GB2270198B - A piezoelectric actuator - Google Patents

A piezoelectric actuator

Info

Publication number
GB2270198B
GB2270198B GB9317311A GB9317311A GB2270198B GB 2270198 B GB2270198 B GB 2270198B GB 9317311 A GB9317311 A GB 9317311A GB 9317311 A GB9317311 A GB 9317311A GB 2270198 B GB2270198 B GB 2270198B
Authority
GB
United Kingdom
Prior art keywords
piezoelectric elements
piezoelectric
column
elements
piezoelectric actuator
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.)
Expired - Fee Related
Application number
GB9317311A
Other versions
GB9317311D0 (en
GB2270198A (en
Inventor
Michael Brill
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and 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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of GB9317311D0 publication Critical patent/GB9317311D0/en
Publication of GB2270198A publication Critical patent/GB2270198A/en
Application granted granted Critical
Publication of GB2270198B publication Critical patent/GB2270198B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H10N30/886—Additional mechanical prestressing means, e.g. springs
    • 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

Landscapes

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

Abstract

A piezoelectric actuator 10 has piezoelectric ring shaped elements 12 which are combined by means of a fastening device 14 into a mechanically prestressed column of piezoelectric elements. The fastening device 14 has a rod element 18 which extends through the central space 16 of the column of piezoelectric elements, and which has on its two end portions 20, 22 fastening members 24 pressing against the adjacent piezoelectric elements 12. At least one of the fastening members 24 is provided with a prestressing element 28 which consists of a shape memory alloy and which upon suitable temperature change T changes shape mechanically prestressing the column of piezoelectric elements. <IMAGE>
GB9317311A 1992-08-31 1993-08-19 A piezoelectric actuator Expired - Fee Related GB2270198B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4228974A DE4228974C2 (en) 1992-08-31 1992-08-31 Piezoelectric actuator

Publications (3)

Publication Number Publication Date
GB9317311D0 GB9317311D0 (en) 1993-10-06
GB2270198A GB2270198A (en) 1994-03-02
GB2270198B true GB2270198B (en) 1996-01-24

Family

ID=6466857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9317311A Expired - Fee Related GB2270198B (en) 1992-08-31 1993-08-19 A piezoelectric actuator

Country Status (3)

Country Link
DE (1) DE4228974C2 (en)
FR (1) FR2695521B1 (en)
GB (1) GB2270198B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745664B1 (en) * 1996-02-29 1998-05-15 Figest Bv PROGRESSIVE WAVE PIEZOELECTRIC MOTOR
DE19650900A1 (en) * 1996-12-07 1998-06-10 Bosch Gmbh Robert Piezoelectric actuator
DE19928780B4 (en) * 1999-06-23 2004-12-30 Siemens Ag actuator
DE19951012A1 (en) * 1999-10-22 2001-04-26 Bosch Gmbh Robert Actuator for i.c. engine fuel injection valve has piezoelectric or magnetostrictive element provided with tensioning device fitting through its centre or around its outside
EP1160885B1 (en) * 2000-05-31 2010-08-18 Denso Corporation Piezoelectric device for injector
DE10042941A1 (en) * 2000-08-31 2002-03-21 Siemens Ag Piezo actuator and method for producing a piezo actuator
DE10358200B4 (en) 2003-12-12 2010-06-24 Eurocopter Deutschland Gmbh Rod-shaped, heavy duty, active connecting element and rotary wing aircraft with such a connecting element
FR3051255B1 (en) 2016-05-11 2018-05-11 Centre National De La Recherche Scientifique VIBRANT ACCELEROMETER PRECONTRAINT
CN107574565A (en) * 2016-07-04 2018-01-12 长春上缘科技发展有限公司 A kind of adjustable piezoelectric vibrator slide cam selector of prestressing force
CN114784178B (en) * 2022-06-22 2022-09-09 上海隐冠半导体技术有限公司 Piezoelectric actuator and moving device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0582851A (en) * 1991-09-19 1993-04-02 Nec Corp Piezoelectric actuator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598506A (en) * 1969-04-23 1971-08-10 Physics Int Co Electrostrictive actuator
DE3704742A1 (en) * 1987-02-14 1988-08-25 Daimler Benz Ag Piezoelectric control valve
US5004945A (en) * 1988-09-26 1991-04-02 Nippondenso Co., Ltd. Piezoelectric type actuator
JPH03239169A (en) * 1990-02-14 1991-10-24 Brother Ind Ltd Ultrasonic oscillator and ultrasonic motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0582851A (en) * 1991-09-19 1993-04-02 Nec Corp Piezoelectric actuator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI Accession No 93-147537/18 & JP05082851A *

Also Published As

Publication number Publication date
DE4228974A1 (en) 1994-03-03
FR2695521A1 (en) 1994-03-11
DE4228974C2 (en) 1999-04-15
GB9317311D0 (en) 1993-10-06
FR2695521B1 (en) 1996-06-14
GB2270198A (en) 1994-03-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980819