EP1252426B1 - Soupape pour commander le passage de liquides - Google Patents

Soupape pour commander le passage de liquides Download PDF

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Publication number
EP1252426B1
EP1252426B1 EP01909461A EP01909461A EP1252426B1 EP 1252426 B1 EP1252426 B1 EP 1252426B1 EP 01909461 A EP01909461 A EP 01909461A EP 01909461 A EP01909461 A EP 01909461A EP 1252426 B1 EP1252426 B1 EP 1252426B1
Authority
EP
European Patent Office
Prior art keywords
valve
valve body
ball
controlling fluids
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01909461A
Other languages
German (de)
English (en)
Other versions
EP1252426A2 (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 EP1252426A2 publication Critical patent/EP1252426A2/fr
Application granted granted Critical
Publication of EP1252426B1 publication Critical patent/EP1252426B1/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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
    • 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
    • F02M63/0045—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
    • 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
    • F02M63/0059—Arrangements of valve actuators
    • F02M63/0061—Single actuator acting on two or more valve bodies
    • 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

Definitions

  • the invention relates to a valve for controlling Liquids according to the preamble of claim 1.
  • EP 0 477 400 A1 is a valve which is common today described. There is in a stepped bore of the Valve housing an actuating piston of the valve member in a part of the stepped bore with a small diameter slidably arranged. A through a piezoelectric actuator movable larger piston is in one part of the Stepped bore with a larger diameter. Between the two pistons are filled with a pressure medium formed hydraulic pressure chamber, so that a hydraulic translation of a movement of the piezoelectric actuator he follows.
  • a hydraulic actuated fuel injector with an injector housing known, which a hydraulic fluid inlet and a Needle control chamber has.
  • a hydraulic unit Inside the injector fuel passes to the injector housing under pressure too.
  • the hydraulic unit includes a Electromagnetically actuated control valve for the Hydraulic fluid and can open the hydraulic fluid inlet and shut down.
  • a needle valve element comprises a pressure of Needle control chamber exposed hydraulic closing surface.
  • an electromagnet is used Needle control valve provided which in the injector is mounted and the needle control chamber with a High pressure fluid source connects or can shut off. This allows the slow response of the Hydraulic fluid control valve direct control of fast responding needle valve by the only used fast-acting electromagnet.
  • an injector is known from Bosch, equipped with a servo 3/2-seat slide valve is.
  • valve according to the invention with the characterizing Features of claim 1 has the other hand Advantage that instead of the known 3/2-seat slide valves a 3/2-double-seat valve is used, wherein the Seats and guides do not have to run to each other. In addition, by providing the second seat a hard seal against a slider with a small stroke possible.
  • first valve body formed with a pan into which the can engage the second valve body. This will be in structurally simple form a dense interaction ensured between the two valve bodies.
  • the second valve body is in essentially formed as a ball, which in the pan of first valve body can engage sealingly.
  • the ball is preferably with a cylindrical Extension formed, which is the leadership of the second Valve body takes over.
  • Guides of cylindrical Elements are at both low and high pressures Easily achievable, and it can be on known, commercially common constructions are used.
  • the cylindrical extension of his Ball remote end portion formed with a ring.
  • Valve according to the invention for controlling fluids engages a clamping element on the ring, that the ball in the pan is pressed for a tight fit.
  • first and second valve bodies act as one Unit and can be used in a one-piece housing become.
  • leadership of the first valve body and the guide of the second valve body separated from each other, and it is not necessary that the two guides to each other.
  • FIG. 1 shows schematically a view of a Fuel injection valve according to one embodiment the invention.
  • FIG. 1 finds the valve according to the invention application in one Fuel injection system, in which the injection pump and the injection nozzle form a unit (so-called pump-nozzle unit (PDE)).
  • PDE pump-nozzle unit
  • FIG. 1 is merely based on the invention Innovation focused.
  • the injection valve 1 consists of a not shown decentralized pump unit and a not shown Control unit.
  • the control unit comprises an in a housing, not shown, not arranged shown piezoelectric actuator with a piston 2, by means of Hydraulic Translation 3 a control valve 4 drives.
  • the control valve 4 consists of a first body 5, which at its lower end in the attached figure one So-called pan 6 has. To this pan 6 closes in the attached figure, the second valve body 7 at.
  • the second valve body consists of a ball 8, which in the pan 6 tightly engages, as well as a cylindrical Extension 9.
  • the cylindrical extension 9 is hereby separate from the first Valve body 5 out and has at his in the attached figure lower end portion one on the outer circumference of the cylindrical extension 9 trained ring 10. At the ring 10 engages a spring 11 which the ring 10 and thus the second valve body 7 with the ball 8 against the Pan 6 of the first valve body 5 presses.
  • control valve 4 with a first seat 12th , and a second seat 13, with which, respectively the first valve body 5 and the second valve body 7 in Arrive plant.
  • Valve 1 In the following the operation of the invention Valve 1 described. Will not because of one shown piezoelectric actuator with energization of the piezoelectric actuator Pressure exerted on the piston 2, this pressure is of the hydraulic booster 3 according to one given gear ratio at first Transfer valve body 5.
  • first one Valve body due to the combination of spring 11 and second valve body 7 at rest or de-energized State of the valve 1 in the first seat 12 of the Control valve 4 biased. Therefore, when the of hydraulic translator 3 passed pressure the Compressive force of the spring 11 exceeds, the first and second Valve body 5, 7 in the illustration of the accompanying figure moves down to the ball 8 of the second valve body 7 comes into contact with the second valve 13. simultaneously can fuel from the inlet Z by the control valve 4 for not shown nozzle flow through the outlet A.
  • the ball 8 of the second valve body 6 maximum one stroke H when controlling the control valve. 5 or deactivation of the control valve 5 can go through.
  • the stroke is in the order of about 0.3mm dimensioned.
  • the cooperating valve body 5, 7 each have a pan 6 and a ball 8 for an adequate interaction are, of course, other coordinated ones geometric shapes as the pan 6 and the ball 8th conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Multiple-Way Valves (AREA)
  • Control Of Non-Electrical Variables (AREA)

Claims (6)

  1. Soupape de commande de liquide comprenant un organe de soupape (4) actionné par un démultiplicateur (3) commandé par la course d'un actionneur piézo-électrique,
    caractérisée en ce que
    l'organe de soupape (4) comporte une soupape à double siège sur lequel sont amenés deux corps de soupape (5, 7) séparés.
  2. Soupape de commande de liquide selon la revendication 1,
    caractérisée en ce que
    le premier corps de soupape (5) comporte un coussinet (6) dans lequel le second corps de soupape (7) peut venir en prise.
  3. Soupape de commande de liquide selon la revendication 1 ou 2,
    caractérisée en ce que
    le second corps de soupape (7) est constitué essentiellement sous la forme d'une bille (8).
  4. Soupape de commande de liquide selon la revendication 3,
    caractérisée en ce que
    la bille (8) est constituée avec un appendice cylindrique (9).
  5. Soupape de commande de liquide selon la revendication 4,
    caractérisée en ce que
    l'appendice cylindrique (9), à son extrémité éloignée de la bille, est constitué avec un anneau (10).
  6. Soupape de commande de liquide selon la revendication 5,
    caractérisée en ce qu'
    un élément de contrainte (11) agit sur l'anneau (10) de manière que la bille (8) est précontrainte dans le coussinet (6) pour assurer une prise étanche.
EP01909461A 2000-01-22 2001-01-13 Soupape pour commander le passage de liquides Expired - Lifetime EP1252426B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10002722 2000-01-22
DE10002722A DE10002722A1 (de) 2000-01-22 2000-01-22 Ventil zum Steuern von Flüssigkeiten
PCT/DE2001/000121 WO2001053681A2 (fr) 2000-01-22 2001-01-13 Soupape pour commander le passage de liquides

Publications (2)

Publication Number Publication Date
EP1252426A2 EP1252426A2 (fr) 2002-10-30
EP1252426B1 true EP1252426B1 (fr) 2005-04-06

Family

ID=7628418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01909461A Expired - Lifetime EP1252426B1 (fr) 2000-01-22 2001-01-13 Soupape pour commander le passage de liquides

Country Status (7)

Country Link
EP (1) EP1252426B1 (fr)
JP (1) JP2003532027A (fr)
AT (1) ATE292751T1 (fr)
CZ (1) CZ20022527A3 (fr)
DE (2) DE10002722A1 (fr)
HU (1) HUP0203933A2 (fr)
WO (1) WO2001053681A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10055272A1 (de) * 2000-11-08 2002-05-23 Bosch Gmbh Robert Druckgesteuerter Injektor mit in Reihe geschalteten Steuerventilen
DE102006038862A1 (de) 2006-08-18 2008-02-21 Scanwill Aps Druckübersetzer mit Doppelsitzventil
DE102009001003B4 (de) * 2009-02-19 2017-11-30 Robert Bosch Gmbh Brennstoffeinspritzventil
JP7033563B2 (ja) * 2019-06-13 2022-03-10 Ckd株式会社 切換弁

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE192263T1 (de) 1990-09-25 2000-05-15 Siemens Ag Anordnung für einen in hubrichtung wirkenden adaptiven, mechanischen toleranzausgleich für den wegtransformator eines piezoelektrischen aktors
US5738071A (en) 1991-05-22 1998-04-14 Wolff Controls Corporation Apparatus and method for sensing movement of fuel injector valve
DE29708369U1 (de) * 1997-05-09 1997-07-10 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Steuerbares Einspritzventil für die Kraftstoffeinspritzung an Brennkraftmaschinen
DE19729844A1 (de) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Kraftstoffeinspritzvorrichtung
JP2001140726A (ja) * 1998-12-09 2001-05-22 Denso Corp 弁装置およびそれを用いた燃料噴射装置
JP3557996B2 (ja) * 1999-06-21 2004-08-25 トヨタ自動車株式会社 燃料噴射装置

Also Published As

Publication number Publication date
EP1252426A2 (fr) 2002-10-30
CZ20022527A3 (cs) 2003-02-12
WO2001053681A3 (fr) 2002-02-07
JP2003532027A (ja) 2003-10-28
WO2001053681A2 (fr) 2001-07-26
ATE292751T1 (de) 2005-04-15
DE10002722A1 (de) 2001-08-02
DE50105831D1 (de) 2005-05-12
HUP0203933A2 (en) 2003-03-28

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