Title:
AXIAL FLOW COMPRESSOR, GAS TURBINE INCLUDING AXIAL FLOW COMPRESSOR, AND AXIAL FLOW COMPRESSOR REMODELING METHOD
Document Type and Number:
Japanese Patent JP2015025428
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an axial flow compressor relatively a few in restrictions at a time of changing a blade shape, blade attachment positions or the number of stages of stationary blades.SOLUTION: An axial flow compressor comprises: a rotor that is a rotary shaft; a plurality of rotor blades attached to the rotor; a compressor casing covering the rotor and the rotor blades; and a plurality of stationary blades attached to the compressor casing, a plurality of rotor blade rows each formed by arranging a plurality of rotor blades in a circumferential direction of the rotary shaft and a plurality of static blade rows each formed by arranging a plurality of static blades in the circumferential direction of the rotary shaft being arranged in an axial direction of the rotary shaft. A dovetail that is a base for supporting blade portions is provided in the stationary blades and two or more stationary blades belonging to the different stationary blade rows are attached to one dovetail groove formed in the compressor casing and extending in the circumferential direction of the rotary shaft for attaching the stationary blades by inserting the dovetail into the dovetail groove.
Inventors:
TAKEDA HIROKI
TAKAHASHI YASUO
MYOREN CHIHIRO
TAKAHASHI YASUO
MYOREN CHIHIRO
Application Number:
JP2013156261A
Publication Date:
February 05, 2015
Filing Date:
July 29, 2013
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS
International Classes:
F04D29/56
Domestic Patent References:
| JP2011137454A | 2011-07-14 |
Foreign References:
| US7445426B1 | 2008-11-04 | |||
| US20120045312A1 | 2012-02-23 |
Attorney, Agent or Firm:
Patent business corporation development-of-knowledge international patent firm
Polaire Intellectual Property Corporation
Polaire Intellectual Property Corporation