(19)
(11) EP 3 266 984 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.01.2018 Bulletin 2018/04

(43) Date of publication A2:
10.01.2018 Bulletin 2018/02

(21) Application number: 17170642.7

(22) Date of filing: 11.05.2017
(51) International Patent Classification (IPC): 
F01D 5/20(2006.01)
 F01D 11/08(2006.01)
(84) Designated Contracting States:
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 States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 08.07.2016 JP 2016135801

(71) Applicant: Mitsubishi Hitachi Power Systems, Ltd.
Nishi-ku Yokohama 220-8401 (JP)

(72) Inventors:
  • SHIGEKI, Senoo
    Yokohama, 220-8401 (JP)
  • HISATAKA, Fukushima
    Yokohama, 220-8401 (JP)

(74) Representative: Strehl Schübel-Hopf & Partner 
Maximilianstrasse 54
80538 München
80538 München (DE)

   


(54) MOVING BLADE AND TURBINE USING MOVING BLADE


(57) A moving blade 21d is disposed in a last stage closest to a diffuser 10 among a plurality of stages of a turbine 9 including a turbine rotor 12 and a stationary body 14. The diffuser 10 is connected to an outlet side of the stationary body 14. A distal end of the moving blade 21d is opposed to a seal fin 38 provided in the stationary body 14. The moving blade 21d includes a blade section 26, a cover 27 and a guide 32 provided on a moving blade distal end face 31, which is a surface of the cover 27. The moving blade distal end face 31 extends in a rotation axis direction of the turbine rotor 12, and the guide 32 includes a guide surface 41 located on a side close to the diffuser 10 with respect to the seal fin 38 and formed to incline upward in a direction from the seal fin 38 toward the diffuser 10.







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Search report