EP1304475A1 - Injecteur de carburant - Google Patents

Injecteur de carburant Download PDF

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Publication number
EP1304475A1
EP1304475A1 EP02022363A EP02022363A EP1304475A1 EP 1304475 A1 EP1304475 A1 EP 1304475A1 EP 02022363 A EP02022363 A EP 02022363A EP 02022363 A EP02022363 A EP 02022363A EP 1304475 A1 EP1304475 A1 EP 1304475A1
Authority
EP
European Patent Office
Prior art keywords
stroke
nozzle needle
spring
injection valve
valve according
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Withdrawn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
EP02022363A
Other languages
German (de)
English (en)
Inventor
Kirsten Oliver
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 EP1304475A1 publication Critical patent/EP1304475A1/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Withdrawn legal-status Critical Current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
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/161—Means for adjusting injection-valve lift
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift

Definitions

  • the invention is based on an injection valve with a valve control module and a nozzle module according to that in the preamble of claim 1 defined in more detail.
  • An injector known from practice which introduces mentioned type comprises a nozzle body of a nozzle module, in which a nozzle needle is axially displaceable and the one facing a combustion chamber of the internal combustion engine End is provided with several injection openings.
  • the injection valve comprises a valve control module, which has a module housing and an arranged thereon Piezoelectric actuator module.
  • the piezoelectric Actuator module closes a valve member arrangement on which an adjustment path of the piezoelectric Transfer actuator modules to a valve closing element becomes.
  • the valve member arrangement has a first piston, one so-called control piston, and a second piston, one so-called actuating piston, between which one hydraulic translation device or a hydraulic Coupler is arranged.
  • the hydraulic coupler also serves the compensation of axial differences in length, the caused by temperature differences.
  • the nozzle needle is moved using the valve control module Controlled pressure changes in a so-called valve control room, the pressure changes in the valve control chamber lead to an axial displacement of the nozzle needle, whereby in turn to the combustion chamber of the internal combustion engine leading injection openings of the nozzle body released or be closed.
  • the opening stroke of the nozzle module is precisely set in practice.
  • the setting is made in that a nozzle needle face, which is a throttle plate of the valve control module facing is processed by grinding. By targeted removal on the face of the nozzle needle becomes the desired stroke of the nozzle module or nozzle needle manufactured.
  • a length of the nozzle needle is set such that a Real stroke value greater than one for optimal functionality required defined stroke value of the valve is dependent on a positive deviation from a real one Stroke value from a defined stroke value of the nozzle needle Means for reducing the real stroke in the direction the defined stroke of the nozzle needle are provided, has the advantage that an adjustment of the stroke the nozzle needle without complex machining of a nozzle needle face is feasible.
  • FIG. 1 is an injection valve 1 with a valve control module 2 and a nozzle module 3 shown.
  • the valve control module 2 is formed with an actuator module 4, wherein the actuator module is a piezoelectric actuator unit represents.
  • a valve member arrangement is connected to the actuator module 4 5 on, which an actuating piston 6 and a Actuating piston 7, being between these two Pistons 6, 7 as a hydraulic coupler or hydraulic Translation and to compensate for temperature-related Length fluctuations of the injection valve 1 working hydraulic chamber 8 is provided.
  • the injection valve 1 with a high pressure connection 9 provided, via which a in a housing 10 of Valve control modules 2 running channel 11 with common rail high pressure standing fuel that is fed is fed to the nozzle module 3, the common rail pressure can assume up to 1.5 kbar.
  • the injection valve 1 with a pressure relief valve 12 provided, via which a system pressure of a Low pressure range of the injector 1 set becomes.
  • the system pressure of injector 1 can have values Accept between 2 bar and 50 bar, using the pressure relief valve 12 in the present case preferably one System pressure of 30 bar is set.
  • Another channel 13 of the injection valve 1 represents a return area which generally has a pressure of about 1 bar.
  • Figure 2 shows the nozzle module 3 in a more detailed and enlarged view, with a nozzle needle 14 in one Nozzle body 15 is arranged axially displaceable.
  • the in the nozzle body 15 shown in more detail in FIG the representation in Figure 1 on a throttle plate 16 of the Valve control module 2 and is via a nozzle clamping nut 17 firmly connected to the housing 10 of the valve control module 2.
  • the nozzle needle 14 acts on the valve control module 2 opposite end with a valve seat 18 of the nozzle body 15 together in such a way that when the nozzle needle 14 lifts off from the valve seat 18 injection openings 26 of the nozzle body 15 are released and an injection of fuel takes place in a combustion chamber of an internal combustion engine.
  • the nozzle needle 14 is in the nozzle body 15 against one on the nozzle needle 14 in the closing direction the nozzle needle 14 acting spring force of a spring 19 from the valve seat 18 in the direction of the valve control module 2 or the throttle plate 16 moves.
  • the spring 19 is supported by the valve control module 2 opposite end via a washer 20 on a shoulder 21 the nozzle needle 14. On the valve control module 2 facing At the end, the spring 19 lies on a so-called spring plate 22, which in turn is not shown in detail Mode on the throttle plate 16 from FIG. 1 supported.
  • the nozzle needle 14, the spring plate 22 and the throttle plate 16 delimit a control room 23, in each of which in the present case an inlet throttle 24 and an outlet throttle 25, such as shown in Figure 3, open.
  • FIG 3 the area of the spring plate 22 of the Injector 1 shown in an enlarged view, wherein the nozzle needle 14 on the throttle plate 16 facing End face with a 27 formed as a stroke Means for reducing a real stroke value of the nozzle needle 14 is provided.
  • the stroke adjusting disc 27 has a central bore 28 through which a spot weld for firmly connecting the stroke adjusting disc 27 to the nozzle needle 14 can be attached without post-processing the nozzle needle 14 or the stroke adjusting disc 27 the welding process.
  • the stroke adjusting disk 27 according to the embodiment according to FIG. 3 is at its end facing the throttle plate 16 with a executed such a diameter that when the Nozzle needle 14 on throttle plate 16, inlet throttle 24 and the discharge throttle 25 from the stroke adjusting disc 27 are not completely covered and a desired flow rate is guaranteed.
  • the stroke shim 27 is a prefabricated classified Disc for setting the stroke value of the nozzle needle 14, which a required determined in a measurement process Slice thickness for setting one for one proper functioning of the injector 1 required has defined stroke values.
  • the stroke adjustment disc 27 is on the end face of the nozzle needle 14 welded on, so that the stroke of the nozzle needle 14, which is limited in the present case by the throttle plate 16, by the Height of the stroke adjusting disc 27 is reduced.
  • Figure 4 represents the embodiment shown in Figure 3 the travel path limitation is an alternative, that the stroke adjusting disc is welded to the throttle plate is and is formed with through holes 29 which with the inlet throttle 24 and the outlet throttle 25 at least are almost congruent. So that the flow of the Inlet throttle 24 and outlet throttle 25 guaranteed and not affected by the stroke adjusting disc 27.
  • the Throttle plate 16 becomes dependent during assembly the required flow rates of the outlet throttle 25 and Inlet throttle 24 taken from an associated classification.
  • the required disk thickness of the stroke adjusting disk 27 is used during a to determine the real stroke value intended measuring method determined. Then one becomes appropriate classified stroke adjusting disc 27 used and welded onto the throttle plate 16, the stroke adjusting disc 27 with respect to the chokes 24, 25 when welding is aligned.
  • the stroke adjusting disc 27 according to FIG. 3 and the figure 4 is a stamped part, the Plan sides are ground. This shows a high Surface quality.
  • the stroke adjustment disc but also produced in another suitable way be and z. B. represent a turned part.
  • An injection valve which is connected to the stroke adjusting disc 27 3 and 4 is provided with a valve control chamber 23 which is small Control room volume.
  • This has the advantage that only a minimal fuel reservoir in the area of the spring plate 22 is present in the injector 1. additionally arises in particular in the exemplary embodiment according to Figure 4, the possibility of the flow through the throttle plate 16 and the stroke of the nozzle needle 14 adjust separately from each other, adjusting the setting of the flow through the positioning of the stroke adjustment disc 27 results in relation to the throttle plate 16.
  • Figures 5, 6 and 7 show an alternative to that in the figures 3 and 4 fixed connection between the stroke adjusting disc 27 and the throttle plate 16 or the nozzle needle 14 a further design to limit the Stroke value of the nozzle needle 14.
  • the stroke adjusting disc 27 via a further spring 30 against the throttle plate 16 or the nozzle needle 14 pressed
  • the further Spring 30 between the throttle plate 16 and the stroke adjusting disc 27 or the stroke adjusting disc 27 and the nozzle needle 14 is arranged in the pretensioned installation position.
  • the further spring 30 is between the nozzle needle 14 and the stroke adjusting disc 27, wherein the nozzle needle 14 and the stroke adjusting disc 27 each with a cylindrical extension 31, 32 for guiding the further spring 30 are formed.
  • the spring force of the further spring 30 is provided such that the stroke adjusting disc 27 regardless of an axial position of the nozzle needle 14 is permanently applied to the throttle plate 16 and the closing behavior or the damping properties of the injection valve 1, which are also characterized by the spring 19, one Injector match, which without the additional spring 30 is formed. That means that the spring force of the another spring 30 is very small or that the spring force the further spring 30 and the spring force of the spring 19 accordingly must be coordinated.
  • the diameter of the stroke adjusting disk 27 is provided in such a way that a flow of the inlet throttle 24 and the outlet throttle 25 not influenced in an undesirable manner becomes.
  • the receiving space of the further spring 30 is through the Stroke dial 27 and the nozzle needle 14 in the area of two cylindrical extensions 31, 32 formed, whereas in the exemplary embodiment according to FIG. 6, the receiving space the further spring 30 by one in the throttle plate 16 provided recess 33 is formed. in this connection is the stroke adjustment disc via the further spring 30 pressed against the end face of the nozzle needle 14.
  • FIG. 7 there is a receiving space for the further spring 30 Blind hole 34 formed as a stroke adjusting element 35 By means of reducing a real stroke of the Nozzle needle 14 is provided.
  • This embodiment draws is easy to assemble because the spring is exact positioned in the blind hole 34 of the stroke adjusting element 35 is.
  • the further spring 30 is in the present case as a helical spring trained, of course at the discretion of the Is more skilled, the further spring 30 as a corrugated spring or form a disc spring. Beyond that of course, any other for the concerned Suitable spring type can be used.
  • FIG. 8 shows the throttle plate 16, which is a stepped, classified throttle plate is executed.
  • throttle plate 16 in the area of valve control chamber 22 formed with a throttle plate heel 37, which for Reduce the stroke value of the nozzle needle 14 provided is.
  • the throttle plate 16 with the throttle plate shoulder 37 selected from a particular class, where the classification of the throttle plates depending the height of the throttle plate heels is made. Which one Class the throttle plate 16 is removed is in Dependency of the measuring method in which a positive Deviation of the real stroke value of the nozzle needle 14 from the defined stroke value is determined.
  • the end face of the throttle plate heel 37 during a so-called final grinding the rest of the bearing surface 38 of the throttle plate 16 in one Manufacturing process is set precisely.
  • the final grinding the valve control chamber 23 or the spring plate 22 facing Surface of the throttle plate 16 is in two operations carried out.
  • the high-precision grading of the throttle plate 16 is then controlled by a so-called in-process measurement control, i.e. H. while verifying the stroke value, and a subsequent one Classification of the grading achieved.
  • FIGS. 9 and 10 show a further embodiment a means designed as a stroke adjusting disc for Reduce the actual stroke value of the nozzle needle 14 is the stroke adjusting disc 27 as one over the nozzle needle 14 guided washer formed, which on the paragraph 21 of the nozzle needle 14 rests.
  • the stroke of the nozzle needle is here from the stroke adjusting disc 27 and above arranged spring plate 22 limited.
  • the spring 19 Between the spring plate 22 and the stroke adjusting disc 27 is the spring 19 arranged, the spring force of which between one Spring plate 22 and the spring 19 arranged spring force adjusting washer 39 is set.
  • the spring washer 39 can also in the previously described Embodiments according to Figures 1 to 7 for adjustment the spring force of the spring 19 may be provided.
  • the difference between the two embodiments according to Figures 9 and 10 is in the design of the spring plate 22 given.
  • the spring plate 22 has a sleeve-like Area on which in Figure 9, the spring force adjusting washer 39 and the spring 19 surrounds, and which according to the Representation in Figure 10 of the spring 19 and the spring force adjusting washer 39 is surrounded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
EP02022363A 2001-10-20 2002-10-08 Injecteur de carburant Withdrawn EP1304475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001152268 DE10152268A1 (de) 2001-10-20 2001-10-20 Einspritzventil
DE10152268 2001-10-20

Publications (1)

Publication Number Publication Date
EP1304475A1 true EP1304475A1 (fr) 2003-04-23

Family

ID=7703434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022363A Withdrawn EP1304475A1 (fr) 2001-10-20 2002-10-08 Injecteur de carburant

Country Status (3)

Country Link
EP (1) EP1304475A1 (fr)
JP (1) JP2003161228A (fr)
DE (1) DE10152268A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007057254A1 (fr) * 2005-11-21 2007-05-24 Robert Bosch Gmbh Plaque intermediaire pour un injecteur de carburant et injecteur de carburant
WO2008049665A1 (fr) * 2006-10-23 2008-05-02 Robert Bosch Gmbh Dispositif à soupape d'injection de carburant
EP1794442B1 (fr) * 2004-09-28 2013-06-26 Electro-Motive Diesel, Inc. Injecteur de carburant a ressort de valve resistant a perte de vop a applications sur moteur a emissions conformes
EP2957760A1 (fr) * 2014-06-16 2015-12-23 Robert Bosch Gmbh Ensemble de buses pour un injecteur de carburant et injecteur de carburant
WO2016188577A1 (fr) * 2015-05-28 2016-12-01 Robert Bosch Gmbh Injecteur à rampe commune
GB2549095A (en) * 2016-04-04 2017-10-11 Delphi Int Operations Luxembourg Sarl Fuel injector

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6135484B2 (ja) * 2013-12-03 2017-05-31 株式会社デンソー 燃料噴射弁
JP6708366B2 (ja) * 2015-03-09 2020-06-10 株式会社デンソー 燃料噴射装置及び燃料噴射装置の製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472142A (en) * 1992-08-11 1995-12-05 Nippondenso Co., Ltd. Accumulator fuel injection apparatus
US6027037A (en) * 1995-12-05 2000-02-22 Denso Corporation Accumulator fuel injection apparatus for internal combustion engine
GB2340610A (en) * 1998-08-18 2000-02-23 Lucas Ind Plc Needle lift sensor
DE19849933A1 (de) * 1998-10-29 2000-05-11 Siemens Ag Stellanordnung, insbesondere zur mechanischen Ansteuerung eines Einspritzventils einer Brennkraftmaschine
DE19939939A1 (de) * 1999-08-23 2001-04-19 Bosch Gmbh Robert Injektor für ein Common-Rail-Einspritzsystem für Brennkraftmaschinen mit kompakter Bauweise
EP1186773A2 (fr) * 2000-09-06 2002-03-13 Toyota Jidosha Kabushiki Kaisha Injecteur de combustible

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9606803D0 (en) * 1996-03-30 1996-06-05 Lucas Ind Plc Injection nozzle
DE19936669A1 (de) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Common-Rail-Injektor
DE19936668A1 (de) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Common-Rail-Injektor
DE19949527A1 (de) * 1999-10-14 2001-04-19 Bosch Gmbh Robert Injektor für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen mit in den Ventilsteuerraum ragender Düsennadel
US6293254B1 (en) * 2000-01-07 2001-09-25 Cummins Engine Company, Inc. Fuel injector with floating sleeve control chamber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472142A (en) * 1992-08-11 1995-12-05 Nippondenso Co., Ltd. Accumulator fuel injection apparatus
US6027037A (en) * 1995-12-05 2000-02-22 Denso Corporation Accumulator fuel injection apparatus for internal combustion engine
GB2340610A (en) * 1998-08-18 2000-02-23 Lucas Ind Plc Needle lift sensor
DE19849933A1 (de) * 1998-10-29 2000-05-11 Siemens Ag Stellanordnung, insbesondere zur mechanischen Ansteuerung eines Einspritzventils einer Brennkraftmaschine
DE19939939A1 (de) * 1999-08-23 2001-04-19 Bosch Gmbh Robert Injektor für ein Common-Rail-Einspritzsystem für Brennkraftmaschinen mit kompakter Bauweise
EP1186773A2 (fr) * 2000-09-06 2002-03-13 Toyota Jidosha Kabushiki Kaisha Injecteur de combustible

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1794442B1 (fr) * 2004-09-28 2013-06-26 Electro-Motive Diesel, Inc. Injecteur de carburant a ressort de valve resistant a perte de vop a applications sur moteur a emissions conformes
WO2007057254A1 (fr) * 2005-11-21 2007-05-24 Robert Bosch Gmbh Plaque intermediaire pour un injecteur de carburant et injecteur de carburant
CN101313142B (zh) * 2005-11-21 2011-01-26 罗伯特·博世有限公司 燃料喷射器用的间隔板及燃料喷射器
US7891587B2 (en) 2005-11-21 2011-02-22 Robert Bosch Gmbh Intermediate plate for a fuel injector, and fuel injector
WO2008049665A1 (fr) * 2006-10-23 2008-05-02 Robert Bosch Gmbh Dispositif à soupape d'injection de carburant
EP2957760A1 (fr) * 2014-06-16 2015-12-23 Robert Bosch Gmbh Ensemble de buses pour un injecteur de carburant et injecteur de carburant
WO2016188577A1 (fr) * 2015-05-28 2016-12-01 Robert Bosch Gmbh Injecteur à rampe commune
GB2549095A (en) * 2016-04-04 2017-10-11 Delphi Int Operations Luxembourg Sarl Fuel injector
EP3228858A1 (fr) * 2016-04-04 2017-10-11 Delphi International Operations Luxembourg S.à r.l. Injecteur de carburant

Also Published As

Publication number Publication date
DE10152268A1 (de) 2003-04-30
JP2003161228A (ja) 2003-06-06

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