressurization of the first control surface 29 acting in the closing direction 17 Force on the second needle assembly 27 transmits and thus in the second nozzle needle 19th initiates.
  • the second control surface 30 on the first needle assembly 15 formed and also facing away from the spray holes 5, 6. Accordingly leads a pressurization of the second control surface 30 to initiate a in Closing direction 17 effective force in the first needle assembly 15 and thus in the first nozzle needle 7.
  • the first control chamber 28 communicates with a control line 31, with the help of the Pressure in the first control chamber 28 is controllable.
  • this control line 31 is designed as a drain line so that they are in Also referred to below as drain line 31.
  • the drain line 31 contains here a control valve 32 having two terminals and two switch positions and Accordingly, it can be designed in the manner of a 2/2-way valve.
  • the drain line 31 is locked (lock state).
  • the drain line 31 is connected to a return line 33, which leads to a no longer shown return 34, which is relatively depressurized and insofar as a pressure sink 34 forms (open state). For example, it is the Return or at the pressure sink 34 to a reservoir, in particular by one Fuel tank.
  • the nozzle body 2 includes a second control chamber 35, which via a Supply line 36 is connected to a pressure source 37.
  • a pressure source 37 it is, for example, a high-pressure fuel line
  • the supply the injection valve 1 is used with high-pressure fuel.
  • This common High-pressure fuel line 37 is then from a common, not shown High-pressure fuel pump fed.
  • Injector 1 is its own high-pressure fuel line 37 and / or its own Provide high-pressure fuel pump.
  • a third control surface 38 is arranged and in the second Control room 35 subjected to prevailing pressure.
  • the third control surface 38 is also away from the spray holes 5, 6 and formed on the first needle assembly 15. Of the pressure acting on the third control surface 38 thus initiates one in the closing direction 17 acting force in the first needle assembly 15 and thus in the first nozzle needle. 7 one.
  • a first coupling path 39 is now provided, which is the first Control chamber 28 directly or indirectly with the pressure source 37 (high-pressure fuel line) combines.
  • this includes the first Coupling path 39 at least one transverse bore 40, which has a cylindrical portion 41st of the first needle assembly 15, here the coupling sleeve 14, radially penetrates.
  • the Positioning of the transverse bore 40 is chosen so that it to the second Control room 35 is open.
  • an annular space 42 is formed, which is the first Control chamber 28 is open towards and in the transverse bore 40 opens.
  • the first coupling path 39 could also be formed by a line be the first control chamber 28 directly to the pressure source 37 or directly to the Supply line 36 and thus indirectly connected to the pressure source 37. This line could then, for example, open axially into the first control chamber 28.
  • a second coupling path 43 is provided, which is the first control room 28 also directly or indirectly with the pressure source 37 (high-pressure fuel line) combines.
  • the second comprises Coupling path 43 at least one longitudinal groove 44, the first control chamber 28 toward open is and projects into the second control chamber 35 when the first nozzle needle 7 is closed.
  • This longitudinal groove 44 is here in the cylindrical portion 41 of the coupling sleeve 14th educated.
  • the longitudinal groove 44 in a correspondingly shaped first Nozzle needle 7 may be formed directly on the first nozzle needle 7.
  • the longitudinal groove 44 not on the first needle assembly 15, but on the nozzle body.
  • the longitudinal groove 44 would then be axially open to the second control chamber 35 and the first Control chamber 28 towards radially open.
  • the longitudinal groove 44 has a first control chamber 28th remote end 46.
  • the nozzle body 2 has a wall portion 47, the second control chamber 35 axially limited. This wall portion 47 and the end 46th the longitudinal groove 44 form control edges, which are used to open and lock the second Coupling paths 43 interact with each other. In this way, a controller integrated for the second coupling path 43 in the injection nozzle 1, whose Functionality will be explained in more detail below. It is clear that preferably several Such longitudinal grooves 44 are provided, in particular circumferentially distributed on Axial section 41 are arranged.
  • the second coupling path 43 for example, by a Line formed directly to the pressure source 37 or directly to the supply line 36 and thus indirectly connected to the pressure source 37. This line could then open radially into the first control chamber 28 and could in dependence of Strokes of the first valve assembly 15 from the outer shell of the axial section 41 controlled become.
  • the first coupling path 39 is arranged or formed such that it is in all strokes of the nozzle needles 7, 19 is always open. This can be done at closed control valve 32 in any relative position between the Nozzle needles 7, 19 with each other and relative to the nozzle body 2, a filling of the first control chamber 28 and thus a pressure build-up in the first control chamber 28 ensured become.
  • first coupling path 39 is suitably more throttled than the Inlet line 36 so that via the first coupling path 39 allows a pressure drop becomes.
  • the coupling paths 39 and 43 are coordinated so that the first coupling path 39 is throttled more than the second coupling path 43.
  • the second coupling path 43 is dependent on the stroke of the first nozzle needle 7 controllable.
  • An axial distance between the end 46 of the longitudinal groove 44 and the Wall section 47 defines a preliminary stroke 48, in which the second coupling path 43 is switched to open and close.
  • the supply line 36 is suitably arranged so that they occur at all Lifting positions of the nozzle needles 7, 19 is always open and the second control chamber 35th can dine.
  • This driver assembly 49 is so designed that the first needle assembly 15 when closing the second needle assembly 27th or at least the second nozzle needle 19 in the closing direction 17 entrains.
  • the injection holes 5, 6 are open with nozzle needles 7, 19 via a Fuel supply line 50 supplied with high-pressure fuel.
  • This fuel supply line 50 is for this purpose to the pressure source or the High-pressure fuel line 37 connected.
  • the fuel supply line 50 opens into a nozzle chamber 51, from which an annular space 52 to the spray holes 5, 6th leads.
  • the first sealing seat 10 is between the at least one first injection hole 5 and the annular space 52, so that the first nozzle needle 7, the fuel supply to the at least one first injection hole 5 controls.
  • the second sealing seat 22 is between the at least one second injection hole 6 and the annular space 52 are arranged, so that the second nozzle needle 19 with open first nozzle needle 7, the fuel injection controlled by the at least one second injection hole 6.
  • the injection nozzle 1 operates as follows:
  • the control valve 32 In the starting position shown in Fig. 1, the control valve 32 is located in the shown blocking position, so that the drain line 31 is not connected to the pressure sink 34th connected is. Since the first control chamber 28 at least over the first coupling path 39th and at small strokes of the first valve assembly 15 also via the second Coupling path 43 communicates indirectly with the pressure source 37 may be in the first Control chamber 28 to build up the high pressure fuel. Accordingly, the first Control surface 29 introduce a relatively large closing force in the second needle assembly 27.
  • the second control surface 30 directs a relatively large closing force in the first needle bandage 15 a.
  • the second control room 35 also prevails High fuel pressure, so that over the third control surface 38 is a relatively large Closing force in the first needle assembly 14 can be initiated.
  • Restoring force of the return spring 16 While the pressure forces on the second Control surface 30 and the third control surface 38 and the restoring forces of the Restoring spring 16 act in the closing direction 17, the high fuel pressure generated at the Pressure stage 12 of the first nozzle needle 7 acting in the opening direction 18 force.
  • the control valve 32 To open the first nozzle needle 7, the control valve 32 is in the open position adjusted, whereby the drain line 31 is opened and thus with the pressure sink 34th connected is. Accordingly, it comes in the first control room 28 to a Pressure drop. By this pressure drop can be in the first control chamber 28, a first Form pressure value. Since the drain line 31 has a throttle effect and da over the coupling paths 39, 43 hydraulic means permanently in the first control chamber 28th flows after, the first pressure value is indeed smaller than the fuel high pressure, at least but greater than the pressure of the pressure sink 34. At the same time falls in the second Control room 35, the pressure off. The decrease in pressure on the second control surface 30 and on the third control surface 38 leads to reduced closing forces in the first needle assembly 15. The involved components of the injection nozzle 1 are so one on another matched that now in the first nozzle needle 7 in the opening direction 18th sets effective resultant force. Accordingly, the first nozzle needle 7 lifts from the first seat 10.
  • the High fuel pressure also at the pressure stage 24 of the second nozzle needle 19 at.
  • the Components of the injection nozzle 1 are here matched to one another that in second needle assembly 27 still acting in the closing direction 17 resulting Force results, although the pressure in the first control chamber 28 to the first pressure value is reduced and the pressure stage 24 of the second nozzle needle 19 with the High fuel pressure is applied.
  • this is the pressure level 24 of second nozzle needle 19 relatively small dimensions.
  • return spring located on the second needle assembly 27, for example, on the first control surface 29 is supported and a corresponding closing force in the second needle assembly 27 initiates. Accordingly, the second remains Nozzle needle 19 even when opening the first nozzle needle 7 in the second seat 22nd
  • the first needle assembly 15 When the control valve 32 is open for a sufficient length of time, the first needle assembly 15 will result starting from the starting position, in which the first nozzle needle 7 in the first seat 10th sits, the predetermined forward stroke 48 through. As soon as this forward stroke 48 is present, lie the Control edges, ie the axial end 46 of the longitudinal groove 44 and the wall portion 47 radially in alignment with each other, whereby the second coupling path 43 is locked. By the Locking or closing the second coupling path 43 no longer flows as much Hydraulic agent in the first control chamber 28 after, so that the pressure continues to drop, to a second pressure value. In any case, this second pressure value is smaller than that at open second coupling path 43 prevailing first pressure value.
  • the second pressure value is also greater than the pressure of Pressure sink 34.
  • the vote of the components of the injection nozzle 1 is for this Condition selected so that the second pressure value at the first control surface 29 only so small pressure forces can initiate that at the second needle assembly 27 and at the second nozzle needle 19 an effective in the opening direction 18 resulting force established. Consequently, the second nozzle needle 19 lifts off from the second seat 22. Accordingly, fuel injection by the at least one second injection hole 6.
  • the first coupling path 39, the pressure drop in the first Control chamber 28 limited to the said second pressure value, so that for the Opening stroke of the second nozzle needle 19 and the second needle assembly 27 only one comparatively small opening speed results.
  • a hard can Impact and thus bouncing of the second needle assembly 27 on a stop surface, z. B. on an axial wall 53 of the first control chamber 28 can be avoided.
  • the second needle assembly 27 so to design that he steamed against the stop (wall 53) drives what For example, by a suitable contouring of the first control surface 28 can be realized is.
  • the reduced pressure force has an effect on the second control surface 30 on the balance of forces on the first needle assembly 15 from.
  • the via the supply line 36 in the second control chamber 35 nachströmende medium only over the first Discharge coupling path 39 from the second control chamber 35 so that it in the second Control chamber 35 comes to a pressure increase.
  • This pressure increase increases the Closing force of the third control surface 38, which also in the balance of the first Needle Association receives 15 attacking forces.
  • an attenuation or deceleration of the first nozzle needle 7 and the first Needle Association 15 can be achieved.
  • the control valve 32 must be timely returned to the locked position shown be before the first nozzle needle 7 reaches the predetermined pre-stroke 48.
  • the axial Length of the Vorhubs 48 can thus in dependence of the opening times for the first Nozzle needle 7 can be selected.
  • the control valve 32 is shown in the Closed position transferred.
  • the driver assembly 49 ensures that the first needle assembly 15 the second needle assembly 27 or at least the second nozzle needle 19 entrains. As soon as the first nozzle needle 7 arrives in the first seat 10, falls downstream of the first seat 10 of the Pressure abruptly, so then the second needle assembly 27 and the second Nozzle needle 19 enters the second seat 22.

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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)
EP04018073A 2003-09-23 2004-07-30 Injecteur de carburant Withdrawn EP1519032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10343998A DE10343998A1 (de) 2003-09-23 2003-09-23 Einspritzdüse
DE10343998 2003-09-23

Publications (1)

Publication Number Publication Date
EP1519032A1 true EP1519032A1 (fr) 2005-03-30

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ID=34177903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018073A Withdrawn EP1519032A1 (fr) 2003-09-23 2004-07-30 Injecteur de carburant

Country Status (3)

Country Link
US (1) US20050089426A1 (fr)
EP (1) EP1519032A1 (fr)
DE (1) DE10343998A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009038155A1 (fr) 2007-09-20 2009-03-26 Toyota Jidosha Kabushiki Kaisha Contrôleur d'injection de carburant pour moteur à combustion interne
US8347851B2 (en) 2007-09-07 2013-01-08 Toyota Jidosha Kabushiki Kaisha Fuel injection control device for internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015223043A1 (de) * 2015-11-23 2017-05-24 Robert Bosch Gmbh Kraftstoff-Injektor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123721C1 (en) * 1991-07-17 1992-06-17 Steyr-Daimler-Puch Ag, Wien, At Fuel injection system with pump and nozzle units - has laterally coupled pump duct to chamber in piston bush
EP0967383A2 (fr) * 1998-06-24 1999-12-29 LUCAS INDUSTRIES public limited company Injecteur de combustible
US20030010845A1 (en) * 2001-07-13 2003-01-16 Carroll John T. Rate shaping fuel injector with limited throttling
WO2003069151A1 (fr) * 2002-02-14 2003-08-21 Robert Bosch Gmbh Soupape d'injection de carburant pour moteurs a combustion interne
WO2004033890A1 (fr) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Dispositif d'injection de carburant destine a un moteur a combustion interne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187567A (ja) * 1985-02-15 1986-08-21 Kawasaki Heavy Ind Ltd ガス噴射弁
EP0967382B1 (fr) * 1998-06-24 2004-11-24 Delphi Technologies, Inc. Injecteur de carburant
ATE472677T1 (de) * 1999-10-06 2010-07-15 Delphi Tech Holding Sarl Kraftstoffeinspritzventil
US6557776B2 (en) * 2001-07-19 2003-05-06 Cummins Inc. Fuel injector with injection rate control
JP3882680B2 (ja) * 2001-11-16 2007-02-21 株式会社デンソー 燃料噴射ノズル

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123721C1 (en) * 1991-07-17 1992-06-17 Steyr-Daimler-Puch Ag, Wien, At Fuel injection system with pump and nozzle units - has laterally coupled pump duct to chamber in piston bush
EP0967383A2 (fr) * 1998-06-24 1999-12-29 LUCAS INDUSTRIES public limited company Injecteur de combustible
US20030010845A1 (en) * 2001-07-13 2003-01-16 Carroll John T. Rate shaping fuel injector with limited throttling
WO2003069151A1 (fr) * 2002-02-14 2003-08-21 Robert Bosch Gmbh Soupape d'injection de carburant pour moteurs a combustion interne
WO2004033890A1 (fr) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Dispositif d'injection de carburant destine a un moteur a combustion interne

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8347851B2 (en) 2007-09-07 2013-01-08 Toyota Jidosha Kabushiki Kaisha Fuel injection control device for internal combustion engine
WO2009038155A1 (fr) 2007-09-20 2009-03-26 Toyota Jidosha Kabushiki Kaisha Contrôleur d'injection de carburant pour moteur à combustion interne
EP2189649A1 (fr) * 2007-09-20 2010-05-26 Toyota Jidosha Kabusiki Kaisha Contrôleur d'injection de carburant pour moteur à combustion interne
EP2189649A4 (fr) * 2007-09-20 2011-04-06 Toyota Motor Co Ltd Contrôleur d'injection de carburant pour moteur à combustion interne
US8752774B2 (en) 2007-09-20 2014-06-17 Toyota Jidosha Kabushiki Kaisha Fuel injection control device of engine

Also Published As

Publication number Publication date
US20050089426A1 (en) 2005-04-28
DE10343998A1 (de) 2005-04-14

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