EP1584814A1 - Servoventilangesteuerter Kraftstoffinjektor - Google Patents
Servoventilangesteuerter Kraftstoffinjektor Download PDFInfo
- Publication number
- EP1584814A1 EP1584814A1 EP05100659A EP05100659A EP1584814A1 EP 1584814 A1 EP1584814 A1 EP 1584814A1 EP 05100659 A EP05100659 A EP 05100659A EP 05100659 A EP05100659 A EP 05100659A EP 1584814 A1 EP1584814 A1 EP 1584814A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- control
- valve
- chamber
- piston
- 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
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
- 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
- F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
-
- 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
- F02M47/025—Hydraulically 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
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/006—Springs assisting hydraulic closing force
-
- 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
-
- 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
- F02M63/0028—Valves characterised by the valve actuating means hydraulic
- F02M63/0029—Valves characterised by the valve actuating means hydraulic using a pilot valve controlling a hydraulic chamber
-
- 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
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
Definitions
- the invention relates to a fuel injector for an internal combustion engine according to the Preamble of claim 1.
- A1 is a fuel injector for internal combustion engines with a Pressure booster for pressure boosting and with a servo valve for pressure-controlled control of the fuel injector known.
- the servo valve which as 3/2-control valve is constructed by a designed as a solenoid valve switching valve controlled, whereby the pressure control of the fuel injector is realized.
- the Control valve has a longitudinally displaceable in a bore control piston a control edge, which separates a high pressure system from a low pressure system. At the control piston of the control valve are different pressure chambers for Connection of control lines necessary from the inside with the high pressure of the Injection system are acted upon.
- the fuel injector according to the invention with the characterizing features of Claim 1 has the advantage that the pressure piston portion and the Control piston section of the control piston, with different diameters are executed, are guided in each case separate guide elements. For the different diameter of these sections of the control piston is thus no Double guide on a common guide element necessary, whereby the Manufacturing costs for the control valve is reduced. This will be the Production controllability and reproducibility for mass production improved.
- the control valve on the control piston and the thus in Compressive forces acting on components which are in contact with each other are compensated, whereby the pressure in the Control valve acting deformation forces are kept low. Consequently, none occur high notch stresses on the components, eg. B. in Bohrungsverschneidungen, so that the occurring stresses remain well below the fatigue strength values.
- control cylinder surrounds the valve chamber and a with the control edge cooperating connection channel in the pressure balanced Condition with closed sealing seat of the control piston a hydraulic connection formed between the pressure chamber and the valve chamber.
- the control cylinder formed another sealing seat in the pressure chamber, in the depressurized state the pressure chamber of a trained in the valve body Valve chamber separates. In this state, the connection channel is at the same time intermediate Pressure chamber and valve chamber closed.
- the control piston is expediently so trained to have a closing pressure surface in a control room and one of the System pressure applied and the pressure chamber exposed opening pressure surface has.
- the control edge between the control piston portion of the control piston and the Valve body is executable in many ways.
- the use of a flat seat for the Sealing seats for sealing the pressure chamber against the low pressure or Return system is particularly expedient due to any occurring Axial offset of the components can be compensated.
- the closing Pressure force across the pressure surface of the control piston enough closing force available to Flat seat to guarantee a sufficiently high surface pressure for a good tightness.
- it is possible to assist the valve movement of the control piston additional spring forces act on the control piston.
- the control valve is particularly useful in conjunction with a Pressure booster between the high pressure source and injector is connected, wherein the pressure booster means one with a Compressor piston has cooperating return chamber, that of the control valve is controlled, so that a pressure change in the pressure chamber on the injection valve acting pressure translation takes place.
- FIGURE shows a schematic sectional view of a Inventive fuel injector.
- the fuel injector shown in the figure is connected via a fuel line 3 with a Kraflstoffhoch horretti 5 connected.
- the high-pressure fuel source 5 includes several elements not shown, such as fuel tank, high-pressure pump and a High-pressure line, for example, a conventional rail system known per se, wherein the pump, for example, up to 1600 bar high fuel pressure over the High pressure line provides.
- the fuel injector further includes Fuel injection valve 10, which with injection openings 11 into a combustion chamber of a Internal combustion engine protrudes.
- the fuel injection valve 10 has a closing piston designed as a valve needle 12 with a pressure shoulder 13 which is surrounded by a pressure chamber 14. Of the Closing piston 12 is at an end facing away from the combustion chamber in a guide region 15 out, followed by a closing pressure chamber 16 connects.
- the closing piston 12 is by means a closing spring 17 biased in the closing direction.
- the fuel injector also has a pressure boost over Pressure booster 20.
- the pressure booster 20 has a by means of a return spring 18 resiliently mounted booster piston 21, a first Partial piston 22 and a smaller diameter second partial piston 23 has.
- the Partial piston 22, 23 is in each case a corresponding, stepped in diameter trained Cylinder 24 assigned, so that the smaller diameter piston 23 part in the cylinder 24 separates a high-pressure chamber 25 from a rear space 26 liquid-tight.
- the im Diameter Largest part pistons 22 which in the cylinder portion of the cylinder 24th with the larger diameter also separates the back space 26 from one Pressure transfer chamber 27 liquid-tight.
- the Return spring 18 In the pressure translation space 27 is the Return spring 18 arranged to generate a corresponding return movement for the booster piston 21 between a spring holder 28 and a ring member 29th is biased.
- the fuel injector via a servo valve which has a hydraulic Control valve 30 and an electrically controllable switching valve 50 includes, wherein the Actuation of an electromagnetic or piezoelectric actuator 51 takes place.
- the switching valve 50 has an actuator piston 52 connected to the actuator 51, the is guided in an actuator bore 53.
- the actuator piston 52 separates with an actuator-side Sealing seat 54 a Aktor facultyen low-pressure chamber 55 from an actuator-side control chamber 56 liquid-tight.
- the control valve 30 has a valve body 31 with a receptacle 32.
- a bush 33 is arranged, in which a control piston 34 with a Pressure piston section 35 is guided.
- the control piston 34 further comprises a Control piston portion 36, which has a smaller diameter than the pressure piston portion 35 owns.
- the control piston portion 36 has a guide portion with a Sealing edge acting control edge 45 on.
- the spool portion 36 is connected to the Guide portion guided in a piston guide 43 of a control cylinder 41, wherein the Control cylinder 41 also disposed in the receptacle 32 and as one of the socket 33 separate guide element for control piston 34 is present.
- the control piston 34 has at the pressure piston portion 35 in a control chamber 37 facing pressure surface 38. Between the pressure piston portion 35 and the control piston portion 36 is an annular surface formed, which forms an opening pressure surface 39, as will be explained later.
- the receptacle 32 forms a pressure chamber 40, in which the socket 33 and the Control cylinder 41 are acted upon from the outside with system pressure.
- a sealing seat 46 provided on the bottom surface of the Pressure chamber 40 acts and formed in the control cylinder 41 valve chamber 47th from a connection chamber connected to a low pressure or return system 48 separates.
- the control cylinder 41 further has an end face with a sealing surface or Sealing edge, which forms a further sealing seat 42 at the bottom of the receptacle 32, which separates the pressure chamber 40 from the valve chamber 47.
- On the control cylinder 41 acts a compression spring 49, which is the sealing seat 42, in particular in the pressure-relieved state presses against the bottom surface of the pressure chamber 40.
- Connecting channel 44 is formed, which in the closed state of the sealing seat 46 a hydraulic connection between the pressure chamber 40 and the valve chamber 47 forms.
- Pressure booster 20, control valve 30 and switching valve 40 serve Pressure lines that are integrated, for example, in the fuel injector.
- Pressure chamber 14 of the injection valve 10 is connected to a first pressure line 61 with the High-pressure chamber 25 of the pressure booster 20 connected.
- Closing pressure chamber 16 of the injection valve 10 leads to a second pressure line 62 to Rear chamber 26 of the pressure booster 20.
- Connecting line 63 with throttle between closing pressure chamber 16 and high-pressure chamber 25 is over the High pressure line 3 in the pressure chamber 40 and from there via a pressure chamber line 64 in the pressure transmission chamber 27 of the pressure booster 20 guided.
- a return space line 65 connects the rear space 26 of Pressure booster 20 with the valve chamber 47 of the control valve 30.
- Connecting chamber 48 performs a first return line 71 via the low pressure or Return system in a Kraflstofftank not shown back.
- the control room 33 of Control valve 30 is connected by means of a control line 66 via an outlet throttle 67 with the Actuator-side control chamber 56 of the switching valve 50 is connected.
- a second return line 72 leads out of the actuator-side low-pressure chamber 55 of the switching valve 50 in the Low pressure or return system into it.
- the return lines 71, 72 can also as a be formed common return system.
- a connection hole leads 68 via an inlet throttle 69 from the control chamber 33 into the pressure chamber 40 of the control valve 30th
- the operation of the fuel injector is as shown below: At the beginning the injection process is due to the constant pressure in the high-pressure accumulator 5 of the Pressure translation space 27 applied pressure on the return chamber line 65 also in Rear chamber 26 and the second pressure line 62 and the connecting line 63 in High-pressure chamber 25 and from there the first pressure line 61 in the pressure chamber 14 of the Injection valve 10 on.
- the actuator 51 of the switching valve 50 in the present Embodiment is a solenoid valve is energized so that the actuator piston 52 with the control chamber 33 of the control valve 30 related control line 66 against the actuator-side communicating with the second return line 72 Low pressure chamber 55 closes.
- the opening stroke of the closing piston 12 of the injector 10 thereby becomes initiated by due to a corresponding energization of the actuator 51 of the Aktorkolben 52 lifts from the actuator-side sealing seat 54, so that the control chamber 33 with the actuator-side control chamber 56 and the actuator-side low-pressure chamber 55 connected becomes.
- the flow resistances of the inlet throttle 69 and the outlet throttle 67 are so dimensioned that the pressure in the control chamber 33 drops and the control piston 34 with the End face of the control piston portion 36 lifts off from the sealing seat 46 and at the same time Control edge 45 on the piston guide 43, the connecting channel 44 closes.
- the switching valve 50 is back in his Starting position Convicted. This is due to the seating of the control piston 34 the sealing seat 46 of the rear space 26 of the pressure booster 20 of the Return line 71 separated and again over the valve chamber 47, the connecting channel 44 and the pressure chamber 40 subjected to system pressure.
- the system pressure is over the Return line 65 also passed into the rear space 26, whereby the Pressure booster piston 21 supported by the return spring 18 in his Starting position is returned.
- dropped pressure in the high-pressure chamber 25 System pressure whereby in the pressure chamber 14 also system pressure is applied again, wherein the high-pressure space 25 is filled via the connecting line 63 from the fuel source 5 becomes.
- the provision of the locking piston 12 is thereby also through the second Pressure line 62 applied system pressure, supported by the pressure in the closing chamber 16th arranged closing spring 17 realized.
Abstract
Description
- 3
- Kraftstoffleitung
- 5
- Kraftstoffhochdruckquelle
- 10
- Kraftstoffeinspritzventil
- 11
- EinspritzöfFnung
- 12
- Schließkolben
- 13
- Druckschulter
- 14
- Druckraum
- 15
- Führungsbereich
- 16
- Schließdruckraum
- 17
- Schließfeder
- 18
- Rückstellfeder
- 20
- Druckübersetzungseinrichtung
- 21
- Übersetzetkolben
- 22
- erster Teilkolben
- 23
- zweiter Teilkolben
- 24
- Zylinder
- 25
- Hochdruckraum
- 26
- Rückraum
- 27
- Druckübersetzungsraum
- 28
- Federhalter
- 29
- Ringelement
- 30
- Steuerventil
- 31
- Ventilkörper
- 32
- Aufnahme
- 33
- Buchse
- 34
- Steuerkolben
- 35
- Druckkolbenabschnitt
- 36
- Steuerkolbenabschnitt
- 37
- Steuerraum
- 38
- Druckfläche
- 39
- Öffnende Druckfläche
- 40
- Druckraum
- 41
- Steuerzylinder
- 42
- Dichtsitz
- 43
- Zylinderführung
- 44
- Verbindungskanal
- 45
- Steuerkante
- 46
- Dichtsitz
- 47
- Ventilkammer
- 48
- Verbindungskammer
- 49
- Druckfeder
- 50
- Schaltventil
- 51
- Aktor
- 52
- Aktorkolben
- 53
- Aktorbohrung
- 54
- aktorseitiger Dichtsitz
- 55
- aktorseitiger Niederdruckraum
- 56
- aktorseitiger Steuerraum
- 61
- erste Druckleitung
- 62
- zweite Druckleitung
- 63
- Verbindungsleitung
- 64
- Druckraumleitung
- 65
- Rückraumleitung
- 66
- Steuerleitung
- 67
- Zulaufdrossel
- 68
- Verbindungsbohrung
- 69
- Zulaufdrossel
- 71
- erste Rücklaufleitung
- 72
- zweite Rücklaufleitung
Claims (10)
- Kraftstoffinjektor für Brennkraftmaschine mit einem mit einer Hochdruckquelle in Verbindung stehenden Kraftstoffeinspritzventil (10) und einem Steuerventil (30), das in einem Ventilkörper (31) einen längsverschiebbar angeordneten Steuerkolben (34) umfasst, welcher einen in einer Buchse (33) geführten Druckkolbenabschnitt (35) mit einer ersten Druckfläche (38) und einen Steuerkolbenabschnitt (36) mit einer eine Steuerkante (45) aufweisenden Schieberdichtung aufweist, wobei die Buchse (33) in einem Druckraum (40) des Ventilkörpers (41) angeordnet und zumindest teilweise von außen mit Systemdruck beaufschlagt ist, wobei der Steuerkolben (34) in einer ersten Ventilstellung mittels eines Dichtsitzes (46), der von der Druckfläche (38) beaufschlagt ist, eine Ventilkammer (47) von einem Niederdruck- bzw. Rücklaufsystem trennt, und wobei der Steuerkolben (34) in einer zweiten Ventilstellung mittels der Steuerkante (45) den Druckraum (40) von der Ventilkammer (47) getrennt und gleichzeitigüber den Dichtsitz (46) eine Verbindung der Ventilkammer (47) zum Niederdruck- bzw. Rücklaufsystem hergestellt und dabei eine Betätigung des Kraftstoffeinspritzventils (10) eingeleitet wird, dadurch gekennzeichnet, dass der Steuerkolbenabschnitt (36) des Steuerkolbens (34) mit der Steuerkante (45) in einem im Druckraum (40) des Ventillörpers (31) angeordneten und von der Buchse (33) getrennten Steuerzylinder (41) geführt ist.
- Kraftstoffinjektor nach Anspruch 1, dadurch gekennzeichnet, dass ein mit der Steuerkante (45) zusammenwirkender Verbindungskanal (44) in einem Führungsbereich des Steuerkolbenabschnitts (36) ausgebildet ist, derart, dass im deaktivierten Zustand bei geschlossenem Dichtsitz (46) des Steuerkolbens (34) eine hydraulische Verbindung zwischen Druckraum (40) und Ventilkammer (47) vorliegt.
- Kraftstoffinjektor nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Steuerzylinder (41) einen weiteren Dichtsitz (42) aufweist, der im druckentlasteten Zustand der Ventilkammer (47) den Druckraum (40) von der Ventilkammer (47) trennt.
- Kraftstoffinjektor nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass eine auf den Steuerzylinder (41) in Schließrichtung des weiteren Dichtsitzes (42) einwirkende Druckfeder (49) angeordnet ist.
- Kraftstoffinjektor nach Anspruch 1, dadurch gekennzeichnet, dass der Steuerkolben (34) eine dem Druckraum (40) ausgesetzte, vom Systemdruck beaufschlagte und sündig in Öffungsrichtung auf den Dichtsitz (46) wirkende öffnende Druckfläche (39) aufweist.
- Kraftstoffinjektor nach Anspruch 1, dadurch gekennzeichnet, dass die Druckfläche (38) in der Buchse einen Steuerraum (37) begrenzt, der mittels eines Schaltventils (50) zwischen einem Anschluss an den Systemdruck und das Niederdruck- bzw. Rücklaufsystem schaltbar ist.
- Kraftstoffinjektor nach Anspruch 1, dadurch gekennzeichnet, dass der Dichtsitz (46) des Steuerkolbens (34) mit einem Flachsitz ausgeführt sind.
- Kraftstoffinjektor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Steuerzylinder (41) zumindest teilweise innerhalb des Druckraums (40) von außen mit Systemdruck beaufschlagt ist.
- Kraftstoff-Einspritzeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen Hochdruckquelle (5) und Einspritzventil (10) eine einen Druckübersetzerkolben (21) aufweisende Druckübersetzungseinrichtung (20) geschaltet ist, die vom Steuerventil (30) gesteuert ist.
- Kraftstoff-Einspritzeinrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Druckübersetzungseinrichtung (20) einen mit dem Druckübersetzerkolben (21) zusammenwirkenden Rückraum (26) besitzt, der vom Steuerventil (30) ansteuerbar ist, so dassüber eine Druckänderung im Druckraum (26) eine auf das Einspritzventil (10) einwirkende Druckübersetzung erfolgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004017304A DE102004017304A1 (de) | 2004-04-08 | 2004-04-08 | Servoventilangesteuerter Kraftstoffinjektor |
DE102004017304 | 2004-04-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1584814A1 true EP1584814A1 (de) | 2005-10-12 |
EP1584814B1 EP1584814B1 (de) | 2007-05-16 |
Family
ID=34895517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05100659A Expired - Fee Related EP1584814B1 (de) | 2004-04-08 | 2005-02-01 | Servoventilangesteuerter Kraftstoffinjektor |
Country Status (4)
Country | Link |
---|---|
US (1) | US7210639B2 (de) |
EP (1) | EP1584814B1 (de) |
DE (2) | DE102004017304A1 (de) |
ES (1) | ES2284123T3 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008019910A1 (de) * | 2006-08-18 | 2008-02-21 | Robert Bosch Gmbh | Kraftstoffinjektor mit kolbenrückholung eines druckübersetzerkolbens |
CN102852686A (zh) * | 2011-06-27 | 2013-01-02 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | 用于大型涡轮增压二冲程柴油发动机的燃料阀 |
WO2017071992A1 (en) * | 2015-10-27 | 2017-05-04 | Delphi International Operations Luxembourg S.À R.L. | Control valve arrangement of a fuel injector |
CN114405764A (zh) * | 2022-02-23 | 2022-04-29 | 无锡冰平自动化技术有限公司 | 一种阀座型腔开合行程相同的注胶管体 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3994990B2 (ja) * | 2004-07-21 | 2007-10-24 | 株式会社豊田中央研究所 | 燃料噴射装置 |
JP4305394B2 (ja) * | 2005-01-25 | 2009-07-29 | 株式会社デンソー | 内燃機関用燃料噴射装置 |
US7568632B2 (en) * | 2006-10-17 | 2009-08-04 | Sturman Digital Systems, Llc | Fuel injector with boosted needle closure |
JP2009103080A (ja) * | 2007-10-24 | 2009-05-14 | Denso Corp | 燃料噴射弁 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10123917A1 (de) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem |
DE10123914A1 (de) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung mit Druckübersetzungseinrichtung und Druckübersetzungseinrichtung |
DE10123911A1 (de) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung mit Druckübersetzungseinrichtung und Druckübersetzungseinrichtung |
WO2004003375A1 (de) * | 2002-06-29 | 2004-01-08 | Robert Bosch Gmbh | Einrichtung zur dämpfung des nadelhubes an kraftstoffinjektoren |
WO2004088122A1 (de) * | 2003-04-02 | 2004-10-14 | Robert Bosch Gmbh | Servoventilangesteuerter kraftstoffinjektor mit druckübersetzer |
EP1507082A1 (de) * | 2003-08-14 | 2005-02-16 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2145080A5 (de) * | 1971-07-08 | 1973-02-16 | Peugeot & Renault | |
US5669355A (en) * | 1994-07-29 | 1997-09-23 | Caterpillar Inc. | Hydraulically-actuated fuel injector with direct control needle valve |
US5687693A (en) * | 1994-07-29 | 1997-11-18 | Caterpillar Inc. | Hydraulically-actuated fuel injector with direct control needle valve |
US5975139A (en) * | 1998-01-09 | 1999-11-02 | Caterpillar Inc. | Servo control valve for a hydraulically-actuated device |
DE10218904A1 (de) * | 2001-05-17 | 2002-12-05 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung |
-
2004
- 2004-04-08 DE DE102004017304A patent/DE102004017304A1/de not_active Withdrawn
-
2005
- 2005-02-01 DE DE502005000719T patent/DE502005000719D1/de active Active
- 2005-02-01 ES ES05100659T patent/ES2284123T3/es active Active
- 2005-02-01 EP EP05100659A patent/EP1584814B1/de not_active Expired - Fee Related
- 2005-03-30 US US11/092,751 patent/US7210639B2/en not_active Expired - Fee Related
Patent Citations (6)
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DE10123917A1 (de) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem |
DE10123914A1 (de) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung mit Druckübersetzungseinrichtung und Druckübersetzungseinrichtung |
DE10123911A1 (de) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung mit Druckübersetzungseinrichtung und Druckübersetzungseinrichtung |
WO2004003375A1 (de) * | 2002-06-29 | 2004-01-08 | Robert Bosch Gmbh | Einrichtung zur dämpfung des nadelhubes an kraftstoffinjektoren |
WO2004088122A1 (de) * | 2003-04-02 | 2004-10-14 | Robert Bosch Gmbh | Servoventilangesteuerter kraftstoffinjektor mit druckübersetzer |
EP1507082A1 (de) * | 2003-08-14 | 2005-02-16 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2008019910A1 (de) * | 2006-08-18 | 2008-02-21 | Robert Bosch Gmbh | Kraftstoffinjektor mit kolbenrückholung eines druckübersetzerkolbens |
US8210454B2 (en) | 2006-08-18 | 2012-07-03 | Robert Bosch Gmbh | Fuel injector with piston restoring of a pressure intensifier piston |
CN101506513B (zh) * | 2006-08-18 | 2012-08-08 | 罗伯特·博世有限公司 | 具有增压器活塞的活塞返回的燃料喷射器 |
CN102852686A (zh) * | 2011-06-27 | 2013-01-02 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | 用于大型涡轮增压二冲程柴油发动机的燃料阀 |
EP2541037A3 (de) * | 2011-06-27 | 2013-07-31 | MAN Diesel & Turbo, filal af MAN Diesel & Turbo SE, Tyskland | Einspritzdüse für Zweitakt-Dieselmotoren mit großem Hubraum und Turboaufladung |
CN102852686B (zh) * | 2011-06-27 | 2015-12-16 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | 用于大型涡轮增压二冲程柴油发动机的燃料阀 |
EP3406891A1 (de) * | 2011-06-27 | 2018-11-28 | MAN Diesel & Turbo, filal af MAN Diesel & Turbo SE, Tyskland | Einspritzdüse für zweitakt-dieselmotoren mit grossem hubraum und turboaufladung |
WO2017071992A1 (en) * | 2015-10-27 | 2017-05-04 | Delphi International Operations Luxembourg S.À R.L. | Control valve arrangement of a fuel injector |
KR20180067689A (ko) * | 2015-10-27 | 2018-06-20 | 델피 테크놀로지스 아이피 리미티드 | 연료 분사기의 제어 밸브 장치 |
CN114405764A (zh) * | 2022-02-23 | 2022-04-29 | 无锡冰平自动化技术有限公司 | 一种阀座型腔开合行程相同的注胶管体 |
Also Published As
Publication number | Publication date |
---|---|
ES2284123T3 (es) | 2007-11-01 |
DE102004017304A1 (de) | 2005-10-27 |
US20050224599A1 (en) | 2005-10-13 |
EP1584814B1 (de) | 2007-05-16 |
US7210639B2 (en) | 2007-05-01 |
DE502005000719D1 (de) | 2007-06-28 |
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