EP0191179A1 - Thermo-acoustic device - Google Patents

Thermo-acoustic device Download PDF

Info

Publication number
EP0191179A1
EP0191179A1 EP85115760A EP85115760A EP0191179A1 EP 0191179 A1 EP0191179 A1 EP 0191179A1 EP 85115760 A EP85115760 A EP 85115760A EP 85115760 A EP85115760 A EP 85115760A EP 0191179 A1 EP0191179 A1 EP 0191179A1
Authority
EP
European Patent Office
Prior art keywords
rod
elements
thermoacoustic device
vibration
supported
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.)
Granted
Application number
EP85115760A
Other languages
German (de)
French (fr)
Other versions
EP0191179B1 (en
Inventor
Ulrich A. Dr. Müller
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0191179A1 publication Critical patent/EP0191179A1/en
Application granted granted Critical
Publication of EP0191179B1 publication Critical patent/EP0191179B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/057—Regenerators
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
    • F02G2243/50—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders having resonance tubes
    • F02G2243/54—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders having resonance tubes thermo-acoustic
    • 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 
    • F25B2309/1416—Pulse-tube cycles characterised by regenerator stack 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 
    • F25B2309/1417—Pulse-tube cycles without any valves in gas supply and return lines

Definitions

  • the invention relates to a thermoacoustic device with a built-in vibration space.
  • this known device has the disadvantage of a relatively low efficiency. According to theoretical considerations and calculations, this is due to the fact that the partitions serving as internals are essentially flat or non-curved.
  • the object of the invention is to design the above-mentioned thermoacoustic device in such a way that the efficiency is significantly improved.
  • the measure is that rod-like elements are provided as internals.
  • the rod-like elements can have a convexly curved surface.
  • the efficiency and / or the power density can be increased further by this rod structure.
  • Wires can be provided as rod-like elements. This allows a particularly large number of internals to be accommodated in the vibration room.
  • the rod-like elements can be arranged in a bulge in the vibration space. This results in a particularly low flow resistance.
  • the rod-like elements can be fastened directly in the wall of the vibration chamber. This results in a particularly simple attachment.
  • the rod-like elements can also be arranged in a constriction of the vibration space and can be fastened to holding bodies which are supported in bulges of the vibration space. This has the advantage that entire bundles of rods can be easily installed in the vibration chamber.
  • the rod-like elements can also be fastened in at least one perforated base. This can further reduce the volume of the internals.
  • the rod-like elements can be expanded be supported. This results in simple assembly of the rod-like elements.
  • the perforated bottom can be designed like a net.
  • the flow resistance can also be reduced here.
  • a piston 12 which is moved up and down in a cylinder 10 (FIG. 1) serving as a vibration chamber is connected via a piston rod 14 to a crank mechanism (not shown).
  • the middle part of the cylinder has a bulge 16 with a flow body 18.
  • Rod-like elements 22 are provided in the annular space 20 and are fastened directly in the container wall 24, for example by welding.
  • the flow body 18 is on by means of rungs 26 the container wall 24 supported.
  • a heat source 28 is provided in the upper part of the cylinder and a heat sink 30 is provided in the lower part.
  • the cylinder 10 has a constriction 32.
  • two holding bodies 34, 36 which are supported in bulges 17, serve to fasten the rod-like elements 22.
  • the convexly curved surface of the rod-like elements 22 is designated by 23 in FIG. 4a. The operation corresponds to the example in FIG. 1.
  • the rod-like elements 22 are supported at the bottom on a net-like base 38 and fastened at the top to a perforated base 40 according to FIG. 7.
  • the rod-like elements have extensions 42 at both ends. 8 rivet head-like extensions 44 can also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Eine thermoakustische Vorrichtung mit einem Einbauten aufweisenden Schwingungsraum (10). Als Einbauten sind stabartige Elemente (22) vorgesehen.A thermoacoustic device with a built-in vibration chamber (10). Rod-like elements (22) are provided as internals.

Description

Thermoakustische VorrichtungThermoacoustic device

Die Erfindung betrifft eine thermoakustische Vorrichtung mit einem Einbauten aufweisenden Schwingungsraum.The invention relates to a thermoacoustic device with a built-in vibration space.

Eine solche Vorrichtung ist z.B. in der Dissertation von Ulrich A. Müller, "Thermoakustische Gasschwingungen: Definition und Optimierung eines Wirkungsgrades", Diss. ETH Nr. 7014, 1982, Seiten 171 bis 173 offenbart. Dabei dienen als Einbauten Zwischenwände, durch welche Kanäle oder Taschen gebildet werden.Such a device is e.g. in the dissertation by Ulrich A. Müller, "Thermoacoustic Gas Vibrations: Definition and Optimization of an Efficiency", Diss. ETH No. 7014, 1982, pages 171 to 173. Partitions, through which channels or pockets are formed, serve as internals.

Diese bekannte Vorrichtung weist jedoch den Nachteil eines verhältnismässig geringen Wirkungsgrades auf. Gemäss theoretischen Ueberlegungen und Berechnungen ist dies darauf zurückzuführen, dass die als Einbauten dienenden Zwischenwände im wesentlichen flach bzw. ungekrümmt sind.However, this known device has the disadvantage of a relatively low efficiency. According to theoretical considerations and calculations, this is due to the fact that the partitions serving as internals are essentially flat or non-curved.

Aufgabe der Erfindung ist es, die eingangs genannte thermoakustische Vorrichtung so zu gestalten, dass der Wirkungsgrad wesentlich verbessert wird.The object of the invention is to design the above-mentioned thermoacoustic device in such a way that the efficiency is significantly improved.

Zur Lösung dieser Aufgabe dient die Massnahme, dass als Einbauten stabartige Elemente vorgesehen sind.To solve this problem, the measure is that rod-like elements are provided as internals.

Hierdurch lässt sich durch entsprechende Krümmung der Oberfläche der Einbauten eine entsprechende Erhöhung des Wirkungsgrades erzielen.In this way, a corresponding increase in efficiency can be achieved by appropriate curvature of the surface of the internals.

Nach einer besonders vorteilhaften Ausführung der Erfindung können die stabartigen Elemente eine konvex gekrümmte Oberfläche aufweisen. Durch diese Stabstruktur kann der Wirkungsgrad und/oder die Leistungsdichte weiter erhöht werden.According to a particularly advantageous embodiment of the invention, the rod-like elements can have a convexly curved surface. The efficiency and / or the power density can be increased further by this rod structure.

Als stabartige Elemente können Drähte vorgesehen sein. Hierdurch kann eine besonders grosse Zahl von Einbauten im Schwingungsraum untergebracht werden.Wires can be provided as rod-like elements. This allows a particularly large number of internals to be accommodated in the vibration room.

Die stabartigen Elemente können in einer Ausbuchtung des Schwingungsraums angeordnet sein. Hierdurch wird ein besonders geringer Strömungswiderstand erreicht.The rod-like elements can be arranged in a bulge in the vibration space. This results in a particularly low flow resistance.

Dabei können die stabartigen Elemente direkt in der Wand des Schwingungsraums befestigt sein. Dies ergibt eine besonders einfache Befestigung.The rod-like elements can be fastened directly in the wall of the vibration chamber. This results in a particularly simple attachment.

Die stabartigen Elemente können auch in einer Einschnürung des Schwingungsraums angeordnet sein und an in Ausbuchtungen des Schwingungsraums abgestützten Haltekörpern befestigt sein. Dies hat den Vorteil, dass ganze Stabbündel auf einfache Weise im Schwingungsraum montiert werden können.The rod-like elements can also be arranged in a constriction of the vibration space and can be fastened to holding bodies which are supported in bulges of the vibration space. This has the advantage that entire bundles of rods can be easily installed in the vibration chamber.

Die stabartigen Elemente können auch in wenigstens einem perforierten Boden befestigt sein. Hierdurch lässt sich das Volumen der Einbauten zusätzlich reduzieren.The rod-like elements can also be fastened in at least one perforated base. This can further reduce the volume of the internals.

Dabei können die stabartigen Elemente durch Erweiterungen abgestützt sein. Dies ergibt eine einfache Montage der stabartigen Elemente.The rod-like elements can be expanded be supported. This results in simple assembly of the rod-like elements.

Schliesslich kann der perforierte Boden netzartig ausgebildet sein. Hierbei lässt sich der Strömungswiderstand zusätzlich verringern.Finally, the perforated bottom can be designed like a net. The flow resistance can also be reduced here.

Die nähere Erläuterung der Erfindung erfolgt anhand von Ausführungsbeispielen in Verbindung mit nachfolgender Zeichnung. Es zeigen:

  • Fig. 1 eine erste Ausführungsform der Erfindung im Längsschnitt,
  • Fig. 2 den Schnitt nach Linie II-II gemäss Fig. l,
  • Fig. 3 eine zweite Ausführungsform der Erfindung,
  • Fig. 4, 4a den Schnitt nach Linie IV-IV gemäss Fig. 3, wobei Fig. 4a eine Detailvergrösserung darstellt,
  • Fig. 5 eine dritte Ausführungsform der Erfindung,
  • Fig. 6, 6a den Schnitt nach Linie VI-VI gemäss Fig. 5, wobei Fig. 6a eine Detailvergrösserung darstellt, und
  • Fig. 7, 8 Ausführungsbeispiele für die Befestigung der stabartigen Elemente.
The invention is explained in more detail using exemplary embodiments in conjunction with the following drawing. Show it:
  • 1 shows a first embodiment of the invention in longitudinal section,
  • 2 shows the section along line II-II according to FIG. 1,
  • 3 shows a second embodiment of the invention,
  • 4, 4a the section along line IV-IV according to FIG. 3, FIG. 4a showing an enlarged detail,
  • 5 shows a third embodiment of the invention,
  • 6, 6a the section along line VI-VI according to FIG. 5, FIG. 6a showing an enlarged detail, and
  • 7, 8 embodiments for the attachment of the rod-like elements.

Ein in einem als Schwingungsraum dienenden Zylinder 10 (Fig. l) auf- und abbewegter Kolben 12 ist über eine Kolbenstange 14 mit einem nicht dargestellten Kurbeltrieb verbunden. Der mittlere Teil des Zylinders weist eine Ausbuchtung 16 mit einem Strömungskörper 18 auf. Im Ringraum 20 sind stabartige Elemente 22 vorgesehen, welche direkt in der Behälterwand 24 z.B. durch Schweissen befestigt sind. Der Strömungskörper 18 ist mittels Sprossen 26 an der Behälterwand 24 abgestützt. Im oberen Teil des Zylinders ist eine Wärmequelle 28 und im unteren Teil eine Wärmesenke 30 vorgesehen. Beim Betrieb werden thermoakustische Schwingungen im Zylinder 10 angefacht, wobei der Kolben 12 in eine oszillierende Bewegung versetzt wird.A piston 12 which is moved up and down in a cylinder 10 (FIG. 1) serving as a vibration chamber is connected via a piston rod 14 to a crank mechanism (not shown). The middle part of the cylinder has a bulge 16 with a flow body 18. Rod-like elements 22 are provided in the annular space 20 and are fastened directly in the container wall 24, for example by welding. The flow body 18 is on by means of rungs 26 the container wall 24 supported. A heat source 28 is provided in the upper part of the cylinder and a heat sink 30 is provided in the lower part. During operation, thermoacoustic vibrations are fanned in the cylinder 10, the piston 12 being set into an oscillating movement.

Beim Ausführungsbeispiel nach Fig. 3 weist der Zylinder 10 eine Einschnürung 32 auf. Zur Befestigung der stabartigen Elemente 22 dienen in diesem Falle zwei Haltkörper 34, 36, welche in Ausbuchtungen 17 abgestützt sind. Die konvex gekrümmte Oberfläche der stabartigen Elemente 22 ist in Fig. 4a mit 23 bezeichnet. Der Betrieb entspricht dem Beispiel nach Fig. 1.3, the cylinder 10 has a constriction 32. In this case, two holding bodies 34, 36, which are supported in bulges 17, serve to fasten the rod-like elements 22. The convexly curved surface of the rod-like elements 22 is designated by 23 in FIG. 4a. The operation corresponds to the example in FIG. 1.

Beim Ausführungsbeispiel nach Fig. 5 sind die stabartigen Elemente 22 unten an einem netzartigen Boden 38 abgestützt und oben an einem Lochboden 40 nach Fig. 7 befestigt. Die stabartigen Elemente weisen an beiden Enden Erweiterungen 42 auf. Nach Fig. 8 können auch nietkopfartige Erweiterungen 44 vorgesehen sein.In the exemplary embodiment according to FIG. 5, the rod-like elements 22 are supported at the bottom on a net-like base 38 and fastened at the top to a perforated base 40 according to FIG. 7. The rod-like elements have extensions 42 at both ends. 8 rivet head-like extensions 44 can also be provided.

Claims (9)

1. Thermoakustische Vorrichtung mit einem Einbauten aufweisenden Schwingungsraum, dem eine Wärmequelle und eine Wärmesenke zugeordnet ist, dadurch gekennzeichnet , dass als Einbauten stabartige Elemente (22) vorgesehen sind.1. Thermoacoustic device with a built-in vibration space, which is associated with a heat source and a heat sink, characterized in that rod-like elements (22) are provided as internals. 2. Thermoakustische Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die stabartigen Elemente (22) eine konvex gekrümmte Oberfläche (23) aufweisen.2. Thermoacoustic device according to claim 1, characterized in that the rod-like elements (22) have a convexly curved surface (23). 3. Thermoakustische Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass als stabartige Elemente (22) Drähte vorgesehen sind.3. Thermoacoustic device according to claim 1, characterized in that wires are provided as rod-like elements (22). 4. Thermoakustische Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die stabartigen Elemente (22) in einer Ausbuchtung (16) des Schwingungsraums (10, 11) angeordnet sind.4. Thermoacoustic device according to claim 1, characterized in that the rod-like elements (22) are arranged in a bulge (16) of the vibration chamber (10, 11). 5. Thermoakustische Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die stabartigen Elemente (22) in der Wand (24) des Schwingungsraums (10) befestigt sind.5. Thermoacoustic device according to claim 4, characterized in that the rod-like elements (22) in the wall (24) of the vibration chamber (10) are attached. 6. Thermoakustische Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die stabartigen Elemente (22) in einer Einschnürung (32) des Schwingungsraums (10) angeordnet sind und an in Ausbuchtungen (17) des Schwingungsraums (10) abgestützten Haltekörpern (34, 36) befestigt sind.6. A thermoacoustic device according to claim 1, characterized in that the rod-like elements (22) are arranged in a constriction (32) of the vibration space (10) and on holding bodies (34, 36) supported in bulges (17) of the vibration space (10). are attached. 7. Thermoakustische Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die stabartigen Elemente (22) in wenigstens einem perforierten Boden (40) befestigt sind.7. Thermoacoustic device according to claim 1, characterized in that the rod-like elements (22) are fastened in at least one perforated base (40). 8. Thermoakustische Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die stabartigen Elemente (22) durch Erweiterungen (42, 44) an wenigstens einem Ende im perforierten Boden (40) abgestützt sind.8. Thermoacoustic device according to claim 7, characterized in that the rod-like elements (22) are supported by extensions (42, 44) on at least one end in the perforated base (40). 9. Thermoakustische Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der perforierte Boden (38) netzartig ausgebildet ist.9. Thermoacoustic device according to claim 7, characterized in that the perforated bottom (38) is formed like a net.
EP85115760A 1985-01-22 1985-12-11 Thermo-acoustic device Expired EP0191179B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH269/85 1985-01-22
CH269/85A CH667517A5 (en) 1985-01-22 1985-01-22 THERMOACOUSTIC DEVICE.

Publications (2)

Publication Number Publication Date
EP0191179A1 true EP0191179A1 (en) 1986-08-20
EP0191179B1 EP0191179B1 (en) 1989-04-26

Family

ID=4183153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115760A Expired EP0191179B1 (en) 1985-01-22 1985-12-11 Thermo-acoustic device

Country Status (4)

Country Link
US (1) US4625517A (en)
EP (1) EP0191179B1 (en)
CH (1) CH667517A5 (en)
DE (1) DE3569818D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0267727A2 (en) * 1986-11-06 1988-05-18 The Haser Company Limited Gas resonance device
CN103670977A (en) * 2013-12-11 2014-03-26 中国科学院理化技术研究所 Double-acting thermo-acoustic power generation system using liquid oxygen combustion

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303555A (en) * 1992-10-29 1994-04-19 International Business Machines Corp. Electronics package with improved thermal management by thermoacoustic heat pumping
US5349813A (en) * 1992-11-09 1994-09-27 Foster Wheeler Energy Corporation Vibration of systems comprised of hot and cold components
US5412950A (en) * 1993-07-27 1995-05-09 Hu; Zhimin Energy recovery system
US5456082A (en) * 1994-06-16 1995-10-10 The Regents Of The University Of California Pin stack array for thermoacoustic energy conversion
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
US6089026A (en) * 1999-03-26 2000-07-18 Hu; Zhimin Gaseous wave refrigeration device with flow regulator
RU2292455C2 (en) * 2001-11-26 2007-01-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Method for producing electric energy by thermo-acoustic means
US6755027B2 (en) * 2002-04-10 2004-06-29 The Penn State Research Foundation Cylindrical spring with integral dynamic gas seal
US6725670B2 (en) * 2002-04-10 2004-04-27 The Penn State Research Foundation Thermoacoustic device
US6792764B2 (en) * 2002-04-10 2004-09-21 The Penn State Research Foundation Compliant enclosure for thermoacoustic device
US7263837B2 (en) 2003-03-25 2007-09-04 Utah State University Thermoacoustic cooling device
DE102008017998B4 (en) * 2008-04-09 2010-07-01 Siemens Aktiengesellschaft Method and device for increasing the energy efficiency of a power plant
DE102008018000B4 (en) * 2008-04-09 2010-04-01 Siemens Aktiengesellschaft Process and apparatus for CO2 liquefaction
JP2011099599A (en) * 2009-11-05 2011-05-19 Aisin Seiki Co Ltd Heat transport pipe
WO2014028845A1 (en) 2012-08-16 2014-02-20 The Penn State Research Foundation Thermoacoustic enhancements for nuclear fuel-rods and other high temperature applications
CN103485931A (en) * 2013-09-21 2014-01-01 冯智勇 Thermoacoustic driven stirling engine
JPWO2020045675A1 (en) * 2018-08-31 2020-09-03 京セラ株式会社 Thermoacoustic device
WO2021152798A1 (en) * 2020-01-30 2021-08-05 京セラ株式会社 Thermoacoustic device
JPWO2021084868A1 (en) * 2019-11-01 2021-05-06

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1548158A (en) * 1923-06-13 1925-08-04 Thomas E Murray Heat exchanger
FR955736A (en) * 1950-01-19
DE804147C (en) * 1944-11-03 1951-04-16 Philips Nv Regenerator filling compound consisting of one or more pieces of wire
CH284894A (en) * 1948-12-24 1952-08-15 Philips Nv Gas engine.
DE1005673B (en) * 1955-06-11 1957-04-04 Rudolf Hingst Dipl Ing Regenerative heat exchanger made of rows of iron rods for arrangement in a channel through which the means to be heated and the means that emit heat alternately flow through
US2836033A (en) * 1953-07-15 1958-05-27 Bell Telephone Labor Inc Heat-controlled acoustic wave system
US3548589A (en) * 1968-01-19 1970-12-22 Atomic Energy Authority Uk Heat engines
DE2259623A1 (en) * 1971-12-09 1973-06-14 Atomic Energy Authority Uk STIRLING CYCLE THERMAL POWER MACHINE
US4114380A (en) * 1977-03-03 1978-09-19 Peter Hutson Ceperley Traveling wave heat engine
US4296147A (en) * 1979-05-21 1981-10-20 William Nicholas Lawless Thallous halide materials for use in cryogenic applications
GB2105022A (en) * 1981-08-14 1983-03-16 Us Energy Acoustical heat pump
FR2536788A2 (en) * 1981-08-14 1984-06-01 Us Energy INTRINSICALLY IRREVERSIBLE HEAT ENGINE
EP0130143A1 (en) * 1983-06-20 1985-01-02 GebràœDer Sulzer Aktiengesellschaft Refrigeration machine or heat pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339635A (en) * 1965-10-22 1967-09-05 Clarence W Brandon Method and apparatus for forming and/or augmenting an energy wave
US4355517A (en) * 1980-11-04 1982-10-26 Ceperley Peter H Resonant travelling wave heat engine
US4489553A (en) * 1981-08-14 1984-12-25 The United States Of America As Represented By The United States Department Of Energy Intrinsically irreversible heat engine

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR955736A (en) * 1950-01-19
US1548158A (en) * 1923-06-13 1925-08-04 Thomas E Murray Heat exchanger
DE804147C (en) * 1944-11-03 1951-04-16 Philips Nv Regenerator filling compound consisting of one or more pieces of wire
CH284894A (en) * 1948-12-24 1952-08-15 Philips Nv Gas engine.
US2836033A (en) * 1953-07-15 1958-05-27 Bell Telephone Labor Inc Heat-controlled acoustic wave system
DE1005673B (en) * 1955-06-11 1957-04-04 Rudolf Hingst Dipl Ing Regenerative heat exchanger made of rows of iron rods for arrangement in a channel through which the means to be heated and the means that emit heat alternately flow through
US3548589A (en) * 1968-01-19 1970-12-22 Atomic Energy Authority Uk Heat engines
DE2259623A1 (en) * 1971-12-09 1973-06-14 Atomic Energy Authority Uk STIRLING CYCLE THERMAL POWER MACHINE
US4114380A (en) * 1977-03-03 1978-09-19 Peter Hutson Ceperley Traveling wave heat engine
US4296147A (en) * 1979-05-21 1981-10-20 William Nicholas Lawless Thallous halide materials for use in cryogenic applications
GB2105022A (en) * 1981-08-14 1983-03-16 Us Energy Acoustical heat pump
FR2536788A2 (en) * 1981-08-14 1984-06-01 Us Energy INTRINSICALLY IRREVERSIBLE HEAT ENGINE
EP0130143A1 (en) * 1983-06-20 1985-01-02 GebràœDer Sulzer Aktiengesellschaft Refrigeration machine or heat pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0267727A2 (en) * 1986-11-06 1988-05-18 The Haser Company Limited Gas resonance device
EP0267727A3 (en) * 1986-11-06 1989-08-30 Alan Arthur Wells Gas resonance device
CN103670977A (en) * 2013-12-11 2014-03-26 中国科学院理化技术研究所 Double-acting thermo-acoustic power generation system using liquid oxygen combustion
CN103670977B (en) * 2013-12-11 2015-12-02 中国科学院理化技术研究所 A kind of double acting heat and acoustic power generating system utilizing liquid oxygen to burn

Also Published As

Publication number Publication date
DE3569818D1 (en) 1989-06-01
EP0191179B1 (en) 1989-04-26
CH667517A5 (en) 1988-10-14
US4625517A (en) 1986-12-02

Similar Documents

Publication Publication Date Title
EP0191179A1 (en) Thermo-acoustic device
EP0963721A1 (en) Height adjustable armrests, particularly for office-chairs
EP0040675A2 (en) Self-pumping levelling device for vehicles, particularly for motor vehicles
EP0078929B1 (en) Spring mattress using cross-supports and elastic connecting elements
EP0004392A2 (en) Supporting device for a turbine and a condenser
DE4206122A1 (en) Crosshead and piston rod for two stroke piston engine
DE2407136B2 (en) Directional control valve with locking device to determine the switching positions of its control piston
DE3517223A1 (en) BRACKET FOR THE MOTOR / COMPRESSOR UNIT OF A HERMETIC COMPRESSOR
DE2825372C2 (en)
DE2105879B2 (en) Hydro-pneumatic vehicle suspension unit
DE2244506C3 (en) Shower head
EP0995373A1 (en) Device for assembling multi-function chairs in a row
DE2926868A1 (en) TUNING DEVICE FOR A MICROWAVE TUBE
DE211232C (en)
DE1480059C (en) Rotary latches for fastening tarpaulins, in particular to motor vehicles or canvas ceilings
DE130590C (en)
AT220979B (en) Door closer
DE168364C (en)
DE1231383B (en) Lock casing for circular knitting machines
CH266459A (en) Device with at least one linearly reciprocating body and an engine, which two parts are connected to one another by means of a rod.
AT258857B (en) Valve bottom for mass transfer columns
DE451016C (en) Wind chest with removable metal valve housings for pneumatic musical instruments
DE64586C (en) Shaft made of steel wire double strands
DE807813C (en) Device for separating at least one component from a liquid mixture by distillation
DE3911571A1 (en) TOP DRIVE OF A EXCAVATOR WITH A CENTRAL FRAME

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR IT NL SE

17P Request for examination filed

Effective date: 19870131

17Q First examination report despatched

Effective date: 19871012

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT NL SE

REF Corresponds to:

Ref document number: 3569818

Country of ref document: DE

Date of ref document: 19890601

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19911030

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19911209

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19911231

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920131

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19921212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85115760.2

Effective date: 19930709