EP 0884454 A1 19981216 - Variable geometry turbine
Title (en)
Variable geometry turbine
Title (de)
Turbine mit verstellbarer Statorgeometrie
Title (fr)
Turbine à géométrie variable
Publication
Application
Priority
GB 9711892 A 19970610
Abstract (en)
A variable geometry turbine comprising a housing, a turbine wheel mounted to rotate about a pre-determined axis within the housing, and a gas inlet passage to the turbine. The gas inlet passage is defined between a fixed wall and an annular sidewall which is mounted in the housing and is displaceable relative to the fixed wall between axially spaced first and second positions. The sidewall is biased away from the fixed by at least one spring towards the first position, an axial force is applied to the sidewall in opposition to the spring to thereby control the axial position of the sidewall. The spring or springs provide a non-linear length to spring force characteristics such that the resultant of the applied spring force and an axial force applied to the sidewall as a result of gas flow through the passage increases continuously as the sidewall is displaced from the first position to the second position.
IPC 1-7
IPC 8 full level
F01D 25/24 (2006.01); F01D 17/14 (2006.01); F02B 37/22 (2006.01); F02C 3/05 (2006.01); F02C 7/00 (2006.01)
CPC (source: EP)
F01D 17/143 (2013.01)
Citation (applicant)
US 5522697 A 19960604 - PARKER JOHN F [GB], et al
Citation (search report)
- [X] EP 0012895 A1 19800709 - CARRIER CORP [US]
- [X] GB 1554074 A 19791017 - KLOECKNER HUMBOLDT DEUTZ AG
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0884454 A1 19981216; EP 0884454 B1 20030716; DE 69816373 D1 20030821; DE 69816373 T2 20040415; GB 9711892 D0 19970806; JP 4128269 B2 20080730; JP H1162511 A 19990305
DOCDB simple family (application)
EP 98304122 A 19980526; DE 69816373 T 19980526; GB 9711892 A 19970610; JP 16268098 A 19980610