WO2002084754A3 - Piezoelectric micro-transducers, methods of use and manufacturing methods for same - Google Patents

Piezoelectric micro-transducers, methods of use and manufacturing methods for same Download PDF

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Publication number
WO2002084754A3
WO2002084754A3 PCT/US2001/051613 US0151613W WO02084754A3 WO 2002084754 A3 WO2002084754 A3 WO 2002084754A3 US 0151613 W US0151613 W US 0151613W WO 02084754 A3 WO02084754 A3 WO 02084754A3
Authority
WO
WIPO (PCT)
Prior art keywords
micro
energy
transducer
piezoelectric
methods
Prior art date
Application number
PCT/US2001/051613
Other languages
French (fr)
Other versions
WO2002084754A2 (en
Inventor
Robert F Richards
David F Bahr
Cecilia D Richards
Original Assignee
Univ Washington
Robert F Richards
David F Bahr
Cecilia D Richards
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 Univ Washington, Robert F Richards, David F Bahr, Cecilia D Richards filed Critical Univ Washington
Priority to EP01273887A priority Critical patent/EP1350276A2/en
Priority to AU2001297790A priority patent/AU2001297790B2/en
Priority to JP2002581596A priority patent/JP2004532743A/en
Priority to CA002426823A priority patent/CA2426823A1/en
Publication of WO2002084754A2 publication Critical patent/WO2002084754A2/en
Publication of WO2002084754A3 publication Critical patent/WO2002084754A3/en
Priority to AU2006200696A priority patent/AU2006200696A1/en

Links

Classifications

    • 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
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/34—Ultra-small engines, e.g. for driving models
    • 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
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
    • 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
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
    • H10N30/304—Beam type
    • H10N30/306—Cantilevers
    • 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
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
    • H10N30/308—Membrane type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F2013/005—Thermal joints
    • F28F2013/008—Variable conductance materials; Thermal switches

Abstract

Various micro-transducers incorporating piezoelectric materials for converting energy in one form to useful energy in another form are disclosed. In one embodiment, a piezoelectric micro-transducer can be operated either as a micro-heat engine, converting thermal energy into electrical energy, or as a micro-heat pump, consuming electrical energy to transfer thermal energy from a low-temperature heat source to a high-temperature heat sink. In another embodiment, a piezoelectric micro-transducer is used to convert the kinetic energy of an oscillating or vibrating body on which the micro-transducer is placed into useful electrical energy. A piezoelectric micro-transducer also is used to extract work from a pressurized stream of fluid. Also disclosed are a micro-internal combustion engine and a micro-heat engine based on the Rankine cycle in which a single fluid serves as a working fluid and fuel.
PCT/US2001/051613 2000-10-25 2001-10-25 Piezoelectric micro-transducers, methods of use and manufacturing methods for same WO2002084754A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP01273887A EP1350276A2 (en) 2000-10-25 2001-10-25 Piezoelectric micro-transducers, methods of use and manufacturing methods for same
AU2001297790A AU2001297790B2 (en) 2000-10-25 2001-10-25 Piezoelectric micro-transducers, methods of use and manufacturing methods for same
JP2002581596A JP2004532743A (en) 2000-10-25 2001-10-25 Piezoelectric microtransducer, its use and manufacturing
CA002426823A CA2426823A1 (en) 2000-10-25 2001-10-25 Piezoelectric micro-transducers, methods of use and manufacturing methods for same
AU2006200696A AU2006200696A1 (en) 2000-10-25 2006-02-20 Piezoelectric micro-transducers, methods of use and manufacturing methods for same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24344700P 2000-10-25 2000-10-25
US60/243,447 2000-10-25

Publications (2)

Publication Number Publication Date
WO2002084754A2 WO2002084754A2 (en) 2002-10-24
WO2002084754A3 true WO2002084754A3 (en) 2003-07-17

Family

ID=22918804

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/051613 WO2002084754A2 (en) 2000-10-25 2001-10-25 Piezoelectric micro-transducers, methods of use and manufacturing methods for same

Country Status (6)

Country Link
US (2) US7235914B2 (en)
EP (1) EP1350276A2 (en)
JP (1) JP2004532743A (en)
AU (1) AU2001297790B2 (en)
CA (1) CA2426823A1 (en)
WO (1) WO2002084754A2 (en)

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