(19)
(11) EP 0 103 260 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.09.1984 Bulletin 1984/39

(43) Date of publication A2:
21.03.1984 Bulletin 1984/12

(21) Application number: 83108779

(22) Date of filing: 06.09.1983
(84) Designated Contracting States:
CH DE FR GB IT LI

(30) Priority: 06.09.1982 JP 15392382
15.11.1982 JP 19898682

(71) Applicant: HITACHI, LTD.
 ()

(72) Inventors:
  • Noda, Masami
     ()
  • Ikeguchi, Takashi
     ()
  • Kawaike, Kazuhiko
     ()
  • Wada, Katsuo
     ()
  • Kato, Yasuhiro, Mr.
     ()

   


(54) Clearance control for turbine blade tips


(57) A turbine comprising a casing in which are disposed a turbine rotor assembly which provides a plurality of turbine blades and a guide vane assembly which provides a plurality of guide vane segments, and there being shrouds spaced from turbine blade tips. To control the clearance between the turbine blade tips and the shrouds at a small value by simple structure, the guide vane segments are made movable freely in the radial direction and inside parts of the guide vane segments are fixed to a stationary member.






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