EP1567764B1 - Dispositif d'injection de carburant pourvu d'une soupape d'une soupape de distribution a trois voies pour moduler le processus d'injection - Google Patents

Dispositif d'injection de carburant pourvu d'une soupape d'une soupape de distribution a trois voies pour moduler le processus d'injection Download PDF

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Publication number
EP1567764B1
EP1567764B1 EP03740044A EP03740044A EP1567764B1 EP 1567764 B1 EP1567764 B1 EP 1567764B1 EP 03740044 A EP03740044 A EP 03740044A EP 03740044 A EP03740044 A EP 03740044A EP 1567764 B1 EP1567764 B1 EP 1567764B1
Authority
EP
European Patent Office
Prior art keywords
valve
pressure side
low
throttle
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03740044A
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German (de)
English (en)
Other versions
EP1567764A1 (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 EP1567764A1 publication Critical patent/EP1567764A1/fr
Application granted granted Critical
Publication of EP1567764B1 publication Critical patent/EP1567764B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—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
    • 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
    • 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
    • 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
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0056—Throttling valves, e.g. having variable opening positions throttling the flow

Definitions

  • the invention relates to a fuel injection device according to the preamble of claim 1.
  • the nozzle needle of a fuel injection valve is opened depending on the pressure prevailing in a control chamber pressure or closed.
  • the permanently connected to the high pressure side control chamber can be connected by means of a designed as a double seat valve 2/2-way control valve with the low pressure side and thereby relieved of pressure.
  • injection molding is not possible.
  • document EP 1 164 283 A discloses an internal combustion engine fuel injector having a control valve disposed between high and low pressure sides that opens or blocks the communication of a control space to the low pressure side, the control valve having a first valve position in which the connection of the control space to the low pressure side is blocked, a second valve position in which the control chamber is connected to the low-pressure side via a first outlet channel and a second outlet channel having an outlet throttle, and a third valve position, in which the control chamber is connected to the low-pressure side only via the second outlet channel, and wherein the two drain channels exclusively via the control room are connected to the high pressure side.
  • the fuel injection device according to the invention with the characterizing features of claim 1 has the advantage that the pressure prevailing in the control chamber pressure is reduced by activating or deactivating the outlet throttle at different rates and therefore a Einspritzverlaufsformung can be performed.
  • fuel injection device 1 is commonly used in an internal combustion engine having a plurality of cylinders, wherein each of these cylinders is associated with a fuel injection valve (injector).
  • injector has in known manner a protruding into a cylinder combustion chamber of the internal combustion engine, not shown here injector and the injector depending on the pressure in a control chamber 2 opening and closing, here indicated only to a small extent nozzle needle 3.
  • the control chamber 2 is permanently connected to a high-pressure inlet line (high-pressure side) 5 via an inlet throttle 4.
  • a 3/3-way control valve 6 is provided in the form of a double-seat valve, which opens or blocks the connection of the control chamber 2 with a low-pressure discharge line (low-pressure side) 7.
  • the high-pressure feed line 5 may be connected to a high-pressure accumulator (common rail), not shown, and the low-pressure drain line 7 with leak oil.
  • a discharge throttle 8 is arranged in the low-pressure drain line 7.
  • the control valve 6 has a valve body formed as a valve ball 9, which is axially adjustable in a valve chamber 10 between two coaxial annular valve seats 11, 12 by means of a piezoelectric actuator 13, for example.
  • the in Fig. 1 lower valve seat 11 is provided between a first flow channel 14 of the control chamber 2 and the valve chamber 9 and the upper valve seat 12 between the valve chamber 9 and low-pressure drain line 7.
  • the valve chamber 9 is connected via a flow restrictor 15 having a second outlet channel 16 permanently connected to the control chamber 2, wherein the high-pressure side outlet throttle 15 has a higher throttle resistance, such as a smaller throttle opening, as the low-pressure side discharge throttle 8.
  • the valve body 9 can be moved to an upper, middle or lower valve position.
  • valve opening of the upper valve seat 12 is closed by the valve body 9 and the valve opening of the lower valve seat 11 is opened, so that the connection of the control chamber 2 is closed to the low pressure side.
  • the pressure prevailing in the control chamber 2 high pressure acts on a force acting in the closing direction of the nozzle needle 3 control surface 17 of the nozzle needle 3, so that the nozzle needle 3 and the fuel injection valve are closed.
  • valve body 9 In the in Fig. 2 shown middle valve position, the valve body 9 is located between the two valve seats 11, 12, so that the valve openings of the two valve seats 11, 12 are opened.
  • the control chamber 2 is connected via both flow channels 14, 16 with the low-pressure drain line 7, so that the pressure prevailing in the control chamber 2 pressure is lowered and the nozzle needle 3 and the fuel injection valve open. Because of the outlet throttle 15, the pressure reduction from the control chamber 2 into the valve chamber 10 takes place mainly via the first relief channel 14, so that the pressure reduction rate is primarily determined by the low-pressure side outlet throttle 8.
  • Fig. 4 From the fuel injection device of Fig. 1 is different in the Fig. 4 shown variant, not part of the invention, characterized in that the first drain channel 14 is connected via a further inlet throttle 18 directly to the supply line 5. In the lower and middle valve position of the valve body 9, this inlet throttle 18 acts as a bypass.
  • the inlet throttle 18 acts in series to the high-pressure side outlet throttle 15, which can be very finely tuned to the two inlet throttles 4, 18.
  • the inlet throttle 18 since the pressure in the first discharge channel 14 is reduced more slowly, causes an additional closing force in the direction of the first valve position, so that the control valve 6 closes faster.

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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)

Abstract

Dispositif (1) d'injection de carburant (1) pour moteurs à combustion interne pourvu d'une soupape de commande (6), située entre un côté à haute pression (5) et un côté à basse pression (7), qui ouvre ou ferme la liaison entre une chambre de commande (2) et le côté à basse pression (7), ainsi que d'un conduit d'étranglement (8) situé entre la soupape de commande (6) et le côté à basse pression (7). Selon la présente invention, la soupape de commande (6) possède une première position dans laquelle la liaison entre la chambre de commande (2) et le côté à basse pression (7) est fermée, une deuxième position dans laquelle la chambre de commande (2) est reliée au côté à basse pression (7) via un premier conduit d'évacuation (14), et une troisième position dans laquelle la chambre de commande (2) est reliée au côté à basse pression (7) via un second conduit d'évacuation (16) possédant un second conduit d'étranglement (15).

Claims (4)

  1. Dispositif d'injection de carburant (1) pour moteurs à combustion interne, comprenant une soupape de commande (6) disposée entre un côté haute pression et un côté basse pression (5, 7), qui ouvre ou bloque la connexion d'un espace de commande (2) avec le côté basse pression (7), la soupape de commande (6) présentant une première position de soupape dans laquelle la connexion de l'espace de commande (2) avec le côté basse pression (7) est bloquée, une deuxième position de soupape dans laquelle l'espace de commande (2) est connecté au côté basse pression (7) par le biais d'un premier conduit d'écoulement (14) et d'un deuxième conduit d'écoulement (16) présentant un étranglement d'écoulement (15), et une troisième position de soupape dans laquelle l'espace de commande (2) est connecté au côté basse pression (7) uniquement par le biais du deuxième conduit d'écoulement (16), et les deux conduits d'écoulement (14, 16) étant connectés exclusivement par le biais de l'espace de commande (2) au côté haute pression (5),
    caractérisé en ce
    qu'un étranglement d'écoulement du côté basse pression (8) est disposé entre la soupape de commande (6) et le côté basse pression (7) et en ce que l'étranglement d'écoulement (15) du deuxième conduit d'écoulement (16) a une plus grande résistance d'étranglement que l'étranglement d'écoulement (8) du côté basse pression.
  2. Dispositif d'injection de carburant selon la revendication 1, caractérisé en ce que la soupape de commande (6) est réalisée sous forme de soupape à double siège avec un corps de soupape (9) déplaçable axialement dans une chambre de soupape (10) entre deux sièges de soupape (11, 12), un siège de soupape (11) étant connecté au premier conduit d'écoulement (14), l'autre siège de soupape (12) au côté basse pression (7) et la chambre de soupape (10) étant connectée au deuxième conduit d'écoulement (16).
  3. Dispositif d'injection de carburant selon la revendication 1 ou 2, caractérisé en ce que l'espace de commande (2) est raccordé au côté haute pression (5) par le biais d'un étranglement d'amenée (4), qui a une plus petite résistance d'étranglement que l'étranglement d'écoulement (15) du deuxième conduit d'écoulement (16).
  4. Dispositif d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de soupape (9) de la soupape de commande (6) peut être réglé au moyen d'un actionneur piézoélectrique (13).
EP03740044A 2002-11-23 2003-05-30 Dispositif d'injection de carburant pourvu d'une soupape d'une soupape de distribution a trois voies pour moduler le processus d'injection Expired - Lifetime EP1567764B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10254749A DE10254749A1 (de) 2002-11-23 2002-11-23 Kraftstoffeinspritzvorrichtung mit einem 3/3-Wege-Steuerventil zur Einspritzverlaufsformung
DE10254749 2002-11-23
PCT/DE2003/001763 WO2004048769A1 (fr) 2002-11-23 2003-05-30 Dispositif d'injection de carburant pourvu d'une soupape d'une soupape de distribution a trois voies pour moduler le processus d'injection

Publications (2)

Publication Number Publication Date
EP1567764A1 EP1567764A1 (fr) 2005-08-31
EP1567764B1 true EP1567764B1 (fr) 2011-11-09

Family

ID=32318646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740044A Expired - Lifetime EP1567764B1 (fr) 2002-11-23 2003-05-30 Dispositif d'injection de carburant pourvu d'une soupape d'une soupape de distribution a trois voies pour moduler le processus d'injection

Country Status (5)

Country Link
US (1) US7347385B2 (fr)
EP (1) EP1567764B1 (fr)
JP (1) JP2006507442A (fr)
DE (1) DE10254749A1 (fr)
WO (1) WO2004048769A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432415C (zh) * 2004-07-06 2008-11-12 株式会社电装 共轨喷油器
DE102004055263A1 (de) * 2004-11-17 2006-05-18 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
DE102005059437A1 (de) * 2005-12-13 2007-06-14 Robert Bosch Gmbh Kraftstoffinjektor
JP4855946B2 (ja) * 2006-06-08 2012-01-18 株式会社デンソー 燃料噴射弁
DE102006027330A1 (de) * 2006-06-13 2007-12-20 Robert Bosch Gmbh Kraftstoffinjektor
DE102007012706A1 (de) * 2007-03-16 2008-09-18 Robert Bosch Gmbh Ventil für Kraftstoffinjektoren
DE102007034318A1 (de) * 2007-07-24 2009-01-29 Robert Bosch Gmbh Injektor
DE102007042466B3 (de) * 2007-09-06 2009-04-09 Continental Automotive Gmbh Einspritzsystem mit reduzierter Schaltleckage und Verfahren zum Herstellen eines Einspritzsystems
JP5051279B2 (ja) * 2009-12-21 2012-10-17 株式会社デンソー 定残圧弁

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680651A (en) * 1953-06-16 1954-06-08 American Locomotive Co Fuel injector
US3065915A (en) * 1959-01-08 1962-11-27 Samann Julius Container for volatile substances
US3685734A (en) * 1971-02-19 1972-08-22 Minnesota Mining & Mfg Controlled fragrance release device
US4220281A (en) * 1979-01-17 1980-09-02 S. C. Johnson & Son, Inc. Vapor-dispensing device
US4419396A (en) * 1982-08-18 1983-12-06 Terutaka Sugimoto Three-dimensional perfumed seal
US4720409A (en) * 1986-11-20 1988-01-19 Donald Spector Film-laminate type air freshener
US4824707A (en) * 1988-06-27 1989-04-25 Donald Spector Decorative air freshener unit
US4874129A (en) * 1988-06-30 1989-10-17 Dow Corning Corporation Multi-laminate fragrance release device
US5669355A (en) * 1994-07-29 1997-09-23 Caterpillar Inc. Hydraulically-actuated fuel injector with direct control needle valve
US5857620A (en) * 1997-07-14 1999-01-12 The Scott Fetzer Company Liquid dispenser with integral wick/emanator assembly
US6328952B1 (en) * 1999-05-14 2001-12-11 Scientific Mfg. Co., Inc. Air freshener device
JP3557996B2 (ja) * 1999-06-21 2004-08-25 トヨタ自動車株式会社 燃料噴射装置
DE19946828C1 (de) * 1999-09-30 2001-07-12 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE10024702A1 (de) * 2000-05-18 2001-11-22 Bosch Gmbh Robert Einspritzanordnung für ein Kraftstoff-Speichereinspritzsystem einer Verbrennungsmaschine
JP3551898B2 (ja) * 2000-06-15 2004-08-11 トヨタ自動車株式会社 燃料噴射弁
DE10031583A1 (de) * 2000-06-29 2002-01-17 Bosch Gmbh Robert Hochdruckfester Injektor mit kugelförmigem Ventilelement
DE10039215A1 (de) * 2000-08-11 2002-02-28 Bosch Gmbh Robert Sitzventilanordnung, insbesondere für ein Kraftstoffeinspritzsystem einer Verbrennungsmaschine
DE10060836C1 (de) * 2000-12-07 2002-07-25 Bosch Gmbh Robert Druckgesteuerter CR Injektor mit gestuftem Öffnungs- und Schließverhalten
US6749130B2 (en) * 2000-12-08 2004-06-15 Caterpillar Inc Check line valve faster venting method
DE10101797A1 (de) * 2001-01-17 2002-07-18 Bosch Gmbh Robert Einspritzventil
DE10111783B4 (de) * 2001-03-12 2005-10-20 Bosch Gmbh Robert Einspritzdüse
JP3527215B2 (ja) * 2001-04-26 2004-05-17 株式会社日本自動車部品総合研究所 燃料噴射弁
JP3556921B2 (ja) * 2001-04-27 2004-08-25 株式会社日本自動車部品総合研究所 燃料噴射弁
DE10131640A1 (de) * 2001-06-29 2003-01-16 Bosch Gmbh Robert Kraftstoffinjektor mit Einspritzverlaufsformung durch schaltbare Drosselelemente
DE10132501A1 (de) * 2001-07-05 2002-10-17 Bosch Gmbh Robert Kraftstoffinjektor mit einem hubabhängig veränderlichen Drosselelement
DE10141221B4 (de) * 2001-08-23 2009-07-30 Robert Bosch Gmbh Druck-Hub-gesteuerter Injektor für Kraftstoffeinspritzsysteme
US6749129B2 (en) * 2002-07-31 2004-06-15 Caterpillar Inc Directly controlled fuel injector with sealing against fluid mixing

Also Published As

Publication number Publication date
US7347385B2 (en) 2008-03-25
US20060043210A1 (en) 2006-03-02
JP2006507442A (ja) 2006-03-02
WO2004048769A1 (fr) 2004-06-10
EP1567764A1 (fr) 2005-08-31
DE10254749A1 (de) 2004-06-17

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