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.
Patent No.:
Date of Patent:
Jun. 18, 2024
Filed:
May. 20, 2021
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventor:
Tsuyoshi Miyabe, Yokohama, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/28 (2006.01); F01D 25/16 (2006.01);
U.S. Cl.
CPC ...
F01D 25/285 (2013.01); F01D 25/162 (2013.01); F05D 2220/31 (2013.01); F05D 2230/72 (2013.01);
Abstract
A maintenance method for a steam turbine including a rotor, a casing for accommodating the rotor, and a bearing box for accommodating a bearing which supports the rotor includes: a step of installing an expansion-and-contraction member below the rotor by using an upward facing flat surface disposed between the casing and the bearing box in an axial direction; and a step of pushing up the rotor upward by the expansion-and-contraction member.