SEALING DEVICE FOR GAS TURBINE, GAS TURBINE, AND AIRCRAFT ENGINE

Title:

SEALING DEVICE FOR GAS TURBINE, GAS TURBINE, AND AIRCRAFT ENGINE

Document Type and Number:

WIPO Patent Application WO/2016/143230

Kind Code:

A1

Abstract:

Provided are a sealing device for a gas turbine, a gas turbine, and an aircraft engine, said sealing device being provided with a first sealing section (51), which is provided between a platform (42) of a rotor blade (28) of a turbine (13) and an inside shroud (46) of a stator blade (27), and a noise damper (55), which has a closed-space section (54) communicating via an aperture (53) with a disc cavity (52) between the rotor blade (28) and the stator blade (27). Thus, the efficiency of the gas turbine is improved by enabling the infiltration of combustion gas into the turbine main body to be prevented by using a small amount of purge air.

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Inventors:

IKEDA KAZUFUMI (JP)
KITAGAWA HITOSHI (JP)
ARAKI MASATO (JP)
OKABE YOSHIYUKI (JP)

Application Number:

PCT/JP2015/085882

Publication Date:

September 15, 2016

Filing Date:

December 22, 2015

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

F01D11/02; F02B27/00; F02C7/28; F16J15/447; F16J15/54

Foreign References:

JPH10252412A	1998-09-22
US4218189A	1980-08-19
JPH10266807A	1998-10-06

Attorney, Agent or Firm:

SAKAI INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Sakai international patent firm (JP)

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