EP1241346A3 - Fluid control valve - Google Patents

Fluid control valve Download PDF

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Publication number
EP1241346A3
EP1241346A3 EP02003421A EP02003421A EP1241346A3 EP 1241346 A3 EP1241346 A3 EP 1241346A3 EP 02003421 A EP02003421 A EP 02003421A EP 02003421 A EP02003421 A EP 02003421A EP 1241346 A3 EP1241346 A3 EP 1241346A3
Authority
EP
European Patent Office
Prior art keywords
fluid
filling
piston
control valve
hydraulic
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Withdrawn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
EP02003421A
Other languages
German (de)
French (fr)
Other versions
EP1241346A2 (en
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 EP1241346A2 publication Critical patent/EP1241346A2/en
Publication of EP1241346A3 publication Critical patent/EP1241346A3/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
    • 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
    • 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
    • F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. for compensating clearance or thermal expansion

Landscapes

  • 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)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

Die vorliegende Erfindung betrifft ein Ventil (1) zum Steuern von Flüssigkeiten mit einem Piezoaktor (2) und einem hydraulischen Übersetzer (3). Der hydraulische Übersetzer (3) besteht aus einem ersten Kolben (4), einem zweiten Kolben (5) und einem zwischen den beiden Kolben angeordneten, mit Fluid gefüllten Druckraum (6). Weiter ist ein Steuerventil (15) und eine Befüllvorrichtung (11, 12) zum Ersetzen des durch Leckage bedingten Fluidverlusts im Druckraum (6) vorgesehen. Die Befüllvorrichtung weist einen mit Fluid gefüllten Befüllraum (11) auf und Leckverluste im Druckraum (6) werden bei einer Rückstellbewegung des hydraulischen Übersetzers (3) aufgrund einer durch den ersten Kolben (4) mittelbar oder unmittelbar erzeugten Verdrängungswirkung im Befüllraum (11) durch Fluid aus dem Befüllraum (11) ersetzt.

Figure 00000001
The invention relates to a valve (1) for controlling liquids with a piezo actuator (2) and a hydraulic booster (3). The hydraulic intensifier (3) consists of a first piston (4), a second piston (5) and a pressure chamber (6), which is arranged between the two pistons and is filled with fluid. A control valve (15) and a filling device (11, 12) are also provided to replace the fluid loss in the pressure chamber (6) caused by leakage. The filling device has a filling space (11) filled with fluid and leakage losses in the pressure space (6) are caused by fluid during a return movement of the hydraulic translator (3) due to a displacement effect in the filling space (11), generated directly or indirectly by the first piston (4) from the filling chamber (11) replaced.
Figure 00000001
EP02003421A 2001-03-14 2002-02-14 Fluid control valve Withdrawn EP1241346A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10112147 2001-03-14
DE10112147A DE10112147A1 (en) 2001-03-14 2001-03-14 Valve for controlling liquids

Publications (2)

Publication Number Publication Date
EP1241346A2 EP1241346A2 (en) 2002-09-18
EP1241346A3 true EP1241346A3 (en) 2004-02-04

Family

ID=7677355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02003421A Withdrawn EP1241346A3 (en) 2001-03-14 2002-02-14 Fluid control valve

Country Status (4)

Country Link
US (1) US6805302B2 (en)
EP (1) EP1241346A3 (en)
JP (1) JP2002322959A (en)
DE (1) DE10112147A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10322672A1 (en) * 2003-05-20 2004-12-09 Robert Bosch Gmbh Valve for controlling liquids
DE102004027824A1 (en) * 2004-06-08 2006-01-05 Robert Bosch Gmbh Fuel injector with variable actuator ratio
DE602004002686T8 (en) * 2004-06-30 2008-01-03 C.R.F. Società Consortile per Azioni, Orbassano Fuel injector with force balanced control valve
JP4325589B2 (en) 2004-07-06 2009-09-02 株式会社デンソー Common rail injector
DE102005015997A1 (en) * 2004-12-23 2006-07-13 Robert Bosch Gmbh Fuel injector with direct control of the injection valve member
DE102005024710A1 (en) * 2005-05-30 2006-12-07 Robert Bosch Gmbh Fuel injector
DE102005059169A1 (en) * 2005-12-12 2007-06-14 Robert Bosch Gmbh Fuel injector with directly actuatable injection valve member
US8074625B2 (en) * 2008-01-07 2011-12-13 Mcalister Technologies, Llc Fuel injector actuator assemblies and associated methods of use and manufacture
US7658179B2 (en) * 2008-05-28 2010-02-09 Caterpillar Inc. Fluid leak limiter
US7661410B1 (en) 2008-08-18 2010-02-16 Caterpillar Inc. Fluid leak limiter
US8528519B2 (en) 2010-10-27 2013-09-10 Mcalister Technologies, Llc Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture
US20140131466A1 (en) 2012-11-12 2014-05-15 Advanced Green Innovations, LLC Hydraulic displacement amplifiers for fuel injectors
US9309846B2 (en) 2012-11-12 2016-04-12 Mcalister Technologies, Llc Motion modifiers for fuel injection systems
US9803555B2 (en) * 2014-04-23 2017-10-31 General Electric Company Fuel delivery system with moveably attached fuel tube
DE102014220883B4 (en) * 2014-10-15 2016-09-22 Continental Automotive Gmbh Piezo Common Rail Injector with hydraulic backlash integrated into the servo valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477400A1 (en) * 1990-09-25 1992-04-01 Siemens Aktiengesellschaft Device for compensating the tolerance in the lift direction of the displacement transformer of a piezoelectric actuator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817320C1 (en) * 1998-04-18 1999-11-11 Daimler Chrysler Ag Injector for fuel injection systems
DE19946831C1 (en) * 1999-09-30 2001-07-12 Bosch Gmbh Robert Valve for controlling liquids
DE10002270C1 (en) * 2000-01-20 2001-06-28 Bosch Gmbh Robert Valve for controlling liquids has electronic control unit that defines piezoelectric valve element actuating unit drive voltage depending on leakage loss in low pressure region
DE10019764B4 (en) * 2000-04-20 2004-09-23 Robert Bosch Gmbh Length measuring device for measuring dimensions of bodies, particularly inner- and outer diameters, used in mechanical drive- and transmission elements and in circular body, has carrier element, which is adapted to body to be measured

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477400A1 (en) * 1990-09-25 1992-04-01 Siemens Aktiengesellschaft Device for compensating the tolerance in the lift direction of the displacement transformer of a piezoelectric actuator

Also Published As

Publication number Publication date
JP2002322959A (en) 2002-11-08
DE10112147A1 (en) 2002-09-19
US20020162900A1 (en) 2002-11-07
EP1241346A2 (en) 2002-09-18
US6805302B2 (en) 2004-10-19

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