EP 1678411 B1 20120808 - TURBINE ENGINE AND BLADED ROTOR FOR A COMPRESSION STAGE OF A TURBINE ENGINE
Title (en)
TURBINE ENGINE AND BLADED ROTOR FOR A COMPRESSION STAGE OF A TURBINE ENGINE
Title (de)
TURBOMASCHINE UND BESCHAUFELTER ROTOR FÜR EINE VERDICHTERSTUFE EINER TURBOMASCHINE
Title (fr)
TURBOMACHINE ET ROTOR A AUBES POUR UN ETAGE DE COMPRESSION D'UNE TURBOMACHINE
Publication
Application
Priority
- DE 2004002192 W 20041002
- DE 10351092 A 20031031
Abstract (en)
[origin: WO2005045200A1] The invention relates to a turbine engine and a rotor for a turbine engine. Several adjacent impeller blades are positioned in the circumferential direction of the rotor, each impeller blade having a blade root, each impeller blade being fixed in a retainer groove, running in the circumferential direction of the rotor, by means of the blade root. Each impeller blade may be introduced, by the blade roots thereof, into the retaining groove, by means of an introduction groove, whereby the width of the introduction groove is matched to the width of the blade roots. According to the invention, the width of the blade roots (13, 14) and the width of the, or each introduction groove (17) in the circumferential direction is greater than half the width of a desired nominal blade pitch (18), whereby in the region of the, or each introduction groove (17), a first number of impeller blades (11), with desired nominal blade pitch (18), is exchanged for a second number of impeller blades (12), with increased blade pitch (19), the first number being greater than the second number.
IPC 8 full level
CPC (source: EP US)
F01D 5/3038 (2013.01 - EP US); F01D 5/32 (2013.01 - EP US); F05D 2200/33 (2013.01 - EP US); F05D 2240/80 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 10351092 A1 20050525; DE 10351092 B4 20131121; EP 1678411 A1 20060712; EP 1678411 B1 20120808; US 2007134100 A1 20070614; US 7399164 B2 20080715; WO 2005045200 A1 20050519
DOCDB simple family (application)
DE 10351092 A 20031031; DE 2004002192 W 20041002; EP 04789909 A 20041002; US 57691706 A 20060424