EP3298285A1 - Leitschaufel für einen diffusor eines radialverdichters - Google Patents
Leitschaufel für einen diffusor eines radialverdichtersInfo
- Publication number
- EP3298285A1 EP3298285A1 EP16721363.6A EP16721363A EP3298285A1 EP 3298285 A1 EP3298285 A1 EP 3298285A1 EP 16721363 A EP16721363 A EP 16721363A EP 3298285 A1 EP3298285 A1 EP 3298285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vane
- diffuser
- compressor
- chord
- guide
- 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
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
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/14—Two-dimensional elliptical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
Definitions
- the invention relates to a guide vane for a diffuser of a centrifugal compressor according to the preamble of patent claim 1.
- the radial compressor usually has a receiving region in which a compressor wheel of the centrifugal compressor can be received or, in the finished state of the radial compressor, is accommodated. Furthermore, the centrifugal compressor has a downstream of the
- Receiving region arranged diffuser which extends, for example, at least substantially in the radial direction.
- air is compressed by means of the compressor wheel, which flows off the compressor and flows through the diffuser.
- the aforementioned vane is in the example as a radial diffuser
- the guide vane on a skeleton line, wherein the guide vane may be formed, for example, as a wing profile.
- a plurality of guide vanes are arranged in the diffuser, which in
- Such a blade geometry is, for example, a geometry in the form of a profile drop, which leads to a strong narrowing of a flow channel through which air can flow, so that only a small maximum mass flow of the air can flow through the flow channel.
- Another blade geometry is the so-called NACA profile, which is optimized for aircraft wings, but ensures high losses in the diffuser.
- Another blade geometry is the so-called wedge blade, which leads to high losses due to a sudden increase in channel diameter at the blade end. If the respective guide blade is designed, for example, as a straight blade of constant thickness, this leads to an undesirably strong delay in the flow of the air, resulting in high losses.
- Another blade geometry is the so-called circular arc geometry with constant thickness. In this case, there is an insufficiently high number of free geometry parameters and this blade geometry leads to strong delays, in particular in the middle part of the guide blade.
- the skeleton line is elliptical in shape, at least in a subregion.
- the entire skeleton line that is to say elliptical
- the entire skeleton line is formed along its entire extent. Because of the engagement a vane having an elliptical skeleton line, an at least nearly uniform deceleration in a flow channel at least partially delimited by the vane can be realized without excessive constriction at the leading edge of the vane.
- the use of a vane with an elliptical skeleton line provides a high degree of free geometry parameter.
- the invention also includes a radial compressor, in particular for an exhaust gas turbocharger of an internal combustion engine, having a receiving area for a compressor wheel of the centrifugal compressor, with a diffuser arranged downstream of the receiving area, and with at least one guide vane according to the invention arranged in the diffuser.
- the diffuser itself is a flow channel through which air can pass, the air being compressed by means of the compressor wheel, flowing off the compressor wheel and flowing through the diffuser. Characterized in that the vane one at least substantially
- the drawing shows in the single figure is a schematic sectional view of a
- FIG. 1 shows, in a schematic sectional view, a guide vane, denoted as a whole by 10, for a downstream of a receiving area for a compressor wheel
- Motor vehicle trained and includes a exhaust gas of the internal combustion engine through-flowable exhaust tract and a through-air through air intake.
- the intake tract By means of the intake tract, the air flowing through the intake tract is guided into at least one combustion chamber, in particular cylinder, of the internal combustion engine.
- the exhaust gas turbocharger has a turbine, which is arranged in the exhaust tract and can be driven by the exhaust gas.
- the turbine comprises a turbine housing and a turbine wheel arranged in the turbine housing, which can be driven by the exhaust gas.
- the turbine wheel is rotatable about an axis of rotation relative to the turbine housing and part of a rotor of the exhaust gas turbocharger.
- the rotor further comprises the aforementioned compressor wheel and a shaft with which the turbine wheel and the
- the centrifugal compressor is arranged in the intake tract and comprises a
- Compressor housing in which the compressor wheel is arranged. That's it
- Compressor is arranged is limited by the compressor housing.
- the centrifugal compressor further comprises the aforementioned diffuser, which in
- the diffuser is a channel which can be flowed through by the air compressed by the compressor wheel and flowing away from the compressor wheel or through which flows during operation of the centrifugal compressor.
- the diffuser is designed as a radial diffuser, wherein the diffuser extends at least substantially in the radial direction.
- the centrifugal compressor further comprises a guide, which is also referred to as Nachleitgitter.
- the guide device comprises a plurality of guide vanes arranged in the diffuser and thus downstream of the receiving region or the compressor wheel, of which the guide vane designated by 10 is shown in the FIG.
- the vanes arranged in the diffuser serve to guide the diffuser
- the figure also shows a diagram 12, which is used as an auxiliary diagram for constructing the skeleton line X. From the Fig. It is particularly clear that the
- Skeleton line X of the vane 10 is designed as an ellipse with elliptical thickening over the length of the chord C of the vane 10.
- the guide blade 10 has a blade inlet 14, via which the guide blade 10 is impinged by the air during operation of the radial compressor.
- the guide vane 10 has a vane outlet 16, via which the air flows off the vane 10.
- Blade entry 14 and blade exit 16 intersect a common line to define the chord C.
- an entry radius of the guide vane 10 is designated, wherein with f r 4 a
- Outlet radius of the vane 10 is designated.
- the entry radius f r , 3 is also illustrated by r 3 in the figure, wherein the exit radius f r , 4 is also illustrated by r 4 .
- a radius r 2 can be seen .
- the guide vane 10 has an entry angle a b 3 and an exit angle a b 4 , wherein the guide vane 10, in particular its inlet area, in which the vane 10 is flowed by air, the entry angle a b , 3 encloses with the radial.
- the vane 10 in particular its exit region, over which the guide vane 10 is flowed away from the air, includes the exit angle a b , 4 with the radial, said radial being illustrated in the figure with r. Furthermore, the guide vane 10 has a maximum thickness d b and a so-called
- an at least substantially uniform deceleration without excessive constriction on the blade leading edge can be realized in a flow channel which is at least partially traversed by the guide blade 10 and can be traversed by the air Measurements of free geometry parameters can be displayed.
- a tracking grating design with an elliptical characteristic for the diffuser, which is preferably designed as a radial diffuser, as a result of which particularly advantageous flow conditions in the diffuser can be represented.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015006458.4A DE102015006458A1 (de) | 2015-05-20 | 2015-05-20 | Leitschaufel für einen Diffusor eines Radialverdichters |
| PCT/EP2016/000762 WO2016184548A1 (de) | 2015-05-20 | 2016-05-10 | Leitschaufel für einen diffusor eines radialverdichters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3298285A1 true EP3298285A1 (de) | 2018-03-28 |
| EP3298285B1 EP3298285B1 (de) | 2019-04-03 |
Family
ID=54481517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16721363.6A Active EP3298285B1 (de) | 2015-05-20 | 2016-05-10 | Leitschaufel für einen diffusor eines radialverdichters |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10619647B2 (de) |
| EP (1) | EP3298285B1 (de) |
| JP (1) | JP6716609B2 (de) |
| CN (1) | CN107624150B (de) |
| DE (1) | DE102015006458A1 (de) |
| WO (1) | WO2016184548A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017118950A1 (de) * | 2017-08-18 | 2019-02-21 | Abb Turbo Systems Ag | Diffusor für einen Radialverdichter |
| JP6980028B2 (ja) * | 2017-12-07 | 2021-12-15 | 三菱重工エンジン&ターボチャージャ株式会社 | ディフューザ及びターボチャージャー |
| CN116641915B (zh) * | 2022-11-18 | 2026-02-27 | 中国航发沈阳发动机研究所 | 一种宽适应性压气机进口导向器叶型 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1792015A (en) * | 1930-01-23 | 1931-02-10 | Gerard P Herrick | Aerofoil |
| US2592471A (en) * | 1946-08-22 | 1952-04-08 | James G Sawyer | Axial flow fan |
| US4243357A (en) * | 1979-08-06 | 1981-01-06 | Cummins Engine Company, Inc. | Turbomachine |
| DE3441115C1 (de) * | 1984-11-10 | 1986-01-30 | Daimler-Benz Ag, 7000 Stuttgart | Laufrad fuer eine Gasturbine |
| US5152661A (en) * | 1988-05-27 | 1992-10-06 | Sheets Herman E | Method and apparatus for producing fluid pressure and controlling boundary layer |
| US6589013B2 (en) * | 2001-02-23 | 2003-07-08 | Macro-Micro Devices, Inc. | Fluid flow controller |
| EP1797283B2 (de) | 2004-11-16 | 2017-11-29 | Honeywell International Inc. | Turbolader mit leitschaufeln variabler geometrie |
| US8016557B2 (en) * | 2005-08-09 | 2011-09-13 | Praxair Technology, Inc. | Airfoil diffuser for a centrifugal compressor |
| DE202006020187U1 (de) * | 2006-06-29 | 2007-11-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Radialverdichter |
| JP4505523B2 (ja) * | 2007-07-18 | 2010-07-21 | 本田技研工業株式会社 | 遠心型圧縮機のアキシャルディフューザ |
| JP2009197614A (ja) | 2008-02-19 | 2009-09-03 | Ihi Corp | 遠心圧縮機及びディフューザベーン |
| US9222485B2 (en) | 2009-07-19 | 2015-12-29 | Paul C. Brown | Centrifugal compressor diffuser |
| US8511981B2 (en) | 2010-07-19 | 2013-08-20 | Cameron International Corporation | Diffuser having detachable vanes with positive lock |
| AU2010358891A1 (en) * | 2010-08-12 | 2013-03-21 | Nuovo Pignone S.P.A. | Radial diffuser vane for centrifugal compressors |
| JP5192060B2 (ja) * | 2011-04-12 | 2013-05-08 | 株式会社豊田中央研究所 | コンプレッサ |
| EP2677123B2 (de) * | 2012-06-18 | 2018-04-25 | General Electric Technology GmbH | Diffusor für Turbomaschinen |
| ITCO20120055A1 (it) | 2012-11-06 | 2014-05-07 | Nuovo Pignone Srl | Pala di canale di ritorno per compressori centrifughi |
-
2015
- 2015-05-20 DE DE102015006458.4A patent/DE102015006458A1/de not_active Withdrawn
-
2016
- 2016-05-10 WO PCT/EP2016/000762 patent/WO2016184548A1/de not_active Ceased
- 2016-05-10 EP EP16721363.6A patent/EP3298285B1/de active Active
- 2016-05-10 JP JP2017559831A patent/JP6716609B2/ja active Active
- 2016-05-10 US US15/575,135 patent/US10619647B2/en active Active
- 2016-05-10 CN CN201680028688.1A patent/CN107624150B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US10619647B2 (en) | 2020-04-14 |
| JP2018514699A (ja) | 2018-06-07 |
| JP6716609B2 (ja) | 2020-07-08 |
| CN107624150A (zh) | 2018-01-23 |
| US20180142701A1 (en) | 2018-05-24 |
| WO2016184548A1 (de) | 2016-11-24 |
| DE102015006458A1 (de) | 2015-12-03 |
| EP3298285B1 (de) | 2019-04-03 |
| CN107624150B (zh) | 2022-06-17 |
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