SE342073B - - Google Patents

Info

Publication number
SE342073B
SE342073B SE12973/68A SE1297368A SE342073B SE 342073 B SE342073 B SE 342073B SE 12973/68 A SE12973/68 A SE 12973/68A SE 1297368 A SE1297368 A SE 1297368A SE 342073 B SE342073 B SE 342073B
Authority
SE
Sweden
Prior art keywords
module
plunger
electroexpansive
plungers
diaphragms
Prior art date
Application number
SE12973/68A
Inventor
G Benson
Original Assignee
Physics Int Co
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 Physics Int Co filed Critical Physics Int Co
Publication of SE342073B publication Critical patent/SE342073B/xx

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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H02N2/04—Constructional details
    • H02N2/043—Mechanical transmission means, e.g. for stroke amplification
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
    • H10N30/503—Piezoelectric or electrostrictive devices having a stacked or multilayer structure having a non-rectangular cross-section in a plane orthogonal to the stacking direction, e.g. polygonal or circular in top view
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/88—Mounts; Supports; Enclosures; Casings

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)
  • Reciprocating Pumps (AREA)
  • Multiple-Way Valves (AREA)

Abstract

An electromechanical transducer having an active module of electroexpansive material, such as piezoelectric material. A chamber filled with noncompressible fluid that is bounded by first and second plungers or diaphragms, the first plunger being operatively connected to the module. The area of the second plunger is established at a size smaller than the first plunger so as to provide for motion amplification of the relatively small mechanical displacement of the electroexpansive module. An improved electroexpansive module and a method for making the same are also disclosed.
SE12973/68A 1967-09-27 1968-09-26 SE342073B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US671065A US3501099A (en) 1967-09-27 1967-09-27 Electromechanical actuator having an active element of electroexpansive material

Publications (1)

Publication Number Publication Date
SE342073B true SE342073B (en) 1972-01-24

Family

ID=24693012

Family Applications (1)

Application Number Title Priority Date Filing Date
SE12973/68A SE342073B (en) 1967-09-27 1968-09-26

Country Status (5)

Country Link
US (2) US3501099A (en)
DE (1) DE1776142C2 (en)
FR (1) FR1582379A (en)
GB (1) GB1240286A (en)
SE (1) SE342073B (en)

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ES2046401T3 (en) * 1988-08-25 1994-02-01 Hydraulik-Ring Antriebs- Und Steuerungstechnik Gmbh DEVICE TO CONTINUOUSLY INFLUENCE A FLUID CURRENT, ESPECIALLY IN A VALVE.
US5163209A (en) * 1989-04-26 1992-11-17 Hitachi, Ltd. Method of manufacturing a stack-type piezoelectric element
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US5148077A (en) * 1990-09-28 1992-09-15 Caterpillar Inc. Coating surrounding a piezoelectric solid state motor stack
US5055734A (en) * 1990-09-28 1991-10-08 Caterpillar Inc. Single-piece multiple electrode conductor
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US5117790A (en) * 1991-02-19 1992-06-02 Caterpillar Inc. Engine operation using fully flexible valve and injection events
US5205152A (en) * 1991-02-19 1993-04-27 Caterpillar Inc. Engine operation and testing using fully flexible valve and injection events
US5155409A (en) * 1991-07-11 1992-10-13 Caterpillar Inc. Integral conductor for a piezoelectric actuator
US5168189A (en) * 1991-09-18 1992-12-01 Caterpillar Inc. Solderless connector for a solid state motor stack
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US7506825B2 (en) * 2006-05-31 2009-03-24 Caterpillar Inc. Fuel injector control system
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US20130343918A1 (en) * 2011-03-10 2013-12-26 Michael L. Fripp Hydraulic pump with solid-state actuator
CN103953415B (en) * 2014-04-08 2016-07-06 天津大学 Piezoelectric type stepless variable valve mechanism based on inverse piezoelectric effect
US11161125B2 (en) * 2015-06-22 2021-11-02 Agency For Science, Technology And Research Fluid jet dispenser using multilayer ceramic actuators

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Also Published As

Publication number Publication date
DE1776142C2 (en) 1983-05-26
US3635016A (en) 1972-01-18
US3501099A (en) 1970-03-17
DE1776142A1 (en) 1971-07-01
FR1582379A (en) 1969-09-26
GB1240286A (en) 1971-07-21

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