EP1692393B1 - Injecteur destine a l'injection de carburant dans les chambres de combustion de moteurs a combustion interne, notamment injecteur a pression modulee (common-rail) commande par un actionneur piezo-electrique - Google Patents

Injecteur destine a l'injection de carburant dans les chambres de combustion de moteurs a combustion interne, notamment injecteur a pression modulee (common-rail) commande par un actionneur piezo-electrique Download PDF

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Publication number
EP1692393B1
EP1692393B1 EP04786749A EP04786749A EP1692393B1 EP 1692393 B1 EP1692393 B1 EP 1692393B1 EP 04786749 A EP04786749 A EP 04786749A EP 04786749 A EP04786749 A EP 04786749A EP 1692393 B1 EP1692393 B1 EP 1692393B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
injector
valve plate
injector according
face
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.)
Active
Application number
EP04786749A
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German (de)
English (en)
Other versions
EP1692393A1 (fr
Inventor
Friedrich Boecking
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 EP1692393A1 publication Critical patent/EP1692393A1/fr
Application granted granted Critical
Publication of EP1692393B1 publication Critical patent/EP1692393B1/fr
Active 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • 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
    • 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
    • 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
    • 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
    • F02M63/0045—Three-way valves
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/001—Control chambers formed by movable sleeves

Definitions

  • the invention relates to an injector according to the preamble of patent claim 1.
  • a CR injector of the aforementioned kind is by the DE 199 36,668-A1 known.
  • a similar injector shows the DE ... (R.302723).
  • injectors require a comparatively high design effort on the sealing surfaces, in particular in the high-pressure area.
  • the object of the invention is to reduce the cost of the sealing surfaces.
  • the object is achieved in an injector of the type described by the characterizing features of claim 1.
  • valve plate in the booster piston receiving holding body is effected.
  • the entire system is thereby considerably simplified and allows a cheaper production of the injector.
  • the drawing shows - in partial view - an embodiment of a CR injector, in vertical longitudinal section.
  • a sleeve-shaped translator housing 11 is arranged with a remote centric axial bore 12 in which a piezoelectric actuator 13 and a booster piston 14 are received axially displaceable. Between the piezoelectric actuator 13 and the booster piston 14, a booster chamber 15 is formed.
  • the piezoelectric actuator 13 (which is connected in a conventional and therefore not shown manner to an electrical power supply) is biased by a translator housing 11 enclosing, designed as a tube spring biasing spring 16 in the direction of arrow 17, ie against the direction of action of the piezoelectric actuator 13.
  • a total of 18 numbered valve plate is formed, which receives a control valve 20 in a stepped axial bore 19.
  • valve plate 18 together with the booster housing 11 forms a one-piece component, so that - on a designated 21 level - the need for a seal (compared to the booster housing 11) is eliminated.
  • Translator housing 11 and valve plate 18 are received in a continuous, offset at 22 central axial bore 23 of a cylindrical holder body 24.
  • the cylindrical holding body 24 in turn is fitted in the injector body 10.
  • the valve plate 18 has a release 26 on its underside. The resulting reduced sealing surface diameter is designated d.
  • a translator housing 11 enclosing, designed as a tube spring biasing member 27 is provided, which pressurizes the valve plate 18 at 28 and the back of the shoulder 22 of the axial bore 23 of the holder body 24th supported.
  • a high-pressure channel 29 is incorporated into the holding body 24, which is in hydraulic communication via a high-pressure connection (not shown) with a high-pressure fuel accumulator (also known as common rail).
  • the high-pressure channel 29 opens out at the lower end face of the holding body 24 and is hydraulically connected there to a hole 30 incorporated in the throttle plate 25.
  • a total of 33 numbered nozzle needle is arranged axially movable.
  • a lower, tapered end of the nozzle needle 33 may be conical and cooperates with the valve seat forming the lower end of the longitudinal recess 32 together (not shown).
  • the high-pressure fuel passes - via an annular space 34 - in the longitudinal recess 32 of the nozzle body 31 and thus to the nozzle exit.
  • the nozzle needle 33 is surrounded at its upper end by a sleeve part 35 - leaving an annular gap 36 - which is supported with its cutting-shaped upper end 37 at the bottom of the throttle plate 25.
  • An inserted into an annular groove 38 of the nozzle needle 33 snap ring 39 carries a retaining washer 40.
  • a prestressed helical compression spring 41 which exerts a force on the nozzle needle 33 in the direction of arrow 42, ie in the closed position of the nozzle needle 33 ,
  • the drawing also makes clear that from the annulus 34 under high pressure fuel on the one hand - via a bore 43 - in a valve chamber 44 of the control valve 20, on the other hand - passes through the annular gap 36 - in a control chamber 45.
  • the control chamber 45 reaches its maximum volume at the closed position of the nozzle needle 33, which closes with its end the nozzle outlet (not shown). In the closed position, the nozzle needle 33 is held on the one hand by the pressure prevailing in the control chamber 45 fluid pressure and the other by the compression spring 41.
  • a further bore 46 is incorporated, which is on the one hand - via bore 30 and annular space 34 - with the high-pressure passage 29 and on the other hand - via a throttle bore 47 - with the control valve 20 in hydraulic operative connection.
  • the throttle bore 47 acts as an inlet and outlet throttle.
  • a space 48 is formed between the booster piston 14 and the control valve 20, a space 48 is formed.
  • a transverse bore 49 is incorporated in the translator housing 11, which serves the leakage return.

Claims (10)

  1. Injecteur d'injection de carburant dans les chambres de combustion de moteurs à combustion interne, notamment injecteur pour rampe commune (Common-Rail) commandé par actionneur piézo-électrique, comportant des moyens de commande (17) dans un corps d'injecteur (10), principalement un actionneur piézo-électrique (13) qui actionnent par au moins un piston amplificateur (14) une soupape de commande (20) logée dans une plaque porte-soupape (18), un corps de buse (31) ayant une sortie de buse formée au niveau de son extrémité (libre) du côté de la chambre de combustion, une aiguille d'injecteur (33) mobile, actionnée axialement dans un évidement longitudinal (32) du corps de buse (31), une rondelle d'étranglement (25) fermant l'extrémité arrière (détournée de la sortie de buse) de l'évidement longitudinal (32) entre le corps de buse (31) et la soupape de commande (20) et formant une butée d'ouverture pour l'aiguille d'injection (33), et qui coopère ce faisant avec la face frontale arrière (détournée de la sortie d'injecteur) de l'aiguille d'injection (33) et limite donc la course d'ouverture de l'aiguille d'injection (33), et une chambre de commande (45) formée entre la surface frontale arrière et l'aiguille d'injecteur et la rondelle (25), et en liaison hydraulique avec un raccord de pression (29) servant l'alimentation de carburant,
    caractérisé en ce qu'
    un corps de maintien cylindrique (24) qui loge le ou les piston(s) amplificateur(s) (14) et la plaque porte-soupape (18) contenant la soupape de commande (20) est monté dans le corps d'injecteur (10).
  2. Injecteur selon la revendication 1,
    caractérisé en ce que
    la plaque porte-soupape (18) est emboîtée dans un alésage axial central (23) du corps de maintien (24).
  3. Injecteur selon la revendication 2,
    caractérisé en ce qu'
    un boîtier d'amplificateur (11) qui loge le (les) piston(s) amplificateur(s) (14) et un actionneur piézo-électrique (13) dans un alésage axial central (12) est monté dans l'alésage axial (23) du corps de maintien (24), au-dessus de la plaque porte-soupape (18).
  4. Injecteur selon la revendication 1, 2 ou 3,
    caractérisé en ce que
    le corps de maintien (24) est placé de façon plane et étanche par sa face frontale (inférieure) du côté du corps de buse contre une face frontale (supérieure) de la rondelle d'étranglement (25).
  5. Injecteur selon une ou plusieurs des revendications précédentes,
    caractérisé en ce que
    la plaque porte-soupape (18) est ancrée de façon étanche par un élément de précontrainte (27) contre la face frontale supérieure de la rondelle (25).
  6. Injecteur selon la revendication 5,
    caractérisé en ce que
    l'élément de précontrainte (27) pressant la plaque porte-soupape (18) contre la rondelle (25) prend appui à l'arrière contre un épaulement (22) de l'alésage axial (23) du corps de maintien (24), et donc contre le corps de maintien (24).
  7. Injecteur selon la revendication 6,
    caractérisé en ce que
    la plaque porte-soupape (18) présente sur sa face frontale (inférieure) du côté de la rondelle un dégagement (26) réduisant la surface d'étanchéité de la plaque porte-soupape (18) par rapport à la rondelle (25).
  8. Injecteur selon la revendication 5, 6 ou 7,
    caractérisé en ce qu'
    un tube-ressort (27) dans l'alésage axial (23) du corps de maintien (24) sert d'élément de précontrainte, entourant ce faisant le boîtier d'amplificateur (11) sur une partie de sa longueur.
  9. Injecteur selon la revendication 5, 6 ou 7, comportant un actionneur piézoélectrique (13) précontraint par un ressort (16) dans le corps d'injecteur (10),
    caractérisé en ce que
    le ressort de précontrainte (16) de l'actionneur piézoélectrique (13) sert en même temps d'élément de précontrainte pour la plaque porte-soupape (18).
  10. Injecteur selon une ou plusieurs des revendications précédentes,
    caractérisé en ce que
    le boîtier d'amplificateur (11) et la plaque porte-soupape (18) forment un composant monobloc.
EP04786749A 2003-11-14 2004-09-09 Injecteur destine a l'injection de carburant dans les chambres de combustion de moteurs a combustion interne, notamment injecteur a pression modulee (common-rail) commande par un actionneur piezo-electrique Active EP1692393B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10353169A DE10353169A1 (de) 2003-11-14 2003-11-14 Injektor zur Einspritzung von Kraftstoff in Brennräume von Brennkraftmaschinen, insbesondere piezogesteuerter Common-Rail-Injektor
PCT/DE2004/002028 WO2005050003A1 (fr) 2003-11-14 2004-09-09 Injecteur destine a l'injection de carburant dans les chambres de combustion de moteurs a combustion interne, notamment injecteur a pression modulee (common-rail) commande par un actionneur piezo-electrique

Publications (2)

Publication Number Publication Date
EP1692393A1 EP1692393A1 (fr) 2006-08-23
EP1692393B1 true EP1692393B1 (fr) 2007-07-25

Family

ID=34585079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04786749A Active EP1692393B1 (fr) 2003-11-14 2004-09-09 Injecteur destine a l'injection de carburant dans les chambres de combustion de moteurs a combustion interne, notamment injecteur a pression modulee (common-rail) commande par un actionneur piezo-electrique

Country Status (9)

Country Link
US (1) US20070170286A1 (fr)
EP (1) EP1692393B1 (fr)
JP (1) JP2007510849A (fr)
KR (1) KR20060120105A (fr)
CN (1) CN1878949A (fr)
AT (1) ATE368177T1 (fr)
BR (1) BRPI0416579A (fr)
DE (2) DE10353169A1 (fr)
WO (1) WO2005050003A1 (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4428357B2 (ja) * 2006-04-03 2010-03-10 株式会社デンソー 燃料噴射弁
DE102006050163A1 (de) 2006-10-25 2008-04-30 Robert Bosch Gmbh Injektor mit axial-druckausgeglichenem Steuerventil
DE102006053126A1 (de) * 2006-11-10 2008-05-15 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung
DE102007020966A1 (de) 2007-05-04 2008-11-06 Robert Bosch Gmbh Piezo-Injektor
DE102007047426A1 (de) 2007-05-15 2008-11-20 Robert Bosch Gmbh Injektor mit Piezoaktor
DE102007034318A1 (de) 2007-07-24 2009-01-29 Robert Bosch Gmbh Injektor
US8539934B2 (en) 2008-04-10 2013-09-24 Bosch Corporation Injection abnormality detection method and common rail fuel injection control system
DE102008040170A1 (de) 2008-07-04 2010-01-07 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102009002835A1 (de) 2009-05-06 2010-11-11 Robert Bosch Gmbh Piezokeramik für einen Piezoaktor oder ein Piezoaktormodul
DE102009026533A1 (de) 2009-05-28 2010-12-02 Robert Bosch Gmbh Piezoaktormodul und Piezoinjektor
DE102009029380A1 (de) 2009-09-11 2011-03-24 Robert Bosch Gmbh Verfahren und Vorrichtung zur Herstellung eines piezokeramischen Bauelemets
DE102009029489A1 (de) 2009-09-16 2011-03-24 Robert Bosch Gmbh Piezoaktormodul und ein Verfahren zu dessen Herstellung
DE102009045486A1 (de) 2009-10-08 2011-04-14 Robert Bosch Gmbh Kraftstoff-Injektor
DE102010001246A1 (de) 2010-01-27 2011-07-28 Robert Bosch GmbH, 70469 Verfahren und Stoffe zur Herstellung einer Piezokeramik für einen Piezoaktor oder ein Piezoaktormodul
DE102010008467A1 (de) 2010-02-18 2011-08-18 Continental Automotive GmbH, 30165 Hochdruck-Kraftstoff-Einspritzventil für einen Verbrennungsmotor
DE102010038451A1 (de) 2010-07-27 2012-02-02 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102010040874A1 (de) 2010-09-16 2012-03-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102010043360A1 (de) * 2010-11-04 2012-05-10 Robert Bosch Gmbh Kraftstoffinjektor
DE102010063540A1 (de) 2010-12-20 2012-06-21 Robert Bosch Gmbh Brennstoffeinspitzventil
DE102010064039A1 (de) 2010-12-23 2012-06-28 Robert Bosch Gmbh Brennstoffeinspritzventil
CN102602142B (zh) 2011-01-18 2016-03-02 精工爱普生株式会社 液体喷射装置
DE102011002955A1 (de) 2011-01-21 2012-07-26 Robert Bosch Gmbh Brennstoffeinspritzventil
WO2013045688A1 (fr) 2011-10-01 2013-04-04 Robert Bosch Gmbh Soupape d'injection comportant un actionneur à bain d'huile et transmission hydraulique simplifiée
EP2602475A1 (fr) 2011-10-18 2013-06-12 Robert Bosch Gmbh Soupape d'injection avec un nouveau groupe de transmission
DE102013206383A1 (de) * 2013-04-11 2014-10-16 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
JP6365350B2 (ja) * 2015-03-04 2018-08-01 株式会社デンソー 燃料噴射弁
US10781777B2 (en) 2017-08-23 2020-09-22 Caterpillar Inc. Fuel injector including valve seat plate having stress-limiting groove
US11591995B2 (en) 2020-09-15 2023-02-28 Caterpillar Inc. Fuel injector having valve seat orifice plate with valve seat and drain and re-pressurization orifices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5779149A (en) * 1996-07-02 1998-07-14 Siemens Automotive Corporation Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke
DE19936668A1 (de) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Common-Rail-Injektor
DE10037388A1 (de) * 2000-08-01 2002-02-21 Bosch Gmbh Robert Ventilanordnung, insbesondere für ein Kraftstoffeinspritzsystem einer Verbrennungsmaschine
DE10111783B4 (de) * 2001-03-12 2005-10-20 Bosch Gmbh Robert Einspritzdüse
DE10158337C1 (de) * 2001-11-28 2003-05-22 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung, insbesondere Injektor für Brennkraftmaschinen mit Direkteinspritzung, sowie Kraftstoffsystem und Brennkraftmaschine
DE10158588C1 (de) * 2001-11-29 2003-05-22 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung, Kraftstoffsystem sowie Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BRPI0416579A (pt) 2007-01-30
EP1692393A1 (fr) 2006-08-23
DE10353169A1 (de) 2005-06-16
WO2005050003A1 (fr) 2005-06-02
US20070170286A1 (en) 2007-07-26
CN1878949A (zh) 2006-12-13
DE502004004465D1 (de) 2007-09-06
ATE368177T1 (de) 2007-08-15
KR20060120105A (ko) 2006-11-24
JP2007510849A (ja) 2007-04-26

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