EP 2230385 A1 20100922 - TURBINE ROTOR BLADE
Title (en)
TURBINE ROTOR BLADE
Title (de)
TURBINENROTORSCHAUFEL
Title (fr)
PALE DE ROTOR DE TURBINE
Publication
Application
Priority
- JP 2009050160 W 20090108
- JP 2008006895 A 20080116
Abstract (en)
It is possible to easily and rapidly slot a blade root of a final (last) turbine rotor blade into a blade groove on a turbine disc even when the plan-view shape of a shroud of the turbine rotor blade is complex. A turbine rotor blade (1) that is provided with a blade root (3) that is slotted into a blade groove formed on a circumferential portion of the turbine disc to hold the whole blade, a blade portion (4) that is exposed to high-temperature gas, a platform (5) that supports this blade portion (4), a shank (6) that connects the blade root (3) and the platform (5), and a shroud (7) that extends along the circumferential direction from the end of the blade portion (4) has a cut-out portion (8) cut out to a predetermined depth, either at the leading-edge or the trailing-edge of the blade root (3), along the lengthwise direction thereof from the end of the blade root (3) to an intermediate part of the shank (6).
IPC 8 full level
F01D 5/30 (2006.01)
CPC (source: EP US)
F01D 5/225 (2013.01 - EP US); F01D 5/3007 (2013.01 - EP US); Y10T 29/49321 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2230385 A1 20100922; EP 2230385 A4 20110316; CN 101743380 A 20100616; CN 101743380 B 20140101; JP 4939613 B2 20120530; JP WO2009090908 A1 20110526; RU 2010104753 A 20120227; US 2011217175 A1 20110908; WO 2009090908 A1 20090723; ZA 201001031 B 20110831
DOCDB simple family (application)
EP 09701788 A 20090108; CN 200980000565 A 20090108; JP 2009050160 W 20090108; JP 2009550004 A 20090108; RU 2010104753 A 20090108; US 67349409 A 20090108; ZA 201001031 A 20100211