EP0947690A3 - Fluid control valve - Google Patents

Fluid control valve Download PDF

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Publication number
EP0947690A3
EP0947690A3 EP98123744A EP98123744A EP0947690A3 EP 0947690 A3 EP0947690 A3 EP 0947690A3 EP 98123744 A EP98123744 A EP 98123744A EP 98123744 A EP98123744 A EP 98123744A EP 0947690 A3 EP0947690 A3 EP 0947690A3
Authority
EP
European Patent Office
Prior art keywords
translator
pressure chamber
pressure
pistons
membranes
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.)
Granted
Application number
EP98123744A
Other languages
German (de)
French (fr)
Other versions
EP0947690A2 (en
EP0947690B1 (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 EP0947690A2 publication Critical patent/EP0947690A2/en
Publication of EP0947690A3 publication Critical patent/EP0947690A3/en
Application granted granted Critical
Publication of EP0947690B1 publication Critical patent/EP0947690B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

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)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

Es wird ein Ventil zum Steuern von Flüssigkeiten vorgeschlagen, das zu seiner Betätigung mit einem hydraulischen Übersetzer (25) zusammenarbeitet. Ein im Übersetzer (25) vorgesehener Druckraum (26) wird von zwei Kolben (28 und 29) und zwei diesen nachgeschalteten Membranen (34 und 35) abgedichtet. Zum Ausgleich von durch Druckeinwirkung auf den Übersetzer (25) entstehenden Flüssigkeitsverlusten in dem Druckraum (26) sind hinter den Kolben (28 und 29) vor den Membranen (34 und 35) Steuerräume (32 und 33) gebildet, die über je eine Drosselbohrung (36 bzw. 37) an eine Leckölbohrung (40) angeschlossen sind. Die Drosselbohrungen (36 und 37) haben in Entlastungsrichtung für den Steuerraum (32 bzw. 33) einen scharfkantigen und in Füllrichtung für den Steuerraum (32 bzw. 33) einen gerundeten Übergang, wodurch ständig ein Mindestdruck zur Wiederbefüllung des Druckraumes (26) zur Verfügung steht.A valve for controlling liquids is proposed to operate it with a hydraulic Translator (25) works together. One in translator (25) The pressure chamber (26) is provided by two pistons (28 and 29) and two membranes (34 and 35) connected downstream of these. To compensate for the pressure Translator (25) resulting fluid loss in the Pressure chamber (26) are behind the pistons (28 and 29) in front of the Membranes (34 and 35) formed control rooms (32 and 33) via a throttle bore (36 or 37) to a drain hole (40) are connected. The throttle bores (36 and 37) have in the direction of relief for the control room (32 or 33) a sharp-edged and in the filling direction for the control room (32 or 33) a rounded transition, which causes constant a minimum pressure for refilling the pressure chamber (26) is available.

Das Ventil ist zur Anwendung bei Kraftstoffeinspritzeinrichtungen für Brennkraftmaschinen von Kraftfahrzeugen bestimmt.

Figure 00000001
The valve is intended for use in fuel injection devices for internal combustion engines of motor vehicles.
Figure 00000001
EP98123744A 1998-03-28 1998-12-14 Fluid control valve Expired - Lifetime EP0947690B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813983A DE19813983A1 (en) 1998-03-28 1998-03-28 Valve for controlling liquids
DE19813983 1998-03-28

Publications (3)

Publication Number Publication Date
EP0947690A2 EP0947690A2 (en) 1999-10-06
EP0947690A3 true EP0947690A3 (en) 2002-06-12
EP0947690B1 EP0947690B1 (en) 2003-10-01

Family

ID=7862828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123744A Expired - Lifetime EP0947690B1 (en) 1998-03-28 1998-12-14 Fluid control valve

Country Status (4)

Country Link
US (1) US6089529A (en)
EP (1) EP0947690B1 (en)
JP (1) JP2000046220A (en)
DE (2) DE19813983A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743669A1 (en) * 1997-10-02 1999-04-08 Bosch Gmbh Robert Fuel injection valve for motor vehicle IC engine
DE19951964A1 (en) 1999-10-28 2001-05-03 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
DE19954288A1 (en) 1999-11-11 2001-05-17 Bosch Gmbh Robert Fuel injection valve for fitting to internal combustion engines has an injection valve element to control injection openings, a control valve to affect movement in injection valve elements and a valve element for regulating pressure
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
DE10007175B9 (en) * 2000-02-17 2004-11-04 Siemens Ag Injection valve for injecting fuel into an internal combustion engine
DE10006785A1 (en) * 2000-02-18 2001-09-27 Bosch Gmbh Robert Injector, control valve and method for injecting fluid
DE10023952A1 (en) * 2000-05-16 2001-11-29 Bosch Gmbh Robert Valve for controlling liquids
DE10024702A1 (en) * 2000-05-18 2001-11-22 Bosch Gmbh Robert Fuel injector for storage injection system includes bypass channel injecting into outlet path at valve chamber
DE10029297A1 (en) * 2000-06-14 2001-10-18 Bosch Gmbh Robert Valve for controling liquids has piezo actuator, dual piston hydraulic converter, valve closure element and spring element directly coupled to second piston of hydraulic converter
DE10030232A1 (en) * 2000-06-20 2002-01-17 Siemens Ag Device for transmitting a movement with play compensation
DE10037388A1 (en) * 2000-08-01 2002-02-21 Bosch Gmbh Robert Valve arrangement, in particular for a fuel injection system of an internal combustion engine
DE10107222C1 (en) * 2001-02-16 2002-08-29 Bosch Gmbh Robert Device for controlling liquids
DE10230089A1 (en) * 2002-07-04 2004-01-15 Robert Bosch Gmbh Fuel injector
DE102017202310A1 (en) * 2017-02-14 2018-08-16 Robert Bosch Gmbh Throttle element and low-pressure circuit of a fuel injection system with a throttle element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858439A (en) * 1987-03-03 1989-08-22 Toyota Jidosha Kabushiki Kaisha Device for varying a stroke
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
WO1994019598A1 (en) * 1993-02-26 1994-09-01 Siemens Aktiengesellschaft Device for opening and closing a through-hole in a housing
DE19519192C1 (en) * 1995-05-24 1996-06-05 Siemens Ag Injector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107265A (en) * 1985-11-02 1987-05-18 Nippon Soken Inc Electrostriction type oil pressure control valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858439A (en) * 1987-03-03 1989-08-22 Toyota Jidosha Kabushiki Kaisha Device for varying a stroke
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
WO1994019598A1 (en) * 1993-02-26 1994-09-01 Siemens Aktiengesellschaft Device for opening and closing a through-hole in a housing
DE19519192C1 (en) * 1995-05-24 1996-06-05 Siemens Ag Injector

Also Published As

Publication number Publication date
JP2000046220A (en) 2000-02-18
EP0947690A2 (en) 1999-10-06
DE19813983A1 (en) 1999-09-30
DE59809801D1 (en) 2003-11-06
US6089529A (en) 2000-07-18
EP0947690B1 (en) 2003-10-01

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