EP 0551229 B1 19961127 - Drum rotor for impulse steam turbine with blades mounted in axial grooves
Title (en)
Drum rotor for impulse steam turbine with blades mounted in axial grooves
Title (de)
Trommelrotor für Impulsdampfturbine mit Schaufeln montiert in Längsnuten
Title (fr)
Rotor tambour pour turbine à vapeur à action avec montage des ailettes dans des rainures longitudinales
Publication
Application
Priority
- FR 9200122 A 19920108
- FR 9200948 A 19920129
Abstract (en)
[origin: EP0551229A1] Drum rotor for an impulse steam turbine with the blades mounted in longitudinal grooves, and impulse steam turbine including such a rotor. <??>Drum rotor for an impulse steam turbine including movable wheels consisting of blades the roots of which, provided with flared parts, are immobilised in grooves made in the rotor, characterised in that the grooves are longitudinal over at least part of the rotor (6) and in that the roots (8) of the blades (9) of a movable wheel (10) are separated from the roots (8) of the blades (9) of a neighbouring movable wheel (10) by spacers (12). <??>Preferably, the diaphragms (15) are single-piece. <??>Optimum filling of grooves and better joining of the cap pieces of the blades. <IMAGE>
IPC 1-7
IPC 8 full level
F01D 5/06 (2006.01); F01D 5/30 (2006.01); F01D 5/34 (2006.01); F01D 11/12 (2006.01)
CPC (source: EP US)
F01D 5/06 (2013.01 - EP US); F01D 5/3007 (2013.01 - EP US); F01D 11/122 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0551229 A1 19930714; EP 0551229 B1 19961127; AT E145709 T1 19961215; CN 1034829 C 19970507; CN 1080017 A 19931229; CZ 406592 A3 19930811; DE 69306130 D1 19970109; DE 69306130 T2 19970327; DK 0551229 T3 19970317; ES 2093936 T3 19970101; GR 3022290 T3 19970430; JP 3297112 B2 20020702; JP H05248205 A 19930924; MX 9300032 A 19931101; US 5308227 A 19940503
DOCDB simple family (application)
EP 93400019 A 19930107; AT 93400019 T 19930107; CN 93100169 A 19930106; CS 406592 A 19921231; DE 69306130 T 19930107; DK 93400019 T 19930107; ES 93400019 T 19930107; GR 960403332 T 19970116; JP 157693 A 19930108; MX 9300032 A 19930107; US 167593 A 19930107