EP 0924388 A3 20000816 - System to keep the blade tip clearance in a gas turbine constant
Title (en)
System to keep the blade tip clearance in a gas turbine constant
Title (de)
System zur Konstanthatung des Schaufelspitzenspiels bei einer Gasturbine
Title (fr)
Système pour maintenir le jeu des extrémités des aubes d'une turbine à gaz à constant
Publication
Application
Priority
DE 19756734 A 19971219
Abstract (en)
[origin: EP0924388A2] The tips (6a) of the blades are enclosed by ring segments (5) hanging in the turbine housing with a gap (s) controlled in width by a tempering channel system to which an air stream (8) is supplied which is conveyed by the compressor part of the turbine past the combustion chamber. A diaphragm ring (11) closes the measuring bores (7b) more or less in dependence on the temperature of the air stream (8) which is bought up to same. A fraction of the hot gas flowing through the guide vanes (4) and rotor blades (2) can pass through a gap (13) between the stator ring (10) and ring segments (5) at least with a low turbine load, and into the ring chamber (7a) and into the rear area of the turbine, seen in the flow direction.
IPC 1-7
IPC 8 full level
F01D 1/16 (2006.01); F01D 11/18 (2006.01); F01D 11/24 (2006.01)
CPC (source: EP US)
F01D 11/18 (2013.01 - EP US); F01D 11/24 (2013.01 - EP US)
Citation (search report)
- [XY] US 3975901 A 19760824 - HALLINGER CLAUDE CHRISTIAN, et al
- [Y] US 3814313 A 19740604 - BEAM P, et al
- [Y] US 4805398 A 19890221 - JOURDAIN GERARD E A [FR], et al
- [Y] US 5064343 A 19911112 - MILLS STEPHEN J [GB]
- [A] GB 1581566 A 19801217 - GEN ELECTRIC
- [A] US 4005946 A 19770201 - BROWN BERTRAND HIRSCH, et al
- [A] US 4023731 A 19770517 - PATTERSON WILLIAM R
- [A] US 4541775 A 19850917 - HOVAN EDWARD J [US]
- [A] US 4613280 A 19860923 - TATE MICHAEL J [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0924388 A2 19990623; EP 0924388 A3 20000816; EP 0924388 B1 20030924; DE 19756734 A1 19990624; DE 59809709 D1 20031030; US 6126390 A 20001003
DOCDB simple family (application)
EP 98121690 A 19981113; DE 19756734 A 19971219; DE 59809709 T 19981113; US 19766898 A 19981123