EP 2823152 A1 20150114 - AXIAL ROTOR BLADE SECTION FOR A GAS TURBINE
Title (en)
AXIAL ROTOR BLADE SECTION FOR A GAS TURBINE
Title (de)
AXIALER ROTORABSCHNITT FÜR EINE GASTURBINE
Title (fr)
SECTION AXIALE DE ROTOR POUR UNE TURBINE À GAZ
Publication
Application
Priority
- DE 102012207622 A 20120508
- EP 2013057753 W 20130415
Abstract (en)
[origin: WO2013167346A1] The invention relates to a turbine rotor blade (14) with a blade root (54), a platform (28) which adjoins it, and a turbine blade (15) which is set up on that side of the platform (28) which faces away from the blade root (54), wherein at least one opening (62) for feeding a coolant (66) into the turbine rotor blade interior is provided on an underside (64) of the blade root (54), which at least one opening (62) merges into a coolant duct (60). Furthermore, the invention relates to an axial rotor section (10) for a rotor (23) of a turbine, having an outer circumferential surface which adjoins two end-side first side surfaces (53) and in which rotor blade holding grooves (12) which are distributed over the circumference and extend along an axial direction are provided for rotor blades (14) of the turbine, wherein a turbine rotor blade (14) is arranged in every holding groove (12), wherein a multiplicity of sealing elements (16) are provided at the side of a side surface (53) of the rotor section (10), which sealing elements (16) lie opposite the end sides (52) of blade roots (54) such that a gap is formed. In order to achieve improved cooling of the sealing element (16), which extends the service life thereof and/or toughens said sealing element (16) for higher ambient temperatures, it is proposed that a multiplicity of outlet holes (58) for impingement cooling of the sealing elements (16) are provided in the end surface (53) and/or in the end surface (52).
IPC 8 full level
CPC (source: EP US)
F01D 5/18 (2013.01 - US); F01D 5/30 (2013.01 - US); F01D 5/3015 (2013.01 - EP US); F01D 5/082 (2013.01 - EP US); F05B 2260/201 (2013.01 - EP US); F05D 2260/201 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US)
Citation (search report)
See references of WO 2013167346A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013167346 A1 20131114; CN 104285040 A 20150114; CN 104285040 B 20160907; EP 2823152 A1 20150114; IN 8366DEN2014 A 20150508; JP 2015516052 A 20150604; JP 5990639 B2 20160914; RU 2014149236 A 20160627; US 2015086361 A1 20150326; US 9745852 B2 20170829
DOCDB simple family (application)
EP 2013057753 W 20130415; CN 201380024454 A 20130415; EP 13718314 A 20130415; IN 8366DEN2014 A 20141008; JP 2015510703 A 20130415; RU 2014149236 A 20130415; US 201314398464 A 20130415