EP0601227B1 - Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur - Google Patents
Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur Download PDFInfo
- Publication number
- EP0601227B1 EP0601227B1 EP92120867A EP92120867A EP0601227B1 EP 0601227 B1 EP0601227 B1 EP 0601227B1 EP 92120867 A EP92120867 A EP 92120867A EP 92120867 A EP92120867 A EP 92120867A EP 0601227 B1 EP0601227 B1 EP 0601227B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- compressor
- impeller
- recess
- stabilizing device
- 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 - Lifetime
Links
- 230000000087 stabilizing effect Effects 0.000 title claims description 14
- 238000010586 diagram Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
Definitions
- the invention relates to a stabilizing device for expanding a characteristic map of a compressor according to the preamble of claim 1.
- the aim is to achieve monotonically falling characteristic curves with no hysteresis as the flow increases, in order to achieve high reliability in part-load operation.
- Such continuous characteristics are called stable.
- stable characteristics are more difficult to achieve the greater the pressure ratio at the design point. That's why you try to generate the desired stable characteristic curves by means of additional stabilizing devices.
- the stabilization device described for example in the patent specification CH 675 279 consists of a recess in the housing of a radial compressor, a stabilization ring being integrated into this recess.
- the recess or the stabilizing ring are arranged in front of the impeller and outside the main flow.
- On the outer circumference of the stabilizing ring there are stabilizing blades which are anchored to the inner contour of the recess, so that the ring and the stabilizing blades are part of the housing. Due to the relatively large groove in the housing, the vortex formed as a result of the gap flow is sucked off.
- the disadvantage of this solution is the complex design of the housing, the ring and the stabilizing blades.
- the already high vibration load on the rotor blades in the entry area is increased by the stabilizing device.
- a stabilizing device (EP-A-0 593 797) in which the disadvantages just mentioned are reduced.
- This device consists of a ring fixedly connected to the rotor blades, a relatively large radial recirculation channel being arranged between the ring and the housing of the compressor.
- a recirculation flow is made possible, which contributes to the stabilization of the map.
- the ring supports the blade leading edges in both the radial and tangential directions and thereby reduces the blade vibrations.
- the disadvantage of this solution is the necessity of the relatively large recirculation channel and the fact that some radial compressors have an undesirably strong recirculation.
- the invention tries to avoid all these disadvantages. It is based on the task of preventing the formation of the harmful gap flow from one blade side to the other in a compressor in the impeller inlet area and thus expanding the compressor map by stabilizing the flow and at the same time eliminating the vibration problems in the impeller inlet area.
- the stabilizing device consists of a ring which is arranged in a recess in the housing of the compressor, which has the shape of a rotationally symmetrical groove, the ring being fixedly connected to the rotor blades and arranged only in the entry region of the impeller, and the dimensions of the ring and the recess are matched to one another such that when the impeller rotates about the impeller axis between the ring and the wall of the housing there is only such play that is sufficient to ensure that the ring and the housing come into contact during operation avoid.
- the advantages of the invention can be seen, inter alia, in the fact that no vortices or only vortices occur to a reduced extent in the inlet part of the impeller.
- the efficiency of the compressor is increased and the stable range of the compressor characteristic is widened.
- the blades support the blades in the tangential and radial directions, so that the vibration load is reduced. Since the ring is only limited to the inlet part of the impeller and the radius there is smaller than at the impeller outlet, the centrifugal force is relatively small and therefore manageable.
- FIG. 1 An embodiment of the invention is shown using a radial compressor.
- the single figure shows a partial meridian section of the compressor with the stabilization device. Only the elements essential for understanding the invention are shown.
- the direction of flow of the working fluid is indicated by an arrow.
- part of a radial compressor is shown with the stabilization device according to the invention.
- the compressor consists of the housing 4 and the impeller 3.
- the impeller 3 is equipped with a ring 1 fixed to the blades 2 in the form of a short cover plate. This cover plate is only limited to the inlet part of the impeller 3.
- a recess 5 in the form of a rotationally symmetrical groove is present in the housing 4 of the compressor.
- the dimensions of the recess 5 are matched to the dimensions of the ring 1 so that the ring 1 can rotate well in the recess 5 around the impeller axis when the impeller 3 rotates, but only such a narrow one between the ring 1 and the wall of the housing 4 There is play, which is sufficient to avoid contact of ring 1 and housing 4 during operation.
- This game is e.g. B. as great as the game between the upper edges of the blades 2 and the wall of the housing 4th
- the ring 1 supports the blade leading edges in the radial and tangential directions. The result is that the blade vibration amplitudes are greatly reduced and the mechanical blade load is reduced. Since the ring 1 only on the entry part the impeller 3 is limited, where the radius is significantly smaller than at the impeller outlet, the centrifugal force is also significantly smaller and therefore manageable. A destruction of the ring 1 due to excessive centrifugal force thus does not take place.
- the ring 1 rotating in the recess 5 with the impeller 3 prevents the formation of the gap flow over the outer edges of the blades in the impeller region in which the gap flow would contribute to the formation of a harmful vortex. As a result, the vortex does not arise at all or only to a reduced extent. This increases the efficiency of the compressor and widens the stable range of the compressor characteristic.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Claims (1)
- Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur garni d'aubes mobiles (2), se composant d'un anneau (1), qui est disposé dans une cavité (5) dans le corps (4) du compresseur, qui a la forme d'une rainure à symétrie de révolution, caractérisé en ce que l'anneau (1) est fixé aux aubes mobiles (2) et n'est disposé que dans la région d'entrée de la roue mobile (3), les dimensions de l'anneau (1) et de la cavité (5) étant adaptées les unes aux autres de telle façon que, lors de la rotation de la roue mobile (3) autour de l'axe de la roue mobile, il n'existe entre l'anneau (1) et la paroi du corps (4) qu'un jeu qui est suffisant pour éviter en marche le contact entre l'anneau (1) et le corps (4).
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92120867A EP0601227B1 (fr) | 1992-12-08 | 1992-12-08 | Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur |
DE59208865T DE59208865D1 (de) | 1992-12-08 | 1992-12-08 | Stabilierungseinrichtung zur Kennfelderweiterung eines Verdichters |
US08/153,427 US5375974A (en) | 1992-12-08 | 1993-11-16 | Stabilizing device for extending the characteristic diagram of a compressor |
KR1019930024777A KR940015291A (ko) | 1992-12-08 | 1993-11-19 | 압축기의 특성 선도(線圖)확장용 안정화 장치 |
CZ932503A CZ283127B6 (cs) | 1992-12-08 | 1993-11-22 | Stabilizační zařízení pro rozšíření charakteristického pole kompresoru |
PL93301303A PL172608B1 (pl) | 1992-12-08 | 1993-12-03 | Urzadzenie stabilizujace do rozszerzania pola charakterystyki sprezarki PL PL |
JP5305071A JPH06235398A (ja) | 1992-12-08 | 1993-12-06 | 圧縮機の特性線図を拡大するための安定化装置 |
CN93120889A CN1034605C (zh) | 1992-12-08 | 1993-12-08 | 用于扩展离心式压缩机的特性曲线的稳定装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92120867A EP0601227B1 (fr) | 1992-12-08 | 1992-12-08 | Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0601227A1 EP0601227A1 (fr) | 1994-06-15 |
EP0601227B1 true EP0601227B1 (fr) | 1997-09-03 |
Family
ID=8210287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92120867A Expired - Lifetime EP0601227B1 (fr) | 1992-12-08 | 1992-12-08 | Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur |
Country Status (8)
Country | Link |
---|---|
US (1) | US5375974A (fr) |
EP (1) | EP0601227B1 (fr) |
JP (1) | JPH06235398A (fr) |
KR (1) | KR940015291A (fr) |
CN (1) | CN1034605C (fr) |
CZ (1) | CZ283127B6 (fr) |
DE (1) | DE59208865D1 (fr) |
PL (1) | PL172608B1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223876A1 (de) * | 2002-05-29 | 2003-12-11 | Daimler Chrysler Ag | Verdichter für eine Brennkraftmaschine |
US7189059B2 (en) * | 2004-10-27 | 2007-03-13 | Honeywell International, Inc. | Compressor including an enhanced vaned shroud |
DE102005019938A1 (de) * | 2005-04-29 | 2006-11-09 | Daimlerchrysler Ag | Abgasturbolader für eine Brennkraftmaschine |
CN101583800B (zh) * | 2007-02-14 | 2012-12-05 | 博格华纳公司 | 压缩机壳体 |
CN100457548C (zh) * | 2007-11-09 | 2009-02-04 | 北京航空航天大学 | 一种非轴对称组合处理机匣 |
JP6159798B2 (ja) * | 2012-06-25 | 2017-07-05 | ボーグワーナー インコーポレーテッド | 排気ガスターボチャージャ |
KR101501477B1 (ko) * | 2013-03-25 | 2015-03-12 | 두산중공업 주식회사 | 원심압축기 |
US9822698B2 (en) * | 2015-02-06 | 2017-11-21 | Honeywell International Inc. | Passive and semi-passive inlet-adjustment mechanisms for compressor, and turbocharger having same |
CN107208658B (zh) * | 2015-02-18 | 2019-07-05 | 株式会社Ihi | 离心压缩机及增压器 |
JP6770594B2 (ja) * | 2017-02-08 | 2020-10-14 | 三菱重工エンジン&ターボチャージャ株式会社 | 遠心圧縮機及びターボチャージャ |
JP6902615B2 (ja) * | 2017-11-06 | 2021-07-14 | 三菱重工エンジン&ターボチャージャ株式会社 | 遠心圧縮機及びこの遠心圧縮機を備えたターボチャージャ |
DE102018132978A1 (de) * | 2018-12-19 | 2020-06-25 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Turboverdichter mit angepasster Meridiankontur der Schaufeln und Verdichterwand |
CN109723674B (zh) * | 2019-01-24 | 2024-01-26 | 上海海事大学 | 一种用于压气机转子的可转动内端壁机匣 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204622C (fr) * | ||||
GB191313134A (en) * | 1913-06-06 | 1914-04-23 | Bertrams Ltd | Improvements in Centrifugal Pumps. |
GB555888A (en) * | 1941-10-25 | 1943-09-10 | Scintilla Ltd | Method of making runners for blowers |
FR907976A (fr) * | 1943-10-18 | 1946-03-27 | Sulzer Ag | Compresseur centrifuge |
US2594042A (en) * | 1947-05-21 | 1952-04-22 | United Aircraft Corp | Boundary layer energizing means for annular diffusers |
NO276573L (fr) * | 1973-07-05 | 1975-02-03 | Thune Eureka As | |
FI61235C (fi) * | 1979-01-29 | 1982-06-10 | Nokia Oy Ab | Vinghjul hos en centrifugalflaekt |
IT1174991B (it) * | 1983-07-06 | 1987-07-01 | Pompe F B M Spa | Pompa centrifuga per materiali e prodotti molto densi e/o viscosi |
FR2559544B1 (fr) * | 1984-02-10 | 1988-07-08 | Creusot Loire | Procede de realisation d'une roue a aubes fermee et roue obtenue au moyen de ce procede |
JPS61138899A (ja) * | 1984-12-11 | 1986-06-26 | Matsushita Electric Ind Co Ltd | 斜流送風機 |
CH675279A5 (fr) * | 1988-06-29 | 1990-09-14 | Asea Brown Boveri | |
US5105616A (en) * | 1989-12-07 | 1992-04-21 | Sundstrand Corporation | Gas turbine with split flow radial compressor |
US5304033A (en) * | 1992-07-20 | 1994-04-19 | Allied-Signal Inc. | Rotary compressor with stepped cover contour |
-
1992
- 1992-12-08 DE DE59208865T patent/DE59208865D1/de not_active Expired - Fee Related
- 1992-12-08 EP EP92120867A patent/EP0601227B1/fr not_active Expired - Lifetime
-
1993
- 1993-11-16 US US08/153,427 patent/US5375974A/en not_active Expired - Fee Related
- 1993-11-19 KR KR1019930024777A patent/KR940015291A/ko not_active Application Discontinuation
- 1993-11-22 CZ CZ932503A patent/CZ283127B6/cs unknown
- 1993-12-03 PL PL93301303A patent/PL172608B1/pl unknown
- 1993-12-06 JP JP5305071A patent/JPH06235398A/ja active Pending
- 1993-12-08 CN CN93120889A patent/CN1034605C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1034605C (zh) | 1997-04-16 |
PL172608B1 (pl) | 1997-10-31 |
PL301303A1 (en) | 1994-06-13 |
KR940015291A (ko) | 1994-07-20 |
EP0601227A1 (fr) | 1994-06-15 |
DE59208865D1 (de) | 1997-10-09 |
CN1096858A (zh) | 1994-12-28 |
JPH06235398A (ja) | 1994-08-23 |
CZ283127B6 (cs) | 1998-01-14 |
US5375974A (en) | 1994-12-27 |
CZ250393A3 (en) | 1994-06-15 |
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