EP1440237B1 - Ventil zum steuern von flüssigkeiten - Google Patents

Ventil zum steuern von flüssigkeiten Download PDF

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Publication number
EP1440237B1
EP1440237B1 EP02754530A EP02754530A EP1440237B1 EP 1440237 B1 EP1440237 B1 EP 1440237B1 EP 02754530 A EP02754530 A EP 02754530A EP 02754530 A EP02754530 A EP 02754530A EP 1440237 B1 EP1440237 B1 EP 1440237B1
Authority
EP
European Patent Office
Prior art keywords
valve
pressure
piston
hydraulic chamber
system region
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
EP02754530A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1440237A1 (de
Inventor
Patrick Mattes
Hans Brekle
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 EP1440237A1 publication Critical patent/EP1440237A1/de
Application granted granted Critical
Publication of EP1440237B1 publication Critical patent/EP1440237B1/de
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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • 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
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/24—Piezoelectric 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
    • 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
    • F02M2200/70—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
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Definitions

  • the invention relates to a valve for controlling fluids according to the preamble of claim 1 more defined type.
  • Such a valve is known in practice and serves in particular as a control module of a fuel injection valve, in particular a common rail injector of a motor vehicle.
  • a known valve of the aforementioned type has to Actuation of a piezoelectric actuator.
  • a deflection of the piezoelectric actuator is actuated by the Valve via a hydraulic chamber, which as a hydraulic Translation or coupling and tolerance compensation element works, transferred to a valve closing member.
  • As hydraulic coupler acting hydraulic chamber is between a connected to the piezoelectric actuator actuator piston and an actuating piston connected to the valve closing member arranged.
  • the diameter of the actuator piston is greater than that of the actuating piston, so that the Actuation piston one to the gear ratio of Piston diameter makes increased stroke when the actuator piston by means of the piezoelectric actuator a specific Deflection experiences.
  • the hydraulic chamber is designed so that during the Operating leaks occur by refilling can be compensated. For example, this works formed on the circumference of the piston leakage gaps in a system area or system space of the valve prevailing Fluid pressure, the so-called system pressure, on the hydraulic chamber.
  • the system area is subjected to the fluid pressure in such a way, that upon actuation of the valve, the valve closure member is moved into an open position and so on a fluid flow can flow into the system area.
  • the so-called Abêtmenge is, which subsequently a so-called Ab tenual is discharged from the system area.
  • the one in the system area prevailing system pressure of about 30 bar by means of a in the check channel arranged check valve dammed, so that the pressure prevailing in the system area is sufficiently large to refill the hydraulic chamber to ensure.
  • the valve according to the invention for controlling fluids with the features of the claim 1, in which the system space via the Ab tenukanal with a fluid pressure is applied, has the advantage that a Factory initial filling of the hydraulic coupler is not necessary because the filling at startup of the valve by the supply of fluid in the system area via the optionally formed as an opening of the valve housing Ab tenukanal takes place and thus always a sufficient large refill pressure in the system room or area is provided.
  • the Abêtkanal be connected to a printing device, which simultaneously represent a fuel pump of the motor vehicle can.
  • the used fuel pump one in a fuel tank arranged fuel feed pump for promotion from fuel to a high-pressure pump, which is the so-called Provides common rail pressure.
  • the pre-feed pump acts, for example, with a pressure of about 5 bar the diversion channel to the system area.
  • valve according to The invention is provided on the Abberichtkanal a throttle.
  • the throttle causes an intrusion in the system area accumulating pressure slowly to a downstream Fluid circuit is discharged.
  • accumulating pressure peaks which are up to 60 bar can be removed via the throttle.
  • a Pressure increase in the system area is by means of the throttle taken dynamically, which in turn leads to tolerable loads the piezoelectric actuator module and thus to a robust valve leads.
  • the throttle is preferably formed by a Rohrschraschraubteil.
  • a tube screw part makes a simple and robust and tolerance-insensitive component in which No adjustments are required and its space requirements is low and that is easy to produce.
  • By mere replacement of the tube screw part with a specific one Inner diameter against a Rohrschraschraubteil with a other inner diameter may be the valve according to the invention readily adapted to changing operating conditions become.
  • FIG. 1 shows part of a system for injecting Fuel in a diesel internal combustion engine of a motor vehicle shown, wherein the system is a valve 10 for Controlling fluids in a fuel injector includes.
  • the valve 10 forms a control module for not shown in detail here nozzle module of the fuel injection valve or injector.
  • the nozzle module connects to the control module in axial Direction and includes a arranged in a nozzle body and guided nozzle needle leading to a combustion chamber of the Internal combustion engine leading openings of the nozzle body controls.
  • the nozzle needle forms with a valve spool Assembly, wherein the valve spool to a so-called Valve control room is adjacent.
  • the valve control room is stationary via an inlet throttle with a high-pressure fuel channel and via an outlet throttle with a valve chamber 11 of the Valve 10 in operative connection.
  • the high-pressure fuel channel is by means of a high pressure pump 12 with under a pressure Of about 1.5 kbar standing fuel is applied, which by means of a prefeed pump 13 from a fuel tank 14 via a supply line 15 to the suction side of High pressure pump 12 is promoted.
  • the high pressure pump 12 has a pressure side 16, which to a so-called, common rail not shown here leads, over which several fuel injectors with Fuel are fed and the u.a. with the above said high-pressure fuel passage is connected.
  • the Fuel injectors are each equipped with a control module equipped in the manner of the valve 10.
  • a by means of the fuel injection valve described here exerted injection process is over the in the valve control room controlled pressure prevailing, which means of the valve or control module 10 is adjustable.
  • the valve or control module 10 comprises a valve housing 20, in which a so-called system area or system space 21 is trained.
  • a Actuator module 22 In the system room 21 is on the one hand a Actuator module 22 and on the other hand, a coupler module 23 is arranged.
  • the actuator module 22 which comprises a piezoelectric actuator and is supported on the valve housing 20 is provided with a connected to the coupler module 23 associated actuator piston 24, in a cylindrical bore 25 of a coupler housing 26 is guided axially movable.
  • adjusting piston 24 by means of a coil spring 27, which at one connected to the actuating piston 24 Support plate 28 engages and on the coupler housing 26 is supported, biased in the direction of the actuator module 22.
  • the actuating piston 24 is via a hydraulic chamber trained, hydraulic coupler 29 with a so-called Actuation piston 30 in operative connection, the for actuation a valve closure member 31 is used and with the latter is connected via a guide piston 32.
  • the actuating piston 30, which in a cylindrical bore 35 of the Coupler housing 26 is guided, is by means of a coil spring 33, which is supported on the coupler body 26 and engages on a further support plate 34, in the direction of Valve closing member 31 biased.
  • the diameter of the actuating piston 30 is smaller than that of the actuator piston 24, so that the hydraulic coupler 29 as a hydraulic Translator works.
  • the valve closing member 31 is in the valve control room arranged the nozzle module connected valve chamber 11 and by means of a plate spring 36 when not actuated piezoelectric Actuator 22 held in the closed position, so that it rests against a valve seat 37.
  • branches from the system space 21 as an opening trained Ab Kunststoffvoral 38 from, with a pipe as a screw trained throttle 39 is provided and via a line 40 with the Kraftstoffvorierpumpe 13th and the leading to the high pressure pump 12 supply line 15 is connected.
  • the throttle 39 is shown in more detail in Figures 2a and 2b and includes a terminal portion 41 for one of Line 40 associated pressure hose and a screw thread 42 for fixing to the valve housing 20 and has an inner diameter d of about 1 mm.
  • valve 10 shown in Figures 1 and 2 operates in the manner described below.
  • the system space 21 at startup of the Systems, d. H. at the start of the feed pump 13, via the from the supply line 15 branching line 40 and the Throttle 39 with fuel, so acted upon with a fluid, under the delivery pressure of the prefeed pump 13th is in the range of 3 bar to 5 bar.
  • This Pressure causes about annular leakage gaps, which the Surrounded pistons 24 and 30 in the region of the bores 25 and 35, a filling of the hydraulic coupler 29 takes place.
  • the pressure for the filling of the hydraulic coupler 29 is therefore of a present in the motor vehicle Pressure device, here the fuel priming pump, taken over.
  • the actuator module 22 with a Voltage applied so that this axial elongation experiences and the actuator piston 24 in the direction of the valve closure member 31 is deflected, which in turn a hub the actuating piston 30 and thus the valve closing member 31 is triggered.
  • the valve closing member 31 moved in the open position, creating a Abberichtmenge to fuel from the valve space 11 in the system space 21st flows.
  • the Abberichtmenge is via the opening 38 and the throttle 39 and the lines 40 and 15 of the high-pressure pump 12 provided.
  • Throttle 39 causes pressure spikes, which may be up to 60 bar, be dynamically degraded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Control Of Non-Electrical Variables (AREA)
EP02754530A 2001-10-19 2002-08-16 Ventil zum steuern von flüssigkeiten Expired - Lifetime EP1440237B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10151688 2001-10-19
DE10151688A DE10151688A1 (de) 2001-10-19 2001-10-19 Ventil zum Steuern von Flüssigkeiten
PCT/DE2002/003005 WO2003038269A1 (de) 2001-10-19 2002-08-16 Ventil zum steuern von flüssigkeiten

Publications (2)

Publication Number Publication Date
EP1440237A1 EP1440237A1 (de) 2004-07-28
EP1440237B1 true EP1440237B1 (de) 2005-11-16

Family

ID=7703072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754530A Expired - Lifetime EP1440237B1 (de) 2001-10-19 2002-08-16 Ventil zum steuern von flüssigkeiten

Country Status (6)

Country Link
US (1) US6899069B2 (ja)
EP (1) EP1440237B1 (ja)
JP (1) JP2005507053A (ja)
AT (1) ATE310162T1 (ja)
DE (2) DE10151688A1 (ja)
WO (1) WO2003038269A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001743A1 (de) 2008-05-14 2009-11-19 Robert Bosch Gmbh Kraftstoffeinspritzsystem

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326259A1 (de) 2003-06-11 2005-01-05 Robert Bosch Gmbh Injektor für Kraftstoff-Einspritzsysteme von Brennkraftmaschinen, insbesondere von direkteinspritzenden Dieselmotoren
WO2005024223A1 (de) * 2003-09-08 2005-03-17 Siemens Aktiengesellschaft Einspritzventil für die einspritzung von kraftstoff in eine verbrennungskraftmaschine
DE10352736A1 (de) * 2003-11-12 2005-07-07 Robert Bosch Gmbh Kraftstoffinjektor mit direkter Nadeleinspritzung
US7329791B2 (en) * 2004-03-31 2008-02-12 Uchicago Argonne, Llc Hydrogen transport membranes for dehydrogenation reactions
DE102004015744A1 (de) * 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor
DE102004031790A1 (de) * 2004-07-01 2006-01-26 Robert Bosch Gmbh Common-Rail-Injektor
DE102004044812A1 (de) * 2004-09-16 2006-03-23 Robert Bosch Gmbh Steuerventil einer Einspritzdüse für eine Brennkraftmaschine
DE102004062006A1 (de) 2004-12-23 2006-07-13 Robert Bosch Gmbh Kraftstoffinjektor mit direkt angesteuertem Einspritzventilglied
DE102005008466A1 (de) * 2005-02-24 2006-08-31 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102005009148A1 (de) * 2005-03-01 2006-09-07 Robert Bosch Gmbh Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied mit Doppelsitz
DE102006009659A1 (de) 2005-07-25 2007-02-01 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung
JP4609271B2 (ja) * 2005-10-12 2011-01-12 株式会社デンソー 燃料噴射弁
JP4535027B2 (ja) * 2006-06-05 2010-09-01 株式会社デンソー 燃料噴射装置およびそれに用いられる差圧弁
DE102007001363A1 (de) * 2007-01-09 2008-07-10 Robert Bosch Gmbh Injektor zum Einspritzen von Kraftstoff in Brennräume von Brennkraftmaschinen
EP1985840B1 (en) * 2007-04-23 2011-09-07 C.R.F. Società Consortile per Azioni Fuel injector with balanced metering servovalve for an internal combustion engine
JP4968037B2 (ja) * 2007-12-13 2012-07-04 株式会社デンソー 背圧制御弁およびそれを用いた低圧燃料システム
DE102008063990A1 (de) * 2008-12-19 2010-06-24 J. Eberspächer GmbH & Co. KG Fahrzeugbrenner
DE102013222506A1 (de) * 2012-12-06 2014-06-12 Robert Bosch Gmbh Verfahren und Vorrichtung zum Montieren und Befüllen eines hydraulischen Kopplermoduls
DE102013219225A1 (de) * 2013-09-25 2015-03-26 Continental Automotive Gmbh Piezo-Injektor zur Kraftstoff-Direkteinspritzung
DE102013225379A1 (de) * 2013-12-10 2015-06-11 Robert Bosch Gmbh Hydraulischer Koppler
CN105756829B (zh) * 2016-04-21 2018-01-19 哈尔滨工程大学 组合式机械喷油‑增压压电喷气混合燃料喷射装置
CN105804827A (zh) * 2016-05-04 2016-07-27 哈尔滨工程大学 压电控制增压式配气系统
CN105781658A (zh) * 2016-05-04 2016-07-20 哈尔滨工程大学 压电液压驱动式配气系统
TR201607052A2 (ja) * 2016-05-26 2016-10-21 Ali Suermen
CN113062823A (zh) * 2021-04-28 2021-07-02 一汽解放汽车有限公司 一种流量调节装置及共轨系统

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Publication number Priority date Publication date Assignee Title
WO1996037697A1 (de) * 1995-05-24 1996-11-28 Siemens Aktiengesellschaft Einspritzventil
DE19946732A1 (de) * 1999-09-29 2001-04-12 Siemens Ag Vorrichtung zum Übertragen einer Aktorauslenkung auf ein Stellglied und Kraftstoffinjektor mit einer solchen Vorrichtung

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JP2503975B2 (ja) * 1986-06-12 1996-06-05 トヨタ自動車株式会社 内燃機関の燃料噴射装置
DE4412948C2 (de) 1994-04-14 1998-07-23 Siemens Ag Elektrohydraulische Absperrvorrichtung
DE19823937B4 (de) * 1998-05-28 2004-12-23 Siemens Ag Servoventil für Kraftstoffeinspritzventil
DE19946827C1 (de) * 1999-09-30 2001-06-21 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE20106155U1 (de) * 2001-04-07 2001-06-13 FEV Motorentechnik GmbH, 52078 Aachen Common-Rail-Einspritzeinrichtung mit piezoelektrischem Aktuator

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
WO1996037697A1 (de) * 1995-05-24 1996-11-28 Siemens Aktiengesellschaft Einspritzventil
DE19946732A1 (de) * 1999-09-29 2001-04-12 Siemens Ag Vorrichtung zum Übertragen einer Aktorauslenkung auf ein Stellglied und Kraftstoffinjektor mit einer solchen Vorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001743A1 (de) 2008-05-14 2009-11-19 Robert Bosch Gmbh Kraftstoffeinspritzsystem

Also Published As

Publication number Publication date
WO2003038269A1 (de) 2003-05-08
US6899069B2 (en) 2005-05-31
ATE310162T1 (de) 2005-12-15
DE10151688A1 (de) 2003-04-30
US20040154562A1 (en) 2004-08-12
JP2005507053A (ja) 2005-03-10
EP1440237A1 (de) 2004-07-28
DE50204975D1 (de) 2005-12-22

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