ROTOR BLADE, GAS TURBINE PROVIDED WITH SAME, AND ROTOR BLADE MANUFACTURING METHOD

Title:

ROTOR BLADE, GAS TURBINE PROVIDED WITH SAME, AND ROTOR BLADE MANUFACTURING METHOD

Document Type and Number:

WIPO Patent Application WO/2017/047502

Kind Code:

A1

Abstract:

A rotor blade (50) includes a blade path (71) that extends in the blade height direction (Dwh), a platform path (81) formed in a platform (60), and a linking path (75) that connects from the outer surface (93) of an axial mounting section (90) to the blade path (71) via the platform path (81). The inner surface that demarcates an inflow path section (82) of the platform path (81) includes an axial-side inner surface (88) facing the gas path side. The axial-side inner surface (88) broadens in the direction in which there are more blade thickness-direction (Dwt) components than there are blade height-direction (Dwh) components. The inner surface that demarcates the linking path (75) is connected to the axial-side inner surface (88).

Inventors:

TAKAMURA KEITA (JP)
HADA SATOSHI (JP)
ATSUMI HIDEKATSU (JP)
SHINTANI TOMOFUMI (JP)

Application Number:

PCT/JP2016/076496

Publication Date:

March 23, 2017

Filing Date:

September 08, 2016

Export Citation:

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Assignee:

MITSUBISHI HITACHI POWER SYS (JP)

International Classes:

F01D5/18; B22C9/04; B22C9/10; B22D29/00; B23H9/10; B23H9/14; F02C7/00; F02C7/18

Foreign References:

JP2012132438A	2012-07-12
JPH08505195A	1996-06-04
JP2008202547A	2008-09-04
JP2015123497A	2015-07-06
JP2014223620A	2014-12-04

Other References: