EP0036045B1 - Machine à ondes de pression - Google Patents

Machine à ondes de pression 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
Authority
EP
European Patent Office
Prior art keywords
gas
wave machine
wall
dynamic pressure
machine according
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.)
Expired
Application number
EP80200243A
Other languages
German (de)
English (en)
Other versions
EP0036045A1 (fr
Inventor
Jakob Dr. Dipl.- Phys. Keller
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to AT80200243T priority Critical patent/ATE7811T1/de
Priority to DE8080200243T priority patent/DE3068091D1/de
Priority to EP80200243A priority patent/EP0036045B1/fr
Priority to US06/232,622 priority patent/US4397613A/en
Priority to JP3668381A priority patent/JPS56146100A/ja
Publication of EP0036045A1 publication Critical patent/EP0036045A1/fr
Application granted granted Critical
Publication of EP0036045B1 publication Critical patent/EP0036045B1/fr
Expired legal-status Critical Current

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Classifications

    • 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.

Claims (7)

1. Machine à ondes de pression gazodynami- que formée essentiellement d'une roue cellulaire qui tourne dans une partie médiane et entre deux parties latérales pourvues respectivement d'ouvertures d'entrée et de sortie situées respectivement du côté de l'air et du côté du gaz. la paroi (5) ouvrant les cellules de l'ouverture d'entrée de gaz à haute pression étant profilée au niveau de son embouchure vers la roue cellulaire, caractérisée en ce que, pour empêcher des tourbillons à couches de cisaillement, la forme profilée est convexe ou convexe-polygonale.
2. Machine à ondes de pression gazodynami- que suivant la revendication 1, caractérisée en ce que la paroi d'embouchure (5) est formée de deux parties de paroi (17, 18) qui se recoupent suivant un angle obtus.
3. Machine à ondes de pression gazodynami- que suivant la revendication 2, caractérisée en ce que deux parties de paroi (17, 18) présentent le même angle par rapport au plan axial.
4. Machine à ondes de pression gazodynami- que suivant la revendication 2, caractérisée en ce que les parties de paroi (17, 18) forment un angle d'environ 160° l'une avec l'autre.
5. Machine à ondes de pression gazodynami- que suivant la revendication 2, caractérisée en ce que l'extension axiale (a) de la partie de paroi (18) inclinée vers la roue cellulaire (2) correspond à environ 75% de la distance (b) entre deux parois de cellule (16).
6. Machine à ondes de pression gazodynami- que suivant la revendication 1, caractérisée en ce que le rayon (r) de la courbure convexe de la paroi d'embouchure (5) correspond à peu près à la moitié de la distance (b) entre deux parois de cellule (16).
7. Machine à ondes de pression gazodynami- que suivant la revendication 1, caractérisée en ce que les extrémités (10) des parois de cellule (16) situées du côté du gaz ont une configuration profilée.
EP80200243A 1980-03-17 1980-03-17 Machine à ondes de pression Expired EP0036045B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT80200243T ATE7811T1 (de) 1980-03-17 1980-03-17 Druckwellenmaschine.
DE8080200243T DE3068091D1 (en) 1980-03-17 1980-03-17 Pressure wave machine
EP80200243A EP0036045B1 (fr) 1980-03-17 1980-03-17 Machine à ondes de pression
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 (fr) 1980-03-17 1980-03-17 Machine à ondes de pression

Publications (2)

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

Family

ID=8186977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200243A Expired EP0036045B1 (fr) 1980-03-17 1980-03-17 Machine à ondes de pression

Country Status (5)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687827A5 (de) * 1993-04-08 1997-02-28 Asea Brown Boveri Gasturbinenanlage mit einer Druckwellenmaschine.
US7555891B2 (en) 2004-11-12 2009-07-07 Board Of Trustees Of Michigan State University Wave rotor apparatus
WO2012116285A2 (fr) 2011-02-25 2012-08-30 Board Of Trustees Of Michigan State University Appareil de moteur à disque à ondes
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 (fr) * 1940-12-07 1942-11-11 Brown Dispositif pour obtenir le renouvellement de l'air dans un cycle de travail réalisé au moyen d'une roue cellulaire, pour machines thermiques, telles que turbines à gaz, pompes de chaleur, machines frigorifiques, etc., fonctionnant avec un gaz
CH301135A (de) * 1950-05-09 1954-08-31 Jendrassik George Rotierender Druckaustauscher.
FR1038377A (fr) * 1950-06-21 1953-09-28 Austin Motor Co Ltd éléments moteurs de turbine à combustion interne
DE962026C (de) * 1955-08-22 1957-04-18 Bbc Brown Boveri & Cie Brennkraftmaschine mit mindestens einem Abgasturbogeblaese und mindestens einem zusaetzlichen, anderweitig angetriebenen Spuel- oder Ladegeblaese
DE1065866B (de) * 1957-07-25 1959-09-24 Dudley Brian Spalding, London Gasverflüssigungsanlage
CH399077A (de) * 1960-03-11 1966-03-31 Power Jets Research And Dev Li Kraftanlage, die eine Kolbenkraftmaschine und einen Druckaustauscher aufweist
US3074622A (en) * 1960-03-29 1963-01-22 Ite Circuit Breaker Ltd Aerodynamic wave machine port lead edge modification for extended speed range
BE790403A (fr) * 1971-10-21 1973-04-20 Gen Power Corp Turbo-compresseur integral a onde
CH610986A5 (fr) * 1975-10-10 1979-05-15 Bbc Brown Boveri & Cie

Also Published As

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

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