EP 2372085 A2 20111005 - Internal reaction steam turbine cooling arrangement
Title (en)
Internal reaction steam turbine cooling arrangement
Title (de)
Interne Reaktionsdampfturbinenkühlanordnung
Title (fr)
Agencement de refroidissement de turbine à vapeur à réaction interne
Publication
Application
Priority
US 64947009 A 20091230
Abstract (en)
A rotor 12 of a turbomachine 10 includes a rotor drum 13 located at a central axis 14 and a plurality of buckets 16 secured to the rotor drum. A first negative reaction stage includes axial entry dovetailed buckets 116. An axial passage 70 for cooling flow 72 is provided between the bucket dovetail 50 and the dovetail slot 32 in the rotor drum 13. Cool steam at taken between a first stage bucket 116 and a second stage nozzle 118 and passed through the axial passage 70 to a low pressure sink 140 at an upstream end of the rotor 12.
IPC 8 full level
F01D 5/08 (2006.01)
CPC (source: EP US)
F01D 5/084 (2013.01 - EP US); F01D 5/085 (2013.01 - EP US); F01D 5/323 (2013.01 - EP US); F05D 2220/31 (2013.01 - EP US)
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)
US 2011158819 A1 20110630; EP 2372085 A2 20111005; JP 2011137455 A 20110714; RU 2010153518 A 20120710
DOCDB simple family (application)
US 64947009 A 20091230; EP 10195081 A 20101215; JP 2010283900 A 20101221; RU 2010153518 A 20101228