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(19) TEPZZ 6877Z¥A T EP 2 687 703 A2 F01D 25/12 (2006.01) F02C 7/10 (2006.01) (12) (43) (21) (22) (84) (30) (71) (72) • (54) (57) (11) EUROPEAN PATENT APPLICATION (51) Int Cl.: F02C 7/18 (2006.01) F02C 3/34 (2006.01) • Okizono, Nobuhiro Tokyo, 105-8001 (JP) • Sato,Iwataro Tokyo, 105-8001 (JP) • Tsuruta,Kazutaka Tokyo, 105-8001 (JP) • Onoda,Akihiro Tokyo, 105-8001 (JP) Date of publication: 22.01.2014 Bulletin 2014/04 Application number: 13158939.2 Date of filing: 13.03.2013 Designated Contracting States: ALATBEBGCHCYCZDEDKEEESFIFRGB GRHRHUIEISITLILTLULVMCMKMTNLNO PLPTRORSSESISKSMTR DesignatedExtensionStates: BA ME Priority: 20.07.2012 JP 2012162098 Applicant: Kabushiki Kaisha Toshiba Tokyo 105-8001 (JP) Inventors: Okamura,Naoyuki Tokyo, 105-8001 (JP) Turbine using CO2 as working fluid (74) Representative: HOFFMANN EITLE Patent- und Rechtsanwälte Arabellastrasse 4 81925 München (DE) configured to transport the coolant by allowing the cool- ant to sequentially pass through the inside of the stator blades from an upstream to a downstream of the working fluid. The coolant recovery flow path (37) is configured to recover the coolant passing through the inside of the stator blade (16) at a predetermined turbine stage and merge the recovered coolant with the working fluid trans- port flow path (35) at a turbine stage on an upstream side of the predetermined turbine stage. In one embodiment, a turbine using CO2 in- cludes moving blades, stator blades, a working fluid transport flow path (35), a coolant transport flow path (36), and a coolant recovery flow path (37). The stator blades (16) constitute turbine stages together with the moving blades (13). The working fluid transport flow path is configured to transport the working fluid sequentially to the turbine stages. The coolant transport flow path is Printed by Jouve, 75001 PARIS (FR) EP 2 687 703 A2PDF Image | EP 2 687 703 A2
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