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1. WO2006053579 - VARIABLE NOZZLE TURBOCHARGER

Publication Number WO/2006/053579
Publication Date 26.05.2006
International Application No. PCT/EP2004/012992
International Filing Date 16.11.2004
Chapter 2 Demand Filed 17.05.2006
IPC
F01D 17/16 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
17Regulating or controlling by varying flow
10Final actuators
12arranged in stator parts
14varying effective cross-sectional area of nozzles or guide conduits
16by means of nozzle vanes
F01D 5/14 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
12Blades
14Form or construction
CPC
F01D 17/165
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
17Regulating or controlling by varying flow
10Final actuators
12arranged in stator parts
14varying effective cross-sectional area of nozzles or guide conduits
16by means of nozzle vanes
165for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
F01D 5/141
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5Blades; Blade-carrying members
12Blades
14Form or construction
141Shape, i.e. outer, aerodynamic form
F05D 2220/40
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2220Application
40in turbochargers
F05D 2250/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2250Geometry
10Two-dimensional
16parabolic
F05D 2250/711
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2250Geometry
70Shape
71curved
711convex
F05D 2250/712
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2250Geometry
70Shape
71curved
712concave
Applicants
  • HONEYWELL INTERNATIONAL INC. [US]/[US] (AllExceptUS)
  • RENAUD, Philippe [FR]/[FR] (UsOnly)
  • TISSERANT, Denis [FR]/[FR] (UsOnly)
Inventors
  • RENAUD, Philippe
  • TISSERANT, Denis
Agents
  • LESON, Thomas, Johannes, Alois
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) VARIABLE NOZZLE TURBOCHARGER
(FR) TURBOCOMPRESSEUR À BUSE VARIABLE
Abstract
(EN) There is provided a turbocharger with a variable nozzle assembly having a plurality of cambered vanes positioned annularly around a turbine wheel, each vane (20) being pivotable around a pivot point (Pp) and being configured to have a leading edge (Ple) and a trailing edge (Pte) connected by an outer airfoil surface (2) and an inner airfoil surface (4), said outer airfoil surface (2) being substantially convex and said inner airfoil surface (4) having a convex section at the leading edge (Ple) which has a local extreme (Pex) of curvature and transitions into a concave section towards the trailing edge (Pte). The positions of the pivot point (Pp) and the local extreme (Pex) are set such that, even when the vanes are placed in a closed position, the exhaust gas stream exercises a positive torque on the vanes which tends to open the nozzle.
(FR) L'invention concerne un turbocompresseur à ensemble buse variable doté d'une pluralité d'aubes incurvées disposées en rond autour d'une roue de turbine, chaque aube (20) pivotant autour d'un point de rotation (Pp) et comportant un bord d'attaque (Ple) et un bord de fuite (Pte) reliés par une surface portante externe (2) et une surface portante interne (4). La surface portante externe (2) est sensiblement convexe et la surface portante interne (4) a une section convexe sur le bord d'attaque (Ple) avec une position de courbe extrême (Pex) et des transitions vers une section concave en direction du bord de fuite (Pte). La position du point de rotation (Pp) et la position de courbe extrême (Pex) sont telles que, même lorsque les aubes sont en position fermée, l'écoulement des gaz d'échappement exerce un couple positif sur les aubes, lequel couple sert à ouvrir la buse.
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