WO2000054550A3 - Haut-parleur de grande efficacite et a aimant mobile - Google Patents

Haut-parleur de grande efficacite et a aimant mobile Download PDF

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Publication number
WO2000054550A3
WO2000054550A3 PCT/US2000/006128 US0006128W WO0054550A3 WO 2000054550 A3 WO2000054550 A3 WO 2000054550A3 US 0006128 W US0006128 W US 0006128W WO 0054550 A3 WO0054550 A3 WO 0054550A3
Authority
WO
WIPO (PCT)
Prior art keywords
driver
stiffness
beams
piston
structures
Prior art date
Application number
PCT/US2000/006128
Other languages
English (en)
Other versions
WO2000054550A2 (fr
Inventor
Steven L Garrett
Robert W Smith
Robert M Keolian
Original Assignee
Penn State Res Found
Steven L Garrett
Robert W Smith
Robert M Keolian
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 Penn State Res Found, Steven L Garrett, Robert W Smith, Robert M Keolian filed Critical Penn State Res Found
Priority to PCT/US2000/006128 priority Critical patent/WO2000054550A2/fr
Priority to AU36209/00A priority patent/AU3620900A/en
Publication of WO2000054550A2 publication Critical patent/WO2000054550A2/fr
Publication of WO2000054550A3 publication Critical patent/WO2000054550A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1403—Pulse-tube cycles with heat input into acoustic driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1404—Pulse-tube cycles with loudspeaker driven acoustic driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1405—Pulse-tube cycles with travelling waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1407—Pulse-tube cycles with pulse tube having in-line geometrical arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1412—Pulse-tube cycles characterised by heat exchanger details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1416—Pulse-tube cycles characterised by regenerator stack details

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

Cette invention concerne un actionneur thermo-acoustique qui comprend un moteur électrodynamique linéaire comportant des bornes électriques et une partie mobile, un boîtier de suspension de l'actionneur, un piston et, enfin, un dispositif augmentant la rigidité permettant d'augmenter la fréquence de résonance mécanique du moteur électrodynamique sans réduire la course du piston. L'augmentation de la rigidité se fait en utilisant des structures de ressorts de suspension spécialement optimisées et/ou en associant un ou plusieurs inducteurs électriques aux bornes électriques de l'actionneur. L'augmentation de la rigidité par des ressorts mécaniques permet d'incorporer une ou plusieurs structures en étoile de mer qui s'étendent entre le boîtier de suspension de l'actionneur et le piston, et qui sont fixées rigidement aux deux. Ces structures en étoile de mer comprennent des pattes radiales qui consistent en des ressorts à lames ou en des rayons de largeurs variables. La forme des rayons ainsi que la forme de la structure de ressorts dans son ensemble sont optimisées afin d'accroître la raideur en flexion ou en torsion, et de soulager la tension en arc dans les limites de la rentabilité. Dans un mode de réalisation, deux rayons modifiés, décalés et triangulaires (trapézoïdaux) sont connectés par l'intermédiaire d'une section médiane droite et forment un rayon en forme de noeud papillon.
PCT/US2000/006128 1999-03-09 2000-03-09 Haut-parleur de grande efficacite et a aimant mobile WO2000054550A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2000/006128 WO2000054550A2 (fr) 1999-03-09 2000-03-09 Haut-parleur de grande efficacite et a aimant mobile
AU36209/00A AU3620900A (en) 1999-03-09 2000-03-09 High-efficiency moving-magnet loudspeaker

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12398499P 1999-03-09 1999-03-09
US60/123,684 1999-03-09
PCT/US2000/006128 WO2000054550A2 (fr) 1999-03-09 2000-03-09 Haut-parleur de grande efficacite et a aimant mobile

Publications (2)

Publication Number Publication Date
WO2000054550A2 WO2000054550A2 (fr) 2000-09-14
WO2000054550A3 true WO2000054550A3 (fr) 2000-12-21

Family

ID=42371952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/006128 WO2000054550A2 (fr) 1999-03-09 2000-03-09 Haut-parleur de grande efficacite et a aimant mobile

Country Status (2)

Country Link
AU (1) AU3620900A (fr)
WO (1) WO2000054550A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8295537B2 (en) 2010-03-31 2012-10-23 Bose Corporation Loudspeaker moment and torque balancing
US8295536B2 (en) 2010-03-31 2012-10-23 Bose Corporation Moving magnet levered loudspeaker
US9055370B2 (en) 2012-08-31 2015-06-09 Bose Corporation Vibration-reducing passive radiators

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858441A (en) * 1987-03-02 1989-08-22 The United States Of America As Represented By The United States Department Of Energy Heat-driven acoustic cooling engine having no moving parts
US5647216A (en) * 1995-07-31 1997-07-15 The United States Of America As Represented By The Secretary Of The Navy High-power thermoacoustic refrigerator
US5901556A (en) * 1997-11-26 1999-05-11 The United States Of America As Represented By The Secretary Of The Navy High-efficiency heat-driven acoustic cooling engine with no moving parts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858441A (en) * 1987-03-02 1989-08-22 The United States Of America As Represented By The United States Department Of Energy Heat-driven acoustic cooling engine having no moving parts
US5647216A (en) * 1995-07-31 1997-07-15 The United States Of America As Represented By The Secretary Of The Navy High-power thermoacoustic refrigerator
US5901556A (en) * 1997-11-26 1999-05-11 The United States Of America As Represented By The Secretary Of The Navy High-efficiency heat-driven acoustic cooling engine with no moving parts
US5996345A (en) * 1997-11-26 1999-12-07 The United States Of America As Represented By The Secretary Of The Navy Heat driven acoustic power source coupled to an electric generator

Also Published As

Publication number Publication date
WO2000054550A2 (fr) 2000-09-14
AU3620900A (en) 2000-09-28

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