MX143980A - IMPROVEMENTS TO APPARATUS THAT USES A PLURALITY OF PIEZOELECTRIC DISCS - Google Patents

IMPROVEMENTS TO APPARATUS THAT USES A PLURALITY OF PIEZOELECTRIC DISCS

Info

Publication number
MX143980A
MX143980A MX161009A MX16100975A MX143980A MX 143980 A MX143980 A MX 143980A MX 161009 A MX161009 A MX 161009A MX 16100975 A MX16100975 A MX 16100975A MX 143980 A MX143980 A MX 143980A
Authority
MX
Mexico
Prior art keywords
piezoelectric
dielectric
stack
dielectric medium
oct
Prior art date
Application number
MX161009A
Other languages
Spanish (es)
Inventor
Cormac Garrett O'neill
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 MX143980A publication Critical patent/MX143980A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • 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 with non-rectangular cross-section orthogonal to the stacking direction, e.g. polygonal, circular
    • 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
    • H10N30/883—Further insulation means against electrical, physical or chemical damage, e.g. protective coatings

Abstract

1525248 Piezoelectric motor devices PHYSICS INTERNATIONAL CO 2 Oct 1975 [3 Oct 1974] 40433/75 Heading H2A [Also in Division F1] In apparatus wherein a piezoelectric element stack 10-18 is surrounded and contacted by a dielectric medium, and wherein a voltage is applied to the stack to generate a motor force, the dielectric medium is pressurized to ensure that the maximum particle velocity of the dielectric medium is greater than the particle velocity of the piezoelectric material; cavitation between the dielectric and piezoelectric materials is therefore prevented and are-over between the materials consequently avoided. The dielectric may be either in fluid or solid form. In the arrangement shown the stack 10-18 moves a diaphragm 22 to pump fluid from a pipe 33 to a pipe 35.
MX161009A 1974-10-03 1975-10-01 IMPROVEMENTS TO APPARATUS THAT USES A PLURALITY OF PIEZOELECTRIC DISCS MX143980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51178774A 1974-10-03 1974-10-03

Publications (1)

Publication Number Publication Date
MX143980A true MX143980A (en) 1981-08-17

Family

ID=24036448

Family Applications (1)

Application Number Title Priority Date Filing Date
MX161009A MX143980A (en) 1974-10-03 1975-10-01 IMPROVEMENTS TO APPARATUS THAT USES A PLURALITY OF PIEZOELECTRIC DISCS

Country Status (10)

Country Link
JP (1) JPS5510153B2 (en)
AU (1) AU506789B2 (en)
BR (1) BR7506398A (en)
CA (1) CA1057846A (en)
ES (1) ES441496A1 (en)
FR (1) FR2287111A1 (en)
GB (1) GB1525248A (en)
IT (1) IT1043080B (en)
MX (1) MX143980A (en)
SE (1) SE405661B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105502A (en) * 1981-12-08 1983-07-01 Philips Nv METHOD FOR MANUFACTURING A PIEZO ELECTRICAL DEVICE AND A DEVICE MANUFACTURED BY THIS METHOD
DE3378393D1 (en) * 1982-05-11 1988-12-08 Nec Corp Multilayer electrostrictive element which withstands repeated application of pulses
US4803393A (en) * 1986-07-31 1989-02-07 Toyota Jidosha Kabushiki Kaisha Piezoelectric actuator
JPH01144690A (en) * 1987-11-30 1989-06-06 Ohkura Electric Co Ltd Laminated piezoelectric actuator
JPH02250678A (en) * 1989-03-23 1990-10-08 Tokin Corp Laminated piezoelectric actuator
DE10121270A1 (en) 2001-04-30 2003-02-06 Epcos Ag Passivation material for an electrical component as well as piezoelectric component in multilayer construction
EP2079113B1 (en) * 2008-01-09 2013-03-13 Delphi Technologies Holding S.à.r.l. Gas pressurised encapsulation for an actuator

Also Published As

Publication number Publication date
AU506789B2 (en) 1980-01-24
ES441496A1 (en) 1977-08-01
BR7506398A (en) 1976-08-10
DE2544140B2 (en) 1977-03-10
CA1057846A (en) 1979-07-03
SE405661B (en) 1978-12-18
JPS5185390A (en) 1976-07-26
IT1043080B (en) 1980-02-20
FR2287111A1 (en) 1976-04-30
JPS5510153B2 (en) 1980-03-14
SE7511059L (en) 1976-04-05
DE2544140A1 (en) 1976-04-08
FR2287111B1 (en) 1979-04-06
GB1525248A (en) 1978-09-20
AU8534475A (en) 1977-04-07

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