EP0036045B1 - Pressure wave machine - Google Patents

Pressure wave machine Download PDF

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Publication number
EP0036045B1
EP0036045B1 EP80200243A EP80200243A EP0036045B1 EP 0036045 B1 EP0036045 B1 EP 0036045B1 EP 80200243 A EP80200243 A EP 80200243A EP 80200243 A EP80200243 A EP 80200243A EP 0036045 B1 EP0036045 B1 EP 0036045B1
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EP
European Patent Office
Prior art keywords
gas
wave machine
wall
dynamic pressure
machine according
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Expired
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EP80200243A
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German (de)
French (fr)
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EP0036045A1 (en
Inventor
Jakob Dr. Dipl.- Phys. Keller
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BBC Brown Boveri AG Switzerland
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BBC Brown Boveri AG Switzerland
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Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to DE8080200243T priority Critical patent/DE3068091D1/en
Priority to EP80200243A priority patent/EP0036045B1/en
Priority to AT80200243T priority patent/ATE7811T1/en
Priority to US06/232,622 priority patent/US4397613A/en
Priority to JP3668381A priority patent/JPS56146100A/en
Publication of EP0036045A1 publication Critical patent/EP0036045A1/en
Application granted granted Critical
Publication of EP0036045B1 publication Critical patent/EP0036045B1/en
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F13/00—Pressure exchangers

Definitions

  • the present invention relates to a gas dynamic pressure wave machine, consisting essentially of a cellular wheel, which rotates in a central part and between a respective air-side and gas-side part provided with inlet and outlet openings, the cell opening wall of the high-pressure gas inlet openings at the mouth Cell wheel is designed like a profile.
  • a pressure wave machine of the type mentioned is known from US Pat. No. 3074622, in which an orifice wall of the outlet duct on the air-side part is rounded in profile and the inlet-opening wall opening the cells on the gas-side part is a groove-shaped, i.e. H. has a concave polygonal profile.
  • This is intended to achieve a gradually increasing compression wave which, when striking the air-profiled mouth, should result in a reduced reflection wave, in particular in the event of extreme incorrect tuning in the lower speed range of the pressure wave machine.
  • this design is intended to achieve a reduced outflow at the high-pressure inlet opening and a reduced inflow from the high-pressure inlet. This is intended to correct the deviations of the wave transit times from the ideal transit time.
  • the present problem of weakening the mixing process in the cells cannot be solved by these measures.
  • the profile shape is convex or convex-polygonal to prevent shear layer eddies.
  • the axial extent of the wall part inclined towards the cell edge corresponds to approximately 75% of the distance between two cell walls.
  • the radius of curvature of the mouth advantageously corresponds to approximately half the distance between two cell walls.
  • the newly proposed design of the mouth of the high-pressure gas inlet opening creates a vortex that is the same at the design speed as that at the cell front edge, but has an opposite direction of rotation. At this speed, air and exhaust gas are not mixed. It is particularly advantageous that such profiles are easy to manufacture.
  • the gas-side ends of the cell walls can be designed in a profile-like manner in order to achieve a better cell flow in cooperation with the profiled mouth.
  • Fig. 1, 1 shows a part of a cellular wheel with individual cells 2, which rotates between an exhaust-side part 3 and an air-side part 4 in the direction of arrow 11.
  • the high-pressure gas inlet opening 12 and a low-pressure gas outlet opening 13 are provided on the exhaust-side side part 3, while a high-pressure air outlet opening 14 and a low-pressure air inlet opening 15 are arranged on the air-side side part 4.
  • the mouth wall 5 of the cellular wheel 1 is convex, the radius r being the convex Curvature corresponds to approximately half the distance b between two cell walls 16.
  • the exhaust gas shown in dots enters the cell at the moment a cell 2 is opened in the direction provided by the profiled mouth wall 5.
  • an outflow vortex which would form in the counterflow direction of the rounding of the orifice wall 5, as indicated by the arrow 6, would migrate along the inner wall of the side part 3 and finally bring about a complete separation of the flow.
  • the exhaust gas-side ends 10 of the cell walls 16 are designed in profile-like manner, whereby an almost complete suppression of the opening edge vortex can be achieved by the action of the profile-related front edge vortex. All other opening and closing edges 5 'at the outlet and inlet openings have no profiles.
  • FIG. 2 the same parts are provided with the same reference symbols as in FIG. 1.
  • the mouth wall 5 is formed from two wall parts 17, 18 which meet at an obtuse angle, for example of 160 °, in such a way that both wall parts 17, 18 have the same angle with respect to the horizontal in the figure.
  • the wall parts 17, 18 are preferably designed such that the axial extension a of the wall part 18 inclined to the cellular wheel 1 corresponds to approximately 75% of the distance b between two cell walls 16.
  • Such an embodiment results in a structurally simple, fluid-mechanically insensitive geometry, a balance between the opening and front edge vortices being achieved without profiled cell walls 16, as can be seen from the separating front 8 between the exhaust gas shown in dotted lines and the air shown in broken lines.

Abstract

In order to reduce the intermixing of air and exhaust gases in the cells of gas dynamic compression wave machines caused by the formation of shear layer vortices, the geometry of the leading side of the high pressure inlet orifice facing the bucket wheel has a curved convex or convex-polygonal configuration. Also, the ends of cell walls at the gas inlet ends thereof can be of a profiled configuration to further improve the gas flow conditions in the cells.

Description

Die vorliegende Erfindung betrifft eine gasdynamische Druckwellenmaschine, im wesentlichen bestehend aus einem Zellenrad, welches sich in einem Mittelteil und zwischen je einem mit Eintritts- und Austrittsöffnungen versehenen luftseitigen und gasseitigen Seitenteil dreht, wobei die die Zellen öffnende Wand der Hochdruckgas-Eintrittsöffnungen an der Mündung zum Zellenrad profilartig ausgebildet ist.The present invention relates to a gas dynamic pressure wave machine, consisting essentially of a cellular wheel, which rotates in a central part and between a respective air-side and gas-side part provided with inlet and outlet openings, the cell opening wall of the high-pressure gas inlet openings at the mouth Cell wheel is designed like a profile.

Zum Verständnis des eigentlichen, äußerst komplexen gasdynamischen Druckwellenprozesses, welcher nicht Erfindungsgegenstand ist, wird auf die Druckschrift CH-T-123 063 D (Sonderdruck aus Inufa 74) der Anmelderin verwiesen. Der für das Verständnis der Erfindung notwendige Prozeßablauf wird insbesondere in der Fig. 2 derselben erläutert. Das aus einzelnen Zellen bestehende Zellenband ist die Abwicklung eines Zylinderschnittes des Zellenrades, welches sich bei Drehung des letzteren in Pfeilrichtung nach oben bewegt. Die Druckwellenvorgänge laufen im Innern des Zellenrades ab und bewirken im wesentlichen, daß sich ein gasgefüllter Bereich und ein luftgefüllter Bereich bilden. Im gasgefüllten Bereich entspannt sich das Abgas und entweicht dann in den Niederdruckgasaustritt, während im luftgefüllten Bereich ein Teil der angesaugten Frischluft verdichtet und in den Hochdruckkanal ausgeschoben wird. Der verbleibende Frischluftanteil wird durch das Zellenrad in den Niederdruckgasaustritt überspült und bewirkt damit den vollständigen Austritt der Abgase.To understand the actual, extremely complex gas-dynamic pressure wave process, which is not the subject of the invention, reference is made to the applicant's publication CH-T-123 063 D (special print from Inufa 74). The process sequence necessary for understanding the invention is explained in particular in FIG. 2 thereof. The cell band consisting of individual cells is the development of a cylindrical section of the cell wheel, which moves upwards when the latter rotates in the direction of the arrow. The pressure wave processes take place inside the cellular wheel and essentially cause a gas-filled area and an air-filled area to form. In the gas-filled area, the exhaust gas relaxes and then escapes into the low-pressure gas outlet, while in the air-filled area part of the fresh air drawn in is compressed and pushed out into the high-pressure duct. The remaining fresh air is flushed through the cellular wheel into the low-pressure gas outlet and thus causes the exhaust gases to exit completely.

Eine Druckwellenmaschine der eingangs genannten Art ist bekannt aus der US-Patentschrift 3074622, bei welcher eine Mündungswand des Auslaßkanals am luftseitigen Seitenteil profilartig abgerundet und die die Zellen öffnende Eintrittsmündungswand am gasseitigen Seitenteil ein nutenförmiges, d. h. konkav-polygonales Profil aufweist. Dadurch soll eine allmählich sich erhöhende Kompressionswelle erzielt werden, welche beim Auftreffen auf der luftseitig profilierten Mündung eine verringerte Reflexionswelle ergeben soll, insbesondere bei extremer Falschabstimmung im unteren Drehzahlbereich der Druckwellenmaschine. Gleichzeitig soll durch diese Ausbildung eine verringerte Abströmung an der Hochdruckeinlaßöffnung, sowie ein verringertes Einströmen vom Hochdruckeintritt erreicht werden. Dadurch sollen die Abweichungen der Wellenlaufzeiten von der Ideallaufzeit korrigiert werden. Das vorliegende Problem, den Mischvorgang in den Zellen abzuschwächen, kann durch diese Maßnahmen nicht gelöst werden.A pressure wave machine of the type mentioned is known from US Pat. No. 3074622, in which an orifice wall of the outlet duct on the air-side part is rounded in profile and the inlet-opening wall opening the cells on the gas-side part is a groove-shaped, i.e. H. has a concave polygonal profile. This is intended to achieve a gradually increasing compression wave which, when striking the air-profiled mouth, should result in a reduced reflection wave, in particular in the event of extreme incorrect tuning in the lower speed range of the pressure wave machine. At the same time, this design is intended to achieve a reduced outflow at the high-pressure inlet opening and a reduced inflow from the high-pressure inlet. This is intended to correct the deviations of the wave transit times from the ideal transit time. The present problem of weakening the mixing process in the cells cannot be solved by these measures.

Bei einer aus der CH-Patentschrift 301 135 bekanntgewordenen Druckwellenmaschine ist die Öffnungskante des Spülkanals konkav und Schließkante desselben konvex ausgebildet.In the case of a pressure wave machine which has become known from CH patent specification 301 135, the opening edge of the flushing channel is concave and the closing edge thereof is convex.

Durch das Aufeinandertreffen zweier verschiedener Gase, beispielsweise Luft und Abgas, wird bei einer derartigen Ausbildung einer konkav geformten Öffnungskante jedoch eine Vermischung der beiden Gase verstärkt.When two different gases, for example air and exhaust gas, collide with one another, such a formation of a concave opening edge increases the mixing of the two gases.

Es ist Aufgabe der Erfindung, die Geometrie der Hochdruckgas-Eintrittsöffnung am gasseitigen Seitenteil so auszubilden, daß die auftretenden Phänomene der instationären Ablösung zur Verminderung der Vermischung von Luft und Abgasen ausgenützt werden können.It is an object of the invention to design the geometry of the high-pressure gas inlet opening on the gas-side part in such a way that the phenomena of transient separation which occur can be used to reduce the mixing of air and exhaust gases.

Die vorgenannte Aufgabe wird erfindungsgemäß dadurch gelöst, daß zur Verhinderung von Scherschichtwirbeln die Profilform konvex oder konvex-polygonal ist.The above object is achieved in that the profile shape is convex or convex-polygonal to prevent shear layer eddies.

Bei konvex-polygonaler Geometrie ist es besonders vorteilhaft, wenn zwei die profilierte Mündungswand bildende Wandteile in einem stumpfen Winkel aufeinandertreffen und gegenüber der Axialebene denselben Winkel aufweisen. Gemäß einer bevorzugten Ausbildungsform entspricht die axiale Erstreckung des zum Zellenrand geneigten Wandteiles etwa 75% des Abstandes zwischen zwei Zellenwänden.In the case of convex-polygonal geometry, it is particularly advantageous if two wall parts forming the profiled mouth wall meet at an obtuse angle and have the same angle with respect to the axial plane. According to a preferred embodiment, the axial extent of the wall part inclined towards the cell edge corresponds to approximately 75% of the distance between two cell walls.

Bei einer konvexen Mündungsausbildung entspricht vorteilhafterweise der Krümmungsradius der Mündung etwa der Hälfte des Abstandes zwischen zwei Zellenwänden.In the case of a convex mouth formation, the radius of curvature of the mouth advantageously corresponds to approximately half the distance between two cell walls.

Durch die neu vorgeschlagene Ausbildung der Mündung der Hochdruckgas-Eintrittsöffnung wird ein Wirbel erzeugt, der bei der Auslegungsdrehzahl gleich ist wie jener an der Zellen-Stirnkante, jedoch einen umgekehrten Drehsinn aufweist. Bei dieser Drehzahl findet eine Durchmischung von Luft und Abgas nicht statt. Von besonderem Vorteil ist, daß derartige Profile einfach herstellbar sind.The newly proposed design of the mouth of the high-pressure gas inlet opening creates a vortex that is the same at the design speed as that at the cell front edge, but has an opposite direction of rotation. At this speed, air and exhaust gas are not mixed. It is particularly advantageous that such profiles are easy to manufacture.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung können die gasseitigen Enden der Zellenwände profilartig ausgebildet sein, um im Zusammenwirken mit der profilierten Mündung eine bessere Zellenströmung zu erreichen.According to a further advantageous embodiment of the invention, the gas-side ends of the cell walls can be designed in a profile-like manner in order to achieve a better cell flow in cooperation with the profiled mouth.

In der Zeichnung sind Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigt

  • Fig. 1 einen Teil einer Abwicklung eines Zylinderschnittes in halber Höhe der Zellen des Zellenrades und durch die benachbarten Partien der Seitenteile mit erfindungsgemäßer konvexer Mündungsgeometrie,
  • Fig. eine zweite Ausführungsform mit konvex-polygonaler Mündungsgeometrie.
Exemplary embodiments of the invention are shown schematically in the drawing. It shows
  • 1 shows part of a development of a cylindrical section halfway up the cells of the cellular wheel and through the adjacent parts of the side parts with the convex mouth geometry according to the invention,
  • Fig. A second embodiment with convex-polygonal mouth geometry.

In der Fig. 1 ist mit 1 ein Teil eines Zellenrades mit einzelnen Zellen 2 dargestellt, welches zwischen einem abgasseitigen Seitenteil 3 und einem luftseitigen Seitenteil 4 in Richtung des Pfeiles 11 dreht, bezeichnet. Am abgasseitigen Seitenteil 3 ist die Hochdruckgas-Eintrittsöffnung 12 und eine Niederdruck-Gasaustrittsöffnung 13 vorgesehen, während am luftseitigen Seitenteil 4 eine Hochdruckluft-Austrittsöffnung 14 und eine Niederdruckluft-Eintrittsöffnung 15 angeordnet sind.In Fig. 1, 1 shows a part of a cellular wheel with individual cells 2, which rotates between an exhaust-side part 3 and an air-side part 4 in the direction of arrow 11. The high-pressure gas inlet opening 12 and a low-pressure gas outlet opening 13 are provided on the exhaust-side side part 3, while a high-pressure air outlet opening 14 and a low-pressure air inlet opening 15 are arranged on the air-side side part 4.

An der Hochdruckgas-Eintrittsöffnung 12 ist die Mündungswand 5 zum Zellenrad 1 konvex ausgebildet, wobei der Radius r der konvexen Krümmung etwa der Hälfte des Abstandes b zwischen zwei Zellenwänden 16 entspricht. Dadurch tritt das gepunktet dargestellte Abgas im Moment der Öffnung einer Zelle 2 in der durch die profilierte Mündungswand 5 vorgesehenen Richtung in die Zelle ein. Bei einer langsamen Zellenbewegung, d. h. bei sehr niedriger Drehzahl würde bei nicht abgerundeter Kante ein sich bildender Abströmungswirbel in Gegenströmungsrichtung der Rundung der Mündungswand 5, wie durch den Pfeil 6 angedeutet, der Innenwand des Seitenteiles 3 entlang wandern und schließlich eine vollständige Ablösung der Strömung herbeiführen. Bei der Auslegung der Abrundung bzw. der Profilgebung der Mündungswand 5 wird eine Verminderung dieser Wirbelströmung angestrebt, so daß die beiden entgegengesetzten Wirbel d. h. jener Wirbel 6 an der Mündungswand 5 und der Wirbel (Pfeil 7) an der Stirnkante der Zelle 2, dieselbe Stärke erreichen und somit eine möglichst scharfe und zu den Zellenwänden 16 senkrecht stehende Trennfront 8 zwischen strichliert dargestellter Luft und Abgas erzeugen.At the high-pressure gas inlet opening 12, the mouth wall 5 of the cellular wheel 1 is convex, the radius r being the convex Curvature corresponds to approximately half the distance b between two cell walls 16. As a result, the exhaust gas shown in dots enters the cell at the moment a cell 2 is opened in the direction provided by the profiled mouth wall 5. In the case of a slow cell movement, that is to say at a very low rotational speed, if the edge were not rounded, an outflow vortex which would form in the counterflow direction of the rounding of the orifice wall 5, as indicated by the arrow 6, would migrate along the inner wall of the side part 3 and finally bring about a complete separation of the flow. When designing the rounding or the profile of the mouth wall 5, a reduction of this vortex flow is aimed at, so that the two opposite vertebrae, that is, the vortex 6 on the mouth wall 5 and the vortex (arrow 7) on the front edge of the cell 2, have the same strength and thus produce a separation front 8 between the air and exhaust gas shown in broken lines that is as sharp as possible and perpendicular to the cell walls 16.

Zur Erreichung einer nahezu idealen Zellenströmung werden die abgasseitigen Enden 10 der Zellenwände 16 profilartig ausgebildet, wodurch eine nahezu vollständige Unterdrückung des Öffnungskantenwirbels durch Einwirkung des profilbedingten Stirnkantenwirbels erzielt werden kann. Alle übrigen Öffnungs- und Schließkanten 5' an den Auslaß- und Einlaßöffnungen weisen keinerlei Profilierungen auf.In order to achieve an almost ideal cell flow, the exhaust gas-side ends 10 of the cell walls 16 are designed in profile-like manner, whereby an almost complete suppression of the opening edge vortex can be achieved by the action of the profile-related front edge vortex. All other opening and closing edges 5 'at the outlet and inlet openings have no profiles.

In der Fig. 2 sind gleiche Teile mit denselben Bezugszeichen versehen, wie in Fig. 1.In FIG. 2, the same parts are provided with the same reference symbols as in FIG. 1.

Die dortige Ausführung ist nahezu analog zu der in Fig. 1 beschriebenen, mit Ausnahme der konvex-polygonalen Ausbildung der Mündung 5 an der Hochdruckgas-Eintrittsöffnung 10, sowie mit Ausnahme der Zellenwände 16.The embodiment there is almost analogous to that described in FIG. 1, with the exception of the convex-polygonal design of the mouth 5 at the high-pressure gas inlet opening 10, and with the exception of the cell walls 16.

Die Mündungswand 5 wird aus zwei Wandteilen 17, 18 gebildet, welche in einem stumpfen Winkel, beispielsweise von 160°, aufeinandertreffen, und zwar in der Weise, daß beide Wandteile 17, 18 gegenüber der Horizontalen in der Figur denselben Winkel aufweisen. Dabei sind die Wandteile 17, 18 vorzugsweise so ausgebildet, daß die axiale Erstreckung a des zum Zellenrad 1 geneigten Wandteiles 18 etwas 75% des Abstandes b zwischen je zwei Zellenwänden 16 entspricht.The mouth wall 5 is formed from two wall parts 17, 18 which meet at an obtuse angle, for example of 160 °, in such a way that both wall parts 17, 18 have the same angle with respect to the horizontal in the figure. The wall parts 17, 18 are preferably designed such that the axial extension a of the wall part 18 inclined to the cellular wheel 1 corresponds to approximately 75% of the distance b between two cell walls 16.

Eine derartige Ausführung ergibt eine konstruktiv einfache, strömungsmechanisch unempfindliche Geometrie, wobei ohne profilierte Zellenwände 16 ein Gleichgewicht zwischen Öffnungs- und Stirnkantenwirbel erreicht wird, wie dies aus der Trennfront 8 zwischen dem gepunktet dargestellten Abgas und der strichliert dargestellten Luft hervorgeht.,Such an embodiment results in a structurally simple, fluid-mechanically insensitive geometry, a balance between the opening and front edge vortices being achieved without profiled cell walls 16, as can be seen from the separating front 8 between the exhaust gas shown in dotted lines and the air shown in broken lines.

BezeichnungslisteLabel list

  • 1 Zellenrad1 cell wheel
  • 2 Zellen2 cells
  • 3 abgasseitiges Seitenteil3 exhaust-side part
  • 4 luftseitiges Seitenteil4 air-side part
  • 5 profilierte Mündungswand5 profiled muzzle wall
  • 5' Schließ- und Öffnungskanten5 'closing and opening edges
  • 6 Pfeil6 arrow
  • 7 Pfeil7 arrow
  • 8 Trennfront8 dividing front
  • 10 Profile an den Zellenwänden10 profiles on the cell walls
  • 11 Drehrichtung11 direction of rotation
  • 12 Hochdruckgas-Eintrittsöffnung12 high pressure gas inlet
  • 13 ND-Gasaustrittsöffnung13 LP gas outlet opening
  • 14 HD-Luftaustrittsöffnung14 HP air outlet opening
  • 15 ND-Lufteintrittsöffnung15 LP air inlet opening
  • 16 Zellenwände16 cell walls
  • 17 Wandteil17 wall part
  • 18 Wandteil18 wall part

Claims (7)

1. Gas-dynamic pressure-wave machine, composed essentially of a cellular wheel which rotates in a central part and between a side part which is located on the air side and a side part which is located on the gas side, each side part being provided with inlet and outlet ports, that wall (5) of the high-pressure gas inlet port which opens the cells being of profile-like configuration in the entry region to the cellular wheel, characterised in that, in order to prevent shear- layer turbulence, the profile shape is convex or convex-polygonal.
2. Gas-dynamic pressure-wave machine according to claim 1, characterized in that the wall (5) in the entry region is composed of two wall portions (17, 18) which meet each other at an obtuse angle.
3. Gas-dynamic pressure-wave machine according to claim 2, characterized in that two wall portions (17, 18) are arranged at the same angle relative to the axial plane.
4. Gas-dynamic pressure-wave machine according to claim 2, characterized in that the wall portions (17, 18) are arranged at an angle of approximately 160° relative to each other.
5. Gas-dynamic pressure-wave machine according to claim 2, characterized in that the axial distance (a) corresponding to the wall portion (18) which is inclined relative to the cellular wheel (2) is equivalent to approximately 75% of the interval (b) between two cell walls (16).
6. Gas-dynamic pressure-wave machine according to claim 1, characterized in that the radius (r) of the convex curvature of the wall (5) in the entry region is equivalent to approximately half the interval (b) between two cell walls (16).
7. Gas-dynamic pressure-wave machine according to claim 1, characterized in that those end (10) of the cell walls (16) which are located on the gas side are of profile-like configuration.
EP80200243A 1980-03-17 1980-03-17 Pressure wave machine Expired EP0036045B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE8080200243T DE3068091D1 (en) 1980-03-17 1980-03-17 Pressure wave machine
EP80200243A EP0036045B1 (en) 1980-03-17 1980-03-17 Pressure wave machine
AT80200243T ATE7811T1 (en) 1980-03-17 1980-03-17 PRESSURE WAVE MACHINE.
US06/232,622 US4397613A (en) 1980-03-17 1981-02-09 Compression wave machine
JP3668381A JPS56146100A (en) 1980-03-17 1981-03-16 Gas dynamic pressure wave generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80200243A EP0036045B1 (en) 1980-03-17 1980-03-17 Pressure wave machine

Publications (2)

Publication Number Publication Date
EP0036045A1 EP0036045A1 (en) 1981-09-23
EP0036045B1 true EP0036045B1 (en) 1984-06-06

Family

ID=8186977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200243A Expired EP0036045B1 (en) 1980-03-17 1980-03-17 Pressure wave machine

Country Status (5)

Country Link
US (1) US4397613A (en)
EP (1) EP0036045B1 (en)
JP (1) JPS56146100A (en)
AT (1) ATE7811T1 (en)
DE (1) DE3068091D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687827A5 (en) * 1993-04-08 1997-02-28 Asea Brown Boveri Gas turbine plant with a pressure wave machine.
US7555891B2 (en) 2004-11-12 2009-07-07 Board Of Trustees Of Michigan State University Wave rotor apparatus
WO2012116285A2 (en) 2011-02-25 2012-08-30 Board Of Trustees Of Michigan State University Wave disc engine apparatus
US10520195B2 (en) 2017-06-09 2019-12-31 General Electric Company Effervescent atomizing structure and method of operation for rotating detonation propulsion system
US10969107B2 (en) 2017-09-15 2021-04-06 General Electric Company Turbine engine assembly including a rotating detonation combustor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR876601A (en) * 1940-12-07 1942-11-11 Brown Device for obtaining the renewal of air in a work cycle carried out by means of a cellular wheel, for thermal machines, such as gas turbines, heat pumps, refrigeration machines, etc., operating with gas
CH301135A (en) * 1950-05-09 1954-08-31 Jendrassik George Rotating pressure exchanger.
FR1038377A (en) * 1950-06-21 1953-09-28 Austin Motor Co Ltd internal combustion turbine engine components
DE962026C (en) * 1955-08-22 1957-04-18 Bbc Brown Boveri & Cie Internal combustion engine with at least one exhaust gas turbo fan and at least one additional, otherwise driven flushing or charging fan
DE1065866B (en) * 1957-07-25 1959-09-24 Dudley Brian Spalding, London Gas liquefaction plant
CH399077A (en) * 1960-03-11 1966-03-31 Power Jets Research And Dev Li Power plant, which has a piston engine and a pressure exchanger
US3074622A (en) * 1960-03-29 1963-01-22 Ite Circuit Breaker Ltd Aerodynamic wave machine port lead edge modification for extended speed range
BE790403A (en) * 1971-10-21 1973-04-20 Gen Power Corp INTEGRAL WAVE TURBO-COMPRESSOR
CH610986A5 (en) * 1975-10-10 1979-05-15 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
JPH0248760B2 (en) 1990-10-26
JPS56146100A (en) 1981-11-13
EP0036045A1 (en) 1981-09-23
DE3068091D1 (en) 1984-07-12
ATE7811T1 (en) 1984-06-15
US4397613A (en) 1983-08-09

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