IT1310126B1 - Attuatore piezoelettrico per l'iniezione di carburante - Google Patents

Attuatore piezoelettrico per l'iniezione di carburante

Info

Publication number
IT1310126B1
IT1310126B1 ITTO990642A IT1310126B1 IT 1310126 B1 IT1310126 B1 IT 1310126B1 IT TO990642 A ITTO990642 A IT TO990642A IT 1310126 B1 IT1310126 B1 IT 1310126B1
Authority
IT
Italy
Prior art keywords
fuel injection
piezoelectric actuator
piezoelectric
actuator
fuel
Prior art date
Application number
Other languages
English (en)
Inventor
Francesco Butera
Stefano Alacqua
Original Assignee
Fiat Ricerche
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 Fiat Ricerche filed Critical Fiat Ricerche
Priority to IT1999TO000642 priority Critical patent/IT1310126B1/it
Priority to EP00115462A priority patent/EP1070844A1/en
Publication of ITTO990642A1 publication Critical patent/ITTO990642A1/it
Application granted granted Critical
Publication of IT1310126B1 publication Critical patent/IT1310126B1/it

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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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
    • F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
IT1999TO000642 1999-07-20 1999-07-20 Attuatore piezoelettrico per l'iniezione di carburante IT1310126B1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT1999TO000642 IT1310126B1 (it) 1999-07-20 1999-07-20 Attuatore piezoelettrico per l'iniezione di carburante
EP00115462A EP1070844A1 (en) 1999-07-20 2000-07-18 Injector for internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1999TO000642 IT1310126B1 (it) 1999-07-20 1999-07-20 Attuatore piezoelettrico per l'iniezione di carburante

Publications (2)

Publication Number Publication Date
ITTO990642A1 ITTO990642A1 (it) 2001-01-20
IT1310126B1 true IT1310126B1 (it) 2002-02-11

Family

ID=11417983

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1999TO000642 IT1310126B1 (it) 1999-07-20 1999-07-20 Attuatore piezoelettrico per l'iniezione di carburante

Country Status (2)

Country Link
EP (1) EP1070844A1 (it)
IT (1) IT1310126B1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836536B1 (fr) 2002-02-26 2004-05-14 Cedrat Technologies Vanne piezoelectrique
DE10216084A1 (de) * 2002-04-11 2003-10-30 Vemac Gmbh & Co Kg Vergaser für Otto-Motor mit einstellbarer Brennstoffdüse
JP5742856B2 (ja) 2011-02-07 2015-07-01 株式会社村田製作所 変位部材、駆動部材、アクチュエータ及び駆動装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE695974C (de) * 1937-06-22 1940-09-16 Auto Union A G Verfahren zum elektrischen Steuern der Duesennadel bei Einspritzventilen
US4022166A (en) * 1975-04-03 1977-05-10 Teledyne Industries, Inc. Piezoelectric fuel injector valve
JPS62157274A (ja) * 1985-12-28 1987-07-13 Aisan Ind Co Ltd 燃料噴射弁
JPH02112664A (ja) * 1989-09-20 1990-04-25 Hitachi Ltd 圧電式燃料噴射弁
JPH1082352A (ja) * 1996-09-09 1998-03-31 Hitachi Ltd 筒内燃料噴射装置

Also Published As

Publication number Publication date
ITTO990642A1 (it) 2001-01-20
EP1070844A1 (en) 2001-01-24

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