EP 0566478 A1 19931020 - High pressure steam turbine casing.
Title (en)
High pressure steam turbine casing.
Title (de)
Hochdruckdampfturbinengehäuse.
Title (fr)
Carter haute pression pour turbine à vapeur.
Publication
Application
Priority
FR 9204812 A 19920417
Abstract (en)
HP turbine module with rotor wheel with intake of steam with very high characteristics including zones of different designs adapated to the pressure and temperature levels. - Zone A located on the steam intake side includes an assembly consisting of rotor (1), diaphragms (8), internal spool (18), and intake packing carriers (14) which are perfectly isotropic, without a break in the horizontal seal. - The zone P located on the exhaust side where the internal spool (19), produced in two parts, is coupled to the internal spool (18) of the zone A. The internal spool (19) of the zone P may be isotropic and shrunk-on or nonisotropic or bolted. In the zone A the fins (3) are mounted either in axial grooves (31) or in circumferental grooves, while in the zone P, for simplification, the grooves (16) are chosen to be circumferential. Advantage: transverse decrease in the module owing: - to the rotor wheel (1), - to the isotropic front internal spool (18), - to the elimination of the third casing on the intake side. <IMAGE>
IPC 1-7
IPC 8 full level
F01D 5/06 (2006.01); F01D 25/24 (2006.01); F01D 25/26 (2006.01); F01K 7/32 (2006.01); F01K 7/38 (2006.01)
CPC (source: EP US)
F01D 25/24 (2013.01 - EP US); F01D 25/246 (2013.01 - EP US); F01D 25/26 (2013.01 - EP US)
Citation (search report)
- [Y] FR 1320174 A 19630308 - RATEAU SOC
- [Y] US 2888240 A 19590526 - FLEISCHMANN JOHN J, et al
- [A] CH 111845 A 19260102 - ESCHER WYSS MASCHF AG [CH]
- [A] GB 2138078 A 19841017 - GEN ELECTRIC
- [A] FR 1201991 A 19600107 - NAPIER & SON LTD
- [A] CH 331946 A 19580815 - WESTINGHOUSE ELECTRIC CORP [US]
- [A] EP 0475771 A1 19920318 - UNITED TECHNOLOGIES CORP [US]
- [A] GB 1101305 A 19680131 - DOMINION ENG WORKS LTD
- [A] FR 1085715 A 19550207 - ESCHER WYSS AG
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0566478 A1 19931020; EP 0566478 B1 19960508; EP 0566478 B2 20020710; DE 69302520 D1 19960613; DE 69302520 T2 19960912; DE 69302520 T3 20021205; FR 2690202 A1 19931022; FR 2690202 B1 19950707; JP 3529145 B2 20040524; JP H0658101 A 19940301; US 5350276 A 19940927
DOCDB simple family (application)
EP 93400960 A 19930413; DE 69302520 T 19930413; FR 9204812 A 19920417; JP 11369193 A 19930416; US 4719293 A 19930416