The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 22, 2020

Filed:

Mar. 06, 2017
Applicant:

Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;

Inventors:

Nobuyori Yagi, Tokyo, JP;

Naoyuki Nagai, Tokyo, JP;

Shin Yanagisawa, Tokyo, JP;

Yuki Nakamura, Hiroshima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/22 (2006.01); F01D 5/16 (2006.01); F01D 5/20 (2006.01); F01D 5/30 (2006.01);
U.S. Cl.
CPC ...
F01D 5/225 (2013.01); F01D 5/16 (2013.01); F01D 5/20 (2013.01); F01D 5/3007 (2013.01); F05D 2240/307 (2013.01); F05D 2250/12 (2013.01); F05D 2250/191 (2013.01); F05D 2250/192 (2013.01); F05D 2250/193 (2013.01); F05D 2250/291 (2013.01); F05D 2250/292 (2013.01); F05D 2250/294 (2013.01); F05D 2250/72 (2013.01); F05D 2260/96 (2013.01); F05D 2300/501 (2013.01); F05D 2300/506 (2013.01);
Abstract

In a turbine rotor blade assemblyof the present invention, each turbine rotor bladeincludes a platformhaving a blade rootfixed to a turbine disk, a profilerising from the platform, and a shroudprovided at a top end of the profile. The shroudof the present invention includes a first contact end partthat comes into contact with an adjacent shroud adjacent to one end side in a circumferential direction, a second contact end partthat comes into contact with an another adjacent shroud adjacent to the other end side in the circumferential direction, and a main body part disposed between the first and second contact end partsand. One or both of the first and second contact end partsandare lower in rigidity than the main body part.


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