CA3023378A1 - Radial compressor - Google Patents
Radial compressor Download PDFInfo
- Publication number
- CA3023378A1 CA3023378A1 CA3023378A CA3023378A CA3023378A1 CA 3023378 A1 CA3023378 A1 CA 3023378A1 CA 3023378 A CA3023378 A CA 3023378A CA 3023378 A CA3023378 A CA 3023378A CA 3023378 A1 CA3023378 A1 CA 3023378A1
- Authority
- CA
- Canada
- Prior art keywords
- radial compressor
- impeller
- moving blades
- wheel disc
- impeller hub
- 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.)
- Abandoned
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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- 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
- F04D29/285—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a radial compressor comprising a rotor, a housing, and a radial compressor impeller which is rotationally fixed to the rotor. The radial compressor impeller comprises a wheel disk on which rotor blades are arranged in the circumferential direction, said rotor blades comprising a leading edge and a trailing edge. The radial compressor comprises an impeller hub in the region in front of the leading edge of the rotor blades of the radial compressor impeller, said hub being arranged on the end of the rotor and/or the wheel disk in a concentric and rotationally fixed manner. The invention is characterized in that rotor blades comprising leading edges and trailing edges are arranged on the impeller hub in the circumferential direction.
Description
Radial compressor The invention relates to a radial compressor comprising a radial compressor impeller, a wheel disc with moving blades arranged evenly distributed in the circumferential direction having a leading edge as well as an trailing edge, the radial compressor impeller being attached to a rotor, on which an impeller hub adjoining the radial compressor impeller is attached.
Radial compressors convert mechanical energy into pressure energy in that they utilise the centrifugal acceleration, they substantially consists of an impeller, which is attached to a driving rotor, a diffuser and a housing. The impeller comprises a plurality of moving blades and as a function of the purpose of operation, the mechanical embodiment of the impeller is carried out in the manner of a closed or of an opened impeller. In the case of closed impellers, the moving blades are provided with a shroud, in the case of open impellers, the blades have a clear outside edge.
The conveying gas is axially sucked in approximately in the centre of the compressor and compressed by the centrifugal force and accelerated towards the outside, wherein in the diffuser arranged on the circumference side the kinetic energy is converted for the greatest part into additional pressure and the conveying gas further compressed.
The energy conversion in radial compressors involves corresponding flow, friction and gap losses, which is why it is important for increasing the efficiencies to not only optimise the radial compressor impeller alone, but also consider the adjoining components.
Radial compressors convert mechanical energy into pressure energy in that they utilise the centrifugal acceleration, they substantially consists of an impeller, which is attached to a driving rotor, a diffuser and a housing. The impeller comprises a plurality of moving blades and as a function of the purpose of operation, the mechanical embodiment of the impeller is carried out in the manner of a closed or of an opened impeller. In the case of closed impellers, the moving blades are provided with a shroud, in the case of open impellers, the blades have a clear outside edge.
The conveying gas is axially sucked in approximately in the centre of the compressor and compressed by the centrifugal force and accelerated towards the outside, wherein in the diffuser arranged on the circumference side the kinetic energy is converted for the greatest part into additional pressure and the conveying gas further compressed.
The energy conversion in radial compressors involves corresponding flow, friction and gap losses, which is why it is important for increasing the efficiencies to not only optimise the radial compressor impeller alone, but also consider the adjoining components.
2 In DE 691 06 179 T2 a diagonal compressor is described and shown, the same comprises an impeller with moving blades and a moving hub following thereon on the end of the rotor.
An impeller hub lies in the inlet region of a radial compressor and depending on the size of the impeller hub, the maximum inlet area of the medium to be compressed and thus of the suction volume flow from the leading edge limited.
The invention is based on the object of stating a radial compressor impeller which makes possible an enlarged inlet area at the start of the compression from the leading edge.
According to the invention, the object is solved by a radial compressor comprising a rotor that is rotatably mounted in a housing, on which a radial compressor impeller is arranged in a rotationally fixed manner. The radial compressor impeller comprises a wheel disc, on which moving blades are arranged in the circumferential direction and which have a leading edge and an trailing edge.
In the region in _front of the leading edge, the radial compressor impeller comprises an impeller hub which at an end of the rotor is arranged on the same in a concentric and rotationally fixed manner.
On the impeller hub, moving blades are innovatively arranged in the circumferential direction, thus the impeller hub now .constitutes a part of a bladed flow passage and the maximum inlet area in the suction mouth of the radial compressor impeller increases because of this in favour of a higher suction volume flow.
The distribution of the moving blades of the wheel disc and of the moving blades of the impeller hub can coincide and thus form a continuous blade profile, a not-continuous
An impeller hub lies in the inlet region of a radial compressor and depending on the size of the impeller hub, the maximum inlet area of the medium to be compressed and thus of the suction volume flow from the leading edge limited.
The invention is based on the object of stating a radial compressor impeller which makes possible an enlarged inlet area at the start of the compression from the leading edge.
According to the invention, the object is solved by a radial compressor comprising a rotor that is rotatably mounted in a housing, on which a radial compressor impeller is arranged in a rotationally fixed manner. The radial compressor impeller comprises a wheel disc, on which moving blades are arranged in the circumferential direction and which have a leading edge and an trailing edge.
In the region in _front of the leading edge, the radial compressor impeller comprises an impeller hub which at an end of the rotor is arranged on the same in a concentric and rotationally fixed manner.
On the impeller hub, moving blades are innovatively arranged in the circumferential direction, thus the impeller hub now .constitutes a part of a bladed flow passage and the maximum inlet area in the suction mouth of the radial compressor impeller increases because of this in favour of a higher suction volume flow.
The distribution of the moving blades of the wheel disc and of the moving blades of the impeller hub can coincide and thus form a continuous blade profile, a not-continuous
3 blade profile with non-corresponding distribution of the moving blades is alternatively also possible.
It is also conceivable that the number --)f the moving blades of wheel disc and impeller hub differs.
It is additionally also conceivable that between the moving blades of the impeller hub and/or of the wheel disc, guide blades are arranged.
In principle, the impeller can be open or closed, an impeller hub that is closed or partly closed towards the circumferential direction is likewise conceivable.
Fig. 1: shows an extract of a cross section through the arrangement in a radial compressor according to the invention with open impeller hub, in particular in the region of the wheel disc and of the impeller hub.
Fig. 2: shows an extract of a cross section through the arrangement in a radial compressor according to the invention with closed wheel disc or closed impeller hub, in particular in the region of the wheel disc and of the impeller hub.
In Figure 2, the radial compressor according to the invention is shown in cross section in the form of an extract.
In a preferred embodiment, the radial compressor comprises a rotor 10, a housing which is not shown and a radial compressor impeller 11, which is arranged on the rotor 10 in a rotationally fixed manner.
The radial compressor impeller 11 comprises a wheel disc 12, on which in the circumferential direction moving blades
It is also conceivable that the number --)f the moving blades of wheel disc and impeller hub differs.
It is additionally also conceivable that between the moving blades of the impeller hub and/or of the wheel disc, guide blades are arranged.
In principle, the impeller can be open or closed, an impeller hub that is closed or partly closed towards the circumferential direction is likewise conceivable.
Fig. 1: shows an extract of a cross section through the arrangement in a radial compressor according to the invention with open impeller hub, in particular in the region of the wheel disc and of the impeller hub.
Fig. 2: shows an extract of a cross section through the arrangement in a radial compressor according to the invention with closed wheel disc or closed impeller hub, in particular in the region of the wheel disc and of the impeller hub.
In Figure 2, the radial compressor according to the invention is shown in cross section in the form of an extract.
In a preferred embodiment, the radial compressor comprises a rotor 10, a housing which is not shown and a radial compressor impeller 11, which is arranged on the rotor 10 in a rotationally fixed manner.
The radial compressor impeller 11 comprises a wheel disc 12, on which in the circumferential direction moving blades
4 13 are arranged, which comprise a leading edge 14 and an trailing edge 15.
In the region in front of the leading edge 14 of the moving blades 13 of the radial compressor impeller 11, the radial compressor comprises an impeller hub 16, which is arranged at the end of the rotor 10 and/or on the impeller 12 in a rotationally fixed manner on the same.
On the impeller hub 16, moving blades 17 are arranged in the circumferential direction which in turn comprise leading edges 18 and trailing edges 19.
In an alternative embodiment version the circumferential-side distribution of the moving blades 13 of the wheel disc 12 and of the moving blades 17 of the impeller hub 16 of the radial compressor according to the invention can coincide, so that substantially a continuous blade profile is formed.
In a further alternative, the circumferential-side distribution of the moving blades 13 of the wheel disc 12 and of the moving blades 17 of the impeller hub 16 of the radial compressor according to the invention can be distinct, so that no continuous blade profile is formed.
Optionally it is also conceivable that the number of the moving blades 17 of the impeller hub 16 is distinct from the number of the moving blades 13 of the wheel disc 12.
A further embodiment of the radial compressor according to the invention is obtained in that between the moving blades 13, 17 of the impeller hub 16 and/or of the wheel disc 12, guide blades which are not shown are arranged.
Further alternatives still materialise with regard to the configuration of the wheel disc 12, which on the one hand can be configured open or, on the other hand, the moving blades 13 can be provided with a shroud 21 (Figure 2).
Likewise, the impeller hub 16 can be designed open on the
In the region in front of the leading edge 14 of the moving blades 13 of the radial compressor impeller 11, the radial compressor comprises an impeller hub 16, which is arranged at the end of the rotor 10 and/or on the impeller 12 in a rotationally fixed manner on the same.
On the impeller hub 16, moving blades 17 are arranged in the circumferential direction which in turn comprise leading edges 18 and trailing edges 19.
In an alternative embodiment version the circumferential-side distribution of the moving blades 13 of the wheel disc 12 and of the moving blades 17 of the impeller hub 16 of the radial compressor according to the invention can coincide, so that substantially a continuous blade profile is formed.
In a further alternative, the circumferential-side distribution of the moving blades 13 of the wheel disc 12 and of the moving blades 17 of the impeller hub 16 of the radial compressor according to the invention can be distinct, so that no continuous blade profile is formed.
Optionally it is also conceivable that the number of the moving blades 17 of the impeller hub 16 is distinct from the number of the moving blades 13 of the wheel disc 12.
A further embodiment of the radial compressor according to the invention is obtained in that between the moving blades 13, 17 of the impeller hub 16 and/or of the wheel disc 12, guide blades which are not shown are arranged.
Further alternatives still materialise with regard to the configuration of the wheel disc 12, which on the one hand can be configured open or, on the other hand, the moving blades 13 can be provided with a shroud 21 (Figure 2).
Likewise, the impeller hub 16 can be designed open on the
5 one hand or the moving blades 17 be provided with a shroud 20 on the other hand. (Figure 2)
6 List of reference numbers:
Rotor 11 Radial compressor impeller 5 12 Wheel disc 13 Moving blades of the wheel disc 14 Leading edge of the moving blades of the wheel disc Trailing edge of the moving blades of the wheel disc 16 Impeller hub 10 17 .. Moving blades of the impeller hub 18 Leading edge of the moving blades of the impeller hub 19 Trailing edge of the moving blades of the impeller hub Shroud impeller hub 21 Shroud radial compressor impeller
Rotor 11 Radial compressor impeller 5 12 Wheel disc 13 Moving blades of the wheel disc 14 Leading edge of the moving blades of the wheel disc Trailing edge of the moving blades of the wheel disc 16 Impeller hub 10 17 .. Moving blades of the impeller hub 18 Leading edge of the moving blades of the impeller hub 19 Trailing edge of the moving blades of the impeller hub Shroud impeller hub 21 Shroud radial compressor impeller
Claims (9)
1. A radial compressor, comprising a rotor (10), a housing and a radial compressor impeller, which is arranged on the rotor (10) in a rotationally fixed manner, wherein the radial compressor impeller (11) comprises a wheel disc (12), on which in the circumferential direction moving blades (13) are arranged, which comprise a leading edge (14) and an trailing edge (15), wherein the radial compressor in the region in front of the leading edge (14) of the moving blades (13) of the radial compressor impeller (11) comprises an impeller hub (16), which is arranged at an edge of the rotor (10) and/or on the wheel disc (12) in a concentric and rotationally fixed manner on the same, characterized in that on the impeller hub (16) in the circumferential direction, moving blades (17) are arranged, which in turn comprise leading edges (18) and trailing edges (19).
2. The radial compressor according to Claim 1, characterized in that the circumferential-side distribution of the moving blades (13) of the wheel disc (12) and of the moving blades (17) of the impeller hub (16) coincides and thus a substantially continuous blade profile is formed.
3. The radial compressor according to Claim 1 or 2, characterized in that the circumferential-side distribution of the moving blades (13) of the wheel disc (12) and of the moving blades (17) of the impeller hub (16) is distinct and the blade profile is thus not formed continuously.
4. The radial compressor according to Claim 1 to 3, characterized in that the number of the moving blades (17) of the impeller hub (16) is distinct from the number of the moving blades (13) of the wheel disc (12).
5. The radial compressor according to Claim 3 or 4, characterized in that between the moving blades (13, 17) of the impeller hub (16) and/or of the wheel disc (12), guide blades are arranged.
6. The radial compressor according to Claim 1 to 5, characterized in that the wheel disc (12) is open.
7. The radial compressor according to Claim 1 to 5, characterized in that the wheel disc (12) is closed by a shroud (21).
8. The radial compressor according to Claim 1 to 5, characterized in that the impeller hub (16) is open.
9. The radial compressor according to Claim 1 to 5, characterized in that the impeller hub (16) is closed by a shroud (20).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016108762.9 | 2016-05-12 | ||
| DE102016108762.9A DE102016108762A1 (en) | 2016-05-12 | 2016-05-12 | centrifugal compressors |
| PCT/EP2017/056336 WO2017194229A1 (en) | 2016-05-12 | 2017-03-17 | Radial compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3023378A1 true CA3023378A1 (en) | 2017-11-16 |
Family
ID=58347383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3023378A Abandoned CA3023378A1 (en) | 2016-05-12 | 2017-03-17 | Radial compressor |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20190285080A1 (en) |
| EP (1) | EP3455501A1 (en) |
| JP (1) | JP2019515186A (en) |
| KR (1) | KR20190011746A (en) |
| CN (1) | CN109154304A (en) |
| CA (1) | CA3023378A1 (en) |
| DE (1) | DE102016108762A1 (en) |
| WO (1) | WO2017194229A1 (en) |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2384265A (en) * | 1945-09-04 | Centrifugal compressor entry vane | ||
| DE462853C (en) * | 1927-11-05 | 1928-07-19 | Lorenzen G M B H C | Runner for centrifugal compressor, the cover disk of which is pressed in the axial direction against the free edges of the blades machined from one piece with the runner disk |
| DE755198C (en) * | 1935-12-20 | 1952-11-24 | Versuchsanstalt Fuer Luftfahrt | Centrifugal machine impeller for high peripheral speeds |
| FR973616A (en) * | 1941-10-14 | 1951-02-13 | Rateau Soc | Single impeller compressor with high gauge capacity |
| US2398203A (en) * | 1943-11-20 | 1946-04-09 | Wright Aeronautical Corp | Centrifugal compressor entry vane |
| DE967838C (en) * | 1943-12-11 | 1957-12-19 | Sulzer Ag | Centrifugal compressor for high stage pressure ratios |
| CH253325A (en) * | 1946-06-01 | 1948-02-29 | Sulzer Ag | Turbo compressor. |
| GB619236A (en) * | 1946-09-25 | 1949-03-07 | Robert William Corbitt | Improvements in or relating to centrifugal compressors |
| US2482462A (en) * | 1946-11-09 | 1949-09-20 | Wright Aeronautical Corp | Centrifugal compressor construction |
| US2819012A (en) * | 1950-12-22 | 1958-01-07 | Gen Motors Corp | Centrifugal compressor |
| GB726973A (en) * | 1952-01-28 | 1955-03-23 | Kloeckner Humboldt Deutz Ag | A blade for the axial-flow inlet part of radial flow blowers or centrifugal pumps |
| FR1055017A (en) * | 1952-04-18 | 1954-02-16 | Neu Sa | Centrifugal compressor |
| US2941780A (en) * | 1954-06-17 | 1960-06-21 | Garrett Corp | Elastic fluid turbine and compressor wheels |
| US3305166A (en) * | 1965-02-18 | 1967-02-21 | Gen Motors Corp | Centrifugal compressor |
| FR1471604A (en) * | 1966-03-10 | 1967-03-03 | Neu Sa | Improvement in the construction of closed wheels of centrifugal compressors in light alloy |
| US3958905A (en) * | 1975-01-27 | 1976-05-25 | Deere & Company | Centrifugal compressor with indexed inducer section and pads for damping vibrations therein |
| DE2527498A1 (en) * | 1975-06-20 | 1976-12-30 | Daimler Benz Ag | RADIAL TURBINE WHEEL FOR A GAS TURBINE |
| DE2621201C3 (en) * | 1976-05-13 | 1979-09-27 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Impeller for a turbomachine |
| JPH07103874B2 (en) | 1990-03-14 | 1995-11-08 | 株式会社日立製作所 | Mixed flow compressor |
| DE19513508A1 (en) * | 1995-04-10 | 1996-10-17 | Abb Research Ltd | compressor |
| US6499953B1 (en) * | 2000-09-29 | 2002-12-31 | Pratt & Whitney Canada Corp. | Dual flow impeller |
| US6386839B1 (en) * | 2000-12-28 | 2002-05-14 | Wen-Hao Chuang | High performance radiator fan |
| JP4381010B2 (en) * | 2003-03-13 | 2009-12-09 | トーステ株式会社 | Centrifugal pump |
| DE102006056820A1 (en) * | 2006-03-01 | 2007-09-13 | Institut für Luft- und Kältetechnik gGmbH | Seawater desalination plant comprises mechanical flow compressor made of radial carbon-fiber-reinforced wheel, a wheel-attachment and housing comprising wheels |
| DE102007055616A1 (en) * | 2007-11-20 | 2009-05-28 | Mann + Hummel Gmbh | Compressor wheel for e.g. turbocharger, of motor vehicle, has mold parting line between upstream wheel part and downstream wheel part, lying perpendicular to rotation axis, and running through part of compressor blade |
| US8147208B2 (en) * | 2009-02-25 | 2012-04-03 | Hamilton Sundstrand Corporation | Axially segmented impeller |
| US20120272663A1 (en) * | 2011-04-28 | 2012-11-01 | General Electric Company | Centrifugal compressor assembly with stator vane row |
| US20130004316A1 (en) * | 2011-06-28 | 2013-01-03 | Honeywell International Inc. | Multi-piece centrifugal impellers and methods for the manufacture thereof |
| CN103890408B (en) * | 2011-10-17 | 2016-08-17 | 本田技研工业株式会社 | The manufacture method of impeller |
| US8920128B2 (en) * | 2011-10-19 | 2014-12-30 | Honeywell International Inc. | Gas turbine engine cooling systems having hub-bleed impellers and methods for the production thereof |
| JP6096308B2 (en) * | 2013-09-19 | 2017-03-15 | 日立オートモティブシステムズ株式会社 | Water pump |
-
2016
- 2016-05-12 DE DE102016108762.9A patent/DE102016108762A1/en not_active Withdrawn
-
2017
- 2017-03-17 WO PCT/EP2017/056336 patent/WO2017194229A1/en unknown
- 2017-03-17 US US16/300,635 patent/US20190285080A1/en not_active Abandoned
- 2017-03-17 CN CN201780029365.9A patent/CN109154304A/en active Pending
- 2017-03-17 EP EP17711178.8A patent/EP3455501A1/en not_active Withdrawn
- 2017-03-17 JP JP2018559284A patent/JP2019515186A/en active Pending
- 2017-03-17 CA CA3023378A patent/CA3023378A1/en not_active Abandoned
- 2017-03-17 KR KR1020187035864A patent/KR20190011746A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019515186A (en) | 2019-06-06 |
| CN109154304A (en) | 2019-01-04 |
| DE102016108762A1 (en) | 2017-11-16 |
| WO2017194229A1 (en) | 2017-11-16 |
| US20190285080A1 (en) | 2019-09-19 |
| EP3455501A1 (en) | 2019-03-20 |
| KR20190011746A (en) | 2019-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20181106 |
|
| FZDE | Discontinued |
Effective date: 20210831 |