WO2006015559A1 - Turbocharger with variable turbine geometry - Google Patents
Turbocharger with variable turbine geometry Download PDFInfo
- Publication number
- WO2006015559A1 WO2006015559A1 PCT/CZ2005/000061 CZ2005000061W WO2006015559A1 WO 2006015559 A1 WO2006015559 A1 WO 2006015559A1 CZ 2005000061 W CZ2005000061 W CZ 2005000061W WO 2006015559 A1 WO2006015559 A1 WO 2006015559A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support
- guide blades
- bearing housing
- turbocharger
- housing
- 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
- F01D17/16—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
-
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
-
- 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
- F05D2250/20—Three-dimensional
- F05D2250/23—Three-dimensional prismatic
- F05D2250/231—Three-dimensional prismatic cylindrical
-
- 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
- F05D2250/60—Structure; Surface texture
Definitions
- the invention concerns turbochargers with a variable geometry of turbine guide blades, designed in particular for supercharging a combustion engine.
- the invention applies mainly to the turbine housing design and the guide-blade system mounting.
- turbocharger-housing designs relating mainly to various arrangements of the variable guide-blades in the housing.
- blade-drive mechanism and blade- tilting synchronisation are concerned, there are basically two main known types of design.
- One is based on blades tilting by means of a shaft, which also serves as a bearing axis and a rotation axis of these blades.
- the movement of all blades is synchronised by a ring, mounted in turbocharger's main body, and this ring is tilted by means of a lever or a pull-rod connected to the drive mechanism outside the housing.
- the other design is based on blades tilting directly by the ring, located at the sides of the blades, and the ring is linked with the blades by protrusions on the blades that fit in the recesses or groves in the ring, or vice versa. Both these designs have their pros and cons. A synchronisation ring located outside the blade area is thus protected against high temperatures but there is an increased likelihood of choking up the ring with carbon. The opposite is true about a ring located at the blades.
- the support is reinforced with an axial cylindrical stiffener, which, when assembled, reaches as far as the front of turbocharger's bearing housing, with 0.1-0.7 mm of guaranteed play from this front.
- an axial cylindrical stiffener which, when assembled, reaches as far as the front of turbocharger's bearing housing, with 0.1-0.7 mm of guaranteed play from this front.
- a saucer-shaped edge which, if assembled, fits on to the edge of the bearing housing front, with the bottom reinforced in the radial direction between the axial cylindrical stiffener and the saucer-shaped edge of the guide-blade support.
- the bottom has blade axial holes, with the pins of the guide-blades fitted into these holes, while adjusting arms are fixed to the inside of the guide-blade pins.
- the guide-blade support can be conveniently centred against the bearing housing using the inner surface of the bottom's cylindrical support. Another benefit can be achieved by directing the adjusting arms of the guide-blades towards the centre of the guide-blade support, with the heads of the adjusting arms fitted into the outer adjusting openings of the adjusting ring, fixed in a radial direction to the cylindrical surface on the front of the bearing housing, and arranged in the axial direction between the radial front surface of the bearing housing and the opposite radial front surface of the axial cylindrical stiffener of the guide-blade support. A functional benefit is achieved if the inner surface of the adjusting ring fits on to the outer cylindrical surface on the bearing housing by means of relief grooves.
- Another benefit stems from the location of the axial opening at the edge of the peripheral collar of the bearing housing, in which the control pin of the adjusting ring is fitted, with an adjusting-ring control arm located on the inside of this pin, the head of this control arm fitted into the control opening on the adjusting-ring surface, and a pull-rod lever located on the outside of the pin.
- a benefit can be achieved by directing the adjusting-ring control arm towards the turbocharger axis while the pull-rod lever is directed from the turbocharger axis.
- a stop- fork should be located near the axial opening at the edge of the bearing housing collar, with the arms of this fork projecting axially along both sides of the pull-rod lever.
- the system of the bearing housing, guide-blade support and rotor housing should be designed in such a way that the outer diameters of the bearing housing collar and of the saucer- shaped edge of the guide-blade support fitted on to the collar are flush mounted against the inner diameter through these outer diameters of the slid- on inner cylindrical surface of the turbine housing with a guaranteed play.
- the play between the outer diameter of the saucer-shaped edge of the guide-blade support and the inner diameter of the opposite inner cylindrical surface of the turbine housing is greater than the other.
- a last but not least benefit is achieved if axial threaded holes are available in the bottom reinforcement area of the guide-blade support, with the screws fixing the guide-blade support to the bearing housing collar screwed in these holes, while the rotor housing is fixed to the bearing housing collar with a flange, which projects beyond the bearing housing collar.
- variable guide-blade geometry turbocharger is based on, with a simple and sturdy design and compact dimensions at the same time. What is more, there are even heat distribution and mainly acceptable differences in temperature, time and place, good thermal protection of the bearing housing, which, in this design, is covered by the guide-blade support virtually throughout its front, as well as the thermal protection of the entire guide-blade tilting mechanism.
- fig.1 showing the longitudinal vertical section of the turbine and part of the bearing housing
- fig.2 showing in detail the longitudinal vertical section of the fixation of the adjusting-ring control pin with a pull-rod lever and adjusting-ring control arm
- fig.3 showing the front of the adjusting ring
- fig.4 showing the front of the guide-blade support from the inside.
- Fig.5 shows the bearing housing - a view of the collar through the housing
- fig.6 shows the bearing housing - a view from the rotor
- fig.7 and fig.8 show the side view and the top view of the stop-fork.
- the turbocharger design in this example consists of a bearing housing, a blower, which is not shown here, and a turbine shown here, which includes a guide-blade support, located between the bearing housing and the turbine housing.
- the support 1 of guide blades 2 consists of a saucer-shaped element, with a thinned flat bottom Jl in the central area, with a central opening 111 adapted to rotor 20 shaft penetration.
- the support 1 is reinforced by an axial cylindrical stiffener 12, which, when assembled, reaches as far as the front of turbocharger's bearing housing 5, with a guaranteed play of 0.3 mm from this front.
- a saucer-shaped edge 13 is located on the support 1, at the periphery of the support 1 of the guide blades 2, and this edge, if assembled, fits on to the edge of the bearing-housing front 5, with the bottom Jl reinforced 14 in the radial direction between the axial cylindrical stiffener 12 and the saucer-shaped edge J3. of the support 1 of the guide blades 2.
- the bottom has blade axial holes 112, with the pins 21 of the guide blades 2 fitted into these holes, while adjusting arms 4 are fixed to the inside of the pins 21 of the guide blades 2.
- the support 1 of the guide blades 2 is conveniently centred there against the bearing housing 5 by the inner surface of the cylindrical support J2 of the bottom Jl.
- the adjusting arms 4 of the guide blades 2 are directed to the centre of the support 1 of the guide blades 2, and the heads of the adjusting arms 4 are fitted into the outer adjusting openings 31 of the adjusting arm 3, located in the radial direction on the cylindrical surface on the front of the bearing housing 5, and arranged in the axial direction between the radial front surface of the bearing housing 5 and the opposite radial front surface of the axial cylindrical stiffener 12 of the support 1 of the guide blades 2.
- the inner surface of the adjusting ring 3 in this design fits on to the outer cylindrical surface on the bearing housing 5 by means of relief grooves 52.
- an axial opening 511 is located at the edge of the peripheral collar 51 of the bearing housing 5 in this example.
- the pin 8 of the adjusting ring 3 control is embedded in this opening, and the control arm 7 of the adjusting ring 3 is located on the inside of this pin 8.
- the pin 8 at the edge of the collar 5_1 is fixed using an insert 6 of the collar 5J_ of the bearing housing 5, pressed in this collar 5J_.
- the head of the control arm 7 fits into the control opening 32 on the surface of the adjusting ring 3 and, at the same time, the lever 10 of the pull-rod 15 is located on the outside of the pin 8.
- This pull-rod leads to the controller, which is not shown here, and this controller is designed, in this example, as a pneumatic membrane drive or an electric servo-drive.
- the control arm 7 of the adjusting ring 3 is directed to the axis of the turbocharger 20, while the lever 10 of the pull-rod 15 is directed from the axis of the turbocharger 20.
- a stop-fork 9 is mounted at the axial opening 511 , at the edge of the collar 5_1 of the bearing housing 5, with the arms of this fork axially projecting along both sides of the lever 10 of the pull-rod 15.
- An adjusting stop-joint can always be located in the arms of the stop-fork 9.
- the system of the bearing housing 5, the support 1 of the guide blades 2 and the housing 22 of the rotor 20 is designed in such a way that the outer diameters of the collar 5_1 of the bearing-housing 5 and of the saucer-shaped edge 13 of the support 1 of the guide blades 2 fitted on to the collar are flush mounted against the inner diameter through these outer diameters of the slid-on inner cylindrical surface of the housing 22 of the turbine 20 with a guaranteed play.
- the play between the outer diameter of the saucer-shaped edge 13 of the support 1 of the guide blades 2 and the inner diameter of the opposite inner cylindrical surface of the housing 22 of the turbine 20 is greater than the other.
- the lesser play is 0.1 mm and the greater play is 0.5 mm.
- turbine components are assembled in such a way that axial threaded holes 113 are located in the reinforcement area 14 of the bottom H of the support 1 of the guide blades 2. Screws 101 fixing the support 1 of the guide blades 2 to the collar 5_1 of the bearing housing 5 are screwed in these holes.
- the housing 22 of the rotor 20 is fixed to the collar 5_1 of the bearing housing 5 with a flange, which is not shown here, and which projects beyond the collar 5_1 of the bearing housing 5 and is fixed with screws, which are not shown here either, embedded in housing's threaded holes 221, located in the axial direction at the periphery of the turbine housing 22.
- a few flanges as fitting pieces can be used instead of a single flange that covers the entire periphery.
- the equipment works as an ordinary turbocharger. However, it features a more compact and stiffer design, and improved thermal protection of sensitive components of the turbine.
- the equipment according to this invention can be used for supercharging combustion engines, mainly vehicle engines.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0900305A AT501528B1 (en) | 2004-08-13 | 2005-08-15 | TURBOCHARGER WITH VARIABLE GEOMETRY OF GUIDES |
DE112005000065T DE112005000065T5 (en) | 2004-08-13 | 2005-08-15 | Turbocharger with variable geometry of the vanes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZ20040881A CZ299243B6 (en) | 2004-08-13 | 2004-08-13 | Turbocharger with variable geometry of guide vanes |
CZPV2004-881 | 2004-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006015559A1 true WO2006015559A1 (en) | 2006-02-16 |
Family
ID=35285499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CZ2005/000061 WO2006015559A1 (en) | 2004-08-13 | 2005-08-15 | Turbocharger with variable turbine geometry |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT501528B1 (en) |
CZ (1) | CZ299243B6 (en) |
DE (1) | DE112005000065T5 (en) |
WO (1) | WO2006015559A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007107289A1 (en) * | 2006-03-17 | 2007-09-27 | Borgwarner Inc. | Turbocharger with cartridge centring device |
DE102009009129A1 (en) | 2009-02-17 | 2010-08-26 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Turbocharger, has guide vanes pivotable around axis for providing variable turbine geometries, and carrier ring with circular flange for radially overlapping front side of turbine wheel for forming gap |
WO2011147518A1 (en) * | 2010-05-28 | 2011-12-01 | Daimler Ag | Exhaust gas turbocharger with rotatable adjustment device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0111781A2 (en) * | 1979-05-14 | 1984-06-27 | OSBORN, Norbert Lewis | Controller for a turbocharger arrangement |
US4679984A (en) * | 1985-12-11 | 1987-07-14 | The Garrett Corporation | Actuation system for variable nozzle turbine |
US4770603A (en) * | 1985-11-23 | 1988-09-13 | Aktiengesellschaft Kuhnle, Kopp & Kausch | Exhaust gas turbocharger |
WO2003046346A1 (en) * | 2001-11-30 | 2003-06-05 | Komatsu Ltd. | Variable turbocharger |
WO2004035991A2 (en) * | 2002-10-18 | 2004-04-29 | Mitsubishi Heavy Industries, Ltd. | Variable nozzle turbocharger and manufacturing method |
-
2004
- 2004-08-13 CZ CZ20040881A patent/CZ299243B6/en not_active IP Right Cessation
-
2005
- 2005-08-15 WO PCT/CZ2005/000061 patent/WO2006015559A1/en active Application Filing
- 2005-08-15 DE DE112005000065T patent/DE112005000065T5/en not_active Ceased
- 2005-08-15 AT AT0900305A patent/AT501528B1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0111781A2 (en) * | 1979-05-14 | 1984-06-27 | OSBORN, Norbert Lewis | Controller for a turbocharger arrangement |
US4770603A (en) * | 1985-11-23 | 1988-09-13 | Aktiengesellschaft Kuhnle, Kopp & Kausch | Exhaust gas turbocharger |
US4679984A (en) * | 1985-12-11 | 1987-07-14 | The Garrett Corporation | Actuation system for variable nozzle turbine |
WO2003046346A1 (en) * | 2001-11-30 | 2003-06-05 | Komatsu Ltd. | Variable turbocharger |
WO2004035991A2 (en) * | 2002-10-18 | 2004-04-29 | Mitsubishi Heavy Industries, Ltd. | Variable nozzle turbocharger and manufacturing method |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007107289A1 (en) * | 2006-03-17 | 2007-09-27 | Borgwarner Inc. | Turbocharger with cartridge centring device |
DE102009009129A1 (en) | 2009-02-17 | 2010-08-26 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Turbocharger, has guide vanes pivotable around axis for providing variable turbine geometries, and carrier ring with circular flange for radially overlapping front side of turbine wheel for forming gap |
DE102009009129B4 (en) | 2009-02-17 | 2022-11-03 | BMTS Technology GmbH & Co. KG | Turbocharger with variable turbine geometry |
WO2011147518A1 (en) * | 2010-05-28 | 2011-12-01 | Daimler Ag | Exhaust gas turbocharger with rotatable adjustment device |
Also Published As
Publication number | Publication date |
---|---|
AT501528A2 (en) | 2006-09-15 |
CZ2004881A3 (en) | 2006-03-15 |
DE112005000065T5 (en) | 2006-09-14 |
AT501528A5 (en) | 2010-04-15 |
CZ299243B6 (en) | 2008-05-28 |
AT501528B1 (en) | 2010-07-15 |
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