WO2003069153A1 - Liquid injection device - Google Patents

Liquid injection device Download PDF

Info

Publication number
WO2003069153A1
WO2003069153A1 PCT/JP2003/001619 JP0301619W WO03069153A1 WO 2003069153 A1 WO2003069153 A1 WO 2003069153A1 JP 0301619 W JP0301619 W JP 0301619W WO 03069153 A1 WO03069153 A1 WO 03069153A1
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnetic
injection unit
piezoelectric
control device
electric control
Prior art date
Application number
PCT/JP2003/001619
Other languages
French (fr)
Japanese (ja)
Inventor
Takao Ohnishi
Toshikazu Hirota
Yukihisa Takeuchi
Original Assignee
Ngk Insulators, Ltd.
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 Ngk Insulators, Ltd. filed Critical Ngk Insulators, Ltd.
Priority to EP20030705214 priority Critical patent/EP1482166A1/en
Priority to JP2003568245A priority patent/JPWO2003069153A1/en
Priority to AU2003211239A priority patent/AU2003211239A1/en
Publication of WO2003069153A1 publication Critical patent/WO2003069153A1/en

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
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/041—Injectors peculiar thereto having vibrating means for atomizing the fuel, e.g. with sonic or ultrasonic vibrations
    • 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
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

A liquid injection device (10) includes an injection unit (15) having a piezoelectric/electrostrictive element, an electromagnetic delivery valve (14) for delivering pressurized fuel to the injection unit, and an electric control device (30). The electric control device generates an electromagnetic valve opening/closing signal according to the engine operation state and transmits it to the electromagnetic delivery valve. Thus, pressurized liquid fuel is supplied from the electromagnetic delivery valve to the injection unit. The electric control device operates the piezoelectric/electrostrictive element when the liquid pressure in the injection unit is increase or decreased due to at least generation or stop of generation of the electromagnetic opening/closing signal, so that the injected fuel is made into fine particles. On the other hand, when the electromagnetic opening/closing signal has disappeared and the liquid pressure in the injection unit is at a low constant pressure, the piezoelectric/electrostrictive element is not operated, thereby suppressing power consumption.
PCT/JP2003/001619 2002-02-15 2003-02-17 Liquid injection device WO2003069153A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20030705214 EP1482166A1 (en) 2002-02-15 2003-02-17 Liquid injection device
JP2003568245A JPWO2003069153A1 (en) 2002-02-15 2003-02-17 Liquid ejector
AU2003211239A AU2003211239A1 (en) 2002-02-15 2003-02-17 Liquid injection device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2002038411 2002-02-15
JP2002-038411 2002-02-15
JP2002-304922 2002-10-18
JP2002304922 2002-10-18

Publications (1)

Publication Number Publication Date
WO2003069153A1 true WO2003069153A1 (en) 2003-08-21

Family

ID=27736513

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/001619 WO2003069153A1 (en) 2002-02-15 2003-02-17 Liquid injection device

Country Status (4)

Country Link
EP (1) EP1482166A1 (en)
JP (1) JPWO2003069153A1 (en)
AU (1) AU2003211239A1 (en)
WO (1) WO2003069153A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024111A1 (en) 2009-06-06 2010-12-09 Mtu Aero Engines Gmbh nozzle holder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0377665A (en) * 1989-08-17 1991-04-03 Tdk Corp Ultrasonic atomizer
JPH04134176A (en) * 1990-09-26 1992-05-08 Mazda Motor Corp Fuel injecting device for engine
EP1093857A1 (en) * 1998-07-03 2001-04-25 Ngk Insulators, Ltd. Discharging device for material and fuel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0377665A (en) * 1989-08-17 1991-04-03 Tdk Corp Ultrasonic atomizer
JPH04134176A (en) * 1990-09-26 1992-05-08 Mazda Motor Corp Fuel injecting device for engine
EP1093857A1 (en) * 1998-07-03 2001-04-25 Ngk Insulators, Ltd. Discharging device for material and fuel

Also Published As

Publication number Publication date
EP1482166A1 (en) 2004-12-01
JPWO2003069153A1 (en) 2005-06-02
AU2003211239A1 (en) 2003-09-04

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