WO2004035994A1 - Variable nozzle device for a turbocharger and method for operating the same - Google Patents
Variable nozzle device for a turbocharger and method for operating the same Download PDFInfo
- Publication number
- WO2004035994A1 WO2004035994A1 PCT/IB2002/003834 IB0203834W WO2004035994A1 WO 2004035994 A1 WO2004035994 A1 WO 2004035994A1 IB 0203834 W IB0203834 W IB 0203834W WO 2004035994 A1 WO2004035994 A1 WO 2004035994A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vanes
- wall
- nozzle
- turbocharger
- nozzle device
- 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
- 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
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
-
- 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 variable nozzle device for a turbocharger, and also to a method for operating a variable nozzle device for a turbocharger.
- a turbocharger having a conventional variable nozzle device is known from US-4 643 640.
- the nozzle device comprises an annular nozzle between an inner wall and an outer wall, and an annular arrangement of adjustable vanes interposed in the nozzle for defining a plurality of nozzle passages, wherein the nozzle is adjustable by controllably pivoting the vanes between the inner and outer walls.
- the nozzle passages vary the gas flow to the turbine, i.e. the gas flow area of the annular nozzle.
- the annular nozzle is formed by a nozzle ring which forms the inner wall, a shroud which forms the outer wall, and the pivotable vanes.
- the size of such clearance is usually limited to both ensure performance level and prevent the vanes from sticking to the shroud.
- variable nozzle device having the features of claim 1 or 10
- method of operating a variable nozzle device having the features of claim 7.
- the invention is further developed by the dependent claims.
- Fig. 1 shows a partial cross-section of a nozzle device for a turbocharger according to a first embodiment of the present invention
- Figs. 2A and 2B show a cross-sectional view and a plan view of the nozzle device according to the first embodiment of the present invention, respectively, wherein the nozzle is fully closed;
- Figs. 3A and 3B show a cross-sectional view and a plan view of the nozzle device for a turbocharger according to the first embodiment of the present invention, respectively, wherein the nozzle is half open;
- Figs. 4A and 4B show a cross-sectional view and a plan view of the nozzle device for a turbocharger according to the first embodiment of the present invention, respectively, wherein the nozzle is fully opened;
- Fig. 5 shows a view of a nozzle device including a vane pivoting mechanism for a turbocharger according to a second embodiment of the present invention.
- Fig. 6 shows another view of the vane pivoting mechanism depicted in Fig. 5.
- a first embodiment of a nozzle device 1 according to the present invention is described with reference to Fig. 1.
- the nozzle device 1 shown in Fig. 1 is to be incorporated in a turbocharger.
- a conventional turbocharger comprises an exhaust gas driven turbine 2 mounted to a rotatable shaft 12 having a compressor impeller thereon, a turbine housing 19 forming a volute therein for directing an exhaust gas flow from an engine (not shown) to the turbine 2 through an annular nozzle 3.
- the annular nozzle 3 is defined between an inner and an outer wall 11, 10.
- the nozzle 3 is adjustable by controllably adjusting the vanes 4 between the inner and outer walls 11, 10 so as to vary the geometry of the nozzle passages.
- the vanes 4 are adjusted by means of a vane pivoting mechanism which is described with reference to the figures.
- the vane pivoting mechanism consists of a vane pin 15, a vane arm 17, a nozzle ring 16 , an unisson ring 14 and an actuating member 18.
- The- vane 4, the vane pin 15...and the vane arm 17 are .rigidly connected to each other.
- the nozzle ring 16 is stationary, while the main arm 18 is pivotable with respect to the unisson ring 14.
- the inner wall 11 of the nozzle ring 16 is formed by an annular ring-shaped plate.
- the annular ring-shaped plate acts like a heat shield.
- the inner wall 11 may also be formed by any part of the turbine housing.
- the nozzle device 1 comprises a hollow shaft 5 (a hollow piston) surrounding the turbine 2 and defining the outer wall 10 of the annular nozzle 3, the hollow shaft 5 being axially movable to and from the vanes 4.
- the hollow shaft 5 is used to cancel the functional gap (right and left side of the vane 4) and increase the turbine stage efficiency all along the engine range until pivoting vane 4 are fully open, then the sliding piston 5 starts to open from the vane top, increasing the passage width and turbine flow capacity, the hollow shaft 5 will be axially moved away from the vanes 4 so as to prevent the vanes 4 from sticking to the outer wall 10 defined by the hollow shaft 5.
- commonly known elements once required in the prior art for adjusting the clearance to approximately zero can be omitted.
- the movement of the hollow shaft 5 is effected by an actuator 6 which is, for instance, a pneumatic actuator.
- the hollow shaft_5 comprises an axial slit (not shown) forming a bypass for exhaust gas which does not pass through the annular nozzle 3.
- the nozzle device 1 is operated by means for operating the hollow shaft 5 in such a manner that the hollow shaft 5 is moved away from the vanes 4 as an operational rotational speed of the turbocharger increases, and that the hollow shaft 5 is moved to the vanes 4 as the operational rotational speed of the turbocharger decreases.
- nozzle device 1 The operation of the nozzle device 1 will be explained below in more detail with reference to the Figs. 2A-2B, 3A-3B and 4A-4B.
- the nozzle passages are opened by the vanes 4 by pivoting the vanes 4, but the hollow shaft 5 is still kept in the position close to the vanes 4. Thereby, the nozzle is half- opened.
- the nozzle passages are further kept open by the vanes 4.
- the hollow shaft 5 is moved away from the vanes 4. Thereby, the vanes 4 are prevented from sticking on the outer wall 10 defined by the hollow shaft 5.
- the flow capacity is increased such that an engine backpressure in the high, rotational speed range., of the turbine 2 is reduced.
- the flow capacity is further increased such that the engine backpressure in the high rotational speed range of the turbine 2 is further reduced.
- the timing of moving the hollow shaft 5 and the timing of pivoting the vanes 4 may be tuned so as to achieve an optimum performance of the turbocharger, i.e. an optimum turbine efficiency, a large boost and a low backpressure.
- an optimum performance of the turbocharger i.e. an optimum turbine efficiency, a large boost and a low backpressure.
- the first embodiment can be modified in that, instead of the hollow shaft 5, any means can be provided which comprises a variable outer wall for varying the gas flow to the turbine.
- the embodiment according to the present invention achieves a large boost in the low rotational speed range due to the cancelled clearance (also called “zero gap") between the vanes 4 and the outer wall 10 defined by the hollow shaft 5, when the hollow shaft 5 is in a position closest to the vanes 4.
- the backpressure is reduced by moving the hollow shaft 5 away from the vanes 4.
- the backpressure may be further decreased by the bypass for exhaust gas, which does not pass through the annular nozzle 3.
- a second embodiment according to the present invention shows a nozzle device including a vane pivoting mechanism as it is described with reference to Figs. 5 and 6.
- the vane pivoting mechanism for a variable nozzle device 1 for a turbocharger comprises at least one vane 4 attached to a gear 7 and a gear device 8 being in engagement with the gear 7 so that the vane 4 is pivoted when the gear device 8 is moved relatively to the gear.
- the vanes 4 are connected via a rod (not shown) with the respective gear wheels 7.
- the rods pass through the inner wall 11 such that they are rotatably supported by the inner wall 11.
- the vanes 4 there are two alternative modes. In the first mode, the inner wall 11 is rotated while the gear ring 8 is fixed. In the second mode, the gear ring 8 is rotated while the inner wall 11 is fixed.
- gear wheel 7 any element having a gear or a toothing can be provided. It is further conceivable that the gears 7 and the ring 8 are in a frictional engagement instead of a meshing engagement.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
- Control Of Turbines (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004544505A JP2005539177A (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for turbocharger and method of operating the same |
US10/528,643 US7497654B2 (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for a turbocharger and method for operating the same |
AU2002334285A AU2002334285A1 (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for a turbocharger and method for operating the same |
DE60229006T DE60229006D1 (en) | 2002-09-18 | 2002-09-18 | DEVICE WITH A VARIOUS NOZZLE FOR A TURBOCHARGER AND OPERATING METHOD THEREFOR |
AT02808008T ATE408749T1 (en) | 2002-09-18 | 2002-09-18 | VARIABLE NOZZLE DEVICE FOR A TURBOCHARGER AND OPERATING METHOD THEREFOR |
PCT/IB2002/003834 WO2004035994A1 (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for a turbocharger and method for operating the same |
EP02808008A EP1549826B1 (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for a turbocharger and method for operating the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2002/003834 WO2004035994A1 (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for a turbocharger and method for operating the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004035994A1 true WO2004035994A1 (en) | 2004-04-29 |
Family
ID=32104587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2002/003834 WO2004035994A1 (en) | 2002-09-18 | 2002-09-18 | Variable nozzle device for a turbocharger and method for operating the same |
Country Status (7)
Country | Link |
---|---|
US (1) | US7497654B2 (en) |
EP (1) | EP1549826B1 (en) |
JP (1) | JP2005539177A (en) |
AT (1) | ATE408749T1 (en) |
AU (1) | AU2002334285A1 (en) |
DE (1) | DE60229006D1 (en) |
WO (1) | WO2004035994A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005059317A1 (en) * | 2003-12-10 | 2005-06-30 | Honeywell International Inc. | Variable nozzle device for a turbocharger |
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 |
WO2010069301A3 (en) * | 2008-12-18 | 2011-04-14 | Tti Turbo Technik Innovation Gmbh | Fully variable turbine for exhaust gas turbocharger |
CN102529350A (en) * | 2010-11-24 | 2012-07-04 | 精工爱普生株式会社 | Ink jet printing apparatus and method of manufacturing printed goods using ink jet printing apparatus |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7207176B2 (en) * | 2002-11-19 | 2007-04-24 | Cummins Inc. | Method of controlling the exhaust gas temperature for after-treatment systems on a diesel engine using a variable geometry turbine |
JP2008215083A (en) * | 2007-02-28 | 2008-09-18 | Mitsubishi Heavy Ind Ltd | Mounting structure for variable nozzle mechanism in variable geometry exhaust turbocharger |
US7762067B2 (en) * | 2007-08-21 | 2010-07-27 | Honeywell International, Inc. | Turbocharger with sliding piston assembly |
GB2461720B (en) * | 2008-07-10 | 2012-09-05 | Cummins Turbo Tech Ltd | A variable geometry turbine |
US8118545B2 (en) * | 2008-10-01 | 2012-02-21 | Kansas State University Research Foundation | Variable geometry turbocharger |
WO2012018554A2 (en) * | 2010-08-05 | 2012-02-09 | Borgwarner Inc. | Exhaust-gas turbocharger |
US9932888B2 (en) | 2016-03-24 | 2018-04-03 | Borgwarner Inc. | Variable geometry turbocharger |
US20180058247A1 (en) * | 2016-08-23 | 2018-03-01 | Borgwarner Inc. | Vane actuator and method of making and using the same |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB138592A (en) * | 1919-02-05 | 1920-05-06 | Bbc Brown Boveri & Cie | Improved apparatus for varying the adjustment of the guide blades in centrifugal compressors |
US2976013A (en) * | 1955-08-17 | 1961-03-21 | Fairchild Engine & Airplane | Turbine construction |
EP0034915A1 (en) * | 1980-02-22 | 1981-09-02 | Holset Engineering Company Limited | Radially inward flow turbine |
US4557665A (en) * | 1982-05-28 | 1985-12-10 | Helset Engineering Company Limited | Variable inlet area turbine |
US4890977A (en) * | 1988-12-23 | 1990-01-02 | Pratt & Whitney Canada, Inc. | Variable inlet guide vane mechanism |
US5214920A (en) * | 1990-11-27 | 1993-06-01 | Leavesley Malcolm G | Turbocharger apparatus |
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 |
EP1128025A2 (en) * | 2000-02-25 | 2001-08-29 | Man Nutzfahrzeuge Ag | Radial turbomachine |
US6314736B1 (en) * | 1999-12-21 | 2001-11-13 | Daimlerchrysler Ag | Exhaust gas turbine of a turbocharger for an internal combustion engine |
WO2002044527A1 (en) * | 2000-11-30 | 2002-06-06 | Honeywell Garrett Sa | Variable geometry turbocharger with sliding piston |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2341974A (en) * | 1941-05-14 | 1944-02-15 | Wright Aeronautical Corp | Supercharger control |
-
2002
- 2002-09-18 AT AT02808008T patent/ATE408749T1/en not_active IP Right Cessation
- 2002-09-18 EP EP02808008A patent/EP1549826B1/en not_active Expired - Lifetime
- 2002-09-18 US US10/528,643 patent/US7497654B2/en not_active Expired - Fee Related
- 2002-09-18 JP JP2004544505A patent/JP2005539177A/en active Pending
- 2002-09-18 WO PCT/IB2002/003834 patent/WO2004035994A1/en active IP Right Grant
- 2002-09-18 DE DE60229006T patent/DE60229006D1/en not_active Expired - Lifetime
- 2002-09-18 AU AU2002334285A patent/AU2002334285A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB138592A (en) * | 1919-02-05 | 1920-05-06 | Bbc Brown Boveri & Cie | Improved apparatus for varying the adjustment of the guide blades in centrifugal compressors |
US2976013A (en) * | 1955-08-17 | 1961-03-21 | Fairchild Engine & Airplane | Turbine construction |
EP0034915A1 (en) * | 1980-02-22 | 1981-09-02 | Holset Engineering Company Limited | Radially inward flow turbine |
US4557665A (en) * | 1982-05-28 | 1985-12-10 | Helset Engineering Company Limited | Variable inlet area turbine |
US4890977A (en) * | 1988-12-23 | 1990-01-02 | Pratt & Whitney Canada, Inc. | Variable inlet guide vane mechanism |
US5214920A (en) * | 1990-11-27 | 1993-06-01 | Leavesley Malcolm G | Turbocharger apparatus |
US6314736B1 (en) * | 1999-12-21 | 2001-11-13 | Daimlerchrysler Ag | Exhaust gas turbine of a turbocharger for an internal combustion engine |
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 |
EP1128025A2 (en) * | 2000-02-25 | 2001-08-29 | Man Nutzfahrzeuge Ag | Radial turbomachine |
WO2002044527A1 (en) * | 2000-11-30 | 2002-06-06 | Honeywell Garrett Sa | Variable geometry turbocharger with sliding piston |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005059317A1 (en) * | 2003-12-10 | 2005-06-30 | Honeywell International Inc. | Variable nozzle device for a turbocharger |
US7581394B2 (en) * | 2003-12-10 | 2009-09-01 | Honeywell International Inc. | Variable nozzle device for a turbocharger |
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 |
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 |
WO2010069301A3 (en) * | 2008-12-18 | 2011-04-14 | Tti Turbo Technik Innovation Gmbh | Fully variable turbine for exhaust gas turbocharger |
CN102529350A (en) * | 2010-11-24 | 2012-07-04 | 精工爱普生株式会社 | Ink jet printing apparatus and method of manufacturing printed goods using ink jet printing apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2005539177A (en) | 2005-12-22 |
DE60229006D1 (en) | 2008-10-30 |
EP1549826A1 (en) | 2005-07-06 |
ATE408749T1 (en) | 2008-10-15 |
EP1549826B1 (en) | 2008-09-17 |
US20060216141A1 (en) | 2006-09-28 |
US7497654B2 (en) | 2009-03-03 |
AU2002334285A1 (en) | 2004-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4776168A (en) | Variable geometry turbocharger turbine | |
US8191368B2 (en) | Variable geometry turbine with wastegate | |
US5307624A (en) | Variable area bypass valve assembly | |
JP3725287B2 (en) | Variable capacity turbocharger | |
JP4256196B2 (en) | Variable form turbine | |
EP1866534B1 (en) | Variable flow turbocharger | |
US20050260067A1 (en) | Variable geometry turbine | |
EP1549826B1 (en) | Variable nozzle device for a turbocharger and method for operating the same | |
KR20110098761A (en) | Simplified variable geometry turbocharger with vane rings | |
US6932565B2 (en) | Turbine | |
WO2009030914A2 (en) | Multi-stage turbocharger system | |
EP2035673B1 (en) | Variable stator blade mechanism for turbochargers | |
US5048286A (en) | Bypass valve door | |
WO2000020726A1 (en) | Actuating mechanism for sliding vane variable geometry turbine | |
WO2007058649A1 (en) | Turbocharger with stepped two-stage vane nozzle | |
US20050268610A1 (en) | Exhaust gas turbocharger for an internal combustion engine | |
JP2005330973A (en) | Variable displacement turbocharger | |
JP4885949B2 (en) | Variable vane turbine | |
JP3876185B2 (en) | Variable capacity turbine and variable capacity turbocharger using the same | |
JP2528317B2 (en) | Pure fluid type variable capacity turbocharger | |
JP5018533B2 (en) | Variable capacity turbine and variable capacity turbocharger | |
JP3674682B2 (en) | On-off valve device for turbocharger | |
KR20190127295A (en) | Vgt for vehicle | |
WO2008139130A1 (en) | Variable geometry turbine | |
JP2003027951A (en) | Flow increasing structure for variable displacement type supercharger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004544505 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002808008 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002808008 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006216141 Country of ref document: US Ref document number: 10528643 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10528643 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002808008 Country of ref document: EP |