WO2004074642A1 - Turbine having variable throat - Google Patents
Turbine having variable throat Download PDFInfo
- Publication number
- WO2004074642A1 WO2004074642A1 PCT/IB2003/000576 IB0300576W WO2004074642A1 WO 2004074642 A1 WO2004074642 A1 WO 2004074642A1 IB 0300576 W IB0300576 W IB 0300576W WO 2004074642 A1 WO2004074642 A1 WO 2004074642A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turbine
- turbine wheel
- turbocharger
- throat
- wheel
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/143—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path the shiftable member being a wall, or part thereof of a radial diffuser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
- F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
- F01D5/048—Form or construction
-
- 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
Definitions
- the present invention generally relates to a turbine for use in a turbocharger, and in particular a turbine having a variable throat for use in a turbocharger.
- a conventional, turbine of a turbocharger is disclosed in JP-A- 60-006020.
- the turbine comprises a turbine wheel and a turbine housing forming a passage for guiding a fluid flow to the turbine wheel.
- a flap is pivotally arranged so as to adjust a smallest cross section of the fluid flow.
- the smallest cross section of the fluid flow is also called a throat area.
- An additional actuator is required for pivoting the flap.
- a turbine for a turbocharger comprises a turbine wheel and a turbine housing forming a passage for guiding a fluid flow to the turbine wheel, said passage comprising a variable throat for adjusting a throat area of the fluid flow, wherein the variable throat is a annular member surrounding the turbine wheel and being movable in the axial direction of the turbine wheel.
- the turbine wheel comprises turbine blades extending the axial direction of the turbine wheel with different lengths.
- the turbine wheel comprises a plurality of first turbine blades having a first length associated with a first throat area, and a plurality of second turbine blades having a second length associated with a second throat area, wherein the first length being different from the second length.
- the first and second turbine blades are alternately arranged in the circumferential direction of the turbine wheel.
- the turbine further comprises a nozzle disposed within the passage, said nozzle comprising stationary or movable vanes.
- the annular member is moved in accordance to an operational state of the turbocharger.
- the throat area increases if a rotational speed of the turbocharger increases.
- Fig. 1 shows a turbine at high rotational speed according to a first embodiment of the present invention
- Fig. 2 shows another view of the turbine at low rotational speed according to the first embodiment
- Fig. 3 shows a turbine wheel of a turbocharger according to a second embodiment of the present invention.
- a first embodiment of a turbine according to the present invention is described with reference to Fig. 1 and Fig. 2.
- a turbine 1 according to the present invention is usually to be incorporated in a turbocharger for a vehicle engine, and the turbine 1 is driven by an exhaust gas emitted from the engine (not shown) .
- Such a turbine 1 is constituted by a turbine wheel 2 mounted at one end of a rotatable shaft 3, while a compressor impeller 4 is mounted at the other end of the rotatable shaft 3.
- the turbine wheel 2 is accommodated in a turbine housing 5 which forms a passage 6 or a volute for guiding an exhaust gas flow from the engine to the turbine wheel 2.
- variable throat provides a smallest cross section of the fluid flow, i.e. a so-called throat area 8.
- the variable throat provides a variable "bottleneck” for limiting a maximum exhaust gas flow to pass from the volute to the turbine wheel 2.
- the throat area 8 provides a maximum exhaust gas flow which matches to an operational state of the turbine.
- variable throat of the turbine according to the invention is always defined by an annular member 7 or a hollow shaft (a hollow piston) surrounding the turbine wheel 2, the annular member 7 being movable in the axial direction of the turbine wheel 2.
- an tubular nozzle is arranged in face of the annular member 7.
- the nozzle is constituted by an tubular arrangement of vanes 9 for defining a plurality of nozzle passages.
- the vanes 9 are stationary, but it is also possible to adopt movable vanes.
- the movement of the annular member 7 in the axial direction of the turbine wheel 2 is effected by an actuator 10 which is, preferably, a pneumatic actuator 10.
- an actuator 10 which is, preferably, a pneumatic actuator 10.
- the annular member 7 is moved to or from the vanes 9 of the tubular nozzle.
- the annular member 7 is operated by means for operating the annular member 7 in such a manner that the annular member 7 is moved away from the vanes 9 as an operational rotational speed of the turbine wheel 2 increases, and that the annular member 7 is moved to the vanes 9 as the operational rotational speed of the turbine wheel 2 decreases.
- the annular member 7 is positioned far away from the vanes 9 so as to enlarge the throat area 8.
- the flow capacity is increased such that an engine backpressure in the high rotational speed range of the turbine 1 is reduced.
- the annular member 7 is positioned closer to the vanes 9 so as to reduce the throat area 8.
- the turbine 1 exhibits a improved efficiency even in the low rotational speed range of the turbocharger.
- the first embodiment according to the present invention achieves a large boost in the low rotational speed range due to the reduced throat area 8 when the annular member 7 is in a position closest to the vanes 9.
- a turbine wheel 2A of a turbine 1 according to a second embodiment of the present invention is shown in Fig. 3. The remaining parts are the same as in Figs. 1 and 2.
- the turbine wheel 2A comprises a boss 23, a plurality of first blades 21 and a plurality of second blades 22, wherein the first and second blades 21, 22 are both flush at one lateral side of the boss 23 (the left side according to Fig. 3) .
- the first blades 21 each have a length in the axial direction of the boss 23 which is smaller than the length of the second blades 22 in the axial direction of the boss 23. Furthermore, the first blades 21 are alternately arranged with the second blades 22.
- the turbine wheel 2A comprises twice as much blades as on the right side of the turbine wheel 2A according to Fig. 3.
- the left side of the turbine wheel 2A according to Fig. 3 is optimized with respect to the reduced throat area 8 when the annular member 7 is positioned closer to the vanes 9, while the right side of the turbine wheel 2A according to Fig. 3 is optimized with respect to the enlarged throat area 8 when the annular member 7 is positioned far away from the vanes 9.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003206002A AU2003206002A1 (en) | 2003-02-19 | 2003-02-19 | Turbine having variable throat |
US10/546,384 US8608433B2 (en) | 2003-02-19 | 2003-02-19 | Turbine having variable throat |
PCT/IB2003/000576 WO2004074642A1 (en) | 2003-02-19 | 2003-02-19 | Turbine having variable throat |
EP03702885.9A EP1595059B1 (en) | 2003-02-19 | 2003-02-19 | Turbine having a variable throat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2003/000576 WO2004074642A1 (en) | 2003-02-19 | 2003-02-19 | Turbine having variable throat |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004074642A1 true WO2004074642A1 (en) | 2004-09-02 |
Family
ID=32894008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/000576 WO2004074642A1 (en) | 2003-02-19 | 2003-02-19 | Turbine having variable throat |
Country Status (4)
Country | Link |
---|---|
US (1) | US8608433B2 (en) |
EP (1) | EP1595059B1 (en) |
AU (1) | AU2003206002A1 (en) |
WO (1) | WO2004074642A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2025897A2 (en) | 2007-08-10 | 2009-02-18 | Honeywell International Inc. | Turbine assembly with semi-divided nozzle and half-collar piston |
EP2067962A2 (en) * | 2007-12-05 | 2009-06-10 | Bosch Mahle Turbo Systems GmbH & Co. KG | Turbine for a waste gas turbocharger in a combustion engine |
EP2105583A2 (en) | 2008-03-28 | 2009-09-30 | Honeywell International Inc. | Turbocharger with sliding piston, and having vanes and leakage dams |
US20110099998A1 (en) * | 2009-11-03 | 2011-05-05 | Nicolas Serres | Turbine assembly for a turbocharger, having two asymmetric volutes that are sequentially activated, and associated method |
WO2015179353A1 (en) * | 2014-05-20 | 2015-11-26 | Borgwarner Inc. | Exhaust-gas turbocharger |
CN108930586A (en) * | 2018-06-29 | 2018-12-04 | 大连海事大学 | A kind of variable geometry turbine and nozzle ring arrangement |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009070599A1 (en) * | 2007-11-27 | 2009-06-04 | Emerson Electric Co. | Bi-directional cooling fan |
JP5308319B2 (en) * | 2009-12-02 | 2013-10-09 | 三菱重工業株式会社 | Centrifugal compressor impeller |
JP2013535615A (en) * | 2010-08-05 | 2013-09-12 | ボーグワーナー インコーポレーテッド | Exhaust gas turbocharger |
WO2014081603A1 (en) * | 2012-11-26 | 2014-05-30 | Borgwarner Inc. | Compressor wheel of a radial compressor of an exhaust-gas turbocharger |
CN107109943B (en) * | 2015-03-26 | 2019-06-04 | 三菱重工发动机和增压器株式会社 | Turbine moving blade and variable capacity turbine |
US11028856B2 (en) * | 2016-05-09 | 2021-06-08 | Ihi Corporation | Centrifugal compressor impeller |
EP3508685B1 (en) * | 2017-01-16 | 2020-10-07 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Turbine wheel, turbine, and turbocharger |
DE102017108057A1 (en) * | 2017-04-13 | 2018-10-18 | Abb Turbo Systems Ag | NOZZLE RING FOR AN ABGASTURBOLADER |
US10487741B2 (en) * | 2018-02-27 | 2019-11-26 | GM Global Technology Operations LLC | Turbo vane and compressor for turbocharger |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4586336A (en) * | 1982-04-29 | 1986-05-06 | Bbc Brown, Boveri & Co., Ltd. | Exhaust gas turbocharger with adjustable slide ring |
US4850802A (en) * | 1983-04-21 | 1989-07-25 | Allied-Signal Inc. | Composite compressor wheel for turbochargers |
DE3908285C1 (en) * | 1989-03-14 | 1990-06-07 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | Turbine wheel of an exhaust turbocharger for an internal combustion engine with radial and/or mixed-flow gas feed |
DE3941399C1 (en) * | 1989-12-15 | 1991-01-03 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | Turbine outlet nozzle control - consists of slider moved by lever pivoted in casing |
US5214920A (en) * | 1990-11-27 | 1993-06-01 | Leavesley Malcolm G | Turbocharger apparatus |
EP0571205A1 (en) * | 1992-05-21 | 1993-11-24 | Alliedsignal Limited | Variable exhaust driven turbochargers |
WO2001053679A1 (en) * | 2000-01-14 | 2001-07-26 | Alliedsignal Turbo S.A. | Turbocharger with sliding blades having combined dynamic surfaces and heat screen and uncoupled axial actuating device |
WO2002006636A1 (en) * | 2000-07-19 | 2002-01-24 | Honeywell Garrett Sa | Sliding vane turbocharger with graduated vanes |
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DE1503520A1 (en) * | 1965-09-22 | 1970-02-26 | Daimler Benz Ag | Impeller of axial or centrifugal compressors |
JPS5644495A (en) * | 1979-09-20 | 1981-04-23 | Nissan Motor Co Ltd | Impeller for centrifugal compressor |
EP0072177B1 (en) * | 1981-08-07 | 1987-01-07 | Holset Engineering Company Limited | Impeller for centrifugal compressor |
US4502837A (en) * | 1982-09-30 | 1985-03-05 | General Electric Company | Multi stage centrifugal impeller |
US4589822A (en) * | 1984-07-09 | 1986-05-20 | Mici Limited Partnership Iv | Centrifugal blood pump with impeller |
US4776168A (en) * | 1987-05-21 | 1988-10-11 | Woollenweber William E | Variable geometry turbocharger turbine |
US5025629A (en) * | 1989-03-20 | 1991-06-25 | Woollenweber William E | High pressure ratio turbocharger |
DE19615237C2 (en) * | 1996-04-18 | 1999-10-28 | Daimler Chrysler Ag | Exhaust gas turbocharger for an internal combustion engine |
DE19651498C1 (en) * | 1996-12-11 | 1998-04-16 | Daimler Benz Ag | Exhaust turbocharger for IC engine |
DE19816645B4 (en) * | 1998-04-15 | 2005-12-01 | Daimlerchrysler Ag | Turbocharger turbine |
DE19838754C1 (en) * | 1998-08-26 | 2000-03-09 | Daimler Chrysler Ag | Exhaust gas turbocharger for an internal combustion engine |
DE60032523T2 (en) * | 2000-11-30 | 2007-11-22 | Honeywell Garrett S.A. | Exhaust gas turbocharger with variable geometry and a ring cutter |
US6790016B2 (en) * | 2002-02-04 | 2004-09-14 | Ching-Yuan Chiang | Motor and its blade unit |
-
2003
- 2003-02-19 US US10/546,384 patent/US8608433B2/en not_active Expired - Fee Related
- 2003-02-19 WO PCT/IB2003/000576 patent/WO2004074642A1/en not_active Application Discontinuation
- 2003-02-19 EP EP03702885.9A patent/EP1595059B1/en not_active Expired - Fee Related
- 2003-02-19 AU AU2003206002A patent/AU2003206002A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4586336A (en) * | 1982-04-29 | 1986-05-06 | Bbc Brown, Boveri & Co., Ltd. | Exhaust gas turbocharger with adjustable slide ring |
US4850802A (en) * | 1983-04-21 | 1989-07-25 | Allied-Signal Inc. | Composite compressor wheel for turbochargers |
DE3908285C1 (en) * | 1989-03-14 | 1990-06-07 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | Turbine wheel of an exhaust turbocharger for an internal combustion engine with radial and/or mixed-flow gas feed |
DE3941399C1 (en) * | 1989-12-15 | 1991-01-03 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | Turbine outlet nozzle control - consists of slider moved by lever pivoted in casing |
US5214920A (en) * | 1990-11-27 | 1993-06-01 | Leavesley Malcolm G | Turbocharger apparatus |
EP0571205A1 (en) * | 1992-05-21 | 1993-11-24 | Alliedsignal Limited | Variable exhaust driven turbochargers |
WO2001053679A1 (en) * | 2000-01-14 | 2001-07-26 | Alliedsignal Turbo S.A. | Turbocharger with sliding blades having combined dynamic surfaces and heat screen and uncoupled axial actuating device |
WO2002006636A1 (en) * | 2000-07-19 | 2002-01-24 | Honeywell Garrett Sa | Sliding vane turbocharger with graduated vanes |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2025897A2 (en) | 2007-08-10 | 2009-02-18 | Honeywell International Inc. | Turbine assembly with semi-divided nozzle and half-collar piston |
EP2067962A3 (en) * | 2007-12-05 | 2011-06-29 | Bosch Mahle Turbo Systems GmbH & Co. KG | Turbine for a waste gas turbocharger in a combustion engine |
EP2067962A2 (en) * | 2007-12-05 | 2009-06-10 | Bosch Mahle Turbo Systems GmbH & Co. KG | Turbine for a waste gas turbocharger in a combustion engine |
EP2105583A2 (en) | 2008-03-28 | 2009-09-30 | Honeywell International Inc. | Turbocharger with sliding piston, and having vanes and leakage dams |
US20130195639A1 (en) * | 2009-11-03 | 2013-08-01 | Honeywell International Inc. | Turbine Assembly For a Turbocharger, Having Two Asymmetric Volutes That Are Sequentially Activated, And Associated Method |
US8424304B2 (en) * | 2009-11-03 | 2013-04-23 | Honeywell International Inc. | Turbine assembly for a turbocharger, having two asymmetric volutes that are sequentially activated, and associated method |
US20110099998A1 (en) * | 2009-11-03 | 2011-05-05 | Nicolas Serres | Turbine assembly for a turbocharger, having two asymmetric volutes that are sequentially activated, and associated method |
US8615996B2 (en) | 2009-11-03 | 2013-12-31 | Honeywell International Inc. | Turbine assembly for a turbocharger, having two asymmetric volutes that are sequentially activated, and associated method |
WO2015179353A1 (en) * | 2014-05-20 | 2015-11-26 | Borgwarner Inc. | Exhaust-gas turbocharger |
KR20170007346A (en) * | 2014-05-20 | 2017-01-18 | 보르그워너 인코퍼레이티드 | Exhaust-gas turbocharger |
CN106460520A (en) * | 2014-05-20 | 2017-02-22 | 博格华纳公司 | Exhaust-gas turbocharger |
US10280833B2 (en) | 2014-05-20 | 2019-05-07 | Borgwarner Inc. | Exhaust-gas turbocharger |
KR102301070B1 (en) | 2014-05-20 | 2021-09-10 | 보르그워너 인코퍼레이티드 | Exhaust-gas turbocharger |
CN108930586A (en) * | 2018-06-29 | 2018-12-04 | 大连海事大学 | A kind of variable geometry turbine and nozzle ring arrangement |
Also Published As
Publication number | Publication date |
---|---|
EP1595059B1 (en) | 2018-04-25 |
AU2003206002A1 (en) | 2004-09-09 |
US20070031261A1 (en) | 2007-02-08 |
US8608433B2 (en) | 2013-12-17 |
EP1595059A1 (en) | 2005-11-16 |
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