EP0601227A1 - 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
- EP0601227A1 EP0601227A1 EP92120867A EP92120867A EP0601227A1 EP 0601227 A1 EP0601227 A1 EP 0601227A1 EP 92120867 A EP92120867 A EP 92120867A EP 92120867 A EP92120867 A EP 92120867A EP 0601227 A1 EP0601227 A1 EP 0601227A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- ring
- impeller
- recess
- housing
- 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
- 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 stabilization device for expanding a characteristic map of a compressor.
- 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.
- Stabilizing blades are present on the outer circumference of the stabilizing ring and are anchored to the inner contour of the recess.
- 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.
- This device consists of a ring fixedly connected to the 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 with some radial compressors an undesirably strong recirculation occurs.
- the invention tries to avoid all these disadvantages. It is based on the task of a compressor in the impeller inlet area to prevent the formation of the harmful gap flow from one blade side to the other and thus to expand the compressor map by stabilizing the flow and at the same time to eliminate the vibration problems in the impeller inlet area.
- the stabilization device consists of a ring fixedly attached to the rotor blades and a recess in the housing of the compressor in the form of a rotationally symmetrical groove, the ring being attached in the inlet area of the impeller such that the ring rotates when the impeller rotates the recess is movable, with only a usual close play between the ring and the wall of the housing.
- 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 such that the ring 1 is easily movable in the recess 5 when the impeller 3 rotates, but only the usual close play exists between the ring 1 and the wall of the housing 4, which z. B. is also present between the upper edges of the blades 2 and the wall of the housing 4.
- 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 is only limited to the inlet part of the impeller 3, 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.
- the vortex does not arise at all or only in a reduced scope. 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)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59208865T DE59208865D1 (de) | 1992-12-08 | 1992-12-08 | Stabilierungseinrichtung zur Kennfelderweiterung eines Verdichters |
EP92120867A EP0601227B1 (fr) | 1992-12-08 | 1992-12-08 | Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur |
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 true EP0601227A1 (fr) | 1994-06-15 |
EP0601227B1 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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223876A1 (de) * | 2002-05-29 | 2003-12-11 | Daimler Chrysler Ag | Verdichter für eine Brennkraftmaschine |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US20100098532A1 (en) * | 2007-02-14 | 2010-04-22 | Borgwarner Inc. | Compressor housing |
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 |
CN104364493B (zh) * | 2012-06-25 | 2018-05-15 | 博格华纳公司 | 排气涡轮增压器 |
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 |
DE112015004675T5 (de) * | 2015-02-18 | 2017-07-06 | Ihi Corporation | Zentrifugalkompressor und Turbolader |
WO2018146752A1 (fr) * | 2017-02-08 | 2018-08-16 | 三菱重工エンジン&ターボチャージャ株式会社 | Compresseur et turbocompresseur |
EP3708847B1 (fr) | 2017-11-06 | 2023-08-30 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Compresseur centrifuge et turbocompresseur de suralimentation comprenant ledit compresseur centrifuge |
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204622C (fr) * | ||||
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 |
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 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
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
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204622C (fr) * | ||||
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 |
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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223876A1 (de) * | 2002-05-29 | 2003-12-11 | Daimler Chrysler Ag | Verdichter für eine Brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
CN1034605C (zh) | 1997-04-16 |
DE59208865D1 (de) | 1997-10-09 |
KR940015291A (ko) | 1994-07-20 |
PL172608B1 (pl) | 1997-10-31 |
CZ283127B6 (cs) | 1998-01-14 |
CZ250393A3 (en) | 1994-06-15 |
PL301303A1 (en) | 1994-06-13 |
CN1096858A (zh) | 1994-12-28 |
JPH06235398A (ja) | 1994-08-23 |
EP0601227B1 (fr) | 1997-09-03 |
US5375974A (en) | 1994-12-27 |
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