EP0191179A1 - Thermo-acoustic device - Google Patents
Thermo-acoustic device Download PDFInfo
- 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
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
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.
- 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
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
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-
Claims (9)
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)
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)
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 |
DE60212690D1 (en) * | 2001-11-26 | 2006-08-03 | Shell Int Research | THERMOACUSTIC ELECTRICITY GENERATION |
US6725670B2 (en) * | 2002-04-10 | 2004-04-27 | The Penn State Research Foundation | Thermoacoustic device |
US6755027B2 (en) * | 2002-04-10 | 2004-06-29 | The Penn State Research Foundation | Cylindrical spring with integral dynamic gas seal |
US6792764B2 (en) * | 2002-04-10 | 2004-09-21 | The Penn State Research Foundation | Compliant enclosure for thermoacoustic device |
WO2004088218A1 (en) | 2003-03-25 | 2004-10-14 | Utah State University | Thermoacoustic cooling device |
DE102008018000B4 (en) * | 2008-04-09 | 2010-04-01 | Siemens Aktiengesellschaft | Process and apparatus for CO2 liquefaction |
DE102008017998B4 (en) * | 2008-04-09 | 2010-07-01 | Siemens Aktiengesellschaft | Method and device for increasing the energy efficiency of a power plant |
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 |
WO2021084868A1 (en) * | 2019-11-01 | 2021-05-06 | 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 |
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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 | GebràDer Sulzer Aktiengesellschaft | Refrigeration machine or heat pump |
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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 |
-
1985
- 1985-01-22 CH CH269/85A patent/CH667517A5/en not_active IP Right Cessation
- 1985-12-11 DE DE8585115760T patent/DE3569818D1/en not_active Expired
- 1985-12-11 EP EP85115760A patent/EP0191179B1/en not_active Expired
-
1986
- 1986-01-10 US US06/818,089 patent/US4625517A/en not_active Expired - Fee Related
Patent Citations (13)
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 | GebràDer Sulzer Aktiengesellschaft | Refrigeration machine or heat pump |
Cited By (4)
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 |
---|---|
EP0191179B1 (en) | 1989-04-26 |
US4625517A (en) | 1986-12-02 |
CH667517A5 (en) | 1988-10-14 |
DE3569818D1 (en) | 1989-06-01 |
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