EP 2956624 A1 20151223 - GAS TURBINE ENGINE WITH AN AMBIENT AIR COOLING ARRANGEMENT HAVING A PRE-SWIRLER
Title (en)
GAS TURBINE ENGINE WITH AN AMBIENT AIR COOLING ARRANGEMENT HAVING A PRE-SWIRLER
Title (de)
GASTURBINENMOTOR MIT EINER RAUMLUFTKÜHLANORDNUNG MIT VORVERWIRBLER
Title (fr)
MOTEUR À TURBINE À GAZ DOTÉ D'UN AGENCEMENT DE REFROIDISSEMENT D'AIR AMBIANT AYANT UNE PRÉ-COUPELLE DE TURBULENCE
Publication
Application
Priority
- US 201313766909 A 20130214
- US 2014016014 W 20140212
Abstract (en)
[origin: WO2014126994A1] A gas turbine engine including: an ambient-air cooling circuit (10) having a cooling channel (26) disposed in a turbine blade (22) and in fluid communication with a source (12) of ambient air: and an pre-swirler (18), the pre-swirler having: an inner shroud (38); an outer shroud (56); and a plurality of guide vanes (42), each spanning from the inner shroud to the outer shroud. Circumferentially adjacent guide vanes (46, 48) define respective nozzles (44) there between. Forces created by a rotation of the turbine blade motivate ambient air through the cooling circuit. The pre-swirler is configured to impart swirl to ambient air drawn through the nozzles and to direct the swirled ambient air toward a base of the turbine blade. The end walls (50, 54) of the pre-swirler may be contoured.
IPC 8 full level
F01D 5/14 (2006.01)
CPC (source: EP RU)
F01D 5/082 (2013.01 - EP); F01D 5/143 (2013.01 - EP); F01D 5/082 (2013.01 - RU); F01D 5/143 (2013.01 - RU); F01D 11/001 (2013.01 - RU); F01D 25/12 (2013.01 - RU); F05D 2260/14 (2013.01 - EP)
Citation (search report)
See references of WO 2014126994A1
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 2014126994 A1 20140821; CN 105392964 A 20160309; CN 105392964 B 20180413; EP 2956624 A1 20151223; EP 2956624 B1 20201230; JP 2016508570 A 20160322; JP 6173489 B2 20170802; RU 2015134151 A 20170320; RU 2618153 C2 20170502; SA 515360813 B1 20180829
DOCDB simple family (application)
US 2014016014 W 20140212; CN 201480008673 A 20140212; EP 14706248 A 20140212; JP 2015558100 A 20140212; RU 2015134151 A 20140212; SA 515360813 A 20150727