WO2008155402A1 - Réglage de position pour un dispositif de guidage de prérotation - Google Patents

Réglage de position pour un dispositif de guidage de prérotation Download PDF

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Publication number
WO2008155402A1
WO2008155402A1 PCT/EP2008/057841 EP2008057841W WO2008155402A1 WO 2008155402 A1 WO2008155402 A1 WO 2008155402A1 EP 2008057841 W EP2008057841 W EP 2008057841W WO 2008155402 A1 WO2008155402 A1 WO 2008155402A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
position control
guide
control according
actuator
Prior art date
Application number
PCT/EP2008/057841
Other languages
German (de)
English (en)
Inventor
Josef Bättig
Mathias Richner
Original Assignee
Abb Turbo Systems Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Abb Turbo Systems Ag filed Critical Abb Turbo Systems Ag
Publication of WO2008155402A1 publication Critical patent/WO2008155402A1/fr

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
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • 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
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
    • 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
    • F05D2250/51—Inlet

Definitions

  • the invention relates to the field of turbomachines subjected to exhaust gases of internal combustion engines.
  • It relates to a position control of a Vordrall guide for generating a Vordralls in the intake of a compressor and an exhaust gas turbocharger with such a Vordrall guide.
  • Exhaust gas turbochargers are used to increase the performance of internal combustion engines (reciprocating piston engines). In modern internal combustion engines, the adaptation of the exhaust gas turbocharger to variable operating conditions will become more difficult.
  • a widely used option is the so-called variable turbine and / or compressor geometry.
  • the stator vanes are aligned more or less steeply with the flow upstream of the turbine wheel in accordance with turbine power requirements.
  • the vanes in the diffuser downstream of the compressor wheel are aligned more or less steeply to the flow.
  • These pre-whirl baffles include a plurality of vanes aligned radially with respect to the compressor axis.
  • Each of the guide vanes in addition to the projecting into the flow channel blade profile a blade shank with which the blade profile is rotatably mounted in a housing.
  • the blade profile can be rotated about the axis of the blade shank via an adjusting lever.
  • an adjusting ring is provided, which is arranged concentrically to the axis of the compressor.
  • the position recognition of the vanes of the pre-whirl guidance device takes place as an absolute value and serves directly as a manipulated variable for the drive.
  • Commercially available actuators with so-called absolute encoders are very expensive and always need a homing to a limit switch.
  • the position of the vane can only be determined indirectly via the armature rotation.
  • the present invention enables accurate, robust and cost-effective detection of the angular position of the vanes of the pre-whirl deflector and the feedback in a closed loop.
  • a simple and very robust rotary potentiometer (optional in hollow shaft design) as a sensor, the angular position of the guide vanes is measured directly.
  • contactless, magnetic or optical angle measuring systems can be used as sensors for detecting the angular position of the guide vanes of the pre-whirl guide.
  • This potentiometer solution is very cost effective and also very accurate. Due to the optional direct arrangement of the angle sensor on the shaft of the guide vane need to be considered for the control no play and temperature influences. The measurement is made potentiometrically, so that a specific angular position can be ascertained directly on the basis of a measured current or voltage value.
  • the actuator is actuated as long and thus the adjusting ring or the guide vanes moves until the actual position of the vane coincides with the desired value.
  • a linear actuator (stepper motor with threaded spindle) can be used.
  • These actuators are relatively inexpensive and build very compact. In addition, it is quite robust in terms of vibration and temperature loads.
  • the rotary potentiometer is optionally arranged on the outside of the housing.
  • Another advantage of this arrangement is the simple wiring of the electric motor and the angle sensor. In addition, everything can be accommodated under a common cover.
  • FIG. 1 shows an isometric view of a pre-whirl guiding device arranged in the compressor housing with a covered housing extension
  • FIG. 2 shows a detailed view of the covered housing extension according to FIG. 1 with an actuator and a position sensor
  • Fig. 3 is an isometric detailed view of the drive and the position sensor of the pre-whirling guide of Fig. 2, and
  • FIG. 4 shows the individual components of the position sensor of the pre-twist guide device according to FIG. 2.
  • Fig. 1 shows a pre-whirling guide in the intake of a compressor.
  • the compressor comprises a compressor housing, which comprises the compressor wheel and forms the flow channel of the medium to be compressed.
  • the radially outer housing 13 comprises in the illustrated embodiment, a housing extension 14 and a cover 15 for covering the arranged in the housing extension drive for the pre-whirling guide.
  • the guide device comprises a plurality of guide vanes 20 arranged aligned with respect to the compressor axis in the radial direction. The guide vanes are rotatably mounted in an inner housing 10.
  • a central housing body 12 is arranged in the central region of the guide device, in which the tips of the plurality of guide vanes come together.
  • This central body is concentric with the axis of the compressor.
  • the central body is part of the inner housing, which forms the flow channel of the medium to be compressed in the region of the guide device.
  • the central body 12 can be positioned and retained via one or more radially extending retaining ribs 11. In order not to affect the flow in the flow channel with such ribs, the central body can also be positioned and held on the vane tips.
  • FIG. 2 The view of FIG. 2 on the outer housing 13 with the housing extension 14 shows, in addition to the actuator 51 for driving the pre-whirling guide device, a sensor 60 for detecting the current angular position of the guide vanes.
  • This sensor which is designed as a rotary potentiometer in the illustrated embodiment, as well as the actuator by means of the fastening means 58 and 65 screwed firmly to the housing.
  • the supply lines for the supply of electrical energy, or the control cables are indicated with the connecting cables 57 for the actuator, and 64 for the sensor.
  • a control unit for driving the actuator which allows the control or regulation with position feedback due to the measured angular positions of the vanes.
  • This control unit may optionally be part of the engine control of the internal combustion engine connected to the exhaust gas turbocharger.
  • Fig. 3 allows a view into the interior of the outer housing, in particular to the drive and the components of the inventive position control for the pre-whirling guide and Fig. 4 shows in detail the individual components of the position control in disassembled state.
  • Each of the guide vanes of the guide device comprises in addition to the projecting into the flow channel blade profile 21 a blade shank 22, with which the blade profile is rotatably mounted in the housing, not shown.
  • the blade profile can rotate about the axis of the blade shank.
  • an adjusting ring 30 is provided, which is arranged concentrically to the axis of the compressor.
  • the torque is transmitted from the adjusting ring 30 on the blade shank 22 via a arranged at the free end of the adjusting lever 23 ball 24.
  • the ball head 24 is guided in a groove 31 of the adjusting ring with two walls running parallel to each other. In the groove of the ball head has the translational and rotational freedom of movement, which are necessary to implement the torque transfer.
  • the ball head is arranged in a translationally displaceable sliding shoe 25. If the adjusting ring 30 is rotated for adjusting the guide vanes, the sliding shoe 25 is displaced by the ball head 24 in the groove 31 in the plane of the groove walls. If the adjusting ring is turned away, the position of the adjusting lever changes relative to the adjusting ring.
  • Rotation of the ball head in the molded by the shoe shoe ball cup can rotate in any direction as desired.
  • the shoe may also be formed in two parts by a ball socket half is arranged with a flat, sliding back on each side of the groove in the adjusting ring.
  • the torque transmission from the adjusting ring to the blade shank can also take place via a cylindrical pin arranged at the free end of the adjusting lever.
  • the pin engages in a bore of an adjusting ring also mounted in a bore, cylindrical sliding element.
  • the sliding cylinder settles in Turn the hole around its own axis and move along its own axis.
  • the bore in the sliding cylinder which is provided for receiving the pin, is perpendicular to the axis of the sliding cylinder.
  • the pin can be rotated in this hole around its own axis and move along its own axis.
  • the pin can be fixed in the sliding cylinder and mounted for sliding in a corresponding hole in the free end of the adjusting lever of the guide vane.
  • the dip tube moves driven by the spindle and guided, in the tangential direction along the adjusting ring back and forth.
  • the dip tube has a parallel-walled groove which is provided for receiving a sliding pin 41.
  • the sliding pin is additionally connected to the adjusting ring 30 by being rotatably disposed in a bore in radially outwardly projecting tabs 33 of the adjusting ring 30.
  • the actuator is optionally designed as an electric stepper motor, in which the desired rotation direction can be set via the control connection 57. In the area of the tabs, the dip tube is laterally tapered.
  • the threaded spindle can interact directly with teeth arranged on the adjusting ring.
  • the rotational movement of the spindle is converted directly into a rotational movement of the adjusting ring.
  • the inventive position control is based on the accurate detection of the angular position of the vanes 20 of the pre-whirling guide.
  • a rotary potentiometer 61 which comprises a rotatable part, directly or - as in the illustrated embodiment - connected via a connecting pin 70 with the shaft of a vane.
  • a fixed part of the rotary potentiometer is fastened to the housing with fastening means 65, which are arranged in bores 63 in the fastening tabs 62.
  • a second sensor may be arranged on the same or another vane.
  • a rotary potentiometer also non-contact magnetic sensors or optical absolute angle measuring systems can be used.
  • connection to the guide vane 20 takes place in the illustrated embodiment via the connecting pin 70.
  • This is arranged in a bore through the housing wall, wherein the bore opening is optionally sealed by means of sealing ring 74, so that no gas exchange takes place between the flow channel and the outside world.
  • the connecting pin 70 is inserted with a defined shaped plug portion 73 in a correspondingly shaped insertion opening 26 in the blade shaft 22, coaxial with the axis of rotation of the guide shaft.
  • the rotary potentiometer is plugged with a likewise defined shaped plug opening 61 on the correspondingly shaped plug portion 71 of the connecting pin to the stop 72.
  • the connecting pin can optionally be part of the blade shank, so that the potentiometer can be plugged directly onto the shank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne le réglage de la position d'un dispositif de guidage de prérotation destiné à produire une prérotation dans la partie admission d'un ventilateur, comprenant l'utilisation d'un actionneur (50) destiné à déplacer des éléments de guidage (20) du dispositif de guidage de prérotation, ainsi qu'un capteur (60) qui détermine la position angulaire réelle d'au moins un élément de guidage (20). Cela permet une reconnaissance exacte, renforcée et économique de la position angulaire des pales de guidage du dispositif de guidage de prérotation et la rétroaction dans un circuit de réglage fermé.
PCT/EP2008/057841 2007-06-20 2008-06-20 Réglage de position pour un dispositif de guidage de prérotation WO2008155402A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07110648.8 2007-06-20
EP07110648A EP2006495A1 (fr) 2007-06-20 2007-06-20 Réglage de position pour dispositif de conduite à prérotation

Publications (1)

Publication Number Publication Date
WO2008155402A1 true WO2008155402A1 (fr) 2008-12-24

Family

ID=38666967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/057841 WO2008155402A1 (fr) 2007-06-20 2008-06-20 Réglage de position pour un dispositif de guidage de prérotation

Country Status (2)

Country Link
EP (1) EP2006495A1 (fr)
WO (1) WO2008155402A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041964A1 (de) * 2009-09-17 2011-06-09 Mahle International Gmbh Stellvorrichtung
US20160010491A1 (en) * 2014-07-10 2016-01-14 Hamilton Sundstrand Corporation Hot environment vane angle measurement
US20230313699A1 (en) * 2022-04-01 2023-10-05 General Electric Company Adjustable inlet guide vane angle monitoring device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033654B2 (en) * 2010-12-30 2015-05-19 Rolls-Royce Corporation Variable geometry vane system for gas turbine engines
US9562829B2 (en) * 2014-10-31 2017-02-07 Hamilton Sundstrand Corporation Vane position sensor installation within a turbine case
US9970315B2 (en) * 2015-02-12 2018-05-15 Hamilton Sundstrand Corporation Movable vane control system
EP3078816A1 (fr) * 2015-04-07 2016-10-12 Siemens Aktiengesellschaft Dispositif de détection de l'angle de rotation d'aubes directrices réglables
BE1026199B1 (fr) * 2018-04-10 2019-11-12 Safran Aero Boosters S.A. Virole exterieure en deux parties
US10968767B2 (en) 2018-05-01 2021-04-06 Raytheon Technologies Corporation Nested direct vane angle measurement shaft
BE1029455B1 (fr) * 2021-06-04 2023-01-09 Safran Aero Boosters Ensemble de turbomachine d’aéronef, compresseur, turbomachine et procédé de détermination du calage angulaire d’aubes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799689A (en) * 1971-05-14 1974-03-26 Hitachi Ltd Operating apparatus for guide vanes of hydraulic machine
US4380893A (en) * 1981-02-19 1983-04-26 The Garrett Corporation Compressor bleed air control apparatus and method
US5025629A (en) * 1989-03-20 1991-06-25 Woollenweber William E High pressure ratio turbocharger
EP0886069A2 (fr) * 1994-05-23 1998-12-23 Ebara Corporation Turbomachine avec dispositifs de guidage à pas variable
EP1036924A2 (fr) * 1999-03-16 2000-09-20 General Electric Company Centrale à turbine à gaz avec régulation de la capacité en réserve
EP1063402A2 (fr) * 1999-06-25 2000-12-27 General Electric Company Méthode d'operation optimalisé pour une turbine à gaz industrielle
US6364602B1 (en) * 2000-01-06 2002-04-02 General Electric Company Method of air-flow measurement and active operating limit line management for compressor surge avoidance
JP2002130183A (ja) * 2000-10-25 2002-05-09 Ishikawajima Harima Heavy Ind Co Ltd 航空エンジン用入口案内翼装置とその制御方法
EP1274164A2 (fr) * 2001-07-07 2003-01-08 Lucas Industries Limited Actuateur pour aubes de guidage variables
EP1349259A2 (fr) * 2002-03-27 2003-10-01 Hitachi, Ltd. Actionneur commandé électroniquement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799689A (en) * 1971-05-14 1974-03-26 Hitachi Ltd Operating apparatus for guide vanes of hydraulic machine
US4380893A (en) * 1981-02-19 1983-04-26 The Garrett Corporation Compressor bleed air control apparatus and method
US5025629A (en) * 1989-03-20 1991-06-25 Woollenweber William E High pressure ratio turbocharger
EP0886069A2 (fr) * 1994-05-23 1998-12-23 Ebara Corporation Turbomachine avec dispositifs de guidage à pas variable
EP1036924A2 (fr) * 1999-03-16 2000-09-20 General Electric Company Centrale à turbine à gaz avec régulation de la capacité en réserve
EP1063402A2 (fr) * 1999-06-25 2000-12-27 General Electric Company Méthode d'operation optimalisé pour une turbine à gaz industrielle
US6364602B1 (en) * 2000-01-06 2002-04-02 General Electric Company Method of air-flow measurement and active operating limit line management for compressor surge avoidance
JP2002130183A (ja) * 2000-10-25 2002-05-09 Ishikawajima Harima Heavy Ind Co Ltd 航空エンジン用入口案内翼装置とその制御方法
EP1274164A2 (fr) * 2001-07-07 2003-01-08 Lucas Industries Limited Actuateur pour aubes de guidage variables
EP1349259A2 (fr) * 2002-03-27 2003-10-01 Hitachi, Ltd. Actionneur commandé électroniquement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041964A1 (de) * 2009-09-17 2011-06-09 Mahle International Gmbh Stellvorrichtung
US20160010491A1 (en) * 2014-07-10 2016-01-14 Hamilton Sundstrand Corporation Hot environment vane angle measurement
US9732624B2 (en) * 2014-07-10 2017-08-15 Hamilton Sundstrand Corporation Hot environment vane angle measurement
US20230313699A1 (en) * 2022-04-01 2023-10-05 General Electric Company Adjustable inlet guide vane angle monitoring device
US11852020B2 (en) * 2022-04-01 2023-12-26 General Electric Company Adjustable inlet guide vane angle monitoring device

Also Published As

Publication number Publication date
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