EP 1725742 A1 20061129 - SECTOR-DIVIDED TURBINE ASSEMBLY WITH AXIAL PISTON VARIABLE-GEOMETRY MECHANISM
Title (en)
SECTOR-DIVIDED TURBINE ASSEMBLY WITH AXIAL PISTON VARIABLE-GEOMETRY MECHANISM
Title (de)
ABGASTURBOLADER MIT VARIABLER GEOMETRIE UND EINEM RINGSCHIEBER
Title (fr)
ENSEMBLE TURBINE DIVISE EN SECTEURS, EQUIPE D'UN MECANISME A GEOMETRIE VARIABLE ET A PISTON AXIAL
Publication
Application
Priority
IB 0305142 W 20031024
Abstract (en)
[origin: WO2005040560A1] A turbine (40) for a turbocharger (10) has a turbine housing (41) defining a generally annular chamber (43) surrounding a turbine wheel (44), the chamber receiving exhaust gas for driving the turbine wheel. The chamber has dividing walls (46) that divide the chamber into a plurality of angular sectors (43a,43b), each fed with exhaust gas separately from the other sector(s). Vanes (52,53) located radially inwardly of the sectors for guiding flow into the turbine wheel include at least dividing vanes (52) that form extensions of the dividing walls (46) so as to extend the sector-division of the exhaust gas flow path all the way to the trailing edges of the dividing vanes. An axially slidable piston (48) is disposed radially inwardly of the sectors, and radially overlaps with the dividing vanes (52). The vanes either are mounted on fixed structure and are received in slots (49) in the piston, or are mounted on the piston and received in slots in fixed structure.
IPC 8 full level
F01D 9/02 (2006.01); F01D 17/14 (2006.01); F01D 17/16 (2006.01)
CPC (source: EP US)
F01D 9/026 (2013.01 - EP US); F01D 17/143 (2013.01 - EP US); F01D 17/167 (2013.01 - EP US); F05D 2220/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2005040560A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2005040560 A1 20050506; AU 2003278524 A1 20050511; EP 1725742 A1 20061129; US 2008038110 A1 20080214
DOCDB simple family (application)
IB 0305142 W 20031024; AU 2003278524 A 20031024; EP 03769824 A 20031024; US 57666303 A 20031024